1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or https://opensource.org/licenses/CDDL-1.0. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2019 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2016 Nexenta Systems, Inc. 27 * Copyright (c) 2017, 2018 Lawrence Livermore National Security, LLC. 28 * Copyright (c) 2015, 2017, Intel Corporation. 29 * Copyright (c) 2020 Datto Inc. 30 * Copyright (c) 2020, The FreeBSD Foundation [1] 31 * 32 * [1] Portions of this software were developed by Allan Jude 33 * under sponsorship from the FreeBSD Foundation. 34 * Copyright (c) 2021 Allan Jude 35 * Copyright (c) 2021 Toomas Soome <tsoome@me.com> 36 * Copyright (c) 2023, Klara Inc. 37 * Copyright (c) 2023, Rob Norris <robn@despairlabs.com> 38 */ 39 40#include <stdio.h> 41#include <unistd.h> 42#include <stdlib.h> 43#include <ctype.h> 44#include <getopt.h> 45#include <openssl/evp.h> 46#include <sys/zfs_context.h> 47#include <sys/spa.h> 48#include <sys/spa_impl.h> 49#include <sys/dmu.h> 50#include <sys/zap.h> 51#include <sys/fs/zfs.h> 52#include <sys/zfs_znode.h> 53#include <sys/zfs_sa.h> 54#include <sys/sa.h> 55#include <sys/sa_impl.h> 56#include <sys/vdev.h> 57#include <sys/vdev_impl.h> 58#include <sys/metaslab_impl.h> 59#include <sys/dmu_objset.h> 60#include <sys/dsl_dir.h> 61#include <sys/dsl_dataset.h> 62#include <sys/dsl_pool.h> 63#include <sys/dsl_bookmark.h> 64#include <sys/dbuf.h> 65#include <sys/zil.h> 66#include <sys/zil_impl.h> 67#include <sys/stat.h> 68#include <sys/resource.h> 69#include <sys/dmu_send.h> 70#include <sys/dmu_traverse.h> 71#include <sys/zio_checksum.h> 72#include <sys/zio_compress.h> 73#include <sys/zfs_fuid.h> 74#include <sys/arc.h> 75#include <sys/arc_impl.h> 76#include <sys/ddt.h> 77#include <sys/ddt_impl.h> 78#include <sys/zfeature.h> 79#include <sys/abd.h> 80#include <sys/blkptr.h> 81#include <sys/dsl_crypt.h> 82#include <sys/dsl_scan.h> 83#include <sys/btree.h> 84#include <sys/brt.h> 85#include <sys/brt_impl.h> 86#include <zfs_comutil.h> 87#include <sys/zstd/zstd.h> 88#include <sys/backtrace.h> 89 90#include <libnvpair.h> 91#include <libzutil.h> 92 93#include <libzdb.h> 94 95#include "zdb.h" 96 97 98extern int reference_tracking_enable; 99extern int zfs_recover; 100extern uint_t zfs_vdev_async_read_max_active; 101extern boolean_t spa_load_verify_dryrun; 102extern boolean_t spa_mode_readable_spacemaps; 103extern uint_t zfs_reconstruct_indirect_combinations_max; 104extern uint_t zfs_btree_verify_intensity; 105 106static const char cmdname[] = "zdb"; 107uint8_t dump_opt[256]; 108 109typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 110 111static uint64_t *zopt_metaslab = NULL; 112static unsigned zopt_metaslab_args = 0; 113 114 115static zopt_object_range_t *zopt_object_ranges = NULL; 116static unsigned zopt_object_args = 0; 117 118static int flagbits[256]; 119 120 121static uint64_t max_inflight_bytes = 256 * 1024 * 1024; /* 256MB */ 122static int leaked_objects = 0; 123static range_tree_t *mos_refd_objs; 124static spa_t *spa; 125static objset_t *os; 126static boolean_t kernel_init_done; 127 128static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *, 129 boolean_t); 130static void mos_obj_refd(uint64_t); 131static void mos_obj_refd_multiple(uint64_t); 132static int dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t free, 133 dmu_tx_t *tx); 134 135 136 137static void zdb_print_blkptr(const blkptr_t *bp, int flags); 138static void zdb_exit(int reason); 139 140typedef struct sublivelist_verify_block_refcnt { 141 /* block pointer entry in livelist being verified */ 142 blkptr_t svbr_blk; 143 144 /* 145 * Refcount gets incremented to 1 when we encounter the first 146 * FREE entry for the svfbr block pointer and a node for it 147 * is created in our ZDB verification/tracking metadata. 148 * 149 * As we encounter more FREE entries we increment this counter 150 * and similarly decrement it whenever we find the respective 151 * ALLOC entries for this block. 152 * 153 * When the refcount gets to 0 it means that all the FREE and 154 * ALLOC entries of this block have paired up and we no longer 155 * need to track it in our verification logic (e.g. the node 156 * containing this struct in our verification data structure 157 * should be freed). 158 * 159 * [refer to sublivelist_verify_blkptr() for the actual code] 160 */ 161 uint32_t svbr_refcnt; 162} sublivelist_verify_block_refcnt_t; 163 164static int 165sublivelist_block_refcnt_compare(const void *larg, const void *rarg) 166{ 167 const sublivelist_verify_block_refcnt_t *l = larg; 168 const sublivelist_verify_block_refcnt_t *r = rarg; 169 return (livelist_compare(&l->svbr_blk, &r->svbr_blk)); 170} 171 172static int 173sublivelist_verify_blkptr(void *arg, const blkptr_t *bp, boolean_t free, 174 dmu_tx_t *tx) 175{ 176 ASSERT3P(tx, ==, NULL); 177 struct sublivelist_verify *sv = arg; 178 sublivelist_verify_block_refcnt_t current = { 179 .svbr_blk = *bp, 180 181 /* 182 * Start with 1 in case this is the first free entry. 183 * This field is not used for our B-Tree comparisons 184 * anyway. 185 */ 186 .svbr_refcnt = 1, 187 }; 188 189 zfs_btree_index_t where; 190 sublivelist_verify_block_refcnt_t *pair = 191 zfs_btree_find(&sv->sv_pair, ¤t, &where); 192 if (free) { 193 if (pair == NULL) { 194 /* first free entry for this block pointer */ 195 zfs_btree_add(&sv->sv_pair, ¤t); 196 } else { 197 pair->svbr_refcnt++; 198 } 199 } else { 200 if (pair == NULL) { 201 /* block that is currently marked as allocated */ 202 for (int i = 0; i < SPA_DVAS_PER_BP; i++) { 203 if (DVA_IS_EMPTY(&bp->blk_dva[i])) 204 break; 205 sublivelist_verify_block_t svb = { 206 .svb_dva = bp->blk_dva[i], 207 .svb_allocated_txg = 208 BP_GET_LOGICAL_BIRTH(bp) 209 }; 210 211 if (zfs_btree_find(&sv->sv_leftover, &svb, 212 &where) == NULL) { 213 zfs_btree_add_idx(&sv->sv_leftover, 214 &svb, &where); 215 } 216 } 217 } else { 218 /* alloc matches a free entry */ 219 pair->svbr_refcnt--; 220 if (pair->svbr_refcnt == 0) { 221 /* all allocs and frees have been matched */ 222 zfs_btree_remove_idx(&sv->sv_pair, &where); 223 } 224 } 225 } 226 227 return (0); 228} 229 230static int 231sublivelist_verify_func(void *args, dsl_deadlist_entry_t *dle) 232{ 233 int err; 234 struct sublivelist_verify *sv = args; 235 236 zfs_btree_create(&sv->sv_pair, sublivelist_block_refcnt_compare, NULL, 237 sizeof (sublivelist_verify_block_refcnt_t)); 238 239 err = bpobj_iterate_nofree(&dle->dle_bpobj, sublivelist_verify_blkptr, 240 sv, NULL); 241 242 sublivelist_verify_block_refcnt_t *e; 243 zfs_btree_index_t *cookie = NULL; 244 while ((e = zfs_btree_destroy_nodes(&sv->sv_pair, &cookie)) != NULL) { 245 char blkbuf[BP_SPRINTF_LEN]; 246 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), 247 &e->svbr_blk, B_TRUE); 248 (void) printf("\tERROR: %d unmatched FREE(s): %s\n", 249 e->svbr_refcnt, blkbuf); 250 } 251 zfs_btree_destroy(&sv->sv_pair); 252 253 return (err); 254} 255 256static int 257livelist_block_compare(const void *larg, const void *rarg) 258{ 259 const sublivelist_verify_block_t *l = larg; 260 const sublivelist_verify_block_t *r = rarg; 261 262 if (DVA_GET_VDEV(&l->svb_dva) < DVA_GET_VDEV(&r->svb_dva)) 263 return (-1); 264 else if (DVA_GET_VDEV(&l->svb_dva) > DVA_GET_VDEV(&r->svb_dva)) 265 return (+1); 266 267 if (DVA_GET_OFFSET(&l->svb_dva) < DVA_GET_OFFSET(&r->svb_dva)) 268 return (-1); 269 else if (DVA_GET_OFFSET(&l->svb_dva) > DVA_GET_OFFSET(&r->svb_dva)) 270 return (+1); 271 272 if (DVA_GET_ASIZE(&l->svb_dva) < DVA_GET_ASIZE(&r->svb_dva)) 273 return (-1); 274 else if (DVA_GET_ASIZE(&l->svb_dva) > DVA_GET_ASIZE(&r->svb_dva)) 275 return (+1); 276 277 return (0); 278} 279 280/* 281 * Check for errors in a livelist while tracking all unfreed ALLOCs in the 282 * sublivelist_verify_t: sv->sv_leftover 283 */ 284static void 285livelist_verify(dsl_deadlist_t *dl, void *arg) 286{ 287 sublivelist_verify_t *sv = arg; 288 dsl_deadlist_iterate(dl, sublivelist_verify_func, sv); 289} 290 291/* 292 * Check for errors in the livelist entry and discard the intermediary 293 * data structures 294 */ 295static int 296sublivelist_verify_lightweight(void *args, dsl_deadlist_entry_t *dle) 297{ 298 (void) args; 299 sublivelist_verify_t sv; 300 zfs_btree_create(&sv.sv_leftover, livelist_block_compare, NULL, 301 sizeof (sublivelist_verify_block_t)); 302 int err = sublivelist_verify_func(&sv, dle); 303 zfs_btree_clear(&sv.sv_leftover); 304 zfs_btree_destroy(&sv.sv_leftover); 305 return (err); 306} 307 308typedef struct metaslab_verify { 309 /* 310 * Tree containing all the leftover ALLOCs from the livelists 311 * that are part of this metaslab. 312 */ 313 zfs_btree_t mv_livelist_allocs; 314 315 /* 316 * Metaslab information. 317 */ 318 uint64_t mv_vdid; 319 uint64_t mv_msid; 320 uint64_t mv_start; 321 uint64_t mv_end; 322 323 /* 324 * What's currently allocated for this metaslab. 325 */ 326 range_tree_t *mv_allocated; 327} metaslab_verify_t; 328 329typedef void ll_iter_t(dsl_deadlist_t *ll, void *arg); 330 331typedef int (*zdb_log_sm_cb_t)(spa_t *spa, space_map_entry_t *sme, uint64_t txg, 332 void *arg); 333 334typedef struct unflushed_iter_cb_arg { 335 spa_t *uic_spa; 336 uint64_t uic_txg; 337 void *uic_arg; 338 zdb_log_sm_cb_t uic_cb; 339} unflushed_iter_cb_arg_t; 340 341static int 342iterate_through_spacemap_logs_cb(space_map_entry_t *sme, void *arg) 343{ 344 unflushed_iter_cb_arg_t *uic = arg; 345 return (uic->uic_cb(uic->uic_spa, sme, uic->uic_txg, uic->uic_arg)); 346} 347 348static void 349iterate_through_spacemap_logs(spa_t *spa, zdb_log_sm_cb_t cb, void *arg) 350{ 351 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 352 return; 353 354 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 355 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 356 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 357 space_map_t *sm = NULL; 358 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 359 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 360 361 unflushed_iter_cb_arg_t uic = { 362 .uic_spa = spa, 363 .uic_txg = sls->sls_txg, 364 .uic_arg = arg, 365 .uic_cb = cb 366 }; 367 VERIFY0(space_map_iterate(sm, space_map_length(sm), 368 iterate_through_spacemap_logs_cb, &uic)); 369 space_map_close(sm); 370 } 371 spa_config_exit(spa, SCL_CONFIG, FTAG); 372} 373 374static void 375verify_livelist_allocs(metaslab_verify_t *mv, uint64_t txg, 376 uint64_t offset, uint64_t size) 377{ 378 sublivelist_verify_block_t svb = {{{0}}}; 379 DVA_SET_VDEV(&svb.svb_dva, mv->mv_vdid); 380 DVA_SET_OFFSET(&svb.svb_dva, offset); 381 DVA_SET_ASIZE(&svb.svb_dva, size); 382 zfs_btree_index_t where; 383 uint64_t end_offset = offset + size; 384 385 /* 386 * Look for an exact match for spacemap entry in the livelist entries. 387 * Then, look for other livelist entries that fall within the range 388 * of the spacemap entry as it may have been condensed 389 */ 390 sublivelist_verify_block_t *found = 391 zfs_btree_find(&mv->mv_livelist_allocs, &svb, &where); 392 if (found == NULL) { 393 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where); 394 } 395 for (; found != NULL && DVA_GET_VDEV(&found->svb_dva) == mv->mv_vdid && 396 DVA_GET_OFFSET(&found->svb_dva) < end_offset; 397 found = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) { 398 if (found->svb_allocated_txg <= txg) { 399 (void) printf("ERROR: Livelist ALLOC [%llx:%llx] " 400 "from TXG %llx FREED at TXG %llx\n", 401 (u_longlong_t)DVA_GET_OFFSET(&found->svb_dva), 402 (u_longlong_t)DVA_GET_ASIZE(&found->svb_dva), 403 (u_longlong_t)found->svb_allocated_txg, 404 (u_longlong_t)txg); 405 } 406 } 407} 408 409static int 410metaslab_spacemap_validation_cb(space_map_entry_t *sme, void *arg) 411{ 412 metaslab_verify_t *mv = arg; 413 uint64_t offset = sme->sme_offset; 414 uint64_t size = sme->sme_run; 415 uint64_t txg = sme->sme_txg; 416 417 if (sme->sme_type == SM_ALLOC) { 418 if (range_tree_contains(mv->mv_allocated, 419 offset, size)) { 420 (void) printf("ERROR: DOUBLE ALLOC: " 421 "%llu [%llx:%llx] " 422 "%llu:%llu LOG_SM\n", 423 (u_longlong_t)txg, (u_longlong_t)offset, 424 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid, 425 (u_longlong_t)mv->mv_msid); 426 } else { 427 range_tree_add(mv->mv_allocated, 428 offset, size); 429 } 430 } else { 431 if (!range_tree_contains(mv->mv_allocated, 432 offset, size)) { 433 (void) printf("ERROR: DOUBLE FREE: " 434 "%llu [%llx:%llx] " 435 "%llu:%llu LOG_SM\n", 436 (u_longlong_t)txg, (u_longlong_t)offset, 437 (u_longlong_t)size, (u_longlong_t)mv->mv_vdid, 438 (u_longlong_t)mv->mv_msid); 439 } else { 440 range_tree_remove(mv->mv_allocated, 441 offset, size); 442 } 443 } 444 445 if (sme->sme_type != SM_ALLOC) { 446 /* 447 * If something is freed in the spacemap, verify that 448 * it is not listed as allocated in the livelist. 449 */ 450 verify_livelist_allocs(mv, txg, offset, size); 451 } 452 return (0); 453} 454 455static int 456spacemap_check_sm_log_cb(spa_t *spa, space_map_entry_t *sme, 457 uint64_t txg, void *arg) 458{ 459 metaslab_verify_t *mv = arg; 460 uint64_t offset = sme->sme_offset; 461 uint64_t vdev_id = sme->sme_vdev; 462 463 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 464 465 /* skip indirect vdevs */ 466 if (!vdev_is_concrete(vd)) 467 return (0); 468 469 if (vdev_id != mv->mv_vdid) 470 return (0); 471 472 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 473 if (ms->ms_id != mv->mv_msid) 474 return (0); 475 476 if (txg < metaslab_unflushed_txg(ms)) 477 return (0); 478 479 480 ASSERT3U(txg, ==, sme->sme_txg); 481 return (metaslab_spacemap_validation_cb(sme, mv)); 482} 483 484static void 485spacemap_check_sm_log(spa_t *spa, metaslab_verify_t *mv) 486{ 487 iterate_through_spacemap_logs(spa, spacemap_check_sm_log_cb, mv); 488} 489 490static void 491spacemap_check_ms_sm(space_map_t *sm, metaslab_verify_t *mv) 492{ 493 if (sm == NULL) 494 return; 495 496 VERIFY0(space_map_iterate(sm, space_map_length(sm), 497 metaslab_spacemap_validation_cb, mv)); 498} 499 500static void iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg); 501 502/* 503 * Transfer blocks from sv_leftover tree to the mv_livelist_allocs if 504 * they are part of that metaslab (mv_msid). 505 */ 506static void 507mv_populate_livelist_allocs(metaslab_verify_t *mv, sublivelist_verify_t *sv) 508{ 509 zfs_btree_index_t where; 510 sublivelist_verify_block_t *svb; 511 ASSERT3U(zfs_btree_numnodes(&mv->mv_livelist_allocs), ==, 0); 512 for (svb = zfs_btree_first(&sv->sv_leftover, &where); 513 svb != NULL; 514 svb = zfs_btree_next(&sv->sv_leftover, &where, &where)) { 515 if (DVA_GET_VDEV(&svb->svb_dva) != mv->mv_vdid) 516 continue; 517 518 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start && 519 (DVA_GET_OFFSET(&svb->svb_dva) + 520 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_start) { 521 (void) printf("ERROR: Found block that crosses " 522 "metaslab boundary: <%llu:%llx:%llx>\n", 523 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva), 524 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 525 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva)); 526 continue; 527 } 528 529 if (DVA_GET_OFFSET(&svb->svb_dva) < mv->mv_start) 530 continue; 531 532 if (DVA_GET_OFFSET(&svb->svb_dva) >= mv->mv_end) 533 continue; 534 535 if ((DVA_GET_OFFSET(&svb->svb_dva) + 536 DVA_GET_ASIZE(&svb->svb_dva)) > mv->mv_end) { 537 (void) printf("ERROR: Found block that crosses " 538 "metaslab boundary: <%llu:%llx:%llx>\n", 539 (u_longlong_t)DVA_GET_VDEV(&svb->svb_dva), 540 (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 541 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva)); 542 continue; 543 } 544 545 zfs_btree_add(&mv->mv_livelist_allocs, svb); 546 } 547 548 for (svb = zfs_btree_first(&mv->mv_livelist_allocs, &where); 549 svb != NULL; 550 svb = zfs_btree_next(&mv->mv_livelist_allocs, &where, &where)) { 551 zfs_btree_remove(&sv->sv_leftover, svb); 552 } 553} 554 555/* 556 * [Livelist Check] 557 * Iterate through all the sublivelists and: 558 * - report leftover frees (**) 559 * - record leftover ALLOCs together with their TXG [see Cross Check] 560 * 561 * (**) Note: Double ALLOCs are valid in datasets that have dedup 562 * enabled. Similarly double FREEs are allowed as well but 563 * only if they pair up with a corresponding ALLOC entry once 564 * we our done with our sublivelist iteration. 565 * 566 * [Spacemap Check] 567 * for each metaslab: 568 * - iterate over spacemap and then the metaslab's entries in the 569 * spacemap log, then report any double FREEs and ALLOCs (do not 570 * blow up). 571 * 572 * [Cross Check] 573 * After finishing the Livelist Check phase and while being in the 574 * Spacemap Check phase, we find all the recorded leftover ALLOCs 575 * of the livelist check that are part of the metaslab that we are 576 * currently looking at in the Spacemap Check. We report any entries 577 * that are marked as ALLOCs in the livelists but have been actually 578 * freed (and potentially allocated again) after their TXG stamp in 579 * the spacemaps. Also report any ALLOCs from the livelists that 580 * belong to indirect vdevs (e.g. their vdev completed removal). 581 * 582 * Note that this will miss Log Spacemap entries that cancelled each other 583 * out before being flushed to the metaslab, so we are not guaranteed 584 * to match all erroneous ALLOCs. 585 */ 586static void 587livelist_metaslab_validate(spa_t *spa) 588{ 589 (void) printf("Verifying deleted livelist entries\n"); 590 591 sublivelist_verify_t sv; 592 zfs_btree_create(&sv.sv_leftover, livelist_block_compare, NULL, 593 sizeof (sublivelist_verify_block_t)); 594 iterate_deleted_livelists(spa, livelist_verify, &sv); 595 596 (void) printf("Verifying metaslab entries\n"); 597 vdev_t *rvd = spa->spa_root_vdev; 598 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 599 vdev_t *vd = rvd->vdev_child[c]; 600 601 if (!vdev_is_concrete(vd)) 602 continue; 603 604 for (uint64_t mid = 0; mid < vd->vdev_ms_count; mid++) { 605 metaslab_t *m = vd->vdev_ms[mid]; 606 607 (void) fprintf(stderr, 608 "\rverifying concrete vdev %llu, " 609 "metaslab %llu of %llu ...", 610 (longlong_t)vd->vdev_id, 611 (longlong_t)mid, 612 (longlong_t)vd->vdev_ms_count); 613 614 uint64_t shift, start; 615 range_seg_type_t type = 616 metaslab_calculate_range_tree_type(vd, m, 617 &start, &shift); 618 metaslab_verify_t mv; 619 mv.mv_allocated = range_tree_create(NULL, 620 type, NULL, start, shift); 621 mv.mv_vdid = vd->vdev_id; 622 mv.mv_msid = m->ms_id; 623 mv.mv_start = m->ms_start; 624 mv.mv_end = m->ms_start + m->ms_size; 625 zfs_btree_create(&mv.mv_livelist_allocs, 626 livelist_block_compare, NULL, 627 sizeof (sublivelist_verify_block_t)); 628 629 mv_populate_livelist_allocs(&mv, &sv); 630 631 spacemap_check_ms_sm(m->ms_sm, &mv); 632 spacemap_check_sm_log(spa, &mv); 633 634 range_tree_vacate(mv.mv_allocated, NULL, NULL); 635 range_tree_destroy(mv.mv_allocated); 636 zfs_btree_clear(&mv.mv_livelist_allocs); 637 zfs_btree_destroy(&mv.mv_livelist_allocs); 638 } 639 } 640 (void) fprintf(stderr, "\n"); 641 642 /* 643 * If there are any segments in the leftover tree after we walked 644 * through all the metaslabs in the concrete vdevs then this means 645 * that we have segments in the livelists that belong to indirect 646 * vdevs and are marked as allocated. 647 */ 648 if (zfs_btree_numnodes(&sv.sv_leftover) == 0) { 649 zfs_btree_destroy(&sv.sv_leftover); 650 return; 651 } 652 (void) printf("ERROR: Found livelist blocks marked as allocated " 653 "for indirect vdevs:\n"); 654 655 zfs_btree_index_t *where = NULL; 656 sublivelist_verify_block_t *svb; 657 while ((svb = zfs_btree_destroy_nodes(&sv.sv_leftover, &where)) != 658 NULL) { 659 int vdev_id = DVA_GET_VDEV(&svb->svb_dva); 660 ASSERT3U(vdev_id, <, rvd->vdev_children); 661 vdev_t *vd = rvd->vdev_child[vdev_id]; 662 ASSERT(!vdev_is_concrete(vd)); 663 (void) printf("<%d:%llx:%llx> TXG %llx\n", 664 vdev_id, (u_longlong_t)DVA_GET_OFFSET(&svb->svb_dva), 665 (u_longlong_t)DVA_GET_ASIZE(&svb->svb_dva), 666 (u_longlong_t)svb->svb_allocated_txg); 667 } 668 (void) printf("\n"); 669 zfs_btree_destroy(&sv.sv_leftover); 670} 671 672/* 673 * These libumem hooks provide a reasonable set of defaults for the allocator's 674 * debugging facilities. 675 */ 676const char * 677_umem_debug_init(void) 678{ 679 return ("default,verbose"); /* $UMEM_DEBUG setting */ 680} 681 682const char * 683_umem_logging_init(void) 684{ 685 return ("fail,contents"); /* $UMEM_LOGGING setting */ 686} 687 688static void 689usage(void) 690{ 691 (void) fprintf(stderr, 692 "Usage:\t%s [-AbcdDFGhikLMPsvXy] [-e [-V] [-p <path> ...]] " 693 "[-I <inflight I/Os>]\n" 694 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 695 "\t\t[-K <key>]\n" 696 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]]\n" 697 "\t%s [-AdiPv] [-e [-V] [-p <path> ...]] [-U <cache>] [-K <key>]\n" 698 "\t\t[<poolname>[/<dataset | objset id>] [<object | range> ...]\n" 699 "\t%s -B [-e [-V] [-p <path> ...]] [-I <inflight I/Os>]\n" 700 "\t\t[-o <var>=<value>]... [-t <txg>] [-U <cache>] [-x <dumpdir>]\n" 701 "\t\t[-K <key>] <poolname>/<objset id> [<backupflags>]\n" 702 "\t%s [-v] <bookmark>\n" 703 "\t%s -C [-A] [-U <cache>] [<poolname>]\n" 704 "\t%s -l [-Aqu] <device>\n" 705 "\t%s -m [-AFLPX] [-e [-V] [-p <path> ...]] [-t <txg>] " 706 "[-U <cache>]\n\t\t<poolname> [<vdev> [<metaslab> ...]]\n" 707 "\t%s -O [-K <key>] <dataset> <path>\n" 708 "\t%s -r [-K <key>] <dataset> <path> <destination>\n" 709 "\t%s -R [-A] [-e [-V] [-p <path> ...]] [-U <cache>]\n" 710 "\t\t<poolname> <vdev>:<offset>:<size>[:<flags>]\n" 711 "\t%s -E [-A] word0:word1:...:word15\n" 712 "\t%s -S [-AP] [-e [-V] [-p <path> ...]] [-U <cache>] " 713 "<poolname>\n\n", 714 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, 715 cmdname, cmdname, cmdname, cmdname, cmdname); 716 717 (void) fprintf(stderr, " Dataset name must include at least one " 718 "separator character '/' or '@'\n"); 719 (void) fprintf(stderr, " If dataset name is specified, only that " 720 "dataset is dumped\n"); 721 (void) fprintf(stderr, " If object numbers or object number " 722 "ranges are specified, only those\n" 723 " objects or ranges are dumped.\n\n"); 724 (void) fprintf(stderr, 725 " Object ranges take the form <start>:<end>[:<flags>]\n" 726 " start Starting object number\n" 727 " end Ending object number, or -1 for no upper bound\n" 728 " flags Optional flags to select object types:\n" 729 " A All objects (this is the default)\n" 730 " d ZFS directories\n" 731 " f ZFS files \n" 732 " m SPA space maps\n" 733 " z ZAPs\n" 734 " - Negate effect of next flag\n\n"); 735 (void) fprintf(stderr, " Options to control amount of output:\n"); 736 (void) fprintf(stderr, " -b --block-stats " 737 "block statistics\n"); 738 (void) fprintf(stderr, " -B --backup " 739 "backup stream\n"); 740 (void) fprintf(stderr, " -c --checksum " 741 "checksum all metadata (twice for all data) blocks\n"); 742 (void) fprintf(stderr, " -C --config " 743 "config (or cachefile if alone)\n"); 744 (void) fprintf(stderr, " -d --datasets " 745 "dataset(s)\n"); 746 (void) fprintf(stderr, " -D --dedup-stats " 747 "dedup statistics\n"); 748 (void) fprintf(stderr, " -E --embedded-block-pointer=INTEGER\n" 749 " decode and display block " 750 "from an embedded block pointer\n"); 751 (void) fprintf(stderr, " -h --history " 752 "pool history\n"); 753 (void) fprintf(stderr, " -i --intent-logs " 754 "intent logs\n"); 755 (void) fprintf(stderr, " -l --label " 756 "read label contents\n"); 757 (void) fprintf(stderr, " -k --checkpointed-state " 758 "examine the checkpointed state of the pool\n"); 759 (void) fprintf(stderr, " -L --disable-leak-tracking " 760 "disable leak tracking (do not load spacemaps)\n"); 761 (void) fprintf(stderr, " -m --metaslabs " 762 "metaslabs\n"); 763 (void) fprintf(stderr, " -M --metaslab-groups " 764 "metaslab groups\n"); 765 (void) fprintf(stderr, " -O --object-lookups " 766 "perform object lookups by path\n"); 767 (void) fprintf(stderr, " -r --copy-object " 768 "copy an object by path to file\n"); 769 (void) fprintf(stderr, " -R --read-block " 770 "read and display block from a device\n"); 771 (void) fprintf(stderr, " -s --io-stats " 772 "report stats on zdb's I/O\n"); 773 (void) fprintf(stderr, " -S --simulate-dedup " 774 "simulate dedup to measure effect\n"); 775 (void) fprintf(stderr, " -v --verbose " 776 "verbose (applies to all others)\n"); 777 (void) fprintf(stderr, " -y --livelist " 778 "perform livelist and metaslab validation on any livelists being " 779 "deleted\n\n"); 780 (void) fprintf(stderr, " Below options are intended for use " 781 "with other options:\n"); 782 (void) fprintf(stderr, " -A --ignore-assertions " 783 "ignore assertions (-A), enable panic recovery (-AA) or both " 784 "(-AAA)\n"); 785 (void) fprintf(stderr, " -e --exported " 786 "pool is exported/destroyed/has altroot/not in a cachefile\n"); 787 (void) fprintf(stderr, " -F --automatic-rewind " 788 "attempt automatic rewind within safe range of transaction " 789 "groups\n"); 790 (void) fprintf(stderr, " -G --dump-debug-msg " 791 "dump zfs_dbgmsg buffer before exiting\n"); 792 (void) fprintf(stderr, " -I --inflight=INTEGER " 793 "specify the maximum number of checksumming I/Os " 794 "[default is 200]\n"); 795 (void) fprintf(stderr, " -K --key=KEY " 796 "decryption key for encrypted dataset\n"); 797 (void) fprintf(stderr, " -o --option=\"OPTION=INTEGER\" " 798 "set global variable to an unsigned 32-bit integer\n"); 799 (void) fprintf(stderr, " -p --path==PATH " 800 "use one or more with -e to specify path to vdev dir\n"); 801 (void) fprintf(stderr, " -P --parseable " 802 "print numbers in parseable form\n"); 803 (void) fprintf(stderr, " -q --skip-label " 804 "don't print label contents\n"); 805 (void) fprintf(stderr, " -t --txg=INTEGER " 806 "highest txg to use when searching for uberblocks\n"); 807 (void) fprintf(stderr, " -T --brt-stats " 808 "BRT statistics\n"); 809 (void) fprintf(stderr, " -u --uberblock " 810 "uberblock\n"); 811 (void) fprintf(stderr, " -U --cachefile=PATH " 812 "use alternate cachefile\n"); 813 (void) fprintf(stderr, " -V --verbatim " 814 "do verbatim import\n"); 815 (void) fprintf(stderr, " -x --dump-blocks=PATH " 816 "dump all read blocks into specified directory\n"); 817 (void) fprintf(stderr, " -X --extreme-rewind " 818 "attempt extreme rewind (does not work with dataset)\n"); 819 (void) fprintf(stderr, " -Y --all-reconstruction " 820 "attempt all reconstruction combinations for split blocks\n"); 821 (void) fprintf(stderr, " -Z --zstd-headers " 822 "show ZSTD headers \n"); 823 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 824 "to make only that option verbose\n"); 825 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 826 zdb_exit(1); 827} 828 829static void 830dump_debug_buffer(void) 831{ 832 ssize_t ret __attribute__((unused)); 833 834 if (!dump_opt['G']) 835 return; 836 /* 837 * We use write() instead of printf() so that this function 838 * is safe to call from a signal handler. 839 */ 840 ret = write(STDERR_FILENO, "\n", 1); 841 zfs_dbgmsg_print(STDERR_FILENO, "zdb"); 842} 843 844static void sig_handler(int signo) 845{ 846 struct sigaction action; 847 848 libspl_backtrace(STDERR_FILENO); 849 dump_debug_buffer(); 850 851 /* 852 * Restore default action and re-raise signal so SIGSEGV and 853 * SIGABRT can trigger a core dump. 854 */ 855 action.sa_handler = SIG_DFL; 856 sigemptyset(&action.sa_mask); 857 action.sa_flags = 0; 858 (void) sigaction(signo, &action, NULL); 859 raise(signo); 860} 861 862/* 863 * Called for usage errors that are discovered after a call to spa_open(), 864 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 865 */ 866 867static void 868fatal(const char *fmt, ...) 869{ 870 va_list ap; 871 872 va_start(ap, fmt); 873 (void) fprintf(stderr, "%s: ", cmdname); 874 (void) vfprintf(stderr, fmt, ap); 875 va_end(ap); 876 (void) fprintf(stderr, "\n"); 877 878 dump_debug_buffer(); 879 880 zdb_exit(1); 881} 882 883static void 884dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 885{ 886 (void) size; 887 nvlist_t *nv; 888 size_t nvsize = *(uint64_t *)data; 889 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 890 891 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 892 893 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 894 895 umem_free(packed, nvsize); 896 897 dump_nvlist(nv, 8); 898 899 nvlist_free(nv); 900} 901 902static void 903dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 904{ 905 (void) os, (void) object, (void) size; 906 spa_history_phys_t *shp = data; 907 908 if (shp == NULL) 909 return; 910 911 (void) printf("\t\tpool_create_len = %llu\n", 912 (u_longlong_t)shp->sh_pool_create_len); 913 (void) printf("\t\tphys_max_off = %llu\n", 914 (u_longlong_t)shp->sh_phys_max_off); 915 (void) printf("\t\tbof = %llu\n", 916 (u_longlong_t)shp->sh_bof); 917 (void) printf("\t\teof = %llu\n", 918 (u_longlong_t)shp->sh_eof); 919 (void) printf("\t\trecords_lost = %llu\n", 920 (u_longlong_t)shp->sh_records_lost); 921} 922 923static void 924zdb_nicenum(uint64_t num, char *buf, size_t buflen) 925{ 926 if (dump_opt['P']) 927 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 928 else 929 nicenum(num, buf, buflen); 930} 931 932static void 933zdb_nicebytes(uint64_t bytes, char *buf, size_t buflen) 934{ 935 if (dump_opt['P']) 936 (void) snprintf(buf, buflen, "%llu", (longlong_t)bytes); 937 else 938 zfs_nicebytes(bytes, buf, buflen); 939} 940 941static const char histo_stars[] = "****************************************"; 942static const uint64_t histo_width = sizeof (histo_stars) - 1; 943 944static void 945dump_histogram(const uint64_t *histo, int size, int offset) 946{ 947 int i; 948 int minidx = size - 1; 949 int maxidx = 0; 950 uint64_t max = 0; 951 952 for (i = 0; i < size; i++) { 953 if (histo[i] == 0) 954 continue; 955 if (histo[i] > max) 956 max = histo[i]; 957 if (i > maxidx) 958 maxidx = i; 959 if (i < minidx) 960 minidx = i; 961 } 962 963 if (max < histo_width) 964 max = histo_width; 965 966 for (i = minidx; i <= maxidx; i++) { 967 (void) printf("\t\t\t%3u: %6llu %s\n", 968 i + offset, (u_longlong_t)histo[i], 969 &histo_stars[(max - histo[i]) * histo_width / max]); 970 } 971} 972 973static void 974dump_zap_stats(objset_t *os, uint64_t object) 975{ 976 int error; 977 zap_stats_t zs; 978 979 error = zap_get_stats(os, object, &zs); 980 if (error) 981 return; 982 983 if (zs.zs_ptrtbl_len == 0) { 984 ASSERT(zs.zs_num_blocks == 1); 985 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 986 (u_longlong_t)zs.zs_blocksize, 987 (u_longlong_t)zs.zs_num_entries); 988 return; 989 } 990 991 (void) printf("\tFat ZAP stats:\n"); 992 993 (void) printf("\t\tPointer table:\n"); 994 (void) printf("\t\t\t%llu elements\n", 995 (u_longlong_t)zs.zs_ptrtbl_len); 996 (void) printf("\t\t\tzt_blk: %llu\n", 997 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 998 (void) printf("\t\t\tzt_numblks: %llu\n", 999 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 1000 (void) printf("\t\t\tzt_shift: %llu\n", 1001 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 1002 (void) printf("\t\t\tzt_blks_copied: %llu\n", 1003 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 1004 (void) printf("\t\t\tzt_nextblk: %llu\n", 1005 (u_longlong_t)zs.zs_ptrtbl_nextblk); 1006 1007 (void) printf("\t\tZAP entries: %llu\n", 1008 (u_longlong_t)zs.zs_num_entries); 1009 (void) printf("\t\tLeaf blocks: %llu\n", 1010 (u_longlong_t)zs.zs_num_leafs); 1011 (void) printf("\t\tTotal blocks: %llu\n", 1012 (u_longlong_t)zs.zs_num_blocks); 1013 (void) printf("\t\tzap_block_type: 0x%llx\n", 1014 (u_longlong_t)zs.zs_block_type); 1015 (void) printf("\t\tzap_magic: 0x%llx\n", 1016 (u_longlong_t)zs.zs_magic); 1017 (void) printf("\t\tzap_salt: 0x%llx\n", 1018 (u_longlong_t)zs.zs_salt); 1019 1020 (void) printf("\t\tLeafs with 2^n pointers:\n"); 1021 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 1022 1023 (void) printf("\t\tBlocks with n*5 entries:\n"); 1024 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 1025 1026 (void) printf("\t\tBlocks n/10 full:\n"); 1027 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 1028 1029 (void) printf("\t\tEntries with n chunks:\n"); 1030 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 1031 1032 (void) printf("\t\tBuckets with n entries:\n"); 1033 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 1034} 1035 1036static void 1037dump_none(objset_t *os, uint64_t object, void *data, size_t size) 1038{ 1039 (void) os, (void) object, (void) data, (void) size; 1040} 1041 1042static void 1043dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 1044{ 1045 (void) os, (void) object, (void) data, (void) size; 1046 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 1047} 1048 1049static void 1050dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 1051{ 1052 (void) os, (void) object, (void) data, (void) size; 1053} 1054 1055static void 1056dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 1057{ 1058 uint64_t *arr; 1059 uint64_t oursize; 1060 if (dump_opt['d'] < 6) 1061 return; 1062 1063 if (data == NULL) { 1064 dmu_object_info_t doi; 1065 1066 VERIFY0(dmu_object_info(os, object, &doi)); 1067 size = doi.doi_max_offset; 1068 /* 1069 * We cap the size at 1 mebibyte here to prevent 1070 * allocation failures and nigh-infinite printing if the 1071 * object is extremely large. 1072 */ 1073 oursize = MIN(size, 1 << 20); 1074 arr = kmem_alloc(oursize, KM_SLEEP); 1075 1076 int err = dmu_read(os, object, 0, oursize, arr, 0); 1077 if (err != 0) { 1078 (void) printf("got error %u from dmu_read\n", err); 1079 kmem_free(arr, oursize); 1080 return; 1081 } 1082 } else { 1083 /* 1084 * Even though the allocation is already done in this code path, 1085 * we still cap the size to prevent excessive printing. 1086 */ 1087 oursize = MIN(size, 1 << 20); 1088 arr = data; 1089 } 1090 1091 if (size == 0) { 1092 if (data == NULL) 1093 kmem_free(arr, oursize); 1094 (void) printf("\t\t[]\n"); 1095 return; 1096 } 1097 1098 (void) printf("\t\t[%0llx", (u_longlong_t)arr[0]); 1099 for (size_t i = 1; i * sizeof (uint64_t) < oursize; i++) { 1100 if (i % 4 != 0) 1101 (void) printf(", %0llx", (u_longlong_t)arr[i]); 1102 else 1103 (void) printf(",\n\t\t%0llx", (u_longlong_t)arr[i]); 1104 } 1105 if (oursize != size) 1106 (void) printf(", ... "); 1107 (void) printf("]\n"); 1108 1109 if (data == NULL) 1110 kmem_free(arr, oursize); 1111} 1112 1113static void 1114dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 1115{ 1116 (void) data, (void) size; 1117 zap_cursor_t zc; 1118 zap_attribute_t attr; 1119 void *prop; 1120 unsigned i; 1121 1122 dump_zap_stats(os, object); 1123 (void) printf("\n"); 1124 1125 for (zap_cursor_init(&zc, os, object); 1126 zap_cursor_retrieve(&zc, &attr) == 0; 1127 zap_cursor_advance(&zc)) { 1128 (void) printf("\t\t%s = ", attr.za_name); 1129 if (attr.za_num_integers == 0) { 1130 (void) printf("\n"); 1131 continue; 1132 } 1133 prop = umem_zalloc(attr.za_num_integers * 1134 attr.za_integer_length, UMEM_NOFAIL); 1135 (void) zap_lookup(os, object, attr.za_name, 1136 attr.za_integer_length, attr.za_num_integers, prop); 1137 if (attr.za_integer_length == 1) { 1138 if (strcmp(attr.za_name, 1139 DSL_CRYPTO_KEY_MASTER_KEY) == 0 || 1140 strcmp(attr.za_name, 1141 DSL_CRYPTO_KEY_HMAC_KEY) == 0 || 1142 strcmp(attr.za_name, DSL_CRYPTO_KEY_IV) == 0 || 1143 strcmp(attr.za_name, DSL_CRYPTO_KEY_MAC) == 0 || 1144 strcmp(attr.za_name, DMU_POOL_CHECKSUM_SALT) == 0) { 1145 uint8_t *u8 = prop; 1146 1147 for (i = 0; i < attr.za_num_integers; i++) { 1148 (void) printf("%02x", u8[i]); 1149 } 1150 } else { 1151 (void) printf("%s", (char *)prop); 1152 } 1153 } else { 1154 for (i = 0; i < attr.za_num_integers; i++) { 1155 switch (attr.za_integer_length) { 1156 case 2: 1157 (void) printf("%u ", 1158 ((uint16_t *)prop)[i]); 1159 break; 1160 case 4: 1161 (void) printf("%u ", 1162 ((uint32_t *)prop)[i]); 1163 break; 1164 case 8: 1165 (void) printf("%lld ", 1166 (u_longlong_t)((int64_t *)prop)[i]); 1167 break; 1168 } 1169 } 1170 } 1171 (void) printf("\n"); 1172 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 1173 } 1174 zap_cursor_fini(&zc); 1175} 1176 1177static void 1178dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 1179{ 1180 bpobj_phys_t *bpop = data; 1181 uint64_t i; 1182 char bytes[32], comp[32], uncomp[32]; 1183 1184 /* make sure the output won't get truncated */ 1185 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 1186 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 1187 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 1188 1189 if (bpop == NULL) 1190 return; 1191 1192 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 1193 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 1194 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 1195 1196 (void) printf("\t\tnum_blkptrs = %llu\n", 1197 (u_longlong_t)bpop->bpo_num_blkptrs); 1198 (void) printf("\t\tbytes = %s\n", bytes); 1199 if (size >= BPOBJ_SIZE_V1) { 1200 (void) printf("\t\tcomp = %s\n", comp); 1201 (void) printf("\t\tuncomp = %s\n", uncomp); 1202 } 1203 if (size >= BPOBJ_SIZE_V2) { 1204 (void) printf("\t\tsubobjs = %llu\n", 1205 (u_longlong_t)bpop->bpo_subobjs); 1206 (void) printf("\t\tnum_subobjs = %llu\n", 1207 (u_longlong_t)bpop->bpo_num_subobjs); 1208 } 1209 if (size >= sizeof (*bpop)) { 1210 (void) printf("\t\tnum_freed = %llu\n", 1211 (u_longlong_t)bpop->bpo_num_freed); 1212 } 1213 1214 if (dump_opt['d'] < 5) 1215 return; 1216 1217 for (i = 0; i < bpop->bpo_num_blkptrs; i++) { 1218 char blkbuf[BP_SPRINTF_LEN]; 1219 blkptr_t bp; 1220 1221 int err = dmu_read(os, object, 1222 i * sizeof (bp), sizeof (bp), &bp, 0); 1223 if (err != 0) { 1224 (void) printf("got error %u from dmu_read\n", err); 1225 break; 1226 } 1227 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp, 1228 BP_GET_FREE(&bp)); 1229 (void) printf("\t%s\n", blkbuf); 1230 } 1231} 1232 1233static void 1234dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 1235{ 1236 (void) data, (void) size; 1237 dmu_object_info_t doi; 1238 int64_t i; 1239 1240 VERIFY0(dmu_object_info(os, object, &doi)); 1241 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 1242 1243 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 1244 if (err != 0) { 1245 (void) printf("got error %u from dmu_read\n", err); 1246 kmem_free(subobjs, doi.doi_max_offset); 1247 return; 1248 } 1249 1250 int64_t last_nonzero = -1; 1251 for (i = 0; i < doi.doi_max_offset / 8; i++) { 1252 if (subobjs[i] != 0) 1253 last_nonzero = i; 1254 } 1255 1256 for (i = 0; i <= last_nonzero; i++) { 1257 (void) printf("\t%llu\n", (u_longlong_t)subobjs[i]); 1258 } 1259 kmem_free(subobjs, doi.doi_max_offset); 1260} 1261 1262static void 1263dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 1264{ 1265 (void) data, (void) size; 1266 dump_zap_stats(os, object); 1267 /* contents are printed elsewhere, properly decoded */ 1268} 1269 1270static void 1271dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 1272{ 1273 (void) data, (void) size; 1274 zap_cursor_t zc; 1275 zap_attribute_t attr; 1276 1277 dump_zap_stats(os, object); 1278 (void) printf("\n"); 1279 1280 for (zap_cursor_init(&zc, os, object); 1281 zap_cursor_retrieve(&zc, &attr) == 0; 1282 zap_cursor_advance(&zc)) { 1283 (void) printf("\t\t%s = ", attr.za_name); 1284 if (attr.za_num_integers == 0) { 1285 (void) printf("\n"); 1286 continue; 1287 } 1288 (void) printf(" %llx : [%d:%d:%d]\n", 1289 (u_longlong_t)attr.za_first_integer, 1290 (int)ATTR_LENGTH(attr.za_first_integer), 1291 (int)ATTR_BSWAP(attr.za_first_integer), 1292 (int)ATTR_NUM(attr.za_first_integer)); 1293 } 1294 zap_cursor_fini(&zc); 1295} 1296 1297static void 1298dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 1299{ 1300 (void) data, (void) size; 1301 zap_cursor_t zc; 1302 zap_attribute_t attr; 1303 uint16_t *layout_attrs; 1304 unsigned i; 1305 1306 dump_zap_stats(os, object); 1307 (void) printf("\n"); 1308 1309 for (zap_cursor_init(&zc, os, object); 1310 zap_cursor_retrieve(&zc, &attr) == 0; 1311 zap_cursor_advance(&zc)) { 1312 (void) printf("\t\t%s = [", attr.za_name); 1313 if (attr.za_num_integers == 0) { 1314 (void) printf("\n"); 1315 continue; 1316 } 1317 1318 VERIFY(attr.za_integer_length == 2); 1319 layout_attrs = umem_zalloc(attr.za_num_integers * 1320 attr.za_integer_length, UMEM_NOFAIL); 1321 1322 VERIFY(zap_lookup(os, object, attr.za_name, 1323 attr.za_integer_length, 1324 attr.za_num_integers, layout_attrs) == 0); 1325 1326 for (i = 0; i != attr.za_num_integers; i++) 1327 (void) printf(" %d ", (int)layout_attrs[i]); 1328 (void) printf("]\n"); 1329 umem_free(layout_attrs, 1330 attr.za_num_integers * attr.za_integer_length); 1331 } 1332 zap_cursor_fini(&zc); 1333} 1334 1335static void 1336dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 1337{ 1338 (void) data, (void) size; 1339 zap_cursor_t zc; 1340 zap_attribute_t attr; 1341 const char *typenames[] = { 1342 /* 0 */ "not specified", 1343 /* 1 */ "FIFO", 1344 /* 2 */ "Character Device", 1345 /* 3 */ "3 (invalid)", 1346 /* 4 */ "Directory", 1347 /* 5 */ "5 (invalid)", 1348 /* 6 */ "Block Device", 1349 /* 7 */ "7 (invalid)", 1350 /* 8 */ "Regular File", 1351 /* 9 */ "9 (invalid)", 1352 /* 10 */ "Symbolic Link", 1353 /* 11 */ "11 (invalid)", 1354 /* 12 */ "Socket", 1355 /* 13 */ "Door", 1356 /* 14 */ "Event Port", 1357 /* 15 */ "15 (invalid)", 1358 }; 1359 1360 dump_zap_stats(os, object); 1361 (void) printf("\n"); 1362 1363 for (zap_cursor_init(&zc, os, object); 1364 zap_cursor_retrieve(&zc, &attr) == 0; 1365 zap_cursor_advance(&zc)) { 1366 (void) printf("\t\t%s = %lld (type: %s)\n", 1367 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 1368 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 1369 } 1370 zap_cursor_fini(&zc); 1371} 1372 1373static int 1374get_dtl_refcount(vdev_t *vd) 1375{ 1376 int refcount = 0; 1377 1378 if (vd->vdev_ops->vdev_op_leaf) { 1379 space_map_t *sm = vd->vdev_dtl_sm; 1380 1381 if (sm != NULL && 1382 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 1383 return (1); 1384 return (0); 1385 } 1386 1387 for (unsigned c = 0; c < vd->vdev_children; c++) 1388 refcount += get_dtl_refcount(vd->vdev_child[c]); 1389 return (refcount); 1390} 1391 1392static int 1393get_metaslab_refcount(vdev_t *vd) 1394{ 1395 int refcount = 0; 1396 1397 if (vd->vdev_top == vd) { 1398 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 1399 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 1400 1401 if (sm != NULL && 1402 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 1403 refcount++; 1404 } 1405 } 1406 for (unsigned c = 0; c < vd->vdev_children; c++) 1407 refcount += get_metaslab_refcount(vd->vdev_child[c]); 1408 1409 return (refcount); 1410} 1411 1412static int 1413get_obsolete_refcount(vdev_t *vd) 1414{ 1415 uint64_t obsolete_sm_object; 1416 int refcount = 0; 1417 1418 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 1419 if (vd->vdev_top == vd && obsolete_sm_object != 0) { 1420 dmu_object_info_t doi; 1421 VERIFY0(dmu_object_info(vd->vdev_spa->spa_meta_objset, 1422 obsolete_sm_object, &doi)); 1423 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 1424 refcount++; 1425 } 1426 } else { 1427 ASSERT3P(vd->vdev_obsolete_sm, ==, NULL); 1428 ASSERT3U(obsolete_sm_object, ==, 0); 1429 } 1430 for (unsigned c = 0; c < vd->vdev_children; c++) { 1431 refcount += get_obsolete_refcount(vd->vdev_child[c]); 1432 } 1433 1434 return (refcount); 1435} 1436 1437static int 1438get_prev_obsolete_spacemap_refcount(spa_t *spa) 1439{ 1440 uint64_t prev_obj = 1441 spa->spa_condensing_indirect_phys.scip_prev_obsolete_sm_object; 1442 if (prev_obj != 0) { 1443 dmu_object_info_t doi; 1444 VERIFY0(dmu_object_info(spa->spa_meta_objset, prev_obj, &doi)); 1445 if (doi.doi_bonus_size == sizeof (space_map_phys_t)) { 1446 return (1); 1447 } 1448 } 1449 return (0); 1450} 1451 1452static int 1453get_checkpoint_refcount(vdev_t *vd) 1454{ 1455 int refcount = 0; 1456 1457 if (vd->vdev_top == vd && vd->vdev_top_zap != 0 && 1458 zap_contains(spa_meta_objset(vd->vdev_spa), 1459 vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) == 0) 1460 refcount++; 1461 1462 for (uint64_t c = 0; c < vd->vdev_children; c++) 1463 refcount += get_checkpoint_refcount(vd->vdev_child[c]); 1464 1465 return (refcount); 1466} 1467 1468static int 1469get_log_spacemap_refcount(spa_t *spa) 1470{ 1471 return (avl_numnodes(&spa->spa_sm_logs_by_txg)); 1472} 1473 1474static int 1475verify_spacemap_refcounts(spa_t *spa) 1476{ 1477 uint64_t expected_refcount = 0; 1478 uint64_t actual_refcount; 1479 1480 (void) feature_get_refcount(spa, 1481 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 1482 &expected_refcount); 1483 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 1484 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 1485 actual_refcount += get_obsolete_refcount(spa->spa_root_vdev); 1486 actual_refcount += get_prev_obsolete_spacemap_refcount(spa); 1487 actual_refcount += get_checkpoint_refcount(spa->spa_root_vdev); 1488 actual_refcount += get_log_spacemap_refcount(spa); 1489 1490 if (expected_refcount != actual_refcount) { 1491 (void) printf("space map refcount mismatch: expected %lld != " 1492 "actual %lld\n", 1493 (longlong_t)expected_refcount, 1494 (longlong_t)actual_refcount); 1495 return (2); 1496 } 1497 return (0); 1498} 1499 1500static void 1501dump_spacemap(objset_t *os, space_map_t *sm) 1502{ 1503 const char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1504 "INVALID", "INVALID", "INVALID", "INVALID" }; 1505 1506 if (sm == NULL) 1507 return; 1508 1509 (void) printf("space map object %llu:\n", 1510 (longlong_t)sm->sm_object); 1511 (void) printf(" smp_length = 0x%llx\n", 1512 (longlong_t)sm->sm_phys->smp_length); 1513 (void) printf(" smp_alloc = 0x%llx\n", 1514 (longlong_t)sm->sm_phys->smp_alloc); 1515 1516 if (dump_opt['d'] < 6 && dump_opt['m'] < 4) 1517 return; 1518 1519 /* 1520 * Print out the freelist entries in both encoded and decoded form. 1521 */ 1522 uint8_t mapshift = sm->sm_shift; 1523 int64_t alloc = 0; 1524 uint64_t word, entry_id = 0; 1525 for (uint64_t offset = 0; offset < space_map_length(sm); 1526 offset += sizeof (word)) { 1527 1528 VERIFY0(dmu_read(os, space_map_object(sm), offset, 1529 sizeof (word), &word, DMU_READ_PREFETCH)); 1530 1531 if (sm_entry_is_debug(word)) { 1532 uint64_t de_txg = SM_DEBUG_TXG_DECODE(word); 1533 uint64_t de_sync_pass = SM_DEBUG_SYNCPASS_DECODE(word); 1534 if (de_txg == 0) { 1535 (void) printf( 1536 "\t [%6llu] PADDING\n", 1537 (u_longlong_t)entry_id); 1538 } else { 1539 (void) printf( 1540 "\t [%6llu] %s: txg %llu pass %llu\n", 1541 (u_longlong_t)entry_id, 1542 ddata[SM_DEBUG_ACTION_DECODE(word)], 1543 (u_longlong_t)de_txg, 1544 (u_longlong_t)de_sync_pass); 1545 } 1546 entry_id++; 1547 continue; 1548 } 1549 1550 uint8_t words; 1551 char entry_type; 1552 uint64_t entry_off, entry_run, entry_vdev = SM_NO_VDEVID; 1553 1554 if (sm_entry_is_single_word(word)) { 1555 entry_type = (SM_TYPE_DECODE(word) == SM_ALLOC) ? 1556 'A' : 'F'; 1557 entry_off = (SM_OFFSET_DECODE(word) << mapshift) + 1558 sm->sm_start; 1559 entry_run = SM_RUN_DECODE(word) << mapshift; 1560 words = 1; 1561 } else { 1562 /* it is a two-word entry so we read another word */ 1563 ASSERT(sm_entry_is_double_word(word)); 1564 1565 uint64_t extra_word; 1566 offset += sizeof (extra_word); 1567 VERIFY0(dmu_read(os, space_map_object(sm), offset, 1568 sizeof (extra_word), &extra_word, 1569 DMU_READ_PREFETCH)); 1570 1571 ASSERT3U(offset, <=, space_map_length(sm)); 1572 1573 entry_run = SM2_RUN_DECODE(word) << mapshift; 1574 entry_vdev = SM2_VDEV_DECODE(word); 1575 entry_type = (SM2_TYPE_DECODE(extra_word) == SM_ALLOC) ? 1576 'A' : 'F'; 1577 entry_off = (SM2_OFFSET_DECODE(extra_word) << 1578 mapshift) + sm->sm_start; 1579 words = 2; 1580 } 1581 1582 (void) printf("\t [%6llu] %c range:" 1583 " %010llx-%010llx size: %06llx vdev: %06llu words: %u\n", 1584 (u_longlong_t)entry_id, 1585 entry_type, (u_longlong_t)entry_off, 1586 (u_longlong_t)(entry_off + entry_run), 1587 (u_longlong_t)entry_run, 1588 (u_longlong_t)entry_vdev, words); 1589 1590 if (entry_type == 'A') 1591 alloc += entry_run; 1592 else 1593 alloc -= entry_run; 1594 entry_id++; 1595 } 1596 if (alloc != space_map_allocated(sm)) { 1597 (void) printf("space_map_object alloc (%lld) INCONSISTENT " 1598 "with space map summary (%lld)\n", 1599 (longlong_t)space_map_allocated(sm), (longlong_t)alloc); 1600 } 1601} 1602 1603static void 1604dump_metaslab_stats(metaslab_t *msp) 1605{ 1606 char maxbuf[32]; 1607 range_tree_t *rt = msp->ms_allocatable; 1608 zfs_btree_t *t = &msp->ms_allocatable_by_size; 1609 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 1610 1611 /* max sure nicenum has enough space */ 1612 _Static_assert(sizeof (maxbuf) >= NN_NUMBUF_SZ, "maxbuf truncated"); 1613 1614 zdb_nicenum(metaslab_largest_allocatable(msp), maxbuf, sizeof (maxbuf)); 1615 1616 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 1617 "segments", zfs_btree_numnodes(t), "maxsize", maxbuf, 1618 "freepct", free_pct); 1619 (void) printf("\tIn-memory histogram:\n"); 1620 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1621} 1622 1623static void 1624dump_metaslab(metaslab_t *msp) 1625{ 1626 vdev_t *vd = msp->ms_group->mg_vd; 1627 spa_t *spa = vd->vdev_spa; 1628 space_map_t *sm = msp->ms_sm; 1629 char freebuf[32]; 1630 1631 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 1632 sizeof (freebuf)); 1633 1634 (void) printf( 1635 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 1636 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 1637 (u_longlong_t)space_map_object(sm), freebuf); 1638 1639 if (dump_opt['m'] > 2 && !dump_opt['L']) { 1640 mutex_enter(&msp->ms_lock); 1641 VERIFY0(metaslab_load(msp)); 1642 range_tree_stat_verify(msp->ms_allocatable); 1643 dump_metaslab_stats(msp); 1644 metaslab_unload(msp); 1645 mutex_exit(&msp->ms_lock); 1646 } 1647 1648 if (dump_opt['m'] > 1 && sm != NULL && 1649 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 1650 /* 1651 * The space map histogram represents free space in chunks 1652 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 1653 */ 1654 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 1655 (u_longlong_t)msp->ms_fragmentation); 1656 dump_histogram(sm->sm_phys->smp_histogram, 1657 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 1658 } 1659 1660 if (vd->vdev_ops == &vdev_draid_ops) 1661 ASSERT3U(msp->ms_size, <=, 1ULL << vd->vdev_ms_shift); 1662 else 1663 ASSERT3U(msp->ms_size, ==, 1ULL << vd->vdev_ms_shift); 1664 1665 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 1666 1667 if (spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) { 1668 (void) printf("\tFlush data:\n\tunflushed txg=%llu\n\n", 1669 (u_longlong_t)metaslab_unflushed_txg(msp)); 1670 } 1671} 1672 1673static void 1674print_vdev_metaslab_header(vdev_t *vd) 1675{ 1676 vdev_alloc_bias_t alloc_bias = vd->vdev_alloc_bias; 1677 const char *bias_str = ""; 1678 if (alloc_bias == VDEV_BIAS_LOG || vd->vdev_islog) { 1679 bias_str = VDEV_ALLOC_BIAS_LOG; 1680 } else if (alloc_bias == VDEV_BIAS_SPECIAL) { 1681 bias_str = VDEV_ALLOC_BIAS_SPECIAL; 1682 } else if (alloc_bias == VDEV_BIAS_DEDUP) { 1683 bias_str = VDEV_ALLOC_BIAS_DEDUP; 1684 } 1685 1686 uint64_t ms_flush_data_obj = 0; 1687 if (vd->vdev_top_zap != 0) { 1688 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 1689 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 1690 sizeof (uint64_t), 1, &ms_flush_data_obj); 1691 if (error != ENOENT) { 1692 ASSERT0(error); 1693 } 1694 } 1695 1696 (void) printf("\tvdev %10llu %s", 1697 (u_longlong_t)vd->vdev_id, bias_str); 1698 1699 if (ms_flush_data_obj != 0) { 1700 (void) printf(" ms_unflushed_phys object %llu", 1701 (u_longlong_t)ms_flush_data_obj); 1702 } 1703 1704 (void) printf("\n\t%-10s%5llu %-19s %-15s %-12s\n", 1705 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 1706 "offset", "spacemap", "free"); 1707 (void) printf("\t%15s %19s %15s %12s\n", 1708 "---------------", "-------------------", 1709 "---------------", "------------"); 1710} 1711 1712static void 1713dump_metaslab_groups(spa_t *spa, boolean_t show_special) 1714{ 1715 vdev_t *rvd = spa->spa_root_vdev; 1716 metaslab_class_t *mc = spa_normal_class(spa); 1717 metaslab_class_t *smc = spa_special_class(spa); 1718 uint64_t fragmentation; 1719 1720 metaslab_class_histogram_verify(mc); 1721 1722 for (unsigned c = 0; c < rvd->vdev_children; c++) { 1723 vdev_t *tvd = rvd->vdev_child[c]; 1724 metaslab_group_t *mg = tvd->vdev_mg; 1725 1726 if (mg == NULL || (mg->mg_class != mc && 1727 (!show_special || mg->mg_class != smc))) 1728 continue; 1729 1730 metaslab_group_histogram_verify(mg); 1731 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 1732 1733 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 1734 "fragmentation", 1735 (u_longlong_t)tvd->vdev_id, 1736 (u_longlong_t)tvd->vdev_ms_count); 1737 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 1738 (void) printf("%3s\n", "-"); 1739 } else { 1740 (void) printf("%3llu%%\n", 1741 (u_longlong_t)mg->mg_fragmentation); 1742 } 1743 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1744 } 1745 1746 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 1747 fragmentation = metaslab_class_fragmentation(mc); 1748 if (fragmentation == ZFS_FRAG_INVALID) 1749 (void) printf("\t%3s\n", "-"); 1750 else 1751 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 1752 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 1753} 1754 1755static void 1756print_vdev_indirect(vdev_t *vd) 1757{ 1758 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 1759 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 1760 vdev_indirect_births_t *vib = vd->vdev_indirect_births; 1761 1762 if (vim == NULL) { 1763 ASSERT3P(vib, ==, NULL); 1764 return; 1765 } 1766 1767 ASSERT3U(vdev_indirect_mapping_object(vim), ==, 1768 vic->vic_mapping_object); 1769 ASSERT3U(vdev_indirect_births_object(vib), ==, 1770 vic->vic_births_object); 1771 1772 (void) printf("indirect births obj %llu:\n", 1773 (longlong_t)vic->vic_births_object); 1774 (void) printf(" vib_count = %llu\n", 1775 (longlong_t)vdev_indirect_births_count(vib)); 1776 for (uint64_t i = 0; i < vdev_indirect_births_count(vib); i++) { 1777 vdev_indirect_birth_entry_phys_t *cur_vibe = 1778 &vib->vib_entries[i]; 1779 (void) printf("\toffset %llx -> txg %llu\n", 1780 (longlong_t)cur_vibe->vibe_offset, 1781 (longlong_t)cur_vibe->vibe_phys_birth_txg); 1782 } 1783 (void) printf("\n"); 1784 1785 (void) printf("indirect mapping obj %llu:\n", 1786 (longlong_t)vic->vic_mapping_object); 1787 (void) printf(" vim_max_offset = 0x%llx\n", 1788 (longlong_t)vdev_indirect_mapping_max_offset(vim)); 1789 (void) printf(" vim_bytes_mapped = 0x%llx\n", 1790 (longlong_t)vdev_indirect_mapping_bytes_mapped(vim)); 1791 (void) printf(" vim_count = %llu\n", 1792 (longlong_t)vdev_indirect_mapping_num_entries(vim)); 1793 1794 if (dump_opt['d'] <= 5 && dump_opt['m'] <= 3) 1795 return; 1796 1797 uint32_t *counts = vdev_indirect_mapping_load_obsolete_counts(vim); 1798 1799 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 1800 vdev_indirect_mapping_entry_phys_t *vimep = 1801 &vim->vim_entries[i]; 1802 (void) printf("\t<%llx:%llx:%llx> -> " 1803 "<%llx:%llx:%llx> (%x obsolete)\n", 1804 (longlong_t)vd->vdev_id, 1805 (longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 1806 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1807 (longlong_t)DVA_GET_VDEV(&vimep->vimep_dst), 1808 (longlong_t)DVA_GET_OFFSET(&vimep->vimep_dst), 1809 (longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 1810 counts[i]); 1811 } 1812 (void) printf("\n"); 1813 1814 uint64_t obsolete_sm_object; 1815 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 1816 if (obsolete_sm_object != 0) { 1817 objset_t *mos = vd->vdev_spa->spa_meta_objset; 1818 (void) printf("obsolete space map object %llu:\n", 1819 (u_longlong_t)obsolete_sm_object); 1820 ASSERT(vd->vdev_obsolete_sm != NULL); 1821 ASSERT3U(space_map_object(vd->vdev_obsolete_sm), ==, 1822 obsolete_sm_object); 1823 dump_spacemap(mos, vd->vdev_obsolete_sm); 1824 (void) printf("\n"); 1825 } 1826} 1827 1828static void 1829dump_metaslabs(spa_t *spa) 1830{ 1831 vdev_t *vd, *rvd = spa->spa_root_vdev; 1832 uint64_t m, c = 0, children = rvd->vdev_children; 1833 1834 (void) printf("\nMetaslabs:\n"); 1835 1836 if (!dump_opt['d'] && zopt_metaslab_args > 0) { 1837 c = zopt_metaslab[0]; 1838 1839 if (c >= children) 1840 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 1841 1842 if (zopt_metaslab_args > 1) { 1843 vd = rvd->vdev_child[c]; 1844 print_vdev_metaslab_header(vd); 1845 1846 for (m = 1; m < zopt_metaslab_args; m++) { 1847 if (zopt_metaslab[m] < vd->vdev_ms_count) 1848 dump_metaslab( 1849 vd->vdev_ms[zopt_metaslab[m]]); 1850 else 1851 (void) fprintf(stderr, "bad metaslab " 1852 "number %llu\n", 1853 (u_longlong_t)zopt_metaslab[m]); 1854 } 1855 (void) printf("\n"); 1856 return; 1857 } 1858 children = c + 1; 1859 } 1860 for (; c < children; c++) { 1861 vd = rvd->vdev_child[c]; 1862 print_vdev_metaslab_header(vd); 1863 1864 print_vdev_indirect(vd); 1865 1866 for (m = 0; m < vd->vdev_ms_count; m++) 1867 dump_metaslab(vd->vdev_ms[m]); 1868 (void) printf("\n"); 1869 } 1870} 1871 1872static void 1873dump_log_spacemaps(spa_t *spa) 1874{ 1875 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 1876 return; 1877 1878 (void) printf("\nLog Space Maps in Pool:\n"); 1879 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 1880 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) { 1881 space_map_t *sm = NULL; 1882 VERIFY0(space_map_open(&sm, spa_meta_objset(spa), 1883 sls->sls_sm_obj, 0, UINT64_MAX, SPA_MINBLOCKSHIFT)); 1884 1885 (void) printf("Log Spacemap object %llu txg %llu\n", 1886 (u_longlong_t)sls->sls_sm_obj, (u_longlong_t)sls->sls_txg); 1887 dump_spacemap(spa->spa_meta_objset, sm); 1888 space_map_close(sm); 1889 } 1890 (void) printf("\n"); 1891} 1892 1893static void 1894dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 1895{ 1896 const ddt_phys_t *ddp = dde->dde_phys; 1897 const ddt_key_t *ddk = &dde->dde_key; 1898 const char *types[4] = { "ditto", "single", "double", "triple" }; 1899 char blkbuf[BP_SPRINTF_LEN]; 1900 blkptr_t blk; 1901 int p; 1902 1903 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 1904 if (ddp->ddp_phys_birth == 0) 1905 continue; 1906 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 1907 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 1908 (void) printf("index %llx refcnt %llu %s %s\n", 1909 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 1910 types[p], blkbuf); 1911 } 1912} 1913 1914static void 1915dump_dedup_ratio(const ddt_stat_t *dds) 1916{ 1917 double rL, rP, rD, D, dedup, compress, copies; 1918 1919 if (dds->dds_blocks == 0) 1920 return; 1921 1922 rL = (double)dds->dds_ref_lsize; 1923 rP = (double)dds->dds_ref_psize; 1924 rD = (double)dds->dds_ref_dsize; 1925 D = (double)dds->dds_dsize; 1926 1927 dedup = rD / D; 1928 compress = rL / rP; 1929 copies = rD / rP; 1930 1931 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 1932 "dedup * compress / copies = %.2f\n\n", 1933 dedup, compress, copies, dedup * compress / copies); 1934} 1935 1936static void 1937dump_ddt(ddt_t *ddt, ddt_type_t type, ddt_class_t class) 1938{ 1939 char name[DDT_NAMELEN]; 1940 ddt_entry_t dde; 1941 uint64_t walk = 0; 1942 dmu_object_info_t doi; 1943 uint64_t count, dspace, mspace; 1944 int error; 1945 1946 error = ddt_object_info(ddt, type, class, &doi); 1947 1948 if (error == ENOENT) 1949 return; 1950 ASSERT(error == 0); 1951 1952 error = ddt_object_count(ddt, type, class, &count); 1953 ASSERT(error == 0); 1954 if (count == 0) 1955 return; 1956 1957 dspace = doi.doi_physical_blocks_512 << 9; 1958 mspace = doi.doi_fill_count * doi.doi_data_block_size; 1959 1960 ddt_object_name(ddt, type, class, name); 1961 1962 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 1963 name, 1964 (u_longlong_t)count, 1965 (u_longlong_t)(dspace / count), 1966 (u_longlong_t)(mspace / count)); 1967 1968 if (dump_opt['D'] < 3) 1969 return; 1970 1971 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 1972 1973 if (dump_opt['D'] < 4) 1974 return; 1975 1976 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 1977 return; 1978 1979 (void) printf("%s contents:\n\n", name); 1980 1981 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 1982 dump_dde(ddt, &dde, walk); 1983 1984 ASSERT3U(error, ==, ENOENT); 1985 1986 (void) printf("\n"); 1987} 1988 1989static void 1990dump_all_ddts(spa_t *spa) 1991{ 1992 ddt_histogram_t ddh_total = {{{0}}}; 1993 ddt_stat_t dds_total = {0}; 1994 1995 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1996 ddt_t *ddt = spa->spa_ddt[c]; 1997 if (!ddt) 1998 continue; 1999 for (ddt_type_t type = 0; type < DDT_TYPES; type++) { 2000 for (ddt_class_t class = 0; class < DDT_CLASSES; 2001 class++) { 2002 dump_ddt(ddt, type, class); 2003 } 2004 } 2005 } 2006 2007 ddt_get_dedup_stats(spa, &dds_total); 2008 2009 if (dds_total.dds_blocks == 0) { 2010 (void) printf("All DDTs are empty\n"); 2011 return; 2012 } 2013 2014 (void) printf("\n"); 2015 2016 if (dump_opt['D'] > 1) { 2017 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 2018 ddt_get_dedup_histogram(spa, &ddh_total); 2019 zpool_dump_ddt(&dds_total, &ddh_total); 2020 } 2021 2022 dump_dedup_ratio(&dds_total); 2023} 2024 2025static void 2026dump_brt(spa_t *spa) 2027{ 2028 if (!spa_feature_is_enabled(spa, SPA_FEATURE_BLOCK_CLONING)) { 2029 printf("BRT: unsupported on this pool\n"); 2030 return; 2031 } 2032 2033 if (!spa_feature_is_active(spa, SPA_FEATURE_BLOCK_CLONING)) { 2034 printf("BRT: empty\n"); 2035 return; 2036 } 2037 2038 brt_t *brt = spa->spa_brt; 2039 VERIFY(brt); 2040 2041 char count[32], used[32], saved[32]; 2042 zdb_nicebytes(brt_get_used(spa), used, sizeof (used)); 2043 zdb_nicebytes(brt_get_saved(spa), saved, sizeof (saved)); 2044 uint64_t ratio = brt_get_ratio(spa); 2045 printf("BRT: used %s; saved %s; ratio %llu.%02llux\n", used, saved, 2046 (u_longlong_t)(ratio / 100), (u_longlong_t)(ratio % 100)); 2047 2048 if (dump_opt['T'] < 2) 2049 return; 2050 2051 for (uint64_t vdevid = 0; vdevid < brt->brt_nvdevs; vdevid++) { 2052 brt_vdev_t *brtvd = &brt->brt_vdevs[vdevid]; 2053 if (brtvd == NULL) 2054 continue; 2055 2056 if (!brtvd->bv_initiated) { 2057 printf("BRT: vdev %" PRIu64 ": empty\n", vdevid); 2058 continue; 2059 } 2060 2061 zdb_nicenum(brtvd->bv_totalcount, count, sizeof (count)); 2062 zdb_nicebytes(brtvd->bv_usedspace, used, sizeof (used)); 2063 zdb_nicebytes(brtvd->bv_savedspace, saved, sizeof (saved)); 2064 printf("BRT: vdev %" PRIu64 ": refcnt %s; used %s; saved %s\n", 2065 vdevid, count, used, saved); 2066 } 2067 2068 if (dump_opt['T'] < 3) 2069 return; 2070 2071 char dva[64]; 2072 printf("\n%-16s %-10s\n", "DVA", "REFCNT"); 2073 2074 for (uint64_t vdevid = 0; vdevid < brt->brt_nvdevs; vdevid++) { 2075 brt_vdev_t *brtvd = &brt->brt_vdevs[vdevid]; 2076 if (brtvd == NULL || !brtvd->bv_initiated) 2077 continue; 2078 2079 zap_cursor_t zc; 2080 zap_attribute_t za; 2081 for (zap_cursor_init(&zc, brt->brt_mos, brtvd->bv_mos_entries); 2082 zap_cursor_retrieve(&zc, &za) == 0; 2083 zap_cursor_advance(&zc)) { 2084 uint64_t offset = *(uint64_t *)za.za_name; 2085 uint64_t refcnt = za.za_first_integer; 2086 2087 snprintf(dva, sizeof (dva), "%" PRIu64 ":%llx", vdevid, 2088 (u_longlong_t)offset); 2089 printf("%-16s %-10llu\n", dva, (u_longlong_t)refcnt); 2090 } 2091 zap_cursor_fini(&zc); 2092 } 2093} 2094 2095static void 2096dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 2097{ 2098 char *prefix = arg; 2099 2100 (void) printf("%s [%llu,%llu) length %llu\n", 2101 prefix, 2102 (u_longlong_t)start, 2103 (u_longlong_t)(start + size), 2104 (u_longlong_t)(size)); 2105} 2106 2107static void 2108dump_dtl(vdev_t *vd, int indent) 2109{ 2110 spa_t *spa = vd->vdev_spa; 2111 boolean_t required; 2112 const char *name[DTL_TYPES] = { "missing", "partial", "scrub", 2113 "outage" }; 2114 char prefix[256]; 2115 2116 spa_vdev_state_enter(spa, SCL_NONE); 2117 required = vdev_dtl_required(vd); 2118 (void) spa_vdev_state_exit(spa, NULL, 0); 2119 2120 if (indent == 0) 2121 (void) printf("\nDirty time logs:\n\n"); 2122 2123 (void) printf("\t%*s%s [%s]\n", indent, "", 2124 vd->vdev_path ? vd->vdev_path : 2125 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 2126 required ? "DTL-required" : "DTL-expendable"); 2127 2128 for (int t = 0; t < DTL_TYPES; t++) { 2129 range_tree_t *rt = vd->vdev_dtl[t]; 2130 if (range_tree_space(rt) == 0) 2131 continue; 2132 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 2133 indent + 2, "", name[t]); 2134 range_tree_walk(rt, dump_dtl_seg, prefix); 2135 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 2136 dump_spacemap(spa->spa_meta_objset, 2137 vd->vdev_dtl_sm); 2138 } 2139 2140 for (unsigned c = 0; c < vd->vdev_children; c++) 2141 dump_dtl(vd->vdev_child[c], indent + 4); 2142} 2143 2144static void 2145dump_history(spa_t *spa) 2146{ 2147 nvlist_t **events = NULL; 2148 char *buf; 2149 uint64_t resid, len, off = 0; 2150 uint_t num = 0; 2151 int error; 2152 char tbuf[30]; 2153 2154 if ((buf = malloc(SPA_OLD_MAXBLOCKSIZE)) == NULL) { 2155 (void) fprintf(stderr, "%s: unable to allocate I/O buffer\n", 2156 __func__); 2157 return; 2158 } 2159 2160 do { 2161 len = SPA_OLD_MAXBLOCKSIZE; 2162 2163 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 2164 (void) fprintf(stderr, "Unable to read history: " 2165 "error %d\n", error); 2166 free(buf); 2167 return; 2168 } 2169 2170 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 2171 break; 2172 2173 off -= resid; 2174 } while (len != 0); 2175 2176 (void) printf("\nHistory:\n"); 2177 for (unsigned i = 0; i < num; i++) { 2178 boolean_t printed = B_FALSE; 2179 2180 if (nvlist_exists(events[i], ZPOOL_HIST_TIME)) { 2181 time_t tsec; 2182 struct tm t; 2183 2184 tsec = fnvlist_lookup_uint64(events[i], 2185 ZPOOL_HIST_TIME); 2186 (void) localtime_r(&tsec, &t); 2187 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 2188 } else { 2189 tbuf[0] = '\0'; 2190 } 2191 2192 if (nvlist_exists(events[i], ZPOOL_HIST_CMD)) { 2193 (void) printf("%s %s\n", tbuf, 2194 fnvlist_lookup_string(events[i], ZPOOL_HIST_CMD)); 2195 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_EVENT)) { 2196 uint64_t ievent; 2197 2198 ievent = fnvlist_lookup_uint64(events[i], 2199 ZPOOL_HIST_INT_EVENT); 2200 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 2201 goto next; 2202 2203 (void) printf(" %s [internal %s txg:%ju] %s\n", 2204 tbuf, 2205 zfs_history_event_names[ievent], 2206 fnvlist_lookup_uint64(events[i], 2207 ZPOOL_HIST_TXG), 2208 fnvlist_lookup_string(events[i], 2209 ZPOOL_HIST_INT_STR)); 2210 } else if (nvlist_exists(events[i], ZPOOL_HIST_INT_NAME)) { 2211 (void) printf("%s [txg:%ju] %s", tbuf, 2212 fnvlist_lookup_uint64(events[i], 2213 ZPOOL_HIST_TXG), 2214 fnvlist_lookup_string(events[i], 2215 ZPOOL_HIST_INT_NAME)); 2216 2217 if (nvlist_exists(events[i], ZPOOL_HIST_DSNAME)) { 2218 (void) printf(" %s (%llu)", 2219 fnvlist_lookup_string(events[i], 2220 ZPOOL_HIST_DSNAME), 2221 (u_longlong_t)fnvlist_lookup_uint64( 2222 events[i], 2223 ZPOOL_HIST_DSID)); 2224 } 2225 2226 (void) printf(" %s\n", fnvlist_lookup_string(events[i], 2227 ZPOOL_HIST_INT_STR)); 2228 } else if (nvlist_exists(events[i], ZPOOL_HIST_IOCTL)) { 2229 (void) printf("%s ioctl %s\n", tbuf, 2230 fnvlist_lookup_string(events[i], 2231 ZPOOL_HIST_IOCTL)); 2232 2233 if (nvlist_exists(events[i], ZPOOL_HIST_INPUT_NVL)) { 2234 (void) printf(" input:\n"); 2235 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2236 ZPOOL_HIST_INPUT_NVL), 8); 2237 } 2238 if (nvlist_exists(events[i], ZPOOL_HIST_OUTPUT_NVL)) { 2239 (void) printf(" output:\n"); 2240 dump_nvlist(fnvlist_lookup_nvlist(events[i], 2241 ZPOOL_HIST_OUTPUT_NVL), 8); 2242 } 2243 if (nvlist_exists(events[i], ZPOOL_HIST_ERRNO)) { 2244 (void) printf(" errno: %lld\n", 2245 (longlong_t)fnvlist_lookup_int64(events[i], 2246 ZPOOL_HIST_ERRNO)); 2247 } 2248 } else { 2249 goto next; 2250 } 2251 2252 printed = B_TRUE; 2253next: 2254 if (dump_opt['h'] > 1) { 2255 if (!printed) 2256 (void) printf("unrecognized record:\n"); 2257 dump_nvlist(events[i], 2); 2258 } 2259 } 2260 free(buf); 2261} 2262 2263static void 2264dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 2265{ 2266 (void) os, (void) object, (void) data, (void) size; 2267} 2268 2269static uint64_t 2270blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 2271 const zbookmark_phys_t *zb) 2272{ 2273 if (dnp == NULL) { 2274 ASSERT(zb->zb_level < 0); 2275 if (zb->zb_object == 0) 2276 return (zb->zb_blkid); 2277 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 2278 } 2279 2280 ASSERT(zb->zb_level >= 0); 2281 2282 return ((zb->zb_blkid << 2283 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 2284 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 2285} 2286 2287static void 2288snprintf_zstd_header(spa_t *spa, char *blkbuf, size_t buflen, 2289 const blkptr_t *bp) 2290{ 2291 static abd_t *pabd = NULL; 2292 void *buf; 2293 zio_t *zio; 2294 zfs_zstdhdr_t zstd_hdr; 2295 int error; 2296 2297 if (BP_GET_COMPRESS(bp) != ZIO_COMPRESS_ZSTD) 2298 return; 2299 2300 if (BP_IS_HOLE(bp)) 2301 return; 2302 2303 if (BP_IS_EMBEDDED(bp)) { 2304 buf = malloc(SPA_MAXBLOCKSIZE); 2305 if (buf == NULL) { 2306 (void) fprintf(stderr, "out of memory\n"); 2307 zdb_exit(1); 2308 } 2309 decode_embedded_bp_compressed(bp, buf); 2310 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2311 free(buf); 2312 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2313 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2314 (void) snprintf(blkbuf + strlen(blkbuf), 2315 buflen - strlen(blkbuf), 2316 " ZSTD:size=%u:version=%u:level=%u:EMBEDDED", 2317 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2318 zfs_get_hdrlevel(&zstd_hdr)); 2319 return; 2320 } 2321 2322 if (!pabd) 2323 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 2324 zio = zio_root(spa, NULL, NULL, 0); 2325 2326 /* Decrypt but don't decompress so we can read the compression header */ 2327 zio_nowait(zio_read(zio, spa, bp, pabd, BP_GET_PSIZE(bp), NULL, NULL, 2328 ZIO_PRIORITY_SYNC_READ, ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW_COMPRESS, 2329 NULL)); 2330 error = zio_wait(zio); 2331 if (error) { 2332 (void) fprintf(stderr, "read failed: %d\n", error); 2333 return; 2334 } 2335 buf = abd_borrow_buf_copy(pabd, BP_GET_LSIZE(bp)); 2336 memcpy(&zstd_hdr, buf, sizeof (zstd_hdr)); 2337 zstd_hdr.c_len = BE_32(zstd_hdr.c_len); 2338 zstd_hdr.raw_version_level = BE_32(zstd_hdr.raw_version_level); 2339 2340 (void) snprintf(blkbuf + strlen(blkbuf), 2341 buflen - strlen(blkbuf), 2342 " ZSTD:size=%u:version=%u:level=%u:NORMAL", 2343 zstd_hdr.c_len, zfs_get_hdrversion(&zstd_hdr), 2344 zfs_get_hdrlevel(&zstd_hdr)); 2345 2346 abd_return_buf_copy(pabd, buf, BP_GET_LSIZE(bp)); 2347} 2348 2349static void 2350snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp, 2351 boolean_t bp_freed) 2352{ 2353 const dva_t *dva = bp->blk_dva; 2354 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 2355 int i; 2356 2357 if (dump_opt['b'] >= 6) { 2358 snprintf_blkptr(blkbuf, buflen, bp); 2359 if (bp_freed) { 2360 (void) snprintf(blkbuf + strlen(blkbuf), 2361 buflen - strlen(blkbuf), " %s", "FREE"); 2362 } 2363 return; 2364 } 2365 2366 if (BP_IS_EMBEDDED(bp)) { 2367 (void) sprintf(blkbuf, 2368 "EMBEDDED et=%u %llxL/%llxP B=%llu", 2369 (int)BPE_GET_ETYPE(bp), 2370 (u_longlong_t)BPE_GET_LSIZE(bp), 2371 (u_longlong_t)BPE_GET_PSIZE(bp), 2372 (u_longlong_t)BP_GET_LOGICAL_BIRTH(bp)); 2373 return; 2374 } 2375 2376 blkbuf[0] = '\0'; 2377 2378 for (i = 0; i < ndvas; i++) 2379 (void) snprintf(blkbuf + strlen(blkbuf), 2380 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 2381 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 2382 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 2383 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 2384 2385 if (BP_IS_HOLE(bp)) { 2386 (void) snprintf(blkbuf + strlen(blkbuf), 2387 buflen - strlen(blkbuf), 2388 "%llxL B=%llu", 2389 (u_longlong_t)BP_GET_LSIZE(bp), 2390 (u_longlong_t)BP_GET_LOGICAL_BIRTH(bp)); 2391 } else { 2392 (void) snprintf(blkbuf + strlen(blkbuf), 2393 buflen - strlen(blkbuf), 2394 "%llxL/%llxP F=%llu B=%llu/%llu", 2395 (u_longlong_t)BP_GET_LSIZE(bp), 2396 (u_longlong_t)BP_GET_PSIZE(bp), 2397 (u_longlong_t)BP_GET_FILL(bp), 2398 (u_longlong_t)BP_GET_LOGICAL_BIRTH(bp), 2399 (u_longlong_t)BP_GET_BIRTH(bp)); 2400 if (bp_freed) 2401 (void) snprintf(blkbuf + strlen(blkbuf), 2402 buflen - strlen(blkbuf), " %s", "FREE"); 2403 (void) snprintf(blkbuf + strlen(blkbuf), 2404 buflen - strlen(blkbuf), 2405 " cksum=%016llx:%016llx:%016llx:%016llx", 2406 (u_longlong_t)bp->blk_cksum.zc_word[0], 2407 (u_longlong_t)bp->blk_cksum.zc_word[1], 2408 (u_longlong_t)bp->blk_cksum.zc_word[2], 2409 (u_longlong_t)bp->blk_cksum.zc_word[3]); 2410 } 2411} 2412 2413static void 2414print_indirect(spa_t *spa, blkptr_t *bp, const zbookmark_phys_t *zb, 2415 const dnode_phys_t *dnp) 2416{ 2417 char blkbuf[BP_SPRINTF_LEN]; 2418 int l; 2419 2420 if (!BP_IS_EMBEDDED(bp)) { 2421 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 2422 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 2423 } 2424 2425 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 2426 2427 ASSERT(zb->zb_level >= 0); 2428 2429 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 2430 if (l == zb->zb_level) { 2431 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 2432 } else { 2433 (void) printf(" "); 2434 } 2435 } 2436 2437 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, B_FALSE); 2438 if (dump_opt['Z'] && BP_GET_COMPRESS(bp) == ZIO_COMPRESS_ZSTD) 2439 snprintf_zstd_header(spa, blkbuf, sizeof (blkbuf), bp); 2440 (void) printf("%s\n", blkbuf); 2441} 2442 2443static int 2444visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 2445 blkptr_t *bp, const zbookmark_phys_t *zb) 2446{ 2447 int err = 0; 2448 2449 if (BP_GET_LOGICAL_BIRTH(bp) == 0) 2450 return (0); 2451 2452 print_indirect(spa, bp, zb, dnp); 2453 2454 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 2455 arc_flags_t flags = ARC_FLAG_WAIT; 2456 int i; 2457 blkptr_t *cbp; 2458 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 2459 arc_buf_t *buf; 2460 uint64_t fill = 0; 2461 ASSERT(!BP_IS_REDACTED(bp)); 2462 2463 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 2464 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 2465 if (err) 2466 return (err); 2467 ASSERT(buf->b_data); 2468 2469 /* recursively visit blocks below this */ 2470 cbp = buf->b_data; 2471 for (i = 0; i < epb; i++, cbp++) { 2472 zbookmark_phys_t czb; 2473 2474 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 2475 zb->zb_level - 1, 2476 zb->zb_blkid * epb + i); 2477 err = visit_indirect(spa, dnp, cbp, &czb); 2478 if (err) 2479 break; 2480 fill += BP_GET_FILL(cbp); 2481 } 2482 if (!err) 2483 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 2484 arc_buf_destroy(buf, &buf); 2485 } 2486 2487 return (err); 2488} 2489 2490static void 2491dump_indirect(dnode_t *dn) 2492{ 2493 dnode_phys_t *dnp = dn->dn_phys; 2494 zbookmark_phys_t czb; 2495 2496 (void) printf("Indirect blocks:\n"); 2497 2498 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 2499 dn->dn_object, dnp->dn_nlevels - 1, 0); 2500 for (int j = 0; j < dnp->dn_nblkptr; j++) { 2501 czb.zb_blkid = j; 2502 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 2503 &dnp->dn_blkptr[j], &czb); 2504 } 2505 2506 (void) printf("\n"); 2507} 2508 2509static void 2510dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 2511{ 2512 (void) os, (void) object; 2513 dsl_dir_phys_t *dd = data; 2514 time_t crtime; 2515 char nice[32]; 2516 2517 /* make sure nicenum has enough space */ 2518 _Static_assert(sizeof (nice) >= NN_NUMBUF_SZ, "nice truncated"); 2519 2520 if (dd == NULL) 2521 return; 2522 2523 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 2524 2525 crtime = dd->dd_creation_time; 2526 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2527 (void) printf("\t\thead_dataset_obj = %llu\n", 2528 (u_longlong_t)dd->dd_head_dataset_obj); 2529 (void) printf("\t\tparent_dir_obj = %llu\n", 2530 (u_longlong_t)dd->dd_parent_obj); 2531 (void) printf("\t\torigin_obj = %llu\n", 2532 (u_longlong_t)dd->dd_origin_obj); 2533 (void) printf("\t\tchild_dir_zapobj = %llu\n", 2534 (u_longlong_t)dd->dd_child_dir_zapobj); 2535 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 2536 (void) printf("\t\tused_bytes = %s\n", nice); 2537 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 2538 (void) printf("\t\tcompressed_bytes = %s\n", nice); 2539 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 2540 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 2541 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 2542 (void) printf("\t\tquota = %s\n", nice); 2543 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 2544 (void) printf("\t\treserved = %s\n", nice); 2545 (void) printf("\t\tprops_zapobj = %llu\n", 2546 (u_longlong_t)dd->dd_props_zapobj); 2547 (void) printf("\t\tdeleg_zapobj = %llu\n", 2548 (u_longlong_t)dd->dd_deleg_zapobj); 2549 (void) printf("\t\tflags = %llx\n", 2550 (u_longlong_t)dd->dd_flags); 2551 2552#define DO(which) \ 2553 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 2554 sizeof (nice)); \ 2555 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 2556 DO(HEAD); 2557 DO(SNAP); 2558 DO(CHILD); 2559 DO(CHILD_RSRV); 2560 DO(REFRSRV); 2561#undef DO 2562 (void) printf("\t\tclones = %llu\n", 2563 (u_longlong_t)dd->dd_clones); 2564} 2565 2566static void 2567dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 2568{ 2569 (void) os, (void) object; 2570 dsl_dataset_phys_t *ds = data; 2571 time_t crtime; 2572 char used[32], compressed[32], uncompressed[32], unique[32]; 2573 char blkbuf[BP_SPRINTF_LEN]; 2574 2575 /* make sure nicenum has enough space */ 2576 _Static_assert(sizeof (used) >= NN_NUMBUF_SZ, "used truncated"); 2577 _Static_assert(sizeof (compressed) >= NN_NUMBUF_SZ, 2578 "compressed truncated"); 2579 _Static_assert(sizeof (uncompressed) >= NN_NUMBUF_SZ, 2580 "uncompressed truncated"); 2581 _Static_assert(sizeof (unique) >= NN_NUMBUF_SZ, "unique truncated"); 2582 2583 if (ds == NULL) 2584 return; 2585 2586 ASSERT(size == sizeof (*ds)); 2587 crtime = ds->ds_creation_time; 2588 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 2589 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 2590 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 2591 sizeof (uncompressed)); 2592 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 2593 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 2594 2595 (void) printf("\t\tdir_obj = %llu\n", 2596 (u_longlong_t)ds->ds_dir_obj); 2597 (void) printf("\t\tprev_snap_obj = %llu\n", 2598 (u_longlong_t)ds->ds_prev_snap_obj); 2599 (void) printf("\t\tprev_snap_txg = %llu\n", 2600 (u_longlong_t)ds->ds_prev_snap_txg); 2601 (void) printf("\t\tnext_snap_obj = %llu\n", 2602 (u_longlong_t)ds->ds_next_snap_obj); 2603 (void) printf("\t\tsnapnames_zapobj = %llu\n", 2604 (u_longlong_t)ds->ds_snapnames_zapobj); 2605 (void) printf("\t\tnum_children = %llu\n", 2606 (u_longlong_t)ds->ds_num_children); 2607 (void) printf("\t\tuserrefs_obj = %llu\n", 2608 (u_longlong_t)ds->ds_userrefs_obj); 2609 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 2610 (void) printf("\t\tcreation_txg = %llu\n", 2611 (u_longlong_t)ds->ds_creation_txg); 2612 (void) printf("\t\tdeadlist_obj = %llu\n", 2613 (u_longlong_t)ds->ds_deadlist_obj); 2614 (void) printf("\t\tused_bytes = %s\n", used); 2615 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 2616 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 2617 (void) printf("\t\tunique = %s\n", unique); 2618 (void) printf("\t\tfsid_guid = %llu\n", 2619 (u_longlong_t)ds->ds_fsid_guid); 2620 (void) printf("\t\tguid = %llu\n", 2621 (u_longlong_t)ds->ds_guid); 2622 (void) printf("\t\tflags = %llx\n", 2623 (u_longlong_t)ds->ds_flags); 2624 (void) printf("\t\tnext_clones_obj = %llu\n", 2625 (u_longlong_t)ds->ds_next_clones_obj); 2626 (void) printf("\t\tprops_obj = %llu\n", 2627 (u_longlong_t)ds->ds_props_obj); 2628 (void) printf("\t\tbp = %s\n", blkbuf); 2629} 2630 2631static int 2632dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2633{ 2634 (void) arg, (void) tx; 2635 char blkbuf[BP_SPRINTF_LEN]; 2636 2637 if (BP_GET_LOGICAL_BIRTH(bp) != 0) { 2638 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2639 (void) printf("\t%s\n", blkbuf); 2640 } 2641 return (0); 2642} 2643 2644static void 2645dump_bptree(objset_t *os, uint64_t obj, const char *name) 2646{ 2647 char bytes[32]; 2648 bptree_phys_t *bt; 2649 dmu_buf_t *db; 2650 2651 /* make sure nicenum has enough space */ 2652 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2653 2654 if (dump_opt['d'] < 3) 2655 return; 2656 2657 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 2658 bt = db->db_data; 2659 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 2660 (void) printf("\n %s: %llu datasets, %s\n", 2661 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 2662 dmu_buf_rele(db, FTAG); 2663 2664 if (dump_opt['d'] < 5) 2665 return; 2666 2667 (void) printf("\n"); 2668 2669 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 2670} 2671 2672static int 2673dump_bpobj_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, dmu_tx_t *tx) 2674{ 2675 (void) arg, (void) tx; 2676 char blkbuf[BP_SPRINTF_LEN]; 2677 2678 ASSERT(BP_GET_LOGICAL_BIRTH(bp) != 0); 2679 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp, bp_freed); 2680 (void) printf("\t%s\n", blkbuf); 2681 return (0); 2682} 2683 2684static void 2685dump_full_bpobj(bpobj_t *bpo, const char *name, int indent) 2686{ 2687 char bytes[32]; 2688 char comp[32]; 2689 char uncomp[32]; 2690 uint64_t i; 2691 2692 /* make sure nicenum has enough space */ 2693 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2694 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 2695 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 2696 2697 if (dump_opt['d'] < 3) 2698 return; 2699 2700 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 2701 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2702 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 2703 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 2704 if (bpo->bpo_havefreed) { 2705 (void) printf(" %*s: object %llu, %llu local " 2706 "blkptrs, %llu freed, %llu subobjs in object %llu, " 2707 "%s (%s/%s comp)\n", 2708 indent * 8, name, 2709 (u_longlong_t)bpo->bpo_object, 2710 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2711 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2712 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2713 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2714 bytes, comp, uncomp); 2715 } else { 2716 (void) printf(" %*s: object %llu, %llu local " 2717 "blkptrs, %llu subobjs in object %llu, " 2718 "%s (%s/%s comp)\n", 2719 indent * 8, name, 2720 (u_longlong_t)bpo->bpo_object, 2721 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2722 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 2723 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 2724 bytes, comp, uncomp); 2725 } 2726 2727 for (i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2728 uint64_t subobj; 2729 bpobj_t subbpo; 2730 int error; 2731 VERIFY0(dmu_read(bpo->bpo_os, 2732 bpo->bpo_phys->bpo_subobjs, 2733 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2734 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2735 if (error != 0) { 2736 (void) printf("ERROR %u while trying to open " 2737 "subobj id %llu\n", 2738 error, (u_longlong_t)subobj); 2739 continue; 2740 } 2741 dump_full_bpobj(&subbpo, "subobj", indent + 1); 2742 bpobj_close(&subbpo); 2743 } 2744 } else { 2745 if (bpo->bpo_havefreed) { 2746 (void) printf(" %*s: object %llu, %llu blkptrs, " 2747 "%llu freed, %s\n", 2748 indent * 8, name, 2749 (u_longlong_t)bpo->bpo_object, 2750 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2751 (u_longlong_t)bpo->bpo_phys->bpo_num_freed, 2752 bytes); 2753 } else { 2754 (void) printf(" %*s: object %llu, %llu blkptrs, " 2755 "%s\n", 2756 indent * 8, name, 2757 (u_longlong_t)bpo->bpo_object, 2758 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 2759 bytes); 2760 } 2761 } 2762 2763 if (dump_opt['d'] < 5) 2764 return; 2765 2766 2767 if (indent == 0) { 2768 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 2769 (void) printf("\n"); 2770 } 2771} 2772 2773static int 2774dump_bookmark(dsl_pool_t *dp, char *name, boolean_t print_redact, 2775 boolean_t print_list) 2776{ 2777 int err = 0; 2778 zfs_bookmark_phys_t prop; 2779 objset_t *mos = dp->dp_spa->spa_meta_objset; 2780 err = dsl_bookmark_lookup(dp, name, NULL, &prop); 2781 2782 if (err != 0) { 2783 return (err); 2784 } 2785 2786 (void) printf("\t#%s: ", strchr(name, '#') + 1); 2787 (void) printf("{guid: %llx creation_txg: %llu creation_time: " 2788 "%llu redaction_obj: %llu}\n", (u_longlong_t)prop.zbm_guid, 2789 (u_longlong_t)prop.zbm_creation_txg, 2790 (u_longlong_t)prop.zbm_creation_time, 2791 (u_longlong_t)prop.zbm_redaction_obj); 2792 2793 IMPLY(print_list, print_redact); 2794 if (!print_redact || prop.zbm_redaction_obj == 0) 2795 return (0); 2796 2797 redaction_list_t *rl; 2798 VERIFY0(dsl_redaction_list_hold_obj(dp, 2799 prop.zbm_redaction_obj, FTAG, &rl)); 2800 2801 redaction_list_phys_t *rlp = rl->rl_phys; 2802 (void) printf("\tRedacted:\n\t\tProgress: "); 2803 if (rlp->rlp_last_object != UINT64_MAX || 2804 rlp->rlp_last_blkid != UINT64_MAX) { 2805 (void) printf("%llu %llu (incomplete)\n", 2806 (u_longlong_t)rlp->rlp_last_object, 2807 (u_longlong_t)rlp->rlp_last_blkid); 2808 } else { 2809 (void) printf("complete\n"); 2810 } 2811 (void) printf("\t\tSnapshots: ["); 2812 for (unsigned int i = 0; i < rlp->rlp_num_snaps; i++) { 2813 if (i > 0) 2814 (void) printf(", "); 2815 (void) printf("%0llu", 2816 (u_longlong_t)rlp->rlp_snaps[i]); 2817 } 2818 (void) printf("]\n\t\tLength: %llu\n", 2819 (u_longlong_t)rlp->rlp_num_entries); 2820 2821 if (!print_list) { 2822 dsl_redaction_list_rele(rl, FTAG); 2823 return (0); 2824 } 2825 2826 if (rlp->rlp_num_entries == 0) { 2827 dsl_redaction_list_rele(rl, FTAG); 2828 (void) printf("\t\tRedaction List: []\n\n"); 2829 return (0); 2830 } 2831 2832 redact_block_phys_t *rbp_buf; 2833 uint64_t size; 2834 dmu_object_info_t doi; 2835 2836 VERIFY0(dmu_object_info(mos, prop.zbm_redaction_obj, &doi)); 2837 size = doi.doi_max_offset; 2838 rbp_buf = kmem_alloc(size, KM_SLEEP); 2839 2840 err = dmu_read(mos, prop.zbm_redaction_obj, 0, size, 2841 rbp_buf, 0); 2842 if (err != 0) { 2843 dsl_redaction_list_rele(rl, FTAG); 2844 kmem_free(rbp_buf, size); 2845 return (err); 2846 } 2847 2848 (void) printf("\t\tRedaction List: [{object: %llx, offset: " 2849 "%llx, blksz: %x, count: %llx}", 2850 (u_longlong_t)rbp_buf[0].rbp_object, 2851 (u_longlong_t)rbp_buf[0].rbp_blkid, 2852 (uint_t)(redact_block_get_size(&rbp_buf[0])), 2853 (u_longlong_t)redact_block_get_count(&rbp_buf[0])); 2854 2855 for (size_t i = 1; i < rlp->rlp_num_entries; i++) { 2856 (void) printf(",\n\t\t{object: %llx, offset: %llx, " 2857 "blksz: %x, count: %llx}", 2858 (u_longlong_t)rbp_buf[i].rbp_object, 2859 (u_longlong_t)rbp_buf[i].rbp_blkid, 2860 (uint_t)(redact_block_get_size(&rbp_buf[i])), 2861 (u_longlong_t)redact_block_get_count(&rbp_buf[i])); 2862 } 2863 dsl_redaction_list_rele(rl, FTAG); 2864 kmem_free(rbp_buf, size); 2865 (void) printf("]\n\n"); 2866 return (0); 2867} 2868 2869static void 2870dump_bookmarks(objset_t *os, int verbosity) 2871{ 2872 zap_cursor_t zc; 2873 zap_attribute_t attr; 2874 dsl_dataset_t *ds = dmu_objset_ds(os); 2875 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 2876 objset_t *mos = os->os_spa->spa_meta_objset; 2877 if (verbosity < 4) 2878 return; 2879 dsl_pool_config_enter(dp, FTAG); 2880 2881 for (zap_cursor_init(&zc, mos, ds->ds_bookmarks_obj); 2882 zap_cursor_retrieve(&zc, &attr) == 0; 2883 zap_cursor_advance(&zc)) { 2884 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2885 char buf[ZFS_MAX_DATASET_NAME_LEN]; 2886 int len; 2887 dmu_objset_name(os, osname); 2888 len = snprintf(buf, sizeof (buf), "%s#%s", osname, 2889 attr.za_name); 2890 VERIFY3S(len, <, ZFS_MAX_DATASET_NAME_LEN); 2891 (void) dump_bookmark(dp, buf, verbosity >= 5, verbosity >= 6); 2892 } 2893 zap_cursor_fini(&zc); 2894 dsl_pool_config_exit(dp, FTAG); 2895} 2896 2897static void 2898bpobj_count_refd(bpobj_t *bpo) 2899{ 2900 mos_obj_refd(bpo->bpo_object); 2901 2902 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 2903 mos_obj_refd(bpo->bpo_phys->bpo_subobjs); 2904 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 2905 uint64_t subobj; 2906 bpobj_t subbpo; 2907 int error; 2908 VERIFY0(dmu_read(bpo->bpo_os, 2909 bpo->bpo_phys->bpo_subobjs, 2910 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 2911 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 2912 if (error != 0) { 2913 (void) printf("ERROR %u while trying to open " 2914 "subobj id %llu\n", 2915 error, (u_longlong_t)subobj); 2916 continue; 2917 } 2918 bpobj_count_refd(&subbpo); 2919 bpobj_close(&subbpo); 2920 } 2921 } 2922} 2923 2924static int 2925dsl_deadlist_entry_count_refd(void *arg, dsl_deadlist_entry_t *dle) 2926{ 2927 spa_t *spa = arg; 2928 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2929 if (dle->dle_bpobj.bpo_object != empty_bpobj) 2930 bpobj_count_refd(&dle->dle_bpobj); 2931 return (0); 2932} 2933 2934static int 2935dsl_deadlist_entry_dump(void *arg, dsl_deadlist_entry_t *dle) 2936{ 2937 ASSERT(arg == NULL); 2938 if (dump_opt['d'] >= 5) { 2939 char buf[128]; 2940 (void) snprintf(buf, sizeof (buf), 2941 "mintxg %llu -> obj %llu", 2942 (longlong_t)dle->dle_mintxg, 2943 (longlong_t)dle->dle_bpobj.bpo_object); 2944 2945 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 2946 } else { 2947 (void) printf("mintxg %llu -> obj %llu\n", 2948 (longlong_t)dle->dle_mintxg, 2949 (longlong_t)dle->dle_bpobj.bpo_object); 2950 } 2951 return (0); 2952} 2953 2954static void 2955dump_blkptr_list(dsl_deadlist_t *dl, const char *name) 2956{ 2957 char bytes[32]; 2958 char comp[32]; 2959 char uncomp[32]; 2960 char entries[32]; 2961 spa_t *spa = dmu_objset_spa(dl->dl_os); 2962 uint64_t empty_bpobj = spa->spa_dsl_pool->dp_empty_bpobj; 2963 2964 if (dl->dl_oldfmt) { 2965 if (dl->dl_bpobj.bpo_object != empty_bpobj) 2966 bpobj_count_refd(&dl->dl_bpobj); 2967 } else { 2968 mos_obj_refd(dl->dl_object); 2969 dsl_deadlist_iterate(dl, dsl_deadlist_entry_count_refd, spa); 2970 } 2971 2972 /* make sure nicenum has enough space */ 2973 _Static_assert(sizeof (bytes) >= NN_NUMBUF_SZ, "bytes truncated"); 2974 _Static_assert(sizeof (comp) >= NN_NUMBUF_SZ, "comp truncated"); 2975 _Static_assert(sizeof (uncomp) >= NN_NUMBUF_SZ, "uncomp truncated"); 2976 _Static_assert(sizeof (entries) >= NN_NUMBUF_SZ, "entries truncated"); 2977 2978 if (dump_opt['d'] < 3) 2979 return; 2980 2981 if (dl->dl_oldfmt) { 2982 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 2983 return; 2984 } 2985 2986 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 2987 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 2988 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 2989 zdb_nicenum(avl_numnodes(&dl->dl_tree), entries, sizeof (entries)); 2990 (void) printf("\n %s: %s (%s/%s comp), %s entries\n", 2991 name, bytes, comp, uncomp, entries); 2992 2993 if (dump_opt['d'] < 4) 2994 return; 2995 2996 (void) putchar('\n'); 2997 2998 dsl_deadlist_iterate(dl, dsl_deadlist_entry_dump, NULL); 2999} 3000 3001static int 3002verify_dd_livelist(objset_t *os) 3003{ 3004 uint64_t ll_used, used, ll_comp, comp, ll_uncomp, uncomp; 3005 dsl_pool_t *dp = spa_get_dsl(os->os_spa); 3006 dsl_dir_t *dd = os->os_dsl_dataset->ds_dir; 3007 3008 ASSERT(!dmu_objset_is_snapshot(os)); 3009 if (!dsl_deadlist_is_open(&dd->dd_livelist)) 3010 return (0); 3011 3012 /* Iterate through the livelist to check for duplicates */ 3013 dsl_deadlist_iterate(&dd->dd_livelist, sublivelist_verify_lightweight, 3014 NULL); 3015 3016 dsl_pool_config_enter(dp, FTAG); 3017 dsl_deadlist_space(&dd->dd_livelist, &ll_used, 3018 &ll_comp, &ll_uncomp); 3019 3020 dsl_dataset_t *origin_ds; 3021 ASSERT(dsl_pool_config_held(dp)); 3022 VERIFY0(dsl_dataset_hold_obj(dp, 3023 dsl_dir_phys(dd)->dd_origin_obj, FTAG, &origin_ds)); 3024 VERIFY0(dsl_dataset_space_written(origin_ds, os->os_dsl_dataset, 3025 &used, &comp, &uncomp)); 3026 dsl_dataset_rele(origin_ds, FTAG); 3027 dsl_pool_config_exit(dp, FTAG); 3028 /* 3029 * It's possible that the dataset's uncomp space is larger than the 3030 * livelist's because livelists do not track embedded block pointers 3031 */ 3032 if (used != ll_used || comp != ll_comp || uncomp < ll_uncomp) { 3033 char nice_used[32], nice_comp[32], nice_uncomp[32]; 3034 (void) printf("Discrepancy in space accounting:\n"); 3035 zdb_nicenum(used, nice_used, sizeof (nice_used)); 3036 zdb_nicenum(comp, nice_comp, sizeof (nice_comp)); 3037 zdb_nicenum(uncomp, nice_uncomp, sizeof (nice_uncomp)); 3038 (void) printf("dir: used %s, comp %s, uncomp %s\n", 3039 nice_used, nice_comp, nice_uncomp); 3040 zdb_nicenum(ll_used, nice_used, sizeof (nice_used)); 3041 zdb_nicenum(ll_comp, nice_comp, sizeof (nice_comp)); 3042 zdb_nicenum(ll_uncomp, nice_uncomp, sizeof (nice_uncomp)); 3043 (void) printf("livelist: used %s, comp %s, uncomp %s\n", 3044 nice_used, nice_comp, nice_uncomp); 3045 return (1); 3046 } 3047 return (0); 3048} 3049 3050static char *key_material = NULL; 3051 3052static boolean_t 3053zdb_derive_key(dsl_dir_t *dd, uint8_t *key_out) 3054{ 3055 uint64_t keyformat, salt, iters; 3056 int i; 3057 unsigned char c; 3058 3059 VERIFY0(zap_lookup(dd->dd_pool->dp_meta_objset, dd->dd_crypto_obj, 3060 zfs_prop_to_name(ZFS_PROP_KEYFORMAT), sizeof (uint64_t), 3061 1, &keyformat)); 3062 3063 switch (keyformat) { 3064 case ZFS_KEYFORMAT_HEX: 3065 for (i = 0; i < WRAPPING_KEY_LEN * 2; i += 2) { 3066 if (!isxdigit(key_material[i]) || 3067 !isxdigit(key_material[i+1])) 3068 return (B_FALSE); 3069 if (sscanf(&key_material[i], "%02hhx", &c) != 1) 3070 return (B_FALSE); 3071 key_out[i / 2] = c; 3072 } 3073 break; 3074 3075 case ZFS_KEYFORMAT_PASSPHRASE: 3076 VERIFY0(zap_lookup(dd->dd_pool->dp_meta_objset, 3077 dd->dd_crypto_obj, zfs_prop_to_name(ZFS_PROP_PBKDF2_SALT), 3078 sizeof (uint64_t), 1, &salt)); 3079 VERIFY0(zap_lookup(dd->dd_pool->dp_meta_objset, 3080 dd->dd_crypto_obj, zfs_prop_to_name(ZFS_PROP_PBKDF2_ITERS), 3081 sizeof (uint64_t), 1, &iters)); 3082 3083 if (PKCS5_PBKDF2_HMAC_SHA1(key_material, strlen(key_material), 3084 ((uint8_t *)&salt), sizeof (uint64_t), iters, 3085 WRAPPING_KEY_LEN, key_out) != 1) 3086 return (B_FALSE); 3087 3088 break; 3089 3090 default: 3091 fatal("no support for key format %u\n", 3092 (unsigned int) keyformat); 3093 } 3094 3095 return (B_TRUE); 3096} 3097 3098static char encroot[ZFS_MAX_DATASET_NAME_LEN]; 3099static boolean_t key_loaded = B_FALSE; 3100 3101static void 3102zdb_load_key(objset_t *os) 3103{ 3104 dsl_pool_t *dp; 3105 dsl_dir_t *dd, *rdd; 3106 uint8_t key[WRAPPING_KEY_LEN]; 3107 uint64_t rddobj; 3108 int err; 3109 3110 dp = spa_get_dsl(os->os_spa); 3111 dd = os->os_dsl_dataset->ds_dir; 3112 3113 dsl_pool_config_enter(dp, FTAG); 3114 VERIFY0(zap_lookup(dd->dd_pool->dp_meta_objset, dd->dd_crypto_obj, 3115 DSL_CRYPTO_KEY_ROOT_DDOBJ, sizeof (uint64_t), 1, &rddobj)); 3116 VERIFY0(dsl_dir_hold_obj(dd->dd_pool, rddobj, NULL, FTAG, &rdd)); 3117 dsl_dir_name(rdd, encroot); 3118 dsl_dir_rele(rdd, FTAG); 3119 3120 if (!zdb_derive_key(dd, key)) 3121 fatal("couldn't derive encryption key"); 3122 3123 dsl_pool_config_exit(dp, FTAG); 3124 3125 ASSERT3U(dsl_dataset_get_keystatus(dd), ==, ZFS_KEYSTATUS_UNAVAILABLE); 3126 3127 dsl_crypto_params_t *dcp; 3128 nvlist_t *crypto_args; 3129 3130 crypto_args = fnvlist_alloc(); 3131 fnvlist_add_uint8_array(crypto_args, "wkeydata", 3132 (uint8_t *)key, WRAPPING_KEY_LEN); 3133 VERIFY0(dsl_crypto_params_create_nvlist(DCP_CMD_NONE, 3134 NULL, crypto_args, &dcp)); 3135 err = spa_keystore_load_wkey(encroot, dcp, B_FALSE); 3136 3137 dsl_crypto_params_free(dcp, (err != 0)); 3138 fnvlist_free(crypto_args); 3139 3140 if (err != 0) 3141 fatal( 3142 "couldn't load encryption key for %s: %s", 3143 encroot, err == ZFS_ERR_CRYPTO_NOTSUP ? 3144 "crypto params not supported" : strerror(err)); 3145 3146 ASSERT3U(dsl_dataset_get_keystatus(dd), ==, ZFS_KEYSTATUS_AVAILABLE); 3147 3148 printf("Unlocked encryption root: %s\n", encroot); 3149 key_loaded = B_TRUE; 3150} 3151 3152static void 3153zdb_unload_key(void) 3154{ 3155 if (!key_loaded) 3156 return; 3157 3158 VERIFY0(spa_keystore_unload_wkey(encroot)); 3159 key_loaded = B_FALSE; 3160} 3161 3162static avl_tree_t idx_tree; 3163static avl_tree_t domain_tree; 3164static boolean_t fuid_table_loaded; 3165static objset_t *sa_os = NULL; 3166static sa_attr_type_t *sa_attr_table = NULL; 3167 3168static int 3169open_objset(const char *path, const void *tag, objset_t **osp) 3170{ 3171 int err; 3172 uint64_t sa_attrs = 0; 3173 uint64_t version = 0; 3174 3175 VERIFY3P(sa_os, ==, NULL); 3176 3177 /* 3178 * We can't own an objset if it's redacted. Therefore, we do this 3179 * dance: hold the objset, then acquire a long hold on its dataset, then 3180 * release the pool (which is held as part of holding the objset). 3181 */ 3182 3183 if (dump_opt['K']) { 3184 /* decryption requested, try to load keys */ 3185 err = dmu_objset_hold(path, tag, osp); 3186 if (err != 0) { 3187 (void) fprintf(stderr, "failed to hold dataset " 3188 "'%s': %s\n", 3189 path, strerror(err)); 3190 return (err); 3191 } 3192 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag); 3193 dsl_pool_rele(dmu_objset_pool(*osp), tag); 3194 3195 /* succeeds or dies */ 3196 zdb_load_key(*osp); 3197 3198 /* release it all */ 3199 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag); 3200 dsl_dataset_rele(dmu_objset_ds(*osp), tag); 3201 } 3202 3203 int ds_hold_flags = key_loaded ? DS_HOLD_FLAG_DECRYPT : 0; 3204 3205 err = dmu_objset_hold_flags(path, ds_hold_flags, tag, osp); 3206 if (err != 0) { 3207 (void) fprintf(stderr, "failed to hold dataset '%s': %s\n", 3208 path, strerror(err)); 3209 return (err); 3210 } 3211 dsl_dataset_long_hold(dmu_objset_ds(*osp), tag); 3212 dsl_pool_rele(dmu_objset_pool(*osp), tag); 3213 3214 if (dmu_objset_type(*osp) == DMU_OST_ZFS && 3215 (key_loaded || !(*osp)->os_encrypted)) { 3216 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZPL_VERSION_STR, 3217 8, 1, &version); 3218 if (version >= ZPL_VERSION_SA) { 3219 (void) zap_lookup(*osp, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 3220 8, 1, &sa_attrs); 3221 } 3222 err = sa_setup(*osp, sa_attrs, zfs_attr_table, ZPL_END, 3223 &sa_attr_table); 3224 if (err != 0) { 3225 (void) fprintf(stderr, "sa_setup failed: %s\n", 3226 strerror(err)); 3227 dsl_dataset_long_rele(dmu_objset_ds(*osp), tag); 3228 dsl_dataset_rele_flags(dmu_objset_ds(*osp), 3229 ds_hold_flags, tag); 3230 *osp = NULL; 3231 } 3232 } 3233 sa_os = *osp; 3234 3235 return (err); 3236} 3237 3238static void 3239close_objset(objset_t *os, const void *tag) 3240{ 3241 VERIFY3P(os, ==, sa_os); 3242 if (os->os_sa != NULL) 3243 sa_tear_down(os); 3244 dsl_dataset_long_rele(dmu_objset_ds(os), tag); 3245 dsl_dataset_rele_flags(dmu_objset_ds(os), 3246 key_loaded ? DS_HOLD_FLAG_DECRYPT : 0, tag); 3247 sa_attr_table = NULL; 3248 sa_os = NULL; 3249 3250 zdb_unload_key(); 3251} 3252 3253static void 3254fuid_table_destroy(void) 3255{ 3256 if (fuid_table_loaded) { 3257 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 3258 fuid_table_loaded = B_FALSE; 3259 } 3260} 3261 3262static void 3263zdb_exit(int reason) 3264{ 3265 if (os != NULL) { 3266 close_objset(os, FTAG); 3267 } else if (spa != NULL) { 3268 spa_close(spa, FTAG); 3269 } 3270 3271 fuid_table_destroy(); 3272 3273 if (kernel_init_done) 3274 kernel_fini(); 3275 3276 exit(reason); 3277} 3278 3279/* 3280 * print uid or gid information. 3281 * For normal POSIX id just the id is printed in decimal format. 3282 * For CIFS files with FUID the fuid is printed in hex followed by 3283 * the domain-rid string. 3284 */ 3285static void 3286print_idstr(uint64_t id, const char *id_type) 3287{ 3288 if (FUID_INDEX(id)) { 3289 const char *domain = 3290 zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 3291 (void) printf("\t%s %llx [%s-%d]\n", id_type, 3292 (u_longlong_t)id, domain, (int)FUID_RID(id)); 3293 } else { 3294 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 3295 } 3296 3297} 3298 3299static void 3300dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 3301{ 3302 uint32_t uid_idx, gid_idx; 3303 3304 uid_idx = FUID_INDEX(uid); 3305 gid_idx = FUID_INDEX(gid); 3306 3307 /* Load domain table, if not already loaded */ 3308 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 3309 uint64_t fuid_obj; 3310 3311 /* first find the fuid object. It lives in the master node */ 3312 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 3313 8, 1, &fuid_obj) == 0); 3314 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 3315 (void) zfs_fuid_table_load(os, fuid_obj, 3316 &idx_tree, &domain_tree); 3317 fuid_table_loaded = B_TRUE; 3318 } 3319 3320 print_idstr(uid, "uid"); 3321 print_idstr(gid, "gid"); 3322} 3323 3324static void 3325dump_znode_sa_xattr(sa_handle_t *hdl) 3326{ 3327 nvlist_t *sa_xattr; 3328 nvpair_t *elem = NULL; 3329 int sa_xattr_size = 0; 3330 int sa_xattr_entries = 0; 3331 int error; 3332 char *sa_xattr_packed; 3333 3334 error = sa_size(hdl, sa_attr_table[ZPL_DXATTR], &sa_xattr_size); 3335 if (error || sa_xattr_size == 0) 3336 return; 3337 3338 sa_xattr_packed = malloc(sa_xattr_size); 3339 if (sa_xattr_packed == NULL) 3340 return; 3341 3342 error = sa_lookup(hdl, sa_attr_table[ZPL_DXATTR], 3343 sa_xattr_packed, sa_xattr_size); 3344 if (error) { 3345 free(sa_xattr_packed); 3346 return; 3347 } 3348 3349 error = nvlist_unpack(sa_xattr_packed, sa_xattr_size, &sa_xattr, 0); 3350 if (error) { 3351 free(sa_xattr_packed); 3352 return; 3353 } 3354 3355 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) 3356 sa_xattr_entries++; 3357 3358 (void) printf("\tSA xattrs: %d bytes, %d entries\n\n", 3359 sa_xattr_size, sa_xattr_entries); 3360 while ((elem = nvlist_next_nvpair(sa_xattr, elem)) != NULL) { 3361 boolean_t can_print = !dump_opt['P']; 3362 uchar_t *value; 3363 uint_t cnt, idx; 3364 3365 (void) printf("\t\t%s = ", nvpair_name(elem)); 3366 nvpair_value_byte_array(elem, &value, &cnt); 3367 3368 for (idx = 0; idx < cnt; ++idx) { 3369 if (!isprint(value[idx])) { 3370 can_print = B_FALSE; 3371 break; 3372 } 3373 } 3374 3375 for (idx = 0; idx < cnt; ++idx) { 3376 if (can_print) 3377 (void) putchar(value[idx]); 3378 else 3379 (void) printf("\\%3.3o", value[idx]); 3380 } 3381 (void) putchar('\n'); 3382 } 3383 3384 nvlist_free(sa_xattr); 3385 free(sa_xattr_packed); 3386} 3387 3388static void 3389dump_znode_symlink(sa_handle_t *hdl) 3390{ 3391 int sa_symlink_size = 0; 3392 char linktarget[MAXPATHLEN]; 3393 int error; 3394 3395 error = sa_size(hdl, sa_attr_table[ZPL_SYMLINK], &sa_symlink_size); 3396 if (error || sa_symlink_size == 0) { 3397 return; 3398 } 3399 if (sa_symlink_size >= sizeof (linktarget)) { 3400 (void) printf("symlink size %d is too large\n", 3401 sa_symlink_size); 3402 return; 3403 } 3404 linktarget[sa_symlink_size] = '\0'; 3405 if (sa_lookup(hdl, sa_attr_table[ZPL_SYMLINK], 3406 &linktarget, sa_symlink_size) == 0) 3407 (void) printf("\ttarget %s\n", linktarget); 3408} 3409 3410static void 3411dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 3412{ 3413 (void) data, (void) size; 3414 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 3415 sa_handle_t *hdl; 3416 uint64_t xattr, rdev, gen; 3417 uint64_t uid, gid, mode, fsize, parent, links; 3418 uint64_t pflags; 3419 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 3420 time_t z_crtime, z_atime, z_mtime, z_ctime; 3421 sa_bulk_attr_t bulk[12]; 3422 int idx = 0; 3423 int error; 3424 3425 VERIFY3P(os, ==, sa_os); 3426 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 3427 (void) printf("Failed to get handle for SA znode\n"); 3428 return; 3429 } 3430 3431 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 3432 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 3433 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 3434 &links, 8); 3435 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 3436 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 3437 &mode, 8); 3438 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 3439 NULL, &parent, 8); 3440 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 3441 &fsize, 8); 3442 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 3443 acctm, 16); 3444 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 3445 modtm, 16); 3446 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 3447 crtm, 16); 3448 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 3449 chgtm, 16); 3450 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 3451 &pflags, 8); 3452 3453 if (sa_bulk_lookup(hdl, bulk, idx)) { 3454 (void) sa_handle_destroy(hdl); 3455 return; 3456 } 3457 3458 z_crtime = (time_t)crtm[0]; 3459 z_atime = (time_t)acctm[0]; 3460 z_mtime = (time_t)modtm[0]; 3461 z_ctime = (time_t)chgtm[0]; 3462 3463 if (dump_opt['d'] > 4) { 3464 error = zfs_obj_to_path(os, object, path, sizeof (path)); 3465 if (error == ESTALE) { 3466 (void) snprintf(path, sizeof (path), "on delete queue"); 3467 } else if (error != 0) { 3468 leaked_objects++; 3469 (void) snprintf(path, sizeof (path), 3470 "path not found, possibly leaked"); 3471 } 3472 (void) printf("\tpath %s\n", path); 3473 } 3474 3475 if (S_ISLNK(mode)) 3476 dump_znode_symlink(hdl); 3477 dump_uidgid(os, uid, gid); 3478 (void) printf("\tatime %s", ctime(&z_atime)); 3479 (void) printf("\tmtime %s", ctime(&z_mtime)); 3480 (void) printf("\tctime %s", ctime(&z_ctime)); 3481 (void) printf("\tcrtime %s", ctime(&z_crtime)); 3482 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 3483 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 3484 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 3485 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 3486 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 3487 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 3488 if (dmu_objset_projectquota_enabled(os) && (pflags & ZFS_PROJID)) { 3489 uint64_t projid; 3490 3491 if (sa_lookup(hdl, sa_attr_table[ZPL_PROJID], &projid, 3492 sizeof (uint64_t)) == 0) 3493 (void) printf("\tprojid %llu\n", (u_longlong_t)projid); 3494 } 3495 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 3496 sizeof (uint64_t)) == 0) 3497 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 3498 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 3499 sizeof (uint64_t)) == 0) 3500 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 3501 dump_znode_sa_xattr(hdl); 3502 sa_handle_destroy(hdl); 3503} 3504 3505static void 3506dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 3507{ 3508 (void) os, (void) object, (void) data, (void) size; 3509} 3510 3511static void 3512dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 3513{ 3514 (void) os, (void) object, (void) data, (void) size; 3515} 3516 3517static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 3518 dump_none, /* unallocated */ 3519 dump_zap, /* object directory */ 3520 dump_uint64, /* object array */ 3521 dump_none, /* packed nvlist */ 3522 dump_packed_nvlist, /* packed nvlist size */ 3523 dump_none, /* bpobj */ 3524 dump_bpobj, /* bpobj header */ 3525 dump_none, /* SPA space map header */ 3526 dump_none, /* SPA space map */ 3527 dump_none, /* ZIL intent log */ 3528 dump_dnode, /* DMU dnode */ 3529 dump_dmu_objset, /* DMU objset */ 3530 dump_dsl_dir, /* DSL directory */ 3531 dump_zap, /* DSL directory child map */ 3532 dump_zap, /* DSL dataset snap map */ 3533 dump_zap, /* DSL props */ 3534 dump_dsl_dataset, /* DSL dataset */ 3535 dump_znode, /* ZFS znode */ 3536 dump_acl, /* ZFS V0 ACL */ 3537 dump_uint8, /* ZFS plain file */ 3538 dump_zpldir, /* ZFS directory */ 3539 dump_zap, /* ZFS master node */ 3540 dump_zap, /* ZFS delete queue */ 3541 dump_uint8, /* zvol object */ 3542 dump_zap, /* zvol prop */ 3543 dump_uint8, /* other uint8[] */ 3544 dump_uint64, /* other uint64[] */ 3545 dump_zap, /* other ZAP */ 3546 dump_zap, /* persistent error log */ 3547 dump_uint8, /* SPA history */ 3548 dump_history_offsets, /* SPA history offsets */ 3549 dump_zap, /* Pool properties */ 3550 dump_zap, /* DSL permissions */ 3551 dump_acl, /* ZFS ACL */ 3552 dump_uint8, /* ZFS SYSACL */ 3553 dump_none, /* FUID nvlist */ 3554 dump_packed_nvlist, /* FUID nvlist size */ 3555 dump_zap, /* DSL dataset next clones */ 3556 dump_zap, /* DSL scrub queue */ 3557 dump_zap, /* ZFS user/group/project used */ 3558 dump_zap, /* ZFS user/group/project quota */ 3559 dump_zap, /* snapshot refcount tags */ 3560 dump_ddt_zap, /* DDT ZAP object */ 3561 dump_zap, /* DDT statistics */ 3562 dump_znode, /* SA object */ 3563 dump_zap, /* SA Master Node */ 3564 dump_sa_attrs, /* SA attribute registration */ 3565 dump_sa_layouts, /* SA attribute layouts */ 3566 dump_zap, /* DSL scrub translations */ 3567 dump_none, /* fake dedup BP */ 3568 dump_zap, /* deadlist */ 3569 dump_none, /* deadlist hdr */ 3570 dump_zap, /* dsl clones */ 3571 dump_bpobj_subobjs, /* bpobj subobjs */ 3572 dump_unknown, /* Unknown type, must be last */ 3573}; 3574 3575static boolean_t 3576match_object_type(dmu_object_type_t obj_type, uint64_t flags) 3577{ 3578 boolean_t match = B_TRUE; 3579 3580 switch (obj_type) { 3581 case DMU_OT_DIRECTORY_CONTENTS: 3582 if (!(flags & ZOR_FLAG_DIRECTORY)) 3583 match = B_FALSE; 3584 break; 3585 case DMU_OT_PLAIN_FILE_CONTENTS: 3586 if (!(flags & ZOR_FLAG_PLAIN_FILE)) 3587 match = B_FALSE; 3588 break; 3589 case DMU_OT_SPACE_MAP: 3590 if (!(flags & ZOR_FLAG_SPACE_MAP)) 3591 match = B_FALSE; 3592 break; 3593 default: 3594 if (strcmp(zdb_ot_name(obj_type), "zap") == 0) { 3595 if (!(flags & ZOR_FLAG_ZAP)) 3596 match = B_FALSE; 3597 break; 3598 } 3599 3600 /* 3601 * If all bits except some of the supported flags are 3602 * set, the user combined the all-types flag (A) with 3603 * a negated flag to exclude some types (e.g. A-f to 3604 * show all object types except plain files). 3605 */ 3606 if ((flags | ZOR_SUPPORTED_FLAGS) != ZOR_FLAG_ALL_TYPES) 3607 match = B_FALSE; 3608 3609 break; 3610 } 3611 3612 return (match); 3613} 3614 3615static void 3616dump_object(objset_t *os, uint64_t object, int verbosity, 3617 boolean_t *print_header, uint64_t *dnode_slots_used, uint64_t flags) 3618{ 3619 dmu_buf_t *db = NULL; 3620 dmu_object_info_t doi; 3621 dnode_t *dn; 3622 boolean_t dnode_held = B_FALSE; 3623 void *bonus = NULL; 3624 size_t bsize = 0; 3625 char iblk[32], dblk[32], lsize[32], asize[32], fill[32], dnsize[32]; 3626 char bonus_size[32]; 3627 char aux[50]; 3628 int error; 3629 3630 /* make sure nicenum has enough space */ 3631 _Static_assert(sizeof (iblk) >= NN_NUMBUF_SZ, "iblk truncated"); 3632 _Static_assert(sizeof (dblk) >= NN_NUMBUF_SZ, "dblk truncated"); 3633 _Static_assert(sizeof (lsize) >= NN_NUMBUF_SZ, "lsize truncated"); 3634 _Static_assert(sizeof (asize) >= NN_NUMBUF_SZ, "asize truncated"); 3635 _Static_assert(sizeof (bonus_size) >= NN_NUMBUF_SZ, 3636 "bonus_size truncated"); 3637 3638 if (*print_header) { 3639 (void) printf("\n%10s %3s %5s %5s %5s %6s %5s %6s %s\n", 3640 "Object", "lvl", "iblk", "dblk", "dsize", "dnsize", 3641 "lsize", "%full", "type"); 3642 *print_header = 0; 3643 } 3644 3645 if (object == 0) { 3646 dn = DMU_META_DNODE(os); 3647 dmu_object_info_from_dnode(dn, &doi); 3648 } else { 3649 /* 3650 * Encrypted datasets will have sensitive bonus buffers 3651 * encrypted. Therefore we cannot hold the bonus buffer and 3652 * must hold the dnode itself instead. 3653 */ 3654 error = dmu_object_info(os, object, &doi); 3655 if (error) 3656 fatal("dmu_object_info() failed, errno %u", error); 3657 3658 if (!key_loaded && os->os_encrypted && 3659 DMU_OT_IS_ENCRYPTED(doi.doi_bonus_type)) { 3660 error = dnode_hold(os, object, FTAG, &dn); 3661 if (error) 3662 fatal("dnode_hold() failed, errno %u", error); 3663 dnode_held = B_TRUE; 3664 } else { 3665 error = dmu_bonus_hold(os, object, FTAG, &db); 3666 if (error) 3667 fatal("dmu_bonus_hold(%llu) failed, errno %u", 3668 object, error); 3669 bonus = db->db_data; 3670 bsize = db->db_size; 3671 dn = DB_DNODE((dmu_buf_impl_t *)db); 3672 } 3673 } 3674 3675 /* 3676 * Default to showing all object types if no flags were specified. 3677 */ 3678 if (flags != 0 && flags != ZOR_FLAG_ALL_TYPES && 3679 !match_object_type(doi.doi_type, flags)) 3680 goto out; 3681 3682 if (dnode_slots_used) 3683 *dnode_slots_used = doi.doi_dnodesize / DNODE_MIN_SIZE; 3684 3685 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 3686 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 3687 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 3688 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 3689 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 3690 zdb_nicenum(doi.doi_dnodesize, dnsize, sizeof (dnsize)); 3691 (void) snprintf(fill, sizeof (fill), "%6.2f", 100.0 * 3692 doi.doi_fill_count * doi.doi_data_block_size / (object == 0 ? 3693 DNODES_PER_BLOCK : 1) / doi.doi_max_offset); 3694 3695 aux[0] = '\0'; 3696 3697 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 3698 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3699 " (K=%s)", ZDB_CHECKSUM_NAME(doi.doi_checksum)); 3700 } 3701 3702 if (doi.doi_compress == ZIO_COMPRESS_INHERIT && 3703 ZIO_COMPRESS_HASLEVEL(os->os_compress) && verbosity >= 6) { 3704 const char *compname = NULL; 3705 if (zfs_prop_index_to_string(ZFS_PROP_COMPRESSION, 3706 ZIO_COMPRESS_RAW(os->os_compress, os->os_complevel), 3707 &compname) == 0) { 3708 (void) snprintf(aux + strlen(aux), 3709 sizeof (aux) - strlen(aux), " (Z=inherit=%s)", 3710 compname); 3711 } else { 3712 (void) snprintf(aux + strlen(aux), 3713 sizeof (aux) - strlen(aux), 3714 " (Z=inherit=%s-unknown)", 3715 ZDB_COMPRESS_NAME(os->os_compress)); 3716 } 3717 } else if (doi.doi_compress == ZIO_COMPRESS_INHERIT && verbosity >= 6) { 3718 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3719 " (Z=inherit=%s)", ZDB_COMPRESS_NAME(os->os_compress)); 3720 } else if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 3721 (void) snprintf(aux + strlen(aux), sizeof (aux) - strlen(aux), 3722 " (Z=%s)", ZDB_COMPRESS_NAME(doi.doi_compress)); 3723 } 3724 3725 (void) printf("%10lld %3u %5s %5s %5s %6s %5s %6s %s%s\n", 3726 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 3727 asize, dnsize, lsize, fill, zdb_ot_name(doi.doi_type), aux); 3728 3729 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 3730 (void) printf("%10s %3s %5s %5s %5s %5s %5s %6s %s\n", 3731 "", "", "", "", "", "", bonus_size, "bonus", 3732 zdb_ot_name(doi.doi_bonus_type)); 3733 } 3734 3735 if (verbosity >= 4) { 3736 (void) printf("\tdnode flags: %s%s%s%s\n", 3737 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 3738 "USED_BYTES " : "", 3739 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 3740 "USERUSED_ACCOUNTED " : "", 3741 (dn->dn_phys->dn_flags & DNODE_FLAG_USEROBJUSED_ACCOUNTED) ? 3742 "USEROBJUSED_ACCOUNTED " : "", 3743 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 3744 "SPILL_BLKPTR" : ""); 3745 (void) printf("\tdnode maxblkid: %llu\n", 3746 (longlong_t)dn->dn_phys->dn_maxblkid); 3747 3748 if (!dnode_held) { 3749 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, 3750 object, bonus, bsize); 3751 } else { 3752 (void) printf("\t\t(bonus encrypted)\n"); 3753 } 3754 3755 if (key_loaded || 3756 (!os->os_encrypted || !DMU_OT_IS_ENCRYPTED(doi.doi_type))) { 3757 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, 3758 NULL, 0); 3759 } else { 3760 (void) printf("\t\t(object encrypted)\n"); 3761 } 3762 3763 *print_header = B_TRUE; 3764 } 3765 3766 if (verbosity >= 5) { 3767 if (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) { 3768 char blkbuf[BP_SPRINTF_LEN]; 3769 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), 3770 DN_SPILL_BLKPTR(dn->dn_phys), B_FALSE); 3771 (void) printf("\nSpill block: %s\n", blkbuf); 3772 } 3773 dump_indirect(dn); 3774 } 3775 3776 if (verbosity >= 5) { 3777 /* 3778 * Report the list of segments that comprise the object. 3779 */ 3780 uint64_t start = 0; 3781 uint64_t end; 3782 uint64_t blkfill = 1; 3783 int minlvl = 1; 3784 3785 if (dn->dn_type == DMU_OT_DNODE) { 3786 minlvl = 0; 3787 blkfill = DNODES_PER_BLOCK; 3788 } 3789 3790 for (;;) { 3791 char segsize[32]; 3792 /* make sure nicenum has enough space */ 3793 _Static_assert(sizeof (segsize) >= NN_NUMBUF_SZ, 3794 "segsize truncated"); 3795 error = dnode_next_offset(dn, 3796 0, &start, minlvl, blkfill, 0); 3797 if (error) 3798 break; 3799 end = start; 3800 error = dnode_next_offset(dn, 3801 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 3802 zdb_nicenum(end - start, segsize, sizeof (segsize)); 3803 (void) printf("\t\tsegment [%016llx, %016llx)" 3804 " size %5s\n", (u_longlong_t)start, 3805 (u_longlong_t)end, segsize); 3806 if (error) 3807 break; 3808 start = end; 3809 } 3810 } 3811 3812out: 3813 if (db != NULL) 3814 dmu_buf_rele(db, FTAG); 3815 if (dnode_held) 3816 dnode_rele(dn, FTAG); 3817} 3818 3819static void 3820count_dir_mos_objects(dsl_dir_t *dd) 3821{ 3822 mos_obj_refd(dd->dd_object); 3823 mos_obj_refd(dsl_dir_phys(dd)->dd_child_dir_zapobj); 3824 mos_obj_refd(dsl_dir_phys(dd)->dd_deleg_zapobj); 3825 mos_obj_refd(dsl_dir_phys(dd)->dd_props_zapobj); 3826 mos_obj_refd(dsl_dir_phys(dd)->dd_clones); 3827 3828 /* 3829 * The dd_crypto_obj can be referenced by multiple dsl_dir's. 3830 * Ignore the references after the first one. 3831 */ 3832 mos_obj_refd_multiple(dd->dd_crypto_obj); 3833} 3834 3835static void 3836count_ds_mos_objects(dsl_dataset_t *ds) 3837{ 3838 mos_obj_refd(ds->ds_object); 3839 mos_obj_refd(dsl_dataset_phys(ds)->ds_next_clones_obj); 3840 mos_obj_refd(dsl_dataset_phys(ds)->ds_props_obj); 3841 mos_obj_refd(dsl_dataset_phys(ds)->ds_userrefs_obj); 3842 mos_obj_refd(dsl_dataset_phys(ds)->ds_snapnames_zapobj); 3843 mos_obj_refd(ds->ds_bookmarks_obj); 3844 3845 if (!dsl_dataset_is_snapshot(ds)) { 3846 count_dir_mos_objects(ds->ds_dir); 3847 } 3848} 3849 3850static const char *const objset_types[DMU_OST_NUMTYPES] = { 3851 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 3852 3853/* 3854 * Parse a string denoting a range of object IDs of the form 3855 * <start>[:<end>[:flags]], and store the results in zor. 3856 * Return 0 on success. On error, return 1 and update the msg 3857 * pointer to point to a descriptive error message. 3858 */ 3859static int 3860parse_object_range(char *range, zopt_object_range_t *zor, const char **msg) 3861{ 3862 uint64_t flags = 0; 3863 char *p, *s, *dup, *flagstr, *tmp = NULL; 3864 size_t len; 3865 int i; 3866 int rc = 0; 3867 3868 if (strchr(range, ':') == NULL) { 3869 zor->zor_obj_start = strtoull(range, &p, 0); 3870 if (*p != '\0') { 3871 *msg = "Invalid characters in object ID"; 3872 rc = 1; 3873 } 3874 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3875 zor->zor_obj_end = zor->zor_obj_start; 3876 return (rc); 3877 } 3878 3879 if (strchr(range, ':') == range) { 3880 *msg = "Invalid leading colon"; 3881 rc = 1; 3882 return (rc); 3883 } 3884 3885 len = strlen(range); 3886 if (range[len - 1] == ':') { 3887 *msg = "Invalid trailing colon"; 3888 rc = 1; 3889 return (rc); 3890 } 3891 3892 dup = strdup(range); 3893 s = strtok_r(dup, ":", &tmp); 3894 zor->zor_obj_start = strtoull(s, &p, 0); 3895 3896 if (*p != '\0') { 3897 *msg = "Invalid characters in start object ID"; 3898 rc = 1; 3899 goto out; 3900 } 3901 3902 s = strtok_r(NULL, ":", &tmp); 3903 zor->zor_obj_end = strtoull(s, &p, 0); 3904 3905 if (*p != '\0') { 3906 *msg = "Invalid characters in end object ID"; 3907 rc = 1; 3908 goto out; 3909 } 3910 3911 if (zor->zor_obj_start > zor->zor_obj_end) { 3912 *msg = "Start object ID may not exceed end object ID"; 3913 rc = 1; 3914 goto out; 3915 } 3916 3917 s = strtok_r(NULL, ":", &tmp); 3918 if (s == NULL) { 3919 zor->zor_flags = ZOR_FLAG_ALL_TYPES; 3920 goto out; 3921 } else if (strtok_r(NULL, ":", &tmp) != NULL) { 3922 *msg = "Invalid colon-delimited field after flags"; 3923 rc = 1; 3924 goto out; 3925 } 3926 3927 flagstr = s; 3928 for (i = 0; flagstr[i]; i++) { 3929 int bit; 3930 boolean_t negation = (flagstr[i] == '-'); 3931 3932 if (negation) { 3933 i++; 3934 if (flagstr[i] == '\0') { 3935 *msg = "Invalid trailing negation operator"; 3936 rc = 1; 3937 goto out; 3938 } 3939 } 3940 bit = flagbits[(uchar_t)flagstr[i]]; 3941 if (bit == 0) { 3942 *msg = "Invalid flag"; 3943 rc = 1; 3944 goto out; 3945 } 3946 if (negation) 3947 flags &= ~bit; 3948 else 3949 flags |= bit; 3950 } 3951 zor->zor_flags = flags; 3952 3953 zor->zor_obj_start = ZDB_MAP_OBJECT_ID(zor->zor_obj_start); 3954 zor->zor_obj_end = ZDB_MAP_OBJECT_ID(zor->zor_obj_end); 3955 3956out: 3957 free(dup); 3958 return (rc); 3959} 3960 3961static void 3962dump_objset(objset_t *os) 3963{ 3964 dmu_objset_stats_t dds = { 0 }; 3965 uint64_t object, object_count; 3966 uint64_t refdbytes, usedobjs, scratch; 3967 char numbuf[32]; 3968 char blkbuf[BP_SPRINTF_LEN + 20]; 3969 char osname[ZFS_MAX_DATASET_NAME_LEN]; 3970 const char *type = "UNKNOWN"; 3971 int verbosity = dump_opt['d']; 3972 boolean_t print_header; 3973 unsigned i; 3974 int error; 3975 uint64_t total_slots_used = 0; 3976 uint64_t max_slot_used = 0; 3977 uint64_t dnode_slots; 3978 uint64_t obj_start; 3979 uint64_t obj_end; 3980 uint64_t flags; 3981 3982 /* make sure nicenum has enough space */ 3983 _Static_assert(sizeof (numbuf) >= NN_NUMBUF_SZ, "numbuf truncated"); 3984 3985 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 3986 dmu_objset_fast_stat(os, &dds); 3987 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 3988 3989 print_header = B_TRUE; 3990 3991 if (dds.dds_type < DMU_OST_NUMTYPES) 3992 type = objset_types[dds.dds_type]; 3993 3994 if (dds.dds_type == DMU_OST_META) { 3995 dds.dds_creation_txg = TXG_INITIAL; 3996 usedobjs = BP_GET_FILL(os->os_rootbp); 3997 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 3998 dd_used_bytes; 3999 } else { 4000 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 4001 } 4002 4003 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 4004 4005 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 4006 4007 if (verbosity >= 4) { 4008 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 4009 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 4010 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 4011 } else { 4012 blkbuf[0] = '\0'; 4013 } 4014 4015 dmu_objset_name(os, osname); 4016 4017 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 4018 "%s, %llu objects%s%s\n", 4019 osname, type, (u_longlong_t)dmu_objset_id(os), 4020 (u_longlong_t)dds.dds_creation_txg, 4021 numbuf, (u_longlong_t)usedobjs, blkbuf, 4022 (dds.dds_inconsistent) ? " (inconsistent)" : ""); 4023 4024 for (i = 0; i < zopt_object_args; i++) { 4025 obj_start = zopt_object_ranges[i].zor_obj_start; 4026 obj_end = zopt_object_ranges[i].zor_obj_end; 4027 flags = zopt_object_ranges[i].zor_flags; 4028 4029 object = obj_start; 4030 if (object == 0 || obj_start == obj_end) 4031 dump_object(os, object, verbosity, &print_header, NULL, 4032 flags); 4033 else 4034 object--; 4035 4036 while ((dmu_object_next(os, &object, B_FALSE, 0) == 0) && 4037 object <= obj_end) { 4038 dump_object(os, object, verbosity, &print_header, NULL, 4039 flags); 4040 } 4041 } 4042 4043 if (zopt_object_args > 0) { 4044 (void) printf("\n"); 4045 return; 4046 } 4047 4048 if (dump_opt['i'] != 0 || verbosity >= 2) 4049 dump_intent_log(dmu_objset_zil(os)); 4050 4051 if (dmu_objset_ds(os) != NULL) { 4052 dsl_dataset_t *ds = dmu_objset_ds(os); 4053 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 4054 if (dsl_deadlist_is_open(&ds->ds_dir->dd_livelist) && 4055 !dmu_objset_is_snapshot(os)) { 4056 dump_blkptr_list(&ds->ds_dir->dd_livelist, "Livelist"); 4057 if (verify_dd_livelist(os) != 0) 4058 fatal("livelist is incorrect"); 4059 } 4060 4061 if (dsl_dataset_remap_deadlist_exists(ds)) { 4062 (void) printf("ds_remap_deadlist:\n"); 4063 dump_blkptr_list(&ds->ds_remap_deadlist, "Deadlist"); 4064 } 4065 count_ds_mos_objects(ds); 4066 } 4067 4068 if (dmu_objset_ds(os) != NULL) 4069 dump_bookmarks(os, verbosity); 4070 4071 if (verbosity < 2) 4072 return; 4073 4074 if (BP_IS_HOLE(os->os_rootbp)) 4075 return; 4076 4077 dump_object(os, 0, verbosity, &print_header, NULL, 0); 4078 object_count = 0; 4079 if (DMU_USERUSED_DNODE(os) != NULL && 4080 DMU_USERUSED_DNODE(os)->dn_type != 0) { 4081 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header, 4082 NULL, 0); 4083 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header, 4084 NULL, 0); 4085 } 4086 4087 if (DMU_PROJECTUSED_DNODE(os) != NULL && 4088 DMU_PROJECTUSED_DNODE(os)->dn_type != 0) 4089 dump_object(os, DMU_PROJECTUSED_OBJECT, verbosity, 4090 &print_header, NULL, 0); 4091 4092 object = 0; 4093 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 4094 dump_object(os, object, verbosity, &print_header, &dnode_slots, 4095 0); 4096 object_count++; 4097 total_slots_used += dnode_slots; 4098 max_slot_used = object + dnode_slots - 1; 4099 } 4100 4101 (void) printf("\n"); 4102 4103 (void) printf(" Dnode slots:\n"); 4104 (void) printf("\tTotal used: %10llu\n", 4105 (u_longlong_t)total_slots_used); 4106 (void) printf("\tMax used: %10llu\n", 4107 (u_longlong_t)max_slot_used); 4108 (void) printf("\tPercent empty: %10lf\n", 4109 (double)(max_slot_used - total_slots_used)*100 / 4110 (double)max_slot_used); 4111 (void) printf("\n"); 4112 4113 if (error != ESRCH) { 4114 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 4115 abort(); 4116 } 4117 4118 ASSERT3U(object_count, ==, usedobjs); 4119 4120 if (leaked_objects != 0) { 4121 (void) printf("%d potentially leaked objects detected\n", 4122 leaked_objects); 4123 leaked_objects = 0; 4124 } 4125} 4126 4127static void 4128dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 4129{ 4130 time_t timestamp = ub->ub_timestamp; 4131 4132 (void) printf("%s", header ? header : ""); 4133 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 4134 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 4135 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 4136 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 4137 (void) printf("\ttimestamp = %llu UTC = %s", 4138 (u_longlong_t)ub->ub_timestamp, ctime(×tamp)); 4139 4140 (void) printf("\tmmp_magic = %016llx\n", 4141 (u_longlong_t)ub->ub_mmp_magic); 4142 if (MMP_VALID(ub)) { 4143 (void) printf("\tmmp_delay = %0llu\n", 4144 (u_longlong_t)ub->ub_mmp_delay); 4145 if (MMP_SEQ_VALID(ub)) 4146 (void) printf("\tmmp_seq = %u\n", 4147 (unsigned int) MMP_SEQ(ub)); 4148 if (MMP_FAIL_INT_VALID(ub)) 4149 (void) printf("\tmmp_fail = %u\n", 4150 (unsigned int) MMP_FAIL_INT(ub)); 4151 if (MMP_INTERVAL_VALID(ub)) 4152 (void) printf("\tmmp_write = %u\n", 4153 (unsigned int) MMP_INTERVAL(ub)); 4154 /* After MMP_* to make summarize_uberblock_mmp cleaner */ 4155 (void) printf("\tmmp_valid = %x\n", 4156 (unsigned int) ub->ub_mmp_config & 0xFF); 4157 } 4158 4159 if (dump_opt['u'] >= 4) { 4160 char blkbuf[BP_SPRINTF_LEN]; 4161 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 4162 (void) printf("\trootbp = %s\n", blkbuf); 4163 } 4164 (void) printf("\tcheckpoint_txg = %llu\n", 4165 (u_longlong_t)ub->ub_checkpoint_txg); 4166 4167 (void) printf("\traidz_reflow state=%u off=%llu\n", 4168 (int)RRSS_GET_STATE(ub), 4169 (u_longlong_t)RRSS_GET_OFFSET(ub)); 4170 4171 (void) printf("%s", footer ? footer : ""); 4172} 4173 4174static void 4175dump_config(spa_t *spa) 4176{ 4177 dmu_buf_t *db; 4178 size_t nvsize = 0; 4179 int error = 0; 4180 4181 4182 error = dmu_bonus_hold(spa->spa_meta_objset, 4183 spa->spa_config_object, FTAG, &db); 4184 4185 if (error == 0) { 4186 nvsize = *(uint64_t *)db->db_data; 4187 dmu_buf_rele(db, FTAG); 4188 4189 (void) printf("\nMOS Configuration:\n"); 4190 dump_packed_nvlist(spa->spa_meta_objset, 4191 spa->spa_config_object, (void *)&nvsize, 1); 4192 } else { 4193 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 4194 (u_longlong_t)spa->spa_config_object, error); 4195 } 4196} 4197 4198static void 4199dump_cachefile(const char *cachefile) 4200{ 4201 int fd; 4202 struct stat64 statbuf; 4203 char *buf; 4204 nvlist_t *config; 4205 4206 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 4207 (void) printf("cannot open '%s': %s\n", cachefile, 4208 strerror(errno)); 4209 zdb_exit(1); 4210 } 4211 4212 if (fstat64(fd, &statbuf) != 0) { 4213 (void) printf("failed to stat '%s': %s\n", cachefile, 4214 strerror(errno)); 4215 zdb_exit(1); 4216 } 4217 4218 if ((buf = malloc(statbuf.st_size)) == NULL) { 4219 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 4220 (u_longlong_t)statbuf.st_size); 4221 zdb_exit(1); 4222 } 4223 4224 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 4225 (void) fprintf(stderr, "failed to read %llu bytes\n", 4226 (u_longlong_t)statbuf.st_size); 4227 zdb_exit(1); 4228 } 4229 4230 (void) close(fd); 4231 4232 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 4233 (void) fprintf(stderr, "failed to unpack nvlist\n"); 4234 zdb_exit(1); 4235 } 4236 4237 free(buf); 4238 4239 dump_nvlist(config, 0); 4240 4241 nvlist_free(config); 4242} 4243 4244/* 4245 * ZFS label nvlist stats 4246 */ 4247typedef struct zdb_nvl_stats { 4248 int zns_list_count; 4249 int zns_leaf_count; 4250 size_t zns_leaf_largest; 4251 size_t zns_leaf_total; 4252 nvlist_t *zns_string; 4253 nvlist_t *zns_uint64; 4254 nvlist_t *zns_boolean; 4255} zdb_nvl_stats_t; 4256 4257static void 4258collect_nvlist_stats(nvlist_t *nvl, zdb_nvl_stats_t *stats) 4259{ 4260 nvlist_t *list, **array; 4261 nvpair_t *nvp = NULL; 4262 const char *name; 4263 uint_t i, items; 4264 4265 stats->zns_list_count++; 4266 4267 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4268 name = nvpair_name(nvp); 4269 4270 switch (nvpair_type(nvp)) { 4271 case DATA_TYPE_STRING: 4272 fnvlist_add_string(stats->zns_string, name, 4273 fnvpair_value_string(nvp)); 4274 break; 4275 case DATA_TYPE_UINT64: 4276 fnvlist_add_uint64(stats->zns_uint64, name, 4277 fnvpair_value_uint64(nvp)); 4278 break; 4279 case DATA_TYPE_BOOLEAN: 4280 fnvlist_add_boolean(stats->zns_boolean, name); 4281 break; 4282 case DATA_TYPE_NVLIST: 4283 if (nvpair_value_nvlist(nvp, &list) == 0) 4284 collect_nvlist_stats(list, stats); 4285 break; 4286 case DATA_TYPE_NVLIST_ARRAY: 4287 if (nvpair_value_nvlist_array(nvp, &array, &items) != 0) 4288 break; 4289 4290 for (i = 0; i < items; i++) { 4291 collect_nvlist_stats(array[i], stats); 4292 4293 /* collect stats on leaf vdev */ 4294 if (strcmp(name, "children") == 0) { 4295 size_t size; 4296 4297 (void) nvlist_size(array[i], &size, 4298 NV_ENCODE_XDR); 4299 stats->zns_leaf_total += size; 4300 if (size > stats->zns_leaf_largest) 4301 stats->zns_leaf_largest = size; 4302 stats->zns_leaf_count++; 4303 } 4304 } 4305 break; 4306 default: 4307 (void) printf("skip type %d!\n", (int)nvpair_type(nvp)); 4308 } 4309 } 4310} 4311 4312static void 4313dump_nvlist_stats(nvlist_t *nvl, size_t cap) 4314{ 4315 zdb_nvl_stats_t stats = { 0 }; 4316 size_t size, sum = 0, total; 4317 size_t noise; 4318 4319 /* requires nvlist with non-unique names for stat collection */ 4320 VERIFY0(nvlist_alloc(&stats.zns_string, 0, 0)); 4321 VERIFY0(nvlist_alloc(&stats.zns_uint64, 0, 0)); 4322 VERIFY0(nvlist_alloc(&stats.zns_boolean, 0, 0)); 4323 VERIFY0(nvlist_size(stats.zns_boolean, &noise, NV_ENCODE_XDR)); 4324 4325 (void) printf("\n\nZFS Label NVList Config Stats:\n"); 4326 4327 VERIFY0(nvlist_size(nvl, &total, NV_ENCODE_XDR)); 4328 (void) printf(" %d bytes used, %d bytes free (using %4.1f%%)\n\n", 4329 (int)total, (int)(cap - total), 100.0 * total / cap); 4330 4331 collect_nvlist_stats(nvl, &stats); 4332 4333 VERIFY0(nvlist_size(stats.zns_uint64, &size, NV_ENCODE_XDR)); 4334 size -= noise; 4335 sum += size; 4336 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "integers:", 4337 (int)fnvlist_num_pairs(stats.zns_uint64), 4338 (int)size, 100.0 * size / total); 4339 4340 VERIFY0(nvlist_size(stats.zns_string, &size, NV_ENCODE_XDR)); 4341 size -= noise; 4342 sum += size; 4343 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "strings:", 4344 (int)fnvlist_num_pairs(stats.zns_string), 4345 (int)size, 100.0 * size / total); 4346 4347 VERIFY0(nvlist_size(stats.zns_boolean, &size, NV_ENCODE_XDR)); 4348 size -= noise; 4349 sum += size; 4350 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n", "booleans:", 4351 (int)fnvlist_num_pairs(stats.zns_boolean), 4352 (int)size, 100.0 * size / total); 4353 4354 size = total - sum; /* treat remainder as nvlist overhead */ 4355 (void) printf("%12s %4d %6d bytes (%5.2f%%)\n\n", "nvlists:", 4356 stats.zns_list_count, (int)size, 100.0 * size / total); 4357 4358 if (stats.zns_leaf_count > 0) { 4359 size_t average = stats.zns_leaf_total / stats.zns_leaf_count; 4360 4361 (void) printf("%12s %4d %6d bytes average\n", "leaf vdevs:", 4362 stats.zns_leaf_count, (int)average); 4363 (void) printf("%24d bytes largest\n", 4364 (int)stats.zns_leaf_largest); 4365 4366 if (dump_opt['l'] >= 3 && average > 0) 4367 (void) printf(" space for %d additional leaf vdevs\n", 4368 (int)((cap - total) / average)); 4369 } 4370 (void) printf("\n"); 4371 4372 nvlist_free(stats.zns_string); 4373 nvlist_free(stats.zns_uint64); 4374 nvlist_free(stats.zns_boolean); 4375} 4376 4377typedef struct cksum_record { 4378 zio_cksum_t cksum; 4379 boolean_t labels[VDEV_LABELS]; 4380 avl_node_t link; 4381} cksum_record_t; 4382 4383static int 4384cksum_record_compare(const void *x1, const void *x2) 4385{ 4386 const cksum_record_t *l = (cksum_record_t *)x1; 4387 const cksum_record_t *r = (cksum_record_t *)x2; 4388 int arraysize = ARRAY_SIZE(l->cksum.zc_word); 4389 int difference = 0; 4390 4391 for (int i = 0; i < arraysize; i++) { 4392 difference = TREE_CMP(l->cksum.zc_word[i], r->cksum.zc_word[i]); 4393 if (difference) 4394 break; 4395 } 4396 4397 return (difference); 4398} 4399 4400static cksum_record_t * 4401cksum_record_alloc(zio_cksum_t *cksum, int l) 4402{ 4403 cksum_record_t *rec; 4404 4405 rec = umem_zalloc(sizeof (*rec), UMEM_NOFAIL); 4406 rec->cksum = *cksum; 4407 rec->labels[l] = B_TRUE; 4408 4409 return (rec); 4410} 4411 4412static cksum_record_t * 4413cksum_record_lookup(avl_tree_t *tree, zio_cksum_t *cksum) 4414{ 4415 cksum_record_t lookup = { .cksum = *cksum }; 4416 avl_index_t where; 4417 4418 return (avl_find(tree, &lookup, &where)); 4419} 4420 4421static cksum_record_t * 4422cksum_record_insert(avl_tree_t *tree, zio_cksum_t *cksum, int l) 4423{ 4424 cksum_record_t *rec; 4425 4426 rec = cksum_record_lookup(tree, cksum); 4427 if (rec) { 4428 rec->labels[l] = B_TRUE; 4429 } else { 4430 rec = cksum_record_alloc(cksum, l); 4431 avl_add(tree, rec); 4432 } 4433 4434 return (rec); 4435} 4436 4437static int 4438first_label(cksum_record_t *rec) 4439{ 4440 for (int i = 0; i < VDEV_LABELS; i++) 4441 if (rec->labels[i]) 4442 return (i); 4443 4444 return (-1); 4445} 4446 4447static void 4448print_label_numbers(const char *prefix, const cksum_record_t *rec) 4449{ 4450 fputs(prefix, stdout); 4451 for (int i = 0; i < VDEV_LABELS; i++) 4452 if (rec->labels[i] == B_TRUE) 4453 printf("%d ", i); 4454 putchar('\n'); 4455} 4456 4457#define MAX_UBERBLOCK_COUNT (VDEV_UBERBLOCK_RING >> UBERBLOCK_SHIFT) 4458 4459typedef struct zdb_label { 4460 vdev_label_t label; 4461 uint64_t label_offset; 4462 nvlist_t *config_nv; 4463 cksum_record_t *config; 4464 cksum_record_t *uberblocks[MAX_UBERBLOCK_COUNT]; 4465 boolean_t header_printed; 4466 boolean_t read_failed; 4467 boolean_t cksum_valid; 4468} zdb_label_t; 4469 4470static void 4471print_label_header(zdb_label_t *label, int l) 4472{ 4473 4474 if (dump_opt['q']) 4475 return; 4476 4477 if (label->header_printed == B_TRUE) 4478 return; 4479 4480 (void) printf("------------------------------------\n"); 4481 (void) printf("LABEL %d %s\n", l, 4482 label->cksum_valid ? "" : "(Bad label cksum)"); 4483 (void) printf("------------------------------------\n"); 4484 4485 label->header_printed = B_TRUE; 4486} 4487 4488static void 4489print_l2arc_header(void) 4490{ 4491 (void) printf("------------------------------------\n"); 4492 (void) printf("L2ARC device header\n"); 4493 (void) printf("------------------------------------\n"); 4494} 4495 4496static void 4497print_l2arc_log_blocks(void) 4498{ 4499 (void) printf("------------------------------------\n"); 4500 (void) printf("L2ARC device log blocks\n"); 4501 (void) printf("------------------------------------\n"); 4502} 4503 4504static void 4505dump_l2arc_log_entries(uint64_t log_entries, 4506 l2arc_log_ent_phys_t *le, uint64_t i) 4507{ 4508 for (int j = 0; j < log_entries; j++) { 4509 dva_t dva = le[j].le_dva; 4510 (void) printf("lb[%4llu]\tle[%4d]\tDVA asize: %llu, " 4511 "vdev: %llu, offset: %llu\n", 4512 (u_longlong_t)i, j + 1, 4513 (u_longlong_t)DVA_GET_ASIZE(&dva), 4514 (u_longlong_t)DVA_GET_VDEV(&dva), 4515 (u_longlong_t)DVA_GET_OFFSET(&dva)); 4516 (void) printf("|\t\t\t\tbirth: %llu\n", 4517 (u_longlong_t)le[j].le_birth); 4518 (void) printf("|\t\t\t\tlsize: %llu\n", 4519 (u_longlong_t)L2BLK_GET_LSIZE((&le[j])->le_prop)); 4520 (void) printf("|\t\t\t\tpsize: %llu\n", 4521 (u_longlong_t)L2BLK_GET_PSIZE((&le[j])->le_prop)); 4522 (void) printf("|\t\t\t\tcompr: %llu\n", 4523 (u_longlong_t)L2BLK_GET_COMPRESS((&le[j])->le_prop)); 4524 (void) printf("|\t\t\t\tcomplevel: %llu\n", 4525 (u_longlong_t)(&le[j])->le_complevel); 4526 (void) printf("|\t\t\t\ttype: %llu\n", 4527 (u_longlong_t)L2BLK_GET_TYPE((&le[j])->le_prop)); 4528 (void) printf("|\t\t\t\tprotected: %llu\n", 4529 (u_longlong_t)L2BLK_GET_PROTECTED((&le[j])->le_prop)); 4530 (void) printf("|\t\t\t\tprefetch: %llu\n", 4531 (u_longlong_t)L2BLK_GET_PREFETCH((&le[j])->le_prop)); 4532 (void) printf("|\t\t\t\taddress: %llu\n", 4533 (u_longlong_t)le[j].le_daddr); 4534 (void) printf("|\t\t\t\tARC state: %llu\n", 4535 (u_longlong_t)L2BLK_GET_STATE((&le[j])->le_prop)); 4536 (void) printf("|\n"); 4537 } 4538 (void) printf("\n"); 4539} 4540 4541static void 4542dump_l2arc_log_blkptr(const l2arc_log_blkptr_t *lbps) 4543{ 4544 (void) printf("|\t\tdaddr: %llu\n", (u_longlong_t)lbps->lbp_daddr); 4545 (void) printf("|\t\tpayload_asize: %llu\n", 4546 (u_longlong_t)lbps->lbp_payload_asize); 4547 (void) printf("|\t\tpayload_start: %llu\n", 4548 (u_longlong_t)lbps->lbp_payload_start); 4549 (void) printf("|\t\tlsize: %llu\n", 4550 (u_longlong_t)L2BLK_GET_LSIZE(lbps->lbp_prop)); 4551 (void) printf("|\t\tasize: %llu\n", 4552 (u_longlong_t)L2BLK_GET_PSIZE(lbps->lbp_prop)); 4553 (void) printf("|\t\tcompralgo: %llu\n", 4554 (u_longlong_t)L2BLK_GET_COMPRESS(lbps->lbp_prop)); 4555 (void) printf("|\t\tcksumalgo: %llu\n", 4556 (u_longlong_t)L2BLK_GET_CHECKSUM(lbps->lbp_prop)); 4557 (void) printf("|\n\n"); 4558} 4559 4560static void 4561dump_l2arc_log_blocks(int fd, const l2arc_dev_hdr_phys_t *l2dhdr, 4562 l2arc_dev_hdr_phys_t *rebuild) 4563{ 4564 l2arc_log_blk_phys_t this_lb; 4565 uint64_t asize; 4566 l2arc_log_blkptr_t lbps[2]; 4567 abd_t *abd; 4568 zio_cksum_t cksum; 4569 int failed = 0; 4570 l2arc_dev_t dev; 4571 4572 if (!dump_opt['q']) 4573 print_l2arc_log_blocks(); 4574 memcpy(lbps, l2dhdr->dh_start_lbps, sizeof (lbps)); 4575 4576 dev.l2ad_evict = l2dhdr->dh_evict; 4577 dev.l2ad_start = l2dhdr->dh_start; 4578 dev.l2ad_end = l2dhdr->dh_end; 4579 4580 if (l2dhdr->dh_start_lbps[0].lbp_daddr == 0) { 4581 /* no log blocks to read */ 4582 if (!dump_opt['q']) { 4583 (void) printf("No log blocks to read\n"); 4584 (void) printf("\n"); 4585 } 4586 return; 4587 } else { 4588 dev.l2ad_hand = lbps[0].lbp_daddr + 4589 L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4590 } 4591 4592 dev.l2ad_first = !!(l2dhdr->dh_flags & L2ARC_DEV_HDR_EVICT_FIRST); 4593 4594 for (;;) { 4595 if (!l2arc_log_blkptr_valid(&dev, &lbps[0])) 4596 break; 4597 4598 /* L2BLK_GET_PSIZE returns aligned size for log blocks */ 4599 asize = L2BLK_GET_PSIZE((&lbps[0])->lbp_prop); 4600 if (pread64(fd, &this_lb, asize, lbps[0].lbp_daddr) != asize) { 4601 if (!dump_opt['q']) { 4602 (void) printf("Error while reading next log " 4603 "block\n\n"); 4604 } 4605 break; 4606 } 4607 4608 fletcher_4_native_varsize(&this_lb, asize, &cksum); 4609 if (!ZIO_CHECKSUM_EQUAL(cksum, lbps[0].lbp_cksum)) { 4610 failed++; 4611 if (!dump_opt['q']) { 4612 (void) printf("Invalid cksum\n"); 4613 dump_l2arc_log_blkptr(&lbps[0]); 4614 } 4615 break; 4616 } 4617 4618 switch (L2BLK_GET_COMPRESS((&lbps[0])->lbp_prop)) { 4619 case ZIO_COMPRESS_OFF: 4620 break; 4621 default: 4622 abd = abd_alloc_for_io(asize, B_TRUE); 4623 abd_copy_from_buf_off(abd, &this_lb, 0, asize); 4624 if (zio_decompress_data(L2BLK_GET_COMPRESS( 4625 (&lbps[0])->lbp_prop), abd, &this_lb, 4626 asize, sizeof (this_lb), NULL) != 0) { 4627 (void) printf("L2ARC block decompression " 4628 "failed\n"); 4629 abd_free(abd); 4630 goto out; 4631 } 4632 abd_free(abd); 4633 break; 4634 } 4635 4636 if (this_lb.lb_magic == BSWAP_64(L2ARC_LOG_BLK_MAGIC)) 4637 byteswap_uint64_array(&this_lb, sizeof (this_lb)); 4638 if (this_lb.lb_magic != L2ARC_LOG_BLK_MAGIC) { 4639 if (!dump_opt['q']) 4640 (void) printf("Invalid log block magic\n\n"); 4641 break; 4642 } 4643 4644 rebuild->dh_lb_count++; 4645 rebuild->dh_lb_asize += asize; 4646 if (dump_opt['l'] > 1 && !dump_opt['q']) { 4647 (void) printf("lb[%4llu]\tmagic: %llu\n", 4648 (u_longlong_t)rebuild->dh_lb_count, 4649 (u_longlong_t)this_lb.lb_magic); 4650 dump_l2arc_log_blkptr(&lbps[0]); 4651 } 4652 4653 if (dump_opt['l'] > 2 && !dump_opt['q']) 4654 dump_l2arc_log_entries(l2dhdr->dh_log_entries, 4655 this_lb.lb_entries, 4656 rebuild->dh_lb_count); 4657 4658 if (l2arc_range_check_overlap(lbps[1].lbp_payload_start, 4659 lbps[0].lbp_payload_start, dev.l2ad_evict) && 4660 !dev.l2ad_first) 4661 break; 4662 4663 lbps[0] = lbps[1]; 4664 lbps[1] = this_lb.lb_prev_lbp; 4665 } 4666out: 4667 if (!dump_opt['q']) { 4668 (void) printf("log_blk_count:\t %llu with valid cksum\n", 4669 (u_longlong_t)rebuild->dh_lb_count); 4670 (void) printf("\t\t %d with invalid cksum\n", failed); 4671 (void) printf("log_blk_asize:\t %llu\n\n", 4672 (u_longlong_t)rebuild->dh_lb_asize); 4673 } 4674} 4675 4676static int 4677dump_l2arc_header(int fd) 4678{ 4679 l2arc_dev_hdr_phys_t l2dhdr = {0}, rebuild = {0}; 4680 int error = B_FALSE; 4681 4682 if (pread64(fd, &l2dhdr, sizeof (l2dhdr), 4683 VDEV_LABEL_START_SIZE) != sizeof (l2dhdr)) { 4684 error = B_TRUE; 4685 } else { 4686 if (l2dhdr.dh_magic == BSWAP_64(L2ARC_DEV_HDR_MAGIC)) 4687 byteswap_uint64_array(&l2dhdr, sizeof (l2dhdr)); 4688 4689 if (l2dhdr.dh_magic != L2ARC_DEV_HDR_MAGIC) 4690 error = B_TRUE; 4691 } 4692 4693 if (error) { 4694 (void) printf("L2ARC device header not found\n\n"); 4695 /* Do not return an error here for backward compatibility */ 4696 return (0); 4697 } else if (!dump_opt['q']) { 4698 print_l2arc_header(); 4699 4700 (void) printf(" magic: %llu\n", 4701 (u_longlong_t)l2dhdr.dh_magic); 4702 (void) printf(" version: %llu\n", 4703 (u_longlong_t)l2dhdr.dh_version); 4704 (void) printf(" pool_guid: %llu\n", 4705 (u_longlong_t)l2dhdr.dh_spa_guid); 4706 (void) printf(" flags: %llu\n", 4707 (u_longlong_t)l2dhdr.dh_flags); 4708 (void) printf(" start_lbps[0]: %llu\n", 4709 (u_longlong_t) 4710 l2dhdr.dh_start_lbps[0].lbp_daddr); 4711 (void) printf(" start_lbps[1]: %llu\n", 4712 (u_longlong_t) 4713 l2dhdr.dh_start_lbps[1].lbp_daddr); 4714 (void) printf(" log_blk_ent: %llu\n", 4715 (u_longlong_t)l2dhdr.dh_log_entries); 4716 (void) printf(" start: %llu\n", 4717 (u_longlong_t)l2dhdr.dh_start); 4718 (void) printf(" end: %llu\n", 4719 (u_longlong_t)l2dhdr.dh_end); 4720 (void) printf(" evict: %llu\n", 4721 (u_longlong_t)l2dhdr.dh_evict); 4722 (void) printf(" lb_asize_refcount: %llu\n", 4723 (u_longlong_t)l2dhdr.dh_lb_asize); 4724 (void) printf(" lb_count_refcount: %llu\n", 4725 (u_longlong_t)l2dhdr.dh_lb_count); 4726 (void) printf(" trim_action_time: %llu\n", 4727 (u_longlong_t)l2dhdr.dh_trim_action_time); 4728 (void) printf(" trim_state: %llu\n\n", 4729 (u_longlong_t)l2dhdr.dh_trim_state); 4730 } 4731 4732 dump_l2arc_log_blocks(fd, &l2dhdr, &rebuild); 4733 /* 4734 * The total aligned size of log blocks and the number of log blocks 4735 * reported in the header of the device may be less than what zdb 4736 * reports by dump_l2arc_log_blocks() which emulates l2arc_rebuild(). 4737 * This happens because dump_l2arc_log_blocks() lacks the memory 4738 * pressure valve that l2arc_rebuild() has. Thus, if we are on a system 4739 * with low memory, l2arc_rebuild will exit prematurely and dh_lb_asize 4740 * and dh_lb_count will be lower to begin with than what exists on the 4741 * device. This is normal and zdb should not exit with an error. The 4742 * opposite case should never happen though, the values reported in the 4743 * header should never be higher than what dump_l2arc_log_blocks() and 4744 * l2arc_rebuild() report. If this happens there is a leak in the 4745 * accounting of log blocks. 4746 */ 4747 if (l2dhdr.dh_lb_asize > rebuild.dh_lb_asize || 4748 l2dhdr.dh_lb_count > rebuild.dh_lb_count) 4749 return (1); 4750 4751 return (0); 4752} 4753 4754static void 4755dump_config_from_label(zdb_label_t *label, size_t buflen, int l) 4756{ 4757 if (dump_opt['q']) 4758 return; 4759 4760 if ((dump_opt['l'] < 3) && (first_label(label->config) != l)) 4761 return; 4762 4763 print_label_header(label, l); 4764 dump_nvlist(label->config_nv, 4); 4765 print_label_numbers(" labels = ", label->config); 4766 4767 if (dump_opt['l'] >= 2) 4768 dump_nvlist_stats(label->config_nv, buflen); 4769} 4770 4771#define ZDB_MAX_UB_HEADER_SIZE 32 4772 4773static void 4774dump_label_uberblocks(zdb_label_t *label, uint64_t ashift, int label_num) 4775{ 4776 4777 vdev_t vd; 4778 char header[ZDB_MAX_UB_HEADER_SIZE]; 4779 4780 vd.vdev_ashift = ashift; 4781 vd.vdev_top = &vd; 4782 4783 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 4784 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 4785 uberblock_t *ub = (void *)((char *)&label->label + uoff); 4786 cksum_record_t *rec = label->uberblocks[i]; 4787 4788 if (rec == NULL) { 4789 if (dump_opt['u'] >= 2) { 4790 print_label_header(label, label_num); 4791 (void) printf(" Uberblock[%d] invalid\n", i); 4792 } 4793 continue; 4794 } 4795 4796 if ((dump_opt['u'] < 3) && (first_label(rec) != label_num)) 4797 continue; 4798 4799 if ((dump_opt['u'] < 4) && 4800 (ub->ub_mmp_magic == MMP_MAGIC) && ub->ub_mmp_delay && 4801 (i >= VDEV_UBERBLOCK_COUNT(&vd) - MMP_BLOCKS_PER_LABEL)) 4802 continue; 4803 4804 print_label_header(label, label_num); 4805 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 4806 " Uberblock[%d]\n", i); 4807 dump_uberblock(ub, header, ""); 4808 print_label_numbers(" labels = ", rec); 4809 } 4810} 4811 4812static char curpath[PATH_MAX]; 4813 4814/* 4815 * Iterate through the path components, recursively passing 4816 * current one's obj and remaining path until we find the obj 4817 * for the last one. 4818 */ 4819static int 4820dump_path_impl(objset_t *os, uint64_t obj, char *name, uint64_t *retobj) 4821{ 4822 int err; 4823 boolean_t header = B_TRUE; 4824 uint64_t child_obj; 4825 char *s; 4826 dmu_buf_t *db; 4827 dmu_object_info_t doi; 4828 4829 if ((s = strchr(name, '/')) != NULL) 4830 *s = '\0'; 4831 err = zap_lookup(os, obj, name, 8, 1, &child_obj); 4832 4833 (void) strlcat(curpath, name, sizeof (curpath)); 4834 4835 if (err != 0) { 4836 (void) fprintf(stderr, "failed to lookup %s: %s\n", 4837 curpath, strerror(err)); 4838 return (err); 4839 } 4840 4841 child_obj = ZFS_DIRENT_OBJ(child_obj); 4842 err = sa_buf_hold(os, child_obj, FTAG, &db); 4843 if (err != 0) { 4844 (void) fprintf(stderr, 4845 "failed to get SA dbuf for obj %llu: %s\n", 4846 (u_longlong_t)child_obj, strerror(err)); 4847 return (EINVAL); 4848 } 4849 dmu_object_info_from_db(db, &doi); 4850 sa_buf_rele(db, FTAG); 4851 4852 if (doi.doi_bonus_type != DMU_OT_SA && 4853 doi.doi_bonus_type != DMU_OT_ZNODE) { 4854 (void) fprintf(stderr, "invalid bonus type %d for obj %llu\n", 4855 doi.doi_bonus_type, (u_longlong_t)child_obj); 4856 return (EINVAL); 4857 } 4858 4859 if (dump_opt['v'] > 6) { 4860 (void) printf("obj=%llu %s type=%d bonustype=%d\n", 4861 (u_longlong_t)child_obj, curpath, doi.doi_type, 4862 doi.doi_bonus_type); 4863 } 4864 4865 (void) strlcat(curpath, "/", sizeof (curpath)); 4866 4867 switch (doi.doi_type) { 4868 case DMU_OT_DIRECTORY_CONTENTS: 4869 if (s != NULL && *(s + 1) != '\0') 4870 return (dump_path_impl(os, child_obj, s + 1, retobj)); 4871 zfs_fallthrough; 4872 case DMU_OT_PLAIN_FILE_CONTENTS: 4873 if (retobj != NULL) { 4874 *retobj = child_obj; 4875 } else { 4876 dump_object(os, child_obj, dump_opt['v'], &header, 4877 NULL, 0); 4878 } 4879 return (0); 4880 default: 4881 (void) fprintf(stderr, "object %llu has non-file/directory " 4882 "type %d\n", (u_longlong_t)obj, doi.doi_type); 4883 break; 4884 } 4885 4886 return (EINVAL); 4887} 4888 4889/* 4890 * Dump the blocks for the object specified by path inside the dataset. 4891 */ 4892static int 4893dump_path(char *ds, char *path, uint64_t *retobj) 4894{ 4895 int err; 4896 objset_t *os; 4897 uint64_t root_obj; 4898 4899 err = open_objset(ds, FTAG, &os); 4900 if (err != 0) 4901 return (err); 4902 4903 err = zap_lookup(os, MASTER_NODE_OBJ, ZFS_ROOT_OBJ, 8, 1, &root_obj); 4904 if (err != 0) { 4905 (void) fprintf(stderr, "can't lookup root znode: %s\n", 4906 strerror(err)); 4907 close_objset(os, FTAG); 4908 return (EINVAL); 4909 } 4910 4911 (void) snprintf(curpath, sizeof (curpath), "dataset=%s path=/", ds); 4912 4913 err = dump_path_impl(os, root_obj, path, retobj); 4914 4915 close_objset(os, FTAG); 4916 return (err); 4917} 4918 4919static int 4920dump_backup_bytes(objset_t *os, void *buf, int len, void *arg) 4921{ 4922 const char *p = (const char *)buf; 4923 ssize_t nwritten; 4924 4925 (void) os; 4926 (void) arg; 4927 4928 /* Write the data out, handling short writes and signals. */ 4929 while ((nwritten = write(STDOUT_FILENO, p, len)) < len) { 4930 if (nwritten < 0) { 4931 if (errno == EINTR) 4932 continue; 4933 return (errno); 4934 } 4935 p += nwritten; 4936 len -= nwritten; 4937 } 4938 4939 return (0); 4940} 4941 4942static void 4943dump_backup(const char *pool, uint64_t objset_id, const char *flagstr) 4944{ 4945 boolean_t embed = B_FALSE; 4946 boolean_t large_block = B_FALSE; 4947 boolean_t compress = B_FALSE; 4948 boolean_t raw = B_FALSE; 4949 4950 const char *c; 4951 for (c = flagstr; c != NULL && *c != '\0'; c++) { 4952 switch (*c) { 4953 case 'e': 4954 embed = B_TRUE; 4955 break; 4956 case 'L': 4957 large_block = B_TRUE; 4958 break; 4959 case 'c': 4960 compress = B_TRUE; 4961 break; 4962 case 'w': 4963 raw = B_TRUE; 4964 break; 4965 default: 4966 fprintf(stderr, "dump_backup: invalid flag " 4967 "'%c'\n", *c); 4968 return; 4969 } 4970 } 4971 4972 if (isatty(STDOUT_FILENO)) { 4973 fprintf(stderr, "dump_backup: stream cannot be written " 4974 "to a terminal\n"); 4975 return; 4976 } 4977 4978 offset_t off = 0; 4979 dmu_send_outparams_t out = { 4980 .dso_outfunc = dump_backup_bytes, 4981 .dso_dryrun = B_FALSE, 4982 }; 4983 4984 int err = dmu_send_obj(pool, objset_id, /* fromsnap */0, embed, 4985 large_block, compress, raw, /* saved */ B_FALSE, STDOUT_FILENO, 4986 &off, &out); 4987 if (err != 0) { 4988 fprintf(stderr, "dump_backup: dmu_send_obj: %s\n", 4989 strerror(err)); 4990 return; 4991 } 4992} 4993 4994static int 4995zdb_copy_object(objset_t *os, uint64_t srcobj, char *destfile) 4996{ 4997 int err = 0; 4998 uint64_t size, readsize, oursize, offset; 4999 ssize_t writesize; 5000 sa_handle_t *hdl; 5001 5002 (void) printf("Copying object %" PRIu64 " to file %s\n", srcobj, 5003 destfile); 5004 5005 VERIFY3P(os, ==, sa_os); 5006 if ((err = sa_handle_get(os, srcobj, NULL, SA_HDL_PRIVATE, &hdl))) { 5007 (void) printf("Failed to get handle for SA znode\n"); 5008 return (err); 5009 } 5010 if ((err = sa_lookup(hdl, sa_attr_table[ZPL_SIZE], &size, 8))) { 5011 (void) sa_handle_destroy(hdl); 5012 return (err); 5013 } 5014 (void) sa_handle_destroy(hdl); 5015 5016 (void) printf("Object %" PRIu64 " is %" PRIu64 " bytes\n", srcobj, 5017 size); 5018 if (size == 0) { 5019 return (EINVAL); 5020 } 5021 5022 int fd = open(destfile, O_WRONLY | O_CREAT | O_TRUNC, 0644); 5023 if (fd == -1) 5024 return (errno); 5025 /* 5026 * We cap the size at 1 mebibyte here to prevent 5027 * allocation failures and nigh-infinite printing if the 5028 * object is extremely large. 5029 */ 5030 oursize = MIN(size, 1 << 20); 5031 offset = 0; 5032 char *buf = kmem_alloc(oursize, KM_NOSLEEP); 5033 if (buf == NULL) { 5034 (void) close(fd); 5035 return (ENOMEM); 5036 } 5037 5038 while (offset < size) { 5039 readsize = MIN(size - offset, 1 << 20); 5040 err = dmu_read(os, srcobj, offset, readsize, buf, 0); 5041 if (err != 0) { 5042 (void) printf("got error %u from dmu_read\n", err); 5043 kmem_free(buf, oursize); 5044 (void) close(fd); 5045 return (err); 5046 } 5047 if (dump_opt['v'] > 3) { 5048 (void) printf("Read offset=%" PRIu64 " size=%" PRIu64 5049 " error=%d\n", offset, readsize, err); 5050 } 5051 5052 writesize = write(fd, buf, readsize); 5053 if (writesize < 0) { 5054 err = errno; 5055 break; 5056 } else if (writesize != readsize) { 5057 /* Incomplete write */ 5058 (void) fprintf(stderr, "Short write, only wrote %llu of" 5059 " %" PRIu64 " bytes, exiting...\n", 5060 (u_longlong_t)writesize, readsize); 5061 break; 5062 } 5063 5064 offset += readsize; 5065 } 5066 5067 (void) close(fd); 5068 5069 if (buf != NULL) 5070 kmem_free(buf, oursize); 5071 5072 return (err); 5073} 5074 5075static boolean_t 5076label_cksum_valid(vdev_label_t *label, uint64_t offset) 5077{ 5078 zio_checksum_info_t *ci = &zio_checksum_table[ZIO_CHECKSUM_LABEL]; 5079 zio_cksum_t expected_cksum; 5080 zio_cksum_t actual_cksum; 5081 zio_cksum_t verifier; 5082 zio_eck_t *eck; 5083 int byteswap; 5084 5085 void *data = (char *)label + offsetof(vdev_label_t, vl_vdev_phys); 5086 eck = (zio_eck_t *)((char *)(data) + VDEV_PHYS_SIZE) - 1; 5087 5088 offset += offsetof(vdev_label_t, vl_vdev_phys); 5089 ZIO_SET_CHECKSUM(&verifier, offset, 0, 0, 0); 5090 5091 byteswap = (eck->zec_magic == BSWAP_64(ZEC_MAGIC)); 5092 if (byteswap) 5093 byteswap_uint64_array(&verifier, sizeof (zio_cksum_t)); 5094 5095 expected_cksum = eck->zec_cksum; 5096 eck->zec_cksum = verifier; 5097 5098 abd_t *abd = abd_get_from_buf(data, VDEV_PHYS_SIZE); 5099 ci->ci_func[byteswap](abd, VDEV_PHYS_SIZE, NULL, &actual_cksum); 5100 abd_free(abd); 5101 5102 if (byteswap) 5103 byteswap_uint64_array(&expected_cksum, sizeof (zio_cksum_t)); 5104 5105 if (ZIO_CHECKSUM_EQUAL(actual_cksum, expected_cksum)) 5106 return (B_TRUE); 5107 5108 return (B_FALSE); 5109} 5110 5111static int 5112dump_label(const char *dev) 5113{ 5114 char path[MAXPATHLEN]; 5115 zdb_label_t labels[VDEV_LABELS] = {{{{0}}}}; 5116 uint64_t psize, ashift, l2cache; 5117 struct stat64 statbuf; 5118 boolean_t config_found = B_FALSE; 5119 boolean_t error = B_FALSE; 5120 boolean_t read_l2arc_header = B_FALSE; 5121 avl_tree_t config_tree; 5122 avl_tree_t uberblock_tree; 5123 void *node, *cookie; 5124 int fd; 5125 5126 /* 5127 * Check if we were given absolute path and use it as is. 5128 * Otherwise if the provided vdev name doesn't point to a file, 5129 * try prepending expected disk paths and partition numbers. 5130 */ 5131 (void) strlcpy(path, dev, sizeof (path)); 5132 if (dev[0] != '/' && stat64(path, &statbuf) != 0) { 5133 int error; 5134 5135 error = zfs_resolve_shortname(dev, path, MAXPATHLEN); 5136 if (error == 0 && zfs_dev_is_whole_disk(path)) { 5137 if (zfs_append_partition(path, MAXPATHLEN) == -1) 5138 error = ENOENT; 5139 } 5140 5141 if (error || (stat64(path, &statbuf) != 0)) { 5142 (void) printf("failed to find device %s, try " 5143 "specifying absolute path instead\n", dev); 5144 return (1); 5145 } 5146 } 5147 5148 if ((fd = open64(path, O_RDONLY)) < 0) { 5149 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 5150 zdb_exit(1); 5151 } 5152 5153 if (fstat64_blk(fd, &statbuf) != 0) { 5154 (void) printf("failed to stat '%s': %s\n", path, 5155 strerror(errno)); 5156 (void) close(fd); 5157 zdb_exit(1); 5158 } 5159 5160 if (S_ISBLK(statbuf.st_mode) && zfs_dev_flush(fd) != 0) 5161 (void) printf("failed to invalidate cache '%s' : %s\n", path, 5162 strerror(errno)); 5163 5164 avl_create(&config_tree, cksum_record_compare, 5165 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 5166 avl_create(&uberblock_tree, cksum_record_compare, 5167 sizeof (cksum_record_t), offsetof(cksum_record_t, link)); 5168 5169 psize = statbuf.st_size; 5170 psize = P2ALIGN_TYPED(psize, sizeof (vdev_label_t), uint64_t); 5171 ashift = SPA_MINBLOCKSHIFT; 5172 5173 /* 5174 * 1. Read the label from disk 5175 * 2. Verify label cksum 5176 * 3. Unpack the configuration and insert in config tree. 5177 * 4. Traverse all uberblocks and insert in uberblock tree. 5178 */ 5179 for (int l = 0; l < VDEV_LABELS; l++) { 5180 zdb_label_t *label = &labels[l]; 5181 char *buf = label->label.vl_vdev_phys.vp_nvlist; 5182 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 5183 nvlist_t *config; 5184 cksum_record_t *rec; 5185 zio_cksum_t cksum; 5186 vdev_t vd; 5187 5188 label->label_offset = vdev_label_offset(psize, l, 0); 5189 5190 if (pread64(fd, &label->label, sizeof (label->label), 5191 label->label_offset) != sizeof (label->label)) { 5192 if (!dump_opt['q']) 5193 (void) printf("failed to read label %d\n", l); 5194 label->read_failed = B_TRUE; 5195 error = B_TRUE; 5196 continue; 5197 } 5198 5199 label->read_failed = B_FALSE; 5200 label->cksum_valid = label_cksum_valid(&label->label, 5201 label->label_offset); 5202 5203 if (nvlist_unpack(buf, buflen, &config, 0) == 0) { 5204 nvlist_t *vdev_tree = NULL; 5205 size_t size; 5206 5207 if ((nvlist_lookup_nvlist(config, 5208 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 5209 (nvlist_lookup_uint64(vdev_tree, 5210 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 5211 ashift = SPA_MINBLOCKSHIFT; 5212 5213 if (nvlist_size(config, &size, NV_ENCODE_XDR) != 0) 5214 size = buflen; 5215 5216 /* If the device is a cache device read the header. */ 5217 if (!read_l2arc_header) { 5218 if (nvlist_lookup_uint64(config, 5219 ZPOOL_CONFIG_POOL_STATE, &l2cache) == 0 && 5220 l2cache == POOL_STATE_L2CACHE) { 5221 read_l2arc_header = B_TRUE; 5222 } 5223 } 5224 5225 fletcher_4_native_varsize(buf, size, &cksum); 5226 rec = cksum_record_insert(&config_tree, &cksum, l); 5227 5228 label->config = rec; 5229 label->config_nv = config; 5230 config_found = B_TRUE; 5231 } else { 5232 error = B_TRUE; 5233 } 5234 5235 vd.vdev_ashift = ashift; 5236 vd.vdev_top = &vd; 5237 5238 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(&vd); i++) { 5239 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(&vd, i); 5240 uberblock_t *ub = (void *)((char *)label + uoff); 5241 5242 if (uberblock_verify(ub)) 5243 continue; 5244 5245 fletcher_4_native_varsize(ub, sizeof (*ub), &cksum); 5246 rec = cksum_record_insert(&uberblock_tree, &cksum, l); 5247 5248 label->uberblocks[i] = rec; 5249 } 5250 } 5251 5252 /* 5253 * Dump the label and uberblocks. 5254 */ 5255 for (int l = 0; l < VDEV_LABELS; l++) { 5256 zdb_label_t *label = &labels[l]; 5257 size_t buflen = sizeof (label->label.vl_vdev_phys.vp_nvlist); 5258 5259 if (label->read_failed == B_TRUE) 5260 continue; 5261 5262 if (label->config_nv) { 5263 dump_config_from_label(label, buflen, l); 5264 } else { 5265 if (!dump_opt['q']) 5266 (void) printf("failed to unpack label %d\n", l); 5267 } 5268 5269 if (dump_opt['u']) 5270 dump_label_uberblocks(label, ashift, l); 5271 5272 nvlist_free(label->config_nv); 5273 } 5274 5275 /* 5276 * Dump the L2ARC header, if existent. 5277 */ 5278 if (read_l2arc_header) 5279 error |= dump_l2arc_header(fd); 5280 5281 cookie = NULL; 5282 while ((node = avl_destroy_nodes(&config_tree, &cookie)) != NULL) 5283 umem_free(node, sizeof (cksum_record_t)); 5284 5285 cookie = NULL; 5286 while ((node = avl_destroy_nodes(&uberblock_tree, &cookie)) != NULL) 5287 umem_free(node, sizeof (cksum_record_t)); 5288 5289 avl_destroy(&config_tree); 5290 avl_destroy(&uberblock_tree); 5291 5292 (void) close(fd); 5293 5294 return (config_found == B_FALSE ? 2 : 5295 (error == B_TRUE ? 1 : 0)); 5296} 5297 5298static uint64_t dataset_feature_count[SPA_FEATURES]; 5299static uint64_t global_feature_count[SPA_FEATURES]; 5300static uint64_t remap_deadlist_count = 0; 5301 5302static int 5303dump_one_objset(const char *dsname, void *arg) 5304{ 5305 (void) arg; 5306 int error; 5307 objset_t *os; 5308 spa_feature_t f; 5309 5310 error = open_objset(dsname, FTAG, &os); 5311 if (error != 0) 5312 return (0); 5313 5314 for (f = 0; f < SPA_FEATURES; f++) { 5315 if (!dsl_dataset_feature_is_active(dmu_objset_ds(os), f)) 5316 continue; 5317 ASSERT(spa_feature_table[f].fi_flags & 5318 ZFEATURE_FLAG_PER_DATASET); 5319 dataset_feature_count[f]++; 5320 } 5321 5322 if (dsl_dataset_remap_deadlist_exists(dmu_objset_ds(os))) { 5323 remap_deadlist_count++; 5324 } 5325 5326 for (dsl_bookmark_node_t *dbn = 5327 avl_first(&dmu_objset_ds(os)->ds_bookmarks); dbn != NULL; 5328 dbn = AVL_NEXT(&dmu_objset_ds(os)->ds_bookmarks, dbn)) { 5329 mos_obj_refd(dbn->dbn_phys.zbm_redaction_obj); 5330 if (dbn->dbn_phys.zbm_redaction_obj != 0) { 5331 global_feature_count[ 5332 SPA_FEATURE_REDACTION_BOOKMARKS]++; 5333 objset_t *mos = os->os_spa->spa_meta_objset; 5334 dnode_t *rl; 5335 VERIFY0(dnode_hold(mos, 5336 dbn->dbn_phys.zbm_redaction_obj, FTAG, &rl)); 5337 if (rl->dn_have_spill) { 5338 global_feature_count[ 5339 SPA_FEATURE_REDACTION_LIST_SPILL]++; 5340 } 5341 } 5342 if (dbn->dbn_phys.zbm_flags & ZBM_FLAG_HAS_FBN) 5343 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN]++; 5344 } 5345 5346 if (dsl_deadlist_is_open(&dmu_objset_ds(os)->ds_dir->dd_livelist) && 5347 !dmu_objset_is_snapshot(os)) { 5348 global_feature_count[SPA_FEATURE_LIVELIST]++; 5349 } 5350 5351 dump_objset(os); 5352 close_objset(os, FTAG); 5353 fuid_table_destroy(); 5354 return (0); 5355} 5356 5357/* 5358 * Block statistics. 5359 */ 5360#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 5361typedef struct zdb_blkstats { 5362 uint64_t zb_asize; 5363 uint64_t zb_lsize; 5364 uint64_t zb_psize; 5365 uint64_t zb_count; 5366 uint64_t zb_gangs; 5367 uint64_t zb_ditto_samevdev; 5368 uint64_t zb_ditto_same_ms; 5369 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 5370} zdb_blkstats_t; 5371 5372/* 5373 * Extended object types to report deferred frees and dedup auto-ditto blocks. 5374 */ 5375#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 5376#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 5377#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 5378#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 5379 5380static const char *zdb_ot_extname[] = { 5381 "deferred free", 5382 "dedup ditto", 5383 "other", 5384 "Total", 5385}; 5386 5387#define ZB_TOTAL DN_MAX_LEVELS 5388#define SPA_MAX_FOR_16M (SPA_MAXBLOCKSHIFT+1) 5389 5390typedef struct zdb_brt_entry { 5391 dva_t zbre_dva; 5392 uint64_t zbre_refcount; 5393 avl_node_t zbre_node; 5394} zdb_brt_entry_t; 5395 5396typedef struct zdb_cb { 5397 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 5398 uint64_t zcb_removing_size; 5399 uint64_t zcb_checkpoint_size; 5400 uint64_t zcb_dedup_asize; 5401 uint64_t zcb_dedup_blocks; 5402 uint64_t zcb_clone_asize; 5403 uint64_t zcb_clone_blocks; 5404 uint64_t zcb_psize_count[SPA_MAX_FOR_16M]; 5405 uint64_t zcb_lsize_count[SPA_MAX_FOR_16M]; 5406 uint64_t zcb_asize_count[SPA_MAX_FOR_16M]; 5407 uint64_t zcb_psize_len[SPA_MAX_FOR_16M]; 5408 uint64_t zcb_lsize_len[SPA_MAX_FOR_16M]; 5409 uint64_t zcb_asize_len[SPA_MAX_FOR_16M]; 5410 uint64_t zcb_psize_total; 5411 uint64_t zcb_lsize_total; 5412 uint64_t zcb_asize_total; 5413 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 5414 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 5415 [BPE_PAYLOAD_SIZE + 1]; 5416 uint64_t zcb_start; 5417 hrtime_t zcb_lastprint; 5418 uint64_t zcb_totalasize; 5419 uint64_t zcb_errors[256]; 5420 int zcb_readfails; 5421 int zcb_haderrors; 5422 spa_t *zcb_spa; 5423 uint32_t **zcb_vd_obsolete_counts; 5424 avl_tree_t zcb_brt; 5425 boolean_t zcb_brt_is_active; 5426} zdb_cb_t; 5427 5428/* test if two DVA offsets from same vdev are within the same metaslab */ 5429static boolean_t 5430same_metaslab(spa_t *spa, uint64_t vdev, uint64_t off1, uint64_t off2) 5431{ 5432 vdev_t *vd = vdev_lookup_top(spa, vdev); 5433 uint64_t ms_shift = vd->vdev_ms_shift; 5434 5435 return ((off1 >> ms_shift) == (off2 >> ms_shift)); 5436} 5437 5438/* 5439 * Used to simplify reporting of the histogram data. 5440 */ 5441typedef struct one_histo { 5442 const char *name; 5443 uint64_t *count; 5444 uint64_t *len; 5445 uint64_t cumulative; 5446} one_histo_t; 5447 5448/* 5449 * The number of separate histograms processed for psize, lsize and asize. 5450 */ 5451#define NUM_HISTO 3 5452 5453/* 5454 * This routine will create a fixed column size output of three different 5455 * histograms showing by blocksize of 512 - 2^ SPA_MAX_FOR_16M 5456 * the count, length and cumulative length of the psize, lsize and 5457 * asize blocks. 5458 * 5459 * All three types of blocks are listed on a single line 5460 * 5461 * By default the table is printed in nicenumber format (e.g. 123K) but 5462 * if the '-P' parameter is specified then the full raw number (parseable) 5463 * is printed out. 5464 */ 5465static void 5466dump_size_histograms(zdb_cb_t *zcb) 5467{ 5468 /* 5469 * A temporary buffer that allows us to convert a number into 5470 * a string using zdb_nicenumber to allow either raw or human 5471 * readable numbers to be output. 5472 */ 5473 char numbuf[32]; 5474 5475 /* 5476 * Define titles which are used in the headers of the tables 5477 * printed by this routine. 5478 */ 5479 const char blocksize_title1[] = "block"; 5480 const char blocksize_title2[] = "size"; 5481 const char count_title[] = "Count"; 5482 const char length_title[] = "Size"; 5483 const char cumulative_title[] = "Cum."; 5484 5485 /* 5486 * Setup the histogram arrays (psize, lsize, and asize). 5487 */ 5488 one_histo_t parm_histo[NUM_HISTO]; 5489 5490 parm_histo[0].name = "psize"; 5491 parm_histo[0].count = zcb->zcb_psize_count; 5492 parm_histo[0].len = zcb->zcb_psize_len; 5493 parm_histo[0].cumulative = 0; 5494 5495 parm_histo[1].name = "lsize"; 5496 parm_histo[1].count = zcb->zcb_lsize_count; 5497 parm_histo[1].len = zcb->zcb_lsize_len; 5498 parm_histo[1].cumulative = 0; 5499 5500 parm_histo[2].name = "asize"; 5501 parm_histo[2].count = zcb->zcb_asize_count; 5502 parm_histo[2].len = zcb->zcb_asize_len; 5503 parm_histo[2].cumulative = 0; 5504 5505 5506 (void) printf("\nBlock Size Histogram\n"); 5507 /* 5508 * Print the first line titles 5509 */ 5510 if (dump_opt['P']) 5511 (void) printf("\n%s\t", blocksize_title1); 5512 else 5513 (void) printf("\n%7s ", blocksize_title1); 5514 5515 for (int j = 0; j < NUM_HISTO; j++) { 5516 if (dump_opt['P']) { 5517 if (j < NUM_HISTO - 1) { 5518 (void) printf("%s\t\t\t", parm_histo[j].name); 5519 } else { 5520 /* Don't print trailing spaces */ 5521 (void) printf(" %s", parm_histo[j].name); 5522 } 5523 } else { 5524 if (j < NUM_HISTO - 1) { 5525 /* Left aligned strings in the output */ 5526 (void) printf("%-7s ", 5527 parm_histo[j].name); 5528 } else { 5529 /* Don't print trailing spaces */ 5530 (void) printf("%s", parm_histo[j].name); 5531 } 5532 } 5533 } 5534 (void) printf("\n"); 5535 5536 /* 5537 * Print the second line titles 5538 */ 5539 if (dump_opt['P']) { 5540 (void) printf("%s\t", blocksize_title2); 5541 } else { 5542 (void) printf("%7s ", blocksize_title2); 5543 } 5544 5545 for (int i = 0; i < NUM_HISTO; i++) { 5546 if (dump_opt['P']) { 5547 (void) printf("%s\t%s\t%s\t", 5548 count_title, length_title, cumulative_title); 5549 } else { 5550 (void) printf("%7s%7s%7s", 5551 count_title, length_title, cumulative_title); 5552 } 5553 } 5554 (void) printf("\n"); 5555 5556 /* 5557 * Print the rows 5558 */ 5559 for (int i = SPA_MINBLOCKSHIFT; i < SPA_MAX_FOR_16M; i++) { 5560 5561 /* 5562 * Print the first column showing the blocksize 5563 */ 5564 zdb_nicenum((1ULL << i), numbuf, sizeof (numbuf)); 5565 5566 if (dump_opt['P']) { 5567 printf("%s", numbuf); 5568 } else { 5569 printf("%7s:", numbuf); 5570 } 5571 5572 /* 5573 * Print the remaining set of 3 columns per size: 5574 * for psize, lsize and asize 5575 */ 5576 for (int j = 0; j < NUM_HISTO; j++) { 5577 parm_histo[j].cumulative += parm_histo[j].len[i]; 5578 5579 zdb_nicenum(parm_histo[j].count[i], 5580 numbuf, sizeof (numbuf)); 5581 if (dump_opt['P']) 5582 (void) printf("\t%s", numbuf); 5583 else 5584 (void) printf("%7s", numbuf); 5585 5586 zdb_nicenum(parm_histo[j].len[i], 5587 numbuf, sizeof (numbuf)); 5588 if (dump_opt['P']) 5589 (void) printf("\t%s", numbuf); 5590 else 5591 (void) printf("%7s", numbuf); 5592 5593 zdb_nicenum(parm_histo[j].cumulative, 5594 numbuf, sizeof (numbuf)); 5595 if (dump_opt['P']) 5596 (void) printf("\t%s", numbuf); 5597 else 5598 (void) printf("%7s", numbuf); 5599 } 5600 (void) printf("\n"); 5601 } 5602} 5603 5604static void 5605zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 5606 dmu_object_type_t type) 5607{ 5608 uint64_t refcnt = 0; 5609 int i; 5610 5611 ASSERT(type < ZDB_OT_TOTAL); 5612 5613 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 5614 return; 5615 5616 spa_config_enter(zcb->zcb_spa, SCL_CONFIG, FTAG, RW_READER); 5617 5618 for (i = 0; i < 4; i++) { 5619 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 5620 int t = (i & 1) ? type : ZDB_OT_TOTAL; 5621 int equal; 5622 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 5623 5624 zb->zb_asize += BP_GET_ASIZE(bp); 5625 zb->zb_lsize += BP_GET_LSIZE(bp); 5626 zb->zb_psize += BP_GET_PSIZE(bp); 5627 zb->zb_count++; 5628 5629 /* 5630 * The histogram is only big enough to record blocks up to 5631 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 5632 * "other", bucket. 5633 */ 5634 unsigned idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 5635 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 5636 zb->zb_psize_histogram[idx]++; 5637 5638 zb->zb_gangs += BP_COUNT_GANG(bp); 5639 5640 switch (BP_GET_NDVAS(bp)) { 5641 case 2: 5642 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5643 DVA_GET_VDEV(&bp->blk_dva[1])) { 5644 zb->zb_ditto_samevdev++; 5645 5646 if (same_metaslab(zcb->zcb_spa, 5647 DVA_GET_VDEV(&bp->blk_dva[0]), 5648 DVA_GET_OFFSET(&bp->blk_dva[0]), 5649 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5650 zb->zb_ditto_same_ms++; 5651 } 5652 break; 5653 case 3: 5654 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 5655 DVA_GET_VDEV(&bp->blk_dva[1])) + 5656 (DVA_GET_VDEV(&bp->blk_dva[0]) == 5657 DVA_GET_VDEV(&bp->blk_dva[2])) + 5658 (DVA_GET_VDEV(&bp->blk_dva[1]) == 5659 DVA_GET_VDEV(&bp->blk_dva[2])); 5660 if (equal != 0) { 5661 zb->zb_ditto_samevdev++; 5662 5663 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5664 DVA_GET_VDEV(&bp->blk_dva[1]) && 5665 same_metaslab(zcb->zcb_spa, 5666 DVA_GET_VDEV(&bp->blk_dva[0]), 5667 DVA_GET_OFFSET(&bp->blk_dva[0]), 5668 DVA_GET_OFFSET(&bp->blk_dva[1]))) 5669 zb->zb_ditto_same_ms++; 5670 else if (DVA_GET_VDEV(&bp->blk_dva[0]) == 5671 DVA_GET_VDEV(&bp->blk_dva[2]) && 5672 same_metaslab(zcb->zcb_spa, 5673 DVA_GET_VDEV(&bp->blk_dva[0]), 5674 DVA_GET_OFFSET(&bp->blk_dva[0]), 5675 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5676 zb->zb_ditto_same_ms++; 5677 else if (DVA_GET_VDEV(&bp->blk_dva[1]) == 5678 DVA_GET_VDEV(&bp->blk_dva[2]) && 5679 same_metaslab(zcb->zcb_spa, 5680 DVA_GET_VDEV(&bp->blk_dva[1]), 5681 DVA_GET_OFFSET(&bp->blk_dva[1]), 5682 DVA_GET_OFFSET(&bp->blk_dva[2]))) 5683 zb->zb_ditto_same_ms++; 5684 } 5685 break; 5686 } 5687 } 5688 5689 spa_config_exit(zcb->zcb_spa, SCL_CONFIG, FTAG); 5690 5691 if (BP_IS_EMBEDDED(bp)) { 5692 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 5693 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 5694 [BPE_GET_PSIZE(bp)]++; 5695 return; 5696 } 5697 /* 5698 * The binning histogram bins by powers of two up to 5699 * SPA_MAXBLOCKSIZE rather than creating bins for 5700 * every possible blocksize found in the pool. 5701 */ 5702 int bin = highbit64(BP_GET_PSIZE(bp)) - 1; 5703 5704 zcb->zcb_psize_count[bin]++; 5705 zcb->zcb_psize_len[bin] += BP_GET_PSIZE(bp); 5706 zcb->zcb_psize_total += BP_GET_PSIZE(bp); 5707 5708 bin = highbit64(BP_GET_LSIZE(bp)) - 1; 5709 5710 zcb->zcb_lsize_count[bin]++; 5711 zcb->zcb_lsize_len[bin] += BP_GET_LSIZE(bp); 5712 zcb->zcb_lsize_total += BP_GET_LSIZE(bp); 5713 5714 bin = highbit64(BP_GET_ASIZE(bp)) - 1; 5715 5716 zcb->zcb_asize_count[bin]++; 5717 zcb->zcb_asize_len[bin] += BP_GET_ASIZE(bp); 5718 zcb->zcb_asize_total += BP_GET_ASIZE(bp); 5719 5720 if (zcb->zcb_brt_is_active && brt_maybe_exists(zcb->zcb_spa, bp)) { 5721 /* 5722 * Cloned blocks are special. We need to count them, so we can 5723 * later uncount them when reporting leaked space, and we must 5724 * only claim them them once. 5725 * 5726 * To do this, we keep our own in-memory BRT. For each block 5727 * we haven't seen before, we look it up in the real BRT and 5728 * if its there, we note it and its refcount then proceed as 5729 * normal. If we see the block again, we count it as a clone 5730 * and then give it no further consideration. 5731 */ 5732 zdb_brt_entry_t zbre_search, *zbre; 5733 avl_index_t where; 5734 5735 zbre_search.zbre_dva = bp->blk_dva[0]; 5736 zbre = avl_find(&zcb->zcb_brt, &zbre_search, &where); 5737 if (zbre != NULL) { 5738 zcb->zcb_clone_asize += BP_GET_ASIZE(bp); 5739 zcb->zcb_clone_blocks++; 5740 5741 zbre->zbre_refcount--; 5742 if (zbre->zbre_refcount == 0) { 5743 avl_remove(&zcb->zcb_brt, zbre); 5744 umem_free(zbre, sizeof (zdb_brt_entry_t)); 5745 } 5746 return; 5747 } 5748 5749 uint64_t crefcnt = brt_entry_get_refcount(zcb->zcb_spa, bp); 5750 if (crefcnt > 0) { 5751 zbre = umem_zalloc(sizeof (zdb_brt_entry_t), 5752 UMEM_NOFAIL); 5753 zbre->zbre_dva = bp->blk_dva[0]; 5754 zbre->zbre_refcount = crefcnt; 5755 avl_insert(&zcb->zcb_brt, zbre, where); 5756 } 5757 } 5758 5759 if (dump_opt['L']) 5760 return; 5761 5762 if (BP_GET_DEDUP(bp)) { 5763 ddt_t *ddt; 5764 ddt_entry_t *dde; 5765 5766 ddt = ddt_select(zcb->zcb_spa, bp); 5767 ddt_enter(ddt); 5768 dde = ddt_lookup(ddt, bp, B_FALSE); 5769 5770 if (dde == NULL) { 5771 refcnt = 0; 5772 } else { 5773 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 5774 ddt_phys_decref(ddp); 5775 refcnt = ddp->ddp_refcnt; 5776 if (ddt_phys_total_refcnt(dde) == 0) 5777 ddt_remove(ddt, dde); 5778 } 5779 ddt_exit(ddt); 5780 } 5781 5782 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 5783 refcnt ? 0 : spa_min_claim_txg(zcb->zcb_spa), 5784 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 5785} 5786 5787static void 5788zdb_blkptr_done(zio_t *zio) 5789{ 5790 spa_t *spa = zio->io_spa; 5791 blkptr_t *bp = zio->io_bp; 5792 int ioerr = zio->io_error; 5793 zdb_cb_t *zcb = zio->io_private; 5794 zbookmark_phys_t *zb = &zio->io_bookmark; 5795 5796 mutex_enter(&spa->spa_scrub_lock); 5797 spa->spa_load_verify_bytes -= BP_GET_PSIZE(bp); 5798 cv_broadcast(&spa->spa_scrub_io_cv); 5799 5800 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 5801 char blkbuf[BP_SPRINTF_LEN]; 5802 5803 zcb->zcb_haderrors = 1; 5804 zcb->zcb_errors[ioerr]++; 5805 5806 if (dump_opt['b'] >= 2) 5807 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5808 else 5809 blkbuf[0] = '\0'; 5810 5811 (void) printf("zdb_blkptr_cb: " 5812 "Got error %d reading " 5813 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 5814 ioerr, 5815 (u_longlong_t)zb->zb_objset, 5816 (u_longlong_t)zb->zb_object, 5817 (u_longlong_t)zb->zb_level, 5818 (u_longlong_t)zb->zb_blkid, 5819 blkbuf); 5820 } 5821 mutex_exit(&spa->spa_scrub_lock); 5822 5823 abd_free(zio->io_abd); 5824} 5825 5826static int 5827zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 5828 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 5829{ 5830 zdb_cb_t *zcb = arg; 5831 dmu_object_type_t type; 5832 boolean_t is_metadata; 5833 5834 if (zb->zb_level == ZB_DNODE_LEVEL) 5835 return (0); 5836 5837 if (dump_opt['b'] >= 5 && BP_GET_LOGICAL_BIRTH(bp) > 0) { 5838 char blkbuf[BP_SPRINTF_LEN]; 5839 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 5840 (void) printf("objset %llu object %llu " 5841 "level %lld offset 0x%llx %s\n", 5842 (u_longlong_t)zb->zb_objset, 5843 (u_longlong_t)zb->zb_object, 5844 (longlong_t)zb->zb_level, 5845 (u_longlong_t)blkid2offset(dnp, bp, zb), 5846 blkbuf); 5847 } 5848 5849 if (BP_IS_HOLE(bp) || BP_IS_REDACTED(bp)) 5850 return (0); 5851 5852 type = BP_GET_TYPE(bp); 5853 5854 zdb_count_block(zcb, zilog, bp, 5855 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 5856 5857 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 5858 5859 if (!BP_IS_EMBEDDED(bp) && 5860 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 5861 size_t size = BP_GET_PSIZE(bp); 5862 abd_t *abd = abd_alloc(size, B_FALSE); 5863 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 5864 5865 /* If it's an intent log block, failure is expected. */ 5866 if (zb->zb_level == ZB_ZIL_LEVEL) 5867 flags |= ZIO_FLAG_SPECULATIVE; 5868 5869 mutex_enter(&spa->spa_scrub_lock); 5870 while (spa->spa_load_verify_bytes > max_inflight_bytes) 5871 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 5872 spa->spa_load_verify_bytes += size; 5873 mutex_exit(&spa->spa_scrub_lock); 5874 5875 zio_nowait(zio_read(NULL, spa, bp, abd, size, 5876 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 5877 } 5878 5879 zcb->zcb_readfails = 0; 5880 5881 /* only call gethrtime() every 100 blocks */ 5882 static int iters; 5883 if (++iters > 100) 5884 iters = 0; 5885 else 5886 return (0); 5887 5888 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 5889 uint64_t now = gethrtime(); 5890 char buf[10]; 5891 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 5892 uint64_t kb_per_sec = 5893 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 5894 uint64_t sec_remaining = 5895 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 5896 5897 /* make sure nicenum has enough space */ 5898 _Static_assert(sizeof (buf) >= NN_NUMBUF_SZ, "buf truncated"); 5899 5900 zfs_nicebytes(bytes, buf, sizeof (buf)); 5901 (void) fprintf(stderr, 5902 "\r%5s completed (%4"PRIu64"MB/s) " 5903 "estimated time remaining: " 5904 "%"PRIu64"hr %02"PRIu64"min %02"PRIu64"sec ", 5905 buf, kb_per_sec / 1024, 5906 sec_remaining / 60 / 60, 5907 sec_remaining / 60 % 60, 5908 sec_remaining % 60); 5909 5910 zcb->zcb_lastprint = now; 5911 } 5912 5913 return (0); 5914} 5915 5916static void 5917zdb_leak(void *arg, uint64_t start, uint64_t size) 5918{ 5919 vdev_t *vd = arg; 5920 5921 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 5922 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 5923} 5924 5925static metaslab_ops_t zdb_metaslab_ops = { 5926 NULL /* alloc */ 5927}; 5928 5929static int 5930load_unflushed_svr_segs_cb(spa_t *spa, space_map_entry_t *sme, 5931 uint64_t txg, void *arg) 5932{ 5933 spa_vdev_removal_t *svr = arg; 5934 5935 uint64_t offset = sme->sme_offset; 5936 uint64_t size = sme->sme_run; 5937 5938 /* skip vdevs we don't care about */ 5939 if (sme->sme_vdev != svr->svr_vdev_id) 5940 return (0); 5941 5942 vdev_t *vd = vdev_lookup_top(spa, sme->sme_vdev); 5943 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 5944 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 5945 5946 if (txg < metaslab_unflushed_txg(ms)) 5947 return (0); 5948 5949 if (sme->sme_type == SM_ALLOC) 5950 range_tree_add(svr->svr_allocd_segs, offset, size); 5951 else 5952 range_tree_remove(svr->svr_allocd_segs, offset, size); 5953 5954 return (0); 5955} 5956 5957static void 5958claim_segment_impl_cb(uint64_t inner_offset, vdev_t *vd, uint64_t offset, 5959 uint64_t size, void *arg) 5960{ 5961 (void) inner_offset, (void) arg; 5962 5963 /* 5964 * This callback was called through a remap from 5965 * a device being removed. Therefore, the vdev that 5966 * this callback is applied to is a concrete 5967 * vdev. 5968 */ 5969 ASSERT(vdev_is_concrete(vd)); 5970 5971 VERIFY0(metaslab_claim_impl(vd, offset, size, 5972 spa_min_claim_txg(vd->vdev_spa))); 5973} 5974 5975static void 5976claim_segment_cb(void *arg, uint64_t offset, uint64_t size) 5977{ 5978 vdev_t *vd = arg; 5979 5980 vdev_indirect_ops.vdev_op_remap(vd, offset, size, 5981 claim_segment_impl_cb, NULL); 5982} 5983 5984/* 5985 * After accounting for all allocated blocks that are directly referenced, 5986 * we might have missed a reference to a block from a partially complete 5987 * (and thus unused) indirect mapping object. We perform a secondary pass 5988 * through the metaslabs we have already mapped and claim the destination 5989 * blocks. 5990 */ 5991static void 5992zdb_claim_removing(spa_t *spa, zdb_cb_t *zcb) 5993{ 5994 if (dump_opt['L']) 5995 return; 5996 5997 if (spa->spa_vdev_removal == NULL) 5998 return; 5999 6000 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6001 6002 spa_vdev_removal_t *svr = spa->spa_vdev_removal; 6003 vdev_t *vd = vdev_lookup_top(spa, svr->svr_vdev_id); 6004 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6005 6006 ASSERT0(range_tree_space(svr->svr_allocd_segs)); 6007 6008 range_tree_t *allocs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 0); 6009 for (uint64_t msi = 0; msi < vd->vdev_ms_count; msi++) { 6010 metaslab_t *msp = vd->vdev_ms[msi]; 6011 6012 ASSERT0(range_tree_space(allocs)); 6013 if (msp->ms_sm != NULL) 6014 VERIFY0(space_map_load(msp->ms_sm, allocs, SM_ALLOC)); 6015 range_tree_vacate(allocs, range_tree_add, svr->svr_allocd_segs); 6016 } 6017 range_tree_destroy(allocs); 6018 6019 iterate_through_spacemap_logs(spa, load_unflushed_svr_segs_cb, svr); 6020 6021 /* 6022 * Clear everything past what has been synced, 6023 * because we have not allocated mappings for 6024 * it yet. 6025 */ 6026 range_tree_clear(svr->svr_allocd_segs, 6027 vdev_indirect_mapping_max_offset(vim), 6028 vd->vdev_asize - vdev_indirect_mapping_max_offset(vim)); 6029 6030 zcb->zcb_removing_size += range_tree_space(svr->svr_allocd_segs); 6031 range_tree_vacate(svr->svr_allocd_segs, claim_segment_cb, vd); 6032 6033 spa_config_exit(spa, SCL_CONFIG, FTAG); 6034} 6035 6036static int 6037increment_indirect_mapping_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 6038 dmu_tx_t *tx) 6039{ 6040 (void) tx; 6041 zdb_cb_t *zcb = arg; 6042 spa_t *spa = zcb->zcb_spa; 6043 vdev_t *vd; 6044 const dva_t *dva = &bp->blk_dva[0]; 6045 6046 ASSERT(!bp_freed); 6047 ASSERT(!dump_opt['L']); 6048 ASSERT3U(BP_GET_NDVAS(bp), ==, 1); 6049 6050 spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER); 6051 vd = vdev_lookup_top(zcb->zcb_spa, DVA_GET_VDEV(dva)); 6052 ASSERT3P(vd, !=, NULL); 6053 spa_config_exit(spa, SCL_VDEV, FTAG); 6054 6055 ASSERT(vd->vdev_indirect_config.vic_mapping_object != 0); 6056 ASSERT3P(zcb->zcb_vd_obsolete_counts[vd->vdev_id], !=, NULL); 6057 6058 vdev_indirect_mapping_increment_obsolete_count( 6059 vd->vdev_indirect_mapping, 6060 DVA_GET_OFFSET(dva), DVA_GET_ASIZE(dva), 6061 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 6062 6063 return (0); 6064} 6065 6066static uint32_t * 6067zdb_load_obsolete_counts(vdev_t *vd) 6068{ 6069 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6070 spa_t *spa = vd->vdev_spa; 6071 spa_condensing_indirect_phys_t *scip = 6072 &spa->spa_condensing_indirect_phys; 6073 uint64_t obsolete_sm_object; 6074 uint32_t *counts; 6075 6076 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 6077 EQUIV(obsolete_sm_object != 0, vd->vdev_obsolete_sm != NULL); 6078 counts = vdev_indirect_mapping_load_obsolete_counts(vim); 6079 if (vd->vdev_obsolete_sm != NULL) { 6080 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 6081 vd->vdev_obsolete_sm); 6082 } 6083 if (scip->scip_vdev == vd->vdev_id && 6084 scip->scip_prev_obsolete_sm_object != 0) { 6085 space_map_t *prev_obsolete_sm = NULL; 6086 VERIFY0(space_map_open(&prev_obsolete_sm, spa->spa_meta_objset, 6087 scip->scip_prev_obsolete_sm_object, 0, vd->vdev_asize, 0)); 6088 vdev_indirect_mapping_load_obsolete_spacemap(vim, counts, 6089 prev_obsolete_sm); 6090 space_map_close(prev_obsolete_sm); 6091 } 6092 return (counts); 6093} 6094 6095static void 6096zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 6097{ 6098 ddt_bookmark_t ddb = {0}; 6099 ddt_entry_t dde; 6100 int error; 6101 int p; 6102 6103 ASSERT(!dump_opt['L']); 6104 6105 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 6106 blkptr_t blk; 6107 ddt_phys_t *ddp = dde.dde_phys; 6108 6109 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 6110 return; 6111 6112 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 6113 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 6114 VERIFY(ddt); 6115 6116 for (p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 6117 if (ddp->ddp_phys_birth == 0) 6118 continue; 6119 ddt_bp_create(ddb.ddb_checksum, 6120 &dde.dde_key, ddp, &blk); 6121 if (p == DDT_PHYS_DITTO) { 6122 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 6123 } else { 6124 zcb->zcb_dedup_asize += 6125 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 6126 zcb->zcb_dedup_blocks++; 6127 } 6128 } 6129 6130 ddt_enter(ddt); 6131 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 6132 ddt_exit(ddt); 6133 } 6134 6135 ASSERT(error == ENOENT); 6136} 6137 6138typedef struct checkpoint_sm_exclude_entry_arg { 6139 vdev_t *cseea_vd; 6140 uint64_t cseea_checkpoint_size; 6141} checkpoint_sm_exclude_entry_arg_t; 6142 6143static int 6144checkpoint_sm_exclude_entry_cb(space_map_entry_t *sme, void *arg) 6145{ 6146 checkpoint_sm_exclude_entry_arg_t *cseea = arg; 6147 vdev_t *vd = cseea->cseea_vd; 6148 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 6149 uint64_t end = sme->sme_offset + sme->sme_run; 6150 6151 ASSERT(sme->sme_type == SM_FREE); 6152 6153 /* 6154 * Since the vdev_checkpoint_sm exists in the vdev level 6155 * and the ms_sm space maps exist in the metaslab level, 6156 * an entry in the checkpoint space map could theoretically 6157 * cross the boundaries of the metaslab that it belongs. 6158 * 6159 * In reality, because of the way that we populate and 6160 * manipulate the checkpoint's space maps currently, 6161 * there shouldn't be any entries that cross metaslabs. 6162 * Hence the assertion below. 6163 * 6164 * That said, there is no fundamental requirement that 6165 * the checkpoint's space map entries should not cross 6166 * metaslab boundaries. So if needed we could add code 6167 * that handles metaslab-crossing segments in the future. 6168 */ 6169 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 6170 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 6171 6172 /* 6173 * By removing the entry from the allocated segments we 6174 * also verify that the entry is there to begin with. 6175 */ 6176 mutex_enter(&ms->ms_lock); 6177 range_tree_remove(ms->ms_allocatable, sme->sme_offset, sme->sme_run); 6178 mutex_exit(&ms->ms_lock); 6179 6180 cseea->cseea_checkpoint_size += sme->sme_run; 6181 return (0); 6182} 6183 6184static void 6185zdb_leak_init_vdev_exclude_checkpoint(vdev_t *vd, zdb_cb_t *zcb) 6186{ 6187 spa_t *spa = vd->vdev_spa; 6188 space_map_t *checkpoint_sm = NULL; 6189 uint64_t checkpoint_sm_obj; 6190 6191 /* 6192 * If there is no vdev_top_zap, we are in a pool whose 6193 * version predates the pool checkpoint feature. 6194 */ 6195 if (vd->vdev_top_zap == 0) 6196 return; 6197 6198 /* 6199 * If there is no reference of the vdev_checkpoint_sm in 6200 * the vdev_top_zap, then one of the following scenarios 6201 * is true: 6202 * 6203 * 1] There is no checkpoint 6204 * 2] There is a checkpoint, but no checkpointed blocks 6205 * have been freed yet 6206 * 3] The current vdev is indirect 6207 * 6208 * In these cases we return immediately. 6209 */ 6210 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 6211 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 6212 return; 6213 6214 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 6215 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, sizeof (uint64_t), 1, 6216 &checkpoint_sm_obj)); 6217 6218 checkpoint_sm_exclude_entry_arg_t cseea; 6219 cseea.cseea_vd = vd; 6220 cseea.cseea_checkpoint_size = 0; 6221 6222 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 6223 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 6224 6225 VERIFY0(space_map_iterate(checkpoint_sm, 6226 space_map_length(checkpoint_sm), 6227 checkpoint_sm_exclude_entry_cb, &cseea)); 6228 space_map_close(checkpoint_sm); 6229 6230 zcb->zcb_checkpoint_size += cseea.cseea_checkpoint_size; 6231} 6232 6233static void 6234zdb_leak_init_exclude_checkpoint(spa_t *spa, zdb_cb_t *zcb) 6235{ 6236 ASSERT(!dump_opt['L']); 6237 6238 vdev_t *rvd = spa->spa_root_vdev; 6239 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 6240 ASSERT3U(c, ==, rvd->vdev_child[c]->vdev_id); 6241 zdb_leak_init_vdev_exclude_checkpoint(rvd->vdev_child[c], zcb); 6242 } 6243} 6244 6245static int 6246count_unflushed_space_cb(spa_t *spa, space_map_entry_t *sme, 6247 uint64_t txg, void *arg) 6248{ 6249 int64_t *ualloc_space = arg; 6250 6251 uint64_t offset = sme->sme_offset; 6252 uint64_t vdev_id = sme->sme_vdev; 6253 6254 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 6255 if (!vdev_is_concrete(vd)) 6256 return (0); 6257 6258 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 6259 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 6260 6261 if (txg < metaslab_unflushed_txg(ms)) 6262 return (0); 6263 6264 if (sme->sme_type == SM_ALLOC) 6265 *ualloc_space += sme->sme_run; 6266 else 6267 *ualloc_space -= sme->sme_run; 6268 6269 return (0); 6270} 6271 6272static int64_t 6273get_unflushed_alloc_space(spa_t *spa) 6274{ 6275 if (dump_opt['L']) 6276 return (0); 6277 6278 int64_t ualloc_space = 0; 6279 iterate_through_spacemap_logs(spa, count_unflushed_space_cb, 6280 &ualloc_space); 6281 return (ualloc_space); 6282} 6283 6284static int 6285load_unflushed_cb(spa_t *spa, space_map_entry_t *sme, uint64_t txg, void *arg) 6286{ 6287 maptype_t *uic_maptype = arg; 6288 6289 uint64_t offset = sme->sme_offset; 6290 uint64_t size = sme->sme_run; 6291 uint64_t vdev_id = sme->sme_vdev; 6292 6293 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 6294 6295 /* skip indirect vdevs */ 6296 if (!vdev_is_concrete(vd)) 6297 return (0); 6298 6299 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 6300 6301 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 6302 ASSERT(*uic_maptype == SM_ALLOC || *uic_maptype == SM_FREE); 6303 6304 if (txg < metaslab_unflushed_txg(ms)) 6305 return (0); 6306 6307 if (*uic_maptype == sme->sme_type) 6308 range_tree_add(ms->ms_allocatable, offset, size); 6309 else 6310 range_tree_remove(ms->ms_allocatable, offset, size); 6311 6312 return (0); 6313} 6314 6315static void 6316load_unflushed_to_ms_allocatables(spa_t *spa, maptype_t maptype) 6317{ 6318 iterate_through_spacemap_logs(spa, load_unflushed_cb, &maptype); 6319} 6320 6321static void 6322load_concrete_ms_allocatable_trees(spa_t *spa, maptype_t maptype) 6323{ 6324 vdev_t *rvd = spa->spa_root_vdev; 6325 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 6326 vdev_t *vd = rvd->vdev_child[i]; 6327 6328 ASSERT3U(i, ==, vd->vdev_id); 6329 6330 if (vd->vdev_ops == &vdev_indirect_ops) 6331 continue; 6332 6333 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6334 metaslab_t *msp = vd->vdev_ms[m]; 6335 6336 (void) fprintf(stderr, 6337 "\rloading concrete vdev %llu, " 6338 "metaslab %llu of %llu ...", 6339 (longlong_t)vd->vdev_id, 6340 (longlong_t)msp->ms_id, 6341 (longlong_t)vd->vdev_ms_count); 6342 6343 mutex_enter(&msp->ms_lock); 6344 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 6345 6346 /* 6347 * We don't want to spend the CPU manipulating the 6348 * size-ordered tree, so clear the range_tree ops. 6349 */ 6350 msp->ms_allocatable->rt_ops = NULL; 6351 6352 if (msp->ms_sm != NULL) { 6353 VERIFY0(space_map_load(msp->ms_sm, 6354 msp->ms_allocatable, maptype)); 6355 } 6356 if (!msp->ms_loaded) 6357 msp->ms_loaded = B_TRUE; 6358 mutex_exit(&msp->ms_lock); 6359 } 6360 } 6361 6362 load_unflushed_to_ms_allocatables(spa, maptype); 6363} 6364 6365/* 6366 * vm_idxp is an in-out parameter which (for indirect vdevs) is the 6367 * index in vim_entries that has the first entry in this metaslab. 6368 * On return, it will be set to the first entry after this metaslab. 6369 */ 6370static void 6371load_indirect_ms_allocatable_tree(vdev_t *vd, metaslab_t *msp, 6372 uint64_t *vim_idxp) 6373{ 6374 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6375 6376 mutex_enter(&msp->ms_lock); 6377 range_tree_vacate(msp->ms_allocatable, NULL, NULL); 6378 6379 /* 6380 * We don't want to spend the CPU manipulating the 6381 * size-ordered tree, so clear the range_tree ops. 6382 */ 6383 msp->ms_allocatable->rt_ops = NULL; 6384 6385 for (; *vim_idxp < vdev_indirect_mapping_num_entries(vim); 6386 (*vim_idxp)++) { 6387 vdev_indirect_mapping_entry_phys_t *vimep = 6388 &vim->vim_entries[*vim_idxp]; 6389 uint64_t ent_offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6390 uint64_t ent_len = DVA_GET_ASIZE(&vimep->vimep_dst); 6391 ASSERT3U(ent_offset, >=, msp->ms_start); 6392 if (ent_offset >= msp->ms_start + msp->ms_size) 6393 break; 6394 6395 /* 6396 * Mappings do not cross metaslab boundaries, 6397 * because we create them by walking the metaslabs. 6398 */ 6399 ASSERT3U(ent_offset + ent_len, <=, 6400 msp->ms_start + msp->ms_size); 6401 range_tree_add(msp->ms_allocatable, ent_offset, ent_len); 6402 } 6403 6404 if (!msp->ms_loaded) 6405 msp->ms_loaded = B_TRUE; 6406 mutex_exit(&msp->ms_lock); 6407} 6408 6409static void 6410zdb_leak_init_prepare_indirect_vdevs(spa_t *spa, zdb_cb_t *zcb) 6411{ 6412 ASSERT(!dump_opt['L']); 6413 6414 vdev_t *rvd = spa->spa_root_vdev; 6415 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 6416 vdev_t *vd = rvd->vdev_child[c]; 6417 6418 ASSERT3U(c, ==, vd->vdev_id); 6419 6420 if (vd->vdev_ops != &vdev_indirect_ops) 6421 continue; 6422 6423 /* 6424 * Note: we don't check for mapping leaks on 6425 * removing vdevs because their ms_allocatable's 6426 * are used to look for leaks in allocated space. 6427 */ 6428 zcb->zcb_vd_obsolete_counts[c] = zdb_load_obsolete_counts(vd); 6429 6430 /* 6431 * Normally, indirect vdevs don't have any 6432 * metaslabs. We want to set them up for 6433 * zio_claim(). 6434 */ 6435 vdev_metaslab_group_create(vd); 6436 VERIFY0(vdev_metaslab_init(vd, 0)); 6437 6438 vdev_indirect_mapping_t *vim __maybe_unused = 6439 vd->vdev_indirect_mapping; 6440 uint64_t vim_idx = 0; 6441 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6442 6443 (void) fprintf(stderr, 6444 "\rloading indirect vdev %llu, " 6445 "metaslab %llu of %llu ...", 6446 (longlong_t)vd->vdev_id, 6447 (longlong_t)vd->vdev_ms[m]->ms_id, 6448 (longlong_t)vd->vdev_ms_count); 6449 6450 load_indirect_ms_allocatable_tree(vd, vd->vdev_ms[m], 6451 &vim_idx); 6452 } 6453 ASSERT3U(vim_idx, ==, vdev_indirect_mapping_num_entries(vim)); 6454 } 6455} 6456 6457static void 6458zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 6459{ 6460 zcb->zcb_spa = spa; 6461 6462 if (dump_opt['L']) 6463 return; 6464 6465 dsl_pool_t *dp = spa->spa_dsl_pool; 6466 vdev_t *rvd = spa->spa_root_vdev; 6467 6468 /* 6469 * We are going to be changing the meaning of the metaslab's 6470 * ms_allocatable. Ensure that the allocator doesn't try to 6471 * use the tree. 6472 */ 6473 spa->spa_normal_class->mc_ops = &zdb_metaslab_ops; 6474 spa->spa_log_class->mc_ops = &zdb_metaslab_ops; 6475 spa->spa_embedded_log_class->mc_ops = &zdb_metaslab_ops; 6476 6477 zcb->zcb_vd_obsolete_counts = 6478 umem_zalloc(rvd->vdev_children * sizeof (uint32_t *), 6479 UMEM_NOFAIL); 6480 6481 /* 6482 * For leak detection, we overload the ms_allocatable trees 6483 * to contain allocated segments instead of free segments. 6484 * As a result, we can't use the normal metaslab_load/unload 6485 * interfaces. 6486 */ 6487 zdb_leak_init_prepare_indirect_vdevs(spa, zcb); 6488 load_concrete_ms_allocatable_trees(spa, SM_ALLOC); 6489 6490 /* 6491 * On load_concrete_ms_allocatable_trees() we loaded all the 6492 * allocated entries from the ms_sm to the ms_allocatable for 6493 * each metaslab. If the pool has a checkpoint or is in the 6494 * middle of discarding a checkpoint, some of these blocks 6495 * may have been freed but their ms_sm may not have been 6496 * updated because they are referenced by the checkpoint. In 6497 * order to avoid false-positives during leak-detection, we 6498 * go through the vdev's checkpoint space map and exclude all 6499 * its entries from their relevant ms_allocatable. 6500 * 6501 * We also aggregate the space held by the checkpoint and add 6502 * it to zcb_checkpoint_size. 6503 * 6504 * Note that at this point we are also verifying that all the 6505 * entries on the checkpoint_sm are marked as allocated in 6506 * the ms_sm of their relevant metaslab. 6507 * [see comment in checkpoint_sm_exclude_entry_cb()] 6508 */ 6509 zdb_leak_init_exclude_checkpoint(spa, zcb); 6510 ASSERT3U(zcb->zcb_checkpoint_size, ==, spa_get_checkpoint_space(spa)); 6511 6512 /* for cleaner progress output */ 6513 (void) fprintf(stderr, "\n"); 6514 6515 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 6516 ASSERT(spa_feature_is_enabled(spa, 6517 SPA_FEATURE_DEVICE_REMOVAL)); 6518 (void) bpobj_iterate_nofree(&dp->dp_obsolete_bpobj, 6519 increment_indirect_mapping_cb, zcb, NULL); 6520 } 6521 6522 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 6523 zdb_ddt_leak_init(spa, zcb); 6524 spa_config_exit(spa, SCL_CONFIG, FTAG); 6525} 6526 6527static boolean_t 6528zdb_check_for_obsolete_leaks(vdev_t *vd, zdb_cb_t *zcb) 6529{ 6530 boolean_t leaks = B_FALSE; 6531 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 6532 uint64_t total_leaked = 0; 6533 boolean_t are_precise = B_FALSE; 6534 6535 ASSERT(vim != NULL); 6536 6537 for (uint64_t i = 0; i < vdev_indirect_mapping_num_entries(vim); i++) { 6538 vdev_indirect_mapping_entry_phys_t *vimep = 6539 &vim->vim_entries[i]; 6540 uint64_t obsolete_bytes = 0; 6541 uint64_t offset = DVA_MAPPING_GET_SRC_OFFSET(vimep); 6542 metaslab_t *msp = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 6543 6544 /* 6545 * This is not very efficient but it's easy to 6546 * verify correctness. 6547 */ 6548 for (uint64_t inner_offset = 0; 6549 inner_offset < DVA_GET_ASIZE(&vimep->vimep_dst); 6550 inner_offset += 1ULL << vd->vdev_ashift) { 6551 if (range_tree_contains(msp->ms_allocatable, 6552 offset + inner_offset, 1ULL << vd->vdev_ashift)) { 6553 obsolete_bytes += 1ULL << vd->vdev_ashift; 6554 } 6555 } 6556 6557 int64_t bytes_leaked = obsolete_bytes - 6558 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]; 6559 ASSERT3U(DVA_GET_ASIZE(&vimep->vimep_dst), >=, 6560 zcb->zcb_vd_obsolete_counts[vd->vdev_id][i]); 6561 6562 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6563 if (bytes_leaked != 0 && (are_precise || dump_opt['d'] >= 5)) { 6564 (void) printf("obsolete indirect mapping count " 6565 "mismatch on %llu:%llx:%llx : %llx bytes leaked\n", 6566 (u_longlong_t)vd->vdev_id, 6567 (u_longlong_t)DVA_MAPPING_GET_SRC_OFFSET(vimep), 6568 (u_longlong_t)DVA_GET_ASIZE(&vimep->vimep_dst), 6569 (u_longlong_t)bytes_leaked); 6570 } 6571 total_leaked += ABS(bytes_leaked); 6572 } 6573 6574 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 6575 if (!are_precise && total_leaked > 0) { 6576 int pct_leaked = total_leaked * 100 / 6577 vdev_indirect_mapping_bytes_mapped(vim); 6578 (void) printf("cannot verify obsolete indirect mapping " 6579 "counts of vdev %llu because precise feature was not " 6580 "enabled when it was removed: %d%% (%llx bytes) of mapping" 6581 "unreferenced\n", 6582 (u_longlong_t)vd->vdev_id, pct_leaked, 6583 (u_longlong_t)total_leaked); 6584 } else if (total_leaked > 0) { 6585 (void) printf("obsolete indirect mapping count mismatch " 6586 "for vdev %llu -- %llx total bytes mismatched\n", 6587 (u_longlong_t)vd->vdev_id, 6588 (u_longlong_t)total_leaked); 6589 leaks |= B_TRUE; 6590 } 6591 6592 vdev_indirect_mapping_free_obsolete_counts(vim, 6593 zcb->zcb_vd_obsolete_counts[vd->vdev_id]); 6594 zcb->zcb_vd_obsolete_counts[vd->vdev_id] = NULL; 6595 6596 return (leaks); 6597} 6598 6599static boolean_t 6600zdb_leak_fini(spa_t *spa, zdb_cb_t *zcb) 6601{ 6602 if (dump_opt['L']) 6603 return (B_FALSE); 6604 6605 boolean_t leaks = B_FALSE; 6606 vdev_t *rvd = spa->spa_root_vdev; 6607 for (unsigned c = 0; c < rvd->vdev_children; c++) { 6608 vdev_t *vd = rvd->vdev_child[c]; 6609 6610 if (zcb->zcb_vd_obsolete_counts[c] != NULL) { 6611 leaks |= zdb_check_for_obsolete_leaks(vd, zcb); 6612 } 6613 6614 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 6615 metaslab_t *msp = vd->vdev_ms[m]; 6616 ASSERT3P(msp->ms_group, ==, (msp->ms_group->mg_class == 6617 spa_embedded_log_class(spa)) ? 6618 vd->vdev_log_mg : vd->vdev_mg); 6619 6620 /* 6621 * ms_allocatable has been overloaded 6622 * to contain allocated segments. Now that 6623 * we finished traversing all blocks, any 6624 * block that remains in the ms_allocatable 6625 * represents an allocated block that we 6626 * did not claim during the traversal. 6627 * Claimed blocks would have been removed 6628 * from the ms_allocatable. For indirect 6629 * vdevs, space remaining in the tree 6630 * represents parts of the mapping that are 6631 * not referenced, which is not a bug. 6632 */ 6633 if (vd->vdev_ops == &vdev_indirect_ops) { 6634 range_tree_vacate(msp->ms_allocatable, 6635 NULL, NULL); 6636 } else { 6637 range_tree_vacate(msp->ms_allocatable, 6638 zdb_leak, vd); 6639 } 6640 if (msp->ms_loaded) { 6641 msp->ms_loaded = B_FALSE; 6642 } 6643 } 6644 } 6645 6646 umem_free(zcb->zcb_vd_obsolete_counts, 6647 rvd->vdev_children * sizeof (uint32_t *)); 6648 zcb->zcb_vd_obsolete_counts = NULL; 6649 6650 return (leaks); 6651} 6652 6653static int 6654count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 6655{ 6656 (void) tx; 6657 zdb_cb_t *zcb = arg; 6658 6659 if (dump_opt['b'] >= 5) { 6660 char blkbuf[BP_SPRINTF_LEN]; 6661 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 6662 (void) printf("[%s] %s\n", 6663 "deferred free", blkbuf); 6664 } 6665 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 6666 return (0); 6667} 6668 6669/* 6670 * Iterate over livelists which have been destroyed by the user but 6671 * are still present in the MOS, waiting to be freed 6672 */ 6673static void 6674iterate_deleted_livelists(spa_t *spa, ll_iter_t func, void *arg) 6675{ 6676 objset_t *mos = spa->spa_meta_objset; 6677 uint64_t zap_obj; 6678 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6679 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6680 if (err == ENOENT) 6681 return; 6682 ASSERT0(err); 6683 6684 zap_cursor_t zc; 6685 zap_attribute_t attr; 6686 dsl_deadlist_t ll; 6687 /* NULL out os prior to dsl_deadlist_open in case it's garbage */ 6688 ll.dl_os = NULL; 6689 for (zap_cursor_init(&zc, mos, zap_obj); 6690 zap_cursor_retrieve(&zc, &attr) == 0; 6691 (void) zap_cursor_advance(&zc)) { 6692 dsl_deadlist_open(&ll, mos, attr.za_first_integer); 6693 func(&ll, arg); 6694 dsl_deadlist_close(&ll); 6695 } 6696 zap_cursor_fini(&zc); 6697} 6698 6699static int 6700bpobj_count_block_cb(void *arg, const blkptr_t *bp, boolean_t bp_freed, 6701 dmu_tx_t *tx) 6702{ 6703 ASSERT(!bp_freed); 6704 return (count_block_cb(arg, bp, tx)); 6705} 6706 6707static int 6708livelist_entry_count_blocks_cb(void *args, dsl_deadlist_entry_t *dle) 6709{ 6710 zdb_cb_t *zbc = args; 6711 bplist_t blks; 6712 bplist_create(&blks); 6713 /* determine which blocks have been alloc'd but not freed */ 6714 VERIFY0(dsl_process_sub_livelist(&dle->dle_bpobj, &blks, NULL, NULL)); 6715 /* count those blocks */ 6716 (void) bplist_iterate(&blks, count_block_cb, zbc, NULL); 6717 bplist_destroy(&blks); 6718 return (0); 6719} 6720 6721static void 6722livelist_count_blocks(dsl_deadlist_t *ll, void *arg) 6723{ 6724 dsl_deadlist_iterate(ll, livelist_entry_count_blocks_cb, arg); 6725} 6726 6727/* 6728 * Count the blocks in the livelists that have been destroyed by the user 6729 * but haven't yet been freed. 6730 */ 6731static void 6732deleted_livelists_count_blocks(spa_t *spa, zdb_cb_t *zbc) 6733{ 6734 iterate_deleted_livelists(spa, livelist_count_blocks, zbc); 6735} 6736 6737static void 6738dump_livelist_cb(dsl_deadlist_t *ll, void *arg) 6739{ 6740 ASSERT3P(arg, ==, NULL); 6741 global_feature_count[SPA_FEATURE_LIVELIST]++; 6742 dump_blkptr_list(ll, "Deleted Livelist"); 6743 dsl_deadlist_iterate(ll, sublivelist_verify_lightweight, NULL); 6744} 6745 6746/* 6747 * Print out, register object references to, and increment feature counts for 6748 * livelists that have been destroyed by the user but haven't yet been freed. 6749 */ 6750static void 6751deleted_livelists_dump_mos(spa_t *spa) 6752{ 6753 uint64_t zap_obj; 6754 objset_t *mos = spa->spa_meta_objset; 6755 int err = zap_lookup(mos, DMU_POOL_DIRECTORY_OBJECT, 6756 DMU_POOL_DELETED_CLONES, sizeof (uint64_t), 1, &zap_obj); 6757 if (err == ENOENT) 6758 return; 6759 mos_obj_refd(zap_obj); 6760 iterate_deleted_livelists(spa, dump_livelist_cb, NULL); 6761} 6762 6763static int 6764zdb_brt_entry_compare(const void *zcn1, const void *zcn2) 6765{ 6766 const dva_t *dva1 = &((const zdb_brt_entry_t *)zcn1)->zbre_dva; 6767 const dva_t *dva2 = &((const zdb_brt_entry_t *)zcn2)->zbre_dva; 6768 int cmp; 6769 6770 cmp = TREE_CMP(DVA_GET_VDEV(dva1), DVA_GET_VDEV(dva2)); 6771 if (cmp == 0) 6772 cmp = TREE_CMP(DVA_GET_OFFSET(dva1), DVA_GET_OFFSET(dva2)); 6773 6774 return (cmp); 6775} 6776 6777static int 6778dump_block_stats(spa_t *spa) 6779{ 6780 zdb_cb_t *zcb; 6781 zdb_blkstats_t *zb, *tzb; 6782 uint64_t norm_alloc, norm_space, total_alloc, total_found; 6783 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 6784 TRAVERSE_NO_DECRYPT | TRAVERSE_HARD; 6785 boolean_t leaks = B_FALSE; 6786 int e, c, err; 6787 bp_embedded_type_t i; 6788 6789 zcb = umem_zalloc(sizeof (zdb_cb_t), UMEM_NOFAIL); 6790 6791 if (spa_feature_is_active(spa, SPA_FEATURE_BLOCK_CLONING)) { 6792 avl_create(&zcb->zcb_brt, zdb_brt_entry_compare, 6793 sizeof (zdb_brt_entry_t), 6794 offsetof(zdb_brt_entry_t, zbre_node)); 6795 zcb->zcb_brt_is_active = B_TRUE; 6796 } 6797 6798 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 6799 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 6800 (dump_opt['c'] == 1) ? "metadata " : "", 6801 dump_opt['c'] ? "checksums " : "", 6802 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 6803 !dump_opt['L'] ? "nothing leaked " : ""); 6804 6805 /* 6806 * When leak detection is enabled we load all space maps as SM_ALLOC 6807 * maps, then traverse the pool claiming each block we discover. If 6808 * the pool is perfectly consistent, the segment trees will be empty 6809 * when we're done. Anything left over is a leak; any block we can't 6810 * claim (because it's not part of any space map) is a double 6811 * allocation, reference to a freed block, or an unclaimed log block. 6812 * 6813 * When leak detection is disabled (-L option) we still traverse the 6814 * pool claiming each block we discover, but we skip opening any space 6815 * maps. 6816 */ 6817 zdb_leak_init(spa, zcb); 6818 6819 /* 6820 * If there's a deferred-free bplist, process that first. 6821 */ 6822 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 6823 bpobj_count_block_cb, zcb, NULL); 6824 6825 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 6826 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 6827 bpobj_count_block_cb, zcb, NULL); 6828 } 6829 6830 zdb_claim_removing(spa, zcb); 6831 6832 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 6833 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 6834 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 6835 zcb, NULL)); 6836 } 6837 6838 deleted_livelists_count_blocks(spa, zcb); 6839 6840 if (dump_opt['c'] > 1) 6841 flags |= TRAVERSE_PREFETCH_DATA; 6842 6843 zcb->zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 6844 zcb->zcb_totalasize += metaslab_class_get_alloc(spa_special_class(spa)); 6845 zcb->zcb_totalasize += metaslab_class_get_alloc(spa_dedup_class(spa)); 6846 zcb->zcb_totalasize += 6847 metaslab_class_get_alloc(spa_embedded_log_class(spa)); 6848 zcb->zcb_start = zcb->zcb_lastprint = gethrtime(); 6849 err = traverse_pool(spa, 0, flags, zdb_blkptr_cb, zcb); 6850 6851 /* 6852 * If we've traversed the data blocks then we need to wait for those 6853 * I/Os to complete. We leverage "The Godfather" zio to wait on 6854 * all async I/Os to complete. 6855 */ 6856 if (dump_opt['c']) { 6857 for (c = 0; c < max_ncpus; c++) { 6858 (void) zio_wait(spa->spa_async_zio_root[c]); 6859 spa->spa_async_zio_root[c] = zio_root(spa, NULL, NULL, 6860 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 6861 ZIO_FLAG_GODFATHER); 6862 } 6863 } 6864 ASSERT0(spa->spa_load_verify_bytes); 6865 6866 /* 6867 * Done after zio_wait() since zcb_haderrors is modified in 6868 * zdb_blkptr_done() 6869 */ 6870 zcb->zcb_haderrors |= err; 6871 6872 if (zcb->zcb_haderrors) { 6873 (void) printf("\nError counts:\n\n"); 6874 (void) printf("\t%5s %s\n", "errno", "count"); 6875 for (e = 0; e < 256; e++) { 6876 if (zcb->zcb_errors[e] != 0) { 6877 (void) printf("\t%5d %llu\n", 6878 e, (u_longlong_t)zcb->zcb_errors[e]); 6879 } 6880 } 6881 } 6882 6883 /* 6884 * Report any leaked segments. 6885 */ 6886 leaks |= zdb_leak_fini(spa, zcb); 6887 6888 tzb = &zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 6889 6890 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 6891 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 6892 6893 total_alloc = norm_alloc + 6894 metaslab_class_get_alloc(spa_log_class(spa)) + 6895 metaslab_class_get_alloc(spa_embedded_log_class(spa)) + 6896 metaslab_class_get_alloc(spa_special_class(spa)) + 6897 metaslab_class_get_alloc(spa_dedup_class(spa)) + 6898 get_unflushed_alloc_space(spa); 6899 total_found = 6900 tzb->zb_asize - zcb->zcb_dedup_asize - zcb->zcb_clone_asize + 6901 zcb->zcb_removing_size + zcb->zcb_checkpoint_size; 6902 6903 if (total_found == total_alloc && !dump_opt['L']) { 6904 (void) printf("\n\tNo leaks (block sum matches space" 6905 " maps exactly)\n"); 6906 } else if (!dump_opt['L']) { 6907 (void) printf("block traversal size %llu != alloc %llu " 6908 "(%s %lld)\n", 6909 (u_longlong_t)total_found, 6910 (u_longlong_t)total_alloc, 6911 (dump_opt['L']) ? "unreachable" : "leaked", 6912 (longlong_t)(total_alloc - total_found)); 6913 leaks = B_TRUE; 6914 } 6915 6916 if (tzb->zb_count == 0) { 6917 umem_free(zcb, sizeof (zdb_cb_t)); 6918 return (2); 6919 } 6920 6921 (void) printf("\n"); 6922 (void) printf("\t%-16s %14llu\n", "bp count:", 6923 (u_longlong_t)tzb->zb_count); 6924 (void) printf("\t%-16s %14llu\n", "ganged count:", 6925 (longlong_t)tzb->zb_gangs); 6926 (void) printf("\t%-16s %14llu avg: %6llu\n", "bp logical:", 6927 (u_longlong_t)tzb->zb_lsize, 6928 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 6929 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6930 "bp physical:", (u_longlong_t)tzb->zb_psize, 6931 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 6932 (double)tzb->zb_lsize / tzb->zb_psize); 6933 (void) printf("\t%-16s %14llu avg: %6llu compression: %6.2f\n", 6934 "bp allocated:", (u_longlong_t)tzb->zb_asize, 6935 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 6936 (double)tzb->zb_lsize / tzb->zb_asize); 6937 (void) printf("\t%-16s %14llu ref>1: %6llu deduplication: %6.2f\n", 6938 "bp deduped:", (u_longlong_t)zcb->zcb_dedup_asize, 6939 (u_longlong_t)zcb->zcb_dedup_blocks, 6940 (double)zcb->zcb_dedup_asize / tzb->zb_asize + 1.0); 6941 (void) printf("\t%-16s %14llu count: %6llu\n", 6942 "bp cloned:", (u_longlong_t)zcb->zcb_clone_asize, 6943 (u_longlong_t)zcb->zcb_clone_blocks); 6944 (void) printf("\t%-16s %14llu used: %5.2f%%\n", "Normal class:", 6945 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 6946 6947 if (spa_special_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6948 uint64_t alloc = metaslab_class_get_alloc( 6949 spa_special_class(spa)); 6950 uint64_t space = metaslab_class_get_space( 6951 spa_special_class(spa)); 6952 6953 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6954 "Special class", (u_longlong_t)alloc, 6955 100.0 * alloc / space); 6956 } 6957 6958 if (spa_dedup_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6959 uint64_t alloc = metaslab_class_get_alloc( 6960 spa_dedup_class(spa)); 6961 uint64_t space = metaslab_class_get_space( 6962 spa_dedup_class(spa)); 6963 6964 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6965 "Dedup class", (u_longlong_t)alloc, 6966 100.0 * alloc / space); 6967 } 6968 6969 if (spa_embedded_log_class(spa)->mc_allocator[0].mca_rotor != NULL) { 6970 uint64_t alloc = metaslab_class_get_alloc( 6971 spa_embedded_log_class(spa)); 6972 uint64_t space = metaslab_class_get_space( 6973 spa_embedded_log_class(spa)); 6974 6975 (void) printf("\t%-16s %14llu used: %5.2f%%\n", 6976 "Embedded log class", (u_longlong_t)alloc, 6977 100.0 * alloc / space); 6978 } 6979 6980 for (i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 6981 if (zcb->zcb_embedded_blocks[i] == 0) 6982 continue; 6983 (void) printf("\n"); 6984 (void) printf("\tadditional, non-pointer bps of type %u: " 6985 "%10llu\n", 6986 i, (u_longlong_t)zcb->zcb_embedded_blocks[i]); 6987 6988 if (dump_opt['b'] >= 3) { 6989 (void) printf("\t number of (compressed) bytes: " 6990 "number of bps\n"); 6991 dump_histogram(zcb->zcb_embedded_histogram[i], 6992 sizeof (zcb->zcb_embedded_histogram[i]) / 6993 sizeof (zcb->zcb_embedded_histogram[i][0]), 0); 6994 } 6995 } 6996 6997 if (tzb->zb_ditto_samevdev != 0) { 6998 (void) printf("\tDittoed blocks on same vdev: %llu\n", 6999 (longlong_t)tzb->zb_ditto_samevdev); 7000 } 7001 if (tzb->zb_ditto_same_ms != 0) { 7002 (void) printf("\tDittoed blocks in same metaslab: %llu\n", 7003 (longlong_t)tzb->zb_ditto_same_ms); 7004 } 7005 7006 for (uint64_t v = 0; v < spa->spa_root_vdev->vdev_children; v++) { 7007 vdev_t *vd = spa->spa_root_vdev->vdev_child[v]; 7008 vdev_indirect_mapping_t *vim = vd->vdev_indirect_mapping; 7009 7010 if (vim == NULL) { 7011 continue; 7012 } 7013 7014 char mem[32]; 7015 zdb_nicenum(vdev_indirect_mapping_num_entries(vim), 7016 mem, vdev_indirect_mapping_size(vim)); 7017 7018 (void) printf("\tindirect vdev id %llu has %llu segments " 7019 "(%s in memory)\n", 7020 (longlong_t)vd->vdev_id, 7021 (longlong_t)vdev_indirect_mapping_num_entries(vim), mem); 7022 } 7023 7024 if (dump_opt['b'] >= 2) { 7025 int l, t, level; 7026 char csize[32], lsize[32], psize[32], asize[32]; 7027 char avg[32], gang[32]; 7028 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 7029 "\t avg\t comp\t%%Total\tType\n"); 7030 7031 zfs_blkstat_t *mdstats = umem_zalloc(sizeof (zfs_blkstat_t), 7032 UMEM_NOFAIL); 7033 7034 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 7035 const char *typename; 7036 7037 /* make sure nicenum has enough space */ 7038 _Static_assert(sizeof (csize) >= NN_NUMBUF_SZ, 7039 "csize truncated"); 7040 _Static_assert(sizeof (lsize) >= NN_NUMBUF_SZ, 7041 "lsize truncated"); 7042 _Static_assert(sizeof (psize) >= NN_NUMBUF_SZ, 7043 "psize truncated"); 7044 _Static_assert(sizeof (asize) >= NN_NUMBUF_SZ, 7045 "asize truncated"); 7046 _Static_assert(sizeof (avg) >= NN_NUMBUF_SZ, 7047 "avg truncated"); 7048 _Static_assert(sizeof (gang) >= NN_NUMBUF_SZ, 7049 "gang truncated"); 7050 7051 if (t < DMU_OT_NUMTYPES) 7052 typename = dmu_ot[t].ot_name; 7053 else 7054 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 7055 7056 if (zcb->zcb_type[ZB_TOTAL][t].zb_asize == 0) { 7057 (void) printf("%6s\t%5s\t%5s\t%5s" 7058 "\t%5s\t%5s\t%6s\t%s\n", 7059 "-", 7060 "-", 7061 "-", 7062 "-", 7063 "-", 7064 "-", 7065 "-", 7066 typename); 7067 continue; 7068 } 7069 7070 for (l = ZB_TOTAL - 1; l >= -1; l--) { 7071 level = (l == -1 ? ZB_TOTAL : l); 7072 zb = &zcb->zcb_type[level][t]; 7073 7074 if (zb->zb_asize == 0) 7075 continue; 7076 7077 if (level != ZB_TOTAL && t < DMU_OT_NUMTYPES && 7078 (level > 0 || DMU_OT_IS_METADATA(t))) { 7079 mdstats->zb_count += zb->zb_count; 7080 mdstats->zb_lsize += zb->zb_lsize; 7081 mdstats->zb_psize += zb->zb_psize; 7082 mdstats->zb_asize += zb->zb_asize; 7083 mdstats->zb_gangs += zb->zb_gangs; 7084 } 7085 7086 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 7087 continue; 7088 7089 if (level == 0 && zb->zb_asize == 7090 zcb->zcb_type[ZB_TOTAL][t].zb_asize) 7091 continue; 7092 7093 zdb_nicenum(zb->zb_count, csize, 7094 sizeof (csize)); 7095 zdb_nicenum(zb->zb_lsize, lsize, 7096 sizeof (lsize)); 7097 zdb_nicenum(zb->zb_psize, psize, 7098 sizeof (psize)); 7099 zdb_nicenum(zb->zb_asize, asize, 7100 sizeof (asize)); 7101 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 7102 sizeof (avg)); 7103 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 7104 7105 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 7106 "\t%5.2f\t%6.2f\t", 7107 csize, lsize, psize, asize, avg, 7108 (double)zb->zb_lsize / zb->zb_psize, 7109 100.0 * zb->zb_asize / tzb->zb_asize); 7110 7111 if (level == ZB_TOTAL) 7112 (void) printf("%s\n", typename); 7113 else 7114 (void) printf(" L%d %s\n", 7115 level, typename); 7116 7117 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 7118 (void) printf("\t number of ganged " 7119 "blocks: %s\n", gang); 7120 } 7121 7122 if (dump_opt['b'] >= 4) { 7123 (void) printf("psize " 7124 "(in 512-byte sectors): " 7125 "number of blocks\n"); 7126 dump_histogram(zb->zb_psize_histogram, 7127 PSIZE_HISTO_SIZE, 0); 7128 } 7129 } 7130 } 7131 zdb_nicenum(mdstats->zb_count, csize, 7132 sizeof (csize)); 7133 zdb_nicenum(mdstats->zb_lsize, lsize, 7134 sizeof (lsize)); 7135 zdb_nicenum(mdstats->zb_psize, psize, 7136 sizeof (psize)); 7137 zdb_nicenum(mdstats->zb_asize, asize, 7138 sizeof (asize)); 7139 zdb_nicenum(mdstats->zb_asize / mdstats->zb_count, avg, 7140 sizeof (avg)); 7141 zdb_nicenum(mdstats->zb_gangs, gang, sizeof (gang)); 7142 7143 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 7144 "\t%5.2f\t%6.2f\t", 7145 csize, lsize, psize, asize, avg, 7146 (double)mdstats->zb_lsize / mdstats->zb_psize, 7147 100.0 * mdstats->zb_asize / tzb->zb_asize); 7148 (void) printf("%s\n", "Metadata Total"); 7149 7150 /* Output a table summarizing block sizes in the pool */ 7151 if (dump_opt['b'] >= 2) { 7152 dump_size_histograms(zcb); 7153 } 7154 7155 umem_free(mdstats, sizeof (zfs_blkstat_t)); 7156 } 7157 7158 (void) printf("\n"); 7159 7160 if (leaks) { 7161 umem_free(zcb, sizeof (zdb_cb_t)); 7162 return (2); 7163 } 7164 7165 if (zcb->zcb_haderrors) { 7166 umem_free(zcb, sizeof (zdb_cb_t)); 7167 return (3); 7168 } 7169 7170 umem_free(zcb, sizeof (zdb_cb_t)); 7171 return (0); 7172} 7173 7174typedef struct zdb_ddt_entry { 7175 /* key must be first for ddt_key_compare */ 7176 ddt_key_t zdde_key; 7177 uint64_t zdde_ref_blocks; 7178 uint64_t zdde_ref_lsize; 7179 uint64_t zdde_ref_psize; 7180 uint64_t zdde_ref_dsize; 7181 avl_node_t zdde_node; 7182} zdb_ddt_entry_t; 7183 7184static int 7185zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 7186 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 7187{ 7188 (void) zilog, (void) dnp; 7189 avl_tree_t *t = arg; 7190 avl_index_t where; 7191 zdb_ddt_entry_t *zdde, zdde_search; 7192 7193 if (zb->zb_level == ZB_DNODE_LEVEL || BP_IS_HOLE(bp) || 7194 BP_IS_EMBEDDED(bp)) 7195 return (0); 7196 7197 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 7198 (void) printf("traversing objset %llu, %llu objects, " 7199 "%lu blocks so far\n", 7200 (u_longlong_t)zb->zb_objset, 7201 (u_longlong_t)BP_GET_FILL(bp), 7202 avl_numnodes(t)); 7203 } 7204 7205 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 7206 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 7207 return (0); 7208 7209 ddt_key_fill(&zdde_search.zdde_key, bp); 7210 7211 zdde = avl_find(t, &zdde_search, &where); 7212 7213 if (zdde == NULL) { 7214 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 7215 zdde->zdde_key = zdde_search.zdde_key; 7216 avl_insert(t, zdde, where); 7217 } 7218 7219 zdde->zdde_ref_blocks += 1; 7220 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 7221 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 7222 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 7223 7224 return (0); 7225} 7226 7227static void 7228dump_simulated_ddt(spa_t *spa) 7229{ 7230 avl_tree_t t; 7231 void *cookie = NULL; 7232 zdb_ddt_entry_t *zdde; 7233 ddt_histogram_t ddh_total = {{{0}}}; 7234 ddt_stat_t dds_total = {0}; 7235 7236 avl_create(&t, ddt_key_compare, 7237 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 7238 7239 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 7240 7241 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | 7242 TRAVERSE_NO_DECRYPT, zdb_ddt_add_cb, &t); 7243 7244 spa_config_exit(spa, SCL_CONFIG, FTAG); 7245 7246 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 7247 ddt_stat_t dds; 7248 uint64_t refcnt = zdde->zdde_ref_blocks; 7249 ASSERT(refcnt != 0); 7250 7251 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 7252 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 7253 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 7254 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 7255 7256 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 7257 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 7258 dds.dds_ref_psize = zdde->zdde_ref_psize; 7259 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 7260 7261 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 7262 &dds, 0); 7263 7264 umem_free(zdde, sizeof (*zdde)); 7265 } 7266 7267 avl_destroy(&t); 7268 7269 ddt_histogram_stat(&dds_total, &ddh_total); 7270 7271 (void) printf("Simulated DDT histogram:\n"); 7272 7273 zpool_dump_ddt(&dds_total, &ddh_total); 7274 7275 dump_dedup_ratio(&dds_total); 7276} 7277 7278static int 7279verify_device_removal_feature_counts(spa_t *spa) 7280{ 7281 uint64_t dr_feature_refcount = 0; 7282 uint64_t oc_feature_refcount = 0; 7283 uint64_t indirect_vdev_count = 0; 7284 uint64_t precise_vdev_count = 0; 7285 uint64_t obsolete_counts_object_count = 0; 7286 uint64_t obsolete_sm_count = 0; 7287 uint64_t obsolete_counts_count = 0; 7288 uint64_t scip_count = 0; 7289 uint64_t obsolete_bpobj_count = 0; 7290 int ret = 0; 7291 7292 spa_condensing_indirect_phys_t *scip = 7293 &spa->spa_condensing_indirect_phys; 7294 if (scip->scip_next_mapping_object != 0) { 7295 vdev_t *vd = spa->spa_root_vdev->vdev_child[scip->scip_vdev]; 7296 ASSERT(scip->scip_prev_obsolete_sm_object != 0); 7297 ASSERT3P(vd->vdev_ops, ==, &vdev_indirect_ops); 7298 7299 (void) printf("Condensing indirect vdev %llu: new mapping " 7300 "object %llu, prev obsolete sm %llu\n", 7301 (u_longlong_t)scip->scip_vdev, 7302 (u_longlong_t)scip->scip_next_mapping_object, 7303 (u_longlong_t)scip->scip_prev_obsolete_sm_object); 7304 if (scip->scip_prev_obsolete_sm_object != 0) { 7305 space_map_t *prev_obsolete_sm = NULL; 7306 VERIFY0(space_map_open(&prev_obsolete_sm, 7307 spa->spa_meta_objset, 7308 scip->scip_prev_obsolete_sm_object, 7309 0, vd->vdev_asize, 0)); 7310 dump_spacemap(spa->spa_meta_objset, prev_obsolete_sm); 7311 (void) printf("\n"); 7312 space_map_close(prev_obsolete_sm); 7313 } 7314 7315 scip_count += 2; 7316 } 7317 7318 for (uint64_t i = 0; i < spa->spa_root_vdev->vdev_children; i++) { 7319 vdev_t *vd = spa->spa_root_vdev->vdev_child[i]; 7320 vdev_indirect_config_t *vic = &vd->vdev_indirect_config; 7321 7322 if (vic->vic_mapping_object != 0) { 7323 ASSERT(vd->vdev_ops == &vdev_indirect_ops || 7324 vd->vdev_removing); 7325 indirect_vdev_count++; 7326 7327 if (vd->vdev_indirect_mapping->vim_havecounts) { 7328 obsolete_counts_count++; 7329 } 7330 } 7331 7332 boolean_t are_precise; 7333 VERIFY0(vdev_obsolete_counts_are_precise(vd, &are_precise)); 7334 if (are_precise) { 7335 ASSERT(vic->vic_mapping_object != 0); 7336 precise_vdev_count++; 7337 } 7338 7339 uint64_t obsolete_sm_object; 7340 VERIFY0(vdev_obsolete_sm_object(vd, &obsolete_sm_object)); 7341 if (obsolete_sm_object != 0) { 7342 ASSERT(vic->vic_mapping_object != 0); 7343 obsolete_sm_count++; 7344 } 7345 } 7346 7347 (void) feature_get_refcount(spa, 7348 &spa_feature_table[SPA_FEATURE_DEVICE_REMOVAL], 7349 &dr_feature_refcount); 7350 (void) feature_get_refcount(spa, 7351 &spa_feature_table[SPA_FEATURE_OBSOLETE_COUNTS], 7352 &oc_feature_refcount); 7353 7354 if (dr_feature_refcount != indirect_vdev_count) { 7355 ret = 1; 7356 (void) printf("Number of indirect vdevs (%llu) " \ 7357 "does not match feature count (%llu)\n", 7358 (u_longlong_t)indirect_vdev_count, 7359 (u_longlong_t)dr_feature_refcount); 7360 } else { 7361 (void) printf("Verified device_removal feature refcount " \ 7362 "of %llu is correct\n", 7363 (u_longlong_t)dr_feature_refcount); 7364 } 7365 7366 if (zap_contains(spa_meta_objset(spa), DMU_POOL_DIRECTORY_OBJECT, 7367 DMU_POOL_OBSOLETE_BPOBJ) == 0) { 7368 obsolete_bpobj_count++; 7369 } 7370 7371 7372 obsolete_counts_object_count = precise_vdev_count; 7373 obsolete_counts_object_count += obsolete_sm_count; 7374 obsolete_counts_object_count += obsolete_counts_count; 7375 obsolete_counts_object_count += scip_count; 7376 obsolete_counts_object_count += obsolete_bpobj_count; 7377 obsolete_counts_object_count += remap_deadlist_count; 7378 7379 if (oc_feature_refcount != obsolete_counts_object_count) { 7380 ret = 1; 7381 (void) printf("Number of obsolete counts objects (%llu) " \ 7382 "does not match feature count (%llu)\n", 7383 (u_longlong_t)obsolete_counts_object_count, 7384 (u_longlong_t)oc_feature_refcount); 7385 (void) printf("pv:%llu os:%llu oc:%llu sc:%llu " 7386 "ob:%llu rd:%llu\n", 7387 (u_longlong_t)precise_vdev_count, 7388 (u_longlong_t)obsolete_sm_count, 7389 (u_longlong_t)obsolete_counts_count, 7390 (u_longlong_t)scip_count, 7391 (u_longlong_t)obsolete_bpobj_count, 7392 (u_longlong_t)remap_deadlist_count); 7393 } else { 7394 (void) printf("Verified indirect_refcount feature refcount " \ 7395 "of %llu is correct\n", 7396 (u_longlong_t)oc_feature_refcount); 7397 } 7398 return (ret); 7399} 7400 7401static void 7402zdb_set_skip_mmp(char *target) 7403{ 7404 spa_t *spa; 7405 7406 /* 7407 * Disable the activity check to allow examination of 7408 * active pools. 7409 */ 7410 mutex_enter(&spa_namespace_lock); 7411 if ((spa = spa_lookup(target)) != NULL) { 7412 spa->spa_import_flags |= ZFS_IMPORT_SKIP_MMP; 7413 } 7414 mutex_exit(&spa_namespace_lock); 7415} 7416 7417#define BOGUS_SUFFIX "_CHECKPOINTED_UNIVERSE" 7418/* 7419 * Import the checkpointed state of the pool specified by the target 7420 * parameter as readonly. The function also accepts a pool config 7421 * as an optional parameter, else it attempts to infer the config by 7422 * the name of the target pool. 7423 * 7424 * Note that the checkpointed state's pool name will be the name of 7425 * the original pool with the above suffix appended to it. In addition, 7426 * if the target is not a pool name (e.g. a path to a dataset) then 7427 * the new_path parameter is populated with the updated path to 7428 * reflect the fact that we are looking into the checkpointed state. 7429 * 7430 * The function returns a newly-allocated copy of the name of the 7431 * pool containing the checkpointed state. When this copy is no 7432 * longer needed it should be freed with free(3C). Same thing 7433 * applies to the new_path parameter if allocated. 7434 */ 7435static char * 7436import_checkpointed_state(char *target, nvlist_t *cfg, char **new_path) 7437{ 7438 int error = 0; 7439 char *poolname, *bogus_name = NULL; 7440 boolean_t freecfg = B_FALSE; 7441 7442 /* If the target is not a pool, the extract the pool name */ 7443 char *path_start = strchr(target, '/'); 7444 if (path_start != NULL) { 7445 size_t poolname_len = path_start - target; 7446 poolname = strndup(target, poolname_len); 7447 } else { 7448 poolname = target; 7449 } 7450 7451 if (cfg == NULL) { 7452 zdb_set_skip_mmp(poolname); 7453 error = spa_get_stats(poolname, &cfg, NULL, 0); 7454 if (error != 0) { 7455 fatal("Tried to read config of pool \"%s\" but " 7456 "spa_get_stats() failed with error %d\n", 7457 poolname, error); 7458 } 7459 freecfg = B_TRUE; 7460 } 7461 7462 if (asprintf(&bogus_name, "%s%s", poolname, BOGUS_SUFFIX) == -1) { 7463 if (target != poolname) 7464 free(poolname); 7465 return (NULL); 7466 } 7467 fnvlist_add_string(cfg, ZPOOL_CONFIG_POOL_NAME, bogus_name); 7468 7469 error = spa_import(bogus_name, cfg, NULL, 7470 ZFS_IMPORT_MISSING_LOG | ZFS_IMPORT_CHECKPOINT | 7471 ZFS_IMPORT_SKIP_MMP); 7472 if (freecfg) 7473 nvlist_free(cfg); 7474 if (error != 0) { 7475 fatal("Tried to import pool \"%s\" but spa_import() failed " 7476 "with error %d\n", bogus_name, error); 7477 } 7478 7479 if (new_path != NULL && path_start != NULL) { 7480 if (asprintf(new_path, "%s%s", bogus_name, path_start) == -1) { 7481 free(bogus_name); 7482 if (path_start != NULL) 7483 free(poolname); 7484 return (NULL); 7485 } 7486 } 7487 7488 if (target != poolname) 7489 free(poolname); 7490 7491 return (bogus_name); 7492} 7493 7494typedef struct verify_checkpoint_sm_entry_cb_arg { 7495 vdev_t *vcsec_vd; 7496 7497 /* the following fields are only used for printing progress */ 7498 uint64_t vcsec_entryid; 7499 uint64_t vcsec_num_entries; 7500} verify_checkpoint_sm_entry_cb_arg_t; 7501 7502#define ENTRIES_PER_PROGRESS_UPDATE 10000 7503 7504static int 7505verify_checkpoint_sm_entry_cb(space_map_entry_t *sme, void *arg) 7506{ 7507 verify_checkpoint_sm_entry_cb_arg_t *vcsec = arg; 7508 vdev_t *vd = vcsec->vcsec_vd; 7509 metaslab_t *ms = vd->vdev_ms[sme->sme_offset >> vd->vdev_ms_shift]; 7510 uint64_t end = sme->sme_offset + sme->sme_run; 7511 7512 ASSERT(sme->sme_type == SM_FREE); 7513 7514 if ((vcsec->vcsec_entryid % ENTRIES_PER_PROGRESS_UPDATE) == 0) { 7515 (void) fprintf(stderr, 7516 "\rverifying vdev %llu, space map entry %llu of %llu ...", 7517 (longlong_t)vd->vdev_id, 7518 (longlong_t)vcsec->vcsec_entryid, 7519 (longlong_t)vcsec->vcsec_num_entries); 7520 } 7521 vcsec->vcsec_entryid++; 7522 7523 /* 7524 * See comment in checkpoint_sm_exclude_entry_cb() 7525 */ 7526 VERIFY3U(sme->sme_offset, >=, ms->ms_start); 7527 VERIFY3U(end, <=, ms->ms_start + ms->ms_size); 7528 7529 /* 7530 * The entries in the vdev_checkpoint_sm should be marked as 7531 * allocated in the checkpointed state of the pool, therefore 7532 * their respective ms_allocateable trees should not contain them. 7533 */ 7534 mutex_enter(&ms->ms_lock); 7535 range_tree_verify_not_present(ms->ms_allocatable, 7536 sme->sme_offset, sme->sme_run); 7537 mutex_exit(&ms->ms_lock); 7538 7539 return (0); 7540} 7541 7542/* 7543 * Verify that all segments in the vdev_checkpoint_sm are allocated 7544 * according to the checkpoint's ms_sm (i.e. are not in the checkpoint's 7545 * ms_allocatable). 7546 * 7547 * Do so by comparing the checkpoint space maps (vdev_checkpoint_sm) of 7548 * each vdev in the current state of the pool to the metaslab space maps 7549 * (ms_sm) of the checkpointed state of the pool. 7550 * 7551 * Note that the function changes the state of the ms_allocatable 7552 * trees of the current spa_t. The entries of these ms_allocatable 7553 * trees are cleared out and then repopulated from with the free 7554 * entries of their respective ms_sm space maps. 7555 */ 7556static void 7557verify_checkpoint_vdev_spacemaps(spa_t *checkpoint, spa_t *current) 7558{ 7559 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7560 vdev_t *current_rvd = current->spa_root_vdev; 7561 7562 load_concrete_ms_allocatable_trees(checkpoint, SM_FREE); 7563 7564 for (uint64_t c = 0; c < ckpoint_rvd->vdev_children; c++) { 7565 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[c]; 7566 vdev_t *current_vd = current_rvd->vdev_child[c]; 7567 7568 space_map_t *checkpoint_sm = NULL; 7569 uint64_t checkpoint_sm_obj; 7570 7571 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7572 /* 7573 * Since we don't allow device removal in a pool 7574 * that has a checkpoint, we expect that all removed 7575 * vdevs were removed from the pool before the 7576 * checkpoint. 7577 */ 7578 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7579 continue; 7580 } 7581 7582 /* 7583 * If the checkpoint space map doesn't exist, then nothing 7584 * here is checkpointed so there's nothing to verify. 7585 */ 7586 if (current_vd->vdev_top_zap == 0 || 7587 zap_contains(spa_meta_objset(current), 7588 current_vd->vdev_top_zap, 7589 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7590 continue; 7591 7592 VERIFY0(zap_lookup(spa_meta_objset(current), 7593 current_vd->vdev_top_zap, VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7594 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7595 7596 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(current), 7597 checkpoint_sm_obj, 0, current_vd->vdev_asize, 7598 current_vd->vdev_ashift)); 7599 7600 verify_checkpoint_sm_entry_cb_arg_t vcsec; 7601 vcsec.vcsec_vd = ckpoint_vd; 7602 vcsec.vcsec_entryid = 0; 7603 vcsec.vcsec_num_entries = 7604 space_map_length(checkpoint_sm) / sizeof (uint64_t); 7605 VERIFY0(space_map_iterate(checkpoint_sm, 7606 space_map_length(checkpoint_sm), 7607 verify_checkpoint_sm_entry_cb, &vcsec)); 7608 if (dump_opt['m'] > 3) 7609 dump_spacemap(current->spa_meta_objset, checkpoint_sm); 7610 space_map_close(checkpoint_sm); 7611 } 7612 7613 /* 7614 * If we've added vdevs since we took the checkpoint, ensure 7615 * that their checkpoint space maps are empty. 7616 */ 7617 if (ckpoint_rvd->vdev_children < current_rvd->vdev_children) { 7618 for (uint64_t c = ckpoint_rvd->vdev_children; 7619 c < current_rvd->vdev_children; c++) { 7620 vdev_t *current_vd = current_rvd->vdev_child[c]; 7621 VERIFY3P(current_vd->vdev_checkpoint_sm, ==, NULL); 7622 } 7623 } 7624 7625 /* for cleaner progress output */ 7626 (void) fprintf(stderr, "\n"); 7627} 7628 7629/* 7630 * Verifies that all space that's allocated in the checkpoint is 7631 * still allocated in the current version, by checking that everything 7632 * in checkpoint's ms_allocatable (which is actually allocated, not 7633 * allocatable/free) is not present in current's ms_allocatable. 7634 * 7635 * Note that the function changes the state of the ms_allocatable 7636 * trees of both spas when called. The entries of all ms_allocatable 7637 * trees are cleared out and then repopulated from their respective 7638 * ms_sm space maps. In the checkpointed state we load the allocated 7639 * entries, and in the current state we load the free entries. 7640 */ 7641static void 7642verify_checkpoint_ms_spacemaps(spa_t *checkpoint, spa_t *current) 7643{ 7644 vdev_t *ckpoint_rvd = checkpoint->spa_root_vdev; 7645 vdev_t *current_rvd = current->spa_root_vdev; 7646 7647 load_concrete_ms_allocatable_trees(checkpoint, SM_ALLOC); 7648 load_concrete_ms_allocatable_trees(current, SM_FREE); 7649 7650 for (uint64_t i = 0; i < ckpoint_rvd->vdev_children; i++) { 7651 vdev_t *ckpoint_vd = ckpoint_rvd->vdev_child[i]; 7652 vdev_t *current_vd = current_rvd->vdev_child[i]; 7653 7654 if (ckpoint_vd->vdev_ops == &vdev_indirect_ops) { 7655 /* 7656 * See comment in verify_checkpoint_vdev_spacemaps() 7657 */ 7658 ASSERT3P(current_vd->vdev_ops, ==, &vdev_indirect_ops); 7659 continue; 7660 } 7661 7662 for (uint64_t m = 0; m < ckpoint_vd->vdev_ms_count; m++) { 7663 metaslab_t *ckpoint_msp = ckpoint_vd->vdev_ms[m]; 7664 metaslab_t *current_msp = current_vd->vdev_ms[m]; 7665 7666 (void) fprintf(stderr, 7667 "\rverifying vdev %llu of %llu, " 7668 "metaslab %llu of %llu ...", 7669 (longlong_t)current_vd->vdev_id, 7670 (longlong_t)current_rvd->vdev_children, 7671 (longlong_t)current_vd->vdev_ms[m]->ms_id, 7672 (longlong_t)current_vd->vdev_ms_count); 7673 7674 /* 7675 * We walk through the ms_allocatable trees that 7676 * are loaded with the allocated blocks from the 7677 * ms_sm spacemaps of the checkpoint. For each 7678 * one of these ranges we ensure that none of them 7679 * exists in the ms_allocatable trees of the 7680 * current state which are loaded with the ranges 7681 * that are currently free. 7682 * 7683 * This way we ensure that none of the blocks that 7684 * are part of the checkpoint were freed by mistake. 7685 */ 7686 range_tree_walk(ckpoint_msp->ms_allocatable, 7687 (range_tree_func_t *)range_tree_verify_not_present, 7688 current_msp->ms_allocatable); 7689 } 7690 } 7691 7692 /* for cleaner progress output */ 7693 (void) fprintf(stderr, "\n"); 7694} 7695 7696static void 7697verify_checkpoint_blocks(spa_t *spa) 7698{ 7699 ASSERT(!dump_opt['L']); 7700 7701 spa_t *checkpoint_spa; 7702 char *checkpoint_pool; 7703 int error = 0; 7704 7705 /* 7706 * We import the checkpointed state of the pool (under a different 7707 * name) so we can do verification on it against the current state 7708 * of the pool. 7709 */ 7710 checkpoint_pool = import_checkpointed_state(spa->spa_name, NULL, 7711 NULL); 7712 ASSERT(strcmp(spa->spa_name, checkpoint_pool) != 0); 7713 7714 error = spa_open(checkpoint_pool, &checkpoint_spa, FTAG); 7715 if (error != 0) { 7716 fatal("Tried to open pool \"%s\" but spa_open() failed with " 7717 "error %d\n", checkpoint_pool, error); 7718 } 7719 7720 /* 7721 * Ensure that ranges in the checkpoint space maps of each vdev 7722 * are allocated according to the checkpointed state's metaslab 7723 * space maps. 7724 */ 7725 verify_checkpoint_vdev_spacemaps(checkpoint_spa, spa); 7726 7727 /* 7728 * Ensure that allocated ranges in the checkpoint's metaslab 7729 * space maps remain allocated in the metaslab space maps of 7730 * the current state. 7731 */ 7732 verify_checkpoint_ms_spacemaps(checkpoint_spa, spa); 7733 7734 /* 7735 * Once we are done, we get rid of the checkpointed state. 7736 */ 7737 spa_close(checkpoint_spa, FTAG); 7738 free(checkpoint_pool); 7739} 7740 7741static void 7742dump_leftover_checkpoint_blocks(spa_t *spa) 7743{ 7744 vdev_t *rvd = spa->spa_root_vdev; 7745 7746 for (uint64_t i = 0; i < rvd->vdev_children; i++) { 7747 vdev_t *vd = rvd->vdev_child[i]; 7748 7749 space_map_t *checkpoint_sm = NULL; 7750 uint64_t checkpoint_sm_obj; 7751 7752 if (vd->vdev_top_zap == 0) 7753 continue; 7754 7755 if (zap_contains(spa_meta_objset(spa), vd->vdev_top_zap, 7756 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM) != 0) 7757 continue; 7758 7759 VERIFY0(zap_lookup(spa_meta_objset(spa), vd->vdev_top_zap, 7760 VDEV_TOP_ZAP_POOL_CHECKPOINT_SM, 7761 sizeof (uint64_t), 1, &checkpoint_sm_obj)); 7762 7763 VERIFY0(space_map_open(&checkpoint_sm, spa_meta_objset(spa), 7764 checkpoint_sm_obj, 0, vd->vdev_asize, vd->vdev_ashift)); 7765 dump_spacemap(spa->spa_meta_objset, checkpoint_sm); 7766 space_map_close(checkpoint_sm); 7767 } 7768} 7769 7770static int 7771verify_checkpoint(spa_t *spa) 7772{ 7773 uberblock_t checkpoint; 7774 int error; 7775 7776 if (!spa_feature_is_active(spa, SPA_FEATURE_POOL_CHECKPOINT)) 7777 return (0); 7778 7779 error = zap_lookup(spa->spa_meta_objset, DMU_POOL_DIRECTORY_OBJECT, 7780 DMU_POOL_ZPOOL_CHECKPOINT, sizeof (uint64_t), 7781 sizeof (uberblock_t) / sizeof (uint64_t), &checkpoint); 7782 7783 if (error == ENOENT && !dump_opt['L']) { 7784 /* 7785 * If the feature is active but the uberblock is missing 7786 * then we must be in the middle of discarding the 7787 * checkpoint. 7788 */ 7789 (void) printf("\nPartially discarded checkpoint " 7790 "state found:\n"); 7791 if (dump_opt['m'] > 3) 7792 dump_leftover_checkpoint_blocks(spa); 7793 return (0); 7794 } else if (error != 0) { 7795 (void) printf("lookup error %d when looking for " 7796 "checkpointed uberblock in MOS\n", error); 7797 return (error); 7798 } 7799 dump_uberblock(&checkpoint, "\nCheckpointed uberblock found:\n", "\n"); 7800 7801 if (checkpoint.ub_checkpoint_txg == 0) { 7802 (void) printf("\nub_checkpoint_txg not set in checkpointed " 7803 "uberblock\n"); 7804 error = 3; 7805 } 7806 7807 if (error == 0 && !dump_opt['L']) 7808 verify_checkpoint_blocks(spa); 7809 7810 return (error); 7811} 7812 7813static void 7814mos_leaks_cb(void *arg, uint64_t start, uint64_t size) 7815{ 7816 (void) arg; 7817 for (uint64_t i = start; i < size; i++) { 7818 (void) printf("MOS object %llu referenced but not allocated\n", 7819 (u_longlong_t)i); 7820 } 7821} 7822 7823static void 7824mos_obj_refd(uint64_t obj) 7825{ 7826 if (obj != 0 && mos_refd_objs != NULL) 7827 range_tree_add(mos_refd_objs, obj, 1); 7828} 7829 7830/* 7831 * Call on a MOS object that may already have been referenced. 7832 */ 7833static void 7834mos_obj_refd_multiple(uint64_t obj) 7835{ 7836 if (obj != 0 && mos_refd_objs != NULL && 7837 !range_tree_contains(mos_refd_objs, obj, 1)) 7838 range_tree_add(mos_refd_objs, obj, 1); 7839} 7840 7841static void 7842mos_leak_vdev_top_zap(vdev_t *vd) 7843{ 7844 uint64_t ms_flush_data_obj; 7845 int error = zap_lookup(spa_meta_objset(vd->vdev_spa), 7846 vd->vdev_top_zap, VDEV_TOP_ZAP_MS_UNFLUSHED_PHYS_TXGS, 7847 sizeof (ms_flush_data_obj), 1, &ms_flush_data_obj); 7848 if (error == ENOENT) 7849 return; 7850 ASSERT0(error); 7851 7852 mos_obj_refd(ms_flush_data_obj); 7853} 7854 7855static void 7856mos_leak_vdev(vdev_t *vd) 7857{ 7858 mos_obj_refd(vd->vdev_dtl_object); 7859 mos_obj_refd(vd->vdev_ms_array); 7860 mos_obj_refd(vd->vdev_indirect_config.vic_births_object); 7861 mos_obj_refd(vd->vdev_indirect_config.vic_mapping_object); 7862 mos_obj_refd(vd->vdev_leaf_zap); 7863 if (vd->vdev_checkpoint_sm != NULL) 7864 mos_obj_refd(vd->vdev_checkpoint_sm->sm_object); 7865 if (vd->vdev_indirect_mapping != NULL) { 7866 mos_obj_refd(vd->vdev_indirect_mapping-> 7867 vim_phys->vimp_counts_object); 7868 } 7869 if (vd->vdev_obsolete_sm != NULL) 7870 mos_obj_refd(vd->vdev_obsolete_sm->sm_object); 7871 7872 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 7873 metaslab_t *ms = vd->vdev_ms[m]; 7874 mos_obj_refd(space_map_object(ms->ms_sm)); 7875 } 7876 7877 if (vd->vdev_root_zap != 0) 7878 mos_obj_refd(vd->vdev_root_zap); 7879 7880 if (vd->vdev_top_zap != 0) { 7881 mos_obj_refd(vd->vdev_top_zap); 7882 mos_leak_vdev_top_zap(vd); 7883 } 7884 7885 for (uint64_t c = 0; c < vd->vdev_children; c++) { 7886 mos_leak_vdev(vd->vdev_child[c]); 7887 } 7888} 7889 7890static void 7891mos_leak_log_spacemaps(spa_t *spa) 7892{ 7893 uint64_t spacemap_zap; 7894 int error = zap_lookup(spa_meta_objset(spa), 7895 DMU_POOL_DIRECTORY_OBJECT, DMU_POOL_LOG_SPACEMAP_ZAP, 7896 sizeof (spacemap_zap), 1, &spacemap_zap); 7897 if (error == ENOENT) 7898 return; 7899 ASSERT0(error); 7900 7901 mos_obj_refd(spacemap_zap); 7902 for (spa_log_sm_t *sls = avl_first(&spa->spa_sm_logs_by_txg); 7903 sls; sls = AVL_NEXT(&spa->spa_sm_logs_by_txg, sls)) 7904 mos_obj_refd(sls->sls_sm_obj); 7905} 7906 7907static void 7908errorlog_count_refd(objset_t *mos, uint64_t errlog) 7909{ 7910 zap_cursor_t zc; 7911 zap_attribute_t za; 7912 for (zap_cursor_init(&zc, mos, errlog); 7913 zap_cursor_retrieve(&zc, &za) == 0; 7914 zap_cursor_advance(&zc)) { 7915 mos_obj_refd(za.za_first_integer); 7916 } 7917 zap_cursor_fini(&zc); 7918} 7919 7920static int 7921dump_mos_leaks(spa_t *spa) 7922{ 7923 int rv = 0; 7924 objset_t *mos = spa->spa_meta_objset; 7925 dsl_pool_t *dp = spa->spa_dsl_pool; 7926 7927 /* Visit and mark all referenced objects in the MOS */ 7928 7929 mos_obj_refd(DMU_POOL_DIRECTORY_OBJECT); 7930 mos_obj_refd(spa->spa_pool_props_object); 7931 mos_obj_refd(spa->spa_config_object); 7932 mos_obj_refd(spa->spa_ddt_stat_object); 7933 mos_obj_refd(spa->spa_feat_desc_obj); 7934 mos_obj_refd(spa->spa_feat_enabled_txg_obj); 7935 mos_obj_refd(spa->spa_feat_for_read_obj); 7936 mos_obj_refd(spa->spa_feat_for_write_obj); 7937 mos_obj_refd(spa->spa_history); 7938 mos_obj_refd(spa->spa_errlog_last); 7939 mos_obj_refd(spa->spa_errlog_scrub); 7940 7941 if (spa_feature_is_enabled(spa, SPA_FEATURE_HEAD_ERRLOG)) { 7942 errorlog_count_refd(mos, spa->spa_errlog_last); 7943 errorlog_count_refd(mos, spa->spa_errlog_scrub); 7944 } 7945 7946 mos_obj_refd(spa->spa_all_vdev_zaps); 7947 mos_obj_refd(spa->spa_dsl_pool->dp_bptree_obj); 7948 mos_obj_refd(spa->spa_dsl_pool->dp_tmp_userrefs_obj); 7949 mos_obj_refd(spa->spa_dsl_pool->dp_scan->scn_phys.scn_queue_obj); 7950 bpobj_count_refd(&spa->spa_deferred_bpobj); 7951 mos_obj_refd(dp->dp_empty_bpobj); 7952 bpobj_count_refd(&dp->dp_obsolete_bpobj); 7953 bpobj_count_refd(&dp->dp_free_bpobj); 7954 mos_obj_refd(spa->spa_l2cache.sav_object); 7955 mos_obj_refd(spa->spa_spares.sav_object); 7956 7957 if (spa->spa_syncing_log_sm != NULL) 7958 mos_obj_refd(spa->spa_syncing_log_sm->sm_object); 7959 mos_leak_log_spacemaps(spa); 7960 7961 mos_obj_refd(spa->spa_condensing_indirect_phys. 7962 scip_next_mapping_object); 7963 mos_obj_refd(spa->spa_condensing_indirect_phys. 7964 scip_prev_obsolete_sm_object); 7965 if (spa->spa_condensing_indirect_phys.scip_next_mapping_object != 0) { 7966 vdev_indirect_mapping_t *vim = 7967 vdev_indirect_mapping_open(mos, 7968 spa->spa_condensing_indirect_phys.scip_next_mapping_object); 7969 mos_obj_refd(vim->vim_phys->vimp_counts_object); 7970 vdev_indirect_mapping_close(vim); 7971 } 7972 deleted_livelists_dump_mos(spa); 7973 7974 if (dp->dp_origin_snap != NULL) { 7975 dsl_dataset_t *ds; 7976 7977 dsl_pool_config_enter(dp, FTAG); 7978 VERIFY0(dsl_dataset_hold_obj(dp, 7979 dsl_dataset_phys(dp->dp_origin_snap)->ds_next_snap_obj, 7980 FTAG, &ds)); 7981 count_ds_mos_objects(ds); 7982 dump_blkptr_list(&ds->ds_deadlist, "Deadlist"); 7983 dsl_dataset_rele(ds, FTAG); 7984 dsl_pool_config_exit(dp, FTAG); 7985 7986 count_ds_mos_objects(dp->dp_origin_snap); 7987 dump_blkptr_list(&dp->dp_origin_snap->ds_deadlist, "Deadlist"); 7988 } 7989 count_dir_mos_objects(dp->dp_mos_dir); 7990 if (dp->dp_free_dir != NULL) 7991 count_dir_mos_objects(dp->dp_free_dir); 7992 if (dp->dp_leak_dir != NULL) 7993 count_dir_mos_objects(dp->dp_leak_dir); 7994 7995 mos_leak_vdev(spa->spa_root_vdev); 7996 7997 for (uint64_t class = 0; class < DDT_CLASSES; class++) { 7998 for (uint64_t type = 0; type < DDT_TYPES; type++) { 7999 for (uint64_t cksum = 0; 8000 cksum < ZIO_CHECKSUM_FUNCTIONS; cksum++) { 8001 ddt_t *ddt = spa->spa_ddt[cksum]; 8002 if (!ddt) 8003 continue; 8004 mos_obj_refd(ddt->ddt_object[type][class]); 8005 } 8006 } 8007 } 8008 8009 if (spa->spa_brt != NULL) { 8010 brt_t *brt = spa->spa_brt; 8011 for (uint64_t vdevid = 0; vdevid < brt->brt_nvdevs; vdevid++) { 8012 brt_vdev_t *brtvd = &brt->brt_vdevs[vdevid]; 8013 if (brtvd != NULL && brtvd->bv_initiated) { 8014 mos_obj_refd(brtvd->bv_mos_brtvdev); 8015 mos_obj_refd(brtvd->bv_mos_entries); 8016 } 8017 } 8018 } 8019 8020 /* 8021 * Visit all allocated objects and make sure they are referenced. 8022 */ 8023 uint64_t object = 0; 8024 while (dmu_object_next(mos, &object, B_FALSE, 0) == 0) { 8025 if (range_tree_contains(mos_refd_objs, object, 1)) { 8026 range_tree_remove(mos_refd_objs, object, 1); 8027 } else { 8028 dmu_object_info_t doi; 8029 const char *name; 8030 VERIFY0(dmu_object_info(mos, object, &doi)); 8031 if (doi.doi_type & DMU_OT_NEWTYPE) { 8032 dmu_object_byteswap_t bswap = 8033 DMU_OT_BYTESWAP(doi.doi_type); 8034 name = dmu_ot_byteswap[bswap].ob_name; 8035 } else { 8036 name = dmu_ot[doi.doi_type].ot_name; 8037 } 8038 8039 (void) printf("MOS object %llu (%s) leaked\n", 8040 (u_longlong_t)object, name); 8041 rv = 2; 8042 } 8043 } 8044 (void) range_tree_walk(mos_refd_objs, mos_leaks_cb, NULL); 8045 if (!range_tree_is_empty(mos_refd_objs)) 8046 rv = 2; 8047 range_tree_vacate(mos_refd_objs, NULL, NULL); 8048 range_tree_destroy(mos_refd_objs); 8049 return (rv); 8050} 8051 8052typedef struct log_sm_obsolete_stats_arg { 8053 uint64_t lsos_current_txg; 8054 8055 uint64_t lsos_total_entries; 8056 uint64_t lsos_valid_entries; 8057 8058 uint64_t lsos_sm_entries; 8059 uint64_t lsos_valid_sm_entries; 8060} log_sm_obsolete_stats_arg_t; 8061 8062static int 8063log_spacemap_obsolete_stats_cb(spa_t *spa, space_map_entry_t *sme, 8064 uint64_t txg, void *arg) 8065{ 8066 log_sm_obsolete_stats_arg_t *lsos = arg; 8067 8068 uint64_t offset = sme->sme_offset; 8069 uint64_t vdev_id = sme->sme_vdev; 8070 8071 if (lsos->lsos_current_txg == 0) { 8072 /* this is the first log */ 8073 lsos->lsos_current_txg = txg; 8074 } else if (lsos->lsos_current_txg < txg) { 8075 /* we just changed log - print stats and reset */ 8076 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 8077 (u_longlong_t)lsos->lsos_valid_sm_entries, 8078 (u_longlong_t)lsos->lsos_sm_entries, 8079 (u_longlong_t)lsos->lsos_current_txg); 8080 lsos->lsos_valid_sm_entries = 0; 8081 lsos->lsos_sm_entries = 0; 8082 lsos->lsos_current_txg = txg; 8083 } 8084 ASSERT3U(lsos->lsos_current_txg, ==, txg); 8085 8086 lsos->lsos_sm_entries++; 8087 lsos->lsos_total_entries++; 8088 8089 vdev_t *vd = vdev_lookup_top(spa, vdev_id); 8090 if (!vdev_is_concrete(vd)) 8091 return (0); 8092 8093 metaslab_t *ms = vd->vdev_ms[offset >> vd->vdev_ms_shift]; 8094 ASSERT(sme->sme_type == SM_ALLOC || sme->sme_type == SM_FREE); 8095 8096 if (txg < metaslab_unflushed_txg(ms)) 8097 return (0); 8098 lsos->lsos_valid_sm_entries++; 8099 lsos->lsos_valid_entries++; 8100 return (0); 8101} 8102 8103static void 8104dump_log_spacemap_obsolete_stats(spa_t *spa) 8105{ 8106 if (!spa_feature_is_active(spa, SPA_FEATURE_LOG_SPACEMAP)) 8107 return; 8108 8109 log_sm_obsolete_stats_arg_t lsos = {0}; 8110 8111 (void) printf("Log Space Map Obsolete Entry Statistics:\n"); 8112 8113 iterate_through_spacemap_logs(spa, 8114 log_spacemap_obsolete_stats_cb, &lsos); 8115 8116 /* print stats for latest log */ 8117 (void) printf("%-8llu valid entries out of %-8llu - txg %llu\n", 8118 (u_longlong_t)lsos.lsos_valid_sm_entries, 8119 (u_longlong_t)lsos.lsos_sm_entries, 8120 (u_longlong_t)lsos.lsos_current_txg); 8121 8122 (void) printf("%-8llu valid entries out of %-8llu - total\n\n", 8123 (u_longlong_t)lsos.lsos_valid_entries, 8124 (u_longlong_t)lsos.lsos_total_entries); 8125} 8126 8127static void 8128dump_zpool(spa_t *spa) 8129{ 8130 dsl_pool_t *dp = spa_get_dsl(spa); 8131 int rc = 0; 8132 8133 if (dump_opt['y']) { 8134 livelist_metaslab_validate(spa); 8135 } 8136 8137 if (dump_opt['S']) { 8138 dump_simulated_ddt(spa); 8139 return; 8140 } 8141 8142 if (!dump_opt['e'] && dump_opt['C'] > 1) { 8143 (void) printf("\nCached configuration:\n"); 8144 dump_nvlist(spa->spa_config, 8); 8145 } 8146 8147 if (dump_opt['C']) 8148 dump_config(spa); 8149 8150 if (dump_opt['u']) 8151 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 8152 8153 if (dump_opt['D']) 8154 dump_all_ddts(spa); 8155 8156 if (dump_opt['T']) 8157 dump_brt(spa); 8158 8159 if (dump_opt['d'] > 2 || dump_opt['m']) 8160 dump_metaslabs(spa); 8161 if (dump_opt['M']) 8162 dump_metaslab_groups(spa, dump_opt['M'] > 1); 8163 if (dump_opt['d'] > 2 || dump_opt['m']) { 8164 dump_log_spacemaps(spa); 8165 dump_log_spacemap_obsolete_stats(spa); 8166 } 8167 8168 if (dump_opt['d'] || dump_opt['i']) { 8169 spa_feature_t f; 8170 mos_refd_objs = range_tree_create(NULL, RANGE_SEG64, NULL, 0, 8171 0); 8172 dump_objset(dp->dp_meta_objset); 8173 8174 if (dump_opt['d'] >= 3) { 8175 dsl_pool_t *dp = spa->spa_dsl_pool; 8176 dump_full_bpobj(&spa->spa_deferred_bpobj, 8177 "Deferred frees", 0); 8178 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 8179 dump_full_bpobj(&dp->dp_free_bpobj, 8180 "Pool snapshot frees", 0); 8181 } 8182 if (bpobj_is_open(&dp->dp_obsolete_bpobj)) { 8183 ASSERT(spa_feature_is_enabled(spa, 8184 SPA_FEATURE_DEVICE_REMOVAL)); 8185 dump_full_bpobj(&dp->dp_obsolete_bpobj, 8186 "Pool obsolete blocks", 0); 8187 } 8188 8189 if (spa_feature_is_active(spa, 8190 SPA_FEATURE_ASYNC_DESTROY)) { 8191 dump_bptree(spa->spa_meta_objset, 8192 dp->dp_bptree_obj, 8193 "Pool dataset frees"); 8194 } 8195 dump_dtl(spa->spa_root_vdev, 0); 8196 } 8197 8198 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) 8199 global_feature_count[f] = UINT64_MAX; 8200 global_feature_count[SPA_FEATURE_REDACTION_BOOKMARKS] = 0; 8201 global_feature_count[SPA_FEATURE_REDACTION_LIST_SPILL] = 0; 8202 global_feature_count[SPA_FEATURE_BOOKMARK_WRITTEN] = 0; 8203 global_feature_count[SPA_FEATURE_LIVELIST] = 0; 8204 8205 (void) dmu_objset_find(spa_name(spa), dump_one_objset, 8206 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 8207 8208 if (rc == 0 && !dump_opt['L']) 8209 rc = dump_mos_leaks(spa); 8210 8211 for (f = 0; f < SPA_FEATURES; f++) { 8212 uint64_t refcount; 8213 8214 uint64_t *arr; 8215 if (!(spa_feature_table[f].fi_flags & 8216 ZFEATURE_FLAG_PER_DATASET)) { 8217 if (global_feature_count[f] == UINT64_MAX) 8218 continue; 8219 if (!spa_feature_is_enabled(spa, f)) { 8220 ASSERT0(global_feature_count[f]); 8221 continue; 8222 } 8223 arr = global_feature_count; 8224 } else { 8225 if (!spa_feature_is_enabled(spa, f)) { 8226 ASSERT0(dataset_feature_count[f]); 8227 continue; 8228 } 8229 arr = dataset_feature_count; 8230 } 8231 if (feature_get_refcount(spa, &spa_feature_table[f], 8232 &refcount) == ENOTSUP) 8233 continue; 8234 if (arr[f] != refcount) { 8235 (void) printf("%s feature refcount mismatch: " 8236 "%lld consumers != %lld refcount\n", 8237 spa_feature_table[f].fi_uname, 8238 (longlong_t)arr[f], (longlong_t)refcount); 8239 rc = 2; 8240 } else { 8241 (void) printf("Verified %s feature refcount " 8242 "of %llu is correct\n", 8243 spa_feature_table[f].fi_uname, 8244 (longlong_t)refcount); 8245 } 8246 } 8247 8248 if (rc == 0) 8249 rc = verify_device_removal_feature_counts(spa); 8250 } 8251 8252 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 8253 rc = dump_block_stats(spa); 8254 8255 if (rc == 0) 8256 rc = verify_spacemap_refcounts(spa); 8257 8258 if (dump_opt['s']) 8259 show_pool_stats(spa); 8260 8261 if (dump_opt['h']) 8262 dump_history(spa); 8263 8264 if (rc == 0) 8265 rc = verify_checkpoint(spa); 8266 8267 if (rc != 0) { 8268 dump_debug_buffer(); 8269 zdb_exit(rc); 8270 } 8271} 8272 8273#define ZDB_FLAG_CHECKSUM 0x0001 8274#define ZDB_FLAG_DECOMPRESS 0x0002 8275#define ZDB_FLAG_BSWAP 0x0004 8276#define ZDB_FLAG_GBH 0x0008 8277#define ZDB_FLAG_INDIRECT 0x0010 8278#define ZDB_FLAG_RAW 0x0020 8279#define ZDB_FLAG_PRINT_BLKPTR 0x0040 8280#define ZDB_FLAG_VERBOSE 0x0080 8281 8282static int flagbits[256]; 8283static char flagbitstr[16]; 8284 8285static void 8286zdb_print_blkptr(const blkptr_t *bp, int flags) 8287{ 8288 char blkbuf[BP_SPRINTF_LEN]; 8289 8290 if (flags & ZDB_FLAG_BSWAP) 8291 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 8292 8293 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 8294 (void) printf("%s\n", blkbuf); 8295} 8296 8297static void 8298zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 8299{ 8300 int i; 8301 8302 for (i = 0; i < nbps; i++) 8303 zdb_print_blkptr(&bp[i], flags); 8304} 8305 8306static void 8307zdb_dump_gbh(void *buf, int flags) 8308{ 8309 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 8310} 8311 8312static void 8313zdb_dump_block_raw(void *buf, uint64_t size, int flags) 8314{ 8315 if (flags & ZDB_FLAG_BSWAP) 8316 byteswap_uint64_array(buf, size); 8317 VERIFY(write(fileno(stdout), buf, size) == size); 8318} 8319 8320static void 8321zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 8322{ 8323 uint64_t *d = (uint64_t *)buf; 8324 unsigned nwords = size / sizeof (uint64_t); 8325 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 8326 unsigned i, j; 8327 const char *hdr; 8328 char *c; 8329 8330 8331 if (do_bswap) 8332 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 8333 else 8334 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 8335 8336 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 8337 8338#ifdef _LITTLE_ENDIAN 8339 /* correct the endianness */ 8340 do_bswap = !do_bswap; 8341#endif 8342 for (i = 0; i < nwords; i += 2) { 8343 (void) printf("%06llx: %016llx %016llx ", 8344 (u_longlong_t)(i * sizeof (uint64_t)), 8345 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 8346 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 8347 8348 c = (char *)&d[i]; 8349 for (j = 0; j < 2 * sizeof (uint64_t); j++) 8350 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 8351 (void) printf("\n"); 8352 } 8353} 8354 8355/* 8356 * There are two acceptable formats: 8357 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 8358 * child[.child]* - For example: 0.1.1 8359 * 8360 * The second form can be used to specify arbitrary vdevs anywhere 8361 * in the hierarchy. For example, in a pool with a mirror of 8362 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 8363 */ 8364static vdev_t * 8365zdb_vdev_lookup(vdev_t *vdev, const char *path) 8366{ 8367 char *s, *p, *q; 8368 unsigned i; 8369 8370 if (vdev == NULL) 8371 return (NULL); 8372 8373 /* First, assume the x.x.x.x format */ 8374 i = strtoul(path, &s, 10); 8375 if (s == path || (s && *s != '.' && *s != '\0')) 8376 goto name; 8377 if (i >= vdev->vdev_children) 8378 return (NULL); 8379 8380 vdev = vdev->vdev_child[i]; 8381 if (s && *s == '\0') 8382 return (vdev); 8383 return (zdb_vdev_lookup(vdev, s+1)); 8384 8385name: 8386 for (i = 0; i < vdev->vdev_children; i++) { 8387 vdev_t *vc = vdev->vdev_child[i]; 8388 8389 if (vc->vdev_path == NULL) { 8390 vc = zdb_vdev_lookup(vc, path); 8391 if (vc == NULL) 8392 continue; 8393 else 8394 return (vc); 8395 } 8396 8397 p = strrchr(vc->vdev_path, '/'); 8398 p = p ? p + 1 : vc->vdev_path; 8399 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 8400 8401 if (strcmp(vc->vdev_path, path) == 0) 8402 return (vc); 8403 if (strcmp(p, path) == 0) 8404 return (vc); 8405 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 8406 return (vc); 8407 } 8408 8409 return (NULL); 8410} 8411 8412static int 8413name_from_objset_id(spa_t *spa, uint64_t objset_id, char *outstr) 8414{ 8415 dsl_dataset_t *ds; 8416 8417 dsl_pool_config_enter(spa->spa_dsl_pool, FTAG); 8418 int error = dsl_dataset_hold_obj(spa->spa_dsl_pool, objset_id, 8419 NULL, &ds); 8420 if (error != 0) { 8421 (void) fprintf(stderr, "failed to hold objset %llu: %s\n", 8422 (u_longlong_t)objset_id, strerror(error)); 8423 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 8424 return (error); 8425 } 8426 dsl_dataset_name(ds, outstr); 8427 dsl_dataset_rele(ds, NULL); 8428 dsl_pool_config_exit(spa->spa_dsl_pool, FTAG); 8429 return (0); 8430} 8431 8432static boolean_t 8433zdb_parse_block_sizes(char *sizes, uint64_t *lsize, uint64_t *psize) 8434{ 8435 char *s0, *s1, *tmp = NULL; 8436 8437 if (sizes == NULL) 8438 return (B_FALSE); 8439 8440 s0 = strtok_r(sizes, "/", &tmp); 8441 if (s0 == NULL) 8442 return (B_FALSE); 8443 s1 = strtok_r(NULL, "/", &tmp); 8444 *lsize = strtoull(s0, NULL, 16); 8445 *psize = s1 ? strtoull(s1, NULL, 16) : *lsize; 8446 return (*lsize >= *psize && *psize > 0); 8447} 8448 8449#define ZIO_COMPRESS_MASK(alg) (1ULL << (ZIO_COMPRESS_##alg)) 8450 8451static boolean_t 8452try_decompress_block(abd_t *pabd, uint64_t lsize, uint64_t psize, 8453 int flags, int cfunc, void *lbuf, void *lbuf2) 8454{ 8455 if (flags & ZDB_FLAG_VERBOSE) { 8456 (void) fprintf(stderr, 8457 "Trying %05llx -> %05llx (%s)\n", 8458 (u_longlong_t)psize, 8459 (u_longlong_t)lsize, 8460 zio_compress_table[cfunc].ci_name); 8461 } 8462 8463 /* 8464 * We set lbuf to all zeros and lbuf2 to all 8465 * ones, then decompress to both buffers and 8466 * compare their contents. This way we can 8467 * know if decompression filled exactly to 8468 * lsize or if it left some bytes unwritten. 8469 */ 8470 8471 memset(lbuf, 0x00, lsize); 8472 memset(lbuf2, 0xff, lsize); 8473 8474 if (zio_decompress_data(cfunc, pabd, 8475 lbuf, psize, lsize, NULL) == 0 && 8476 zio_decompress_data(cfunc, pabd, 8477 lbuf2, psize, lsize, NULL) == 0 && 8478 memcmp(lbuf, lbuf2, lsize) == 0) 8479 return (B_TRUE); 8480 return (B_FALSE); 8481} 8482 8483static uint64_t 8484zdb_decompress_block(abd_t *pabd, void *buf, void *lbuf, uint64_t lsize, 8485 uint64_t psize, int flags) 8486{ 8487 (void) buf; 8488 uint64_t orig_lsize = lsize; 8489 boolean_t tryzle = ((getenv("ZDB_NO_ZLE") == NULL)); 8490 boolean_t found = B_FALSE; 8491 /* 8492 * We don't know how the data was compressed, so just try 8493 * every decompress function at every inflated blocksize. 8494 */ 8495 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 8496 int cfuncs[ZIO_COMPRESS_FUNCTIONS] = { 0 }; 8497 int *cfuncp = cfuncs; 8498 uint64_t maxlsize = SPA_MAXBLOCKSIZE; 8499 uint64_t mask = ZIO_COMPRESS_MASK(ON) | ZIO_COMPRESS_MASK(OFF) | 8500 ZIO_COMPRESS_MASK(INHERIT) | ZIO_COMPRESS_MASK(EMPTY) | 8501 ZIO_COMPRESS_MASK(ZLE); 8502 *cfuncp++ = ZIO_COMPRESS_LZ4; 8503 *cfuncp++ = ZIO_COMPRESS_LZJB; 8504 mask |= ZIO_COMPRESS_MASK(LZ4) | ZIO_COMPRESS_MASK(LZJB); 8505 /* 8506 * Every gzip level has the same decompressor, no need to 8507 * run it 9 times per bruteforce attempt. 8508 */ 8509 mask |= ZIO_COMPRESS_MASK(GZIP_2) | ZIO_COMPRESS_MASK(GZIP_3); 8510 mask |= ZIO_COMPRESS_MASK(GZIP_4) | ZIO_COMPRESS_MASK(GZIP_5); 8511 mask |= ZIO_COMPRESS_MASK(GZIP_6) | ZIO_COMPRESS_MASK(GZIP_7); 8512 mask |= ZIO_COMPRESS_MASK(GZIP_8) | ZIO_COMPRESS_MASK(GZIP_9); 8513 for (int c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) 8514 if (((1ULL << c) & mask) == 0) 8515 *cfuncp++ = c; 8516 8517 /* 8518 * On the one hand, with SPA_MAXBLOCKSIZE at 16MB, this 8519 * could take a while and we should let the user know 8520 * we are not stuck. On the other hand, printing progress 8521 * info gets old after a while. User can specify 'v' flag 8522 * to see the progression. 8523 */ 8524 if (lsize == psize) 8525 lsize += SPA_MINBLOCKSIZE; 8526 else 8527 maxlsize = lsize; 8528 8529 for (; lsize <= maxlsize; lsize += SPA_MINBLOCKSIZE) { 8530 for (cfuncp = cfuncs; *cfuncp; cfuncp++) { 8531 if (try_decompress_block(pabd, lsize, psize, flags, 8532 *cfuncp, lbuf, lbuf2)) { 8533 found = B_TRUE; 8534 break; 8535 } 8536 } 8537 if (*cfuncp != 0) 8538 break; 8539 } 8540 if (!found && tryzle) { 8541 for (lsize = orig_lsize; lsize <= maxlsize; 8542 lsize += SPA_MINBLOCKSIZE) { 8543 if (try_decompress_block(pabd, lsize, psize, flags, 8544 ZIO_COMPRESS_ZLE, lbuf, lbuf2)) { 8545 *cfuncp = ZIO_COMPRESS_ZLE; 8546 found = B_TRUE; 8547 break; 8548 } 8549 } 8550 } 8551 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 8552 8553 if (*cfuncp == ZIO_COMPRESS_ZLE) { 8554 printf("\nZLE decompression was selected. If you " 8555 "suspect the results are wrong,\ntry avoiding ZLE " 8556 "by setting and exporting ZDB_NO_ZLE=\"true\"\n"); 8557 } 8558 8559 return (lsize > maxlsize ? -1 : lsize); 8560} 8561 8562/* 8563 * Read a block from a pool and print it out. The syntax of the 8564 * block descriptor is: 8565 * 8566 * pool:vdev_specifier:offset:[lsize/]psize[:flags] 8567 * 8568 * pool - The name of the pool you wish to read from 8569 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 8570 * offset - offset, in hex, in bytes 8571 * size - Amount of data to read, in hex, in bytes 8572 * flags - A string of characters specifying options 8573 * b: Decode a blkptr at given offset within block 8574 * c: Calculate and display checksums 8575 * d: Decompress data before dumping 8576 * e: Byteswap data before dumping 8577 * g: Display data as a gang block header 8578 * i: Display as an indirect block 8579 * r: Dump raw data to stdout 8580 * v: Verbose 8581 * 8582 */ 8583static void 8584zdb_read_block(char *thing, spa_t *spa) 8585{ 8586 blkptr_t blk, *bp = &blk; 8587 dva_t *dva = bp->blk_dva; 8588 int flags = 0; 8589 uint64_t offset = 0, psize = 0, lsize = 0, blkptr_offset = 0; 8590 zio_t *zio; 8591 vdev_t *vd; 8592 abd_t *pabd; 8593 void *lbuf, *buf; 8594 char *s, *p, *dup, *flagstr, *sizes, *tmp = NULL; 8595 const char *vdev, *errmsg = NULL; 8596 int i, error; 8597 boolean_t borrowed = B_FALSE, found = B_FALSE; 8598 8599 dup = strdup(thing); 8600 s = strtok_r(dup, ":", &tmp); 8601 vdev = s ?: ""; 8602 s = strtok_r(NULL, ":", &tmp); 8603 offset = strtoull(s ? s : "", NULL, 16); 8604 sizes = strtok_r(NULL, ":", &tmp); 8605 s = strtok_r(NULL, ":", &tmp); 8606 flagstr = strdup(s ?: ""); 8607 8608 if (!zdb_parse_block_sizes(sizes, &lsize, &psize)) 8609 errmsg = "invalid size(s)"; 8610 if (!IS_P2ALIGNED(psize, DEV_BSIZE) || !IS_P2ALIGNED(lsize, DEV_BSIZE)) 8611 errmsg = "size must be a multiple of sector size"; 8612 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 8613 errmsg = "offset must be a multiple of sector size"; 8614 if (errmsg) { 8615 (void) printf("Invalid block specifier: %s - %s\n", 8616 thing, errmsg); 8617 goto done; 8618 } 8619 8620 tmp = NULL; 8621 for (s = strtok_r(flagstr, ":", &tmp); 8622 s != NULL; 8623 s = strtok_r(NULL, ":", &tmp)) { 8624 for (i = 0; i < strlen(flagstr); i++) { 8625 int bit = flagbits[(uchar_t)flagstr[i]]; 8626 8627 if (bit == 0) { 8628 (void) printf("***Ignoring flag: %c\n", 8629 (uchar_t)flagstr[i]); 8630 continue; 8631 } 8632 found = B_TRUE; 8633 flags |= bit; 8634 8635 p = &flagstr[i + 1]; 8636 if (*p != ':' && *p != '\0') { 8637 int j = 0, nextbit = flagbits[(uchar_t)*p]; 8638 char *end, offstr[8] = { 0 }; 8639 if ((bit == ZDB_FLAG_PRINT_BLKPTR) && 8640 (nextbit == 0)) { 8641 /* look ahead to isolate the offset */ 8642 while (nextbit == 0 && 8643 strchr(flagbitstr, *p) == NULL) { 8644 offstr[j] = *p; 8645 j++; 8646 if (i + j > strlen(flagstr)) 8647 break; 8648 p++; 8649 nextbit = flagbits[(uchar_t)*p]; 8650 } 8651 blkptr_offset = strtoull(offstr, &end, 8652 16); 8653 i += j; 8654 } else if (nextbit == 0) { 8655 (void) printf("***Ignoring flag arg:" 8656 " '%c'\n", (uchar_t)*p); 8657 } 8658 } 8659 } 8660 } 8661 if (blkptr_offset % sizeof (blkptr_t)) { 8662 printf("Block pointer offset 0x%llx " 8663 "must be divisible by 0x%x\n", 8664 (longlong_t)blkptr_offset, (int)sizeof (blkptr_t)); 8665 goto done; 8666 } 8667 if (found == B_FALSE && strlen(flagstr) > 0) { 8668 printf("Invalid flag arg: '%s'\n", flagstr); 8669 goto done; 8670 } 8671 8672 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 8673 if (vd == NULL) { 8674 (void) printf("***Invalid vdev: %s\n", vdev); 8675 goto done; 8676 } else { 8677 if (vd->vdev_path) 8678 (void) fprintf(stderr, "Found vdev: %s\n", 8679 vd->vdev_path); 8680 else 8681 (void) fprintf(stderr, "Found vdev type: %s\n", 8682 vd->vdev_ops->vdev_op_type); 8683 } 8684 8685 pabd = abd_alloc_for_io(SPA_MAXBLOCKSIZE, B_FALSE); 8686 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 8687 8688 BP_ZERO(bp); 8689 8690 DVA_SET_VDEV(&dva[0], vd->vdev_id); 8691 DVA_SET_OFFSET(&dva[0], offset); 8692 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 8693 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 8694 8695 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 8696 8697 BP_SET_LSIZE(bp, lsize); 8698 BP_SET_PSIZE(bp, psize); 8699 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 8700 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 8701 BP_SET_TYPE(bp, DMU_OT_NONE); 8702 BP_SET_LEVEL(bp, 0); 8703 BP_SET_DEDUP(bp, 0); 8704 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 8705 8706 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8707 zio = zio_root(spa, NULL, NULL, 0); 8708 8709 if (vd == vd->vdev_top) { 8710 /* 8711 * Treat this as a normal block read. 8712 */ 8713 zio_nowait(zio_read(zio, spa, bp, pabd, psize, NULL, NULL, 8714 ZIO_PRIORITY_SYNC_READ, 8715 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 8716 } else { 8717 /* 8718 * Treat this as a vdev child I/O. 8719 */ 8720 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pabd, 8721 psize, ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 8722 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 8723 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | ZIO_FLAG_OPTIONAL, 8724 NULL, NULL)); 8725 } 8726 8727 error = zio_wait(zio); 8728 spa_config_exit(spa, SCL_STATE, FTAG); 8729 8730 if (error) { 8731 (void) printf("Read of %s failed, error: %d\n", thing, error); 8732 goto out; 8733 } 8734 8735 uint64_t orig_lsize = lsize; 8736 buf = lbuf; 8737 if (flags & ZDB_FLAG_DECOMPRESS) { 8738 lsize = zdb_decompress_block(pabd, buf, lbuf, 8739 lsize, psize, flags); 8740 if (lsize == -1) { 8741 (void) printf("Decompress of %s failed\n", thing); 8742 goto out; 8743 } 8744 } else { 8745 buf = abd_borrow_buf_copy(pabd, lsize); 8746 borrowed = B_TRUE; 8747 } 8748 /* 8749 * Try to detect invalid block pointer. If invalid, try 8750 * decompressing. 8751 */ 8752 if ((flags & ZDB_FLAG_PRINT_BLKPTR || flags & ZDB_FLAG_INDIRECT) && 8753 !(flags & ZDB_FLAG_DECOMPRESS)) { 8754 const blkptr_t *b = (const blkptr_t *)(void *) 8755 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8756 if (zfs_blkptr_verify(spa, b, 8757 BLK_CONFIG_NEEDED, BLK_VERIFY_ONLY) == B_FALSE) { 8758 abd_return_buf_copy(pabd, buf, lsize); 8759 borrowed = B_FALSE; 8760 buf = lbuf; 8761 lsize = zdb_decompress_block(pabd, buf, 8762 lbuf, lsize, psize, flags); 8763 b = (const blkptr_t *)(void *) 8764 ((uintptr_t)buf + (uintptr_t)blkptr_offset); 8765 if (lsize == -1 || zfs_blkptr_verify(spa, b, 8766 BLK_CONFIG_NEEDED, BLK_VERIFY_LOG) == B_FALSE) { 8767 printf("invalid block pointer at this DVA\n"); 8768 goto out; 8769 } 8770 } 8771 } 8772 8773 if (flags & ZDB_FLAG_PRINT_BLKPTR) 8774 zdb_print_blkptr((blkptr_t *)(void *) 8775 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 8776 else if (flags & ZDB_FLAG_RAW) 8777 zdb_dump_block_raw(buf, lsize, flags); 8778 else if (flags & ZDB_FLAG_INDIRECT) 8779 zdb_dump_indirect((blkptr_t *)buf, 8780 orig_lsize / sizeof (blkptr_t), flags); 8781 else if (flags & ZDB_FLAG_GBH) 8782 zdb_dump_gbh(buf, flags); 8783 else 8784 zdb_dump_block(thing, buf, lsize, flags); 8785 8786 /* 8787 * If :c was specified, iterate through the checksum table to 8788 * calculate and display each checksum for our specified 8789 * DVA and length. 8790 */ 8791 if ((flags & ZDB_FLAG_CHECKSUM) && !(flags & ZDB_FLAG_RAW) && 8792 !(flags & ZDB_FLAG_GBH)) { 8793 zio_t *czio; 8794 (void) printf("\n"); 8795 for (enum zio_checksum ck = ZIO_CHECKSUM_LABEL; 8796 ck < ZIO_CHECKSUM_FUNCTIONS; ck++) { 8797 8798 if ((zio_checksum_table[ck].ci_flags & 8799 ZCHECKSUM_FLAG_EMBEDDED) || 8800 ck == ZIO_CHECKSUM_NOPARITY) { 8801 continue; 8802 } 8803 BP_SET_CHECKSUM(bp, ck); 8804 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 8805 czio = zio_root(spa, NULL, NULL, ZIO_FLAG_CANFAIL); 8806 if (vd == vd->vdev_top) { 8807 zio_nowait(zio_read(czio, spa, bp, pabd, psize, 8808 NULL, NULL, 8809 ZIO_PRIORITY_SYNC_READ, 8810 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8811 ZIO_FLAG_DONT_RETRY, NULL)); 8812 } else { 8813 zio_nowait(zio_vdev_child_io(czio, bp, vd, 8814 offset, pabd, psize, ZIO_TYPE_READ, 8815 ZIO_PRIORITY_SYNC_READ, 8816 ZIO_FLAG_DONT_PROPAGATE | 8817 ZIO_FLAG_DONT_RETRY | 8818 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW | 8819 ZIO_FLAG_SPECULATIVE | 8820 ZIO_FLAG_OPTIONAL, NULL, NULL)); 8821 } 8822 error = zio_wait(czio); 8823 if (error == 0 || error == ECKSUM) { 8824 zio_t *ck_zio = zio_null(NULL, spa, NULL, 8825 NULL, NULL, 0); 8826 ck_zio->io_offset = 8827 DVA_GET_OFFSET(&bp->blk_dva[0]); 8828 ck_zio->io_bp = bp; 8829 zio_checksum_compute(ck_zio, ck, pabd, lsize); 8830 printf( 8831 "%12s\t" 8832 "cksum=%016llx:%016llx:%016llx:%016llx\n", 8833 zio_checksum_table[ck].ci_name, 8834 (u_longlong_t)bp->blk_cksum.zc_word[0], 8835 (u_longlong_t)bp->blk_cksum.zc_word[1], 8836 (u_longlong_t)bp->blk_cksum.zc_word[2], 8837 (u_longlong_t)bp->blk_cksum.zc_word[3]); 8838 zio_wait(ck_zio); 8839 } else { 8840 printf("error %d reading block\n", error); 8841 } 8842 spa_config_exit(spa, SCL_STATE, FTAG); 8843 } 8844 } 8845 8846 if (borrowed) 8847 abd_return_buf_copy(pabd, buf, lsize); 8848 8849out: 8850 abd_free(pabd); 8851 umem_free(lbuf, SPA_MAXBLOCKSIZE); 8852done: 8853 free(flagstr); 8854 free(dup); 8855} 8856 8857static void 8858zdb_embedded_block(char *thing) 8859{ 8860 blkptr_t bp = {{{{0}}}}; 8861 unsigned long long *words = (void *)&bp; 8862 char *buf; 8863 int err; 8864 8865 err = sscanf(thing, "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx:" 8866 "%llx:%llx:%llx:%llx:%llx:%llx:%llx:%llx", 8867 words + 0, words + 1, words + 2, words + 3, 8868 words + 4, words + 5, words + 6, words + 7, 8869 words + 8, words + 9, words + 10, words + 11, 8870 words + 12, words + 13, words + 14, words + 15); 8871 if (err != 16) { 8872 (void) fprintf(stderr, "invalid input format\n"); 8873 zdb_exit(1); 8874 } 8875 ASSERT3U(BPE_GET_LSIZE(&bp), <=, SPA_MAXBLOCKSIZE); 8876 buf = malloc(SPA_MAXBLOCKSIZE); 8877 if (buf == NULL) { 8878 (void) fprintf(stderr, "out of memory\n"); 8879 zdb_exit(1); 8880 } 8881 err = decode_embedded_bp(&bp, buf, BPE_GET_LSIZE(&bp)); 8882 if (err != 0) { 8883 (void) fprintf(stderr, "decode failed: %u\n", err); 8884 zdb_exit(1); 8885 } 8886 zdb_dump_block_raw(buf, BPE_GET_LSIZE(&bp), 0); 8887 free(buf); 8888} 8889 8890/* check for valid hex or decimal numeric string */ 8891static boolean_t 8892zdb_numeric(char *str) 8893{ 8894 int i = 0; 8895 8896 if (strlen(str) == 0) 8897 return (B_FALSE); 8898 if (strncmp(str, "0x", 2) == 0 || strncmp(str, "0X", 2) == 0) 8899 i = 2; 8900 for (; i < strlen(str); i++) { 8901 if (!isxdigit(str[i])) 8902 return (B_FALSE); 8903 } 8904 return (B_TRUE); 8905} 8906 8907int 8908main(int argc, char **argv) 8909{ 8910 int c; 8911 int dump_all = 1; 8912 int verbose = 0; 8913 int error = 0; 8914 char **searchdirs = NULL; 8915 int nsearch = 0; 8916 char *target, *target_pool, dsname[ZFS_MAX_DATASET_NAME_LEN]; 8917 nvlist_t *policy = NULL; 8918 uint64_t max_txg = UINT64_MAX; 8919 int64_t objset_id = -1; 8920 uint64_t object; 8921 int flags = ZFS_IMPORT_MISSING_LOG; 8922 int rewind = ZPOOL_NEVER_REWIND; 8923 char *spa_config_path_env, *objset_str; 8924 boolean_t target_is_spa = B_TRUE, dataset_lookup = B_FALSE; 8925 nvlist_t *cfg = NULL; 8926 struct sigaction action; 8927 8928 dprintf_setup(&argc, argv); 8929 8930 /* 8931 * Set up signal handlers, so if we crash due to bad on-disk data we 8932 * can get more info. Unlike ztest, we don't bail out if we can't set 8933 * up signal handlers, because zdb is very useful without them. 8934 */ 8935 action.sa_handler = sig_handler; 8936 sigemptyset(&action.sa_mask); 8937 action.sa_flags = 0; 8938 if (sigaction(SIGSEGV, &action, NULL) < 0) { 8939 (void) fprintf(stderr, "zdb: cannot catch SIGSEGV: %s\n", 8940 strerror(errno)); 8941 } 8942 if (sigaction(SIGABRT, &action, NULL) < 0) { 8943 (void) fprintf(stderr, "zdb: cannot catch SIGABRT: %s\n", 8944 strerror(errno)); 8945 } 8946 8947 /* 8948 * If there is an environment variable SPA_CONFIG_PATH it overrides 8949 * default spa_config_path setting. If -U flag is specified it will 8950 * override this environment variable settings once again. 8951 */ 8952 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 8953 if (spa_config_path_env != NULL) 8954 spa_config_path = spa_config_path_env; 8955 8956 /* 8957 * For performance reasons, we set this tunable down. We do so before 8958 * the arg parsing section so that the user can override this value if 8959 * they choose. 8960 */ 8961 zfs_btree_verify_intensity = 3; 8962 8963 struct option long_options[] = { 8964 {"ignore-assertions", no_argument, NULL, 'A'}, 8965 {"block-stats", no_argument, NULL, 'b'}, 8966 {"backup", no_argument, NULL, 'B'}, 8967 {"checksum", no_argument, NULL, 'c'}, 8968 {"config", no_argument, NULL, 'C'}, 8969 {"datasets", no_argument, NULL, 'd'}, 8970 {"dedup-stats", no_argument, NULL, 'D'}, 8971 {"exported", no_argument, NULL, 'e'}, 8972 {"embedded-block-pointer", no_argument, NULL, 'E'}, 8973 {"automatic-rewind", no_argument, NULL, 'F'}, 8974 {"dump-debug-msg", no_argument, NULL, 'G'}, 8975 {"history", no_argument, NULL, 'h'}, 8976 {"intent-logs", no_argument, NULL, 'i'}, 8977 {"inflight", required_argument, NULL, 'I'}, 8978 {"checkpointed-state", no_argument, NULL, 'k'}, 8979 {"key", required_argument, NULL, 'K'}, 8980 {"label", no_argument, NULL, 'l'}, 8981 {"disable-leak-tracking", no_argument, NULL, 'L'}, 8982 {"metaslabs", no_argument, NULL, 'm'}, 8983 {"metaslab-groups", no_argument, NULL, 'M'}, 8984 {"numeric", no_argument, NULL, 'N'}, 8985 {"option", required_argument, NULL, 'o'}, 8986 {"object-lookups", no_argument, NULL, 'O'}, 8987 {"path", required_argument, NULL, 'p'}, 8988 {"parseable", no_argument, NULL, 'P'}, 8989 {"skip-label", no_argument, NULL, 'q'}, 8990 {"copy-object", no_argument, NULL, 'r'}, 8991 {"read-block", no_argument, NULL, 'R'}, 8992 {"io-stats", no_argument, NULL, 's'}, 8993 {"simulate-dedup", no_argument, NULL, 'S'}, 8994 {"txg", required_argument, NULL, 't'}, 8995 {"brt-stats", no_argument, NULL, 'T'}, 8996 {"uberblock", no_argument, NULL, 'u'}, 8997 {"cachefile", required_argument, NULL, 'U'}, 8998 {"verbose", no_argument, NULL, 'v'}, 8999 {"verbatim", no_argument, NULL, 'V'}, 9000 {"dump-blocks", required_argument, NULL, 'x'}, 9001 {"extreme-rewind", no_argument, NULL, 'X'}, 9002 {"all-reconstruction", no_argument, NULL, 'Y'}, 9003 {"livelist", no_argument, NULL, 'y'}, 9004 {"zstd-headers", no_argument, NULL, 'Z'}, 9005 {0, 0, 0, 0} 9006 }; 9007 9008 while ((c = getopt_long(argc, argv, 9009 "AbBcCdDeEFGhiI:kK:lLmMNo:Op:PqrRsSt:TuU:vVx:XYyZ", 9010 long_options, NULL)) != -1) { 9011 switch (c) { 9012 case 'b': 9013 case 'B': 9014 case 'c': 9015 case 'C': 9016 case 'd': 9017 case 'D': 9018 case 'E': 9019 case 'G': 9020 case 'h': 9021 case 'i': 9022 case 'l': 9023 case 'm': 9024 case 'M': 9025 case 'N': 9026 case 'O': 9027 case 'r': 9028 case 'R': 9029 case 's': 9030 case 'S': 9031 case 'T': 9032 case 'u': 9033 case 'y': 9034 case 'Z': 9035 dump_opt[c]++; 9036 dump_all = 0; 9037 break; 9038 case 'A': 9039 case 'e': 9040 case 'F': 9041 case 'k': 9042 case 'L': 9043 case 'P': 9044 case 'q': 9045 case 'X': 9046 dump_opt[c]++; 9047 break; 9048 case 'Y': 9049 zfs_reconstruct_indirect_combinations_max = INT_MAX; 9050 zfs_deadman_enabled = 0; 9051 break; 9052 /* NB: Sort single match options below. */ 9053 case 'I': 9054 max_inflight_bytes = strtoull(optarg, NULL, 0); 9055 if (max_inflight_bytes == 0) { 9056 (void) fprintf(stderr, "maximum number " 9057 "of inflight bytes must be greater " 9058 "than 0\n"); 9059 usage(); 9060 } 9061 break; 9062 case 'K': 9063 dump_opt[c]++; 9064 key_material = strdup(optarg); 9065 /* redact key material in process table */ 9066 while (*optarg != '\0') { *optarg++ = '*'; } 9067 break; 9068 case 'o': 9069 error = set_global_var(optarg); 9070 if (error != 0) 9071 usage(); 9072 break; 9073 case 'p': 9074 if (searchdirs == NULL) { 9075 searchdirs = umem_alloc(sizeof (char *), 9076 UMEM_NOFAIL); 9077 } else { 9078 char **tmp = umem_alloc((nsearch + 1) * 9079 sizeof (char *), UMEM_NOFAIL); 9080 memcpy(tmp, searchdirs, nsearch * 9081 sizeof (char *)); 9082 umem_free(searchdirs, 9083 nsearch * sizeof (char *)); 9084 searchdirs = tmp; 9085 } 9086 searchdirs[nsearch++] = optarg; 9087 break; 9088 case 't': 9089 max_txg = strtoull(optarg, NULL, 0); 9090 if (max_txg < TXG_INITIAL) { 9091 (void) fprintf(stderr, "incorrect txg " 9092 "specified: %s\n", optarg); 9093 usage(); 9094 } 9095 break; 9096 case 'U': 9097 spa_config_path = optarg; 9098 if (spa_config_path[0] != '/') { 9099 (void) fprintf(stderr, 9100 "cachefile must be an absolute path " 9101 "(i.e. start with a slash)\n"); 9102 usage(); 9103 } 9104 break; 9105 case 'v': 9106 verbose++; 9107 break; 9108 case 'V': 9109 flags = ZFS_IMPORT_VERBATIM; 9110 break; 9111 case 'x': 9112 vn_dumpdir = optarg; 9113 break; 9114 default: 9115 usage(); 9116 break; 9117 } 9118 } 9119 9120 if (!dump_opt['e'] && searchdirs != NULL) { 9121 (void) fprintf(stderr, "-p option requires use of -e\n"); 9122 usage(); 9123 } 9124#if defined(_LP64) 9125 /* 9126 * ZDB does not typically re-read blocks; therefore limit the ARC 9127 * to 256 MB, which can be used entirely for metadata. 9128 */ 9129 zfs_arc_min = 2ULL << SPA_MAXBLOCKSHIFT; 9130 zfs_arc_max = 256 * 1024 * 1024; 9131#endif 9132 9133 /* 9134 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 9135 * "zdb -b" uses traversal prefetch which uses async reads. 9136 * For good performance, let several of them be active at once. 9137 */ 9138 zfs_vdev_async_read_max_active = 10; 9139 9140 /* 9141 * Disable reference tracking for better performance. 9142 */ 9143 reference_tracking_enable = B_FALSE; 9144 9145 /* 9146 * Do not fail spa_load when spa_load_verify fails. This is needed 9147 * to load non-idle pools. 9148 */ 9149 spa_load_verify_dryrun = B_TRUE; 9150 9151 /* 9152 * ZDB should have ability to read spacemaps. 9153 */ 9154 spa_mode_readable_spacemaps = B_TRUE; 9155 9156 kernel_init(SPA_MODE_READ); 9157 kernel_init_done = B_TRUE; 9158 9159 if (dump_all) 9160 verbose = MAX(verbose, 1); 9161 9162 for (c = 0; c < 256; c++) { 9163 if (dump_all && strchr("ABeEFkKlLNOPrRSXy", c) == NULL) 9164 dump_opt[c] = 1; 9165 if (dump_opt[c]) 9166 dump_opt[c] += verbose; 9167 } 9168 9169 libspl_set_assert_ok((dump_opt['A'] == 1) || (dump_opt['A'] > 2)); 9170 zfs_recover = (dump_opt['A'] > 1); 9171 9172 argc -= optind; 9173 argv += optind; 9174 if (argc < 2 && dump_opt['R']) 9175 usage(); 9176 9177 if (dump_opt['E']) { 9178 if (argc != 1) 9179 usage(); 9180 zdb_embedded_block(argv[0]); 9181 error = 0; 9182 goto fini; 9183 } 9184 9185 if (argc < 1) { 9186 if (!dump_opt['e'] && dump_opt['C']) { 9187 dump_cachefile(spa_config_path); 9188 error = 0; 9189 goto fini; 9190 } 9191 usage(); 9192 } 9193 9194 if (dump_opt['l']) { 9195 error = dump_label(argv[0]); 9196 goto fini; 9197 } 9198 9199 if (dump_opt['X'] || dump_opt['F']) 9200 rewind = ZPOOL_DO_REWIND | 9201 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 9202 9203 /* -N implies -d */ 9204 if (dump_opt['N'] && dump_opt['d'] == 0) 9205 dump_opt['d'] = dump_opt['N']; 9206 9207 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 9208 nvlist_add_uint64(policy, ZPOOL_LOAD_REQUEST_TXG, max_txg) != 0 || 9209 nvlist_add_uint32(policy, ZPOOL_LOAD_REWIND_POLICY, rewind) != 0) 9210 fatal("internal error: %s", strerror(ENOMEM)); 9211 9212 error = 0; 9213 target = argv[0]; 9214 9215 if (strpbrk(target, "/@") != NULL) { 9216 size_t targetlen; 9217 9218 target_pool = strdup(target); 9219 *strpbrk(target_pool, "/@") = '\0'; 9220 9221 target_is_spa = B_FALSE; 9222 targetlen = strlen(target); 9223 if (targetlen && target[targetlen - 1] == '/') 9224 target[targetlen - 1] = '\0'; 9225 9226 /* 9227 * See if an objset ID was supplied (-d <pool>/<objset ID>). 9228 * To disambiguate tank/100, consider the 100 as objsetID 9229 * if -N was given, otherwise 100 is an objsetID iff 9230 * tank/100 as a named dataset fails on lookup. 9231 */ 9232 objset_str = strchr(target, '/'); 9233 if (objset_str && strlen(objset_str) > 1 && 9234 zdb_numeric(objset_str + 1)) { 9235 char *endptr; 9236 errno = 0; 9237 objset_str++; 9238 objset_id = strtoull(objset_str, &endptr, 0); 9239 /* dataset 0 is the same as opening the pool */ 9240 if (errno == 0 && endptr != objset_str && 9241 objset_id != 0) { 9242 if (dump_opt['N']) 9243 dataset_lookup = B_TRUE; 9244 } 9245 /* normal dataset name not an objset ID */ 9246 if (endptr == objset_str) { 9247 objset_id = -1; 9248 } 9249 } else if (objset_str && !zdb_numeric(objset_str + 1) && 9250 dump_opt['N']) { 9251 printf("Supply a numeric objset ID with -N\n"); 9252 error = 1; 9253 goto fini; 9254 } 9255 } else { 9256 target_pool = target; 9257 } 9258 9259 if (dump_opt['e']) { 9260 importargs_t args = { 0 }; 9261 9262 args.paths = nsearch; 9263 args.path = searchdirs; 9264 args.can_be_active = B_TRUE; 9265 9266 libpc_handle_t lpch = { 9267 .lpc_lib_handle = NULL, 9268 .lpc_ops = &libzpool_config_ops, 9269 .lpc_printerr = B_TRUE 9270 }; 9271 error = zpool_find_config(&lpch, target_pool, &cfg, &args); 9272 9273 if (error == 0) { 9274 9275 if (nvlist_add_nvlist(cfg, 9276 ZPOOL_LOAD_POLICY, policy) != 0) { 9277 fatal("can't open '%s': %s", 9278 target, strerror(ENOMEM)); 9279 } 9280 9281 if (dump_opt['C'] > 1) { 9282 (void) printf("\nConfiguration for import:\n"); 9283 dump_nvlist(cfg, 8); 9284 } 9285 9286 /* 9287 * Disable the activity check to allow examination of 9288 * active pools. 9289 */ 9290 error = spa_import(target_pool, cfg, NULL, 9291 flags | ZFS_IMPORT_SKIP_MMP); 9292 } 9293 } 9294 9295 if (searchdirs != NULL) { 9296 umem_free(searchdirs, nsearch * sizeof (char *)); 9297 searchdirs = NULL; 9298 } 9299 9300 /* 9301 * We need to make sure to process -O option or call 9302 * dump_path after the -e option has been processed, 9303 * which imports the pool to the namespace if it's 9304 * not in the cachefile. 9305 */ 9306 if (dump_opt['O']) { 9307 if (argc != 2) 9308 usage(); 9309 dump_opt['v'] = verbose + 3; 9310 error = dump_path(argv[0], argv[1], NULL); 9311 goto fini; 9312 } 9313 9314 if (dump_opt['r']) { 9315 target_is_spa = B_FALSE; 9316 if (argc != 3) 9317 usage(); 9318 dump_opt['v'] = verbose; 9319 error = dump_path(argv[0], argv[1], &object); 9320 if (error != 0) 9321 fatal("internal error: %s", strerror(error)); 9322 } 9323 9324 /* 9325 * import_checkpointed_state makes the assumption that the 9326 * target pool that we pass it is already part of the spa 9327 * namespace. Because of that we need to make sure to call 9328 * it always after the -e option has been processed, which 9329 * imports the pool to the namespace if it's not in the 9330 * cachefile. 9331 */ 9332 char *checkpoint_pool = NULL; 9333 char *checkpoint_target = NULL; 9334 if (dump_opt['k']) { 9335 checkpoint_pool = import_checkpointed_state(target, cfg, 9336 &checkpoint_target); 9337 9338 if (checkpoint_target != NULL) 9339 target = checkpoint_target; 9340 } 9341 9342 if (cfg != NULL) { 9343 nvlist_free(cfg); 9344 cfg = NULL; 9345 } 9346 9347 if (target_pool != target) 9348 free(target_pool); 9349 9350 if (error == 0) { 9351 if (dump_opt['k'] && (target_is_spa || dump_opt['R'])) { 9352 ASSERT(checkpoint_pool != NULL); 9353 ASSERT(checkpoint_target == NULL); 9354 9355 error = spa_open(checkpoint_pool, &spa, FTAG); 9356 if (error != 0) { 9357 fatal("Tried to open pool \"%s\" but " 9358 "spa_open() failed with error %d\n", 9359 checkpoint_pool, error); 9360 } 9361 9362 } else if (target_is_spa || dump_opt['R'] || dump_opt['B'] || 9363 objset_id == 0) { 9364 zdb_set_skip_mmp(target); 9365 error = spa_open_rewind(target, &spa, FTAG, policy, 9366 NULL); 9367 if (error) { 9368 /* 9369 * If we're missing the log device then 9370 * try opening the pool after clearing the 9371 * log state. 9372 */ 9373 mutex_enter(&spa_namespace_lock); 9374 if ((spa = spa_lookup(target)) != NULL && 9375 spa->spa_log_state == SPA_LOG_MISSING) { 9376 spa->spa_log_state = SPA_LOG_CLEAR; 9377 error = 0; 9378 } 9379 mutex_exit(&spa_namespace_lock); 9380 9381 if (!error) { 9382 error = spa_open_rewind(target, &spa, 9383 FTAG, policy, NULL); 9384 } 9385 } 9386 } else if (strpbrk(target, "#") != NULL) { 9387 dsl_pool_t *dp; 9388 error = dsl_pool_hold(target, FTAG, &dp); 9389 if (error != 0) { 9390 fatal("can't dump '%s': %s", target, 9391 strerror(error)); 9392 } 9393 error = dump_bookmark(dp, target, B_TRUE, verbose > 1); 9394 dsl_pool_rele(dp, FTAG); 9395 if (error != 0) { 9396 fatal("can't dump '%s': %s", target, 9397 strerror(error)); 9398 } 9399 goto fini; 9400 } else { 9401 target_pool = strdup(target); 9402 if (strpbrk(target, "/@") != NULL) 9403 *strpbrk(target_pool, "/@") = '\0'; 9404 9405 zdb_set_skip_mmp(target); 9406 /* 9407 * If -N was supplied, the user has indicated that 9408 * zdb -d <pool>/<objsetID> is in effect. Otherwise 9409 * we first assume that the dataset string is the 9410 * dataset name. If dmu_objset_hold fails with the 9411 * dataset string, and we have an objset_id, retry the 9412 * lookup with the objsetID. 9413 */ 9414 boolean_t retry = B_TRUE; 9415retry_lookup: 9416 if (dataset_lookup == B_TRUE) { 9417 /* 9418 * Use the supplied id to get the name 9419 * for open_objset. 9420 */ 9421 error = spa_open(target_pool, &spa, FTAG); 9422 if (error == 0) { 9423 error = name_from_objset_id(spa, 9424 objset_id, dsname); 9425 spa_close(spa, FTAG); 9426 if (error == 0) 9427 target = dsname; 9428 } 9429 } 9430 if (error == 0) { 9431 if (objset_id > 0 && retry) { 9432 int err = dmu_objset_hold(target, FTAG, 9433 &os); 9434 if (err) { 9435 dataset_lookup = B_TRUE; 9436 retry = B_FALSE; 9437 goto retry_lookup; 9438 } else { 9439 dmu_objset_rele(os, FTAG); 9440 } 9441 } 9442 error = open_objset(target, FTAG, &os); 9443 } 9444 if (error == 0) 9445 spa = dmu_objset_spa(os); 9446 free(target_pool); 9447 } 9448 } 9449 nvlist_free(policy); 9450 9451 if (error) 9452 fatal("can't open '%s': %s", target, strerror(error)); 9453 9454 /* 9455 * Set the pool failure mode to panic in order to prevent the pool 9456 * from suspending. A suspended I/O will have no way to resume and 9457 * can prevent the zdb(8) command from terminating as expected. 9458 */ 9459 if (spa != NULL) 9460 spa->spa_failmode = ZIO_FAILURE_MODE_PANIC; 9461 9462 argv++; 9463 argc--; 9464 if (dump_opt['r']) { 9465 error = zdb_copy_object(os, object, argv[1]); 9466 } else if (!dump_opt['R']) { 9467 flagbits['d'] = ZOR_FLAG_DIRECTORY; 9468 flagbits['f'] = ZOR_FLAG_PLAIN_FILE; 9469 flagbits['m'] = ZOR_FLAG_SPACE_MAP; 9470 flagbits['z'] = ZOR_FLAG_ZAP; 9471 flagbits['A'] = ZOR_FLAG_ALL_TYPES; 9472 9473 if (argc > 0 && dump_opt['d']) { 9474 zopt_object_args = argc; 9475 zopt_object_ranges = calloc(zopt_object_args, 9476 sizeof (zopt_object_range_t)); 9477 for (unsigned i = 0; i < zopt_object_args; i++) { 9478 int err; 9479 const char *msg = NULL; 9480 9481 err = parse_object_range(argv[i], 9482 &zopt_object_ranges[i], &msg); 9483 if (err != 0) 9484 fatal("Bad object or range: '%s': %s\n", 9485 argv[i], msg ?: ""); 9486 } 9487 } else if (argc > 0 && dump_opt['m']) { 9488 zopt_metaslab_args = argc; 9489 zopt_metaslab = calloc(zopt_metaslab_args, 9490 sizeof (uint64_t)); 9491 for (unsigned i = 0; i < zopt_metaslab_args; i++) { 9492 errno = 0; 9493 zopt_metaslab[i] = strtoull(argv[i], NULL, 0); 9494 if (zopt_metaslab[i] == 0 && errno != 0) 9495 fatal("bad number %s: %s", argv[i], 9496 strerror(errno)); 9497 } 9498 } 9499 if (dump_opt['B']) { 9500 dump_backup(target, objset_id, 9501 argc > 0 ? argv[0] : NULL); 9502 } else if (os != NULL) { 9503 dump_objset(os); 9504 } else if (zopt_object_args > 0 && !dump_opt['m']) { 9505 dump_objset(spa->spa_meta_objset); 9506 } else { 9507 dump_zpool(spa); 9508 } 9509 } else { 9510 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 9511 flagbits['c'] = ZDB_FLAG_CHECKSUM; 9512 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 9513 flagbits['e'] = ZDB_FLAG_BSWAP; 9514 flagbits['g'] = ZDB_FLAG_GBH; 9515 flagbits['i'] = ZDB_FLAG_INDIRECT; 9516 flagbits['r'] = ZDB_FLAG_RAW; 9517 flagbits['v'] = ZDB_FLAG_VERBOSE; 9518 9519 for (int i = 0; i < argc; i++) 9520 zdb_read_block(argv[i], spa); 9521 } 9522 9523 if (dump_opt['k']) { 9524 free(checkpoint_pool); 9525 if (!target_is_spa) 9526 free(checkpoint_target); 9527 } 9528 9529fini: 9530 if (os != NULL) { 9531 close_objset(os, FTAG); 9532 } else if (spa != NULL) { 9533 spa_close(spa, FTAG); 9534 } 9535 9536 fuid_table_destroy(); 9537 9538 dump_debug_buffer(); 9539 9540 if (kernel_init_done) 9541 kernel_fini(); 9542 9543 return (error); 9544} 9545