zdb.c revision 268650
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 http://www.opensolaris.org/os/licensing. 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) 2012, 2014 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern boolean_t zfs_recover; 79#else 80boolean_t zfs_recover; 81#endif 82 83const char cmdname[] = "zdb"; 84uint8_t dump_opt[256]; 85 86typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88extern void dump_intent_log(zilog_t *); 89uint64_t *zopt_object = NULL; 90int zopt_objects = 0; 91libzfs_handle_t *g_zfs; 92uint64_t max_inflight = 200; 93 94/* 95 * These libumem hooks provide a reasonable set of defaults for the allocator's 96 * debugging facilities. 97 */ 98const char * 99_umem_debug_init() 100{ 101 return ("default,verbose"); /* $UMEM_DEBUG setting */ 102} 103 104const char * 105_umem_logging_init(void) 106{ 107 return ("fail,contents"); /* $UMEM_LOGGING setting */ 108} 109 110static void 111usage(void) 112{ 113 (void) fprintf(stderr, 114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-M inflight I/Os] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 119 "poolname [vdev [metaslab...]]\n" 120 " %s -R [-A] [-e [-p path...]] poolname " 121 "vdev:offset:size[:flags]\n" 122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 123 " %s -l [-uA] device\n" 124 " %s -C [-A] [-U config]\n\n", 125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 126 127 (void) fprintf(stderr, " Dataset name must include at least one " 128 "separator character '/' or '@'\n"); 129 (void) fprintf(stderr, " If dataset name is specified, only that " 130 "dataset is dumped\n"); 131 (void) fprintf(stderr, " If object numbers are specified, only " 132 "those objects are dumped\n\n"); 133 (void) fprintf(stderr, " Options to control amount of output:\n"); 134 (void) fprintf(stderr, " -u uberblock\n"); 135 (void) fprintf(stderr, " -d dataset(s)\n"); 136 (void) fprintf(stderr, " -i intent logs\n"); 137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 138 (void) fprintf(stderr, " -h pool history\n"); 139 (void) fprintf(stderr, " -b block statistics\n"); 140 (void) fprintf(stderr, " -m metaslabs\n"); 141 (void) fprintf(stderr, " -c checksum all metadata (twice for " 142 "all data) blocks\n"); 143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 144 (void) fprintf(stderr, " -D dedup statistics\n"); 145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 146 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 147 (void) fprintf(stderr, " -l dump label contents\n"); 148 (void) fprintf(stderr, " -L disable leak tracking (do not " 149 "load spacemaps)\n"); 150 (void) fprintf(stderr, " -R read and display block from a " 151 "device\n\n"); 152 (void) fprintf(stderr, " Below options are intended for use " 153 "with other options (except -l):\n"); 154 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 155 "panic recovery (-AA) or both (-AAA)\n"); 156 (void) fprintf(stderr, " -F attempt automatic rewind within " 157 "safe range of transaction groups\n"); 158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 159 "cachefile\n"); 160 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 161 "work with dataset)\n"); 162 (void) fprintf(stderr, " -e pool is exported/destroyed/" 163 "has altroot/not in a cachefile\n"); 164 (void) fprintf(stderr, " -p <path> -- use one or more with " 165 "-e to specify path to vdev dir\n"); 166 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 168 "searching for uberblocks\n"); 169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 170 "specify the maximum number of checksumming I/Os [default is 200]"); 171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 172 "to make only that option verbose\n"); 173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 174 exit(1); 175} 176 177/* 178 * Called for usage errors that are discovered after a call to spa_open(), 179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 180 */ 181 182static void 183fatal(const char *fmt, ...) 184{ 185 va_list ap; 186 187 va_start(ap, fmt); 188 (void) fprintf(stderr, "%s: ", cmdname); 189 (void) vfprintf(stderr, fmt, ap); 190 va_end(ap); 191 (void) fprintf(stderr, "\n"); 192 193 exit(1); 194} 195 196/* ARGSUSED */ 197static void 198dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 199{ 200 nvlist_t *nv; 201 size_t nvsize = *(uint64_t *)data; 202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 203 204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 205 206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 207 208 umem_free(packed, nvsize); 209 210 dump_nvlist(nv, 8); 211 212 nvlist_free(nv); 213} 214 215/* ARGSUSED */ 216static void 217dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 218{ 219 spa_history_phys_t *shp = data; 220 221 if (shp == NULL) 222 return; 223 224 (void) printf("\t\tpool_create_len = %llu\n", 225 (u_longlong_t)shp->sh_pool_create_len); 226 (void) printf("\t\tphys_max_off = %llu\n", 227 (u_longlong_t)shp->sh_phys_max_off); 228 (void) printf("\t\tbof = %llu\n", 229 (u_longlong_t)shp->sh_bof); 230 (void) printf("\t\teof = %llu\n", 231 (u_longlong_t)shp->sh_eof); 232 (void) printf("\t\trecords_lost = %llu\n", 233 (u_longlong_t)shp->sh_records_lost); 234} 235 236static void 237zdb_nicenum(uint64_t num, char *buf) 238{ 239 if (dump_opt['P']) 240 (void) sprintf(buf, "%llu", (longlong_t)num); 241 else 242 nicenum(num, buf); 243} 244 245const char histo_stars[] = "****************************************"; 246const int histo_width = sizeof (histo_stars) - 1; 247 248static void 249dump_histogram(const uint64_t *histo, int size, int offset) 250{ 251 int i; 252 int minidx = size - 1; 253 int maxidx = 0; 254 uint64_t max = 0; 255 256 for (i = 0; i < size; i++) { 257 if (histo[i] > max) 258 max = histo[i]; 259 if (histo[i] > 0 && i > maxidx) 260 maxidx = i; 261 if (histo[i] > 0 && i < minidx) 262 minidx = i; 263 } 264 265 if (max < histo_width) 266 max = histo_width; 267 268 for (i = minidx; i <= maxidx; i++) { 269 (void) printf("\t\t\t%3u: %6llu %s\n", 270 i + offset, (u_longlong_t)histo[i], 271 &histo_stars[(max - histo[i]) * histo_width / max]); 272 } 273} 274 275static void 276dump_zap_stats(objset_t *os, uint64_t object) 277{ 278 int error; 279 zap_stats_t zs; 280 281 error = zap_get_stats(os, object, &zs); 282 if (error) 283 return; 284 285 if (zs.zs_ptrtbl_len == 0) { 286 ASSERT(zs.zs_num_blocks == 1); 287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 288 (u_longlong_t)zs.zs_blocksize, 289 (u_longlong_t)zs.zs_num_entries); 290 return; 291 } 292 293 (void) printf("\tFat ZAP stats:\n"); 294 295 (void) printf("\t\tPointer table:\n"); 296 (void) printf("\t\t\t%llu elements\n", 297 (u_longlong_t)zs.zs_ptrtbl_len); 298 (void) printf("\t\t\tzt_blk: %llu\n", 299 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 300 (void) printf("\t\t\tzt_numblks: %llu\n", 301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 302 (void) printf("\t\t\tzt_shift: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 304 (void) printf("\t\t\tzt_blks_copied: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 306 (void) printf("\t\t\tzt_nextblk: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_nextblk); 308 309 (void) printf("\t\tZAP entries: %llu\n", 310 (u_longlong_t)zs.zs_num_entries); 311 (void) printf("\t\tLeaf blocks: %llu\n", 312 (u_longlong_t)zs.zs_num_leafs); 313 (void) printf("\t\tTotal blocks: %llu\n", 314 (u_longlong_t)zs.zs_num_blocks); 315 (void) printf("\t\tzap_block_type: 0x%llx\n", 316 (u_longlong_t)zs.zs_block_type); 317 (void) printf("\t\tzap_magic: 0x%llx\n", 318 (u_longlong_t)zs.zs_magic); 319 (void) printf("\t\tzap_salt: 0x%llx\n", 320 (u_longlong_t)zs.zs_salt); 321 322 (void) printf("\t\tLeafs with 2^n pointers:\n"); 323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 324 325 (void) printf("\t\tBlocks with n*5 entries:\n"); 326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 327 328 (void) printf("\t\tBlocks n/10 full:\n"); 329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tEntries with n chunks:\n"); 332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBuckets with n entries:\n"); 335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 336} 337 338/*ARGSUSED*/ 339static void 340dump_none(objset_t *os, uint64_t object, void *data, size_t size) 341{ 342} 343 344/*ARGSUSED*/ 345static void 346dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 347{ 348 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 349} 350 351/*ARGSUSED*/ 352void 353dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 354{ 355} 356 357/*ARGSUSED*/ 358static void 359dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 360{ 361} 362 363/*ARGSUSED*/ 364static void 365dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 366{ 367 zap_cursor_t zc; 368 zap_attribute_t attr; 369 void *prop; 370 int i; 371 372 dump_zap_stats(os, object); 373 (void) printf("\n"); 374 375 for (zap_cursor_init(&zc, os, object); 376 zap_cursor_retrieve(&zc, &attr) == 0; 377 zap_cursor_advance(&zc)) { 378 (void) printf("\t\t%s = ", attr.za_name); 379 if (attr.za_num_integers == 0) { 380 (void) printf("\n"); 381 continue; 382 } 383 prop = umem_zalloc(attr.za_num_integers * 384 attr.za_integer_length, UMEM_NOFAIL); 385 (void) zap_lookup(os, object, attr.za_name, 386 attr.za_integer_length, attr.za_num_integers, prop); 387 if (attr.za_integer_length == 1) { 388 (void) printf("%s", (char *)prop); 389 } else { 390 for (i = 0; i < attr.za_num_integers; i++) { 391 switch (attr.za_integer_length) { 392 case 2: 393 (void) printf("%u ", 394 ((uint16_t *)prop)[i]); 395 break; 396 case 4: 397 (void) printf("%u ", 398 ((uint32_t *)prop)[i]); 399 break; 400 case 8: 401 (void) printf("%lld ", 402 (u_longlong_t)((int64_t *)prop)[i]); 403 break; 404 } 405 } 406 } 407 (void) printf("\n"); 408 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 409 } 410 zap_cursor_fini(&zc); 411} 412 413/*ARGSUSED*/ 414static void 415dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 416{ 417 dump_zap_stats(os, object); 418 /* contents are printed elsewhere, properly decoded */ 419} 420 421/*ARGSUSED*/ 422static void 423dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 424{ 425 zap_cursor_t zc; 426 zap_attribute_t attr; 427 428 dump_zap_stats(os, object); 429 (void) printf("\n"); 430 431 for (zap_cursor_init(&zc, os, object); 432 zap_cursor_retrieve(&zc, &attr) == 0; 433 zap_cursor_advance(&zc)) { 434 (void) printf("\t\t%s = ", attr.za_name); 435 if (attr.za_num_integers == 0) { 436 (void) printf("\n"); 437 continue; 438 } 439 (void) printf(" %llx : [%d:%d:%d]\n", 440 (u_longlong_t)attr.za_first_integer, 441 (int)ATTR_LENGTH(attr.za_first_integer), 442 (int)ATTR_BSWAP(attr.za_first_integer), 443 (int)ATTR_NUM(attr.za_first_integer)); 444 } 445 zap_cursor_fini(&zc); 446} 447 448/*ARGSUSED*/ 449static void 450dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 451{ 452 zap_cursor_t zc; 453 zap_attribute_t attr; 454 uint16_t *layout_attrs; 455 int i; 456 457 dump_zap_stats(os, object); 458 (void) printf("\n"); 459 460 for (zap_cursor_init(&zc, os, object); 461 zap_cursor_retrieve(&zc, &attr) == 0; 462 zap_cursor_advance(&zc)) { 463 (void) printf("\t\t%s = [", attr.za_name); 464 if (attr.za_num_integers == 0) { 465 (void) printf("\n"); 466 continue; 467 } 468 469 VERIFY(attr.za_integer_length == 2); 470 layout_attrs = umem_zalloc(attr.za_num_integers * 471 attr.za_integer_length, UMEM_NOFAIL); 472 473 VERIFY(zap_lookup(os, object, attr.za_name, 474 attr.za_integer_length, 475 attr.za_num_integers, layout_attrs) == 0); 476 477 for (i = 0; i != attr.za_num_integers; i++) 478 (void) printf(" %d ", (int)layout_attrs[i]); 479 (void) printf("]\n"); 480 umem_free(layout_attrs, 481 attr.za_num_integers * attr.za_integer_length); 482 } 483 zap_cursor_fini(&zc); 484} 485 486/*ARGSUSED*/ 487static void 488dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 489{ 490 zap_cursor_t zc; 491 zap_attribute_t attr; 492 const char *typenames[] = { 493 /* 0 */ "not specified", 494 /* 1 */ "FIFO", 495 /* 2 */ "Character Device", 496 /* 3 */ "3 (invalid)", 497 /* 4 */ "Directory", 498 /* 5 */ "5 (invalid)", 499 /* 6 */ "Block Device", 500 /* 7 */ "7 (invalid)", 501 /* 8 */ "Regular File", 502 /* 9 */ "9 (invalid)", 503 /* 10 */ "Symbolic Link", 504 /* 11 */ "11 (invalid)", 505 /* 12 */ "Socket", 506 /* 13 */ "Door", 507 /* 14 */ "Event Port", 508 /* 15 */ "15 (invalid)", 509 }; 510 511 dump_zap_stats(os, object); 512 (void) printf("\n"); 513 514 for (zap_cursor_init(&zc, os, object); 515 zap_cursor_retrieve(&zc, &attr) == 0; 516 zap_cursor_advance(&zc)) { 517 (void) printf("\t\t%s = %lld (type: %s)\n", 518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 520 } 521 zap_cursor_fini(&zc); 522} 523 524int 525get_dtl_refcount(vdev_t *vd) 526{ 527 int refcount = 0; 528 529 if (vd->vdev_ops->vdev_op_leaf) { 530 space_map_t *sm = vd->vdev_dtl_sm; 531 532 if (sm != NULL && 533 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 534 return (1); 535 return (0); 536 } 537 538 for (int c = 0; c < vd->vdev_children; c++) 539 refcount += get_dtl_refcount(vd->vdev_child[c]); 540 return (refcount); 541} 542 543int 544get_metaslab_refcount(vdev_t *vd) 545{ 546 int refcount = 0; 547 548 if (vd->vdev_top == vd) { 549 for (int m = 0; m < vd->vdev_ms_count; m++) { 550 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 551 552 if (sm != NULL && 553 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 554 refcount++; 555 } 556 } 557 for (int c = 0; c < vd->vdev_children; c++) 558 refcount += get_metaslab_refcount(vd->vdev_child[c]); 559 560 return (refcount); 561} 562 563static int 564verify_spacemap_refcounts(spa_t *spa) 565{ 566 uint64_t expected_refcount = 0; 567 uint64_t actual_refcount; 568 569 (void) feature_get_refcount(spa, 570 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 571 &expected_refcount); 572 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 573 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 574 575 if (expected_refcount != actual_refcount) { 576 (void) printf("space map refcount mismatch: expected %lld != " 577 "actual %lld\n", 578 (longlong_t)expected_refcount, 579 (longlong_t)actual_refcount); 580 return (2); 581 } 582 return (0); 583} 584 585static void 586dump_spacemap(objset_t *os, space_map_t *sm) 587{ 588 uint64_t alloc, offset, entry; 589 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 590 "INVALID", "INVALID", "INVALID", "INVALID" }; 591 592 if (sm == NULL) 593 return; 594 595 /* 596 * Print out the freelist entries in both encoded and decoded form. 597 */ 598 alloc = 0; 599 for (offset = 0; offset < space_map_length(sm); 600 offset += sizeof (entry)) { 601 uint8_t mapshift = sm->sm_shift; 602 603 VERIFY0(dmu_read(os, space_map_object(sm), offset, 604 sizeof (entry), &entry, DMU_READ_PREFETCH)); 605 if (SM_DEBUG_DECODE(entry)) { 606 607 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 608 (u_longlong_t)(offset / sizeof (entry)), 609 ddata[SM_DEBUG_ACTION_DECODE(entry)], 610 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 611 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 612 } else { 613 (void) printf("\t [%6llu] %c range:" 614 " %010llx-%010llx size: %06llx\n", 615 (u_longlong_t)(offset / sizeof (entry)), 616 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 617 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 618 mapshift) + sm->sm_start), 619 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 620 mapshift) + sm->sm_start + 621 (SM_RUN_DECODE(entry) << mapshift)), 622 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 623 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 624 alloc += SM_RUN_DECODE(entry) << mapshift; 625 else 626 alloc -= SM_RUN_DECODE(entry) << mapshift; 627 } 628 } 629 if (alloc != space_map_allocated(sm)) { 630 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 631 "with space map summary (%llu)\n", 632 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 633 } 634} 635 636static void 637dump_metaslab_stats(metaslab_t *msp) 638{ 639 char maxbuf[32]; 640 range_tree_t *rt = msp->ms_tree; 641 avl_tree_t *t = &msp->ms_size_tree; 642 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 643 644 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 645 646 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 647 "segments", avl_numnodes(t), "maxsize", maxbuf, 648 "freepct", free_pct); 649 (void) printf("\tIn-memory histogram:\n"); 650 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 651} 652 653static void 654dump_metaslab(metaslab_t *msp) 655{ 656 vdev_t *vd = msp->ms_group->mg_vd; 657 spa_t *spa = vd->vdev_spa; 658 space_map_t *sm = msp->ms_sm; 659 char freebuf[32]; 660 661 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 662 663 (void) printf( 664 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 665 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 666 (u_longlong_t)space_map_object(sm), freebuf); 667 668 if (dump_opt['m'] > 2 && !dump_opt['L']) { 669 mutex_enter(&msp->ms_lock); 670 metaslab_load_wait(msp); 671 if (!msp->ms_loaded) { 672 VERIFY0(metaslab_load(msp)); 673 range_tree_stat_verify(msp->ms_tree); 674 } 675 dump_metaslab_stats(msp); 676 metaslab_unload(msp); 677 mutex_exit(&msp->ms_lock); 678 } 679 680 if (dump_opt['m'] > 1 && sm != NULL && 681 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 682 /* 683 * The space map histogram represents free space in chunks 684 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 685 */ 686 (void) printf("\tOn-disk histogram:\n"); 687 dump_histogram(sm->sm_phys->smp_histogram, 688 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 689 } 690 691 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 692 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 693 694 mutex_enter(&msp->ms_lock); 695 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 696 mutex_exit(&msp->ms_lock); 697 } 698} 699 700static void 701print_vdev_metaslab_header(vdev_t *vd) 702{ 703 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 704 (u_longlong_t)vd->vdev_id, 705 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 706 "offset", "spacemap", "free"); 707 (void) printf("\t%15s %19s %15s %10s\n", 708 "---------------", "-------------------", 709 "---------------", "-------------"); 710} 711 712static void 713dump_metaslabs(spa_t *spa) 714{ 715 vdev_t *vd, *rvd = spa->spa_root_vdev; 716 uint64_t m, c = 0, children = rvd->vdev_children; 717 718 (void) printf("\nMetaslabs:\n"); 719 720 if (!dump_opt['d'] && zopt_objects > 0) { 721 c = zopt_object[0]; 722 723 if (c >= children) 724 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 725 726 if (zopt_objects > 1) { 727 vd = rvd->vdev_child[c]; 728 print_vdev_metaslab_header(vd); 729 730 for (m = 1; m < zopt_objects; m++) { 731 if (zopt_object[m] < vd->vdev_ms_count) 732 dump_metaslab( 733 vd->vdev_ms[zopt_object[m]]); 734 else 735 (void) fprintf(stderr, "bad metaslab " 736 "number %llu\n", 737 (u_longlong_t)zopt_object[m]); 738 } 739 (void) printf("\n"); 740 return; 741 } 742 children = c + 1; 743 } 744 for (; c < children; c++) { 745 vd = rvd->vdev_child[c]; 746 print_vdev_metaslab_header(vd); 747 748 for (m = 0; m < vd->vdev_ms_count; m++) 749 dump_metaslab(vd->vdev_ms[m]); 750 (void) printf("\n"); 751 } 752} 753 754static void 755dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 756{ 757 const ddt_phys_t *ddp = dde->dde_phys; 758 const ddt_key_t *ddk = &dde->dde_key; 759 char *types[4] = { "ditto", "single", "double", "triple" }; 760 char blkbuf[BP_SPRINTF_LEN]; 761 blkptr_t blk; 762 763 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 764 if (ddp->ddp_phys_birth == 0) 765 continue; 766 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 767 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 768 (void) printf("index %llx refcnt %llu %s %s\n", 769 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 770 types[p], blkbuf); 771 } 772} 773 774static void 775dump_dedup_ratio(const ddt_stat_t *dds) 776{ 777 double rL, rP, rD, D, dedup, compress, copies; 778 779 if (dds->dds_blocks == 0) 780 return; 781 782 rL = (double)dds->dds_ref_lsize; 783 rP = (double)dds->dds_ref_psize; 784 rD = (double)dds->dds_ref_dsize; 785 D = (double)dds->dds_dsize; 786 787 dedup = rD / D; 788 compress = rL / rP; 789 copies = rD / rP; 790 791 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 792 "dedup * compress / copies = %.2f\n\n", 793 dedup, compress, copies, dedup * compress / copies); 794} 795 796static void 797dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 798{ 799 char name[DDT_NAMELEN]; 800 ddt_entry_t dde; 801 uint64_t walk = 0; 802 dmu_object_info_t doi; 803 uint64_t count, dspace, mspace; 804 int error; 805 806 error = ddt_object_info(ddt, type, class, &doi); 807 808 if (error == ENOENT) 809 return; 810 ASSERT(error == 0); 811 812 error = ddt_object_count(ddt, type, class, &count); 813 ASSERT(error == 0); 814 if (count == 0) 815 return; 816 817 dspace = doi.doi_physical_blocks_512 << 9; 818 mspace = doi.doi_fill_count * doi.doi_data_block_size; 819 820 ddt_object_name(ddt, type, class, name); 821 822 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 823 name, 824 (u_longlong_t)count, 825 (u_longlong_t)(dspace / count), 826 (u_longlong_t)(mspace / count)); 827 828 if (dump_opt['D'] < 3) 829 return; 830 831 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 832 833 if (dump_opt['D'] < 4) 834 return; 835 836 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 837 return; 838 839 (void) printf("%s contents:\n\n", name); 840 841 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 842 dump_dde(ddt, &dde, walk); 843 844 ASSERT(error == ENOENT); 845 846 (void) printf("\n"); 847} 848 849static void 850dump_all_ddts(spa_t *spa) 851{ 852 ddt_histogram_t ddh_total = { 0 }; 853 ddt_stat_t dds_total = { 0 }; 854 855 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 856 ddt_t *ddt = spa->spa_ddt[c]; 857 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 858 for (enum ddt_class class = 0; class < DDT_CLASSES; 859 class++) { 860 dump_ddt(ddt, type, class); 861 } 862 } 863 } 864 865 ddt_get_dedup_stats(spa, &dds_total); 866 867 if (dds_total.dds_blocks == 0) { 868 (void) printf("All DDTs are empty\n"); 869 return; 870 } 871 872 (void) printf("\n"); 873 874 if (dump_opt['D'] > 1) { 875 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 876 ddt_get_dedup_histogram(spa, &ddh_total); 877 zpool_dump_ddt(&dds_total, &ddh_total); 878 } 879 880 dump_dedup_ratio(&dds_total); 881} 882 883static void 884dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 885{ 886 char *prefix = arg; 887 888 (void) printf("%s [%llu,%llu) length %llu\n", 889 prefix, 890 (u_longlong_t)start, 891 (u_longlong_t)(start + size), 892 (u_longlong_t)(size)); 893} 894 895static void 896dump_dtl(vdev_t *vd, int indent) 897{ 898 spa_t *spa = vd->vdev_spa; 899 boolean_t required; 900 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 901 char prefix[256]; 902 903 spa_vdev_state_enter(spa, SCL_NONE); 904 required = vdev_dtl_required(vd); 905 (void) spa_vdev_state_exit(spa, NULL, 0); 906 907 if (indent == 0) 908 (void) printf("\nDirty time logs:\n\n"); 909 910 (void) printf("\t%*s%s [%s]\n", indent, "", 911 vd->vdev_path ? vd->vdev_path : 912 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 913 required ? "DTL-required" : "DTL-expendable"); 914 915 for (int t = 0; t < DTL_TYPES; t++) { 916 range_tree_t *rt = vd->vdev_dtl[t]; 917 if (range_tree_space(rt) == 0) 918 continue; 919 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 920 indent + 2, "", name[t]); 921 mutex_enter(rt->rt_lock); 922 range_tree_walk(rt, dump_dtl_seg, prefix); 923 mutex_exit(rt->rt_lock); 924 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 925 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 926 } 927 928 for (int c = 0; c < vd->vdev_children; c++) 929 dump_dtl(vd->vdev_child[c], indent + 4); 930} 931 932/* from spa_history.c: spa_history_create_obj() */ 933#define HIS_BUF_LEN_DEF (128 << 10) 934#define HIS_BUF_LEN_MAX (1 << 30) 935 936static void 937dump_history(spa_t *spa) 938{ 939 nvlist_t **events = NULL; 940 char *buf = NULL; 941 uint64_t bufsize = HIS_BUF_LEN_DEF; 942 uint64_t resid, len, off = 0; 943 uint_t num = 0; 944 int error; 945 time_t tsec; 946 struct tm t; 947 char tbuf[30]; 948 char internalstr[MAXPATHLEN]; 949 950 if ((buf = malloc(bufsize)) == NULL) 951 (void) fprintf(stderr, "Unable to read history: " 952 "out of memory\n"); 953 do { 954 len = bufsize; 955 956 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 957 (void) fprintf(stderr, "Unable to read history: " 958 "error %d\n", error); 959 return; 960 } 961 962 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 963 break; 964 off -= resid; 965 966 /* 967 * If the history block is too big, double the buffer 968 * size and try again. 969 */ 970 if (resid == len) { 971 free(buf); 972 buf = NULL; 973 974 bufsize <<= 1; 975 if ((bufsize >= HIS_BUF_LEN_MAX) || 976 ((buf = malloc(bufsize)) == NULL)) { 977 (void) fprintf(stderr, "Unable to read history: " 978 "out of memory\n"); 979 return; 980 } 981 } 982 } while (len != 0); 983 free(buf); 984 985 (void) printf("\nHistory:\n"); 986 for (int i = 0; i < num; i++) { 987 uint64_t time, txg, ievent; 988 char *cmd, *intstr; 989 boolean_t printed = B_FALSE; 990 991 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 992 &time) != 0) 993 goto next; 994 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 995 &cmd) != 0) { 996 if (nvlist_lookup_uint64(events[i], 997 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 998 goto next; 999 verify(nvlist_lookup_uint64(events[i], 1000 ZPOOL_HIST_TXG, &txg) == 0); 1001 verify(nvlist_lookup_string(events[i], 1002 ZPOOL_HIST_INT_STR, &intstr) == 0); 1003 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1004 goto next; 1005 1006 (void) snprintf(internalstr, 1007 sizeof (internalstr), 1008 "[internal %s txg:%lld] %s", 1009 zfs_history_event_names[ievent], txg, 1010 intstr); 1011 cmd = internalstr; 1012 } 1013 tsec = time; 1014 (void) localtime_r(&tsec, &t); 1015 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1016 (void) printf("%s %s\n", tbuf, cmd); 1017 printed = B_TRUE; 1018 1019next: 1020 if (dump_opt['h'] > 1) { 1021 if (!printed) 1022 (void) printf("unrecognized record:\n"); 1023 dump_nvlist(events[i], 2); 1024 } 1025 } 1026} 1027 1028/*ARGSUSED*/ 1029static void 1030dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1031{ 1032} 1033 1034static uint64_t 1035blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1036{ 1037 if (dnp == NULL) { 1038 ASSERT(zb->zb_level < 0); 1039 if (zb->zb_object == 0) 1040 return (zb->zb_blkid); 1041 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1042 } 1043 1044 ASSERT(zb->zb_level >= 0); 1045 1046 return ((zb->zb_blkid << 1047 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1048 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1049} 1050 1051static void 1052snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1053{ 1054 const dva_t *dva = bp->blk_dva; 1055 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1056 1057 if (dump_opt['b'] >= 6) { 1058 snprintf_blkptr(blkbuf, buflen, bp); 1059 return; 1060 } 1061 1062 if (BP_IS_EMBEDDED(bp)) { 1063 (void) sprintf(blkbuf, 1064 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1065 (int)BPE_GET_ETYPE(bp), 1066 (u_longlong_t)BPE_GET_LSIZE(bp), 1067 (u_longlong_t)BPE_GET_PSIZE(bp), 1068 (u_longlong_t)bp->blk_birth); 1069 return; 1070 } 1071 1072 blkbuf[0] = '\0'; 1073 for (int i = 0; i < ndvas; i++) 1074 (void) snprintf(blkbuf + strlen(blkbuf), 1075 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1076 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1077 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1078 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1079 1080 if (BP_IS_HOLE(bp)) { 1081 (void) snprintf(blkbuf + strlen(blkbuf), 1082 buflen - strlen(blkbuf), "B=%llu", 1083 (u_longlong_t)bp->blk_birth); 1084 } else { 1085 (void) snprintf(blkbuf + strlen(blkbuf), 1086 buflen - strlen(blkbuf), 1087 "%llxL/%llxP F=%llu B=%llu/%llu", 1088 (u_longlong_t)BP_GET_LSIZE(bp), 1089 (u_longlong_t)BP_GET_PSIZE(bp), 1090 (u_longlong_t)BP_GET_FILL(bp), 1091 (u_longlong_t)bp->blk_birth, 1092 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1093 } 1094} 1095 1096static void 1097print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1098 const dnode_phys_t *dnp) 1099{ 1100 char blkbuf[BP_SPRINTF_LEN]; 1101 int l; 1102 1103 if (!BP_IS_EMBEDDED(bp)) { 1104 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1105 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1106 } 1107 1108 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1109 1110 ASSERT(zb->zb_level >= 0); 1111 1112 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1113 if (l == zb->zb_level) { 1114 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1115 } else { 1116 (void) printf(" "); 1117 } 1118 } 1119 1120 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1121 (void) printf("%s\n", blkbuf); 1122} 1123 1124static int 1125visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1126 blkptr_t *bp, const zbookmark_t *zb) 1127{ 1128 int err = 0; 1129 1130 if (bp->blk_birth == 0) 1131 return (0); 1132 1133 print_indirect(bp, zb, dnp); 1134 1135 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1136 uint32_t flags = ARC_WAIT; 1137 int i; 1138 blkptr_t *cbp; 1139 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1140 arc_buf_t *buf; 1141 uint64_t fill = 0; 1142 1143 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1144 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1145 if (err) 1146 return (err); 1147 ASSERT(buf->b_data); 1148 1149 /* recursively visit blocks below this */ 1150 cbp = buf->b_data; 1151 for (i = 0; i < epb; i++, cbp++) { 1152 zbookmark_t czb; 1153 1154 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1155 zb->zb_level - 1, 1156 zb->zb_blkid * epb + i); 1157 err = visit_indirect(spa, dnp, cbp, &czb); 1158 if (err) 1159 break; 1160 fill += BP_GET_FILL(cbp); 1161 } 1162 if (!err) 1163 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1164 (void) arc_buf_remove_ref(buf, &buf); 1165 } 1166 1167 return (err); 1168} 1169 1170/*ARGSUSED*/ 1171static void 1172dump_indirect(dnode_t *dn) 1173{ 1174 dnode_phys_t *dnp = dn->dn_phys; 1175 int j; 1176 zbookmark_t czb; 1177 1178 (void) printf("Indirect blocks:\n"); 1179 1180 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1181 dn->dn_object, dnp->dn_nlevels - 1, 0); 1182 for (j = 0; j < dnp->dn_nblkptr; j++) { 1183 czb.zb_blkid = j; 1184 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1185 &dnp->dn_blkptr[j], &czb); 1186 } 1187 1188 (void) printf("\n"); 1189} 1190 1191/*ARGSUSED*/ 1192static void 1193dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1194{ 1195 dsl_dir_phys_t *dd = data; 1196 time_t crtime; 1197 char nice[32]; 1198 1199 if (dd == NULL) 1200 return; 1201 1202 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1203 1204 crtime = dd->dd_creation_time; 1205 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1206 (void) printf("\t\thead_dataset_obj = %llu\n", 1207 (u_longlong_t)dd->dd_head_dataset_obj); 1208 (void) printf("\t\tparent_dir_obj = %llu\n", 1209 (u_longlong_t)dd->dd_parent_obj); 1210 (void) printf("\t\torigin_obj = %llu\n", 1211 (u_longlong_t)dd->dd_origin_obj); 1212 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1213 (u_longlong_t)dd->dd_child_dir_zapobj); 1214 zdb_nicenum(dd->dd_used_bytes, nice); 1215 (void) printf("\t\tused_bytes = %s\n", nice); 1216 zdb_nicenum(dd->dd_compressed_bytes, nice); 1217 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1218 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1219 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1220 zdb_nicenum(dd->dd_quota, nice); 1221 (void) printf("\t\tquota = %s\n", nice); 1222 zdb_nicenum(dd->dd_reserved, nice); 1223 (void) printf("\t\treserved = %s\n", nice); 1224 (void) printf("\t\tprops_zapobj = %llu\n", 1225 (u_longlong_t)dd->dd_props_zapobj); 1226 (void) printf("\t\tdeleg_zapobj = %llu\n", 1227 (u_longlong_t)dd->dd_deleg_zapobj); 1228 (void) printf("\t\tflags = %llx\n", 1229 (u_longlong_t)dd->dd_flags); 1230 1231#define DO(which) \ 1232 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1233 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1234 DO(HEAD); 1235 DO(SNAP); 1236 DO(CHILD); 1237 DO(CHILD_RSRV); 1238 DO(REFRSRV); 1239#undef DO 1240} 1241 1242/*ARGSUSED*/ 1243static void 1244dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1245{ 1246 dsl_dataset_phys_t *ds = data; 1247 time_t crtime; 1248 char used[32], compressed[32], uncompressed[32], unique[32]; 1249 char blkbuf[BP_SPRINTF_LEN]; 1250 1251 if (ds == NULL) 1252 return; 1253 1254 ASSERT(size == sizeof (*ds)); 1255 crtime = ds->ds_creation_time; 1256 zdb_nicenum(ds->ds_referenced_bytes, used); 1257 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1258 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1259 zdb_nicenum(ds->ds_unique_bytes, unique); 1260 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1261 1262 (void) printf("\t\tdir_obj = %llu\n", 1263 (u_longlong_t)ds->ds_dir_obj); 1264 (void) printf("\t\tprev_snap_obj = %llu\n", 1265 (u_longlong_t)ds->ds_prev_snap_obj); 1266 (void) printf("\t\tprev_snap_txg = %llu\n", 1267 (u_longlong_t)ds->ds_prev_snap_txg); 1268 (void) printf("\t\tnext_snap_obj = %llu\n", 1269 (u_longlong_t)ds->ds_next_snap_obj); 1270 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1271 (u_longlong_t)ds->ds_snapnames_zapobj); 1272 (void) printf("\t\tnum_children = %llu\n", 1273 (u_longlong_t)ds->ds_num_children); 1274 (void) printf("\t\tuserrefs_obj = %llu\n", 1275 (u_longlong_t)ds->ds_userrefs_obj); 1276 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1277 (void) printf("\t\tcreation_txg = %llu\n", 1278 (u_longlong_t)ds->ds_creation_txg); 1279 (void) printf("\t\tdeadlist_obj = %llu\n", 1280 (u_longlong_t)ds->ds_deadlist_obj); 1281 (void) printf("\t\tused_bytes = %s\n", used); 1282 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1283 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1284 (void) printf("\t\tunique = %s\n", unique); 1285 (void) printf("\t\tfsid_guid = %llu\n", 1286 (u_longlong_t)ds->ds_fsid_guid); 1287 (void) printf("\t\tguid = %llu\n", 1288 (u_longlong_t)ds->ds_guid); 1289 (void) printf("\t\tflags = %llx\n", 1290 (u_longlong_t)ds->ds_flags); 1291 (void) printf("\t\tnext_clones_obj = %llu\n", 1292 (u_longlong_t)ds->ds_next_clones_obj); 1293 (void) printf("\t\tprops_obj = %llu\n", 1294 (u_longlong_t)ds->ds_props_obj); 1295 (void) printf("\t\tbp = %s\n", blkbuf); 1296} 1297 1298/* ARGSUSED */ 1299static int 1300dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1301{ 1302 char blkbuf[BP_SPRINTF_LEN]; 1303 1304 if (bp->blk_birth != 0) { 1305 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1306 (void) printf("\t%s\n", blkbuf); 1307 } 1308 return (0); 1309} 1310 1311static void 1312dump_bptree(objset_t *os, uint64_t obj, char *name) 1313{ 1314 char bytes[32]; 1315 bptree_phys_t *bt; 1316 dmu_buf_t *db; 1317 1318 if (dump_opt['d'] < 3) 1319 return; 1320 1321 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1322 bt = db->db_data; 1323 zdb_nicenum(bt->bt_bytes, bytes); 1324 (void) printf("\n %s: %llu datasets, %s\n", 1325 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1326 dmu_buf_rele(db, FTAG); 1327 1328 if (dump_opt['d'] < 5) 1329 return; 1330 1331 (void) printf("\n"); 1332 1333 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1334} 1335 1336/* ARGSUSED */ 1337static int 1338dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1339{ 1340 char blkbuf[BP_SPRINTF_LEN]; 1341 1342 ASSERT(bp->blk_birth != 0); 1343 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1344 (void) printf("\t%s\n", blkbuf); 1345 return (0); 1346} 1347 1348static void 1349dump_bpobj(bpobj_t *bpo, char *name, int indent) 1350{ 1351 char bytes[32]; 1352 char comp[32]; 1353 char uncomp[32]; 1354 1355 if (dump_opt['d'] < 3) 1356 return; 1357 1358 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1359 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1360 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1361 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1362 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1363 "%llu subobjs, %s (%s/%s comp)\n", 1364 indent * 8, name, 1365 (u_longlong_t)bpo->bpo_object, 1366 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1367 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1368 bytes, comp, uncomp); 1369 1370 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1371 uint64_t subobj; 1372 bpobj_t subbpo; 1373 int error; 1374 VERIFY0(dmu_read(bpo->bpo_os, 1375 bpo->bpo_phys->bpo_subobjs, 1376 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1377 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1378 if (error != 0) { 1379 (void) printf("ERROR %u while trying to open " 1380 "subobj id %llu\n", 1381 error, (u_longlong_t)subobj); 1382 continue; 1383 } 1384 dump_bpobj(&subbpo, "subobj", indent + 1); 1385 bpobj_close(&subbpo); 1386 } 1387 } else { 1388 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1389 indent * 8, name, 1390 (u_longlong_t)bpo->bpo_object, 1391 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1392 bytes); 1393 } 1394 1395 if (dump_opt['d'] < 5) 1396 return; 1397 1398 1399 if (indent == 0) { 1400 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1401 (void) printf("\n"); 1402 } 1403} 1404 1405static void 1406dump_deadlist(dsl_deadlist_t *dl) 1407{ 1408 dsl_deadlist_entry_t *dle; 1409 uint64_t unused; 1410 char bytes[32]; 1411 char comp[32]; 1412 char uncomp[32]; 1413 1414 if (dump_opt['d'] < 3) 1415 return; 1416 1417 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1418 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1419 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1420 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1421 bytes, comp, uncomp); 1422 1423 if (dump_opt['d'] < 4) 1424 return; 1425 1426 (void) printf("\n"); 1427 1428 /* force the tree to be loaded */ 1429 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1430 1431 for (dle = avl_first(&dl->dl_tree); dle; 1432 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1433 if (dump_opt['d'] >= 5) { 1434 char buf[128]; 1435 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1436 (longlong_t)dle->dle_mintxg, 1437 (longlong_t)dle->dle_bpobj.bpo_object); 1438 1439 dump_bpobj(&dle->dle_bpobj, buf, 0); 1440 } else { 1441 (void) printf("mintxg %llu -> obj %llu\n", 1442 (longlong_t)dle->dle_mintxg, 1443 (longlong_t)dle->dle_bpobj.bpo_object); 1444 1445 } 1446 } 1447} 1448 1449static avl_tree_t idx_tree; 1450static avl_tree_t domain_tree; 1451static boolean_t fuid_table_loaded; 1452static boolean_t sa_loaded; 1453sa_attr_type_t *sa_attr_table; 1454 1455static void 1456fuid_table_destroy() 1457{ 1458 if (fuid_table_loaded) { 1459 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1460 fuid_table_loaded = B_FALSE; 1461 } 1462} 1463 1464/* 1465 * print uid or gid information. 1466 * For normal POSIX id just the id is printed in decimal format. 1467 * For CIFS files with FUID the fuid is printed in hex followed by 1468 * the domain-rid string. 1469 */ 1470static void 1471print_idstr(uint64_t id, const char *id_type) 1472{ 1473 if (FUID_INDEX(id)) { 1474 char *domain; 1475 1476 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1477 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1478 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1479 } else { 1480 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1481 } 1482 1483} 1484 1485static void 1486dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1487{ 1488 uint32_t uid_idx, gid_idx; 1489 1490 uid_idx = FUID_INDEX(uid); 1491 gid_idx = FUID_INDEX(gid); 1492 1493 /* Load domain table, if not already loaded */ 1494 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1495 uint64_t fuid_obj; 1496 1497 /* first find the fuid object. It lives in the master node */ 1498 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1499 8, 1, &fuid_obj) == 0); 1500 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1501 (void) zfs_fuid_table_load(os, fuid_obj, 1502 &idx_tree, &domain_tree); 1503 fuid_table_loaded = B_TRUE; 1504 } 1505 1506 print_idstr(uid, "uid"); 1507 print_idstr(gid, "gid"); 1508} 1509 1510/*ARGSUSED*/ 1511static void 1512dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1513{ 1514 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1515 sa_handle_t *hdl; 1516 uint64_t xattr, rdev, gen; 1517 uint64_t uid, gid, mode, fsize, parent, links; 1518 uint64_t pflags; 1519 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1520 time_t z_crtime, z_atime, z_mtime, z_ctime; 1521 sa_bulk_attr_t bulk[12]; 1522 int idx = 0; 1523 int error; 1524 1525 if (!sa_loaded) { 1526 uint64_t sa_attrs = 0; 1527 uint64_t version; 1528 1529 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1530 8, 1, &version) == 0); 1531 if (version >= ZPL_VERSION_SA) { 1532 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1533 8, 1, &sa_attrs) == 0); 1534 } 1535 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1536 ZPL_END, &sa_attr_table)) != 0) { 1537 (void) printf("sa_setup failed errno %d, can't " 1538 "display znode contents\n", error); 1539 return; 1540 } 1541 sa_loaded = B_TRUE; 1542 } 1543 1544 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1545 (void) printf("Failed to get handle for SA znode\n"); 1546 return; 1547 } 1548 1549 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1550 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1551 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1552 &links, 8); 1553 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1554 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1555 &mode, 8); 1556 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1557 NULL, &parent, 8); 1558 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1559 &fsize, 8); 1560 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1561 acctm, 16); 1562 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1563 modtm, 16); 1564 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1565 crtm, 16); 1566 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1567 chgtm, 16); 1568 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1569 &pflags, 8); 1570 1571 if (sa_bulk_lookup(hdl, bulk, idx)) { 1572 (void) sa_handle_destroy(hdl); 1573 return; 1574 } 1575 1576 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1577 if (error != 0) { 1578 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1579 (u_longlong_t)object); 1580 } 1581 if (dump_opt['d'] < 3) { 1582 (void) printf("\t%s\n", path); 1583 (void) sa_handle_destroy(hdl); 1584 return; 1585 } 1586 1587 z_crtime = (time_t)crtm[0]; 1588 z_atime = (time_t)acctm[0]; 1589 z_mtime = (time_t)modtm[0]; 1590 z_ctime = (time_t)chgtm[0]; 1591 1592 (void) printf("\tpath %s\n", path); 1593 dump_uidgid(os, uid, gid); 1594 (void) printf("\tatime %s", ctime(&z_atime)); 1595 (void) printf("\tmtime %s", ctime(&z_mtime)); 1596 (void) printf("\tctime %s", ctime(&z_ctime)); 1597 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1598 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1599 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1600 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1601 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1602 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1603 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1604 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1605 sizeof (uint64_t)) == 0) 1606 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1607 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1608 sizeof (uint64_t)) == 0) 1609 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1610 sa_handle_destroy(hdl); 1611} 1612 1613/*ARGSUSED*/ 1614static void 1615dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1616{ 1617} 1618 1619/*ARGSUSED*/ 1620static void 1621dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1622{ 1623} 1624 1625static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1626 dump_none, /* unallocated */ 1627 dump_zap, /* object directory */ 1628 dump_uint64, /* object array */ 1629 dump_none, /* packed nvlist */ 1630 dump_packed_nvlist, /* packed nvlist size */ 1631 dump_none, /* bplist */ 1632 dump_none, /* bplist header */ 1633 dump_none, /* SPA space map header */ 1634 dump_none, /* SPA space map */ 1635 dump_none, /* ZIL intent log */ 1636 dump_dnode, /* DMU dnode */ 1637 dump_dmu_objset, /* DMU objset */ 1638 dump_dsl_dir, /* DSL directory */ 1639 dump_zap, /* DSL directory child map */ 1640 dump_zap, /* DSL dataset snap map */ 1641 dump_zap, /* DSL props */ 1642 dump_dsl_dataset, /* DSL dataset */ 1643 dump_znode, /* ZFS znode */ 1644 dump_acl, /* ZFS V0 ACL */ 1645 dump_uint8, /* ZFS plain file */ 1646 dump_zpldir, /* ZFS directory */ 1647 dump_zap, /* ZFS master node */ 1648 dump_zap, /* ZFS delete queue */ 1649 dump_uint8, /* zvol object */ 1650 dump_zap, /* zvol prop */ 1651 dump_uint8, /* other uint8[] */ 1652 dump_uint64, /* other uint64[] */ 1653 dump_zap, /* other ZAP */ 1654 dump_zap, /* persistent error log */ 1655 dump_uint8, /* SPA history */ 1656 dump_history_offsets, /* SPA history offsets */ 1657 dump_zap, /* Pool properties */ 1658 dump_zap, /* DSL permissions */ 1659 dump_acl, /* ZFS ACL */ 1660 dump_uint8, /* ZFS SYSACL */ 1661 dump_none, /* FUID nvlist */ 1662 dump_packed_nvlist, /* FUID nvlist size */ 1663 dump_zap, /* DSL dataset next clones */ 1664 dump_zap, /* DSL scrub queue */ 1665 dump_zap, /* ZFS user/group used */ 1666 dump_zap, /* ZFS user/group quota */ 1667 dump_zap, /* snapshot refcount tags */ 1668 dump_ddt_zap, /* DDT ZAP object */ 1669 dump_zap, /* DDT statistics */ 1670 dump_znode, /* SA object */ 1671 dump_zap, /* SA Master Node */ 1672 dump_sa_attrs, /* SA attribute registration */ 1673 dump_sa_layouts, /* SA attribute layouts */ 1674 dump_zap, /* DSL scrub translations */ 1675 dump_none, /* fake dedup BP */ 1676 dump_zap, /* deadlist */ 1677 dump_none, /* deadlist hdr */ 1678 dump_zap, /* dsl clones */ 1679 dump_none, /* bpobj subobjs */ 1680 dump_unknown, /* Unknown type, must be last */ 1681}; 1682 1683static void 1684dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1685{ 1686 dmu_buf_t *db = NULL; 1687 dmu_object_info_t doi; 1688 dnode_t *dn; 1689 void *bonus = NULL; 1690 size_t bsize = 0; 1691 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1692 char bonus_size[32]; 1693 char aux[50]; 1694 int error; 1695 1696 if (*print_header) { 1697 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1698 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1699 "%full", "type"); 1700 *print_header = 0; 1701 } 1702 1703 if (object == 0) { 1704 dn = DMU_META_DNODE(os); 1705 } else { 1706 error = dmu_bonus_hold(os, object, FTAG, &db); 1707 if (error) 1708 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1709 object, error); 1710 bonus = db->db_data; 1711 bsize = db->db_size; 1712 dn = DB_DNODE((dmu_buf_impl_t *)db); 1713 } 1714 dmu_object_info_from_dnode(dn, &doi); 1715 1716 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1717 zdb_nicenum(doi.doi_data_block_size, dblk); 1718 zdb_nicenum(doi.doi_max_offset, lsize); 1719 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1720 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1721 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1722 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1723 doi.doi_max_offset); 1724 1725 aux[0] = '\0'; 1726 1727 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1728 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1729 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1730 } 1731 1732 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1733 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1734 ZDB_COMPRESS_NAME(doi.doi_compress)); 1735 } 1736 1737 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1738 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1739 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1740 1741 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1742 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1743 "", "", "", "", "", bonus_size, "bonus", 1744 ZDB_OT_NAME(doi.doi_bonus_type)); 1745 } 1746 1747 if (verbosity >= 4) { 1748 (void) printf("\tdnode flags: %s%s%s\n", 1749 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1750 "USED_BYTES " : "", 1751 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1752 "USERUSED_ACCOUNTED " : "", 1753 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1754 "SPILL_BLKPTR" : ""); 1755 (void) printf("\tdnode maxblkid: %llu\n", 1756 (longlong_t)dn->dn_phys->dn_maxblkid); 1757 1758 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1759 bonus, bsize); 1760 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1761 *print_header = 1; 1762 } 1763 1764 if (verbosity >= 5) 1765 dump_indirect(dn); 1766 1767 if (verbosity >= 5) { 1768 /* 1769 * Report the list of segments that comprise the object. 1770 */ 1771 uint64_t start = 0; 1772 uint64_t end; 1773 uint64_t blkfill = 1; 1774 int minlvl = 1; 1775 1776 if (dn->dn_type == DMU_OT_DNODE) { 1777 minlvl = 0; 1778 blkfill = DNODES_PER_BLOCK; 1779 } 1780 1781 for (;;) { 1782 char segsize[32]; 1783 error = dnode_next_offset(dn, 1784 0, &start, minlvl, blkfill, 0); 1785 if (error) 1786 break; 1787 end = start; 1788 error = dnode_next_offset(dn, 1789 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1790 zdb_nicenum(end - start, segsize); 1791 (void) printf("\t\tsegment [%016llx, %016llx)" 1792 " size %5s\n", (u_longlong_t)start, 1793 (u_longlong_t)end, segsize); 1794 if (error) 1795 break; 1796 start = end; 1797 } 1798 } 1799 1800 if (db != NULL) 1801 dmu_buf_rele(db, FTAG); 1802} 1803 1804static char *objset_types[DMU_OST_NUMTYPES] = { 1805 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1806 1807static void 1808dump_dir(objset_t *os) 1809{ 1810 dmu_objset_stats_t dds; 1811 uint64_t object, object_count; 1812 uint64_t refdbytes, usedobjs, scratch; 1813 char numbuf[32]; 1814 char blkbuf[BP_SPRINTF_LEN + 20]; 1815 char osname[MAXNAMELEN]; 1816 char *type = "UNKNOWN"; 1817 int verbosity = dump_opt['d']; 1818 int print_header = 1; 1819 int i, error; 1820 1821 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1822 dmu_objset_fast_stat(os, &dds); 1823 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1824 1825 if (dds.dds_type < DMU_OST_NUMTYPES) 1826 type = objset_types[dds.dds_type]; 1827 1828 if (dds.dds_type == DMU_OST_META) { 1829 dds.dds_creation_txg = TXG_INITIAL; 1830 usedobjs = BP_GET_FILL(os->os_rootbp); 1831 refdbytes = os->os_spa->spa_dsl_pool-> 1832 dp_mos_dir->dd_phys->dd_used_bytes; 1833 } else { 1834 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1835 } 1836 1837 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1838 1839 zdb_nicenum(refdbytes, numbuf); 1840 1841 if (verbosity >= 4) { 1842 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1843 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1844 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1845 } else { 1846 blkbuf[0] = '\0'; 1847 } 1848 1849 dmu_objset_name(os, osname); 1850 1851 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1852 "%s, %llu objects%s\n", 1853 osname, type, (u_longlong_t)dmu_objset_id(os), 1854 (u_longlong_t)dds.dds_creation_txg, 1855 numbuf, (u_longlong_t)usedobjs, blkbuf); 1856 1857 if (zopt_objects != 0) { 1858 for (i = 0; i < zopt_objects; i++) 1859 dump_object(os, zopt_object[i], verbosity, 1860 &print_header); 1861 (void) printf("\n"); 1862 return; 1863 } 1864 1865 if (dump_opt['i'] != 0 || verbosity >= 2) 1866 dump_intent_log(dmu_objset_zil(os)); 1867 1868 if (dmu_objset_ds(os) != NULL) 1869 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1870 1871 if (verbosity < 2) 1872 return; 1873 1874 if (BP_IS_HOLE(os->os_rootbp)) 1875 return; 1876 1877 dump_object(os, 0, verbosity, &print_header); 1878 object_count = 0; 1879 if (DMU_USERUSED_DNODE(os) != NULL && 1880 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1881 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1882 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1883 } 1884 1885 object = 0; 1886 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1887 dump_object(os, object, verbosity, &print_header); 1888 object_count++; 1889 } 1890 1891 ASSERT3U(object_count, ==, usedobjs); 1892 1893 (void) printf("\n"); 1894 1895 if (error != ESRCH) { 1896 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1897 abort(); 1898 } 1899} 1900 1901static void 1902dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1903{ 1904 time_t timestamp = ub->ub_timestamp; 1905 1906 (void) printf(header ? header : ""); 1907 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1908 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1909 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1910 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1911 (void) printf("\ttimestamp = %llu UTC = %s", 1912 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1913 if (dump_opt['u'] >= 3) { 1914 char blkbuf[BP_SPRINTF_LEN]; 1915 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1916 (void) printf("\trootbp = %s\n", blkbuf); 1917 } 1918 (void) printf(footer ? footer : ""); 1919} 1920 1921static void 1922dump_config(spa_t *spa) 1923{ 1924 dmu_buf_t *db; 1925 size_t nvsize = 0; 1926 int error = 0; 1927 1928 1929 error = dmu_bonus_hold(spa->spa_meta_objset, 1930 spa->spa_config_object, FTAG, &db); 1931 1932 if (error == 0) { 1933 nvsize = *(uint64_t *)db->db_data; 1934 dmu_buf_rele(db, FTAG); 1935 1936 (void) printf("\nMOS Configuration:\n"); 1937 dump_packed_nvlist(spa->spa_meta_objset, 1938 spa->spa_config_object, (void *)&nvsize, 1); 1939 } else { 1940 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1941 (u_longlong_t)spa->spa_config_object, error); 1942 } 1943} 1944 1945static void 1946dump_cachefile(const char *cachefile) 1947{ 1948 int fd; 1949 struct stat64 statbuf; 1950 char *buf; 1951 nvlist_t *config; 1952 1953 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1954 (void) printf("cannot open '%s': %s\n", cachefile, 1955 strerror(errno)); 1956 exit(1); 1957 } 1958 1959 if (fstat64(fd, &statbuf) != 0) { 1960 (void) printf("failed to stat '%s': %s\n", cachefile, 1961 strerror(errno)); 1962 exit(1); 1963 } 1964 1965 if ((buf = malloc(statbuf.st_size)) == NULL) { 1966 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1967 (u_longlong_t)statbuf.st_size); 1968 exit(1); 1969 } 1970 1971 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1972 (void) fprintf(stderr, "failed to read %llu bytes\n", 1973 (u_longlong_t)statbuf.st_size); 1974 exit(1); 1975 } 1976 1977 (void) close(fd); 1978 1979 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1980 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1981 exit(1); 1982 } 1983 1984 free(buf); 1985 1986 dump_nvlist(config, 0); 1987 1988 nvlist_free(config); 1989} 1990 1991#define ZDB_MAX_UB_HEADER_SIZE 32 1992 1993static void 1994dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1995{ 1996 vdev_t vd; 1997 vdev_t *vdp = &vd; 1998 char header[ZDB_MAX_UB_HEADER_SIZE]; 1999 2000 vd.vdev_ashift = ashift; 2001 vdp->vdev_top = vdp; 2002 2003 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2004 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2005 uberblock_t *ub = (void *)((char *)lbl + uoff); 2006 2007 if (uberblock_verify(ub)) 2008 continue; 2009 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2010 "Uberblock[%d]\n", i); 2011 dump_uberblock(ub, header, ""); 2012 } 2013} 2014 2015static void 2016dump_label(const char *dev) 2017{ 2018 int fd; 2019 vdev_label_t label; 2020 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2021 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2022 struct stat64 statbuf; 2023 uint64_t psize, ashift; 2024 int len = strlen(dev) + 1; 2025 2026 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2027 len++; 2028 path = malloc(len); 2029 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2030 } else { 2031 path = strdup(dev); 2032 } 2033 2034 if ((fd = open64(path, O_RDONLY)) < 0) { 2035 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2036 free(path); 2037 exit(1); 2038 } 2039 2040 if (fstat64(fd, &statbuf) != 0) { 2041 (void) printf("failed to stat '%s': %s\n", path, 2042 strerror(errno)); 2043 free(path); 2044 (void) close(fd); 2045 exit(1); 2046 } 2047 2048 if (S_ISBLK(statbuf.st_mode)) { 2049 (void) printf("cannot use '%s': character device required\n", 2050 path); 2051 free(path); 2052 (void) close(fd); 2053 exit(1); 2054 } 2055 2056 psize = statbuf.st_size; 2057 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2058 2059 for (int l = 0; l < VDEV_LABELS; l++) { 2060 nvlist_t *config = NULL; 2061 2062 (void) printf("--------------------------------------------\n"); 2063 (void) printf("LABEL %d\n", l); 2064 (void) printf("--------------------------------------------\n"); 2065 2066 if (pread64(fd, &label, sizeof (label), 2067 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2068 (void) printf("failed to read label %d\n", l); 2069 continue; 2070 } 2071 2072 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2073 (void) printf("failed to unpack label %d\n", l); 2074 ashift = SPA_MINBLOCKSHIFT; 2075 } else { 2076 nvlist_t *vdev_tree = NULL; 2077 2078 dump_nvlist(config, 4); 2079 if ((nvlist_lookup_nvlist(config, 2080 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2081 (nvlist_lookup_uint64(vdev_tree, 2082 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2083 ashift = SPA_MINBLOCKSHIFT; 2084 nvlist_free(config); 2085 } 2086 if (dump_opt['u']) 2087 dump_label_uberblocks(&label, ashift); 2088 } 2089 2090 free(path); 2091 (void) close(fd); 2092} 2093 2094/*ARGSUSED*/ 2095static int 2096dump_one_dir(const char *dsname, void *arg) 2097{ 2098 int error; 2099 objset_t *os; 2100 2101 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2102 if (error) { 2103 (void) printf("Could not open %s, error %d\n", dsname, error); 2104 return (0); 2105 } 2106 dump_dir(os); 2107 dmu_objset_disown(os, FTAG); 2108 fuid_table_destroy(); 2109 sa_loaded = B_FALSE; 2110 return (0); 2111} 2112 2113/* 2114 * Block statistics. 2115 */ 2116#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2117typedef struct zdb_blkstats { 2118 uint64_t zb_asize; 2119 uint64_t zb_lsize; 2120 uint64_t zb_psize; 2121 uint64_t zb_count; 2122 uint64_t zb_gangs; 2123 uint64_t zb_ditto_samevdev; 2124 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2125} zdb_blkstats_t; 2126 2127/* 2128 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2129 */ 2130#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2131#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2132#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2133#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2134 2135static char *zdb_ot_extname[] = { 2136 "deferred free", 2137 "dedup ditto", 2138 "other", 2139 "Total", 2140}; 2141 2142#define ZB_TOTAL DN_MAX_LEVELS 2143 2144typedef struct zdb_cb { 2145 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2146 uint64_t zcb_dedup_asize; 2147 uint64_t zcb_dedup_blocks; 2148 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2149 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2150 [BPE_PAYLOAD_SIZE]; 2151 uint64_t zcb_start; 2152 uint64_t zcb_lastprint; 2153 uint64_t zcb_totalasize; 2154 uint64_t zcb_errors[256]; 2155 int zcb_readfails; 2156 int zcb_haderrors; 2157 spa_t *zcb_spa; 2158} zdb_cb_t; 2159 2160static void 2161zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2162 dmu_object_type_t type) 2163{ 2164 uint64_t refcnt = 0; 2165 2166 ASSERT(type < ZDB_OT_TOTAL); 2167 2168 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2169 return; 2170 2171 for (int i = 0; i < 4; i++) { 2172 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2173 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2174 int equal; 2175 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2176 2177 zb->zb_asize += BP_GET_ASIZE(bp); 2178 zb->zb_lsize += BP_GET_LSIZE(bp); 2179 zb->zb_psize += BP_GET_PSIZE(bp); 2180 zb->zb_count++; 2181 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2182 2183 zb->zb_gangs += BP_COUNT_GANG(bp); 2184 2185 switch (BP_GET_NDVAS(bp)) { 2186 case 2: 2187 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2188 DVA_GET_VDEV(&bp->blk_dva[1])) 2189 zb->zb_ditto_samevdev++; 2190 break; 2191 case 3: 2192 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2193 DVA_GET_VDEV(&bp->blk_dva[1])) + 2194 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2195 DVA_GET_VDEV(&bp->blk_dva[2])) + 2196 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2197 DVA_GET_VDEV(&bp->blk_dva[2])); 2198 if (equal != 0) 2199 zb->zb_ditto_samevdev++; 2200 break; 2201 } 2202 2203 } 2204 2205 if (BP_IS_EMBEDDED(bp)) { 2206 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2207 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2208 [BPE_GET_PSIZE(bp)]++; 2209 return; 2210 } 2211 2212 if (dump_opt['L']) 2213 return; 2214 2215 if (BP_GET_DEDUP(bp)) { 2216 ddt_t *ddt; 2217 ddt_entry_t *dde; 2218 2219 ddt = ddt_select(zcb->zcb_spa, bp); 2220 ddt_enter(ddt); 2221 dde = ddt_lookup(ddt, bp, B_FALSE); 2222 2223 if (dde == NULL) { 2224 refcnt = 0; 2225 } else { 2226 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2227 ddt_phys_decref(ddp); 2228 refcnt = ddp->ddp_refcnt; 2229 if (ddt_phys_total_refcnt(dde) == 0) 2230 ddt_remove(ddt, dde); 2231 } 2232 ddt_exit(ddt); 2233 } 2234 2235 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2236 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2237 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2238} 2239 2240/* ARGSUSED */ 2241static void 2242zdb_blkptr_done(zio_t *zio) 2243{ 2244 spa_t *spa = zio->io_spa; 2245 blkptr_t *bp = zio->io_bp; 2246 int ioerr = zio->io_error; 2247 zdb_cb_t *zcb = zio->io_private; 2248 zbookmark_t *zb = &zio->io_bookmark; 2249 2250 zio_data_buf_free(zio->io_data, zio->io_size); 2251 2252 mutex_enter(&spa->spa_scrub_lock); 2253 spa->spa_scrub_inflight--; 2254 cv_broadcast(&spa->spa_scrub_io_cv); 2255 2256 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2257 char blkbuf[BP_SPRINTF_LEN]; 2258 2259 zcb->zcb_haderrors = 1; 2260 zcb->zcb_errors[ioerr]++; 2261 2262 if (dump_opt['b'] >= 2) 2263 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2264 else 2265 blkbuf[0] = '\0'; 2266 2267 (void) printf("zdb_blkptr_cb: " 2268 "Got error %d reading " 2269 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2270 ioerr, 2271 (u_longlong_t)zb->zb_objset, 2272 (u_longlong_t)zb->zb_object, 2273 (u_longlong_t)zb->zb_level, 2274 (u_longlong_t)zb->zb_blkid, 2275 blkbuf); 2276 } 2277 mutex_exit(&spa->spa_scrub_lock); 2278} 2279 2280/* ARGSUSED */ 2281static int 2282zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2283 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2284{ 2285 zdb_cb_t *zcb = arg; 2286 dmu_object_type_t type; 2287 boolean_t is_metadata; 2288 2289 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2290 char blkbuf[BP_SPRINTF_LEN]; 2291 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2292 (void) printf("objset %llu object %llu " 2293 "level %lld offset 0x%llx %s\n", 2294 (u_longlong_t)zb->zb_objset, 2295 (u_longlong_t)zb->zb_object, 2296 (longlong_t)zb->zb_level, 2297 (u_longlong_t)blkid2offset(dnp, bp, zb), 2298 blkbuf); 2299 } 2300 2301 if (BP_IS_HOLE(bp)) 2302 return (0); 2303 2304 type = BP_GET_TYPE(bp); 2305 2306 zdb_count_block(zcb, zilog, bp, 2307 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2308 2309 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2310 2311 if (!BP_IS_EMBEDDED(bp) && 2312 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2313 size_t size = BP_GET_PSIZE(bp); 2314 void *data = zio_data_buf_alloc(size); 2315 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2316 2317 /* If it's an intent log block, failure is expected. */ 2318 if (zb->zb_level == ZB_ZIL_LEVEL) 2319 flags |= ZIO_FLAG_SPECULATIVE; 2320 2321 mutex_enter(&spa->spa_scrub_lock); 2322 while (spa->spa_scrub_inflight > max_inflight) 2323 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2324 spa->spa_scrub_inflight++; 2325 mutex_exit(&spa->spa_scrub_lock); 2326 2327 zio_nowait(zio_read(NULL, spa, bp, data, size, 2328 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2329 } 2330 2331 zcb->zcb_readfails = 0; 2332 2333 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2334 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2335 uint64_t now = gethrtime(); 2336 char buf[10]; 2337 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2338 int kb_per_sec = 2339 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2340 int sec_remaining = 2341 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2342 2343 zfs_nicenum(bytes, buf, sizeof (buf)); 2344 (void) fprintf(stderr, 2345 "\r%5s completed (%4dMB/s) " 2346 "estimated time remaining: %uhr %02umin %02usec ", 2347 buf, kb_per_sec / 1024, 2348 sec_remaining / 60 / 60, 2349 sec_remaining / 60 % 60, 2350 sec_remaining % 60); 2351 2352 zcb->zcb_lastprint = now; 2353 } 2354 2355 return (0); 2356} 2357 2358static void 2359zdb_leak(void *arg, uint64_t start, uint64_t size) 2360{ 2361 vdev_t *vd = arg; 2362 2363 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2364 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2365} 2366 2367static metaslab_ops_t zdb_metaslab_ops = { 2368 NULL, /* alloc */ 2369 NULL /* fragmented */ 2370}; 2371 2372static void 2373zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2374{ 2375 ddt_bookmark_t ddb = { 0 }; 2376 ddt_entry_t dde; 2377 int error; 2378 2379 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2380 blkptr_t blk; 2381 ddt_phys_t *ddp = dde.dde_phys; 2382 2383 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2384 return; 2385 2386 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2387 2388 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2389 if (ddp->ddp_phys_birth == 0) 2390 continue; 2391 ddt_bp_create(ddb.ddb_checksum, 2392 &dde.dde_key, ddp, &blk); 2393 if (p == DDT_PHYS_DITTO) { 2394 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2395 } else { 2396 zcb->zcb_dedup_asize += 2397 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2398 zcb->zcb_dedup_blocks++; 2399 } 2400 } 2401 if (!dump_opt['L']) { 2402 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2403 ddt_enter(ddt); 2404 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2405 ddt_exit(ddt); 2406 } 2407 } 2408 2409 ASSERT(error == ENOENT); 2410} 2411 2412static void 2413zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2414{ 2415 zcb->zcb_spa = spa; 2416 2417 if (!dump_opt['L']) { 2418 vdev_t *rvd = spa->spa_root_vdev; 2419 for (int c = 0; c < rvd->vdev_children; c++) { 2420 vdev_t *vd = rvd->vdev_child[c]; 2421 for (int m = 0; m < vd->vdev_ms_count; m++) { 2422 metaslab_t *msp = vd->vdev_ms[m]; 2423 mutex_enter(&msp->ms_lock); 2424 metaslab_unload(msp); 2425 2426 /* 2427 * For leak detection, we overload the metaslab 2428 * ms_tree to contain allocated segments 2429 * instead of free segments. As a result, 2430 * we can't use the normal metaslab_load/unload 2431 * interfaces. 2432 */ 2433 if (msp->ms_sm != NULL) { 2434 msp->ms_ops = &zdb_metaslab_ops; 2435 VERIFY0(space_map_load(msp->ms_sm, 2436 msp->ms_tree, SM_ALLOC)); 2437 msp->ms_loaded = B_TRUE; 2438 } 2439 mutex_exit(&msp->ms_lock); 2440 } 2441 } 2442 } 2443 2444 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2445 2446 zdb_ddt_leak_init(spa, zcb); 2447 2448 spa_config_exit(spa, SCL_CONFIG, FTAG); 2449} 2450 2451static void 2452zdb_leak_fini(spa_t *spa) 2453{ 2454 if (!dump_opt['L']) { 2455 vdev_t *rvd = spa->spa_root_vdev; 2456 for (int c = 0; c < rvd->vdev_children; c++) { 2457 vdev_t *vd = rvd->vdev_child[c]; 2458 for (int m = 0; m < vd->vdev_ms_count; m++) { 2459 metaslab_t *msp = vd->vdev_ms[m]; 2460 mutex_enter(&msp->ms_lock); 2461 2462 /* 2463 * The ms_tree has been overloaded to 2464 * contain allocated segments. Now that we 2465 * finished traversing all blocks, any 2466 * block that remains in the ms_tree 2467 * represents an allocated block that we 2468 * did not claim during the traversal. 2469 * Claimed blocks would have been removed 2470 * from the ms_tree. 2471 */ 2472 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2473 msp->ms_loaded = B_FALSE; 2474 2475 mutex_exit(&msp->ms_lock); 2476 } 2477 } 2478 } 2479} 2480 2481/* ARGSUSED */ 2482static int 2483count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2484{ 2485 zdb_cb_t *zcb = arg; 2486 2487 if (dump_opt['b'] >= 5) { 2488 char blkbuf[BP_SPRINTF_LEN]; 2489 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2490 (void) printf("[%s] %s\n", 2491 "deferred free", blkbuf); 2492 } 2493 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2494 return (0); 2495} 2496 2497static int 2498dump_block_stats(spa_t *spa) 2499{ 2500 zdb_cb_t zcb = { 0 }; 2501 zdb_blkstats_t *zb, *tzb; 2502 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2503 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2504 boolean_t leaks = B_FALSE; 2505 2506 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2507 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2508 (dump_opt['c'] == 1) ? "metadata " : "", 2509 dump_opt['c'] ? "checksums " : "", 2510 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2511 !dump_opt['L'] ? "nothing leaked " : ""); 2512 2513 /* 2514 * Load all space maps as SM_ALLOC maps, then traverse the pool 2515 * claiming each block we discover. If the pool is perfectly 2516 * consistent, the space maps will be empty when we're done. 2517 * Anything left over is a leak; any block we can't claim (because 2518 * it's not part of any space map) is a double allocation, 2519 * reference to a freed block, or an unclaimed log block. 2520 */ 2521 zdb_leak_init(spa, &zcb); 2522 2523 /* 2524 * If there's a deferred-free bplist, process that first. 2525 */ 2526 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2527 count_block_cb, &zcb, NULL); 2528 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2529 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2530 count_block_cb, &zcb, NULL); 2531 } 2532 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2533 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2534 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2535 &zcb, NULL)); 2536 } 2537 2538 if (dump_opt['c'] > 1) 2539 flags |= TRAVERSE_PREFETCH_DATA; 2540 2541 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2542 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2543 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2544 2545 /* 2546 * If we've traversed the data blocks then we need to wait for those 2547 * I/Os to complete. We leverage "The Godfather" zio to wait on 2548 * all async I/Os to complete. 2549 */ 2550 if (dump_opt['c']) { 2551 (void) zio_wait(spa->spa_async_zio_root); 2552 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2553 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2554 ZIO_FLAG_GODFATHER); 2555 } 2556 2557 if (zcb.zcb_haderrors) { 2558 (void) printf("\nError counts:\n\n"); 2559 (void) printf("\t%5s %s\n", "errno", "count"); 2560 for (int e = 0; e < 256; e++) { 2561 if (zcb.zcb_errors[e] != 0) { 2562 (void) printf("\t%5d %llu\n", 2563 e, (u_longlong_t)zcb.zcb_errors[e]); 2564 } 2565 } 2566 } 2567 2568 /* 2569 * Report any leaked segments. 2570 */ 2571 zdb_leak_fini(spa); 2572 2573 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2574 2575 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2576 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2577 2578 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2579 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2580 2581 if (total_found == total_alloc) { 2582 if (!dump_opt['L']) 2583 (void) printf("\n\tNo leaks (block sum matches space" 2584 " maps exactly)\n"); 2585 } else { 2586 (void) printf("block traversal size %llu != alloc %llu " 2587 "(%s %lld)\n", 2588 (u_longlong_t)total_found, 2589 (u_longlong_t)total_alloc, 2590 (dump_opt['L']) ? "unreachable" : "leaked", 2591 (longlong_t)(total_alloc - total_found)); 2592 leaks = B_TRUE; 2593 } 2594 2595 if (tzb->zb_count == 0) 2596 return (2); 2597 2598 (void) printf("\n"); 2599 (void) printf("\tbp count: %10llu\n", 2600 (u_longlong_t)tzb->zb_count); 2601 (void) printf("\tganged count: %10llu\n", 2602 (longlong_t)tzb->zb_gangs); 2603 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2604 (u_longlong_t)tzb->zb_lsize, 2605 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2606 (void) printf("\tbp physical: %10llu avg:" 2607 " %6llu compression: %6.2f\n", 2608 (u_longlong_t)tzb->zb_psize, 2609 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2610 (double)tzb->zb_lsize / tzb->zb_psize); 2611 (void) printf("\tbp allocated: %10llu avg:" 2612 " %6llu compression: %6.2f\n", 2613 (u_longlong_t)tzb->zb_asize, 2614 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2615 (double)tzb->zb_lsize / tzb->zb_asize); 2616 (void) printf("\tbp deduped: %10llu ref>1:" 2617 " %6llu deduplication: %6.2f\n", 2618 (u_longlong_t)zcb.zcb_dedup_asize, 2619 (u_longlong_t)zcb.zcb_dedup_blocks, 2620 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2621 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2622 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2623 2624 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2625 if (zcb.zcb_embedded_blocks[i] == 0) 2626 continue; 2627 (void) printf("\n"); 2628 (void) printf("\tadditional, non-pointer bps of type %u: " 2629 "%10llu\n", 2630 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2631 2632 if (dump_opt['b'] >= 3) { 2633 (void) printf("\t number of (compressed) bytes: " 2634 "number of bps\n"); 2635 dump_histogram(zcb.zcb_embedded_histogram[i], 2636 sizeof (zcb.zcb_embedded_histogram[i]) / 2637 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2638 } 2639 } 2640 2641 if (tzb->zb_ditto_samevdev != 0) { 2642 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2643 (longlong_t)tzb->zb_ditto_samevdev); 2644 } 2645 2646 if (dump_opt['b'] >= 2) { 2647 int l, t, level; 2648 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2649 "\t avg\t comp\t%%Total\tType\n"); 2650 2651 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2652 char csize[32], lsize[32], psize[32], asize[32]; 2653 char avg[32], gang[32]; 2654 char *typename; 2655 2656 if (t < DMU_OT_NUMTYPES) 2657 typename = dmu_ot[t].ot_name; 2658 else 2659 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2660 2661 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2662 (void) printf("%6s\t%5s\t%5s\t%5s" 2663 "\t%5s\t%5s\t%6s\t%s\n", 2664 "-", 2665 "-", 2666 "-", 2667 "-", 2668 "-", 2669 "-", 2670 "-", 2671 typename); 2672 continue; 2673 } 2674 2675 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2676 level = (l == -1 ? ZB_TOTAL : l); 2677 zb = &zcb.zcb_type[level][t]; 2678 2679 if (zb->zb_asize == 0) 2680 continue; 2681 2682 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2683 continue; 2684 2685 if (level == 0 && zb->zb_asize == 2686 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2687 continue; 2688 2689 zdb_nicenum(zb->zb_count, csize); 2690 zdb_nicenum(zb->zb_lsize, lsize); 2691 zdb_nicenum(zb->zb_psize, psize); 2692 zdb_nicenum(zb->zb_asize, asize); 2693 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2694 zdb_nicenum(zb->zb_gangs, gang); 2695 2696 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2697 "\t%5.2f\t%6.2f\t", 2698 csize, lsize, psize, asize, avg, 2699 (double)zb->zb_lsize / zb->zb_psize, 2700 100.0 * zb->zb_asize / tzb->zb_asize); 2701 2702 if (level == ZB_TOTAL) 2703 (void) printf("%s\n", typename); 2704 else 2705 (void) printf(" L%d %s\n", 2706 level, typename); 2707 2708 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2709 (void) printf("\t number of ganged " 2710 "blocks: %s\n", gang); 2711 } 2712 2713 if (dump_opt['b'] >= 4) { 2714 (void) printf("psize " 2715 "(in 512-byte sectors): " 2716 "number of blocks\n"); 2717 dump_histogram(zb->zb_psize_histogram, 2718 PSIZE_HISTO_SIZE, 0); 2719 } 2720 } 2721 } 2722 } 2723 2724 (void) printf("\n"); 2725 2726 if (leaks) 2727 return (2); 2728 2729 if (zcb.zcb_haderrors) 2730 return (3); 2731 2732 return (0); 2733} 2734 2735typedef struct zdb_ddt_entry { 2736 ddt_key_t zdde_key; 2737 uint64_t zdde_ref_blocks; 2738 uint64_t zdde_ref_lsize; 2739 uint64_t zdde_ref_psize; 2740 uint64_t zdde_ref_dsize; 2741 avl_node_t zdde_node; 2742} zdb_ddt_entry_t; 2743 2744/* ARGSUSED */ 2745static int 2746zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2747 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2748{ 2749 avl_tree_t *t = arg; 2750 avl_index_t where; 2751 zdb_ddt_entry_t *zdde, zdde_search; 2752 2753 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2754 return (0); 2755 2756 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2757 (void) printf("traversing objset %llu, %llu objects, " 2758 "%lu blocks so far\n", 2759 (u_longlong_t)zb->zb_objset, 2760 (u_longlong_t)BP_GET_FILL(bp), 2761 avl_numnodes(t)); 2762 } 2763 2764 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2765 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2766 return (0); 2767 2768 ddt_key_fill(&zdde_search.zdde_key, bp); 2769 2770 zdde = avl_find(t, &zdde_search, &where); 2771 2772 if (zdde == NULL) { 2773 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2774 zdde->zdde_key = zdde_search.zdde_key; 2775 avl_insert(t, zdde, where); 2776 } 2777 2778 zdde->zdde_ref_blocks += 1; 2779 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2780 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2781 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2782 2783 return (0); 2784} 2785 2786static void 2787dump_simulated_ddt(spa_t *spa) 2788{ 2789 avl_tree_t t; 2790 void *cookie = NULL; 2791 zdb_ddt_entry_t *zdde; 2792 ddt_histogram_t ddh_total = { 0 }; 2793 ddt_stat_t dds_total = { 0 }; 2794 2795 avl_create(&t, ddt_entry_compare, 2796 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2797 2798 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2799 2800 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2801 zdb_ddt_add_cb, &t); 2802 2803 spa_config_exit(spa, SCL_CONFIG, FTAG); 2804 2805 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2806 ddt_stat_t dds; 2807 uint64_t refcnt = zdde->zdde_ref_blocks; 2808 ASSERT(refcnt != 0); 2809 2810 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2811 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2812 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2813 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2814 2815 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2816 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2817 dds.dds_ref_psize = zdde->zdde_ref_psize; 2818 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2819 2820 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2821 &dds, 0); 2822 2823 umem_free(zdde, sizeof (*zdde)); 2824 } 2825 2826 avl_destroy(&t); 2827 2828 ddt_histogram_stat(&dds_total, &ddh_total); 2829 2830 (void) printf("Simulated DDT histogram:\n"); 2831 2832 zpool_dump_ddt(&dds_total, &ddh_total); 2833 2834 dump_dedup_ratio(&dds_total); 2835} 2836 2837static void 2838dump_zpool(spa_t *spa) 2839{ 2840 dsl_pool_t *dp = spa_get_dsl(spa); 2841 int rc = 0; 2842 2843 if (dump_opt['S']) { 2844 dump_simulated_ddt(spa); 2845 return; 2846 } 2847 2848 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2849 (void) printf("\nCached configuration:\n"); 2850 dump_nvlist(spa->spa_config, 8); 2851 } 2852 2853 if (dump_opt['C']) 2854 dump_config(spa); 2855 2856 if (dump_opt['u']) 2857 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2858 2859 if (dump_opt['D']) 2860 dump_all_ddts(spa); 2861 2862 if (dump_opt['d'] > 2 || dump_opt['m']) 2863 dump_metaslabs(spa); 2864 2865 if (dump_opt['d'] || dump_opt['i']) { 2866 dump_dir(dp->dp_meta_objset); 2867 if (dump_opt['d'] >= 3) { 2868 dump_bpobj(&spa->spa_deferred_bpobj, 2869 "Deferred frees", 0); 2870 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2871 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2872 "Pool snapshot frees", 0); 2873 } 2874 2875 if (spa_feature_is_active(spa, 2876 SPA_FEATURE_ASYNC_DESTROY)) { 2877 dump_bptree(spa->spa_meta_objset, 2878 spa->spa_dsl_pool->dp_bptree_obj, 2879 "Pool dataset frees"); 2880 } 2881 dump_dtl(spa->spa_root_vdev, 0); 2882 } 2883 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2884 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2885 } 2886 if (dump_opt['b'] || dump_opt['c']) 2887 rc = dump_block_stats(spa); 2888 2889 if (rc == 0) 2890 rc = verify_spacemap_refcounts(spa); 2891 2892 if (dump_opt['s']) 2893 show_pool_stats(spa); 2894 2895 if (dump_opt['h']) 2896 dump_history(spa); 2897 2898 if (rc != 0) 2899 exit(rc); 2900} 2901 2902#define ZDB_FLAG_CHECKSUM 0x0001 2903#define ZDB_FLAG_DECOMPRESS 0x0002 2904#define ZDB_FLAG_BSWAP 0x0004 2905#define ZDB_FLAG_GBH 0x0008 2906#define ZDB_FLAG_INDIRECT 0x0010 2907#define ZDB_FLAG_PHYS 0x0020 2908#define ZDB_FLAG_RAW 0x0040 2909#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2910 2911int flagbits[256]; 2912 2913static void 2914zdb_print_blkptr(blkptr_t *bp, int flags) 2915{ 2916 char blkbuf[BP_SPRINTF_LEN]; 2917 2918 if (flags & ZDB_FLAG_BSWAP) 2919 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2920 2921 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2922 (void) printf("%s\n", blkbuf); 2923} 2924 2925static void 2926zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2927{ 2928 int i; 2929 2930 for (i = 0; i < nbps; i++) 2931 zdb_print_blkptr(&bp[i], flags); 2932} 2933 2934static void 2935zdb_dump_gbh(void *buf, int flags) 2936{ 2937 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2938} 2939 2940static void 2941zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2942{ 2943 if (flags & ZDB_FLAG_BSWAP) 2944 byteswap_uint64_array(buf, size); 2945 (void) write(1, buf, size); 2946} 2947 2948static void 2949zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2950{ 2951 uint64_t *d = (uint64_t *)buf; 2952 int nwords = size / sizeof (uint64_t); 2953 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2954 int i, j; 2955 char *hdr, *c; 2956 2957 2958 if (do_bswap) 2959 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2960 else 2961 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2962 2963 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2964 2965 for (i = 0; i < nwords; i += 2) { 2966 (void) printf("%06llx: %016llx %016llx ", 2967 (u_longlong_t)(i * sizeof (uint64_t)), 2968 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2969 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2970 2971 c = (char *)&d[i]; 2972 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2973 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2974 (void) printf("\n"); 2975 } 2976} 2977 2978/* 2979 * There are two acceptable formats: 2980 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2981 * child[.child]* - For example: 0.1.1 2982 * 2983 * The second form can be used to specify arbitrary vdevs anywhere 2984 * in the heirarchy. For example, in a pool with a mirror of 2985 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2986 */ 2987static vdev_t * 2988zdb_vdev_lookup(vdev_t *vdev, char *path) 2989{ 2990 char *s, *p, *q; 2991 int i; 2992 2993 if (vdev == NULL) 2994 return (NULL); 2995 2996 /* First, assume the x.x.x.x format */ 2997 i = (int)strtoul(path, &s, 10); 2998 if (s == path || (s && *s != '.' && *s != '\0')) 2999 goto name; 3000 if (i < 0 || i >= vdev->vdev_children) 3001 return (NULL); 3002 3003 vdev = vdev->vdev_child[i]; 3004 if (*s == '\0') 3005 return (vdev); 3006 return (zdb_vdev_lookup(vdev, s+1)); 3007 3008name: 3009 for (i = 0; i < vdev->vdev_children; i++) { 3010 vdev_t *vc = vdev->vdev_child[i]; 3011 3012 if (vc->vdev_path == NULL) { 3013 vc = zdb_vdev_lookup(vc, path); 3014 if (vc == NULL) 3015 continue; 3016 else 3017 return (vc); 3018 } 3019 3020 p = strrchr(vc->vdev_path, '/'); 3021 p = p ? p + 1 : vc->vdev_path; 3022 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3023 3024 if (strcmp(vc->vdev_path, path) == 0) 3025 return (vc); 3026 if (strcmp(p, path) == 0) 3027 return (vc); 3028 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3029 return (vc); 3030 } 3031 3032 return (NULL); 3033} 3034 3035/* 3036 * Read a block from a pool and print it out. The syntax of the 3037 * block descriptor is: 3038 * 3039 * pool:vdev_specifier:offset:size[:flags] 3040 * 3041 * pool - The name of the pool you wish to read from 3042 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3043 * offset - offset, in hex, in bytes 3044 * size - Amount of data to read, in hex, in bytes 3045 * flags - A string of characters specifying options 3046 * b: Decode a blkptr at given offset within block 3047 * *c: Calculate and display checksums 3048 * d: Decompress data before dumping 3049 * e: Byteswap data before dumping 3050 * g: Display data as a gang block header 3051 * i: Display as an indirect block 3052 * p: Do I/O to physical offset 3053 * r: Dump raw data to stdout 3054 * 3055 * * = not yet implemented 3056 */ 3057static void 3058zdb_read_block(char *thing, spa_t *spa) 3059{ 3060 blkptr_t blk, *bp = &blk; 3061 dva_t *dva = bp->blk_dva; 3062 int flags = 0; 3063 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3064 zio_t *zio; 3065 vdev_t *vd; 3066 void *pbuf, *lbuf, *buf; 3067 char *s, *p, *dup, *vdev, *flagstr; 3068 int i, error; 3069 3070 dup = strdup(thing); 3071 s = strtok(dup, ":"); 3072 vdev = s ? s : ""; 3073 s = strtok(NULL, ":"); 3074 offset = strtoull(s ? s : "", NULL, 16); 3075 s = strtok(NULL, ":"); 3076 size = strtoull(s ? s : "", NULL, 16); 3077 s = strtok(NULL, ":"); 3078 flagstr = s ? s : ""; 3079 3080 s = NULL; 3081 if (size == 0) 3082 s = "size must not be zero"; 3083 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3084 s = "size must be a multiple of sector size"; 3085 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3086 s = "offset must be a multiple of sector size"; 3087 if (s) { 3088 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3089 free(dup); 3090 return; 3091 } 3092 3093 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3094 for (i = 0; flagstr[i]; i++) { 3095 int bit = flagbits[(uchar_t)flagstr[i]]; 3096 3097 if (bit == 0) { 3098 (void) printf("***Invalid flag: %c\n", 3099 flagstr[i]); 3100 continue; 3101 } 3102 flags |= bit; 3103 3104 /* If it's not something with an argument, keep going */ 3105 if ((bit & (ZDB_FLAG_CHECKSUM | 3106 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3107 continue; 3108 3109 p = &flagstr[i + 1]; 3110 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3111 blkptr_offset = strtoull(p, &p, 16); 3112 if (*p != ':' && *p != '\0') { 3113 (void) printf("***Invalid flag arg: '%s'\n", s); 3114 free(dup); 3115 return; 3116 } 3117 i += p - &flagstr[i + 1]; /* skip over the number */ 3118 } 3119 } 3120 3121 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3122 if (vd == NULL) { 3123 (void) printf("***Invalid vdev: %s\n", vdev); 3124 free(dup); 3125 return; 3126 } else { 3127 if (vd->vdev_path) 3128 (void) fprintf(stderr, "Found vdev: %s\n", 3129 vd->vdev_path); 3130 else 3131 (void) fprintf(stderr, "Found vdev type: %s\n", 3132 vd->vdev_ops->vdev_op_type); 3133 } 3134 3135 psize = size; 3136 lsize = size; 3137 3138 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3139 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3140 3141 BP_ZERO(bp); 3142 3143 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3144 DVA_SET_OFFSET(&dva[0], offset); 3145 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3146 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3147 3148 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3149 3150 BP_SET_LSIZE(bp, lsize); 3151 BP_SET_PSIZE(bp, psize); 3152 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3153 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3154 BP_SET_TYPE(bp, DMU_OT_NONE); 3155 BP_SET_LEVEL(bp, 0); 3156 BP_SET_DEDUP(bp, 0); 3157 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3158 3159 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3160 zio = zio_root(spa, NULL, NULL, 0); 3161 3162 if (vd == vd->vdev_top) { 3163 /* 3164 * Treat this as a normal block read. 3165 */ 3166 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3167 ZIO_PRIORITY_SYNC_READ, 3168 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3169 } else { 3170 /* 3171 * Treat this as a vdev child I/O. 3172 */ 3173 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3174 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3175 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3176 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3177 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3178 } 3179 3180 error = zio_wait(zio); 3181 spa_config_exit(spa, SCL_STATE, FTAG); 3182 3183 if (error) { 3184 (void) printf("Read of %s failed, error: %d\n", thing, error); 3185 goto out; 3186 } 3187 3188 if (flags & ZDB_FLAG_DECOMPRESS) { 3189 /* 3190 * We don't know how the data was compressed, so just try 3191 * every decompress function at every inflated blocksize. 3192 */ 3193 enum zio_compress c; 3194 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3195 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3196 3197 bcopy(pbuf, pbuf2, psize); 3198 3199 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3200 SPA_MAXBLOCKSIZE - psize) == 0); 3201 3202 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3203 SPA_MAXBLOCKSIZE - psize) == 0); 3204 3205 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3206 lsize -= SPA_MINBLOCKSIZE) { 3207 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3208 if (zio_decompress_data(c, pbuf, lbuf, 3209 psize, lsize) == 0 && 3210 zio_decompress_data(c, pbuf2, lbuf2, 3211 psize, lsize) == 0 && 3212 bcmp(lbuf, lbuf2, lsize) == 0) 3213 break; 3214 } 3215 if (c != ZIO_COMPRESS_FUNCTIONS) 3216 break; 3217 lsize -= SPA_MINBLOCKSIZE; 3218 } 3219 3220 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3221 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3222 3223 if (lsize <= psize) { 3224 (void) printf("Decompress of %s failed\n", thing); 3225 goto out; 3226 } 3227 buf = lbuf; 3228 size = lsize; 3229 } else { 3230 buf = pbuf; 3231 size = psize; 3232 } 3233 3234 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3235 zdb_print_blkptr((blkptr_t *)(void *) 3236 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3237 else if (flags & ZDB_FLAG_RAW) 3238 zdb_dump_block_raw(buf, size, flags); 3239 else if (flags & ZDB_FLAG_INDIRECT) 3240 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3241 flags); 3242 else if (flags & ZDB_FLAG_GBH) 3243 zdb_dump_gbh(buf, flags); 3244 else 3245 zdb_dump_block(thing, buf, size, flags); 3246 3247out: 3248 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3249 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3250 free(dup); 3251} 3252 3253static boolean_t 3254pool_match(nvlist_t *cfg, char *tgt) 3255{ 3256 uint64_t v, guid = strtoull(tgt, NULL, 0); 3257 char *s; 3258 3259 if (guid != 0) { 3260 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3261 return (v == guid); 3262 } else { 3263 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3264 return (strcmp(s, tgt) == 0); 3265 } 3266 return (B_FALSE); 3267} 3268 3269static char * 3270find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3271{ 3272 nvlist_t *pools; 3273 nvlist_t *match = NULL; 3274 char *name = NULL; 3275 char *sepp = NULL; 3276 char sep; 3277 int count = 0; 3278 importargs_t args = { 0 }; 3279 3280 args.paths = dirc; 3281 args.path = dirv; 3282 args.can_be_active = B_TRUE; 3283 3284 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3285 sep = *sepp; 3286 *sepp = '\0'; 3287 } 3288 3289 pools = zpool_search_import(g_zfs, &args); 3290 3291 if (pools != NULL) { 3292 nvpair_t *elem = NULL; 3293 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3294 verify(nvpair_value_nvlist(elem, configp) == 0); 3295 if (pool_match(*configp, *target)) { 3296 count++; 3297 if (match != NULL) { 3298 /* print previously found config */ 3299 if (name != NULL) { 3300 (void) printf("%s\n", name); 3301 dump_nvlist(match, 8); 3302 name = NULL; 3303 } 3304 (void) printf("%s\n", 3305 nvpair_name(elem)); 3306 dump_nvlist(*configp, 8); 3307 } else { 3308 match = *configp; 3309 name = nvpair_name(elem); 3310 } 3311 } 3312 } 3313 } 3314 if (count > 1) 3315 (void) fatal("\tMatched %d pools - use pool GUID " 3316 "instead of pool name or \n" 3317 "\tpool name part of a dataset name to select pool", count); 3318 3319 if (sepp) 3320 *sepp = sep; 3321 /* 3322 * If pool GUID was specified for pool id, replace it with pool name 3323 */ 3324 if (name && (strstr(*target, name) != *target)) { 3325 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3326 3327 *target = umem_alloc(sz, UMEM_NOFAIL); 3328 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3329 } 3330 3331 *configp = name ? match : NULL; 3332 3333 return (name); 3334} 3335 3336int 3337main(int argc, char **argv) 3338{ 3339 int i, c; 3340 struct rlimit rl = { 1024, 1024 }; 3341 spa_t *spa = NULL; 3342 objset_t *os = NULL; 3343 int dump_all = 1; 3344 int verbose = 0; 3345 int error = 0; 3346 char **searchdirs = NULL; 3347 int nsearch = 0; 3348 char *target; 3349 nvlist_t *policy = NULL; 3350 uint64_t max_txg = UINT64_MAX; 3351 int rewind = ZPOOL_NEVER_REWIND; 3352 3353 (void) setrlimit(RLIMIT_NOFILE, &rl); 3354 (void) enable_extended_FILE_stdio(-1, -1); 3355 3356 dprintf_setup(&argc, argv); 3357 3358 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3359 switch (c) { 3360 case 'b': 3361 case 'c': 3362 case 'd': 3363 case 'h': 3364 case 'i': 3365 case 'l': 3366 case 'm': 3367 case 's': 3368 case 'u': 3369 case 'C': 3370 case 'D': 3371 case 'R': 3372 case 'S': 3373 dump_opt[c]++; 3374 dump_all = 0; 3375 break; 3376 case 'A': 3377 case 'F': 3378 case 'L': 3379 case 'X': 3380 case 'e': 3381 case 'P': 3382 dump_opt[c]++; 3383 break; 3384 case 'v': 3385 verbose++; 3386 break; 3387 case 'M': 3388 max_inflight = strtoull(optarg, NULL, 0); 3389 if (max_inflight == 0) { 3390 (void) fprintf(stderr, "maximum number " 3391 "of inflight I/Os must be greater " 3392 "than 0\n"); 3393 usage(); 3394 } 3395 break; 3396 case 'p': 3397 if (searchdirs == NULL) { 3398 searchdirs = umem_alloc(sizeof (char *), 3399 UMEM_NOFAIL); 3400 } else { 3401 char **tmp = umem_alloc((nsearch + 1) * 3402 sizeof (char *), UMEM_NOFAIL); 3403 bcopy(searchdirs, tmp, nsearch * 3404 sizeof (char *)); 3405 umem_free(searchdirs, 3406 nsearch * sizeof (char *)); 3407 searchdirs = tmp; 3408 } 3409 searchdirs[nsearch++] = optarg; 3410 break; 3411 case 't': 3412 max_txg = strtoull(optarg, NULL, 0); 3413 if (max_txg < TXG_INITIAL) { 3414 (void) fprintf(stderr, "incorrect txg " 3415 "specified: %s\n", optarg); 3416 usage(); 3417 } 3418 break; 3419 case 'U': 3420 spa_config_path = optarg; 3421 break; 3422 default: 3423 usage(); 3424 break; 3425 } 3426 } 3427 3428 if (!dump_opt['e'] && searchdirs != NULL) { 3429 (void) fprintf(stderr, "-p option requires use of -e\n"); 3430 usage(); 3431 } 3432 3433 kernel_init(FREAD); 3434 g_zfs = libzfs_init(); 3435 ASSERT(g_zfs != NULL); 3436 3437 if (dump_all) 3438 verbose = MAX(verbose, 1); 3439 3440 for (c = 0; c < 256; c++) { 3441 if (dump_all && !strchr("elAFLRSXP", c)) 3442 dump_opt[c] = 1; 3443 if (dump_opt[c]) 3444 dump_opt[c] += verbose; 3445 } 3446 3447 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3448 zfs_recover = (dump_opt['A'] > 1); 3449 3450 argc -= optind; 3451 argv += optind; 3452 3453 if (argc < 2 && dump_opt['R']) 3454 usage(); 3455 if (argc < 1) { 3456 if (!dump_opt['e'] && dump_opt['C']) { 3457 dump_cachefile(spa_config_path); 3458 return (0); 3459 } 3460 usage(); 3461 } 3462 3463 if (dump_opt['l']) { 3464 dump_label(argv[0]); 3465 return (0); 3466 } 3467 3468 if (dump_opt['X'] || dump_opt['F']) 3469 rewind = ZPOOL_DO_REWIND | 3470 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3471 3472 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3473 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3474 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3475 fatal("internal error: %s", strerror(ENOMEM)); 3476 3477 error = 0; 3478 target = argv[0]; 3479 3480 if (dump_opt['e']) { 3481 nvlist_t *cfg = NULL; 3482 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3483 3484 error = ENOENT; 3485 if (name) { 3486 if (dump_opt['C'] > 1) { 3487 (void) printf("\nConfiguration for import:\n"); 3488 dump_nvlist(cfg, 8); 3489 } 3490 if (nvlist_add_nvlist(cfg, 3491 ZPOOL_REWIND_POLICY, policy) != 0) { 3492 fatal("can't open '%s': %s", 3493 target, strerror(ENOMEM)); 3494 } 3495 if ((error = spa_import(name, cfg, NULL, 3496 ZFS_IMPORT_MISSING_LOG)) != 0) { 3497 error = spa_import(name, cfg, NULL, 3498 ZFS_IMPORT_VERBATIM); 3499 } 3500 } 3501 } 3502 3503 if (error == 0) { 3504 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3505 error = spa_open_rewind(target, &spa, FTAG, policy, 3506 NULL); 3507 if (error) { 3508 /* 3509 * If we're missing the log device then 3510 * try opening the pool after clearing the 3511 * log state. 3512 */ 3513 mutex_enter(&spa_namespace_lock); 3514 if ((spa = spa_lookup(target)) != NULL && 3515 spa->spa_log_state == SPA_LOG_MISSING) { 3516 spa->spa_log_state = SPA_LOG_CLEAR; 3517 error = 0; 3518 } 3519 mutex_exit(&spa_namespace_lock); 3520 3521 if (!error) { 3522 error = spa_open_rewind(target, &spa, 3523 FTAG, policy, NULL); 3524 } 3525 } 3526 } else { 3527 error = dmu_objset_own(target, DMU_OST_ANY, 3528 B_TRUE, FTAG, &os); 3529 } 3530 } 3531 nvlist_free(policy); 3532 3533 if (error) 3534 fatal("can't open '%s': %s", target, strerror(error)); 3535 3536 argv++; 3537 argc--; 3538 if (!dump_opt['R']) { 3539 if (argc > 0) { 3540 zopt_objects = argc; 3541 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3542 for (i = 0; i < zopt_objects; i++) { 3543 errno = 0; 3544 zopt_object[i] = strtoull(argv[i], NULL, 0); 3545 if (zopt_object[i] == 0 && errno != 0) 3546 fatal("bad number %s: %s", 3547 argv[i], strerror(errno)); 3548 } 3549 } 3550 if (os != NULL) { 3551 dump_dir(os); 3552 } else if (zopt_objects > 0 && !dump_opt['m']) { 3553 dump_dir(spa->spa_meta_objset); 3554 } else { 3555 dump_zpool(spa); 3556 } 3557 } else { 3558 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3559 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3560 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3561 flagbits['e'] = ZDB_FLAG_BSWAP; 3562 flagbits['g'] = ZDB_FLAG_GBH; 3563 flagbits['i'] = ZDB_FLAG_INDIRECT; 3564 flagbits['p'] = ZDB_FLAG_PHYS; 3565 flagbits['r'] = ZDB_FLAG_RAW; 3566 3567 for (i = 0; i < argc; i++) 3568 zdb_read_block(argv[i], spa); 3569 } 3570 3571 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3572 3573 fuid_table_destroy(); 3574 sa_loaded = B_FALSE; 3575 3576 libzfs_fini(g_zfs); 3577 kernel_fini(); 3578 3579 return (0); 3580} 3581