zdb.c revision 273508
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) 2011, 2014 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern boolean_t zfs_recover; 79extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 80#else 81boolean_t zfs_recover; 82uint64_t zfs_arc_max, zfs_arc_meta_limit; 83#endif 84 85const char cmdname[] = "zdb"; 86uint8_t dump_opt[256]; 87 88typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 89 90extern void dump_intent_log(zilog_t *); 91uint64_t *zopt_object = NULL; 92int zopt_objects = 0; 93libzfs_handle_t *g_zfs; 94uint64_t max_inflight = 1000; 95 96/* 97 * These libumem hooks provide a reasonable set of defaults for the allocator's 98 * debugging facilities. 99 */ 100const char * 101_umem_debug_init() 102{ 103 return ("default,verbose"); /* $UMEM_DEBUG setting */ 104} 105 106const char * 107_umem_logging_init(void) 108{ 109 return ("fail,contents"); /* $UMEM_LOGGING setting */ 110} 111 112static void 113usage(void) 114{ 115 (void) fprintf(stderr, 116 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 117 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n" 118 " %s [-divPA] [-e -p path...] [-U config] dataset " 119 "[object...]\n" 120 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 121 "poolname [vdev [metaslab...]]\n" 122 " %s -R [-A] [-e [-p path...]] poolname " 123 "vdev:offset:size[:flags]\n" 124 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 125 " %s -l [-uA] device\n" 126 " %s -C [-A] [-U config]\n\n", 127 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 128 129 (void) fprintf(stderr, " Dataset name must include at least one " 130 "separator character '/' or '@'\n"); 131 (void) fprintf(stderr, " If dataset name is specified, only that " 132 "dataset is dumped\n"); 133 (void) fprintf(stderr, " If object numbers are specified, only " 134 "those objects are dumped\n\n"); 135 (void) fprintf(stderr, " Options to control amount of output:\n"); 136 (void) fprintf(stderr, " -u uberblock\n"); 137 (void) fprintf(stderr, " -d dataset(s)\n"); 138 (void) fprintf(stderr, " -i intent logs\n"); 139 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 140 (void) fprintf(stderr, " -h pool history\n"); 141 (void) fprintf(stderr, " -b block statistics\n"); 142 (void) fprintf(stderr, " -m metaslabs\n"); 143 (void) fprintf(stderr, " -M metaslab groups\n"); 144 (void) fprintf(stderr, " -c checksum all metadata (twice for " 145 "all data) blocks\n"); 146 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 147 (void) fprintf(stderr, " -D dedup statistics\n"); 148 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 149 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 150 (void) fprintf(stderr, " -l dump label contents\n"); 151 (void) fprintf(stderr, " -L disable leak tracking (do not " 152 "load spacemaps)\n"); 153 (void) fprintf(stderr, " -R read and display block from a " 154 "device\n\n"); 155 (void) fprintf(stderr, " Below options are intended for use " 156 "with other options:\n"); 157 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 158 "panic recovery (-AA) or both (-AAA)\n"); 159 (void) fprintf(stderr, " -F attempt automatic rewind within " 160 "safe range of transaction groups\n"); 161 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 162 "cachefile\n"); 163 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 164 "work with dataset)\n"); 165 (void) fprintf(stderr, " -e pool is exported/destroyed/" 166 "has altroot/not in a cachefile\n"); 167 (void) fprintf(stderr, " -p <path> -- use one or more with " 168 "-e to specify path to vdev dir\n"); 169 (void) fprintf(stderr, " -x <dumpdir> -- " 170 "dump all read blocks into specified directory\n"); 171 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 172 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 173 "searching for uberblocks\n"); 174 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 175 "specify the maximum number of " 176 "checksumming I/Os [default is 200]\n"); 177 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 178 "to make only that option verbose\n"); 179 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 180 exit(1); 181} 182 183/* 184 * Called for usage errors that are discovered after a call to spa_open(), 185 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 186 */ 187 188static void 189fatal(const char *fmt, ...) 190{ 191 va_list ap; 192 193 va_start(ap, fmt); 194 (void) fprintf(stderr, "%s: ", cmdname); 195 (void) vfprintf(stderr, fmt, ap); 196 va_end(ap); 197 (void) fprintf(stderr, "\n"); 198 199 exit(1); 200} 201 202/* ARGSUSED */ 203static void 204dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 205{ 206 nvlist_t *nv; 207 size_t nvsize = *(uint64_t *)data; 208 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 209 210 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 211 212 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 213 214 umem_free(packed, nvsize); 215 216 dump_nvlist(nv, 8); 217 218 nvlist_free(nv); 219} 220 221/* ARGSUSED */ 222static void 223dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 224{ 225 spa_history_phys_t *shp = data; 226 227 if (shp == NULL) 228 return; 229 230 (void) printf("\t\tpool_create_len = %llu\n", 231 (u_longlong_t)shp->sh_pool_create_len); 232 (void) printf("\t\tphys_max_off = %llu\n", 233 (u_longlong_t)shp->sh_phys_max_off); 234 (void) printf("\t\tbof = %llu\n", 235 (u_longlong_t)shp->sh_bof); 236 (void) printf("\t\teof = %llu\n", 237 (u_longlong_t)shp->sh_eof); 238 (void) printf("\t\trecords_lost = %llu\n", 239 (u_longlong_t)shp->sh_records_lost); 240} 241 242static void 243zdb_nicenum(uint64_t num, char *buf) 244{ 245 if (dump_opt['P']) 246 (void) sprintf(buf, "%llu", (longlong_t)num); 247 else 248 nicenum(num, buf); 249} 250 251const char histo_stars[] = "****************************************"; 252const int histo_width = sizeof (histo_stars) - 1; 253 254static void 255dump_histogram(const uint64_t *histo, int size, int offset) 256{ 257 int i; 258 int minidx = size - 1; 259 int maxidx = 0; 260 uint64_t max = 0; 261 262 for (i = 0; i < size; i++) { 263 if (histo[i] > max) 264 max = histo[i]; 265 if (histo[i] > 0 && i > maxidx) 266 maxidx = i; 267 if (histo[i] > 0 && i < minidx) 268 minidx = i; 269 } 270 271 if (max < histo_width) 272 max = histo_width; 273 274 for (i = minidx; i <= maxidx; i++) { 275 (void) printf("\t\t\t%3u: %6llu %s\n", 276 i + offset, (u_longlong_t)histo[i], 277 &histo_stars[(max - histo[i]) * histo_width / max]); 278 } 279} 280 281static void 282dump_zap_stats(objset_t *os, uint64_t object) 283{ 284 int error; 285 zap_stats_t zs; 286 287 error = zap_get_stats(os, object, &zs); 288 if (error) 289 return; 290 291 if (zs.zs_ptrtbl_len == 0) { 292 ASSERT(zs.zs_num_blocks == 1); 293 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 294 (u_longlong_t)zs.zs_blocksize, 295 (u_longlong_t)zs.zs_num_entries); 296 return; 297 } 298 299 (void) printf("\tFat ZAP stats:\n"); 300 301 (void) printf("\t\tPointer table:\n"); 302 (void) printf("\t\t\t%llu elements\n", 303 (u_longlong_t)zs.zs_ptrtbl_len); 304 (void) printf("\t\t\tzt_blk: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 306 (void) printf("\t\t\tzt_numblks: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 308 (void) printf("\t\t\tzt_shift: %llu\n", 309 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 310 (void) printf("\t\t\tzt_blks_copied: %llu\n", 311 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 312 (void) printf("\t\t\tzt_nextblk: %llu\n", 313 (u_longlong_t)zs.zs_ptrtbl_nextblk); 314 315 (void) printf("\t\tZAP entries: %llu\n", 316 (u_longlong_t)zs.zs_num_entries); 317 (void) printf("\t\tLeaf blocks: %llu\n", 318 (u_longlong_t)zs.zs_num_leafs); 319 (void) printf("\t\tTotal blocks: %llu\n", 320 (u_longlong_t)zs.zs_num_blocks); 321 (void) printf("\t\tzap_block_type: 0x%llx\n", 322 (u_longlong_t)zs.zs_block_type); 323 (void) printf("\t\tzap_magic: 0x%llx\n", 324 (u_longlong_t)zs.zs_magic); 325 (void) printf("\t\tzap_salt: 0x%llx\n", 326 (u_longlong_t)zs.zs_salt); 327 328 (void) printf("\t\tLeafs with 2^n pointers:\n"); 329 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tBlocks with n*5 entries:\n"); 332 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBlocks n/10 full:\n"); 335 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 336 337 (void) printf("\t\tEntries with n chunks:\n"); 338 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 339 340 (void) printf("\t\tBuckets with n entries:\n"); 341 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 342} 343 344/*ARGSUSED*/ 345static void 346dump_none(objset_t *os, uint64_t object, void *data, size_t size) 347{ 348} 349 350/*ARGSUSED*/ 351static void 352dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 353{ 354 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 355} 356 357/*ARGSUSED*/ 358void 359dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 360{ 361} 362 363/*ARGSUSED*/ 364static void 365dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 366{ 367} 368 369/*ARGSUSED*/ 370static void 371dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 372{ 373 zap_cursor_t zc; 374 zap_attribute_t attr; 375 void *prop; 376 int i; 377 378 dump_zap_stats(os, object); 379 (void) printf("\n"); 380 381 for (zap_cursor_init(&zc, os, object); 382 zap_cursor_retrieve(&zc, &attr) == 0; 383 zap_cursor_advance(&zc)) { 384 (void) printf("\t\t%s = ", attr.za_name); 385 if (attr.za_num_integers == 0) { 386 (void) printf("\n"); 387 continue; 388 } 389 prop = umem_zalloc(attr.za_num_integers * 390 attr.za_integer_length, UMEM_NOFAIL); 391 (void) zap_lookup(os, object, attr.za_name, 392 attr.za_integer_length, attr.za_num_integers, prop); 393 if (attr.za_integer_length == 1) { 394 (void) printf("%s", (char *)prop); 395 } else { 396 for (i = 0; i < attr.za_num_integers; i++) { 397 switch (attr.za_integer_length) { 398 case 2: 399 (void) printf("%u ", 400 ((uint16_t *)prop)[i]); 401 break; 402 case 4: 403 (void) printf("%u ", 404 ((uint32_t *)prop)[i]); 405 break; 406 case 8: 407 (void) printf("%lld ", 408 (u_longlong_t)((int64_t *)prop)[i]); 409 break; 410 } 411 } 412 } 413 (void) printf("\n"); 414 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 415 } 416 zap_cursor_fini(&zc); 417} 418 419/*ARGSUSED*/ 420static void 421dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 422{ 423 dump_zap_stats(os, object); 424 /* contents are printed elsewhere, properly decoded */ 425} 426 427/*ARGSUSED*/ 428static void 429dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 430{ 431 zap_cursor_t zc; 432 zap_attribute_t attr; 433 434 dump_zap_stats(os, object); 435 (void) printf("\n"); 436 437 for (zap_cursor_init(&zc, os, object); 438 zap_cursor_retrieve(&zc, &attr) == 0; 439 zap_cursor_advance(&zc)) { 440 (void) printf("\t\t%s = ", attr.za_name); 441 if (attr.za_num_integers == 0) { 442 (void) printf("\n"); 443 continue; 444 } 445 (void) printf(" %llx : [%d:%d:%d]\n", 446 (u_longlong_t)attr.za_first_integer, 447 (int)ATTR_LENGTH(attr.za_first_integer), 448 (int)ATTR_BSWAP(attr.za_first_integer), 449 (int)ATTR_NUM(attr.za_first_integer)); 450 } 451 zap_cursor_fini(&zc); 452} 453 454/*ARGSUSED*/ 455static void 456dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 457{ 458 zap_cursor_t zc; 459 zap_attribute_t attr; 460 uint16_t *layout_attrs; 461 int i; 462 463 dump_zap_stats(os, object); 464 (void) printf("\n"); 465 466 for (zap_cursor_init(&zc, os, object); 467 zap_cursor_retrieve(&zc, &attr) == 0; 468 zap_cursor_advance(&zc)) { 469 (void) printf("\t\t%s = [", attr.za_name); 470 if (attr.za_num_integers == 0) { 471 (void) printf("\n"); 472 continue; 473 } 474 475 VERIFY(attr.za_integer_length == 2); 476 layout_attrs = umem_zalloc(attr.za_num_integers * 477 attr.za_integer_length, UMEM_NOFAIL); 478 479 VERIFY(zap_lookup(os, object, attr.za_name, 480 attr.za_integer_length, 481 attr.za_num_integers, layout_attrs) == 0); 482 483 for (i = 0; i != attr.za_num_integers; i++) 484 (void) printf(" %d ", (int)layout_attrs[i]); 485 (void) printf("]\n"); 486 umem_free(layout_attrs, 487 attr.za_num_integers * attr.za_integer_length); 488 } 489 zap_cursor_fini(&zc); 490} 491 492/*ARGSUSED*/ 493static void 494dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 495{ 496 zap_cursor_t zc; 497 zap_attribute_t attr; 498 const char *typenames[] = { 499 /* 0 */ "not specified", 500 /* 1 */ "FIFO", 501 /* 2 */ "Character Device", 502 /* 3 */ "3 (invalid)", 503 /* 4 */ "Directory", 504 /* 5 */ "5 (invalid)", 505 /* 6 */ "Block Device", 506 /* 7 */ "7 (invalid)", 507 /* 8 */ "Regular File", 508 /* 9 */ "9 (invalid)", 509 /* 10 */ "Symbolic Link", 510 /* 11 */ "11 (invalid)", 511 /* 12 */ "Socket", 512 /* 13 */ "Door", 513 /* 14 */ "Event Port", 514 /* 15 */ "15 (invalid)", 515 }; 516 517 dump_zap_stats(os, object); 518 (void) printf("\n"); 519 520 for (zap_cursor_init(&zc, os, object); 521 zap_cursor_retrieve(&zc, &attr) == 0; 522 zap_cursor_advance(&zc)) { 523 (void) printf("\t\t%s = %lld (type: %s)\n", 524 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 525 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 526 } 527 zap_cursor_fini(&zc); 528} 529 530int 531get_dtl_refcount(vdev_t *vd) 532{ 533 int refcount = 0; 534 535 if (vd->vdev_ops->vdev_op_leaf) { 536 space_map_t *sm = vd->vdev_dtl_sm; 537 538 if (sm != NULL && 539 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 540 return (1); 541 return (0); 542 } 543 544 for (int c = 0; c < vd->vdev_children; c++) 545 refcount += get_dtl_refcount(vd->vdev_child[c]); 546 return (refcount); 547} 548 549int 550get_metaslab_refcount(vdev_t *vd) 551{ 552 int refcount = 0; 553 554 if (vd->vdev_top == vd && !vd->vdev_removing) { 555 for (int m = 0; m < vd->vdev_ms_count; m++) { 556 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 557 558 if (sm != NULL && 559 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 560 refcount++; 561 } 562 } 563 for (int c = 0; c < vd->vdev_children; c++) 564 refcount += get_metaslab_refcount(vd->vdev_child[c]); 565 566 return (refcount); 567} 568 569static int 570verify_spacemap_refcounts(spa_t *spa) 571{ 572 uint64_t expected_refcount = 0; 573 uint64_t actual_refcount; 574 575 (void) feature_get_refcount(spa, 576 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 577 &expected_refcount); 578 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 579 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 580 581 if (expected_refcount != actual_refcount) { 582 (void) printf("space map refcount mismatch: expected %lld != " 583 "actual %lld\n", 584 (longlong_t)expected_refcount, 585 (longlong_t)actual_refcount); 586 return (2); 587 } 588 return (0); 589} 590 591static void 592dump_spacemap(objset_t *os, space_map_t *sm) 593{ 594 uint64_t alloc, offset, entry; 595 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 596 "INVALID", "INVALID", "INVALID", "INVALID" }; 597 598 if (sm == NULL) 599 return; 600 601 /* 602 * Print out the freelist entries in both encoded and decoded form. 603 */ 604 alloc = 0; 605 for (offset = 0; offset < space_map_length(sm); 606 offset += sizeof (entry)) { 607 uint8_t mapshift = sm->sm_shift; 608 609 VERIFY0(dmu_read(os, space_map_object(sm), offset, 610 sizeof (entry), &entry, DMU_READ_PREFETCH)); 611 if (SM_DEBUG_DECODE(entry)) { 612 613 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 614 (u_longlong_t)(offset / sizeof (entry)), 615 ddata[SM_DEBUG_ACTION_DECODE(entry)], 616 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 617 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 618 } else { 619 (void) printf("\t [%6llu] %c range:" 620 " %010llx-%010llx size: %06llx\n", 621 (u_longlong_t)(offset / sizeof (entry)), 622 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 623 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 624 mapshift) + sm->sm_start), 625 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 626 mapshift) + sm->sm_start + 627 (SM_RUN_DECODE(entry) << mapshift)), 628 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 629 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 630 alloc += SM_RUN_DECODE(entry) << mapshift; 631 else 632 alloc -= SM_RUN_DECODE(entry) << mapshift; 633 } 634 } 635 if (alloc != space_map_allocated(sm)) { 636 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 637 "with space map summary (%llu)\n", 638 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 639 } 640} 641 642static void 643dump_metaslab_stats(metaslab_t *msp) 644{ 645 char maxbuf[32]; 646 range_tree_t *rt = msp->ms_tree; 647 avl_tree_t *t = &msp->ms_size_tree; 648 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 649 650 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 651 652 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 653 "segments", avl_numnodes(t), "maxsize", maxbuf, 654 "freepct", free_pct); 655 (void) printf("\tIn-memory histogram:\n"); 656 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 657} 658 659static void 660dump_metaslab(metaslab_t *msp) 661{ 662 vdev_t *vd = msp->ms_group->mg_vd; 663 spa_t *spa = vd->vdev_spa; 664 space_map_t *sm = msp->ms_sm; 665 char freebuf[32]; 666 667 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 668 669 (void) printf( 670 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 671 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 672 (u_longlong_t)space_map_object(sm), freebuf); 673 674 if (dump_opt['m'] > 2 && !dump_opt['L']) { 675 mutex_enter(&msp->ms_lock); 676 metaslab_load_wait(msp); 677 if (!msp->ms_loaded) { 678 VERIFY0(metaslab_load(msp)); 679 range_tree_stat_verify(msp->ms_tree); 680 } 681 dump_metaslab_stats(msp); 682 metaslab_unload(msp); 683 mutex_exit(&msp->ms_lock); 684 } 685 686 if (dump_opt['m'] > 1 && sm != NULL && 687 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 688 /* 689 * The space map histogram represents free space in chunks 690 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 691 */ 692 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 693 (u_longlong_t)msp->ms_fragmentation); 694 dump_histogram(sm->sm_phys->smp_histogram, 695 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 696 } 697 698 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 699 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 700 701 mutex_enter(&msp->ms_lock); 702 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 703 mutex_exit(&msp->ms_lock); 704 } 705} 706 707static void 708print_vdev_metaslab_header(vdev_t *vd) 709{ 710 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 711 (u_longlong_t)vd->vdev_id, 712 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 713 "offset", "spacemap", "free"); 714 (void) printf("\t%15s %19s %15s %10s\n", 715 "---------------", "-------------------", 716 "---------------", "-------------"); 717} 718 719static void 720dump_metaslab_groups(spa_t *spa) 721{ 722 vdev_t *rvd = spa->spa_root_vdev; 723 metaslab_class_t *mc = spa_normal_class(spa); 724 uint64_t fragmentation; 725 726 metaslab_class_histogram_verify(mc); 727 728 for (int c = 0; c < rvd->vdev_children; c++) { 729 vdev_t *tvd = rvd->vdev_child[c]; 730 metaslab_group_t *mg = tvd->vdev_mg; 731 732 if (mg->mg_class != mc) 733 continue; 734 735 metaslab_group_histogram_verify(mg); 736 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 737 738 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 739 "fragmentation", 740 (u_longlong_t)tvd->vdev_id, 741 (u_longlong_t)tvd->vdev_ms_count); 742 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 743 (void) printf("%3s\n", "-"); 744 } else { 745 (void) printf("%3llu%%\n", 746 (u_longlong_t)mg->mg_fragmentation); 747 } 748 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 749 } 750 751 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 752 fragmentation = metaslab_class_fragmentation(mc); 753 if (fragmentation == ZFS_FRAG_INVALID) 754 (void) printf("\t%3s\n", "-"); 755 else 756 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 757 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 758} 759 760static void 761dump_metaslabs(spa_t *spa) 762{ 763 vdev_t *vd, *rvd = spa->spa_root_vdev; 764 uint64_t m, c = 0, children = rvd->vdev_children; 765 766 (void) printf("\nMetaslabs:\n"); 767 768 if (!dump_opt['d'] && zopt_objects > 0) { 769 c = zopt_object[0]; 770 771 if (c >= children) 772 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 773 774 if (zopt_objects > 1) { 775 vd = rvd->vdev_child[c]; 776 print_vdev_metaslab_header(vd); 777 778 for (m = 1; m < zopt_objects; m++) { 779 if (zopt_object[m] < vd->vdev_ms_count) 780 dump_metaslab( 781 vd->vdev_ms[zopt_object[m]]); 782 else 783 (void) fprintf(stderr, "bad metaslab " 784 "number %llu\n", 785 (u_longlong_t)zopt_object[m]); 786 } 787 (void) printf("\n"); 788 return; 789 } 790 children = c + 1; 791 } 792 for (; c < children; c++) { 793 vd = rvd->vdev_child[c]; 794 print_vdev_metaslab_header(vd); 795 796 for (m = 0; m < vd->vdev_ms_count; m++) 797 dump_metaslab(vd->vdev_ms[m]); 798 (void) printf("\n"); 799 } 800} 801 802static void 803dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 804{ 805 const ddt_phys_t *ddp = dde->dde_phys; 806 const ddt_key_t *ddk = &dde->dde_key; 807 char *types[4] = { "ditto", "single", "double", "triple" }; 808 char blkbuf[BP_SPRINTF_LEN]; 809 blkptr_t blk; 810 811 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 812 if (ddp->ddp_phys_birth == 0) 813 continue; 814 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 815 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 816 (void) printf("index %llx refcnt %llu %s %s\n", 817 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 818 types[p], blkbuf); 819 } 820} 821 822static void 823dump_dedup_ratio(const ddt_stat_t *dds) 824{ 825 double rL, rP, rD, D, dedup, compress, copies; 826 827 if (dds->dds_blocks == 0) 828 return; 829 830 rL = (double)dds->dds_ref_lsize; 831 rP = (double)dds->dds_ref_psize; 832 rD = (double)dds->dds_ref_dsize; 833 D = (double)dds->dds_dsize; 834 835 dedup = rD / D; 836 compress = rL / rP; 837 copies = rD / rP; 838 839 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 840 "dedup * compress / copies = %.2f\n\n", 841 dedup, compress, copies, dedup * compress / copies); 842} 843 844static void 845dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 846{ 847 char name[DDT_NAMELEN]; 848 ddt_entry_t dde; 849 uint64_t walk = 0; 850 dmu_object_info_t doi; 851 uint64_t count, dspace, mspace; 852 int error; 853 854 error = ddt_object_info(ddt, type, class, &doi); 855 856 if (error == ENOENT) 857 return; 858 ASSERT(error == 0); 859 860 error = ddt_object_count(ddt, type, class, &count); 861 ASSERT(error == 0); 862 if (count == 0) 863 return; 864 865 dspace = doi.doi_physical_blocks_512 << 9; 866 mspace = doi.doi_fill_count * doi.doi_data_block_size; 867 868 ddt_object_name(ddt, type, class, name); 869 870 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 871 name, 872 (u_longlong_t)count, 873 (u_longlong_t)(dspace / count), 874 (u_longlong_t)(mspace / count)); 875 876 if (dump_opt['D'] < 3) 877 return; 878 879 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 880 881 if (dump_opt['D'] < 4) 882 return; 883 884 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 885 return; 886 887 (void) printf("%s contents:\n\n", name); 888 889 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 890 dump_dde(ddt, &dde, walk); 891 892 ASSERT(error == ENOENT); 893 894 (void) printf("\n"); 895} 896 897static void 898dump_all_ddts(spa_t *spa) 899{ 900 ddt_histogram_t ddh_total = { 0 }; 901 ddt_stat_t dds_total = { 0 }; 902 903 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 904 ddt_t *ddt = spa->spa_ddt[c]; 905 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 906 for (enum ddt_class class = 0; class < DDT_CLASSES; 907 class++) { 908 dump_ddt(ddt, type, class); 909 } 910 } 911 } 912 913 ddt_get_dedup_stats(spa, &dds_total); 914 915 if (dds_total.dds_blocks == 0) { 916 (void) printf("All DDTs are empty\n"); 917 return; 918 } 919 920 (void) printf("\n"); 921 922 if (dump_opt['D'] > 1) { 923 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 924 ddt_get_dedup_histogram(spa, &ddh_total); 925 zpool_dump_ddt(&dds_total, &ddh_total); 926 } 927 928 dump_dedup_ratio(&dds_total); 929} 930 931static void 932dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 933{ 934 char *prefix = arg; 935 936 (void) printf("%s [%llu,%llu) length %llu\n", 937 prefix, 938 (u_longlong_t)start, 939 (u_longlong_t)(start + size), 940 (u_longlong_t)(size)); 941} 942 943static void 944dump_dtl(vdev_t *vd, int indent) 945{ 946 spa_t *spa = vd->vdev_spa; 947 boolean_t required; 948 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 949 char prefix[256]; 950 951 spa_vdev_state_enter(spa, SCL_NONE); 952 required = vdev_dtl_required(vd); 953 (void) spa_vdev_state_exit(spa, NULL, 0); 954 955 if (indent == 0) 956 (void) printf("\nDirty time logs:\n\n"); 957 958 (void) printf("\t%*s%s [%s]\n", indent, "", 959 vd->vdev_path ? vd->vdev_path : 960 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 961 required ? "DTL-required" : "DTL-expendable"); 962 963 for (int t = 0; t < DTL_TYPES; t++) { 964 range_tree_t *rt = vd->vdev_dtl[t]; 965 if (range_tree_space(rt) == 0) 966 continue; 967 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 968 indent + 2, "", name[t]); 969 mutex_enter(rt->rt_lock); 970 range_tree_walk(rt, dump_dtl_seg, prefix); 971 mutex_exit(rt->rt_lock); 972 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 973 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 974 } 975 976 for (int c = 0; c < vd->vdev_children; c++) 977 dump_dtl(vd->vdev_child[c], indent + 4); 978} 979 980/* from spa_history.c: spa_history_create_obj() */ 981#define HIS_BUF_LEN_DEF (128 << 10) 982#define HIS_BUF_LEN_MAX (1 << 30) 983 984static void 985dump_history(spa_t *spa) 986{ 987 nvlist_t **events = NULL; 988 char *buf = NULL; 989 uint64_t bufsize = HIS_BUF_LEN_DEF; 990 uint64_t resid, len, off = 0; 991 uint_t num = 0; 992 int error; 993 time_t tsec; 994 struct tm t; 995 char tbuf[30]; 996 char internalstr[MAXPATHLEN]; 997 998 if ((buf = malloc(bufsize)) == NULL) 999 (void) fprintf(stderr, "Unable to read history: " 1000 "out of memory\n"); 1001 do { 1002 len = bufsize; 1003 1004 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1005 (void) fprintf(stderr, "Unable to read history: " 1006 "error %d\n", error); 1007 return; 1008 } 1009 1010 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1011 break; 1012 off -= resid; 1013 1014 /* 1015 * If the history block is too big, double the buffer 1016 * size and try again. 1017 */ 1018 if (resid == len) { 1019 free(buf); 1020 buf = NULL; 1021 1022 bufsize <<= 1; 1023 if ((bufsize >= HIS_BUF_LEN_MAX) || 1024 ((buf = malloc(bufsize)) == NULL)) { 1025 (void) fprintf(stderr, "Unable to read history: " 1026 "out of memory\n"); 1027 return; 1028 } 1029 } 1030 } while (len != 0); 1031 free(buf); 1032 1033 (void) printf("\nHistory:\n"); 1034 for (int i = 0; i < num; i++) { 1035 uint64_t time, txg, ievent; 1036 char *cmd, *intstr; 1037 boolean_t printed = B_FALSE; 1038 1039 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1040 &time) != 0) 1041 goto next; 1042 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1043 &cmd) != 0) { 1044 if (nvlist_lookup_uint64(events[i], 1045 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1046 goto next; 1047 verify(nvlist_lookup_uint64(events[i], 1048 ZPOOL_HIST_TXG, &txg) == 0); 1049 verify(nvlist_lookup_string(events[i], 1050 ZPOOL_HIST_INT_STR, &intstr) == 0); 1051 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1052 goto next; 1053 1054 (void) snprintf(internalstr, 1055 sizeof (internalstr), 1056 "[internal %s txg:%lld] %s", 1057 zfs_history_event_names[ievent], txg, 1058 intstr); 1059 cmd = internalstr; 1060 } 1061 tsec = time; 1062 (void) localtime_r(&tsec, &t); 1063 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1064 (void) printf("%s %s\n", tbuf, cmd); 1065 printed = B_TRUE; 1066 1067next: 1068 if (dump_opt['h'] > 1) { 1069 if (!printed) 1070 (void) printf("unrecognized record:\n"); 1071 dump_nvlist(events[i], 2); 1072 } 1073 } 1074} 1075 1076/*ARGSUSED*/ 1077static void 1078dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1079{ 1080} 1081 1082static uint64_t 1083blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1084 const zbookmark_phys_t *zb) 1085{ 1086 if (dnp == NULL) { 1087 ASSERT(zb->zb_level < 0); 1088 if (zb->zb_object == 0) 1089 return (zb->zb_blkid); 1090 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1091 } 1092 1093 ASSERT(zb->zb_level >= 0); 1094 1095 return ((zb->zb_blkid << 1096 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1097 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1098} 1099 1100static void 1101snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1102{ 1103 const dva_t *dva = bp->blk_dva; 1104 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1105 1106 if (dump_opt['b'] >= 6) { 1107 snprintf_blkptr(blkbuf, buflen, bp); 1108 return; 1109 } 1110 1111 if (BP_IS_EMBEDDED(bp)) { 1112 (void) sprintf(blkbuf, 1113 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1114 (int)BPE_GET_ETYPE(bp), 1115 (u_longlong_t)BPE_GET_LSIZE(bp), 1116 (u_longlong_t)BPE_GET_PSIZE(bp), 1117 (u_longlong_t)bp->blk_birth); 1118 return; 1119 } 1120 1121 blkbuf[0] = '\0'; 1122 for (int i = 0; i < ndvas; i++) 1123 (void) snprintf(blkbuf + strlen(blkbuf), 1124 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1125 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1126 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1127 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1128 1129 if (BP_IS_HOLE(bp)) { 1130 (void) snprintf(blkbuf + strlen(blkbuf), 1131 buflen - strlen(blkbuf), "B=%llu", 1132 (u_longlong_t)bp->blk_birth); 1133 } else { 1134 (void) snprintf(blkbuf + strlen(blkbuf), 1135 buflen - strlen(blkbuf), 1136 "%llxL/%llxP F=%llu B=%llu/%llu", 1137 (u_longlong_t)BP_GET_LSIZE(bp), 1138 (u_longlong_t)BP_GET_PSIZE(bp), 1139 (u_longlong_t)BP_GET_FILL(bp), 1140 (u_longlong_t)bp->blk_birth, 1141 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1142 } 1143} 1144 1145static void 1146print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1147 const dnode_phys_t *dnp) 1148{ 1149 char blkbuf[BP_SPRINTF_LEN]; 1150 int l; 1151 1152 if (!BP_IS_EMBEDDED(bp)) { 1153 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1154 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1155 } 1156 1157 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1158 1159 ASSERT(zb->zb_level >= 0); 1160 1161 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1162 if (l == zb->zb_level) { 1163 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1164 } else { 1165 (void) printf(" "); 1166 } 1167 } 1168 1169 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1170 (void) printf("%s\n", blkbuf); 1171} 1172 1173static int 1174visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1175 blkptr_t *bp, const zbookmark_phys_t *zb) 1176{ 1177 int err = 0; 1178 1179 if (bp->blk_birth == 0) 1180 return (0); 1181 1182 print_indirect(bp, zb, dnp); 1183 1184 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1185 uint32_t flags = ARC_WAIT; 1186 int i; 1187 blkptr_t *cbp; 1188 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1189 arc_buf_t *buf; 1190 uint64_t fill = 0; 1191 1192 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1193 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1194 if (err) 1195 return (err); 1196 ASSERT(buf->b_data); 1197 1198 /* recursively visit blocks below this */ 1199 cbp = buf->b_data; 1200 for (i = 0; i < epb; i++, cbp++) { 1201 zbookmark_phys_t czb; 1202 1203 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1204 zb->zb_level - 1, 1205 zb->zb_blkid * epb + i); 1206 err = visit_indirect(spa, dnp, cbp, &czb); 1207 if (err) 1208 break; 1209 fill += BP_GET_FILL(cbp); 1210 } 1211 if (!err) 1212 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1213 (void) arc_buf_remove_ref(buf, &buf); 1214 } 1215 1216 return (err); 1217} 1218 1219/*ARGSUSED*/ 1220static void 1221dump_indirect(dnode_t *dn) 1222{ 1223 dnode_phys_t *dnp = dn->dn_phys; 1224 int j; 1225 zbookmark_phys_t czb; 1226 1227 (void) printf("Indirect blocks:\n"); 1228 1229 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1230 dn->dn_object, dnp->dn_nlevels - 1, 0); 1231 for (j = 0; j < dnp->dn_nblkptr; j++) { 1232 czb.zb_blkid = j; 1233 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1234 &dnp->dn_blkptr[j], &czb); 1235 } 1236 1237 (void) printf("\n"); 1238} 1239 1240/*ARGSUSED*/ 1241static void 1242dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1243{ 1244 dsl_dir_phys_t *dd = data; 1245 time_t crtime; 1246 char nice[32]; 1247 1248 if (dd == NULL) 1249 return; 1250 1251 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1252 1253 crtime = dd->dd_creation_time; 1254 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1255 (void) printf("\t\thead_dataset_obj = %llu\n", 1256 (u_longlong_t)dd->dd_head_dataset_obj); 1257 (void) printf("\t\tparent_dir_obj = %llu\n", 1258 (u_longlong_t)dd->dd_parent_obj); 1259 (void) printf("\t\torigin_obj = %llu\n", 1260 (u_longlong_t)dd->dd_origin_obj); 1261 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1262 (u_longlong_t)dd->dd_child_dir_zapobj); 1263 zdb_nicenum(dd->dd_used_bytes, nice); 1264 (void) printf("\t\tused_bytes = %s\n", nice); 1265 zdb_nicenum(dd->dd_compressed_bytes, nice); 1266 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1267 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1268 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1269 zdb_nicenum(dd->dd_quota, nice); 1270 (void) printf("\t\tquota = %s\n", nice); 1271 zdb_nicenum(dd->dd_reserved, nice); 1272 (void) printf("\t\treserved = %s\n", nice); 1273 (void) printf("\t\tprops_zapobj = %llu\n", 1274 (u_longlong_t)dd->dd_props_zapobj); 1275 (void) printf("\t\tdeleg_zapobj = %llu\n", 1276 (u_longlong_t)dd->dd_deleg_zapobj); 1277 (void) printf("\t\tflags = %llx\n", 1278 (u_longlong_t)dd->dd_flags); 1279 1280#define DO(which) \ 1281 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1282 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1283 DO(HEAD); 1284 DO(SNAP); 1285 DO(CHILD); 1286 DO(CHILD_RSRV); 1287 DO(REFRSRV); 1288#undef DO 1289} 1290 1291/*ARGSUSED*/ 1292static void 1293dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1294{ 1295 dsl_dataset_phys_t *ds = data; 1296 time_t crtime; 1297 char used[32], compressed[32], uncompressed[32], unique[32]; 1298 char blkbuf[BP_SPRINTF_LEN]; 1299 1300 if (ds == NULL) 1301 return; 1302 1303 ASSERT(size == sizeof (*ds)); 1304 crtime = ds->ds_creation_time; 1305 zdb_nicenum(ds->ds_referenced_bytes, used); 1306 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1307 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1308 zdb_nicenum(ds->ds_unique_bytes, unique); 1309 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1310 1311 (void) printf("\t\tdir_obj = %llu\n", 1312 (u_longlong_t)ds->ds_dir_obj); 1313 (void) printf("\t\tprev_snap_obj = %llu\n", 1314 (u_longlong_t)ds->ds_prev_snap_obj); 1315 (void) printf("\t\tprev_snap_txg = %llu\n", 1316 (u_longlong_t)ds->ds_prev_snap_txg); 1317 (void) printf("\t\tnext_snap_obj = %llu\n", 1318 (u_longlong_t)ds->ds_next_snap_obj); 1319 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1320 (u_longlong_t)ds->ds_snapnames_zapobj); 1321 (void) printf("\t\tnum_children = %llu\n", 1322 (u_longlong_t)ds->ds_num_children); 1323 (void) printf("\t\tuserrefs_obj = %llu\n", 1324 (u_longlong_t)ds->ds_userrefs_obj); 1325 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1326 (void) printf("\t\tcreation_txg = %llu\n", 1327 (u_longlong_t)ds->ds_creation_txg); 1328 (void) printf("\t\tdeadlist_obj = %llu\n", 1329 (u_longlong_t)ds->ds_deadlist_obj); 1330 (void) printf("\t\tused_bytes = %s\n", used); 1331 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1332 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1333 (void) printf("\t\tunique = %s\n", unique); 1334 (void) printf("\t\tfsid_guid = %llu\n", 1335 (u_longlong_t)ds->ds_fsid_guid); 1336 (void) printf("\t\tguid = %llu\n", 1337 (u_longlong_t)ds->ds_guid); 1338 (void) printf("\t\tflags = %llx\n", 1339 (u_longlong_t)ds->ds_flags); 1340 (void) printf("\t\tnext_clones_obj = %llu\n", 1341 (u_longlong_t)ds->ds_next_clones_obj); 1342 (void) printf("\t\tprops_obj = %llu\n", 1343 (u_longlong_t)ds->ds_props_obj); 1344 (void) printf("\t\tbp = %s\n", blkbuf); 1345} 1346 1347/* ARGSUSED */ 1348static int 1349dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1350{ 1351 char blkbuf[BP_SPRINTF_LEN]; 1352 1353 if (bp->blk_birth != 0) { 1354 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1355 (void) printf("\t%s\n", blkbuf); 1356 } 1357 return (0); 1358} 1359 1360static void 1361dump_bptree(objset_t *os, uint64_t obj, char *name) 1362{ 1363 char bytes[32]; 1364 bptree_phys_t *bt; 1365 dmu_buf_t *db; 1366 1367 if (dump_opt['d'] < 3) 1368 return; 1369 1370 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1371 bt = db->db_data; 1372 zdb_nicenum(bt->bt_bytes, bytes); 1373 (void) printf("\n %s: %llu datasets, %s\n", 1374 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1375 dmu_buf_rele(db, FTAG); 1376 1377 if (dump_opt['d'] < 5) 1378 return; 1379 1380 (void) printf("\n"); 1381 1382 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1383} 1384 1385/* ARGSUSED */ 1386static int 1387dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1388{ 1389 char blkbuf[BP_SPRINTF_LEN]; 1390 1391 ASSERT(bp->blk_birth != 0); 1392 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1393 (void) printf("\t%s\n", blkbuf); 1394 return (0); 1395} 1396 1397static void 1398dump_bpobj(bpobj_t *bpo, char *name, int indent) 1399{ 1400 char bytes[32]; 1401 char comp[32]; 1402 char uncomp[32]; 1403 1404 if (dump_opt['d'] < 3) 1405 return; 1406 1407 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1408 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1409 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1410 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1411 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1412 "%llu subobjs, %s (%s/%s comp)\n", 1413 indent * 8, name, 1414 (u_longlong_t)bpo->bpo_object, 1415 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1416 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1417 bytes, comp, uncomp); 1418 1419 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1420 uint64_t subobj; 1421 bpobj_t subbpo; 1422 int error; 1423 VERIFY0(dmu_read(bpo->bpo_os, 1424 bpo->bpo_phys->bpo_subobjs, 1425 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1426 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1427 if (error != 0) { 1428 (void) printf("ERROR %u while trying to open " 1429 "subobj id %llu\n", 1430 error, (u_longlong_t)subobj); 1431 continue; 1432 } 1433 dump_bpobj(&subbpo, "subobj", indent + 1); 1434 bpobj_close(&subbpo); 1435 } 1436 } else { 1437 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1438 indent * 8, name, 1439 (u_longlong_t)bpo->bpo_object, 1440 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1441 bytes); 1442 } 1443 1444 if (dump_opt['d'] < 5) 1445 return; 1446 1447 1448 if (indent == 0) { 1449 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1450 (void) printf("\n"); 1451 } 1452} 1453 1454static void 1455dump_deadlist(dsl_deadlist_t *dl) 1456{ 1457 dsl_deadlist_entry_t *dle; 1458 uint64_t unused; 1459 char bytes[32]; 1460 char comp[32]; 1461 char uncomp[32]; 1462 1463 if (dump_opt['d'] < 3) 1464 return; 1465 1466 if (dl->dl_oldfmt) { 1467 dump_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1468 return; 1469 } 1470 1471 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1472 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1473 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1474 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1475 bytes, comp, uncomp); 1476 1477 if (dump_opt['d'] < 4) 1478 return; 1479 1480 (void) printf("\n"); 1481 1482 /* force the tree to be loaded */ 1483 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1484 1485 for (dle = avl_first(&dl->dl_tree); dle; 1486 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1487 if (dump_opt['d'] >= 5) { 1488 char buf[128]; 1489 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1490 (longlong_t)dle->dle_mintxg, 1491 (longlong_t)dle->dle_bpobj.bpo_object); 1492 1493 dump_bpobj(&dle->dle_bpobj, buf, 0); 1494 } else { 1495 (void) printf("mintxg %llu -> obj %llu\n", 1496 (longlong_t)dle->dle_mintxg, 1497 (longlong_t)dle->dle_bpobj.bpo_object); 1498 1499 } 1500 } 1501} 1502 1503static avl_tree_t idx_tree; 1504static avl_tree_t domain_tree; 1505static boolean_t fuid_table_loaded; 1506static boolean_t sa_loaded; 1507sa_attr_type_t *sa_attr_table; 1508 1509static void 1510fuid_table_destroy() 1511{ 1512 if (fuid_table_loaded) { 1513 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1514 fuid_table_loaded = B_FALSE; 1515 } 1516} 1517 1518/* 1519 * print uid or gid information. 1520 * For normal POSIX id just the id is printed in decimal format. 1521 * For CIFS files with FUID the fuid is printed in hex followed by 1522 * the domain-rid string. 1523 */ 1524static void 1525print_idstr(uint64_t id, const char *id_type) 1526{ 1527 if (FUID_INDEX(id)) { 1528 char *domain; 1529 1530 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1531 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1532 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1533 } else { 1534 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1535 } 1536 1537} 1538 1539static void 1540dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1541{ 1542 uint32_t uid_idx, gid_idx; 1543 1544 uid_idx = FUID_INDEX(uid); 1545 gid_idx = FUID_INDEX(gid); 1546 1547 /* Load domain table, if not already loaded */ 1548 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1549 uint64_t fuid_obj; 1550 1551 /* first find the fuid object. It lives in the master node */ 1552 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1553 8, 1, &fuid_obj) == 0); 1554 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1555 (void) zfs_fuid_table_load(os, fuid_obj, 1556 &idx_tree, &domain_tree); 1557 fuid_table_loaded = B_TRUE; 1558 } 1559 1560 print_idstr(uid, "uid"); 1561 print_idstr(gid, "gid"); 1562} 1563 1564/*ARGSUSED*/ 1565static void 1566dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1567{ 1568 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1569 sa_handle_t *hdl; 1570 uint64_t xattr, rdev, gen; 1571 uint64_t uid, gid, mode, fsize, parent, links; 1572 uint64_t pflags; 1573 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1574 time_t z_crtime, z_atime, z_mtime, z_ctime; 1575 sa_bulk_attr_t bulk[12]; 1576 int idx = 0; 1577 int error; 1578 1579 if (!sa_loaded) { 1580 uint64_t sa_attrs = 0; 1581 uint64_t version; 1582 1583 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1584 8, 1, &version) == 0); 1585 if (version >= ZPL_VERSION_SA) { 1586 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1587 8, 1, &sa_attrs) == 0); 1588 } 1589 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1590 ZPL_END, &sa_attr_table)) != 0) { 1591 (void) printf("sa_setup failed errno %d, can't " 1592 "display znode contents\n", error); 1593 return; 1594 } 1595 sa_loaded = B_TRUE; 1596 } 1597 1598 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1599 (void) printf("Failed to get handle for SA znode\n"); 1600 return; 1601 } 1602 1603 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1604 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1605 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1606 &links, 8); 1607 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1608 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1609 &mode, 8); 1610 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1611 NULL, &parent, 8); 1612 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1613 &fsize, 8); 1614 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1615 acctm, 16); 1616 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1617 modtm, 16); 1618 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1619 crtm, 16); 1620 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1621 chgtm, 16); 1622 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1623 &pflags, 8); 1624 1625 if (sa_bulk_lookup(hdl, bulk, idx)) { 1626 (void) sa_handle_destroy(hdl); 1627 return; 1628 } 1629 1630 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1631 if (error != 0) { 1632 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1633 (u_longlong_t)object); 1634 } 1635 if (dump_opt['d'] < 3) { 1636 (void) printf("\t%s\n", path); 1637 (void) sa_handle_destroy(hdl); 1638 return; 1639 } 1640 1641 z_crtime = (time_t)crtm[0]; 1642 z_atime = (time_t)acctm[0]; 1643 z_mtime = (time_t)modtm[0]; 1644 z_ctime = (time_t)chgtm[0]; 1645 1646 (void) printf("\tpath %s\n", path); 1647 dump_uidgid(os, uid, gid); 1648 (void) printf("\tatime %s", ctime(&z_atime)); 1649 (void) printf("\tmtime %s", ctime(&z_mtime)); 1650 (void) printf("\tctime %s", ctime(&z_ctime)); 1651 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1652 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1653 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1654 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1655 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1656 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1657 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1658 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1659 sizeof (uint64_t)) == 0) 1660 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1661 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1662 sizeof (uint64_t)) == 0) 1663 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1664 sa_handle_destroy(hdl); 1665} 1666 1667/*ARGSUSED*/ 1668static void 1669dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1670{ 1671} 1672 1673/*ARGSUSED*/ 1674static void 1675dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1676{ 1677} 1678 1679static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1680 dump_none, /* unallocated */ 1681 dump_zap, /* object directory */ 1682 dump_uint64, /* object array */ 1683 dump_none, /* packed nvlist */ 1684 dump_packed_nvlist, /* packed nvlist size */ 1685 dump_none, /* bplist */ 1686 dump_none, /* bplist header */ 1687 dump_none, /* SPA space map header */ 1688 dump_none, /* SPA space map */ 1689 dump_none, /* ZIL intent log */ 1690 dump_dnode, /* DMU dnode */ 1691 dump_dmu_objset, /* DMU objset */ 1692 dump_dsl_dir, /* DSL directory */ 1693 dump_zap, /* DSL directory child map */ 1694 dump_zap, /* DSL dataset snap map */ 1695 dump_zap, /* DSL props */ 1696 dump_dsl_dataset, /* DSL dataset */ 1697 dump_znode, /* ZFS znode */ 1698 dump_acl, /* ZFS V0 ACL */ 1699 dump_uint8, /* ZFS plain file */ 1700 dump_zpldir, /* ZFS directory */ 1701 dump_zap, /* ZFS master node */ 1702 dump_zap, /* ZFS delete queue */ 1703 dump_uint8, /* zvol object */ 1704 dump_zap, /* zvol prop */ 1705 dump_uint8, /* other uint8[] */ 1706 dump_uint64, /* other uint64[] */ 1707 dump_zap, /* other ZAP */ 1708 dump_zap, /* persistent error log */ 1709 dump_uint8, /* SPA history */ 1710 dump_history_offsets, /* SPA history offsets */ 1711 dump_zap, /* Pool properties */ 1712 dump_zap, /* DSL permissions */ 1713 dump_acl, /* ZFS ACL */ 1714 dump_uint8, /* ZFS SYSACL */ 1715 dump_none, /* FUID nvlist */ 1716 dump_packed_nvlist, /* FUID nvlist size */ 1717 dump_zap, /* DSL dataset next clones */ 1718 dump_zap, /* DSL scrub queue */ 1719 dump_zap, /* ZFS user/group used */ 1720 dump_zap, /* ZFS user/group quota */ 1721 dump_zap, /* snapshot refcount tags */ 1722 dump_ddt_zap, /* DDT ZAP object */ 1723 dump_zap, /* DDT statistics */ 1724 dump_znode, /* SA object */ 1725 dump_zap, /* SA Master Node */ 1726 dump_sa_attrs, /* SA attribute registration */ 1727 dump_sa_layouts, /* SA attribute layouts */ 1728 dump_zap, /* DSL scrub translations */ 1729 dump_none, /* fake dedup BP */ 1730 dump_zap, /* deadlist */ 1731 dump_none, /* deadlist hdr */ 1732 dump_zap, /* dsl clones */ 1733 dump_none, /* bpobj subobjs */ 1734 dump_unknown, /* Unknown type, must be last */ 1735}; 1736 1737static void 1738dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1739{ 1740 dmu_buf_t *db = NULL; 1741 dmu_object_info_t doi; 1742 dnode_t *dn; 1743 void *bonus = NULL; 1744 size_t bsize = 0; 1745 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1746 char bonus_size[32]; 1747 char aux[50]; 1748 int error; 1749 1750 if (*print_header) { 1751 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1752 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1753 "%full", "type"); 1754 *print_header = 0; 1755 } 1756 1757 if (object == 0) { 1758 dn = DMU_META_DNODE(os); 1759 } else { 1760 error = dmu_bonus_hold(os, object, FTAG, &db); 1761 if (error) 1762 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1763 object, error); 1764 bonus = db->db_data; 1765 bsize = db->db_size; 1766 dn = DB_DNODE((dmu_buf_impl_t *)db); 1767 } 1768 dmu_object_info_from_dnode(dn, &doi); 1769 1770 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1771 zdb_nicenum(doi.doi_data_block_size, dblk); 1772 zdb_nicenum(doi.doi_max_offset, lsize); 1773 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1774 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1775 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1776 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1777 doi.doi_max_offset); 1778 1779 aux[0] = '\0'; 1780 1781 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1782 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1783 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1784 } 1785 1786 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1787 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1788 ZDB_COMPRESS_NAME(doi.doi_compress)); 1789 } 1790 1791 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1792 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1793 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1794 1795 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1796 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1797 "", "", "", "", "", bonus_size, "bonus", 1798 ZDB_OT_NAME(doi.doi_bonus_type)); 1799 } 1800 1801 if (verbosity >= 4) { 1802 (void) printf("\tdnode flags: %s%s%s\n", 1803 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1804 "USED_BYTES " : "", 1805 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1806 "USERUSED_ACCOUNTED " : "", 1807 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1808 "SPILL_BLKPTR" : ""); 1809 (void) printf("\tdnode maxblkid: %llu\n", 1810 (longlong_t)dn->dn_phys->dn_maxblkid); 1811 1812 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1813 bonus, bsize); 1814 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1815 *print_header = 1; 1816 } 1817 1818 if (verbosity >= 5) 1819 dump_indirect(dn); 1820 1821 if (verbosity >= 5) { 1822 /* 1823 * Report the list of segments that comprise the object. 1824 */ 1825 uint64_t start = 0; 1826 uint64_t end; 1827 uint64_t blkfill = 1; 1828 int minlvl = 1; 1829 1830 if (dn->dn_type == DMU_OT_DNODE) { 1831 minlvl = 0; 1832 blkfill = DNODES_PER_BLOCK; 1833 } 1834 1835 for (;;) { 1836 char segsize[32]; 1837 error = dnode_next_offset(dn, 1838 0, &start, minlvl, blkfill, 0); 1839 if (error) 1840 break; 1841 end = start; 1842 error = dnode_next_offset(dn, 1843 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1844 zdb_nicenum(end - start, segsize); 1845 (void) printf("\t\tsegment [%016llx, %016llx)" 1846 " size %5s\n", (u_longlong_t)start, 1847 (u_longlong_t)end, segsize); 1848 if (error) 1849 break; 1850 start = end; 1851 } 1852 } 1853 1854 if (db != NULL) 1855 dmu_buf_rele(db, FTAG); 1856} 1857 1858static char *objset_types[DMU_OST_NUMTYPES] = { 1859 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1860 1861static void 1862dump_dir(objset_t *os) 1863{ 1864 dmu_objset_stats_t dds; 1865 uint64_t object, object_count; 1866 uint64_t refdbytes, usedobjs, scratch; 1867 char numbuf[32]; 1868 char blkbuf[BP_SPRINTF_LEN + 20]; 1869 char osname[MAXNAMELEN]; 1870 char *type = "UNKNOWN"; 1871 int verbosity = dump_opt['d']; 1872 int print_header = 1; 1873 int i, error; 1874 1875 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1876 dmu_objset_fast_stat(os, &dds); 1877 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1878 1879 if (dds.dds_type < DMU_OST_NUMTYPES) 1880 type = objset_types[dds.dds_type]; 1881 1882 if (dds.dds_type == DMU_OST_META) { 1883 dds.dds_creation_txg = TXG_INITIAL; 1884 usedobjs = BP_GET_FILL(os->os_rootbp); 1885 refdbytes = os->os_spa->spa_dsl_pool-> 1886 dp_mos_dir->dd_phys->dd_used_bytes; 1887 } else { 1888 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1889 } 1890 1891 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1892 1893 zdb_nicenum(refdbytes, numbuf); 1894 1895 if (verbosity >= 4) { 1896 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1897 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1898 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1899 } else { 1900 blkbuf[0] = '\0'; 1901 } 1902 1903 dmu_objset_name(os, osname); 1904 1905 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1906 "%s, %llu objects%s\n", 1907 osname, type, (u_longlong_t)dmu_objset_id(os), 1908 (u_longlong_t)dds.dds_creation_txg, 1909 numbuf, (u_longlong_t)usedobjs, blkbuf); 1910 1911 if (zopt_objects != 0) { 1912 for (i = 0; i < zopt_objects; i++) 1913 dump_object(os, zopt_object[i], verbosity, 1914 &print_header); 1915 (void) printf("\n"); 1916 return; 1917 } 1918 1919 if (dump_opt['i'] != 0 || verbosity >= 2) 1920 dump_intent_log(dmu_objset_zil(os)); 1921 1922 if (dmu_objset_ds(os) != NULL) 1923 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1924 1925 if (verbosity < 2) 1926 return; 1927 1928 if (BP_IS_HOLE(os->os_rootbp)) 1929 return; 1930 1931 dump_object(os, 0, verbosity, &print_header); 1932 object_count = 0; 1933 if (DMU_USERUSED_DNODE(os) != NULL && 1934 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1935 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1936 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1937 } 1938 1939 object = 0; 1940 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1941 dump_object(os, object, verbosity, &print_header); 1942 object_count++; 1943 } 1944 1945 ASSERT3U(object_count, ==, usedobjs); 1946 1947 (void) printf("\n"); 1948 1949 if (error != ESRCH) { 1950 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1951 abort(); 1952 } 1953} 1954 1955static void 1956dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1957{ 1958 time_t timestamp = ub->ub_timestamp; 1959 1960 (void) printf(header ? header : ""); 1961 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1962 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1963 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1964 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1965 (void) printf("\ttimestamp = %llu UTC = %s", 1966 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1967 if (dump_opt['u'] >= 3) { 1968 char blkbuf[BP_SPRINTF_LEN]; 1969 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1970 (void) printf("\trootbp = %s\n", blkbuf); 1971 } 1972 (void) printf(footer ? footer : ""); 1973} 1974 1975static void 1976dump_config(spa_t *spa) 1977{ 1978 dmu_buf_t *db; 1979 size_t nvsize = 0; 1980 int error = 0; 1981 1982 1983 error = dmu_bonus_hold(spa->spa_meta_objset, 1984 spa->spa_config_object, FTAG, &db); 1985 1986 if (error == 0) { 1987 nvsize = *(uint64_t *)db->db_data; 1988 dmu_buf_rele(db, FTAG); 1989 1990 (void) printf("\nMOS Configuration:\n"); 1991 dump_packed_nvlist(spa->spa_meta_objset, 1992 spa->spa_config_object, (void *)&nvsize, 1); 1993 } else { 1994 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1995 (u_longlong_t)spa->spa_config_object, error); 1996 } 1997} 1998 1999static void 2000dump_cachefile(const char *cachefile) 2001{ 2002 int fd; 2003 struct stat64 statbuf; 2004 char *buf; 2005 nvlist_t *config; 2006 2007 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2008 (void) printf("cannot open '%s': %s\n", cachefile, 2009 strerror(errno)); 2010 exit(1); 2011 } 2012 2013 if (fstat64(fd, &statbuf) != 0) { 2014 (void) printf("failed to stat '%s': %s\n", cachefile, 2015 strerror(errno)); 2016 exit(1); 2017 } 2018 2019 if ((buf = malloc(statbuf.st_size)) == NULL) { 2020 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2021 (u_longlong_t)statbuf.st_size); 2022 exit(1); 2023 } 2024 2025 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2026 (void) fprintf(stderr, "failed to read %llu bytes\n", 2027 (u_longlong_t)statbuf.st_size); 2028 exit(1); 2029 } 2030 2031 (void) close(fd); 2032 2033 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2034 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2035 exit(1); 2036 } 2037 2038 free(buf); 2039 2040 dump_nvlist(config, 0); 2041 2042 nvlist_free(config); 2043} 2044 2045#define ZDB_MAX_UB_HEADER_SIZE 32 2046 2047static void 2048dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2049{ 2050 vdev_t vd; 2051 vdev_t *vdp = &vd; 2052 char header[ZDB_MAX_UB_HEADER_SIZE]; 2053 2054 vd.vdev_ashift = ashift; 2055 vdp->vdev_top = vdp; 2056 2057 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2058 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2059 uberblock_t *ub = (void *)((char *)lbl + uoff); 2060 2061 if (uberblock_verify(ub)) 2062 continue; 2063 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2064 "Uberblock[%d]\n", i); 2065 dump_uberblock(ub, header, ""); 2066 } 2067} 2068 2069static void 2070dump_label(const char *dev) 2071{ 2072 int fd; 2073 vdev_label_t label; 2074 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2075 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2076 struct stat64 statbuf; 2077 uint64_t psize, ashift; 2078 int len = strlen(dev) + 1; 2079 2080 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2081 len++; 2082 path = malloc(len); 2083 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2084 } else { 2085 path = strdup(dev); 2086 } 2087 2088 if ((fd = open64(path, O_RDONLY)) < 0) { 2089 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2090 free(path); 2091 exit(1); 2092 } 2093 2094 if (fstat64(fd, &statbuf) != 0) { 2095 (void) printf("failed to stat '%s': %s\n", path, 2096 strerror(errno)); 2097 free(path); 2098 (void) close(fd); 2099 exit(1); 2100 } 2101 2102 if (S_ISBLK(statbuf.st_mode)) { 2103 (void) printf("cannot use '%s': character device required\n", 2104 path); 2105 free(path); 2106 (void) close(fd); 2107 exit(1); 2108 } 2109 2110 psize = statbuf.st_size; 2111 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2112 2113 for (int l = 0; l < VDEV_LABELS; l++) { 2114 nvlist_t *config = NULL; 2115 2116 (void) printf("--------------------------------------------\n"); 2117 (void) printf("LABEL %d\n", l); 2118 (void) printf("--------------------------------------------\n"); 2119 2120 if (pread64(fd, &label, sizeof (label), 2121 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2122 (void) printf("failed to read label %d\n", l); 2123 continue; 2124 } 2125 2126 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2127 (void) printf("failed to unpack label %d\n", l); 2128 ashift = SPA_MINBLOCKSHIFT; 2129 } else { 2130 nvlist_t *vdev_tree = NULL; 2131 2132 dump_nvlist(config, 4); 2133 if ((nvlist_lookup_nvlist(config, 2134 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2135 (nvlist_lookup_uint64(vdev_tree, 2136 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2137 ashift = SPA_MINBLOCKSHIFT; 2138 nvlist_free(config); 2139 } 2140 if (dump_opt['u']) 2141 dump_label_uberblocks(&label, ashift); 2142 } 2143 2144 free(path); 2145 (void) close(fd); 2146} 2147 2148/*ARGSUSED*/ 2149static int 2150dump_one_dir(const char *dsname, void *arg) 2151{ 2152 int error; 2153 objset_t *os; 2154 2155 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2156 if (error) { 2157 (void) printf("Could not open %s, error %d\n", dsname, error); 2158 return (0); 2159 } 2160 dump_dir(os); 2161 dmu_objset_disown(os, FTAG); 2162 fuid_table_destroy(); 2163 sa_loaded = B_FALSE; 2164 return (0); 2165} 2166 2167/* 2168 * Block statistics. 2169 */ 2170#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2171typedef struct zdb_blkstats { 2172 uint64_t zb_asize; 2173 uint64_t zb_lsize; 2174 uint64_t zb_psize; 2175 uint64_t zb_count; 2176 uint64_t zb_gangs; 2177 uint64_t zb_ditto_samevdev; 2178 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2179} zdb_blkstats_t; 2180 2181/* 2182 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2183 */ 2184#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2185#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2186#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2187#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2188 2189static char *zdb_ot_extname[] = { 2190 "deferred free", 2191 "dedup ditto", 2192 "other", 2193 "Total", 2194}; 2195 2196#define ZB_TOTAL DN_MAX_LEVELS 2197 2198typedef struct zdb_cb { 2199 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2200 uint64_t zcb_dedup_asize; 2201 uint64_t zcb_dedup_blocks; 2202 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2203 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2204 [BPE_PAYLOAD_SIZE]; 2205 uint64_t zcb_start; 2206 uint64_t zcb_lastprint; 2207 uint64_t zcb_totalasize; 2208 uint64_t zcb_errors[256]; 2209 int zcb_readfails; 2210 int zcb_haderrors; 2211 spa_t *zcb_spa; 2212} zdb_cb_t; 2213 2214static void 2215zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2216 dmu_object_type_t type) 2217{ 2218 uint64_t refcnt = 0; 2219 2220 ASSERT(type < ZDB_OT_TOTAL); 2221 2222 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2223 return; 2224 2225 for (int i = 0; i < 4; i++) { 2226 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2227 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2228 int equal; 2229 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2230 2231 zb->zb_asize += BP_GET_ASIZE(bp); 2232 zb->zb_lsize += BP_GET_LSIZE(bp); 2233 zb->zb_psize += BP_GET_PSIZE(bp); 2234 zb->zb_count++; 2235 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2236 2237 zb->zb_gangs += BP_COUNT_GANG(bp); 2238 2239 switch (BP_GET_NDVAS(bp)) { 2240 case 2: 2241 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2242 DVA_GET_VDEV(&bp->blk_dva[1])) 2243 zb->zb_ditto_samevdev++; 2244 break; 2245 case 3: 2246 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2247 DVA_GET_VDEV(&bp->blk_dva[1])) + 2248 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2249 DVA_GET_VDEV(&bp->blk_dva[2])) + 2250 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2251 DVA_GET_VDEV(&bp->blk_dva[2])); 2252 if (equal != 0) 2253 zb->zb_ditto_samevdev++; 2254 break; 2255 } 2256 2257 } 2258 2259 if (BP_IS_EMBEDDED(bp)) { 2260 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2261 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2262 [BPE_GET_PSIZE(bp)]++; 2263 return; 2264 } 2265 2266 if (dump_opt['L']) 2267 return; 2268 2269 if (BP_GET_DEDUP(bp)) { 2270 ddt_t *ddt; 2271 ddt_entry_t *dde; 2272 2273 ddt = ddt_select(zcb->zcb_spa, bp); 2274 ddt_enter(ddt); 2275 dde = ddt_lookup(ddt, bp, B_FALSE); 2276 2277 if (dde == NULL) { 2278 refcnt = 0; 2279 } else { 2280 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2281 ddt_phys_decref(ddp); 2282 refcnt = ddp->ddp_refcnt; 2283 if (ddt_phys_total_refcnt(dde) == 0) 2284 ddt_remove(ddt, dde); 2285 } 2286 ddt_exit(ddt); 2287 } 2288 2289 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2290 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2291 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2292} 2293 2294/* ARGSUSED */ 2295static void 2296zdb_blkptr_done(zio_t *zio) 2297{ 2298 spa_t *spa = zio->io_spa; 2299 blkptr_t *bp = zio->io_bp; 2300 int ioerr = zio->io_error; 2301 zdb_cb_t *zcb = zio->io_private; 2302 zbookmark_phys_t *zb = &zio->io_bookmark; 2303 2304 zio_data_buf_free(zio->io_data, zio->io_size); 2305 2306 mutex_enter(&spa->spa_scrub_lock); 2307 spa->spa_scrub_inflight--; 2308 cv_broadcast(&spa->spa_scrub_io_cv); 2309 2310 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2311 char blkbuf[BP_SPRINTF_LEN]; 2312 2313 zcb->zcb_haderrors = 1; 2314 zcb->zcb_errors[ioerr]++; 2315 2316 if (dump_opt['b'] >= 2) 2317 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2318 else 2319 blkbuf[0] = '\0'; 2320 2321 (void) printf("zdb_blkptr_cb: " 2322 "Got error %d reading " 2323 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2324 ioerr, 2325 (u_longlong_t)zb->zb_objset, 2326 (u_longlong_t)zb->zb_object, 2327 (u_longlong_t)zb->zb_level, 2328 (u_longlong_t)zb->zb_blkid, 2329 blkbuf); 2330 } 2331 mutex_exit(&spa->spa_scrub_lock); 2332} 2333 2334/* ARGSUSED */ 2335static int 2336zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2337 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2338{ 2339 zdb_cb_t *zcb = arg; 2340 dmu_object_type_t type; 2341 boolean_t is_metadata; 2342 2343 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2344 char blkbuf[BP_SPRINTF_LEN]; 2345 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2346 (void) printf("objset %llu object %llu " 2347 "level %lld offset 0x%llx %s\n", 2348 (u_longlong_t)zb->zb_objset, 2349 (u_longlong_t)zb->zb_object, 2350 (longlong_t)zb->zb_level, 2351 (u_longlong_t)blkid2offset(dnp, bp, zb), 2352 blkbuf); 2353 } 2354 2355 if (BP_IS_HOLE(bp)) 2356 return (0); 2357 2358 type = BP_GET_TYPE(bp); 2359 2360 zdb_count_block(zcb, zilog, bp, 2361 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2362 2363 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2364 2365 if (!BP_IS_EMBEDDED(bp) && 2366 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2367 size_t size = BP_GET_PSIZE(bp); 2368 void *data = zio_data_buf_alloc(size); 2369 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2370 2371 /* If it's an intent log block, failure is expected. */ 2372 if (zb->zb_level == ZB_ZIL_LEVEL) 2373 flags |= ZIO_FLAG_SPECULATIVE; 2374 2375 mutex_enter(&spa->spa_scrub_lock); 2376 while (spa->spa_scrub_inflight > max_inflight) 2377 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2378 spa->spa_scrub_inflight++; 2379 mutex_exit(&spa->spa_scrub_lock); 2380 2381 zio_nowait(zio_read(NULL, spa, bp, data, size, 2382 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2383 } 2384 2385 zcb->zcb_readfails = 0; 2386 2387 if (dump_opt['b'] < 5 && 2388 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2389 uint64_t now = gethrtime(); 2390 char buf[10]; 2391 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2392 int kb_per_sec = 2393 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2394 int sec_remaining = 2395 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2396 2397 zfs_nicenum(bytes, buf, sizeof (buf)); 2398 (void) fprintf(stderr, 2399 "\r%5s completed (%4dMB/s) " 2400 "estimated time remaining: %uhr %02umin %02usec ", 2401 buf, kb_per_sec / 1024, 2402 sec_remaining / 60 / 60, 2403 sec_remaining / 60 % 60, 2404 sec_remaining % 60); 2405 2406 zcb->zcb_lastprint = now; 2407 } 2408 2409 return (0); 2410} 2411 2412static void 2413zdb_leak(void *arg, uint64_t start, uint64_t size) 2414{ 2415 vdev_t *vd = arg; 2416 2417 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2418 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2419} 2420 2421static metaslab_ops_t zdb_metaslab_ops = { 2422 NULL /* alloc */ 2423}; 2424 2425static void 2426zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2427{ 2428 ddt_bookmark_t ddb = { 0 }; 2429 ddt_entry_t dde; 2430 int error; 2431 2432 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2433 blkptr_t blk; 2434 ddt_phys_t *ddp = dde.dde_phys; 2435 2436 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2437 return; 2438 2439 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2440 2441 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2442 if (ddp->ddp_phys_birth == 0) 2443 continue; 2444 ddt_bp_create(ddb.ddb_checksum, 2445 &dde.dde_key, ddp, &blk); 2446 if (p == DDT_PHYS_DITTO) { 2447 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2448 } else { 2449 zcb->zcb_dedup_asize += 2450 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2451 zcb->zcb_dedup_blocks++; 2452 } 2453 } 2454 if (!dump_opt['L']) { 2455 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2456 ddt_enter(ddt); 2457 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2458 ddt_exit(ddt); 2459 } 2460 } 2461 2462 ASSERT(error == ENOENT); 2463} 2464 2465static void 2466zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2467{ 2468 zcb->zcb_spa = spa; 2469 2470 if (!dump_opt['L']) { 2471 vdev_t *rvd = spa->spa_root_vdev; 2472 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2473 vdev_t *vd = rvd->vdev_child[c]; 2474 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2475 metaslab_t *msp = vd->vdev_ms[m]; 2476 mutex_enter(&msp->ms_lock); 2477 metaslab_unload(msp); 2478 2479 /* 2480 * For leak detection, we overload the metaslab 2481 * ms_tree to contain allocated segments 2482 * instead of free segments. As a result, 2483 * we can't use the normal metaslab_load/unload 2484 * interfaces. 2485 */ 2486 if (msp->ms_sm != NULL) { 2487 (void) fprintf(stderr, 2488 "\rloading space map for " 2489 "vdev %llu of %llu, " 2490 "metaslab %llu of %llu ...", 2491 (longlong_t)c, 2492 (longlong_t)rvd->vdev_children, 2493 (longlong_t)m, 2494 (longlong_t)vd->vdev_ms_count); 2495 2496 msp->ms_ops = &zdb_metaslab_ops; 2497 VERIFY0(space_map_load(msp->ms_sm, 2498 msp->ms_tree, SM_ALLOC)); 2499 msp->ms_loaded = B_TRUE; 2500 } 2501 mutex_exit(&msp->ms_lock); 2502 } 2503 } 2504 (void) fprintf(stderr, "\n"); 2505 } 2506 2507 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2508 2509 zdb_ddt_leak_init(spa, zcb); 2510 2511 spa_config_exit(spa, SCL_CONFIG, FTAG); 2512} 2513 2514static void 2515zdb_leak_fini(spa_t *spa) 2516{ 2517 if (!dump_opt['L']) { 2518 vdev_t *rvd = spa->spa_root_vdev; 2519 for (int c = 0; c < rvd->vdev_children; c++) { 2520 vdev_t *vd = rvd->vdev_child[c]; 2521 for (int m = 0; m < vd->vdev_ms_count; m++) { 2522 metaslab_t *msp = vd->vdev_ms[m]; 2523 mutex_enter(&msp->ms_lock); 2524 2525 /* 2526 * The ms_tree has been overloaded to 2527 * contain allocated segments. Now that we 2528 * finished traversing all blocks, any 2529 * block that remains in the ms_tree 2530 * represents an allocated block that we 2531 * did not claim during the traversal. 2532 * Claimed blocks would have been removed 2533 * from the ms_tree. 2534 */ 2535 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2536 msp->ms_loaded = B_FALSE; 2537 2538 mutex_exit(&msp->ms_lock); 2539 } 2540 } 2541 } 2542} 2543 2544/* ARGSUSED */ 2545static int 2546count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2547{ 2548 zdb_cb_t *zcb = arg; 2549 2550 if (dump_opt['b'] >= 5) { 2551 char blkbuf[BP_SPRINTF_LEN]; 2552 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2553 (void) printf("[%s] %s\n", 2554 "deferred free", blkbuf); 2555 } 2556 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2557 return (0); 2558} 2559 2560static int 2561dump_block_stats(spa_t *spa) 2562{ 2563 zdb_cb_t zcb = { 0 }; 2564 zdb_blkstats_t *zb, *tzb; 2565 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2566 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2567 boolean_t leaks = B_FALSE; 2568 2569 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2570 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2571 (dump_opt['c'] == 1) ? "metadata " : "", 2572 dump_opt['c'] ? "checksums " : "", 2573 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2574 !dump_opt['L'] ? "nothing leaked " : ""); 2575 2576 /* 2577 * Load all space maps as SM_ALLOC maps, then traverse the pool 2578 * claiming each block we discover. If the pool is perfectly 2579 * consistent, the space maps will be empty when we're done. 2580 * Anything left over is a leak; any block we can't claim (because 2581 * it's not part of any space map) is a double allocation, 2582 * reference to a freed block, or an unclaimed log block. 2583 */ 2584 zdb_leak_init(spa, &zcb); 2585 2586 /* 2587 * If there's a deferred-free bplist, process that first. 2588 */ 2589 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2590 count_block_cb, &zcb, NULL); 2591 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2592 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2593 count_block_cb, &zcb, NULL); 2594 } 2595 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2596 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2597 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2598 &zcb, NULL)); 2599 } 2600 2601 if (dump_opt['c'] > 1) 2602 flags |= TRAVERSE_PREFETCH_DATA; 2603 2604 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2605 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2606 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2607 2608 /* 2609 * If we've traversed the data blocks then we need to wait for those 2610 * I/Os to complete. We leverage "The Godfather" zio to wait on 2611 * all async I/Os to complete. 2612 */ 2613 if (dump_opt['c']) { 2614 for (int i = 0; i < max_ncpus; i++) { 2615 (void) zio_wait(spa->spa_async_zio_root[i]); 2616 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2617 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2618 ZIO_FLAG_GODFATHER); 2619 } 2620 } 2621 2622 if (zcb.zcb_haderrors) { 2623 (void) printf("\nError counts:\n\n"); 2624 (void) printf("\t%5s %s\n", "errno", "count"); 2625 for (int e = 0; e < 256; e++) { 2626 if (zcb.zcb_errors[e] != 0) { 2627 (void) printf("\t%5d %llu\n", 2628 e, (u_longlong_t)zcb.zcb_errors[e]); 2629 } 2630 } 2631 } 2632 2633 /* 2634 * Report any leaked segments. 2635 */ 2636 zdb_leak_fini(spa); 2637 2638 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2639 2640 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2641 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2642 2643 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2644 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2645 2646 if (total_found == total_alloc) { 2647 if (!dump_opt['L']) 2648 (void) printf("\n\tNo leaks (block sum matches space" 2649 " maps exactly)\n"); 2650 } else { 2651 (void) printf("block traversal size %llu != alloc %llu " 2652 "(%s %lld)\n", 2653 (u_longlong_t)total_found, 2654 (u_longlong_t)total_alloc, 2655 (dump_opt['L']) ? "unreachable" : "leaked", 2656 (longlong_t)(total_alloc - total_found)); 2657 leaks = B_TRUE; 2658 } 2659 2660 if (tzb->zb_count == 0) 2661 return (2); 2662 2663 (void) printf("\n"); 2664 (void) printf("\tbp count: %10llu\n", 2665 (u_longlong_t)tzb->zb_count); 2666 (void) printf("\tganged count: %10llu\n", 2667 (longlong_t)tzb->zb_gangs); 2668 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2669 (u_longlong_t)tzb->zb_lsize, 2670 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2671 (void) printf("\tbp physical: %10llu avg:" 2672 " %6llu compression: %6.2f\n", 2673 (u_longlong_t)tzb->zb_psize, 2674 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2675 (double)tzb->zb_lsize / tzb->zb_psize); 2676 (void) printf("\tbp allocated: %10llu avg:" 2677 " %6llu compression: %6.2f\n", 2678 (u_longlong_t)tzb->zb_asize, 2679 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2680 (double)tzb->zb_lsize / tzb->zb_asize); 2681 (void) printf("\tbp deduped: %10llu ref>1:" 2682 " %6llu deduplication: %6.2f\n", 2683 (u_longlong_t)zcb.zcb_dedup_asize, 2684 (u_longlong_t)zcb.zcb_dedup_blocks, 2685 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2686 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2687 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2688 2689 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2690 if (zcb.zcb_embedded_blocks[i] == 0) 2691 continue; 2692 (void) printf("\n"); 2693 (void) printf("\tadditional, non-pointer bps of type %u: " 2694 "%10llu\n", 2695 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2696 2697 if (dump_opt['b'] >= 3) { 2698 (void) printf("\t number of (compressed) bytes: " 2699 "number of bps\n"); 2700 dump_histogram(zcb.zcb_embedded_histogram[i], 2701 sizeof (zcb.zcb_embedded_histogram[i]) / 2702 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2703 } 2704 } 2705 2706 if (tzb->zb_ditto_samevdev != 0) { 2707 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2708 (longlong_t)tzb->zb_ditto_samevdev); 2709 } 2710 2711 if (dump_opt['b'] >= 2) { 2712 int l, t, level; 2713 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2714 "\t avg\t comp\t%%Total\tType\n"); 2715 2716 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2717 char csize[32], lsize[32], psize[32], asize[32]; 2718 char avg[32], gang[32]; 2719 char *typename; 2720 2721 if (t < DMU_OT_NUMTYPES) 2722 typename = dmu_ot[t].ot_name; 2723 else 2724 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2725 2726 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2727 (void) printf("%6s\t%5s\t%5s\t%5s" 2728 "\t%5s\t%5s\t%6s\t%s\n", 2729 "-", 2730 "-", 2731 "-", 2732 "-", 2733 "-", 2734 "-", 2735 "-", 2736 typename); 2737 continue; 2738 } 2739 2740 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2741 level = (l == -1 ? ZB_TOTAL : l); 2742 zb = &zcb.zcb_type[level][t]; 2743 2744 if (zb->zb_asize == 0) 2745 continue; 2746 2747 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2748 continue; 2749 2750 if (level == 0 && zb->zb_asize == 2751 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2752 continue; 2753 2754 zdb_nicenum(zb->zb_count, csize); 2755 zdb_nicenum(zb->zb_lsize, lsize); 2756 zdb_nicenum(zb->zb_psize, psize); 2757 zdb_nicenum(zb->zb_asize, asize); 2758 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2759 zdb_nicenum(zb->zb_gangs, gang); 2760 2761 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2762 "\t%5.2f\t%6.2f\t", 2763 csize, lsize, psize, asize, avg, 2764 (double)zb->zb_lsize / zb->zb_psize, 2765 100.0 * zb->zb_asize / tzb->zb_asize); 2766 2767 if (level == ZB_TOTAL) 2768 (void) printf("%s\n", typename); 2769 else 2770 (void) printf(" L%d %s\n", 2771 level, typename); 2772 2773 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2774 (void) printf("\t number of ganged " 2775 "blocks: %s\n", gang); 2776 } 2777 2778 if (dump_opt['b'] >= 4) { 2779 (void) printf("psize " 2780 "(in 512-byte sectors): " 2781 "number of blocks\n"); 2782 dump_histogram(zb->zb_psize_histogram, 2783 PSIZE_HISTO_SIZE, 0); 2784 } 2785 } 2786 } 2787 } 2788 2789 (void) printf("\n"); 2790 2791 if (leaks) 2792 return (2); 2793 2794 if (zcb.zcb_haderrors) 2795 return (3); 2796 2797 return (0); 2798} 2799 2800typedef struct zdb_ddt_entry { 2801 ddt_key_t zdde_key; 2802 uint64_t zdde_ref_blocks; 2803 uint64_t zdde_ref_lsize; 2804 uint64_t zdde_ref_psize; 2805 uint64_t zdde_ref_dsize; 2806 avl_node_t zdde_node; 2807} zdb_ddt_entry_t; 2808 2809/* ARGSUSED */ 2810static int 2811zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2812 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2813{ 2814 avl_tree_t *t = arg; 2815 avl_index_t where; 2816 zdb_ddt_entry_t *zdde, zdde_search; 2817 2818 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2819 return (0); 2820 2821 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2822 (void) printf("traversing objset %llu, %llu objects, " 2823 "%lu blocks so far\n", 2824 (u_longlong_t)zb->zb_objset, 2825 (u_longlong_t)BP_GET_FILL(bp), 2826 avl_numnodes(t)); 2827 } 2828 2829 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2830 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2831 return (0); 2832 2833 ddt_key_fill(&zdde_search.zdde_key, bp); 2834 2835 zdde = avl_find(t, &zdde_search, &where); 2836 2837 if (zdde == NULL) { 2838 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2839 zdde->zdde_key = zdde_search.zdde_key; 2840 avl_insert(t, zdde, where); 2841 } 2842 2843 zdde->zdde_ref_blocks += 1; 2844 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2845 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2846 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2847 2848 return (0); 2849} 2850 2851static void 2852dump_simulated_ddt(spa_t *spa) 2853{ 2854 avl_tree_t t; 2855 void *cookie = NULL; 2856 zdb_ddt_entry_t *zdde; 2857 ddt_histogram_t ddh_total = { 0 }; 2858 ddt_stat_t dds_total = { 0 }; 2859 2860 avl_create(&t, ddt_entry_compare, 2861 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2862 2863 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2864 2865 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2866 zdb_ddt_add_cb, &t); 2867 2868 spa_config_exit(spa, SCL_CONFIG, FTAG); 2869 2870 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2871 ddt_stat_t dds; 2872 uint64_t refcnt = zdde->zdde_ref_blocks; 2873 ASSERT(refcnt != 0); 2874 2875 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2876 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2877 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2878 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2879 2880 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2881 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2882 dds.dds_ref_psize = zdde->zdde_ref_psize; 2883 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2884 2885 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2886 &dds, 0); 2887 2888 umem_free(zdde, sizeof (*zdde)); 2889 } 2890 2891 avl_destroy(&t); 2892 2893 ddt_histogram_stat(&dds_total, &ddh_total); 2894 2895 (void) printf("Simulated DDT histogram:\n"); 2896 2897 zpool_dump_ddt(&dds_total, &ddh_total); 2898 2899 dump_dedup_ratio(&dds_total); 2900} 2901 2902static void 2903dump_zpool(spa_t *spa) 2904{ 2905 dsl_pool_t *dp = spa_get_dsl(spa); 2906 int rc = 0; 2907 2908 if (dump_opt['S']) { 2909 dump_simulated_ddt(spa); 2910 return; 2911 } 2912 2913 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2914 (void) printf("\nCached configuration:\n"); 2915 dump_nvlist(spa->spa_config, 8); 2916 } 2917 2918 if (dump_opt['C']) 2919 dump_config(spa); 2920 2921 if (dump_opt['u']) 2922 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2923 2924 if (dump_opt['D']) 2925 dump_all_ddts(spa); 2926 2927 if (dump_opt['d'] > 2 || dump_opt['m']) 2928 dump_metaslabs(spa); 2929 if (dump_opt['M']) 2930 dump_metaslab_groups(spa); 2931 2932 if (dump_opt['d'] || dump_opt['i']) { 2933 dump_dir(dp->dp_meta_objset); 2934 if (dump_opt['d'] >= 3) { 2935 dump_bpobj(&spa->spa_deferred_bpobj, 2936 "Deferred frees", 0); 2937 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2938 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2939 "Pool snapshot frees", 0); 2940 } 2941 2942 if (spa_feature_is_active(spa, 2943 SPA_FEATURE_ASYNC_DESTROY)) { 2944 dump_bptree(spa->spa_meta_objset, 2945 spa->spa_dsl_pool->dp_bptree_obj, 2946 "Pool dataset frees"); 2947 } 2948 dump_dtl(spa->spa_root_vdev, 0); 2949 } 2950 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2951 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2952 } 2953 if (dump_opt['b'] || dump_opt['c']) 2954 rc = dump_block_stats(spa); 2955 2956 if (rc == 0) 2957 rc = verify_spacemap_refcounts(spa); 2958 2959 if (dump_opt['s']) 2960 show_pool_stats(spa); 2961 2962 if (dump_opt['h']) 2963 dump_history(spa); 2964 2965 if (rc != 0) 2966 exit(rc); 2967} 2968 2969#define ZDB_FLAG_CHECKSUM 0x0001 2970#define ZDB_FLAG_DECOMPRESS 0x0002 2971#define ZDB_FLAG_BSWAP 0x0004 2972#define ZDB_FLAG_GBH 0x0008 2973#define ZDB_FLAG_INDIRECT 0x0010 2974#define ZDB_FLAG_PHYS 0x0020 2975#define ZDB_FLAG_RAW 0x0040 2976#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2977 2978int flagbits[256]; 2979 2980static void 2981zdb_print_blkptr(blkptr_t *bp, int flags) 2982{ 2983 char blkbuf[BP_SPRINTF_LEN]; 2984 2985 if (flags & ZDB_FLAG_BSWAP) 2986 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2987 2988 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2989 (void) printf("%s\n", blkbuf); 2990} 2991 2992static void 2993zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2994{ 2995 int i; 2996 2997 for (i = 0; i < nbps; i++) 2998 zdb_print_blkptr(&bp[i], flags); 2999} 3000 3001static void 3002zdb_dump_gbh(void *buf, int flags) 3003{ 3004 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3005} 3006 3007static void 3008zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3009{ 3010 if (flags & ZDB_FLAG_BSWAP) 3011 byteswap_uint64_array(buf, size); 3012 (void) write(1, buf, size); 3013} 3014 3015static void 3016zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3017{ 3018 uint64_t *d = (uint64_t *)buf; 3019 int nwords = size / sizeof (uint64_t); 3020 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3021 int i, j; 3022 char *hdr, *c; 3023 3024 3025 if (do_bswap) 3026 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3027 else 3028 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3029 3030 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3031 3032 for (i = 0; i < nwords; i += 2) { 3033 (void) printf("%06llx: %016llx %016llx ", 3034 (u_longlong_t)(i * sizeof (uint64_t)), 3035 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3036 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3037 3038 c = (char *)&d[i]; 3039 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3040 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3041 (void) printf("\n"); 3042 } 3043} 3044 3045/* 3046 * There are two acceptable formats: 3047 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3048 * child[.child]* - For example: 0.1.1 3049 * 3050 * The second form can be used to specify arbitrary vdevs anywhere 3051 * in the heirarchy. For example, in a pool with a mirror of 3052 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3053 */ 3054static vdev_t * 3055zdb_vdev_lookup(vdev_t *vdev, char *path) 3056{ 3057 char *s, *p, *q; 3058 int i; 3059 3060 if (vdev == NULL) 3061 return (NULL); 3062 3063 /* First, assume the x.x.x.x format */ 3064 i = (int)strtoul(path, &s, 10); 3065 if (s == path || (s && *s != '.' && *s != '\0')) 3066 goto name; 3067 if (i < 0 || i >= vdev->vdev_children) 3068 return (NULL); 3069 3070 vdev = vdev->vdev_child[i]; 3071 if (*s == '\0') 3072 return (vdev); 3073 return (zdb_vdev_lookup(vdev, s+1)); 3074 3075name: 3076 for (i = 0; i < vdev->vdev_children; i++) { 3077 vdev_t *vc = vdev->vdev_child[i]; 3078 3079 if (vc->vdev_path == NULL) { 3080 vc = zdb_vdev_lookup(vc, path); 3081 if (vc == NULL) 3082 continue; 3083 else 3084 return (vc); 3085 } 3086 3087 p = strrchr(vc->vdev_path, '/'); 3088 p = p ? p + 1 : vc->vdev_path; 3089 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3090 3091 if (strcmp(vc->vdev_path, path) == 0) 3092 return (vc); 3093 if (strcmp(p, path) == 0) 3094 return (vc); 3095 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3096 return (vc); 3097 } 3098 3099 return (NULL); 3100} 3101 3102/* 3103 * Read a block from a pool and print it out. The syntax of the 3104 * block descriptor is: 3105 * 3106 * pool:vdev_specifier:offset:size[:flags] 3107 * 3108 * pool - The name of the pool you wish to read from 3109 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3110 * offset - offset, in hex, in bytes 3111 * size - Amount of data to read, in hex, in bytes 3112 * flags - A string of characters specifying options 3113 * b: Decode a blkptr at given offset within block 3114 * *c: Calculate and display checksums 3115 * d: Decompress data before dumping 3116 * e: Byteswap data before dumping 3117 * g: Display data as a gang block header 3118 * i: Display as an indirect block 3119 * p: Do I/O to physical offset 3120 * r: Dump raw data to stdout 3121 * 3122 * * = not yet implemented 3123 */ 3124static void 3125zdb_read_block(char *thing, spa_t *spa) 3126{ 3127 blkptr_t blk, *bp = &blk; 3128 dva_t *dva = bp->blk_dva; 3129 int flags = 0; 3130 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3131 zio_t *zio; 3132 vdev_t *vd; 3133 void *pbuf, *lbuf, *buf; 3134 char *s, *p, *dup, *vdev, *flagstr; 3135 int i, error; 3136 3137 dup = strdup(thing); 3138 s = strtok(dup, ":"); 3139 vdev = s ? s : ""; 3140 s = strtok(NULL, ":"); 3141 offset = strtoull(s ? s : "", NULL, 16); 3142 s = strtok(NULL, ":"); 3143 size = strtoull(s ? s : "", NULL, 16); 3144 s = strtok(NULL, ":"); 3145 flagstr = s ? s : ""; 3146 3147 s = NULL; 3148 if (size == 0) 3149 s = "size must not be zero"; 3150 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3151 s = "size must be a multiple of sector size"; 3152 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3153 s = "offset must be a multiple of sector size"; 3154 if (s) { 3155 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3156 free(dup); 3157 return; 3158 } 3159 3160 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3161 for (i = 0; flagstr[i]; i++) { 3162 int bit = flagbits[(uchar_t)flagstr[i]]; 3163 3164 if (bit == 0) { 3165 (void) printf("***Invalid flag: %c\n", 3166 flagstr[i]); 3167 continue; 3168 } 3169 flags |= bit; 3170 3171 /* If it's not something with an argument, keep going */ 3172 if ((bit & (ZDB_FLAG_CHECKSUM | 3173 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3174 continue; 3175 3176 p = &flagstr[i + 1]; 3177 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3178 blkptr_offset = strtoull(p, &p, 16); 3179 if (*p != ':' && *p != '\0') { 3180 (void) printf("***Invalid flag arg: '%s'\n", s); 3181 free(dup); 3182 return; 3183 } 3184 i += p - &flagstr[i + 1]; /* skip over the number */ 3185 } 3186 } 3187 3188 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3189 if (vd == NULL) { 3190 (void) printf("***Invalid vdev: %s\n", vdev); 3191 free(dup); 3192 return; 3193 } else { 3194 if (vd->vdev_path) 3195 (void) fprintf(stderr, "Found vdev: %s\n", 3196 vd->vdev_path); 3197 else 3198 (void) fprintf(stderr, "Found vdev type: %s\n", 3199 vd->vdev_ops->vdev_op_type); 3200 } 3201 3202 psize = size; 3203 lsize = size; 3204 3205 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3206 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3207 3208 BP_ZERO(bp); 3209 3210 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3211 DVA_SET_OFFSET(&dva[0], offset); 3212 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3213 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3214 3215 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3216 3217 BP_SET_LSIZE(bp, lsize); 3218 BP_SET_PSIZE(bp, psize); 3219 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3220 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3221 BP_SET_TYPE(bp, DMU_OT_NONE); 3222 BP_SET_LEVEL(bp, 0); 3223 BP_SET_DEDUP(bp, 0); 3224 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3225 3226 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3227 zio = zio_root(spa, NULL, NULL, 0); 3228 3229 if (vd == vd->vdev_top) { 3230 /* 3231 * Treat this as a normal block read. 3232 */ 3233 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3234 ZIO_PRIORITY_SYNC_READ, 3235 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3236 } else { 3237 /* 3238 * Treat this as a vdev child I/O. 3239 */ 3240 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3241 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3242 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3243 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3244 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3245 } 3246 3247 error = zio_wait(zio); 3248 spa_config_exit(spa, SCL_STATE, FTAG); 3249 3250 if (error) { 3251 (void) printf("Read of %s failed, error: %d\n", thing, error); 3252 goto out; 3253 } 3254 3255 if (flags & ZDB_FLAG_DECOMPRESS) { 3256 /* 3257 * We don't know how the data was compressed, so just try 3258 * every decompress function at every inflated blocksize. 3259 */ 3260 enum zio_compress c; 3261 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3262 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3263 3264 bcopy(pbuf, pbuf2, psize); 3265 3266 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3267 SPA_MAXBLOCKSIZE - psize) == 0); 3268 3269 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3270 SPA_MAXBLOCKSIZE - psize) == 0); 3271 3272 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3273 lsize -= SPA_MINBLOCKSIZE) { 3274 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3275 if (zio_decompress_data(c, pbuf, lbuf, 3276 psize, lsize) == 0 && 3277 zio_decompress_data(c, pbuf2, lbuf2, 3278 psize, lsize) == 0 && 3279 bcmp(lbuf, lbuf2, lsize) == 0) 3280 break; 3281 } 3282 if (c != ZIO_COMPRESS_FUNCTIONS) 3283 break; 3284 lsize -= SPA_MINBLOCKSIZE; 3285 } 3286 3287 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3288 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3289 3290 if (lsize <= psize) { 3291 (void) printf("Decompress of %s failed\n", thing); 3292 goto out; 3293 } 3294 buf = lbuf; 3295 size = lsize; 3296 } else { 3297 buf = pbuf; 3298 size = psize; 3299 } 3300 3301 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3302 zdb_print_blkptr((blkptr_t *)(void *) 3303 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3304 else if (flags & ZDB_FLAG_RAW) 3305 zdb_dump_block_raw(buf, size, flags); 3306 else if (flags & ZDB_FLAG_INDIRECT) 3307 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3308 flags); 3309 else if (flags & ZDB_FLAG_GBH) 3310 zdb_dump_gbh(buf, flags); 3311 else 3312 zdb_dump_block(thing, buf, size, flags); 3313 3314out: 3315 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3316 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3317 free(dup); 3318} 3319 3320static boolean_t 3321pool_match(nvlist_t *cfg, char *tgt) 3322{ 3323 uint64_t v, guid = strtoull(tgt, NULL, 0); 3324 char *s; 3325 3326 if (guid != 0) { 3327 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3328 return (v == guid); 3329 } else { 3330 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3331 return (strcmp(s, tgt) == 0); 3332 } 3333 return (B_FALSE); 3334} 3335 3336static char * 3337find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3338{ 3339 nvlist_t *pools; 3340 nvlist_t *match = NULL; 3341 char *name = NULL; 3342 char *sepp = NULL; 3343 char sep; 3344 int count = 0; 3345 importargs_t args = { 0 }; 3346 3347 args.paths = dirc; 3348 args.path = dirv; 3349 args.can_be_active = B_TRUE; 3350 3351 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3352 sep = *sepp; 3353 *sepp = '\0'; 3354 } 3355 3356 pools = zpool_search_import(g_zfs, &args); 3357 3358 if (pools != NULL) { 3359 nvpair_t *elem = NULL; 3360 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3361 verify(nvpair_value_nvlist(elem, configp) == 0); 3362 if (pool_match(*configp, *target)) { 3363 count++; 3364 if (match != NULL) { 3365 /* print previously found config */ 3366 if (name != NULL) { 3367 (void) printf("%s\n", name); 3368 dump_nvlist(match, 8); 3369 name = NULL; 3370 } 3371 (void) printf("%s\n", 3372 nvpair_name(elem)); 3373 dump_nvlist(*configp, 8); 3374 } else { 3375 match = *configp; 3376 name = nvpair_name(elem); 3377 } 3378 } 3379 } 3380 } 3381 if (count > 1) 3382 (void) fatal("\tMatched %d pools - use pool GUID " 3383 "instead of pool name or \n" 3384 "\tpool name part of a dataset name to select pool", count); 3385 3386 if (sepp) 3387 *sepp = sep; 3388 /* 3389 * If pool GUID was specified for pool id, replace it with pool name 3390 */ 3391 if (name && (strstr(*target, name) != *target)) { 3392 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3393 3394 *target = umem_alloc(sz, UMEM_NOFAIL); 3395 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3396 } 3397 3398 *configp = name ? match : NULL; 3399 3400 return (name); 3401} 3402 3403int 3404main(int argc, char **argv) 3405{ 3406 int i, c; 3407 struct rlimit rl = { 1024, 1024 }; 3408 spa_t *spa = NULL; 3409 objset_t *os = NULL; 3410 int dump_all = 1; 3411 int verbose = 0; 3412 int error = 0; 3413 char **searchdirs = NULL; 3414 int nsearch = 0; 3415 char *target; 3416 nvlist_t *policy = NULL; 3417 uint64_t max_txg = UINT64_MAX; 3418 int rewind = ZPOOL_NEVER_REWIND; 3419 3420 (void) setrlimit(RLIMIT_NOFILE, &rl); 3421 (void) enable_extended_FILE_stdio(-1, -1); 3422 3423 dprintf_setup(&argc, argv); 3424 3425 while ((c = getopt(argc, argv, 3426 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) { 3427 switch (c) { 3428 case 'b': 3429 case 'c': 3430 case 'd': 3431 case 'h': 3432 case 'i': 3433 case 'l': 3434 case 'm': 3435 case 's': 3436 case 'u': 3437 case 'C': 3438 case 'D': 3439 case 'M': 3440 case 'R': 3441 case 'S': 3442 dump_opt[c]++; 3443 dump_all = 0; 3444 break; 3445 case 'A': 3446 case 'F': 3447 case 'L': 3448 case 'X': 3449 case 'e': 3450 case 'P': 3451 dump_opt[c]++; 3452 break; 3453 case 'I': 3454 max_inflight = strtoull(optarg, NULL, 0); 3455 if (max_inflight == 0) { 3456 (void) fprintf(stderr, "maximum number " 3457 "of inflight I/Os must be greater " 3458 "than 0\n"); 3459 usage(); 3460 } 3461 break; 3462 case 'p': 3463 if (searchdirs == NULL) { 3464 searchdirs = umem_alloc(sizeof (char *), 3465 UMEM_NOFAIL); 3466 } else { 3467 char **tmp = umem_alloc((nsearch + 1) * 3468 sizeof (char *), UMEM_NOFAIL); 3469 bcopy(searchdirs, tmp, nsearch * 3470 sizeof (char *)); 3471 umem_free(searchdirs, 3472 nsearch * sizeof (char *)); 3473 searchdirs = tmp; 3474 } 3475 searchdirs[nsearch++] = optarg; 3476 break; 3477 case 't': 3478 max_txg = strtoull(optarg, NULL, 0); 3479 if (max_txg < TXG_INITIAL) { 3480 (void) fprintf(stderr, "incorrect txg " 3481 "specified: %s\n", optarg); 3482 usage(); 3483 } 3484 break; 3485 case 'U': 3486 spa_config_path = optarg; 3487 break; 3488 case 'v': 3489 verbose++; 3490 break; 3491 case 'x': 3492 vn_dumpdir = optarg; 3493 break; 3494 default: 3495 usage(); 3496 break; 3497 } 3498 } 3499 3500 if (!dump_opt['e'] && searchdirs != NULL) { 3501 (void) fprintf(stderr, "-p option requires use of -e\n"); 3502 usage(); 3503 } 3504 3505 /* 3506 * ZDB does not typically re-read blocks; therefore limit the ARC 3507 * to 256 MB, which can be used entirely for metadata. 3508 */ 3509 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3510 3511 kernel_init(FREAD); 3512 g_zfs = libzfs_init(); 3513 ASSERT(g_zfs != NULL); 3514 3515 if (dump_all) 3516 verbose = MAX(verbose, 1); 3517 3518 for (c = 0; c < 256; c++) { 3519 if (dump_all && !strchr("elAFLRSXP", c)) 3520 dump_opt[c] = 1; 3521 if (dump_opt[c]) 3522 dump_opt[c] += verbose; 3523 } 3524 3525 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3526 zfs_recover = (dump_opt['A'] > 1); 3527 3528 argc -= optind; 3529 argv += optind; 3530 3531 if (argc < 2 && dump_opt['R']) 3532 usage(); 3533 if (argc < 1) { 3534 if (!dump_opt['e'] && dump_opt['C']) { 3535 dump_cachefile(spa_config_path); 3536 return (0); 3537 } 3538 usage(); 3539 } 3540 3541 if (dump_opt['l']) { 3542 dump_label(argv[0]); 3543 return (0); 3544 } 3545 3546 if (dump_opt['X'] || dump_opt['F']) 3547 rewind = ZPOOL_DO_REWIND | 3548 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3549 3550 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3551 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3552 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3553 fatal("internal error: %s", strerror(ENOMEM)); 3554 3555 error = 0; 3556 target = argv[0]; 3557 3558 if (dump_opt['e']) { 3559 nvlist_t *cfg = NULL; 3560 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3561 3562 error = ENOENT; 3563 if (name) { 3564 if (dump_opt['C'] > 1) { 3565 (void) printf("\nConfiguration for import:\n"); 3566 dump_nvlist(cfg, 8); 3567 } 3568 if (nvlist_add_nvlist(cfg, 3569 ZPOOL_REWIND_POLICY, policy) != 0) { 3570 fatal("can't open '%s': %s", 3571 target, strerror(ENOMEM)); 3572 } 3573 if ((error = spa_import(name, cfg, NULL, 3574 ZFS_IMPORT_MISSING_LOG)) != 0) { 3575 error = spa_import(name, cfg, NULL, 3576 ZFS_IMPORT_VERBATIM); 3577 } 3578 } 3579 } 3580 3581 if (error == 0) { 3582 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3583 error = spa_open_rewind(target, &spa, FTAG, policy, 3584 NULL); 3585 if (error) { 3586 /* 3587 * If we're missing the log device then 3588 * try opening the pool after clearing the 3589 * log state. 3590 */ 3591 mutex_enter(&spa_namespace_lock); 3592 if ((spa = spa_lookup(target)) != NULL && 3593 spa->spa_log_state == SPA_LOG_MISSING) { 3594 spa->spa_log_state = SPA_LOG_CLEAR; 3595 error = 0; 3596 } 3597 mutex_exit(&spa_namespace_lock); 3598 3599 if (!error) { 3600 error = spa_open_rewind(target, &spa, 3601 FTAG, policy, NULL); 3602 } 3603 } 3604 } else { 3605 error = dmu_objset_own(target, DMU_OST_ANY, 3606 B_TRUE, FTAG, &os); 3607 } 3608 } 3609 nvlist_free(policy); 3610 3611 if (error) 3612 fatal("can't open '%s': %s", target, strerror(error)); 3613 3614 argv++; 3615 argc--; 3616 if (!dump_opt['R']) { 3617 if (argc > 0) { 3618 zopt_objects = argc; 3619 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3620 for (i = 0; i < zopt_objects; i++) { 3621 errno = 0; 3622 zopt_object[i] = strtoull(argv[i], NULL, 0); 3623 if (zopt_object[i] == 0 && errno != 0) 3624 fatal("bad number %s: %s", 3625 argv[i], strerror(errno)); 3626 } 3627 } 3628 if (os != NULL) { 3629 dump_dir(os); 3630 } else if (zopt_objects > 0 && !dump_opt['m']) { 3631 dump_dir(spa->spa_meta_objset); 3632 } else { 3633 dump_zpool(spa); 3634 } 3635 } else { 3636 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3637 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3638 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3639 flagbits['e'] = ZDB_FLAG_BSWAP; 3640 flagbits['g'] = ZDB_FLAG_GBH; 3641 flagbits['i'] = ZDB_FLAG_INDIRECT; 3642 flagbits['p'] = ZDB_FLAG_PHYS; 3643 flagbits['r'] = ZDB_FLAG_RAW; 3644 3645 for (i = 0; i < argc; i++) 3646 zdb_read_block(argv[i], spa); 3647 } 3648 3649 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3650 3651 fuid_table_destroy(); 3652 sa_loaded = B_FALSE; 3653 3654 libzfs_fini(g_zfs); 3655 kernel_fini(); 3656 3657 return (0); 3658} 3659