zdb.c revision 263393
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) 2013 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 int zfs_recover; 79#else 80int 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 sprintf_blkptr(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 932static void 933dump_history(spa_t *spa) 934{ 935 nvlist_t **events = NULL; 936 char buf[SPA_MAXBLOCKSIZE]; 937 uint64_t resid, len, off = 0; 938 uint_t num = 0; 939 int error; 940 time_t tsec; 941 struct tm t; 942 char tbuf[30]; 943 char internalstr[MAXPATHLEN]; 944 945 do { 946 len = sizeof (buf); 947 948 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 949 (void) fprintf(stderr, "Unable to read history: " 950 "error %d\n", error); 951 return; 952 } 953 954 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 955 break; 956 957 off -= resid; 958 } while (len != 0); 959 960 (void) printf("\nHistory:\n"); 961 for (int i = 0; i < num; i++) { 962 uint64_t time, txg, ievent; 963 char *cmd, *intstr; 964 boolean_t printed = B_FALSE; 965 966 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 967 &time) != 0) 968 goto next; 969 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 970 &cmd) != 0) { 971 if (nvlist_lookup_uint64(events[i], 972 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 973 goto next; 974 verify(nvlist_lookup_uint64(events[i], 975 ZPOOL_HIST_TXG, &txg) == 0); 976 verify(nvlist_lookup_string(events[i], 977 ZPOOL_HIST_INT_STR, &intstr) == 0); 978 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 979 goto next; 980 981 (void) snprintf(internalstr, 982 sizeof (internalstr), 983 "[internal %s txg:%lld] %s", 984 zfs_history_event_names[ievent], txg, 985 intstr); 986 cmd = internalstr; 987 } 988 tsec = time; 989 (void) localtime_r(&tsec, &t); 990 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 991 (void) printf("%s %s\n", tbuf, cmd); 992 printed = B_TRUE; 993 994next: 995 if (dump_opt['h'] > 1) { 996 if (!printed) 997 (void) printf("unrecognized record:\n"); 998 dump_nvlist(events[i], 2); 999 } 1000 } 1001} 1002 1003/*ARGSUSED*/ 1004static void 1005dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1006{ 1007} 1008 1009static uint64_t 1010blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1011{ 1012 if (dnp == NULL) { 1013 ASSERT(zb->zb_level < 0); 1014 if (zb->zb_object == 0) 1015 return (zb->zb_blkid); 1016 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1017 } 1018 1019 ASSERT(zb->zb_level >= 0); 1020 1021 return ((zb->zb_blkid << 1022 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1023 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1024} 1025 1026static void 1027sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp) 1028{ 1029 const dva_t *dva = bp->blk_dva; 1030 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1031 1032 if (dump_opt['b'] >= 6) { 1033 sprintf_blkptr(blkbuf, bp); 1034 return; 1035 } 1036 1037 blkbuf[0] = '\0'; 1038 1039 for (int i = 0; i < ndvas; i++) 1040 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 1041 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1042 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1043 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1044 1045 (void) sprintf(blkbuf + strlen(blkbuf), 1046 "%llxL/%llxP F=%llu B=%llu/%llu", 1047 (u_longlong_t)BP_GET_LSIZE(bp), 1048 (u_longlong_t)BP_GET_PSIZE(bp), 1049 (u_longlong_t)bp->blk_fill, 1050 (u_longlong_t)bp->blk_birth, 1051 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1052} 1053 1054static void 1055print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1056 const dnode_phys_t *dnp) 1057{ 1058 char blkbuf[BP_SPRINTF_LEN]; 1059 int l; 1060 1061 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1062 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1063 1064 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1065 1066 ASSERT(zb->zb_level >= 0); 1067 1068 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1069 if (l == zb->zb_level) { 1070 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1071 } else { 1072 (void) printf(" "); 1073 } 1074 } 1075 1076 sprintf_blkptr_compact(blkbuf, bp); 1077 (void) printf("%s\n", blkbuf); 1078} 1079 1080static int 1081visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1082 blkptr_t *bp, const zbookmark_t *zb) 1083{ 1084 int err = 0; 1085 1086 if (bp->blk_birth == 0) 1087 return (0); 1088 1089 print_indirect(bp, zb, dnp); 1090 1091 if (BP_GET_LEVEL(bp) > 0) { 1092 uint32_t flags = ARC_WAIT; 1093 int i; 1094 blkptr_t *cbp; 1095 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1096 arc_buf_t *buf; 1097 uint64_t fill = 0; 1098 1099 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1100 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1101 if (err) 1102 return (err); 1103 ASSERT(buf->b_data); 1104 1105 /* recursively visit blocks below this */ 1106 cbp = buf->b_data; 1107 for (i = 0; i < epb; i++, cbp++) { 1108 zbookmark_t czb; 1109 1110 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1111 zb->zb_level - 1, 1112 zb->zb_blkid * epb + i); 1113 err = visit_indirect(spa, dnp, cbp, &czb); 1114 if (err) 1115 break; 1116 fill += cbp->blk_fill; 1117 } 1118 if (!err) 1119 ASSERT3U(fill, ==, bp->blk_fill); 1120 (void) arc_buf_remove_ref(buf, &buf); 1121 } 1122 1123 return (err); 1124} 1125 1126/*ARGSUSED*/ 1127static void 1128dump_indirect(dnode_t *dn) 1129{ 1130 dnode_phys_t *dnp = dn->dn_phys; 1131 int j; 1132 zbookmark_t czb; 1133 1134 (void) printf("Indirect blocks:\n"); 1135 1136 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1137 dn->dn_object, dnp->dn_nlevels - 1, 0); 1138 for (j = 0; j < dnp->dn_nblkptr; j++) { 1139 czb.zb_blkid = j; 1140 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1141 &dnp->dn_blkptr[j], &czb); 1142 } 1143 1144 (void) printf("\n"); 1145} 1146 1147/*ARGSUSED*/ 1148static void 1149dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1150{ 1151 dsl_dir_phys_t *dd = data; 1152 time_t crtime; 1153 char nice[32]; 1154 1155 if (dd == NULL) 1156 return; 1157 1158 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1159 1160 crtime = dd->dd_creation_time; 1161 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1162 (void) printf("\t\thead_dataset_obj = %llu\n", 1163 (u_longlong_t)dd->dd_head_dataset_obj); 1164 (void) printf("\t\tparent_dir_obj = %llu\n", 1165 (u_longlong_t)dd->dd_parent_obj); 1166 (void) printf("\t\torigin_obj = %llu\n", 1167 (u_longlong_t)dd->dd_origin_obj); 1168 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1169 (u_longlong_t)dd->dd_child_dir_zapobj); 1170 zdb_nicenum(dd->dd_used_bytes, nice); 1171 (void) printf("\t\tused_bytes = %s\n", nice); 1172 zdb_nicenum(dd->dd_compressed_bytes, nice); 1173 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1174 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1175 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1176 zdb_nicenum(dd->dd_quota, nice); 1177 (void) printf("\t\tquota = %s\n", nice); 1178 zdb_nicenum(dd->dd_reserved, nice); 1179 (void) printf("\t\treserved = %s\n", nice); 1180 (void) printf("\t\tprops_zapobj = %llu\n", 1181 (u_longlong_t)dd->dd_props_zapobj); 1182 (void) printf("\t\tdeleg_zapobj = %llu\n", 1183 (u_longlong_t)dd->dd_deleg_zapobj); 1184 (void) printf("\t\tflags = %llx\n", 1185 (u_longlong_t)dd->dd_flags); 1186 1187#define DO(which) \ 1188 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1189 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1190 DO(HEAD); 1191 DO(SNAP); 1192 DO(CHILD); 1193 DO(CHILD_RSRV); 1194 DO(REFRSRV); 1195#undef DO 1196} 1197 1198/*ARGSUSED*/ 1199static void 1200dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1201{ 1202 dsl_dataset_phys_t *ds = data; 1203 time_t crtime; 1204 char used[32], compressed[32], uncompressed[32], unique[32]; 1205 char blkbuf[BP_SPRINTF_LEN]; 1206 1207 if (ds == NULL) 1208 return; 1209 1210 ASSERT(size == sizeof (*ds)); 1211 crtime = ds->ds_creation_time; 1212 zdb_nicenum(ds->ds_referenced_bytes, used); 1213 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1214 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1215 zdb_nicenum(ds->ds_unique_bytes, unique); 1216 sprintf_blkptr(blkbuf, &ds->ds_bp); 1217 1218 (void) printf("\t\tdir_obj = %llu\n", 1219 (u_longlong_t)ds->ds_dir_obj); 1220 (void) printf("\t\tprev_snap_obj = %llu\n", 1221 (u_longlong_t)ds->ds_prev_snap_obj); 1222 (void) printf("\t\tprev_snap_txg = %llu\n", 1223 (u_longlong_t)ds->ds_prev_snap_txg); 1224 (void) printf("\t\tnext_snap_obj = %llu\n", 1225 (u_longlong_t)ds->ds_next_snap_obj); 1226 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1227 (u_longlong_t)ds->ds_snapnames_zapobj); 1228 (void) printf("\t\tnum_children = %llu\n", 1229 (u_longlong_t)ds->ds_num_children); 1230 (void) printf("\t\tuserrefs_obj = %llu\n", 1231 (u_longlong_t)ds->ds_userrefs_obj); 1232 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1233 (void) printf("\t\tcreation_txg = %llu\n", 1234 (u_longlong_t)ds->ds_creation_txg); 1235 (void) printf("\t\tdeadlist_obj = %llu\n", 1236 (u_longlong_t)ds->ds_deadlist_obj); 1237 (void) printf("\t\tused_bytes = %s\n", used); 1238 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1239 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1240 (void) printf("\t\tunique = %s\n", unique); 1241 (void) printf("\t\tfsid_guid = %llu\n", 1242 (u_longlong_t)ds->ds_fsid_guid); 1243 (void) printf("\t\tguid = %llu\n", 1244 (u_longlong_t)ds->ds_guid); 1245 (void) printf("\t\tflags = %llx\n", 1246 (u_longlong_t)ds->ds_flags); 1247 (void) printf("\t\tnext_clones_obj = %llu\n", 1248 (u_longlong_t)ds->ds_next_clones_obj); 1249 (void) printf("\t\tprops_obj = %llu\n", 1250 (u_longlong_t)ds->ds_props_obj); 1251 (void) printf("\t\tbp = %s\n", blkbuf); 1252} 1253 1254/* ARGSUSED */ 1255static int 1256dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1257{ 1258 char blkbuf[BP_SPRINTF_LEN]; 1259 1260 if (bp->blk_birth != 0) { 1261 sprintf_blkptr(blkbuf, bp); 1262 (void) printf("\t%s\n", blkbuf); 1263 } 1264 return (0); 1265} 1266 1267static void 1268dump_bptree(objset_t *os, uint64_t obj, char *name) 1269{ 1270 char bytes[32]; 1271 bptree_phys_t *bt; 1272 dmu_buf_t *db; 1273 1274 if (dump_opt['d'] < 3) 1275 return; 1276 1277 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1278 bt = db->db_data; 1279 zdb_nicenum(bt->bt_bytes, bytes); 1280 (void) printf("\n %s: %llu datasets, %s\n", 1281 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1282 dmu_buf_rele(db, FTAG); 1283 1284 if (dump_opt['d'] < 5) 1285 return; 1286 1287 (void) printf("\n"); 1288 1289 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1290} 1291 1292/* ARGSUSED */ 1293static int 1294dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1295{ 1296 char blkbuf[BP_SPRINTF_LEN]; 1297 1298 ASSERT(bp->blk_birth != 0); 1299 sprintf_blkptr_compact(blkbuf, bp); 1300 (void) printf("\t%s\n", blkbuf); 1301 return (0); 1302} 1303 1304static void 1305dump_bpobj(bpobj_t *bpo, char *name, int indent) 1306{ 1307 char bytes[32]; 1308 char comp[32]; 1309 char uncomp[32]; 1310 1311 if (dump_opt['d'] < 3) 1312 return; 1313 1314 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1315 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1316 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1317 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1318 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1319 "%llu subobjs, %s (%s/%s comp)\n", 1320 indent * 8, name, 1321 (u_longlong_t)bpo->bpo_object, 1322 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1323 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1324 bytes, comp, uncomp); 1325 1326 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1327 uint64_t subobj; 1328 bpobj_t subbpo; 1329 int error; 1330 VERIFY0(dmu_read(bpo->bpo_os, 1331 bpo->bpo_phys->bpo_subobjs, 1332 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1333 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1334 if (error != 0) { 1335 (void) printf("ERROR %u while trying to open " 1336 "subobj id %llu\n", 1337 error, (u_longlong_t)subobj); 1338 continue; 1339 } 1340 dump_bpobj(&subbpo, "subobj", indent + 1); 1341 bpobj_close(&subbpo); 1342 } 1343 } else { 1344 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1345 indent * 8, name, 1346 (u_longlong_t)bpo->bpo_object, 1347 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1348 bytes); 1349 } 1350 1351 if (dump_opt['d'] < 5) 1352 return; 1353 1354 1355 if (indent == 0) { 1356 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1357 (void) printf("\n"); 1358 } 1359} 1360 1361static void 1362dump_deadlist(dsl_deadlist_t *dl) 1363{ 1364 dsl_deadlist_entry_t *dle; 1365 uint64_t unused; 1366 char bytes[32]; 1367 char comp[32]; 1368 char uncomp[32]; 1369 1370 if (dump_opt['d'] < 3) 1371 return; 1372 1373 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1374 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1375 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1376 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1377 bytes, comp, uncomp); 1378 1379 if (dump_opt['d'] < 4) 1380 return; 1381 1382 (void) printf("\n"); 1383 1384 /* force the tree to be loaded */ 1385 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1386 1387 for (dle = avl_first(&dl->dl_tree); dle; 1388 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1389 if (dump_opt['d'] >= 5) { 1390 char buf[128]; 1391 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1392 (longlong_t)dle->dle_mintxg, 1393 (longlong_t)dle->dle_bpobj.bpo_object); 1394 1395 dump_bpobj(&dle->dle_bpobj, buf, 0); 1396 } else { 1397 (void) printf("mintxg %llu -> obj %llu\n", 1398 (longlong_t)dle->dle_mintxg, 1399 (longlong_t)dle->dle_bpobj.bpo_object); 1400 1401 } 1402 } 1403} 1404 1405static avl_tree_t idx_tree; 1406static avl_tree_t domain_tree; 1407static boolean_t fuid_table_loaded; 1408static boolean_t sa_loaded; 1409sa_attr_type_t *sa_attr_table; 1410 1411static void 1412fuid_table_destroy() 1413{ 1414 if (fuid_table_loaded) { 1415 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1416 fuid_table_loaded = B_FALSE; 1417 } 1418} 1419 1420/* 1421 * print uid or gid information. 1422 * For normal POSIX id just the id is printed in decimal format. 1423 * For CIFS files with FUID the fuid is printed in hex followed by 1424 * the domain-rid string. 1425 */ 1426static void 1427print_idstr(uint64_t id, const char *id_type) 1428{ 1429 if (FUID_INDEX(id)) { 1430 char *domain; 1431 1432 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1433 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1434 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1435 } else { 1436 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1437 } 1438 1439} 1440 1441static void 1442dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1443{ 1444 uint32_t uid_idx, gid_idx; 1445 1446 uid_idx = FUID_INDEX(uid); 1447 gid_idx = FUID_INDEX(gid); 1448 1449 /* Load domain table, if not already loaded */ 1450 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1451 uint64_t fuid_obj; 1452 1453 /* first find the fuid object. It lives in the master node */ 1454 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1455 8, 1, &fuid_obj) == 0); 1456 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1457 (void) zfs_fuid_table_load(os, fuid_obj, 1458 &idx_tree, &domain_tree); 1459 fuid_table_loaded = B_TRUE; 1460 } 1461 1462 print_idstr(uid, "uid"); 1463 print_idstr(gid, "gid"); 1464} 1465 1466/*ARGSUSED*/ 1467static void 1468dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1469{ 1470 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1471 sa_handle_t *hdl; 1472 uint64_t xattr, rdev, gen; 1473 uint64_t uid, gid, mode, fsize, parent, links; 1474 uint64_t pflags; 1475 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1476 time_t z_crtime, z_atime, z_mtime, z_ctime; 1477 sa_bulk_attr_t bulk[12]; 1478 int idx = 0; 1479 int error; 1480 1481 if (!sa_loaded) { 1482 uint64_t sa_attrs = 0; 1483 uint64_t version; 1484 1485 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1486 8, 1, &version) == 0); 1487 if (version >= ZPL_VERSION_SA) { 1488 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1489 8, 1, &sa_attrs) == 0); 1490 } 1491 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1492 ZPL_END, &sa_attr_table)) != 0) { 1493 (void) printf("sa_setup failed errno %d, can't " 1494 "display znode contents\n", error); 1495 return; 1496 } 1497 sa_loaded = B_TRUE; 1498 } 1499 1500 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1501 (void) printf("Failed to get handle for SA znode\n"); 1502 return; 1503 } 1504 1505 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1506 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1507 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1508 &links, 8); 1509 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1510 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1511 &mode, 8); 1512 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1513 NULL, &parent, 8); 1514 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1515 &fsize, 8); 1516 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1517 acctm, 16); 1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1519 modtm, 16); 1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1521 crtm, 16); 1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1523 chgtm, 16); 1524 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1525 &pflags, 8); 1526 1527 if (sa_bulk_lookup(hdl, bulk, idx)) { 1528 (void) sa_handle_destroy(hdl); 1529 return; 1530 } 1531 1532 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1533 if (error != 0) { 1534 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1535 (u_longlong_t)object); 1536 } 1537 if (dump_opt['d'] < 3) { 1538 (void) printf("\t%s\n", path); 1539 (void) sa_handle_destroy(hdl); 1540 return; 1541 } 1542 1543 z_crtime = (time_t)crtm[0]; 1544 z_atime = (time_t)acctm[0]; 1545 z_mtime = (time_t)modtm[0]; 1546 z_ctime = (time_t)chgtm[0]; 1547 1548 (void) printf("\tpath %s\n", path); 1549 dump_uidgid(os, uid, gid); 1550 (void) printf("\tatime %s", ctime(&z_atime)); 1551 (void) printf("\tmtime %s", ctime(&z_mtime)); 1552 (void) printf("\tctime %s", ctime(&z_ctime)); 1553 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1554 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1555 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1556 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1557 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1558 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1559 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1560 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1561 sizeof (uint64_t)) == 0) 1562 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1563 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1564 sizeof (uint64_t)) == 0) 1565 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1566 sa_handle_destroy(hdl); 1567} 1568 1569/*ARGSUSED*/ 1570static void 1571dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1572{ 1573} 1574 1575/*ARGSUSED*/ 1576static void 1577dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1578{ 1579} 1580 1581static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1582 dump_none, /* unallocated */ 1583 dump_zap, /* object directory */ 1584 dump_uint64, /* object array */ 1585 dump_none, /* packed nvlist */ 1586 dump_packed_nvlist, /* packed nvlist size */ 1587 dump_none, /* bplist */ 1588 dump_none, /* bplist header */ 1589 dump_none, /* SPA space map header */ 1590 dump_none, /* SPA space map */ 1591 dump_none, /* ZIL intent log */ 1592 dump_dnode, /* DMU dnode */ 1593 dump_dmu_objset, /* DMU objset */ 1594 dump_dsl_dir, /* DSL directory */ 1595 dump_zap, /* DSL directory child map */ 1596 dump_zap, /* DSL dataset snap map */ 1597 dump_zap, /* DSL props */ 1598 dump_dsl_dataset, /* DSL dataset */ 1599 dump_znode, /* ZFS znode */ 1600 dump_acl, /* ZFS V0 ACL */ 1601 dump_uint8, /* ZFS plain file */ 1602 dump_zpldir, /* ZFS directory */ 1603 dump_zap, /* ZFS master node */ 1604 dump_zap, /* ZFS delete queue */ 1605 dump_uint8, /* zvol object */ 1606 dump_zap, /* zvol prop */ 1607 dump_uint8, /* other uint8[] */ 1608 dump_uint64, /* other uint64[] */ 1609 dump_zap, /* other ZAP */ 1610 dump_zap, /* persistent error log */ 1611 dump_uint8, /* SPA history */ 1612 dump_history_offsets, /* SPA history offsets */ 1613 dump_zap, /* Pool properties */ 1614 dump_zap, /* DSL permissions */ 1615 dump_acl, /* ZFS ACL */ 1616 dump_uint8, /* ZFS SYSACL */ 1617 dump_none, /* FUID nvlist */ 1618 dump_packed_nvlist, /* FUID nvlist size */ 1619 dump_zap, /* DSL dataset next clones */ 1620 dump_zap, /* DSL scrub queue */ 1621 dump_zap, /* ZFS user/group used */ 1622 dump_zap, /* ZFS user/group quota */ 1623 dump_zap, /* snapshot refcount tags */ 1624 dump_ddt_zap, /* DDT ZAP object */ 1625 dump_zap, /* DDT statistics */ 1626 dump_znode, /* SA object */ 1627 dump_zap, /* SA Master Node */ 1628 dump_sa_attrs, /* SA attribute registration */ 1629 dump_sa_layouts, /* SA attribute layouts */ 1630 dump_zap, /* DSL scrub translations */ 1631 dump_none, /* fake dedup BP */ 1632 dump_zap, /* deadlist */ 1633 dump_none, /* deadlist hdr */ 1634 dump_zap, /* dsl clones */ 1635 dump_none, /* bpobj subobjs */ 1636 dump_unknown, /* Unknown type, must be last */ 1637}; 1638 1639static void 1640dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1641{ 1642 dmu_buf_t *db = NULL; 1643 dmu_object_info_t doi; 1644 dnode_t *dn; 1645 void *bonus = NULL; 1646 size_t bsize = 0; 1647 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1648 char bonus_size[32]; 1649 char aux[50]; 1650 int error; 1651 1652 if (*print_header) { 1653 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1654 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1655 "%full", "type"); 1656 *print_header = 0; 1657 } 1658 1659 if (object == 0) { 1660 dn = DMU_META_DNODE(os); 1661 } else { 1662 error = dmu_bonus_hold(os, object, FTAG, &db); 1663 if (error) 1664 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1665 object, error); 1666 bonus = db->db_data; 1667 bsize = db->db_size; 1668 dn = DB_DNODE((dmu_buf_impl_t *)db); 1669 } 1670 dmu_object_info_from_dnode(dn, &doi); 1671 1672 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1673 zdb_nicenum(doi.doi_data_block_size, dblk); 1674 zdb_nicenum(doi.doi_max_offset, lsize); 1675 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1676 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1677 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1678 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1679 doi.doi_max_offset); 1680 1681 aux[0] = '\0'; 1682 1683 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1684 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1685 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1686 } 1687 1688 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1689 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1690 ZDB_COMPRESS_NAME(doi.doi_compress)); 1691 } 1692 1693 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1694 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1695 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1696 1697 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1698 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1699 "", "", "", "", "", bonus_size, "bonus", 1700 ZDB_OT_NAME(doi.doi_bonus_type)); 1701 } 1702 1703 if (verbosity >= 4) { 1704 (void) printf("\tdnode flags: %s%s%s\n", 1705 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1706 "USED_BYTES " : "", 1707 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1708 "USERUSED_ACCOUNTED " : "", 1709 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1710 "SPILL_BLKPTR" : ""); 1711 (void) printf("\tdnode maxblkid: %llu\n", 1712 (longlong_t)dn->dn_phys->dn_maxblkid); 1713 1714 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1715 bonus, bsize); 1716 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1717 *print_header = 1; 1718 } 1719 1720 if (verbosity >= 5) 1721 dump_indirect(dn); 1722 1723 if (verbosity >= 5) { 1724 /* 1725 * Report the list of segments that comprise the object. 1726 */ 1727 uint64_t start = 0; 1728 uint64_t end; 1729 uint64_t blkfill = 1; 1730 int minlvl = 1; 1731 1732 if (dn->dn_type == DMU_OT_DNODE) { 1733 minlvl = 0; 1734 blkfill = DNODES_PER_BLOCK; 1735 } 1736 1737 for (;;) { 1738 char segsize[32]; 1739 error = dnode_next_offset(dn, 1740 0, &start, minlvl, blkfill, 0); 1741 if (error) 1742 break; 1743 end = start; 1744 error = dnode_next_offset(dn, 1745 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1746 zdb_nicenum(end - start, segsize); 1747 (void) printf("\t\tsegment [%016llx, %016llx)" 1748 " size %5s\n", (u_longlong_t)start, 1749 (u_longlong_t)end, segsize); 1750 if (error) 1751 break; 1752 start = end; 1753 } 1754 } 1755 1756 if (db != NULL) 1757 dmu_buf_rele(db, FTAG); 1758} 1759 1760static char *objset_types[DMU_OST_NUMTYPES] = { 1761 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1762 1763static void 1764dump_dir(objset_t *os) 1765{ 1766 dmu_objset_stats_t dds; 1767 uint64_t object, object_count; 1768 uint64_t refdbytes, usedobjs, scratch; 1769 char numbuf[32]; 1770 char blkbuf[BP_SPRINTF_LEN + 20]; 1771 char osname[MAXNAMELEN]; 1772 char *type = "UNKNOWN"; 1773 int verbosity = dump_opt['d']; 1774 int print_header = 1; 1775 int i, error; 1776 1777 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1778 dmu_objset_fast_stat(os, &dds); 1779 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1780 1781 if (dds.dds_type < DMU_OST_NUMTYPES) 1782 type = objset_types[dds.dds_type]; 1783 1784 if (dds.dds_type == DMU_OST_META) { 1785 dds.dds_creation_txg = TXG_INITIAL; 1786 usedobjs = os->os_rootbp->blk_fill; 1787 refdbytes = os->os_spa->spa_dsl_pool-> 1788 dp_mos_dir->dd_phys->dd_used_bytes; 1789 } else { 1790 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1791 } 1792 1793 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1794 1795 zdb_nicenum(refdbytes, numbuf); 1796 1797 if (verbosity >= 4) { 1798 (void) sprintf(blkbuf, ", rootbp "); 1799 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1800 } else { 1801 blkbuf[0] = '\0'; 1802 } 1803 1804 dmu_objset_name(os, osname); 1805 1806 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1807 "%s, %llu objects%s\n", 1808 osname, type, (u_longlong_t)dmu_objset_id(os), 1809 (u_longlong_t)dds.dds_creation_txg, 1810 numbuf, (u_longlong_t)usedobjs, blkbuf); 1811 1812 if (zopt_objects != 0) { 1813 for (i = 0; i < zopt_objects; i++) 1814 dump_object(os, zopt_object[i], verbosity, 1815 &print_header); 1816 (void) printf("\n"); 1817 return; 1818 } 1819 1820 if (dump_opt['i'] != 0 || verbosity >= 2) 1821 dump_intent_log(dmu_objset_zil(os)); 1822 1823 if (dmu_objset_ds(os) != NULL) 1824 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1825 1826 if (verbosity < 2) 1827 return; 1828 1829 if (os->os_rootbp->blk_birth == 0) 1830 return; 1831 1832 dump_object(os, 0, verbosity, &print_header); 1833 object_count = 0; 1834 if (DMU_USERUSED_DNODE(os) != NULL && 1835 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1836 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1837 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1838 } 1839 1840 object = 0; 1841 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1842 dump_object(os, object, verbosity, &print_header); 1843 object_count++; 1844 } 1845 1846 ASSERT3U(object_count, ==, usedobjs); 1847 1848 (void) printf("\n"); 1849 1850 if (error != ESRCH) { 1851 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1852 abort(); 1853 } 1854} 1855 1856static void 1857dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1858{ 1859 time_t timestamp = ub->ub_timestamp; 1860 1861 (void) printf(header ? header : ""); 1862 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1863 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1864 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1865 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1866 (void) printf("\ttimestamp = %llu UTC = %s", 1867 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1868 if (dump_opt['u'] >= 3) { 1869 char blkbuf[BP_SPRINTF_LEN]; 1870 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1871 (void) printf("\trootbp = %s\n", blkbuf); 1872 } 1873 (void) printf(footer ? footer : ""); 1874} 1875 1876static void 1877dump_config(spa_t *spa) 1878{ 1879 dmu_buf_t *db; 1880 size_t nvsize = 0; 1881 int error = 0; 1882 1883 1884 error = dmu_bonus_hold(spa->spa_meta_objset, 1885 spa->spa_config_object, FTAG, &db); 1886 1887 if (error == 0) { 1888 nvsize = *(uint64_t *)db->db_data; 1889 dmu_buf_rele(db, FTAG); 1890 1891 (void) printf("\nMOS Configuration:\n"); 1892 dump_packed_nvlist(spa->spa_meta_objset, 1893 spa->spa_config_object, (void *)&nvsize, 1); 1894 } else { 1895 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1896 (u_longlong_t)spa->spa_config_object, error); 1897 } 1898} 1899 1900static void 1901dump_cachefile(const char *cachefile) 1902{ 1903 int fd; 1904 struct stat64 statbuf; 1905 char *buf; 1906 nvlist_t *config; 1907 1908 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1909 (void) printf("cannot open '%s': %s\n", cachefile, 1910 strerror(errno)); 1911 exit(1); 1912 } 1913 1914 if (fstat64(fd, &statbuf) != 0) { 1915 (void) printf("failed to stat '%s': %s\n", cachefile, 1916 strerror(errno)); 1917 exit(1); 1918 } 1919 1920 if ((buf = malloc(statbuf.st_size)) == NULL) { 1921 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1922 (u_longlong_t)statbuf.st_size); 1923 exit(1); 1924 } 1925 1926 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1927 (void) fprintf(stderr, "failed to read %llu bytes\n", 1928 (u_longlong_t)statbuf.st_size); 1929 exit(1); 1930 } 1931 1932 (void) close(fd); 1933 1934 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1935 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1936 exit(1); 1937 } 1938 1939 free(buf); 1940 1941 dump_nvlist(config, 0); 1942 1943 nvlist_free(config); 1944} 1945 1946#define ZDB_MAX_UB_HEADER_SIZE 32 1947 1948static void 1949dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1950{ 1951 vdev_t vd; 1952 vdev_t *vdp = &vd; 1953 char header[ZDB_MAX_UB_HEADER_SIZE]; 1954 1955 vd.vdev_ashift = ashift; 1956 vdp->vdev_top = vdp; 1957 1958 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1959 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1960 uberblock_t *ub = (void *)((char *)lbl + uoff); 1961 1962 if (uberblock_verify(ub)) 1963 continue; 1964 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1965 "Uberblock[%d]\n", i); 1966 dump_uberblock(ub, header, ""); 1967 } 1968} 1969 1970static void 1971dump_label(const char *dev) 1972{ 1973 int fd; 1974 vdev_label_t label; 1975 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1976 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1977 struct stat64 statbuf; 1978 uint64_t psize, ashift; 1979 int len = strlen(dev) + 1; 1980 1981 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1982 len++; 1983 path = malloc(len); 1984 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1985 } else { 1986 path = strdup(dev); 1987 } 1988 1989 if ((fd = open64(path, O_RDONLY)) < 0) { 1990 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1991 free(path); 1992 exit(1); 1993 } 1994 1995 if (fstat64(fd, &statbuf) != 0) { 1996 (void) printf("failed to stat '%s': %s\n", path, 1997 strerror(errno)); 1998 free(path); 1999 (void) close(fd); 2000 exit(1); 2001 } 2002 2003 if (S_ISBLK(statbuf.st_mode)) { 2004 (void) printf("cannot use '%s': character device required\n", 2005 path); 2006 free(path); 2007 (void) close(fd); 2008 exit(1); 2009 } 2010 2011 psize = statbuf.st_size; 2012 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2013 2014 for (int l = 0; l < VDEV_LABELS; l++) { 2015 nvlist_t *config = NULL; 2016 2017 (void) printf("--------------------------------------------\n"); 2018 (void) printf("LABEL %d\n", l); 2019 (void) printf("--------------------------------------------\n"); 2020 2021 if (pread64(fd, &label, sizeof (label), 2022 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2023 (void) printf("failed to read label %d\n", l); 2024 continue; 2025 } 2026 2027 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2028 (void) printf("failed to unpack label %d\n", l); 2029 ashift = SPA_MINBLOCKSHIFT; 2030 } else { 2031 nvlist_t *vdev_tree = NULL; 2032 2033 dump_nvlist(config, 4); 2034 if ((nvlist_lookup_nvlist(config, 2035 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2036 (nvlist_lookup_uint64(vdev_tree, 2037 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2038 ashift = SPA_MINBLOCKSHIFT; 2039 nvlist_free(config); 2040 } 2041 if (dump_opt['u']) 2042 dump_label_uberblocks(&label, ashift); 2043 } 2044 2045 free(path); 2046 (void) close(fd); 2047} 2048 2049/*ARGSUSED*/ 2050static int 2051dump_one_dir(const char *dsname, void *arg) 2052{ 2053 int error; 2054 objset_t *os; 2055 2056 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2057 if (error) { 2058 (void) printf("Could not open %s, error %d\n", dsname, error); 2059 return (0); 2060 } 2061 dump_dir(os); 2062 dmu_objset_disown(os, FTAG); 2063 fuid_table_destroy(); 2064 sa_loaded = B_FALSE; 2065 return (0); 2066} 2067 2068/* 2069 * Block statistics. 2070 */ 2071#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2072typedef struct zdb_blkstats { 2073 uint64_t zb_asize; 2074 uint64_t zb_lsize; 2075 uint64_t zb_psize; 2076 uint64_t zb_count; 2077 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2078} zdb_blkstats_t; 2079 2080/* 2081 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2082 */ 2083#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2084#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2085#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2086#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2087 2088static char *zdb_ot_extname[] = { 2089 "deferred free", 2090 "dedup ditto", 2091 "other", 2092 "Total", 2093}; 2094 2095#define ZB_TOTAL DN_MAX_LEVELS 2096 2097typedef struct zdb_cb { 2098 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2099 uint64_t zcb_dedup_asize; 2100 uint64_t zcb_dedup_blocks; 2101 uint64_t zcb_start; 2102 uint64_t zcb_lastprint; 2103 uint64_t zcb_totalasize; 2104 uint64_t zcb_errors[256]; 2105 int zcb_readfails; 2106 int zcb_haderrors; 2107 spa_t *zcb_spa; 2108} zdb_cb_t; 2109 2110static void 2111zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2112 dmu_object_type_t type) 2113{ 2114 uint64_t refcnt = 0; 2115 2116 ASSERT(type < ZDB_OT_TOTAL); 2117 2118 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2119 return; 2120 2121 for (int i = 0; i < 4; i++) { 2122 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2123 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2124 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2125 2126 zb->zb_asize += BP_GET_ASIZE(bp); 2127 zb->zb_lsize += BP_GET_LSIZE(bp); 2128 zb->zb_psize += BP_GET_PSIZE(bp); 2129 zb->zb_count++; 2130 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2131 } 2132 2133 if (dump_opt['L']) 2134 return; 2135 2136 if (BP_GET_DEDUP(bp)) { 2137 ddt_t *ddt; 2138 ddt_entry_t *dde; 2139 2140 ddt = ddt_select(zcb->zcb_spa, bp); 2141 ddt_enter(ddt); 2142 dde = ddt_lookup(ddt, bp, B_FALSE); 2143 2144 if (dde == NULL) { 2145 refcnt = 0; 2146 } else { 2147 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2148 ddt_phys_decref(ddp); 2149 refcnt = ddp->ddp_refcnt; 2150 if (ddt_phys_total_refcnt(dde) == 0) 2151 ddt_remove(ddt, dde); 2152 } 2153 ddt_exit(ddt); 2154 } 2155 2156 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2157 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2158 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2159} 2160 2161/* ARGSUSED */ 2162static void 2163zdb_blkptr_done(zio_t *zio) 2164{ 2165 spa_t *spa = zio->io_spa; 2166 blkptr_t *bp = zio->io_bp; 2167 int ioerr = zio->io_error; 2168 zdb_cb_t *zcb = zio->io_private; 2169 zbookmark_t *zb = &zio->io_bookmark; 2170 2171 zio_data_buf_free(zio->io_data, zio->io_size); 2172 2173 mutex_enter(&spa->spa_scrub_lock); 2174 spa->spa_scrub_inflight--; 2175 cv_broadcast(&spa->spa_scrub_io_cv); 2176 2177 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2178 char blkbuf[BP_SPRINTF_LEN]; 2179 2180 zcb->zcb_haderrors = 1; 2181 zcb->zcb_errors[ioerr]++; 2182 2183 if (dump_opt['b'] >= 2) 2184 sprintf_blkptr(blkbuf, bp); 2185 else 2186 blkbuf[0] = '\0'; 2187 2188 (void) printf("zdb_blkptr_cb: " 2189 "Got error %d reading " 2190 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2191 ioerr, 2192 (u_longlong_t)zb->zb_objset, 2193 (u_longlong_t)zb->zb_object, 2194 (u_longlong_t)zb->zb_level, 2195 (u_longlong_t)zb->zb_blkid, 2196 blkbuf); 2197 } 2198 mutex_exit(&spa->spa_scrub_lock); 2199} 2200 2201/* ARGSUSED */ 2202static int 2203zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2204 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2205{ 2206 zdb_cb_t *zcb = arg; 2207 char blkbuf[BP_SPRINTF_LEN]; 2208 dmu_object_type_t type; 2209 boolean_t is_metadata; 2210 2211 if (bp == NULL) 2212 return (0); 2213 2214 type = BP_GET_TYPE(bp); 2215 2216 zdb_count_block(zcb, zilog, bp, 2217 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2218 2219 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2220 2221 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2222 size_t size = BP_GET_PSIZE(bp); 2223 void *data = zio_data_buf_alloc(size); 2224 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2225 2226 /* If it's an intent log block, failure is expected. */ 2227 if (zb->zb_level == ZB_ZIL_LEVEL) 2228 flags |= ZIO_FLAG_SPECULATIVE; 2229 2230 mutex_enter(&spa->spa_scrub_lock); 2231 while (spa->spa_scrub_inflight > max_inflight) 2232 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2233 spa->spa_scrub_inflight++; 2234 mutex_exit(&spa->spa_scrub_lock); 2235 2236 zio_nowait(zio_read(NULL, spa, bp, data, size, 2237 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2238 } 2239 2240 zcb->zcb_readfails = 0; 2241 2242 if (dump_opt['b'] >= 5) { 2243 sprintf_blkptr(blkbuf, bp); 2244 (void) printf("objset %llu object %llu " 2245 "level %lld offset 0x%llx %s\n", 2246 (u_longlong_t)zb->zb_objset, 2247 (u_longlong_t)zb->zb_object, 2248 (longlong_t)zb->zb_level, 2249 (u_longlong_t)blkid2offset(dnp, bp, zb), 2250 blkbuf); 2251 } 2252 2253 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2254 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2255 uint64_t now = gethrtime(); 2256 char buf[10]; 2257 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2258 int kb_per_sec = 2259 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2260 int sec_remaining = 2261 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2262 2263 zfs_nicenum(bytes, buf, sizeof (buf)); 2264 (void) fprintf(stderr, 2265 "\r%5s completed (%4dMB/s) " 2266 "estimated time remaining: %uhr %02umin %02usec ", 2267 buf, kb_per_sec / 1024, 2268 sec_remaining / 60 / 60, 2269 sec_remaining / 60 % 60, 2270 sec_remaining % 60); 2271 2272 zcb->zcb_lastprint = now; 2273 } 2274 2275 return (0); 2276} 2277 2278static void 2279zdb_leak(void *arg, uint64_t start, uint64_t size) 2280{ 2281 vdev_t *vd = arg; 2282 2283 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2284 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2285} 2286 2287static metaslab_ops_t zdb_metaslab_ops = { 2288 NULL, /* alloc */ 2289 NULL /* fragmented */ 2290}; 2291 2292static void 2293zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2294{ 2295 ddt_bookmark_t ddb = { 0 }; 2296 ddt_entry_t dde; 2297 int error; 2298 2299 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2300 blkptr_t blk; 2301 ddt_phys_t *ddp = dde.dde_phys; 2302 2303 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2304 return; 2305 2306 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2307 2308 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2309 if (ddp->ddp_phys_birth == 0) 2310 continue; 2311 ddt_bp_create(ddb.ddb_checksum, 2312 &dde.dde_key, ddp, &blk); 2313 if (p == DDT_PHYS_DITTO) { 2314 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2315 } else { 2316 zcb->zcb_dedup_asize += 2317 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2318 zcb->zcb_dedup_blocks++; 2319 } 2320 } 2321 if (!dump_opt['L']) { 2322 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2323 ddt_enter(ddt); 2324 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2325 ddt_exit(ddt); 2326 } 2327 } 2328 2329 ASSERT(error == ENOENT); 2330} 2331 2332static void 2333zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2334{ 2335 zcb->zcb_spa = spa; 2336 2337 if (!dump_opt['L']) { 2338 vdev_t *rvd = spa->spa_root_vdev; 2339 for (int c = 0; c < rvd->vdev_children; c++) { 2340 vdev_t *vd = rvd->vdev_child[c]; 2341 for (int m = 0; m < vd->vdev_ms_count; m++) { 2342 metaslab_t *msp = vd->vdev_ms[m]; 2343 mutex_enter(&msp->ms_lock); 2344 metaslab_unload(msp); 2345 2346 /* 2347 * For leak detection, we overload the metaslab 2348 * ms_tree to contain allocated segments 2349 * instead of free segments. As a result, 2350 * we can't use the normal metaslab_load/unload 2351 * interfaces. 2352 */ 2353 if (msp->ms_sm != NULL) { 2354 msp->ms_ops = &zdb_metaslab_ops; 2355 VERIFY0(space_map_load(msp->ms_sm, 2356 msp->ms_tree, SM_ALLOC)); 2357 msp->ms_loaded = B_TRUE; 2358 } 2359 mutex_exit(&msp->ms_lock); 2360 } 2361 } 2362 } 2363 2364 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2365 2366 zdb_ddt_leak_init(spa, zcb); 2367 2368 spa_config_exit(spa, SCL_CONFIG, FTAG); 2369} 2370 2371static void 2372zdb_leak_fini(spa_t *spa) 2373{ 2374 if (!dump_opt['L']) { 2375 vdev_t *rvd = spa->spa_root_vdev; 2376 for (int c = 0; c < rvd->vdev_children; c++) { 2377 vdev_t *vd = rvd->vdev_child[c]; 2378 for (int m = 0; m < vd->vdev_ms_count; m++) { 2379 metaslab_t *msp = vd->vdev_ms[m]; 2380 mutex_enter(&msp->ms_lock); 2381 2382 /* 2383 * The ms_tree has been overloaded to 2384 * contain allocated segments. Now that we 2385 * finished traversing all blocks, any 2386 * block that remains in the ms_tree 2387 * represents an allocated block that we 2388 * did not claim during the traversal. 2389 * Claimed blocks would have been removed 2390 * from the ms_tree. 2391 */ 2392 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2393 msp->ms_loaded = B_FALSE; 2394 2395 mutex_exit(&msp->ms_lock); 2396 } 2397 } 2398 } 2399} 2400 2401/* ARGSUSED */ 2402static int 2403count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2404{ 2405 zdb_cb_t *zcb = arg; 2406 2407 if (dump_opt['b'] >= 5) { 2408 char blkbuf[BP_SPRINTF_LEN]; 2409 sprintf_blkptr(blkbuf, bp); 2410 (void) printf("[%s] %s\n", 2411 "deferred free", blkbuf); 2412 } 2413 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2414 return (0); 2415} 2416 2417static int 2418dump_block_stats(spa_t *spa) 2419{ 2420 zdb_cb_t zcb = { 0 }; 2421 zdb_blkstats_t *zb, *tzb; 2422 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2423 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2424 int leaks = 0; 2425 2426 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2427 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2428 (dump_opt['c'] == 1) ? "metadata " : "", 2429 dump_opt['c'] ? "checksums " : "", 2430 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2431 !dump_opt['L'] ? "nothing leaked " : ""); 2432 2433 /* 2434 * Load all space maps as SM_ALLOC maps, then traverse the pool 2435 * claiming each block we discover. If the pool is perfectly 2436 * consistent, the space maps will be empty when we're done. 2437 * Anything left over is a leak; any block we can't claim (because 2438 * it's not part of any space map) is a double allocation, 2439 * reference to a freed block, or an unclaimed log block. 2440 */ 2441 zdb_leak_init(spa, &zcb); 2442 2443 /* 2444 * If there's a deferred-free bplist, process that first. 2445 */ 2446 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2447 count_block_cb, &zcb, NULL); 2448 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2449 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2450 count_block_cb, &zcb, NULL); 2451 } 2452 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2453 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2454 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2455 &zcb, NULL)); 2456 } 2457 2458 if (dump_opt['c'] > 1) 2459 flags |= TRAVERSE_PREFETCH_DATA; 2460 2461 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2462 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2463 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2464 2465 /* 2466 * If we've traversed the data blocks then we need to wait for those 2467 * I/Os to complete. We leverage "The Godfather" zio to wait on 2468 * all async I/Os to complete. 2469 */ 2470 if (dump_opt['c']) { 2471 (void) zio_wait(spa->spa_async_zio_root); 2472 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2473 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2474 ZIO_FLAG_GODFATHER); 2475 } 2476 2477 if (zcb.zcb_haderrors) { 2478 (void) printf("\nError counts:\n\n"); 2479 (void) printf("\t%5s %s\n", "errno", "count"); 2480 for (int e = 0; e < 256; e++) { 2481 if (zcb.zcb_errors[e] != 0) { 2482 (void) printf("\t%5d %llu\n", 2483 e, (u_longlong_t)zcb.zcb_errors[e]); 2484 } 2485 } 2486 } 2487 2488 /* 2489 * Report any leaked segments. 2490 */ 2491 zdb_leak_fini(spa); 2492 2493 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2494 2495 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2496 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2497 2498 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2499 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2500 2501 if (total_found == total_alloc) { 2502 if (!dump_opt['L']) 2503 (void) printf("\n\tNo leaks (block sum matches space" 2504 " maps exactly)\n"); 2505 } else { 2506 (void) printf("block traversal size %llu != alloc %llu " 2507 "(%s %lld)\n", 2508 (u_longlong_t)total_found, 2509 (u_longlong_t)total_alloc, 2510 (dump_opt['L']) ? "unreachable" : "leaked", 2511 (longlong_t)(total_alloc - total_found)); 2512 leaks = 1; 2513 } 2514 2515 if (tzb->zb_count == 0) 2516 return (2); 2517 2518 (void) printf("\n"); 2519 (void) printf("\tbp count: %10llu\n", 2520 (u_longlong_t)tzb->zb_count); 2521 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2522 (u_longlong_t)tzb->zb_lsize, 2523 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2524 (void) printf("\tbp physical: %10llu avg:" 2525 " %6llu compression: %6.2f\n", 2526 (u_longlong_t)tzb->zb_psize, 2527 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2528 (double)tzb->zb_lsize / tzb->zb_psize); 2529 (void) printf("\tbp allocated: %10llu avg:" 2530 " %6llu compression: %6.2f\n", 2531 (u_longlong_t)tzb->zb_asize, 2532 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2533 (double)tzb->zb_lsize / tzb->zb_asize); 2534 (void) printf("\tbp deduped: %10llu ref>1:" 2535 " %6llu deduplication: %6.2f\n", 2536 (u_longlong_t)zcb.zcb_dedup_asize, 2537 (u_longlong_t)zcb.zcb_dedup_blocks, 2538 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2539 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2540 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2541 2542 if (dump_opt['b'] >= 2) { 2543 int l, t, level; 2544 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2545 "\t avg\t comp\t%%Total\tType\n"); 2546 2547 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2548 char csize[32], lsize[32], psize[32], asize[32]; 2549 char avg[32]; 2550 char *typename; 2551 2552 if (t < DMU_OT_NUMTYPES) 2553 typename = dmu_ot[t].ot_name; 2554 else 2555 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2556 2557 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2558 (void) printf("%6s\t%5s\t%5s\t%5s" 2559 "\t%5s\t%5s\t%6s\t%s\n", 2560 "-", 2561 "-", 2562 "-", 2563 "-", 2564 "-", 2565 "-", 2566 "-", 2567 typename); 2568 continue; 2569 } 2570 2571 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2572 level = (l == -1 ? ZB_TOTAL : l); 2573 zb = &zcb.zcb_type[level][t]; 2574 2575 if (zb->zb_asize == 0) 2576 continue; 2577 2578 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2579 continue; 2580 2581 if (level == 0 && zb->zb_asize == 2582 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2583 continue; 2584 2585 zdb_nicenum(zb->zb_count, csize); 2586 zdb_nicenum(zb->zb_lsize, lsize); 2587 zdb_nicenum(zb->zb_psize, psize); 2588 zdb_nicenum(zb->zb_asize, asize); 2589 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2590 2591 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2592 "\t%5.2f\t%6.2f\t", 2593 csize, lsize, psize, asize, avg, 2594 (double)zb->zb_lsize / zb->zb_psize, 2595 100.0 * zb->zb_asize / tzb->zb_asize); 2596 2597 if (level == ZB_TOTAL) 2598 (void) printf("%s\n", typename); 2599 else 2600 (void) printf(" L%d %s\n", 2601 level, typename); 2602 2603 if (dump_opt['b'] >= 4) { 2604 (void) printf("psize " 2605 "(in 512-byte sectors): " 2606 "number of blocks\n"); 2607 dump_histogram(zb->zb_psize_histogram, 2608 PSIZE_HISTO_SIZE, 0); 2609 } 2610 } 2611 } 2612 } 2613 2614 (void) printf("\n"); 2615 2616 if (leaks) 2617 return (2); 2618 2619 if (zcb.zcb_haderrors) 2620 return (3); 2621 2622 return (0); 2623} 2624 2625typedef struct zdb_ddt_entry { 2626 ddt_key_t zdde_key; 2627 uint64_t zdde_ref_blocks; 2628 uint64_t zdde_ref_lsize; 2629 uint64_t zdde_ref_psize; 2630 uint64_t zdde_ref_dsize; 2631 avl_node_t zdde_node; 2632} zdb_ddt_entry_t; 2633 2634/* ARGSUSED */ 2635static int 2636zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2637 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2638{ 2639 avl_tree_t *t = arg; 2640 avl_index_t where; 2641 zdb_ddt_entry_t *zdde, zdde_search; 2642 2643 if (bp == NULL) 2644 return (0); 2645 2646 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2647 (void) printf("traversing objset %llu, %llu objects, " 2648 "%lu blocks so far\n", 2649 (u_longlong_t)zb->zb_objset, 2650 (u_longlong_t)bp->blk_fill, 2651 avl_numnodes(t)); 2652 } 2653 2654 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2655 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2656 return (0); 2657 2658 ddt_key_fill(&zdde_search.zdde_key, bp); 2659 2660 zdde = avl_find(t, &zdde_search, &where); 2661 2662 if (zdde == NULL) { 2663 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2664 zdde->zdde_key = zdde_search.zdde_key; 2665 avl_insert(t, zdde, where); 2666 } 2667 2668 zdde->zdde_ref_blocks += 1; 2669 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2670 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2671 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2672 2673 return (0); 2674} 2675 2676static void 2677dump_simulated_ddt(spa_t *spa) 2678{ 2679 avl_tree_t t; 2680 void *cookie = NULL; 2681 zdb_ddt_entry_t *zdde; 2682 ddt_histogram_t ddh_total = { 0 }; 2683 ddt_stat_t dds_total = { 0 }; 2684 2685 avl_create(&t, ddt_entry_compare, 2686 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2687 2688 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2689 2690 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2691 zdb_ddt_add_cb, &t); 2692 2693 spa_config_exit(spa, SCL_CONFIG, FTAG); 2694 2695 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2696 ddt_stat_t dds; 2697 uint64_t refcnt = zdde->zdde_ref_blocks; 2698 ASSERT(refcnt != 0); 2699 2700 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2701 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2702 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2703 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2704 2705 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2706 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2707 dds.dds_ref_psize = zdde->zdde_ref_psize; 2708 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2709 2710 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2711 2712 umem_free(zdde, sizeof (*zdde)); 2713 } 2714 2715 avl_destroy(&t); 2716 2717 ddt_histogram_stat(&dds_total, &ddh_total); 2718 2719 (void) printf("Simulated DDT histogram:\n"); 2720 2721 zpool_dump_ddt(&dds_total, &ddh_total); 2722 2723 dump_dedup_ratio(&dds_total); 2724} 2725 2726static void 2727dump_zpool(spa_t *spa) 2728{ 2729 dsl_pool_t *dp = spa_get_dsl(spa); 2730 int rc = 0; 2731 2732 if (dump_opt['S']) { 2733 dump_simulated_ddt(spa); 2734 return; 2735 } 2736 2737 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2738 (void) printf("\nCached configuration:\n"); 2739 dump_nvlist(spa->spa_config, 8); 2740 } 2741 2742 if (dump_opt['C']) 2743 dump_config(spa); 2744 2745 if (dump_opt['u']) 2746 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2747 2748 if (dump_opt['D']) 2749 dump_all_ddts(spa); 2750 2751 if (dump_opt['d'] > 2 || dump_opt['m']) 2752 dump_metaslabs(spa); 2753 2754 if (dump_opt['d'] || dump_opt['i']) { 2755 dump_dir(dp->dp_meta_objset); 2756 if (dump_opt['d'] >= 3) { 2757 dump_bpobj(&spa->spa_deferred_bpobj, 2758 "Deferred frees", 0); 2759 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2760 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2761 "Pool snapshot frees", 0); 2762 } 2763 2764 if (spa_feature_is_active(spa, 2765 SPA_FEATURE_ASYNC_DESTROY)) { 2766 dump_bptree(spa->spa_meta_objset, 2767 spa->spa_dsl_pool->dp_bptree_obj, 2768 "Pool dataset frees"); 2769 } 2770 dump_dtl(spa->spa_root_vdev, 0); 2771 } 2772 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2773 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2774 } 2775 if (dump_opt['b'] || dump_opt['c']) 2776 rc = dump_block_stats(spa); 2777 2778 if (rc == 0) 2779 rc = verify_spacemap_refcounts(spa); 2780 2781 if (dump_opt['s']) 2782 show_pool_stats(spa); 2783 2784 if (dump_opt['h']) 2785 dump_history(spa); 2786 2787 if (rc != 0) 2788 exit(rc); 2789} 2790 2791#define ZDB_FLAG_CHECKSUM 0x0001 2792#define ZDB_FLAG_DECOMPRESS 0x0002 2793#define ZDB_FLAG_BSWAP 0x0004 2794#define ZDB_FLAG_GBH 0x0008 2795#define ZDB_FLAG_INDIRECT 0x0010 2796#define ZDB_FLAG_PHYS 0x0020 2797#define ZDB_FLAG_RAW 0x0040 2798#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2799 2800int flagbits[256]; 2801 2802static void 2803zdb_print_blkptr(blkptr_t *bp, int flags) 2804{ 2805 char blkbuf[BP_SPRINTF_LEN]; 2806 2807 if (flags & ZDB_FLAG_BSWAP) 2808 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2809 2810 sprintf_blkptr(blkbuf, bp); 2811 (void) printf("%s\n", blkbuf); 2812} 2813 2814static void 2815zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2816{ 2817 int i; 2818 2819 for (i = 0; i < nbps; i++) 2820 zdb_print_blkptr(&bp[i], flags); 2821} 2822 2823static void 2824zdb_dump_gbh(void *buf, int flags) 2825{ 2826 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2827} 2828 2829static void 2830zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2831{ 2832 if (flags & ZDB_FLAG_BSWAP) 2833 byteswap_uint64_array(buf, size); 2834 (void) write(1, buf, size); 2835} 2836 2837static void 2838zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2839{ 2840 uint64_t *d = (uint64_t *)buf; 2841 int nwords = size / sizeof (uint64_t); 2842 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2843 int i, j; 2844 char *hdr, *c; 2845 2846 2847 if (do_bswap) 2848 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2849 else 2850 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2851 2852 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2853 2854 for (i = 0; i < nwords; i += 2) { 2855 (void) printf("%06llx: %016llx %016llx ", 2856 (u_longlong_t)(i * sizeof (uint64_t)), 2857 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2858 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2859 2860 c = (char *)&d[i]; 2861 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2862 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2863 (void) printf("\n"); 2864 } 2865} 2866 2867/* 2868 * There are two acceptable formats: 2869 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2870 * child[.child]* - For example: 0.1.1 2871 * 2872 * The second form can be used to specify arbitrary vdevs anywhere 2873 * in the heirarchy. For example, in a pool with a mirror of 2874 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2875 */ 2876static vdev_t * 2877zdb_vdev_lookup(vdev_t *vdev, char *path) 2878{ 2879 char *s, *p, *q; 2880 int i; 2881 2882 if (vdev == NULL) 2883 return (NULL); 2884 2885 /* First, assume the x.x.x.x format */ 2886 i = (int)strtoul(path, &s, 10); 2887 if (s == path || (s && *s != '.' && *s != '\0')) 2888 goto name; 2889 if (i < 0 || i >= vdev->vdev_children) 2890 return (NULL); 2891 2892 vdev = vdev->vdev_child[i]; 2893 if (*s == '\0') 2894 return (vdev); 2895 return (zdb_vdev_lookup(vdev, s+1)); 2896 2897name: 2898 for (i = 0; i < vdev->vdev_children; i++) { 2899 vdev_t *vc = vdev->vdev_child[i]; 2900 2901 if (vc->vdev_path == NULL) { 2902 vc = zdb_vdev_lookup(vc, path); 2903 if (vc == NULL) 2904 continue; 2905 else 2906 return (vc); 2907 } 2908 2909 p = strrchr(vc->vdev_path, '/'); 2910 p = p ? p + 1 : vc->vdev_path; 2911 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2912 2913 if (strcmp(vc->vdev_path, path) == 0) 2914 return (vc); 2915 if (strcmp(p, path) == 0) 2916 return (vc); 2917 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2918 return (vc); 2919 } 2920 2921 return (NULL); 2922} 2923 2924/* 2925 * Read a block from a pool and print it out. The syntax of the 2926 * block descriptor is: 2927 * 2928 * pool:vdev_specifier:offset:size[:flags] 2929 * 2930 * pool - The name of the pool you wish to read from 2931 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2932 * offset - offset, in hex, in bytes 2933 * size - Amount of data to read, in hex, in bytes 2934 * flags - A string of characters specifying options 2935 * b: Decode a blkptr at given offset within block 2936 * *c: Calculate and display checksums 2937 * d: Decompress data before dumping 2938 * e: Byteswap data before dumping 2939 * g: Display data as a gang block header 2940 * i: Display as an indirect block 2941 * p: Do I/O to physical offset 2942 * r: Dump raw data to stdout 2943 * 2944 * * = not yet implemented 2945 */ 2946static void 2947zdb_read_block(char *thing, spa_t *spa) 2948{ 2949 blkptr_t blk, *bp = &blk; 2950 dva_t *dva = bp->blk_dva; 2951 int flags = 0; 2952 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2953 zio_t *zio; 2954 vdev_t *vd; 2955 void *pbuf, *lbuf, *buf; 2956 char *s, *p, *dup, *vdev, *flagstr; 2957 int i, error; 2958 2959 dup = strdup(thing); 2960 s = strtok(dup, ":"); 2961 vdev = s ? s : ""; 2962 s = strtok(NULL, ":"); 2963 offset = strtoull(s ? s : "", NULL, 16); 2964 s = strtok(NULL, ":"); 2965 size = strtoull(s ? s : "", NULL, 16); 2966 s = strtok(NULL, ":"); 2967 flagstr = s ? s : ""; 2968 2969 s = NULL; 2970 if (size == 0) 2971 s = "size must not be zero"; 2972 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2973 s = "size must be a multiple of sector size"; 2974 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2975 s = "offset must be a multiple of sector size"; 2976 if (s) { 2977 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2978 free(dup); 2979 return; 2980 } 2981 2982 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2983 for (i = 0; flagstr[i]; i++) { 2984 int bit = flagbits[(uchar_t)flagstr[i]]; 2985 2986 if (bit == 0) { 2987 (void) printf("***Invalid flag: %c\n", 2988 flagstr[i]); 2989 continue; 2990 } 2991 flags |= bit; 2992 2993 /* If it's not something with an argument, keep going */ 2994 if ((bit & (ZDB_FLAG_CHECKSUM | 2995 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2996 continue; 2997 2998 p = &flagstr[i + 1]; 2999 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3000 blkptr_offset = strtoull(p, &p, 16); 3001 if (*p != ':' && *p != '\0') { 3002 (void) printf("***Invalid flag arg: '%s'\n", s); 3003 free(dup); 3004 return; 3005 } 3006 i += p - &flagstr[i + 1]; /* skip over the number */ 3007 } 3008 } 3009 3010 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3011 if (vd == NULL) { 3012 (void) printf("***Invalid vdev: %s\n", vdev); 3013 free(dup); 3014 return; 3015 } else { 3016 if (vd->vdev_path) 3017 (void) fprintf(stderr, "Found vdev: %s\n", 3018 vd->vdev_path); 3019 else 3020 (void) fprintf(stderr, "Found vdev type: %s\n", 3021 vd->vdev_ops->vdev_op_type); 3022 } 3023 3024 psize = size; 3025 lsize = size; 3026 3027 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3028 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3029 3030 BP_ZERO(bp); 3031 3032 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3033 DVA_SET_OFFSET(&dva[0], offset); 3034 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3035 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3036 3037 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3038 3039 BP_SET_LSIZE(bp, lsize); 3040 BP_SET_PSIZE(bp, psize); 3041 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3042 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3043 BP_SET_TYPE(bp, DMU_OT_NONE); 3044 BP_SET_LEVEL(bp, 0); 3045 BP_SET_DEDUP(bp, 0); 3046 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3047 3048 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3049 zio = zio_root(spa, NULL, NULL, 0); 3050 3051 if (vd == vd->vdev_top) { 3052 /* 3053 * Treat this as a normal block read. 3054 */ 3055 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3056 ZIO_PRIORITY_SYNC_READ, 3057 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3058 } else { 3059 /* 3060 * Treat this as a vdev child I/O. 3061 */ 3062 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3063 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3064 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3065 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3066 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3067 } 3068 3069 error = zio_wait(zio); 3070 spa_config_exit(spa, SCL_STATE, FTAG); 3071 3072 if (error) { 3073 (void) printf("Read of %s failed, error: %d\n", thing, error); 3074 goto out; 3075 } 3076 3077 if (flags & ZDB_FLAG_DECOMPRESS) { 3078 /* 3079 * We don't know how the data was compressed, so just try 3080 * every decompress function at every inflated blocksize. 3081 */ 3082 enum zio_compress c; 3083 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3084 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3085 3086 bcopy(pbuf, pbuf2, psize); 3087 3088 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3089 SPA_MAXBLOCKSIZE - psize) == 0); 3090 3091 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3092 SPA_MAXBLOCKSIZE - psize) == 0); 3093 3094 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3095 lsize -= SPA_MINBLOCKSIZE) { 3096 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3097 if (zio_decompress_data(c, pbuf, lbuf, 3098 psize, lsize) == 0 && 3099 zio_decompress_data(c, pbuf2, lbuf2, 3100 psize, lsize) == 0 && 3101 bcmp(lbuf, lbuf2, lsize) == 0) 3102 break; 3103 } 3104 if (c != ZIO_COMPRESS_FUNCTIONS) 3105 break; 3106 lsize -= SPA_MINBLOCKSIZE; 3107 } 3108 3109 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3110 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3111 3112 if (lsize <= psize) { 3113 (void) printf("Decompress of %s failed\n", thing); 3114 goto out; 3115 } 3116 buf = lbuf; 3117 size = lsize; 3118 } else { 3119 buf = pbuf; 3120 size = psize; 3121 } 3122 3123 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3124 zdb_print_blkptr((blkptr_t *)(void *) 3125 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3126 else if (flags & ZDB_FLAG_RAW) 3127 zdb_dump_block_raw(buf, size, flags); 3128 else if (flags & ZDB_FLAG_INDIRECT) 3129 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3130 flags); 3131 else if (flags & ZDB_FLAG_GBH) 3132 zdb_dump_gbh(buf, flags); 3133 else 3134 zdb_dump_block(thing, buf, size, flags); 3135 3136out: 3137 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3138 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3139 free(dup); 3140} 3141 3142static boolean_t 3143pool_match(nvlist_t *cfg, char *tgt) 3144{ 3145 uint64_t v, guid = strtoull(tgt, NULL, 0); 3146 char *s; 3147 3148 if (guid != 0) { 3149 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3150 return (v == guid); 3151 } else { 3152 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3153 return (strcmp(s, tgt) == 0); 3154 } 3155 return (B_FALSE); 3156} 3157 3158static char * 3159find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3160{ 3161 nvlist_t *pools; 3162 nvlist_t *match = NULL; 3163 char *name = NULL; 3164 char *sepp = NULL; 3165 char sep; 3166 int count = 0; 3167 importargs_t args = { 0 }; 3168 3169 args.paths = dirc; 3170 args.path = dirv; 3171 args.can_be_active = B_TRUE; 3172 3173 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3174 sep = *sepp; 3175 *sepp = '\0'; 3176 } 3177 3178 pools = zpool_search_import(g_zfs, &args); 3179 3180 if (pools != NULL) { 3181 nvpair_t *elem = NULL; 3182 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3183 verify(nvpair_value_nvlist(elem, configp) == 0); 3184 if (pool_match(*configp, *target)) { 3185 count++; 3186 if (match != NULL) { 3187 /* print previously found config */ 3188 if (name != NULL) { 3189 (void) printf("%s\n", name); 3190 dump_nvlist(match, 8); 3191 name = NULL; 3192 } 3193 (void) printf("%s\n", 3194 nvpair_name(elem)); 3195 dump_nvlist(*configp, 8); 3196 } else { 3197 match = *configp; 3198 name = nvpair_name(elem); 3199 } 3200 } 3201 } 3202 } 3203 if (count > 1) 3204 (void) fatal("\tMatched %d pools - use pool GUID " 3205 "instead of pool name or \n" 3206 "\tpool name part of a dataset name to select pool", count); 3207 3208 if (sepp) 3209 *sepp = sep; 3210 /* 3211 * If pool GUID was specified for pool id, replace it with pool name 3212 */ 3213 if (name && (strstr(*target, name) != *target)) { 3214 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3215 3216 *target = umem_alloc(sz, UMEM_NOFAIL); 3217 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3218 } 3219 3220 *configp = name ? match : NULL; 3221 3222 return (name); 3223} 3224 3225int 3226main(int argc, char **argv) 3227{ 3228 int i, c; 3229 struct rlimit rl = { 1024, 1024 }; 3230 spa_t *spa = NULL; 3231 objset_t *os = NULL; 3232 int dump_all = 1; 3233 int verbose = 0; 3234 int error = 0; 3235 char **searchdirs = NULL; 3236 int nsearch = 0; 3237 char *target; 3238 nvlist_t *policy = NULL; 3239 uint64_t max_txg = UINT64_MAX; 3240 int rewind = ZPOOL_NEVER_REWIND; 3241 3242 (void) setrlimit(RLIMIT_NOFILE, &rl); 3243 (void) enable_extended_FILE_stdio(-1, -1); 3244 3245 dprintf_setup(&argc, argv); 3246 3247 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3248 switch (c) { 3249 case 'b': 3250 case 'c': 3251 case 'd': 3252 case 'h': 3253 case 'i': 3254 case 'l': 3255 case 'm': 3256 case 's': 3257 case 'u': 3258 case 'C': 3259 case 'D': 3260 case 'R': 3261 case 'S': 3262 dump_opt[c]++; 3263 dump_all = 0; 3264 break; 3265 case 'A': 3266 case 'F': 3267 case 'L': 3268 case 'X': 3269 case 'e': 3270 case 'P': 3271 dump_opt[c]++; 3272 break; 3273 case 'v': 3274 verbose++; 3275 break; 3276 case 'M': 3277 max_inflight = strtoull(optarg, NULL, 0); 3278 if (max_inflight == 0) { 3279 (void) fprintf(stderr, "maximum number " 3280 "of inflight I/Os must be greater " 3281 "than 0\n"); 3282 usage(); 3283 } 3284 break; 3285 case 'p': 3286 if (searchdirs == NULL) { 3287 searchdirs = umem_alloc(sizeof (char *), 3288 UMEM_NOFAIL); 3289 } else { 3290 char **tmp = umem_alloc((nsearch + 1) * 3291 sizeof (char *), UMEM_NOFAIL); 3292 bcopy(searchdirs, tmp, nsearch * 3293 sizeof (char *)); 3294 umem_free(searchdirs, 3295 nsearch * sizeof (char *)); 3296 searchdirs = tmp; 3297 } 3298 searchdirs[nsearch++] = optarg; 3299 break; 3300 case 't': 3301 max_txg = strtoull(optarg, NULL, 0); 3302 if (max_txg < TXG_INITIAL) { 3303 (void) fprintf(stderr, "incorrect txg " 3304 "specified: %s\n", optarg); 3305 usage(); 3306 } 3307 break; 3308 case 'U': 3309 spa_config_path = optarg; 3310 break; 3311 default: 3312 usage(); 3313 break; 3314 } 3315 } 3316 3317 if (!dump_opt['e'] && searchdirs != NULL) { 3318 (void) fprintf(stderr, "-p option requires use of -e\n"); 3319 usage(); 3320 } 3321 3322 kernel_init(FREAD); 3323 g_zfs = libzfs_init(); 3324 ASSERT(g_zfs != NULL); 3325 3326 if (dump_all) 3327 verbose = MAX(verbose, 1); 3328 3329 for (c = 0; c < 256; c++) { 3330 if (dump_all && !strchr("elAFLRSXP", c)) 3331 dump_opt[c] = 1; 3332 if (dump_opt[c]) 3333 dump_opt[c] += verbose; 3334 } 3335 3336 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3337 zfs_recover = (dump_opt['A'] > 1); 3338 3339 argc -= optind; 3340 argv += optind; 3341 3342 if (argc < 2 && dump_opt['R']) 3343 usage(); 3344 if (argc < 1) { 3345 if (!dump_opt['e'] && dump_opt['C']) { 3346 dump_cachefile(spa_config_path); 3347 return (0); 3348 } 3349 usage(); 3350 } 3351 3352 if (dump_opt['l']) { 3353 dump_label(argv[0]); 3354 return (0); 3355 } 3356 3357 if (dump_opt['X'] || dump_opt['F']) 3358 rewind = ZPOOL_DO_REWIND | 3359 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3360 3361 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3362 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3363 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3364 fatal("internal error: %s", strerror(ENOMEM)); 3365 3366 error = 0; 3367 target = argv[0]; 3368 3369 if (dump_opt['e']) { 3370 nvlist_t *cfg = NULL; 3371 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3372 3373 error = ENOENT; 3374 if (name) { 3375 if (dump_opt['C'] > 1) { 3376 (void) printf("\nConfiguration for import:\n"); 3377 dump_nvlist(cfg, 8); 3378 } 3379 if (nvlist_add_nvlist(cfg, 3380 ZPOOL_REWIND_POLICY, policy) != 0) { 3381 fatal("can't open '%s': %s", 3382 target, strerror(ENOMEM)); 3383 } 3384 if ((error = spa_import(name, cfg, NULL, 3385 ZFS_IMPORT_MISSING_LOG)) != 0) { 3386 error = spa_import(name, cfg, NULL, 3387 ZFS_IMPORT_VERBATIM); 3388 } 3389 } 3390 } 3391 3392 if (error == 0) { 3393 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3394 error = spa_open_rewind(target, &spa, FTAG, policy, 3395 NULL); 3396 if (error) { 3397 /* 3398 * If we're missing the log device then 3399 * try opening the pool after clearing the 3400 * log state. 3401 */ 3402 mutex_enter(&spa_namespace_lock); 3403 if ((spa = spa_lookup(target)) != NULL && 3404 spa->spa_log_state == SPA_LOG_MISSING) { 3405 spa->spa_log_state = SPA_LOG_CLEAR; 3406 error = 0; 3407 } 3408 mutex_exit(&spa_namespace_lock); 3409 3410 if (!error) { 3411 error = spa_open_rewind(target, &spa, 3412 FTAG, policy, NULL); 3413 } 3414 } 3415 } else { 3416 error = dmu_objset_own(target, DMU_OST_ANY, 3417 B_TRUE, FTAG, &os); 3418 } 3419 } 3420 nvlist_free(policy); 3421 3422 if (error) 3423 fatal("can't open '%s': %s", target, strerror(error)); 3424 3425 argv++; 3426 argc--; 3427 if (!dump_opt['R']) { 3428 if (argc > 0) { 3429 zopt_objects = argc; 3430 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3431 for (i = 0; i < zopt_objects; i++) { 3432 errno = 0; 3433 zopt_object[i] = strtoull(argv[i], NULL, 0); 3434 if (zopt_object[i] == 0 && errno != 0) 3435 fatal("bad number %s: %s", 3436 argv[i], strerror(errno)); 3437 } 3438 } 3439 if (os != NULL) { 3440 dump_dir(os); 3441 } else if (zopt_objects > 0 && !dump_opt['m']) { 3442 dump_dir(spa->spa_meta_objset); 3443 } else { 3444 dump_zpool(spa); 3445 } 3446 } else { 3447 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3448 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3449 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3450 flagbits['e'] = ZDB_FLAG_BSWAP; 3451 flagbits['g'] = ZDB_FLAG_GBH; 3452 flagbits['i'] = ZDB_FLAG_INDIRECT; 3453 flagbits['p'] = ZDB_FLAG_PHYS; 3454 flagbits['r'] = ZDB_FLAG_RAW; 3455 3456 for (i = 0; i < argc; i++) 3457 zdb_read_block(argv[i], spa); 3458 } 3459 3460 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3461 3462 fuid_table_destroy(); 3463 sa_loaded = B_FALSE; 3464 3465 libzfs_fini(g_zfs); 3466 kernel_fini(); 3467 3468 return (0); 3469} 3470