zdb.c revision 263397
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2013 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern int zfs_recover; 79#else 80int zfs_recover; 81#endif 82 83const char cmdname[] = "zdb"; 84uint8_t dump_opt[256]; 85 86typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88extern void dump_intent_log(zilog_t *); 89uint64_t *zopt_object = NULL; 90int zopt_objects = 0; 91libzfs_handle_t *g_zfs; 92uint64_t max_inflight = 200; 93 94/* 95 * These libumem hooks provide a reasonable set of defaults for the allocator's 96 * debugging facilities. 97 */ 98const char * 99_umem_debug_init() 100{ 101 return ("default,verbose"); /* $UMEM_DEBUG setting */ 102} 103 104const char * 105_umem_logging_init(void) 106{ 107 return ("fail,contents"); /* $UMEM_LOGGING setting */ 108} 109 110static void 111usage(void) 112{ 113 (void) fprintf(stderr, 114 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-M inflight I/Os] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 119 "poolname [vdev [metaslab...]]\n" 120 " %s -R [-A] [-e [-p path...]] poolname " 121 "vdev:offset:size[:flags]\n" 122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 123 " %s -l [-uA] device\n" 124 " %s -C [-A] [-U config]\n\n", 125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 126 127 (void) fprintf(stderr, " Dataset name must include at least one " 128 "separator character '/' or '@'\n"); 129 (void) fprintf(stderr, " If dataset name is specified, only that " 130 "dataset is dumped\n"); 131 (void) fprintf(stderr, " If object numbers are specified, only " 132 "those objects are dumped\n\n"); 133 (void) fprintf(stderr, " Options to control amount of output:\n"); 134 (void) fprintf(stderr, " -u uberblock\n"); 135 (void) fprintf(stderr, " -d dataset(s)\n"); 136 (void) fprintf(stderr, " -i intent logs\n"); 137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 138 (void) fprintf(stderr, " -h pool history\n"); 139 (void) fprintf(stderr, " -b block statistics\n"); 140 (void) fprintf(stderr, " -m metaslabs\n"); 141 (void) fprintf(stderr, " -c checksum all metadata (twice for " 142 "all data) blocks\n"); 143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 144 (void) fprintf(stderr, " -D dedup statistics\n"); 145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 146 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 147 (void) fprintf(stderr, " -l dump label contents\n"); 148 (void) fprintf(stderr, " -L disable leak tracking (do not " 149 "load spacemaps)\n"); 150 (void) fprintf(stderr, " -R read and display block from a " 151 "device\n\n"); 152 (void) fprintf(stderr, " Below options are intended for use " 153 "with other options (except -l):\n"); 154 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 155 "panic recovery (-AA) or both (-AAA)\n"); 156 (void) fprintf(stderr, " -F attempt automatic rewind within " 157 "safe range of transaction groups\n"); 158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 159 "cachefile\n"); 160 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 161 "work with dataset)\n"); 162 (void) fprintf(stderr, " -e pool is exported/destroyed/" 163 "has altroot/not in a cachefile\n"); 164 (void) fprintf(stderr, " -p <path> -- use one or more with " 165 "-e to specify path to vdev dir\n"); 166 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 167 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 168 "searching for uberblocks\n"); 169 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 170 "specify the maximum number of checksumming I/Os [default is 200]"); 171 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 172 "to make only that option verbose\n"); 173 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 174 exit(1); 175} 176 177/* 178 * Called for usage errors that are discovered after a call to spa_open(), 179 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 180 */ 181 182static void 183fatal(const char *fmt, ...) 184{ 185 va_list ap; 186 187 va_start(ap, fmt); 188 (void) fprintf(stderr, "%s: ", cmdname); 189 (void) vfprintf(stderr, fmt, ap); 190 va_end(ap); 191 (void) fprintf(stderr, "\n"); 192 193 exit(1); 194} 195 196/* ARGSUSED */ 197static void 198dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 199{ 200 nvlist_t *nv; 201 size_t nvsize = *(uint64_t *)data; 202 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 203 204 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 205 206 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 207 208 umem_free(packed, nvsize); 209 210 dump_nvlist(nv, 8); 211 212 nvlist_free(nv); 213} 214 215/* ARGSUSED */ 216static void 217dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 218{ 219 spa_history_phys_t *shp = data; 220 221 if (shp == NULL) 222 return; 223 224 (void) printf("\t\tpool_create_len = %llu\n", 225 (u_longlong_t)shp->sh_pool_create_len); 226 (void) printf("\t\tphys_max_off = %llu\n", 227 (u_longlong_t)shp->sh_phys_max_off); 228 (void) printf("\t\tbof = %llu\n", 229 (u_longlong_t)shp->sh_bof); 230 (void) printf("\t\teof = %llu\n", 231 (u_longlong_t)shp->sh_eof); 232 (void) printf("\t\trecords_lost = %llu\n", 233 (u_longlong_t)shp->sh_records_lost); 234} 235 236static void 237zdb_nicenum(uint64_t num, char *buf) 238{ 239 if (dump_opt['P']) 240 (void) sprintf(buf, "%llu", (longlong_t)num); 241 else 242 nicenum(num, buf); 243} 244 245const char histo_stars[] = "****************************************"; 246const int histo_width = sizeof (histo_stars) - 1; 247 248static void 249dump_histogram(const uint64_t *histo, int size, int offset) 250{ 251 int i; 252 int minidx = size - 1; 253 int maxidx = 0; 254 uint64_t max = 0; 255 256 for (i = 0; i < size; i++) { 257 if (histo[i] > max) 258 max = histo[i]; 259 if (histo[i] > 0 && i > maxidx) 260 maxidx = i; 261 if (histo[i] > 0 && i < minidx) 262 minidx = i; 263 } 264 265 if (max < histo_width) 266 max = histo_width; 267 268 for (i = minidx; i <= maxidx; i++) { 269 (void) printf("\t\t\t%3u: %6llu %s\n", 270 i + offset, (u_longlong_t)histo[i], 271 &histo_stars[(max - histo[i]) * histo_width / max]); 272 } 273} 274 275static void 276dump_zap_stats(objset_t *os, uint64_t object) 277{ 278 int error; 279 zap_stats_t zs; 280 281 error = zap_get_stats(os, object, &zs); 282 if (error) 283 return; 284 285 if (zs.zs_ptrtbl_len == 0) { 286 ASSERT(zs.zs_num_blocks == 1); 287 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 288 (u_longlong_t)zs.zs_blocksize, 289 (u_longlong_t)zs.zs_num_entries); 290 return; 291 } 292 293 (void) printf("\tFat ZAP stats:\n"); 294 295 (void) printf("\t\tPointer table:\n"); 296 (void) printf("\t\t\t%llu elements\n", 297 (u_longlong_t)zs.zs_ptrtbl_len); 298 (void) printf("\t\t\tzt_blk: %llu\n", 299 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 300 (void) printf("\t\t\tzt_numblks: %llu\n", 301 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 302 (void) printf("\t\t\tzt_shift: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 304 (void) printf("\t\t\tzt_blks_copied: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 306 (void) printf("\t\t\tzt_nextblk: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_nextblk); 308 309 (void) printf("\t\tZAP entries: %llu\n", 310 (u_longlong_t)zs.zs_num_entries); 311 (void) printf("\t\tLeaf blocks: %llu\n", 312 (u_longlong_t)zs.zs_num_leafs); 313 (void) printf("\t\tTotal blocks: %llu\n", 314 (u_longlong_t)zs.zs_num_blocks); 315 (void) printf("\t\tzap_block_type: 0x%llx\n", 316 (u_longlong_t)zs.zs_block_type); 317 (void) printf("\t\tzap_magic: 0x%llx\n", 318 (u_longlong_t)zs.zs_magic); 319 (void) printf("\t\tzap_salt: 0x%llx\n", 320 (u_longlong_t)zs.zs_salt); 321 322 (void) printf("\t\tLeafs with 2^n pointers:\n"); 323 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 324 325 (void) printf("\t\tBlocks with n*5 entries:\n"); 326 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 327 328 (void) printf("\t\tBlocks n/10 full:\n"); 329 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tEntries with n chunks:\n"); 332 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tBuckets with n entries:\n"); 335 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 336} 337 338/*ARGSUSED*/ 339static void 340dump_none(objset_t *os, uint64_t object, void *data, size_t size) 341{ 342} 343 344/*ARGSUSED*/ 345static void 346dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 347{ 348 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 349} 350 351/*ARGSUSED*/ 352void 353dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 354{ 355} 356 357/*ARGSUSED*/ 358static void 359dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 360{ 361} 362 363/*ARGSUSED*/ 364static void 365dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 366{ 367 zap_cursor_t zc; 368 zap_attribute_t attr; 369 void *prop; 370 int i; 371 372 dump_zap_stats(os, object); 373 (void) printf("\n"); 374 375 for (zap_cursor_init(&zc, os, object); 376 zap_cursor_retrieve(&zc, &attr) == 0; 377 zap_cursor_advance(&zc)) { 378 (void) printf("\t\t%s = ", attr.za_name); 379 if (attr.za_num_integers == 0) { 380 (void) printf("\n"); 381 continue; 382 } 383 prop = umem_zalloc(attr.za_num_integers * 384 attr.za_integer_length, UMEM_NOFAIL); 385 (void) zap_lookup(os, object, attr.za_name, 386 attr.za_integer_length, attr.za_num_integers, prop); 387 if (attr.za_integer_length == 1) { 388 (void) printf("%s", (char *)prop); 389 } else { 390 for (i = 0; i < attr.za_num_integers; i++) { 391 switch (attr.za_integer_length) { 392 case 2: 393 (void) printf("%u ", 394 ((uint16_t *)prop)[i]); 395 break; 396 case 4: 397 (void) printf("%u ", 398 ((uint32_t *)prop)[i]); 399 break; 400 case 8: 401 (void) printf("%lld ", 402 (u_longlong_t)((int64_t *)prop)[i]); 403 break; 404 } 405 } 406 } 407 (void) printf("\n"); 408 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 409 } 410 zap_cursor_fini(&zc); 411} 412 413/*ARGSUSED*/ 414static void 415dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 416{ 417 dump_zap_stats(os, object); 418 /* contents are printed elsewhere, properly decoded */ 419} 420 421/*ARGSUSED*/ 422static void 423dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 424{ 425 zap_cursor_t zc; 426 zap_attribute_t attr; 427 428 dump_zap_stats(os, object); 429 (void) printf("\n"); 430 431 for (zap_cursor_init(&zc, os, object); 432 zap_cursor_retrieve(&zc, &attr) == 0; 433 zap_cursor_advance(&zc)) { 434 (void) printf("\t\t%s = ", attr.za_name); 435 if (attr.za_num_integers == 0) { 436 (void) printf("\n"); 437 continue; 438 } 439 (void) printf(" %llx : [%d:%d:%d]\n", 440 (u_longlong_t)attr.za_first_integer, 441 (int)ATTR_LENGTH(attr.za_first_integer), 442 (int)ATTR_BSWAP(attr.za_first_integer), 443 (int)ATTR_NUM(attr.za_first_integer)); 444 } 445 zap_cursor_fini(&zc); 446} 447 448/*ARGSUSED*/ 449static void 450dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 451{ 452 zap_cursor_t zc; 453 zap_attribute_t attr; 454 uint16_t *layout_attrs; 455 int i; 456 457 dump_zap_stats(os, object); 458 (void) printf("\n"); 459 460 for (zap_cursor_init(&zc, os, object); 461 zap_cursor_retrieve(&zc, &attr) == 0; 462 zap_cursor_advance(&zc)) { 463 (void) printf("\t\t%s = [", attr.za_name); 464 if (attr.za_num_integers == 0) { 465 (void) printf("\n"); 466 continue; 467 } 468 469 VERIFY(attr.za_integer_length == 2); 470 layout_attrs = umem_zalloc(attr.za_num_integers * 471 attr.za_integer_length, UMEM_NOFAIL); 472 473 VERIFY(zap_lookup(os, object, attr.za_name, 474 attr.za_integer_length, 475 attr.za_num_integers, layout_attrs) == 0); 476 477 for (i = 0; i != attr.za_num_integers; i++) 478 (void) printf(" %d ", (int)layout_attrs[i]); 479 (void) printf("]\n"); 480 umem_free(layout_attrs, 481 attr.za_num_integers * attr.za_integer_length); 482 } 483 zap_cursor_fini(&zc); 484} 485 486/*ARGSUSED*/ 487static void 488dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 489{ 490 zap_cursor_t zc; 491 zap_attribute_t attr; 492 const char *typenames[] = { 493 /* 0 */ "not specified", 494 /* 1 */ "FIFO", 495 /* 2 */ "Character Device", 496 /* 3 */ "3 (invalid)", 497 /* 4 */ "Directory", 498 /* 5 */ "5 (invalid)", 499 /* 6 */ "Block Device", 500 /* 7 */ "7 (invalid)", 501 /* 8 */ "Regular File", 502 /* 9 */ "9 (invalid)", 503 /* 10 */ "Symbolic Link", 504 /* 11 */ "11 (invalid)", 505 /* 12 */ "Socket", 506 /* 13 */ "Door", 507 /* 14 */ "Event Port", 508 /* 15 */ "15 (invalid)", 509 }; 510 511 dump_zap_stats(os, object); 512 (void) printf("\n"); 513 514 for (zap_cursor_init(&zc, os, object); 515 zap_cursor_retrieve(&zc, &attr) == 0; 516 zap_cursor_advance(&zc)) { 517 (void) printf("\t\t%s = %lld (type: %s)\n", 518 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 519 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 520 } 521 zap_cursor_fini(&zc); 522} 523 524int 525get_dtl_refcount(vdev_t *vd) 526{ 527 int refcount = 0; 528 529 if (vd->vdev_ops->vdev_op_leaf) { 530 space_map_t *sm = vd->vdev_dtl_sm; 531 532 if (sm != NULL && 533 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 534 return (1); 535 return (0); 536 } 537 538 for (int c = 0; c < vd->vdev_children; c++) 539 refcount += get_dtl_refcount(vd->vdev_child[c]); 540 return (refcount); 541} 542 543int 544get_metaslab_refcount(vdev_t *vd) 545{ 546 int refcount = 0; 547 548 if (vd->vdev_top == vd) { 549 for (int m = 0; m < vd->vdev_ms_count; m++) { 550 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 551 552 if (sm != NULL && 553 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 554 refcount++; 555 } 556 } 557 for (int c = 0; c < vd->vdev_children; c++) 558 refcount += get_metaslab_refcount(vd->vdev_child[c]); 559 560 return (refcount); 561} 562 563static int 564verify_spacemap_refcounts(spa_t *spa) 565{ 566 uint64_t expected_refcount = 0; 567 uint64_t actual_refcount; 568 569 (void) feature_get_refcount(spa, 570 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 571 &expected_refcount); 572 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 573 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 574 575 if (expected_refcount != actual_refcount) { 576 (void) printf("space map refcount mismatch: expected %lld != " 577 "actual %lld\n", 578 (longlong_t)expected_refcount, 579 (longlong_t)actual_refcount); 580 return (2); 581 } 582 return (0); 583} 584 585static void 586dump_spacemap(objset_t *os, space_map_t *sm) 587{ 588 uint64_t alloc, offset, entry; 589 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 590 "INVALID", "INVALID", "INVALID", "INVALID" }; 591 592 if (sm == NULL) 593 return; 594 595 /* 596 * Print out the freelist entries in both encoded and decoded form. 597 */ 598 alloc = 0; 599 for (offset = 0; offset < space_map_length(sm); 600 offset += sizeof (entry)) { 601 uint8_t mapshift = sm->sm_shift; 602 603 VERIFY0(dmu_read(os, space_map_object(sm), offset, 604 sizeof (entry), &entry, DMU_READ_PREFETCH)); 605 if (SM_DEBUG_DECODE(entry)) { 606 607 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 608 (u_longlong_t)(offset / sizeof (entry)), 609 ddata[SM_DEBUG_ACTION_DECODE(entry)], 610 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 611 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 612 } else { 613 (void) printf("\t [%6llu] %c range:" 614 " %010llx-%010llx size: %06llx\n", 615 (u_longlong_t)(offset / sizeof (entry)), 616 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 617 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 618 mapshift) + sm->sm_start), 619 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 620 mapshift) + sm->sm_start + 621 (SM_RUN_DECODE(entry) << mapshift)), 622 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 623 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 624 alloc += SM_RUN_DECODE(entry) << mapshift; 625 else 626 alloc -= SM_RUN_DECODE(entry) << mapshift; 627 } 628 } 629 if (alloc != space_map_allocated(sm)) { 630 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 631 "with space map summary (%llu)\n", 632 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 633 } 634} 635 636static void 637dump_metaslab_stats(metaslab_t *msp) 638{ 639 char maxbuf[32]; 640 range_tree_t *rt = msp->ms_tree; 641 avl_tree_t *t = &msp->ms_size_tree; 642 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 643 644 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 645 646 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 647 "segments", avl_numnodes(t), "maxsize", maxbuf, 648 "freepct", free_pct); 649 (void) printf("\tIn-memory histogram:\n"); 650 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 651} 652 653static void 654dump_metaslab(metaslab_t *msp) 655{ 656 vdev_t *vd = msp->ms_group->mg_vd; 657 spa_t *spa = vd->vdev_spa; 658 space_map_t *sm = msp->ms_sm; 659 char freebuf[32]; 660 661 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 662 663 (void) printf( 664 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 665 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 666 (u_longlong_t)space_map_object(sm), freebuf); 667 668 if (dump_opt['m'] > 2 && !dump_opt['L']) { 669 mutex_enter(&msp->ms_lock); 670 metaslab_load_wait(msp); 671 if (!msp->ms_loaded) { 672 VERIFY0(metaslab_load(msp)); 673 range_tree_stat_verify(msp->ms_tree); 674 } 675 dump_metaslab_stats(msp); 676 metaslab_unload(msp); 677 mutex_exit(&msp->ms_lock); 678 } 679 680 if (dump_opt['m'] > 1 && sm != NULL && 681 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 682 /* 683 * The space map histogram represents free space in chunks 684 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 685 */ 686 (void) printf("\tOn-disk histogram:\n"); 687 dump_histogram(sm->sm_phys->smp_histogram, 688 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 689 } 690 691 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 692 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 693 694 mutex_enter(&msp->ms_lock); 695 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 696 mutex_exit(&msp->ms_lock); 697 } 698} 699 700static void 701print_vdev_metaslab_header(vdev_t *vd) 702{ 703 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 704 (u_longlong_t)vd->vdev_id, 705 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 706 "offset", "spacemap", "free"); 707 (void) printf("\t%15s %19s %15s %10s\n", 708 "---------------", "-------------------", 709 "---------------", "-------------"); 710} 711 712static void 713dump_metaslabs(spa_t *spa) 714{ 715 vdev_t *vd, *rvd = spa->spa_root_vdev; 716 uint64_t m, c = 0, children = rvd->vdev_children; 717 718 (void) printf("\nMetaslabs:\n"); 719 720 if (!dump_opt['d'] && zopt_objects > 0) { 721 c = zopt_object[0]; 722 723 if (c >= children) 724 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 725 726 if (zopt_objects > 1) { 727 vd = rvd->vdev_child[c]; 728 print_vdev_metaslab_header(vd); 729 730 for (m = 1; m < zopt_objects; m++) { 731 if (zopt_object[m] < vd->vdev_ms_count) 732 dump_metaslab( 733 vd->vdev_ms[zopt_object[m]]); 734 else 735 (void) fprintf(stderr, "bad metaslab " 736 "number %llu\n", 737 (u_longlong_t)zopt_object[m]); 738 } 739 (void) printf("\n"); 740 return; 741 } 742 children = c + 1; 743 } 744 for (; c < children; c++) { 745 vd = rvd->vdev_child[c]; 746 print_vdev_metaslab_header(vd); 747 748 for (m = 0; m < vd->vdev_ms_count; m++) 749 dump_metaslab(vd->vdev_ms[m]); 750 (void) printf("\n"); 751 } 752} 753 754static void 755dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 756{ 757 const ddt_phys_t *ddp = dde->dde_phys; 758 const ddt_key_t *ddk = &dde->dde_key; 759 char *types[4] = { "ditto", "single", "double", "triple" }; 760 char blkbuf[BP_SPRINTF_LEN]; 761 blkptr_t blk; 762 763 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 764 if (ddp->ddp_phys_birth == 0) 765 continue; 766 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 767 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 768 (void) printf("index %llx refcnt %llu %s %s\n", 769 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 770 types[p], blkbuf); 771 } 772} 773 774static void 775dump_dedup_ratio(const ddt_stat_t *dds) 776{ 777 double rL, rP, rD, D, dedup, compress, copies; 778 779 if (dds->dds_blocks == 0) 780 return; 781 782 rL = (double)dds->dds_ref_lsize; 783 rP = (double)dds->dds_ref_psize; 784 rD = (double)dds->dds_ref_dsize; 785 D = (double)dds->dds_dsize; 786 787 dedup = rD / D; 788 compress = rL / rP; 789 copies = rD / rP; 790 791 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 792 "dedup * compress / copies = %.2f\n\n", 793 dedup, compress, copies, dedup * compress / copies); 794} 795 796static void 797dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 798{ 799 char name[DDT_NAMELEN]; 800 ddt_entry_t dde; 801 uint64_t walk = 0; 802 dmu_object_info_t doi; 803 uint64_t count, dspace, mspace; 804 int error; 805 806 error = ddt_object_info(ddt, type, class, &doi); 807 808 if (error == ENOENT) 809 return; 810 ASSERT(error == 0); 811 812 error = ddt_object_count(ddt, type, class, &count); 813 ASSERT(error == 0); 814 if (count == 0) 815 return; 816 817 dspace = doi.doi_physical_blocks_512 << 9; 818 mspace = doi.doi_fill_count * doi.doi_data_block_size; 819 820 ddt_object_name(ddt, type, class, name); 821 822 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 823 name, 824 (u_longlong_t)count, 825 (u_longlong_t)(dspace / count), 826 (u_longlong_t)(mspace / count)); 827 828 if (dump_opt['D'] < 3) 829 return; 830 831 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 832 833 if (dump_opt['D'] < 4) 834 return; 835 836 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 837 return; 838 839 (void) printf("%s contents:\n\n", name); 840 841 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 842 dump_dde(ddt, &dde, walk); 843 844 ASSERT(error == ENOENT); 845 846 (void) printf("\n"); 847} 848 849static void 850dump_all_ddts(spa_t *spa) 851{ 852 ddt_histogram_t ddh_total = { 0 }; 853 ddt_stat_t dds_total = { 0 }; 854 855 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 856 ddt_t *ddt = spa->spa_ddt[c]; 857 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 858 for (enum ddt_class class = 0; class < DDT_CLASSES; 859 class++) { 860 dump_ddt(ddt, type, class); 861 } 862 } 863 } 864 865 ddt_get_dedup_stats(spa, &dds_total); 866 867 if (dds_total.dds_blocks == 0) { 868 (void) printf("All DDTs are empty\n"); 869 return; 870 } 871 872 (void) printf("\n"); 873 874 if (dump_opt['D'] > 1) { 875 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 876 ddt_get_dedup_histogram(spa, &ddh_total); 877 zpool_dump_ddt(&dds_total, &ddh_total); 878 } 879 880 dump_dedup_ratio(&dds_total); 881} 882 883static void 884dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 885{ 886 char *prefix = arg; 887 888 (void) printf("%s [%llu,%llu) length %llu\n", 889 prefix, 890 (u_longlong_t)start, 891 (u_longlong_t)(start + size), 892 (u_longlong_t)(size)); 893} 894 895static void 896dump_dtl(vdev_t *vd, int indent) 897{ 898 spa_t *spa = vd->vdev_spa; 899 boolean_t required; 900 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 901 char prefix[256]; 902 903 spa_vdev_state_enter(spa, SCL_NONE); 904 required = vdev_dtl_required(vd); 905 (void) spa_vdev_state_exit(spa, NULL, 0); 906 907 if (indent == 0) 908 (void) printf("\nDirty time logs:\n\n"); 909 910 (void) printf("\t%*s%s [%s]\n", indent, "", 911 vd->vdev_path ? vd->vdev_path : 912 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 913 required ? "DTL-required" : "DTL-expendable"); 914 915 for (int t = 0; t < DTL_TYPES; t++) { 916 range_tree_t *rt = vd->vdev_dtl[t]; 917 if (range_tree_space(rt) == 0) 918 continue; 919 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 920 indent + 2, "", name[t]); 921 mutex_enter(rt->rt_lock); 922 range_tree_walk(rt, dump_dtl_seg, prefix); 923 mutex_exit(rt->rt_lock); 924 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 925 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 926 } 927 928 for (int c = 0; c < vd->vdev_children; c++) 929 dump_dtl(vd->vdev_child[c], indent + 4); 930} 931 932static void 933dump_history(spa_t *spa) 934{ 935 nvlist_t **events = NULL; 936 char buf[SPA_MAXBLOCKSIZE]; 937 uint64_t resid, len, off = 0; 938 uint_t num = 0; 939 int error; 940 time_t tsec; 941 struct tm t; 942 char tbuf[30]; 943 char internalstr[MAXPATHLEN]; 944 945 do { 946 len = sizeof (buf); 947 948 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 949 (void) fprintf(stderr, "Unable to read history: " 950 "error %d\n", error); 951 return; 952 } 953 954 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 955 break; 956 957 off -= resid; 958 } while (len != 0); 959 960 (void) printf("\nHistory:\n"); 961 for (int i = 0; i < num; i++) { 962 uint64_t time, txg, ievent; 963 char *cmd, *intstr; 964 boolean_t printed = B_FALSE; 965 966 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 967 &time) != 0) 968 goto next; 969 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 970 &cmd) != 0) { 971 if (nvlist_lookup_uint64(events[i], 972 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 973 goto next; 974 verify(nvlist_lookup_uint64(events[i], 975 ZPOOL_HIST_TXG, &txg) == 0); 976 verify(nvlist_lookup_string(events[i], 977 ZPOOL_HIST_INT_STR, &intstr) == 0); 978 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 979 goto next; 980 981 (void) snprintf(internalstr, 982 sizeof (internalstr), 983 "[internal %s txg:%lld] %s", 984 zfs_history_event_names[ievent], txg, 985 intstr); 986 cmd = internalstr; 987 } 988 tsec = time; 989 (void) localtime_r(&tsec, &t); 990 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 991 (void) printf("%s %s\n", tbuf, cmd); 992 printed = B_TRUE; 993 994next: 995 if (dump_opt['h'] > 1) { 996 if (!printed) 997 (void) printf("unrecognized record:\n"); 998 dump_nvlist(events[i], 2); 999 } 1000 } 1001} 1002 1003/*ARGSUSED*/ 1004static void 1005dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1006{ 1007} 1008 1009static uint64_t 1010blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1011{ 1012 if (dnp == NULL) { 1013 ASSERT(zb->zb_level < 0); 1014 if (zb->zb_object == 0) 1015 return (zb->zb_blkid); 1016 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1017 } 1018 1019 ASSERT(zb->zb_level >= 0); 1020 1021 return ((zb->zb_blkid << 1022 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1023 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1024} 1025 1026static void 1027snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1028{ 1029 const dva_t *dva = bp->blk_dva; 1030 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1031 1032 if (dump_opt['b'] >= 6) { 1033 snprintf_blkptr(blkbuf, buflen, bp); 1034 return; 1035 } 1036 1037 blkbuf[0] = '\0'; 1038 1039 for (int i = 0; i < ndvas; i++) 1040 (void) snprintf(blkbuf + strlen(blkbuf), 1041 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1042 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1043 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1044 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1045 1046 if (BP_IS_HOLE(bp)) { 1047 (void) snprintf(blkbuf + strlen(blkbuf), 1048 buflen - strlen(blkbuf), "B=%llu", 1049 (u_longlong_t)bp->blk_birth); 1050 } else { 1051 (void) snprintf(blkbuf + strlen(blkbuf), 1052 buflen - strlen(blkbuf), 1053 "%llxL/%llxP F=%llu B=%llu/%llu", 1054 (u_longlong_t)BP_GET_LSIZE(bp), 1055 (u_longlong_t)BP_GET_PSIZE(bp), 1056 (u_longlong_t)bp->blk_fill, 1057 (u_longlong_t)bp->blk_birth, 1058 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1059 } 1060} 1061 1062static void 1063print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1064 const dnode_phys_t *dnp) 1065{ 1066 char blkbuf[BP_SPRINTF_LEN]; 1067 int l; 1068 1069 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1070 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1071 1072 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1073 1074 ASSERT(zb->zb_level >= 0); 1075 1076 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1077 if (l == zb->zb_level) { 1078 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1079 } else { 1080 (void) printf(" "); 1081 } 1082 } 1083 1084 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1085 (void) printf("%s\n", blkbuf); 1086} 1087 1088static int 1089visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1090 blkptr_t *bp, const zbookmark_t *zb) 1091{ 1092 int err = 0; 1093 1094 if (bp->blk_birth == 0) 1095 return (0); 1096 1097 print_indirect(bp, zb, dnp); 1098 1099 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1100 uint32_t flags = ARC_WAIT; 1101 int i; 1102 blkptr_t *cbp; 1103 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1104 arc_buf_t *buf; 1105 uint64_t fill = 0; 1106 1107 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1108 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1109 if (err) 1110 return (err); 1111 ASSERT(buf->b_data); 1112 1113 /* recursively visit blocks below this */ 1114 cbp = buf->b_data; 1115 for (i = 0; i < epb; i++, cbp++) { 1116 zbookmark_t czb; 1117 1118 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1119 zb->zb_level - 1, 1120 zb->zb_blkid * epb + i); 1121 err = visit_indirect(spa, dnp, cbp, &czb); 1122 if (err) 1123 break; 1124 fill += cbp->blk_fill; 1125 } 1126 if (!err) 1127 ASSERT3U(fill, ==, bp->blk_fill); 1128 (void) arc_buf_remove_ref(buf, &buf); 1129 } 1130 1131 return (err); 1132} 1133 1134/*ARGSUSED*/ 1135static void 1136dump_indirect(dnode_t *dn) 1137{ 1138 dnode_phys_t *dnp = dn->dn_phys; 1139 int j; 1140 zbookmark_t czb; 1141 1142 (void) printf("Indirect blocks:\n"); 1143 1144 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1145 dn->dn_object, dnp->dn_nlevels - 1, 0); 1146 for (j = 0; j < dnp->dn_nblkptr; j++) { 1147 czb.zb_blkid = j; 1148 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1149 &dnp->dn_blkptr[j], &czb); 1150 } 1151 1152 (void) printf("\n"); 1153} 1154 1155/*ARGSUSED*/ 1156static void 1157dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1158{ 1159 dsl_dir_phys_t *dd = data; 1160 time_t crtime; 1161 char nice[32]; 1162 1163 if (dd == NULL) 1164 return; 1165 1166 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1167 1168 crtime = dd->dd_creation_time; 1169 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1170 (void) printf("\t\thead_dataset_obj = %llu\n", 1171 (u_longlong_t)dd->dd_head_dataset_obj); 1172 (void) printf("\t\tparent_dir_obj = %llu\n", 1173 (u_longlong_t)dd->dd_parent_obj); 1174 (void) printf("\t\torigin_obj = %llu\n", 1175 (u_longlong_t)dd->dd_origin_obj); 1176 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1177 (u_longlong_t)dd->dd_child_dir_zapobj); 1178 zdb_nicenum(dd->dd_used_bytes, nice); 1179 (void) printf("\t\tused_bytes = %s\n", nice); 1180 zdb_nicenum(dd->dd_compressed_bytes, nice); 1181 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1182 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1183 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1184 zdb_nicenum(dd->dd_quota, nice); 1185 (void) printf("\t\tquota = %s\n", nice); 1186 zdb_nicenum(dd->dd_reserved, nice); 1187 (void) printf("\t\treserved = %s\n", nice); 1188 (void) printf("\t\tprops_zapobj = %llu\n", 1189 (u_longlong_t)dd->dd_props_zapobj); 1190 (void) printf("\t\tdeleg_zapobj = %llu\n", 1191 (u_longlong_t)dd->dd_deleg_zapobj); 1192 (void) printf("\t\tflags = %llx\n", 1193 (u_longlong_t)dd->dd_flags); 1194 1195#define DO(which) \ 1196 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1197 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1198 DO(HEAD); 1199 DO(SNAP); 1200 DO(CHILD); 1201 DO(CHILD_RSRV); 1202 DO(REFRSRV); 1203#undef DO 1204} 1205 1206/*ARGSUSED*/ 1207static void 1208dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1209{ 1210 dsl_dataset_phys_t *ds = data; 1211 time_t crtime; 1212 char used[32], compressed[32], uncompressed[32], unique[32]; 1213 char blkbuf[BP_SPRINTF_LEN]; 1214 1215 if (ds == NULL) 1216 return; 1217 1218 ASSERT(size == sizeof (*ds)); 1219 crtime = ds->ds_creation_time; 1220 zdb_nicenum(ds->ds_referenced_bytes, used); 1221 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1222 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1223 zdb_nicenum(ds->ds_unique_bytes, unique); 1224 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1225 1226 (void) printf("\t\tdir_obj = %llu\n", 1227 (u_longlong_t)ds->ds_dir_obj); 1228 (void) printf("\t\tprev_snap_obj = %llu\n", 1229 (u_longlong_t)ds->ds_prev_snap_obj); 1230 (void) printf("\t\tprev_snap_txg = %llu\n", 1231 (u_longlong_t)ds->ds_prev_snap_txg); 1232 (void) printf("\t\tnext_snap_obj = %llu\n", 1233 (u_longlong_t)ds->ds_next_snap_obj); 1234 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1235 (u_longlong_t)ds->ds_snapnames_zapobj); 1236 (void) printf("\t\tnum_children = %llu\n", 1237 (u_longlong_t)ds->ds_num_children); 1238 (void) printf("\t\tuserrefs_obj = %llu\n", 1239 (u_longlong_t)ds->ds_userrefs_obj); 1240 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1241 (void) printf("\t\tcreation_txg = %llu\n", 1242 (u_longlong_t)ds->ds_creation_txg); 1243 (void) printf("\t\tdeadlist_obj = %llu\n", 1244 (u_longlong_t)ds->ds_deadlist_obj); 1245 (void) printf("\t\tused_bytes = %s\n", used); 1246 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1247 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1248 (void) printf("\t\tunique = %s\n", unique); 1249 (void) printf("\t\tfsid_guid = %llu\n", 1250 (u_longlong_t)ds->ds_fsid_guid); 1251 (void) printf("\t\tguid = %llu\n", 1252 (u_longlong_t)ds->ds_guid); 1253 (void) printf("\t\tflags = %llx\n", 1254 (u_longlong_t)ds->ds_flags); 1255 (void) printf("\t\tnext_clones_obj = %llu\n", 1256 (u_longlong_t)ds->ds_next_clones_obj); 1257 (void) printf("\t\tprops_obj = %llu\n", 1258 (u_longlong_t)ds->ds_props_obj); 1259 (void) printf("\t\tbp = %s\n", blkbuf); 1260} 1261 1262/* ARGSUSED */ 1263static int 1264dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1265{ 1266 char blkbuf[BP_SPRINTF_LEN]; 1267 1268 if (bp->blk_birth != 0) { 1269 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1270 (void) printf("\t%s\n", blkbuf); 1271 } 1272 return (0); 1273} 1274 1275static void 1276dump_bptree(objset_t *os, uint64_t obj, char *name) 1277{ 1278 char bytes[32]; 1279 bptree_phys_t *bt; 1280 dmu_buf_t *db; 1281 1282 if (dump_opt['d'] < 3) 1283 return; 1284 1285 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1286 bt = db->db_data; 1287 zdb_nicenum(bt->bt_bytes, bytes); 1288 (void) printf("\n %s: %llu datasets, %s\n", 1289 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1290 dmu_buf_rele(db, FTAG); 1291 1292 if (dump_opt['d'] < 5) 1293 return; 1294 1295 (void) printf("\n"); 1296 1297 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1298} 1299 1300/* ARGSUSED */ 1301static int 1302dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1303{ 1304 char blkbuf[BP_SPRINTF_LEN]; 1305 1306 ASSERT(bp->blk_birth != 0); 1307 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1308 (void) printf("\t%s\n", blkbuf); 1309 return (0); 1310} 1311 1312static void 1313dump_bpobj(bpobj_t *bpo, char *name, int indent) 1314{ 1315 char bytes[32]; 1316 char comp[32]; 1317 char uncomp[32]; 1318 1319 if (dump_opt['d'] < 3) 1320 return; 1321 1322 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1323 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1324 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1325 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1326 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1327 "%llu subobjs, %s (%s/%s comp)\n", 1328 indent * 8, name, 1329 (u_longlong_t)bpo->bpo_object, 1330 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1331 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1332 bytes, comp, uncomp); 1333 1334 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1335 uint64_t subobj; 1336 bpobj_t subbpo; 1337 int error; 1338 VERIFY0(dmu_read(bpo->bpo_os, 1339 bpo->bpo_phys->bpo_subobjs, 1340 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1341 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1342 if (error != 0) { 1343 (void) printf("ERROR %u while trying to open " 1344 "subobj id %llu\n", 1345 error, (u_longlong_t)subobj); 1346 continue; 1347 } 1348 dump_bpobj(&subbpo, "subobj", indent + 1); 1349 bpobj_close(&subbpo); 1350 } 1351 } else { 1352 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1353 indent * 8, name, 1354 (u_longlong_t)bpo->bpo_object, 1355 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1356 bytes); 1357 } 1358 1359 if (dump_opt['d'] < 5) 1360 return; 1361 1362 1363 if (indent == 0) { 1364 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1365 (void) printf("\n"); 1366 } 1367} 1368 1369static void 1370dump_deadlist(dsl_deadlist_t *dl) 1371{ 1372 dsl_deadlist_entry_t *dle; 1373 uint64_t unused; 1374 char bytes[32]; 1375 char comp[32]; 1376 char uncomp[32]; 1377 1378 if (dump_opt['d'] < 3) 1379 return; 1380 1381 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1382 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1383 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1384 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1385 bytes, comp, uncomp); 1386 1387 if (dump_opt['d'] < 4) 1388 return; 1389 1390 (void) printf("\n"); 1391 1392 /* force the tree to be loaded */ 1393 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1394 1395 for (dle = avl_first(&dl->dl_tree); dle; 1396 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1397 if (dump_opt['d'] >= 5) { 1398 char buf[128]; 1399 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1400 (longlong_t)dle->dle_mintxg, 1401 (longlong_t)dle->dle_bpobj.bpo_object); 1402 1403 dump_bpobj(&dle->dle_bpobj, buf, 0); 1404 } else { 1405 (void) printf("mintxg %llu -> obj %llu\n", 1406 (longlong_t)dle->dle_mintxg, 1407 (longlong_t)dle->dle_bpobj.bpo_object); 1408 1409 } 1410 } 1411} 1412 1413static avl_tree_t idx_tree; 1414static avl_tree_t domain_tree; 1415static boolean_t fuid_table_loaded; 1416static boolean_t sa_loaded; 1417sa_attr_type_t *sa_attr_table; 1418 1419static void 1420fuid_table_destroy() 1421{ 1422 if (fuid_table_loaded) { 1423 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1424 fuid_table_loaded = B_FALSE; 1425 } 1426} 1427 1428/* 1429 * print uid or gid information. 1430 * For normal POSIX id just the id is printed in decimal format. 1431 * For CIFS files with FUID the fuid is printed in hex followed by 1432 * the domain-rid string. 1433 */ 1434static void 1435print_idstr(uint64_t id, const char *id_type) 1436{ 1437 if (FUID_INDEX(id)) { 1438 char *domain; 1439 1440 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1441 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1442 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1443 } else { 1444 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1445 } 1446 1447} 1448 1449static void 1450dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1451{ 1452 uint32_t uid_idx, gid_idx; 1453 1454 uid_idx = FUID_INDEX(uid); 1455 gid_idx = FUID_INDEX(gid); 1456 1457 /* Load domain table, if not already loaded */ 1458 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1459 uint64_t fuid_obj; 1460 1461 /* first find the fuid object. It lives in the master node */ 1462 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1463 8, 1, &fuid_obj) == 0); 1464 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1465 (void) zfs_fuid_table_load(os, fuid_obj, 1466 &idx_tree, &domain_tree); 1467 fuid_table_loaded = B_TRUE; 1468 } 1469 1470 print_idstr(uid, "uid"); 1471 print_idstr(gid, "gid"); 1472} 1473 1474/*ARGSUSED*/ 1475static void 1476dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1477{ 1478 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1479 sa_handle_t *hdl; 1480 uint64_t xattr, rdev, gen; 1481 uint64_t uid, gid, mode, fsize, parent, links; 1482 uint64_t pflags; 1483 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1484 time_t z_crtime, z_atime, z_mtime, z_ctime; 1485 sa_bulk_attr_t bulk[12]; 1486 int idx = 0; 1487 int error; 1488 1489 if (!sa_loaded) { 1490 uint64_t sa_attrs = 0; 1491 uint64_t version; 1492 1493 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1494 8, 1, &version) == 0); 1495 if (version >= ZPL_VERSION_SA) { 1496 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1497 8, 1, &sa_attrs) == 0); 1498 } 1499 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1500 ZPL_END, &sa_attr_table)) != 0) { 1501 (void) printf("sa_setup failed errno %d, can't " 1502 "display znode contents\n", error); 1503 return; 1504 } 1505 sa_loaded = B_TRUE; 1506 } 1507 1508 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1509 (void) printf("Failed to get handle for SA znode\n"); 1510 return; 1511 } 1512 1513 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1514 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1515 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1516 &links, 8); 1517 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1519 &mode, 8); 1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1521 NULL, &parent, 8); 1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1523 &fsize, 8); 1524 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1525 acctm, 16); 1526 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1527 modtm, 16); 1528 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1529 crtm, 16); 1530 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1531 chgtm, 16); 1532 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1533 &pflags, 8); 1534 1535 if (sa_bulk_lookup(hdl, bulk, idx)) { 1536 (void) sa_handle_destroy(hdl); 1537 return; 1538 } 1539 1540 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1541 if (error != 0) { 1542 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1543 (u_longlong_t)object); 1544 } 1545 if (dump_opt['d'] < 3) { 1546 (void) printf("\t%s\n", path); 1547 (void) sa_handle_destroy(hdl); 1548 return; 1549 } 1550 1551 z_crtime = (time_t)crtm[0]; 1552 z_atime = (time_t)acctm[0]; 1553 z_mtime = (time_t)modtm[0]; 1554 z_ctime = (time_t)chgtm[0]; 1555 1556 (void) printf("\tpath %s\n", path); 1557 dump_uidgid(os, uid, gid); 1558 (void) printf("\tatime %s", ctime(&z_atime)); 1559 (void) printf("\tmtime %s", ctime(&z_mtime)); 1560 (void) printf("\tctime %s", ctime(&z_ctime)); 1561 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1562 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1563 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1564 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1565 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1566 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1567 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1568 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1569 sizeof (uint64_t)) == 0) 1570 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1571 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1572 sizeof (uint64_t)) == 0) 1573 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1574 sa_handle_destroy(hdl); 1575} 1576 1577/*ARGSUSED*/ 1578static void 1579dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1580{ 1581} 1582 1583/*ARGSUSED*/ 1584static void 1585dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1586{ 1587} 1588 1589static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1590 dump_none, /* unallocated */ 1591 dump_zap, /* object directory */ 1592 dump_uint64, /* object array */ 1593 dump_none, /* packed nvlist */ 1594 dump_packed_nvlist, /* packed nvlist size */ 1595 dump_none, /* bplist */ 1596 dump_none, /* bplist header */ 1597 dump_none, /* SPA space map header */ 1598 dump_none, /* SPA space map */ 1599 dump_none, /* ZIL intent log */ 1600 dump_dnode, /* DMU dnode */ 1601 dump_dmu_objset, /* DMU objset */ 1602 dump_dsl_dir, /* DSL directory */ 1603 dump_zap, /* DSL directory child map */ 1604 dump_zap, /* DSL dataset snap map */ 1605 dump_zap, /* DSL props */ 1606 dump_dsl_dataset, /* DSL dataset */ 1607 dump_znode, /* ZFS znode */ 1608 dump_acl, /* ZFS V0 ACL */ 1609 dump_uint8, /* ZFS plain file */ 1610 dump_zpldir, /* ZFS directory */ 1611 dump_zap, /* ZFS master node */ 1612 dump_zap, /* ZFS delete queue */ 1613 dump_uint8, /* zvol object */ 1614 dump_zap, /* zvol prop */ 1615 dump_uint8, /* other uint8[] */ 1616 dump_uint64, /* other uint64[] */ 1617 dump_zap, /* other ZAP */ 1618 dump_zap, /* persistent error log */ 1619 dump_uint8, /* SPA history */ 1620 dump_history_offsets, /* SPA history offsets */ 1621 dump_zap, /* Pool properties */ 1622 dump_zap, /* DSL permissions */ 1623 dump_acl, /* ZFS ACL */ 1624 dump_uint8, /* ZFS SYSACL */ 1625 dump_none, /* FUID nvlist */ 1626 dump_packed_nvlist, /* FUID nvlist size */ 1627 dump_zap, /* DSL dataset next clones */ 1628 dump_zap, /* DSL scrub queue */ 1629 dump_zap, /* ZFS user/group used */ 1630 dump_zap, /* ZFS user/group quota */ 1631 dump_zap, /* snapshot refcount tags */ 1632 dump_ddt_zap, /* DDT ZAP object */ 1633 dump_zap, /* DDT statistics */ 1634 dump_znode, /* SA object */ 1635 dump_zap, /* SA Master Node */ 1636 dump_sa_attrs, /* SA attribute registration */ 1637 dump_sa_layouts, /* SA attribute layouts */ 1638 dump_zap, /* DSL scrub translations */ 1639 dump_none, /* fake dedup BP */ 1640 dump_zap, /* deadlist */ 1641 dump_none, /* deadlist hdr */ 1642 dump_zap, /* dsl clones */ 1643 dump_none, /* bpobj subobjs */ 1644 dump_unknown, /* Unknown type, must be last */ 1645}; 1646 1647static void 1648dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1649{ 1650 dmu_buf_t *db = NULL; 1651 dmu_object_info_t doi; 1652 dnode_t *dn; 1653 void *bonus = NULL; 1654 size_t bsize = 0; 1655 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1656 char bonus_size[32]; 1657 char aux[50]; 1658 int error; 1659 1660 if (*print_header) { 1661 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1662 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1663 "%full", "type"); 1664 *print_header = 0; 1665 } 1666 1667 if (object == 0) { 1668 dn = DMU_META_DNODE(os); 1669 } else { 1670 error = dmu_bonus_hold(os, object, FTAG, &db); 1671 if (error) 1672 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1673 object, error); 1674 bonus = db->db_data; 1675 bsize = db->db_size; 1676 dn = DB_DNODE((dmu_buf_impl_t *)db); 1677 } 1678 dmu_object_info_from_dnode(dn, &doi); 1679 1680 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1681 zdb_nicenum(doi.doi_data_block_size, dblk); 1682 zdb_nicenum(doi.doi_max_offset, lsize); 1683 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1684 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1685 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1686 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1687 doi.doi_max_offset); 1688 1689 aux[0] = '\0'; 1690 1691 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1692 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1693 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1694 } 1695 1696 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1697 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1698 ZDB_COMPRESS_NAME(doi.doi_compress)); 1699 } 1700 1701 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1702 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1703 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1704 1705 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1706 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1707 "", "", "", "", "", bonus_size, "bonus", 1708 ZDB_OT_NAME(doi.doi_bonus_type)); 1709 } 1710 1711 if (verbosity >= 4) { 1712 (void) printf("\tdnode flags: %s%s%s\n", 1713 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1714 "USED_BYTES " : "", 1715 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1716 "USERUSED_ACCOUNTED " : "", 1717 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1718 "SPILL_BLKPTR" : ""); 1719 (void) printf("\tdnode maxblkid: %llu\n", 1720 (longlong_t)dn->dn_phys->dn_maxblkid); 1721 1722 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1723 bonus, bsize); 1724 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1725 *print_header = 1; 1726 } 1727 1728 if (verbosity >= 5) 1729 dump_indirect(dn); 1730 1731 if (verbosity >= 5) { 1732 /* 1733 * Report the list of segments that comprise the object. 1734 */ 1735 uint64_t start = 0; 1736 uint64_t end; 1737 uint64_t blkfill = 1; 1738 int minlvl = 1; 1739 1740 if (dn->dn_type == DMU_OT_DNODE) { 1741 minlvl = 0; 1742 blkfill = DNODES_PER_BLOCK; 1743 } 1744 1745 for (;;) { 1746 char segsize[32]; 1747 error = dnode_next_offset(dn, 1748 0, &start, minlvl, blkfill, 0); 1749 if (error) 1750 break; 1751 end = start; 1752 error = dnode_next_offset(dn, 1753 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1754 zdb_nicenum(end - start, segsize); 1755 (void) printf("\t\tsegment [%016llx, %016llx)" 1756 " size %5s\n", (u_longlong_t)start, 1757 (u_longlong_t)end, segsize); 1758 if (error) 1759 break; 1760 start = end; 1761 } 1762 } 1763 1764 if (db != NULL) 1765 dmu_buf_rele(db, FTAG); 1766} 1767 1768static char *objset_types[DMU_OST_NUMTYPES] = { 1769 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1770 1771static void 1772dump_dir(objset_t *os) 1773{ 1774 dmu_objset_stats_t dds; 1775 uint64_t object, object_count; 1776 uint64_t refdbytes, usedobjs, scratch; 1777 char numbuf[32]; 1778 char blkbuf[BP_SPRINTF_LEN + 20]; 1779 char osname[MAXNAMELEN]; 1780 char *type = "UNKNOWN"; 1781 int verbosity = dump_opt['d']; 1782 int print_header = 1; 1783 int i, error; 1784 1785 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1786 dmu_objset_fast_stat(os, &dds); 1787 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1788 1789 if (dds.dds_type < DMU_OST_NUMTYPES) 1790 type = objset_types[dds.dds_type]; 1791 1792 if (dds.dds_type == DMU_OST_META) { 1793 dds.dds_creation_txg = TXG_INITIAL; 1794 usedobjs = os->os_rootbp->blk_fill; 1795 refdbytes = os->os_spa->spa_dsl_pool-> 1796 dp_mos_dir->dd_phys->dd_used_bytes; 1797 } else { 1798 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1799 } 1800 1801 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1802 1803 zdb_nicenum(refdbytes, numbuf); 1804 1805 if (verbosity >= 4) { 1806 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1807 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1808 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1809 } else { 1810 blkbuf[0] = '\0'; 1811 } 1812 1813 dmu_objset_name(os, osname); 1814 1815 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1816 "%s, %llu objects%s\n", 1817 osname, type, (u_longlong_t)dmu_objset_id(os), 1818 (u_longlong_t)dds.dds_creation_txg, 1819 numbuf, (u_longlong_t)usedobjs, blkbuf); 1820 1821 if (zopt_objects != 0) { 1822 for (i = 0; i < zopt_objects; i++) 1823 dump_object(os, zopt_object[i], verbosity, 1824 &print_header); 1825 (void) printf("\n"); 1826 return; 1827 } 1828 1829 if (dump_opt['i'] != 0 || verbosity >= 2) 1830 dump_intent_log(dmu_objset_zil(os)); 1831 1832 if (dmu_objset_ds(os) != NULL) 1833 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1834 1835 if (verbosity < 2) 1836 return; 1837 1838 if (BP_IS_HOLE(os->os_rootbp)) 1839 return; 1840 1841 dump_object(os, 0, verbosity, &print_header); 1842 object_count = 0; 1843 if (DMU_USERUSED_DNODE(os) != NULL && 1844 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1845 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1846 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1847 } 1848 1849 object = 0; 1850 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1851 dump_object(os, object, verbosity, &print_header); 1852 object_count++; 1853 } 1854 1855 ASSERT3U(object_count, ==, usedobjs); 1856 1857 (void) printf("\n"); 1858 1859 if (error != ESRCH) { 1860 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1861 abort(); 1862 } 1863} 1864 1865static void 1866dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1867{ 1868 time_t timestamp = ub->ub_timestamp; 1869 1870 (void) printf(header ? header : ""); 1871 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1872 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1873 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1874 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1875 (void) printf("\ttimestamp = %llu UTC = %s", 1876 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1877 if (dump_opt['u'] >= 3) { 1878 char blkbuf[BP_SPRINTF_LEN]; 1879 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1880 (void) printf("\trootbp = %s\n", blkbuf); 1881 } 1882 (void) printf(footer ? footer : ""); 1883} 1884 1885static void 1886dump_config(spa_t *spa) 1887{ 1888 dmu_buf_t *db; 1889 size_t nvsize = 0; 1890 int error = 0; 1891 1892 1893 error = dmu_bonus_hold(spa->spa_meta_objset, 1894 spa->spa_config_object, FTAG, &db); 1895 1896 if (error == 0) { 1897 nvsize = *(uint64_t *)db->db_data; 1898 dmu_buf_rele(db, FTAG); 1899 1900 (void) printf("\nMOS Configuration:\n"); 1901 dump_packed_nvlist(spa->spa_meta_objset, 1902 spa->spa_config_object, (void *)&nvsize, 1); 1903 } else { 1904 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1905 (u_longlong_t)spa->spa_config_object, error); 1906 } 1907} 1908 1909static void 1910dump_cachefile(const char *cachefile) 1911{ 1912 int fd; 1913 struct stat64 statbuf; 1914 char *buf; 1915 nvlist_t *config; 1916 1917 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1918 (void) printf("cannot open '%s': %s\n", cachefile, 1919 strerror(errno)); 1920 exit(1); 1921 } 1922 1923 if (fstat64(fd, &statbuf) != 0) { 1924 (void) printf("failed to stat '%s': %s\n", cachefile, 1925 strerror(errno)); 1926 exit(1); 1927 } 1928 1929 if ((buf = malloc(statbuf.st_size)) == NULL) { 1930 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1931 (u_longlong_t)statbuf.st_size); 1932 exit(1); 1933 } 1934 1935 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1936 (void) fprintf(stderr, "failed to read %llu bytes\n", 1937 (u_longlong_t)statbuf.st_size); 1938 exit(1); 1939 } 1940 1941 (void) close(fd); 1942 1943 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1944 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1945 exit(1); 1946 } 1947 1948 free(buf); 1949 1950 dump_nvlist(config, 0); 1951 1952 nvlist_free(config); 1953} 1954 1955#define ZDB_MAX_UB_HEADER_SIZE 32 1956 1957static void 1958dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1959{ 1960 vdev_t vd; 1961 vdev_t *vdp = &vd; 1962 char header[ZDB_MAX_UB_HEADER_SIZE]; 1963 1964 vd.vdev_ashift = ashift; 1965 vdp->vdev_top = vdp; 1966 1967 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1968 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1969 uberblock_t *ub = (void *)((char *)lbl + uoff); 1970 1971 if (uberblock_verify(ub)) 1972 continue; 1973 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1974 "Uberblock[%d]\n", i); 1975 dump_uberblock(ub, header, ""); 1976 } 1977} 1978 1979static void 1980dump_label(const char *dev) 1981{ 1982 int fd; 1983 vdev_label_t label; 1984 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1985 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1986 struct stat64 statbuf; 1987 uint64_t psize, ashift; 1988 int len = strlen(dev) + 1; 1989 1990 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1991 len++; 1992 path = malloc(len); 1993 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1994 } else { 1995 path = strdup(dev); 1996 } 1997 1998 if ((fd = open64(path, O_RDONLY)) < 0) { 1999 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2000 free(path); 2001 exit(1); 2002 } 2003 2004 if (fstat64(fd, &statbuf) != 0) { 2005 (void) printf("failed to stat '%s': %s\n", path, 2006 strerror(errno)); 2007 free(path); 2008 (void) close(fd); 2009 exit(1); 2010 } 2011 2012 if (S_ISBLK(statbuf.st_mode)) { 2013 (void) printf("cannot use '%s': character device required\n", 2014 path); 2015 free(path); 2016 (void) close(fd); 2017 exit(1); 2018 } 2019 2020 psize = statbuf.st_size; 2021 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2022 2023 for (int l = 0; l < VDEV_LABELS; l++) { 2024 nvlist_t *config = NULL; 2025 2026 (void) printf("--------------------------------------------\n"); 2027 (void) printf("LABEL %d\n", l); 2028 (void) printf("--------------------------------------------\n"); 2029 2030 if (pread64(fd, &label, sizeof (label), 2031 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2032 (void) printf("failed to read label %d\n", l); 2033 continue; 2034 } 2035 2036 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2037 (void) printf("failed to unpack label %d\n", l); 2038 ashift = SPA_MINBLOCKSHIFT; 2039 } else { 2040 nvlist_t *vdev_tree = NULL; 2041 2042 dump_nvlist(config, 4); 2043 if ((nvlist_lookup_nvlist(config, 2044 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2045 (nvlist_lookup_uint64(vdev_tree, 2046 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2047 ashift = SPA_MINBLOCKSHIFT; 2048 nvlist_free(config); 2049 } 2050 if (dump_opt['u']) 2051 dump_label_uberblocks(&label, ashift); 2052 } 2053 2054 free(path); 2055 (void) close(fd); 2056} 2057 2058/*ARGSUSED*/ 2059static int 2060dump_one_dir(const char *dsname, void *arg) 2061{ 2062 int error; 2063 objset_t *os; 2064 2065 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2066 if (error) { 2067 (void) printf("Could not open %s, error %d\n", dsname, error); 2068 return (0); 2069 } 2070 dump_dir(os); 2071 dmu_objset_disown(os, FTAG); 2072 fuid_table_destroy(); 2073 sa_loaded = B_FALSE; 2074 return (0); 2075} 2076 2077/* 2078 * Block statistics. 2079 */ 2080#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2081typedef struct zdb_blkstats { 2082 uint64_t zb_asize; 2083 uint64_t zb_lsize; 2084 uint64_t zb_psize; 2085 uint64_t zb_count; 2086 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2087} zdb_blkstats_t; 2088 2089/* 2090 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2091 */ 2092#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2093#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2094#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2095#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2096 2097static char *zdb_ot_extname[] = { 2098 "deferred free", 2099 "dedup ditto", 2100 "other", 2101 "Total", 2102}; 2103 2104#define ZB_TOTAL DN_MAX_LEVELS 2105 2106typedef struct zdb_cb { 2107 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2108 uint64_t zcb_dedup_asize; 2109 uint64_t zcb_dedup_blocks; 2110 uint64_t zcb_start; 2111 uint64_t zcb_lastprint; 2112 uint64_t zcb_totalasize; 2113 uint64_t zcb_errors[256]; 2114 int zcb_readfails; 2115 int zcb_haderrors; 2116 spa_t *zcb_spa; 2117} zdb_cb_t; 2118 2119static void 2120zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2121 dmu_object_type_t type) 2122{ 2123 uint64_t refcnt = 0; 2124 2125 ASSERT(type < ZDB_OT_TOTAL); 2126 2127 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2128 return; 2129 2130 for (int i = 0; i < 4; i++) { 2131 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2132 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2133 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2134 2135 zb->zb_asize += BP_GET_ASIZE(bp); 2136 zb->zb_lsize += BP_GET_LSIZE(bp); 2137 zb->zb_psize += BP_GET_PSIZE(bp); 2138 zb->zb_count++; 2139 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2140 } 2141 2142 if (dump_opt['L']) 2143 return; 2144 2145 if (BP_GET_DEDUP(bp)) { 2146 ddt_t *ddt; 2147 ddt_entry_t *dde; 2148 2149 ddt = ddt_select(zcb->zcb_spa, bp); 2150 ddt_enter(ddt); 2151 dde = ddt_lookup(ddt, bp, B_FALSE); 2152 2153 if (dde == NULL) { 2154 refcnt = 0; 2155 } else { 2156 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2157 ddt_phys_decref(ddp); 2158 refcnt = ddp->ddp_refcnt; 2159 if (ddt_phys_total_refcnt(dde) == 0) 2160 ddt_remove(ddt, dde); 2161 } 2162 ddt_exit(ddt); 2163 } 2164 2165 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2166 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2167 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2168} 2169 2170/* ARGSUSED */ 2171static void 2172zdb_blkptr_done(zio_t *zio) 2173{ 2174 spa_t *spa = zio->io_spa; 2175 blkptr_t *bp = zio->io_bp; 2176 int ioerr = zio->io_error; 2177 zdb_cb_t *zcb = zio->io_private; 2178 zbookmark_t *zb = &zio->io_bookmark; 2179 2180 zio_data_buf_free(zio->io_data, zio->io_size); 2181 2182 mutex_enter(&spa->spa_scrub_lock); 2183 spa->spa_scrub_inflight--; 2184 cv_broadcast(&spa->spa_scrub_io_cv); 2185 2186 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2187 char blkbuf[BP_SPRINTF_LEN]; 2188 2189 zcb->zcb_haderrors = 1; 2190 zcb->zcb_errors[ioerr]++; 2191 2192 if (dump_opt['b'] >= 2) 2193 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2194 else 2195 blkbuf[0] = '\0'; 2196 2197 (void) printf("zdb_blkptr_cb: " 2198 "Got error %d reading " 2199 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2200 ioerr, 2201 (u_longlong_t)zb->zb_objset, 2202 (u_longlong_t)zb->zb_object, 2203 (u_longlong_t)zb->zb_level, 2204 (u_longlong_t)zb->zb_blkid, 2205 blkbuf); 2206 } 2207 mutex_exit(&spa->spa_scrub_lock); 2208} 2209 2210/* ARGSUSED */ 2211static int 2212zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2213 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2214{ 2215 zdb_cb_t *zcb = arg; 2216 dmu_object_type_t type; 2217 boolean_t is_metadata; 2218 2219 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2220 char blkbuf[BP_SPRINTF_LEN]; 2221 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2222 (void) printf("objset %llu object %llu " 2223 "level %lld offset 0x%llx %s\n", 2224 (u_longlong_t)zb->zb_objset, 2225 (u_longlong_t)zb->zb_object, 2226 (longlong_t)zb->zb_level, 2227 (u_longlong_t)blkid2offset(dnp, bp, zb), 2228 blkbuf); 2229 } 2230 2231 if (BP_IS_HOLE(bp)) 2232 return (0); 2233 2234 type = BP_GET_TYPE(bp); 2235 2236 zdb_count_block(zcb, zilog, bp, 2237 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2238 2239 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2240 2241 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2242 size_t size = BP_GET_PSIZE(bp); 2243 void *data = zio_data_buf_alloc(size); 2244 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2245 2246 /* If it's an intent log block, failure is expected. */ 2247 if (zb->zb_level == ZB_ZIL_LEVEL) 2248 flags |= ZIO_FLAG_SPECULATIVE; 2249 2250 mutex_enter(&spa->spa_scrub_lock); 2251 while (spa->spa_scrub_inflight > max_inflight) 2252 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2253 spa->spa_scrub_inflight++; 2254 mutex_exit(&spa->spa_scrub_lock); 2255 2256 zio_nowait(zio_read(NULL, spa, bp, data, size, 2257 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2258 } 2259 2260 zcb->zcb_readfails = 0; 2261 2262 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2263 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2264 uint64_t now = gethrtime(); 2265 char buf[10]; 2266 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2267 int kb_per_sec = 2268 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2269 int sec_remaining = 2270 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2271 2272 zfs_nicenum(bytes, buf, sizeof (buf)); 2273 (void) fprintf(stderr, 2274 "\r%5s completed (%4dMB/s) " 2275 "estimated time remaining: %uhr %02umin %02usec ", 2276 buf, kb_per_sec / 1024, 2277 sec_remaining / 60 / 60, 2278 sec_remaining / 60 % 60, 2279 sec_remaining % 60); 2280 2281 zcb->zcb_lastprint = now; 2282 } 2283 2284 return (0); 2285} 2286 2287static void 2288zdb_leak(void *arg, uint64_t start, uint64_t size) 2289{ 2290 vdev_t *vd = arg; 2291 2292 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2293 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2294} 2295 2296static metaslab_ops_t zdb_metaslab_ops = { 2297 NULL, /* alloc */ 2298 NULL /* fragmented */ 2299}; 2300 2301static void 2302zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2303{ 2304 ddt_bookmark_t ddb = { 0 }; 2305 ddt_entry_t dde; 2306 int error; 2307 2308 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2309 blkptr_t blk; 2310 ddt_phys_t *ddp = dde.dde_phys; 2311 2312 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2313 return; 2314 2315 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2316 2317 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2318 if (ddp->ddp_phys_birth == 0) 2319 continue; 2320 ddt_bp_create(ddb.ddb_checksum, 2321 &dde.dde_key, ddp, &blk); 2322 if (p == DDT_PHYS_DITTO) { 2323 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2324 } else { 2325 zcb->zcb_dedup_asize += 2326 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2327 zcb->zcb_dedup_blocks++; 2328 } 2329 } 2330 if (!dump_opt['L']) { 2331 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2332 ddt_enter(ddt); 2333 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2334 ddt_exit(ddt); 2335 } 2336 } 2337 2338 ASSERT(error == ENOENT); 2339} 2340 2341static void 2342zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2343{ 2344 zcb->zcb_spa = spa; 2345 2346 if (!dump_opt['L']) { 2347 vdev_t *rvd = spa->spa_root_vdev; 2348 for (int c = 0; c < rvd->vdev_children; c++) { 2349 vdev_t *vd = rvd->vdev_child[c]; 2350 for (int m = 0; m < vd->vdev_ms_count; m++) { 2351 metaslab_t *msp = vd->vdev_ms[m]; 2352 mutex_enter(&msp->ms_lock); 2353 metaslab_unload(msp); 2354 2355 /* 2356 * For leak detection, we overload the metaslab 2357 * ms_tree to contain allocated segments 2358 * instead of free segments. As a result, 2359 * we can't use the normal metaslab_load/unload 2360 * interfaces. 2361 */ 2362 if (msp->ms_sm != NULL) { 2363 msp->ms_ops = &zdb_metaslab_ops; 2364 VERIFY0(space_map_load(msp->ms_sm, 2365 msp->ms_tree, SM_ALLOC)); 2366 msp->ms_loaded = B_TRUE; 2367 } 2368 mutex_exit(&msp->ms_lock); 2369 } 2370 } 2371 } 2372 2373 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2374 2375 zdb_ddt_leak_init(spa, zcb); 2376 2377 spa_config_exit(spa, SCL_CONFIG, FTAG); 2378} 2379 2380static void 2381zdb_leak_fini(spa_t *spa) 2382{ 2383 if (!dump_opt['L']) { 2384 vdev_t *rvd = spa->spa_root_vdev; 2385 for (int c = 0; c < rvd->vdev_children; c++) { 2386 vdev_t *vd = rvd->vdev_child[c]; 2387 for (int m = 0; m < vd->vdev_ms_count; m++) { 2388 metaslab_t *msp = vd->vdev_ms[m]; 2389 mutex_enter(&msp->ms_lock); 2390 2391 /* 2392 * The ms_tree has been overloaded to 2393 * contain allocated segments. Now that we 2394 * finished traversing all blocks, any 2395 * block that remains in the ms_tree 2396 * represents an allocated block that we 2397 * did not claim during the traversal. 2398 * Claimed blocks would have been removed 2399 * from the ms_tree. 2400 */ 2401 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2402 msp->ms_loaded = B_FALSE; 2403 2404 mutex_exit(&msp->ms_lock); 2405 } 2406 } 2407 } 2408} 2409 2410/* ARGSUSED */ 2411static int 2412count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2413{ 2414 zdb_cb_t *zcb = arg; 2415 2416 if (dump_opt['b'] >= 5) { 2417 char blkbuf[BP_SPRINTF_LEN]; 2418 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2419 (void) printf("[%s] %s\n", 2420 "deferred free", blkbuf); 2421 } 2422 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2423 return (0); 2424} 2425 2426static int 2427dump_block_stats(spa_t *spa) 2428{ 2429 zdb_cb_t zcb = { 0 }; 2430 zdb_blkstats_t *zb, *tzb; 2431 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2432 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2433 int leaks = 0; 2434 2435 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2436 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2437 (dump_opt['c'] == 1) ? "metadata " : "", 2438 dump_opt['c'] ? "checksums " : "", 2439 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2440 !dump_opt['L'] ? "nothing leaked " : ""); 2441 2442 /* 2443 * Load all space maps as SM_ALLOC maps, then traverse the pool 2444 * claiming each block we discover. If the pool is perfectly 2445 * consistent, the space maps will be empty when we're done. 2446 * Anything left over is a leak; any block we can't claim (because 2447 * it's not part of any space map) is a double allocation, 2448 * reference to a freed block, or an unclaimed log block. 2449 */ 2450 zdb_leak_init(spa, &zcb); 2451 2452 /* 2453 * If there's a deferred-free bplist, process that first. 2454 */ 2455 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2456 count_block_cb, &zcb, NULL); 2457 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2458 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2459 count_block_cb, &zcb, NULL); 2460 } 2461 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2462 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2463 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2464 &zcb, NULL)); 2465 } 2466 2467 if (dump_opt['c'] > 1) 2468 flags |= TRAVERSE_PREFETCH_DATA; 2469 2470 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2471 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2472 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2473 2474 /* 2475 * If we've traversed the data blocks then we need to wait for those 2476 * I/Os to complete. We leverage "The Godfather" zio to wait on 2477 * all async I/Os to complete. 2478 */ 2479 if (dump_opt['c']) { 2480 (void) zio_wait(spa->spa_async_zio_root); 2481 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2482 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2483 ZIO_FLAG_GODFATHER); 2484 } 2485 2486 if (zcb.zcb_haderrors) { 2487 (void) printf("\nError counts:\n\n"); 2488 (void) printf("\t%5s %s\n", "errno", "count"); 2489 for (int e = 0; e < 256; e++) { 2490 if (zcb.zcb_errors[e] != 0) { 2491 (void) printf("\t%5d %llu\n", 2492 e, (u_longlong_t)zcb.zcb_errors[e]); 2493 } 2494 } 2495 } 2496 2497 /* 2498 * Report any leaked segments. 2499 */ 2500 zdb_leak_fini(spa); 2501 2502 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2503 2504 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2505 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2506 2507 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2508 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2509 2510 if (total_found == total_alloc) { 2511 if (!dump_opt['L']) 2512 (void) printf("\n\tNo leaks (block sum matches space" 2513 " maps exactly)\n"); 2514 } else { 2515 (void) printf("block traversal size %llu != alloc %llu " 2516 "(%s %lld)\n", 2517 (u_longlong_t)total_found, 2518 (u_longlong_t)total_alloc, 2519 (dump_opt['L']) ? "unreachable" : "leaked", 2520 (longlong_t)(total_alloc - total_found)); 2521 leaks = 1; 2522 } 2523 2524 if (tzb->zb_count == 0) 2525 return (2); 2526 2527 (void) printf("\n"); 2528 (void) printf("\tbp count: %10llu\n", 2529 (u_longlong_t)tzb->zb_count); 2530 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2531 (u_longlong_t)tzb->zb_lsize, 2532 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2533 (void) printf("\tbp physical: %10llu avg:" 2534 " %6llu compression: %6.2f\n", 2535 (u_longlong_t)tzb->zb_psize, 2536 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2537 (double)tzb->zb_lsize / tzb->zb_psize); 2538 (void) printf("\tbp allocated: %10llu avg:" 2539 " %6llu compression: %6.2f\n", 2540 (u_longlong_t)tzb->zb_asize, 2541 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2542 (double)tzb->zb_lsize / tzb->zb_asize); 2543 (void) printf("\tbp deduped: %10llu ref>1:" 2544 " %6llu deduplication: %6.2f\n", 2545 (u_longlong_t)zcb.zcb_dedup_asize, 2546 (u_longlong_t)zcb.zcb_dedup_blocks, 2547 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2548 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2549 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2550 2551 if (dump_opt['b'] >= 2) { 2552 int l, t, level; 2553 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2554 "\t avg\t comp\t%%Total\tType\n"); 2555 2556 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2557 char csize[32], lsize[32], psize[32], asize[32]; 2558 char avg[32]; 2559 char *typename; 2560 2561 if (t < DMU_OT_NUMTYPES) 2562 typename = dmu_ot[t].ot_name; 2563 else 2564 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2565 2566 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2567 (void) printf("%6s\t%5s\t%5s\t%5s" 2568 "\t%5s\t%5s\t%6s\t%s\n", 2569 "-", 2570 "-", 2571 "-", 2572 "-", 2573 "-", 2574 "-", 2575 "-", 2576 typename); 2577 continue; 2578 } 2579 2580 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2581 level = (l == -1 ? ZB_TOTAL : l); 2582 zb = &zcb.zcb_type[level][t]; 2583 2584 if (zb->zb_asize == 0) 2585 continue; 2586 2587 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2588 continue; 2589 2590 if (level == 0 && zb->zb_asize == 2591 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2592 continue; 2593 2594 zdb_nicenum(zb->zb_count, csize); 2595 zdb_nicenum(zb->zb_lsize, lsize); 2596 zdb_nicenum(zb->zb_psize, psize); 2597 zdb_nicenum(zb->zb_asize, asize); 2598 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2599 2600 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2601 "\t%5.2f\t%6.2f\t", 2602 csize, lsize, psize, asize, avg, 2603 (double)zb->zb_lsize / zb->zb_psize, 2604 100.0 * zb->zb_asize / tzb->zb_asize); 2605 2606 if (level == ZB_TOTAL) 2607 (void) printf("%s\n", typename); 2608 else 2609 (void) printf(" L%d %s\n", 2610 level, typename); 2611 2612 if (dump_opt['b'] >= 4) { 2613 (void) printf("psize " 2614 "(in 512-byte sectors): " 2615 "number of blocks\n"); 2616 dump_histogram(zb->zb_psize_histogram, 2617 PSIZE_HISTO_SIZE, 0); 2618 } 2619 } 2620 } 2621 } 2622 2623 (void) printf("\n"); 2624 2625 if (leaks) 2626 return (2); 2627 2628 if (zcb.zcb_haderrors) 2629 return (3); 2630 2631 return (0); 2632} 2633 2634typedef struct zdb_ddt_entry { 2635 ddt_key_t zdde_key; 2636 uint64_t zdde_ref_blocks; 2637 uint64_t zdde_ref_lsize; 2638 uint64_t zdde_ref_psize; 2639 uint64_t zdde_ref_dsize; 2640 avl_node_t zdde_node; 2641} zdb_ddt_entry_t; 2642 2643/* ARGSUSED */ 2644static int 2645zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2646 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2647{ 2648 avl_tree_t *t = arg; 2649 avl_index_t where; 2650 zdb_ddt_entry_t *zdde, zdde_search; 2651 2652 if (BP_IS_HOLE(bp)) 2653 return (0); 2654 2655 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2656 (void) printf("traversing objset %llu, %llu objects, " 2657 "%lu blocks so far\n", 2658 (u_longlong_t)zb->zb_objset, 2659 (u_longlong_t)bp->blk_fill, 2660 avl_numnodes(t)); 2661 } 2662 2663 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2664 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2665 return (0); 2666 2667 ddt_key_fill(&zdde_search.zdde_key, bp); 2668 2669 zdde = avl_find(t, &zdde_search, &where); 2670 2671 if (zdde == NULL) { 2672 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2673 zdde->zdde_key = zdde_search.zdde_key; 2674 avl_insert(t, zdde, where); 2675 } 2676 2677 zdde->zdde_ref_blocks += 1; 2678 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2679 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2680 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2681 2682 return (0); 2683} 2684 2685static void 2686dump_simulated_ddt(spa_t *spa) 2687{ 2688 avl_tree_t t; 2689 void *cookie = NULL; 2690 zdb_ddt_entry_t *zdde; 2691 ddt_histogram_t ddh_total = { 0 }; 2692 ddt_stat_t dds_total = { 0 }; 2693 2694 avl_create(&t, ddt_entry_compare, 2695 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2696 2697 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2698 2699 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2700 zdb_ddt_add_cb, &t); 2701 2702 spa_config_exit(spa, SCL_CONFIG, FTAG); 2703 2704 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2705 ddt_stat_t dds; 2706 uint64_t refcnt = zdde->zdde_ref_blocks; 2707 ASSERT(refcnt != 0); 2708 2709 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2710 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2711 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2712 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2713 2714 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2715 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2716 dds.dds_ref_psize = zdde->zdde_ref_psize; 2717 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2718 2719 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2720 2721 umem_free(zdde, sizeof (*zdde)); 2722 } 2723 2724 avl_destroy(&t); 2725 2726 ddt_histogram_stat(&dds_total, &ddh_total); 2727 2728 (void) printf("Simulated DDT histogram:\n"); 2729 2730 zpool_dump_ddt(&dds_total, &ddh_total); 2731 2732 dump_dedup_ratio(&dds_total); 2733} 2734 2735static void 2736dump_zpool(spa_t *spa) 2737{ 2738 dsl_pool_t *dp = spa_get_dsl(spa); 2739 int rc = 0; 2740 2741 if (dump_opt['S']) { 2742 dump_simulated_ddt(spa); 2743 return; 2744 } 2745 2746 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2747 (void) printf("\nCached configuration:\n"); 2748 dump_nvlist(spa->spa_config, 8); 2749 } 2750 2751 if (dump_opt['C']) 2752 dump_config(spa); 2753 2754 if (dump_opt['u']) 2755 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2756 2757 if (dump_opt['D']) 2758 dump_all_ddts(spa); 2759 2760 if (dump_opt['d'] > 2 || dump_opt['m']) 2761 dump_metaslabs(spa); 2762 2763 if (dump_opt['d'] || dump_opt['i']) { 2764 dump_dir(dp->dp_meta_objset); 2765 if (dump_opt['d'] >= 3) { 2766 dump_bpobj(&spa->spa_deferred_bpobj, 2767 "Deferred frees", 0); 2768 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2769 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2770 "Pool snapshot frees", 0); 2771 } 2772 2773 if (spa_feature_is_active(spa, 2774 SPA_FEATURE_ASYNC_DESTROY)) { 2775 dump_bptree(spa->spa_meta_objset, 2776 spa->spa_dsl_pool->dp_bptree_obj, 2777 "Pool dataset frees"); 2778 } 2779 dump_dtl(spa->spa_root_vdev, 0); 2780 } 2781 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2782 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2783 } 2784 if (dump_opt['b'] || dump_opt['c']) 2785 rc = dump_block_stats(spa); 2786 2787 if (rc == 0) 2788 rc = verify_spacemap_refcounts(spa); 2789 2790 if (dump_opt['s']) 2791 show_pool_stats(spa); 2792 2793 if (dump_opt['h']) 2794 dump_history(spa); 2795 2796 if (rc != 0) 2797 exit(rc); 2798} 2799 2800#define ZDB_FLAG_CHECKSUM 0x0001 2801#define ZDB_FLAG_DECOMPRESS 0x0002 2802#define ZDB_FLAG_BSWAP 0x0004 2803#define ZDB_FLAG_GBH 0x0008 2804#define ZDB_FLAG_INDIRECT 0x0010 2805#define ZDB_FLAG_PHYS 0x0020 2806#define ZDB_FLAG_RAW 0x0040 2807#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2808 2809int flagbits[256]; 2810 2811static void 2812zdb_print_blkptr(blkptr_t *bp, int flags) 2813{ 2814 char blkbuf[BP_SPRINTF_LEN]; 2815 2816 if (flags & ZDB_FLAG_BSWAP) 2817 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2818 2819 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2820 (void) printf("%s\n", blkbuf); 2821} 2822 2823static void 2824zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2825{ 2826 int i; 2827 2828 for (i = 0; i < nbps; i++) 2829 zdb_print_blkptr(&bp[i], flags); 2830} 2831 2832static void 2833zdb_dump_gbh(void *buf, int flags) 2834{ 2835 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2836} 2837 2838static void 2839zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2840{ 2841 if (flags & ZDB_FLAG_BSWAP) 2842 byteswap_uint64_array(buf, size); 2843 (void) write(1, buf, size); 2844} 2845 2846static void 2847zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2848{ 2849 uint64_t *d = (uint64_t *)buf; 2850 int nwords = size / sizeof (uint64_t); 2851 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2852 int i, j; 2853 char *hdr, *c; 2854 2855 2856 if (do_bswap) 2857 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2858 else 2859 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2860 2861 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2862 2863 for (i = 0; i < nwords; i += 2) { 2864 (void) printf("%06llx: %016llx %016llx ", 2865 (u_longlong_t)(i * sizeof (uint64_t)), 2866 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2867 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2868 2869 c = (char *)&d[i]; 2870 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2871 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2872 (void) printf("\n"); 2873 } 2874} 2875 2876/* 2877 * There are two acceptable formats: 2878 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2879 * child[.child]* - For example: 0.1.1 2880 * 2881 * The second form can be used to specify arbitrary vdevs anywhere 2882 * in the heirarchy. For example, in a pool with a mirror of 2883 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2884 */ 2885static vdev_t * 2886zdb_vdev_lookup(vdev_t *vdev, char *path) 2887{ 2888 char *s, *p, *q; 2889 int i; 2890 2891 if (vdev == NULL) 2892 return (NULL); 2893 2894 /* First, assume the x.x.x.x format */ 2895 i = (int)strtoul(path, &s, 10); 2896 if (s == path || (s && *s != '.' && *s != '\0')) 2897 goto name; 2898 if (i < 0 || i >= vdev->vdev_children) 2899 return (NULL); 2900 2901 vdev = vdev->vdev_child[i]; 2902 if (*s == '\0') 2903 return (vdev); 2904 return (zdb_vdev_lookup(vdev, s+1)); 2905 2906name: 2907 for (i = 0; i < vdev->vdev_children; i++) { 2908 vdev_t *vc = vdev->vdev_child[i]; 2909 2910 if (vc->vdev_path == NULL) { 2911 vc = zdb_vdev_lookup(vc, path); 2912 if (vc == NULL) 2913 continue; 2914 else 2915 return (vc); 2916 } 2917 2918 p = strrchr(vc->vdev_path, '/'); 2919 p = p ? p + 1 : vc->vdev_path; 2920 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2921 2922 if (strcmp(vc->vdev_path, path) == 0) 2923 return (vc); 2924 if (strcmp(p, path) == 0) 2925 return (vc); 2926 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2927 return (vc); 2928 } 2929 2930 return (NULL); 2931} 2932 2933/* 2934 * Read a block from a pool and print it out. The syntax of the 2935 * block descriptor is: 2936 * 2937 * pool:vdev_specifier:offset:size[:flags] 2938 * 2939 * pool - The name of the pool you wish to read from 2940 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2941 * offset - offset, in hex, in bytes 2942 * size - Amount of data to read, in hex, in bytes 2943 * flags - A string of characters specifying options 2944 * b: Decode a blkptr at given offset within block 2945 * *c: Calculate and display checksums 2946 * d: Decompress data before dumping 2947 * e: Byteswap data before dumping 2948 * g: Display data as a gang block header 2949 * i: Display as an indirect block 2950 * p: Do I/O to physical offset 2951 * r: Dump raw data to stdout 2952 * 2953 * * = not yet implemented 2954 */ 2955static void 2956zdb_read_block(char *thing, spa_t *spa) 2957{ 2958 blkptr_t blk, *bp = &blk; 2959 dva_t *dva = bp->blk_dva; 2960 int flags = 0; 2961 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2962 zio_t *zio; 2963 vdev_t *vd; 2964 void *pbuf, *lbuf, *buf; 2965 char *s, *p, *dup, *vdev, *flagstr; 2966 int i, error; 2967 2968 dup = strdup(thing); 2969 s = strtok(dup, ":"); 2970 vdev = s ? s : ""; 2971 s = strtok(NULL, ":"); 2972 offset = strtoull(s ? s : "", NULL, 16); 2973 s = strtok(NULL, ":"); 2974 size = strtoull(s ? s : "", NULL, 16); 2975 s = strtok(NULL, ":"); 2976 flagstr = s ? s : ""; 2977 2978 s = NULL; 2979 if (size == 0) 2980 s = "size must not be zero"; 2981 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2982 s = "size must be a multiple of sector size"; 2983 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2984 s = "offset must be a multiple of sector size"; 2985 if (s) { 2986 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2987 free(dup); 2988 return; 2989 } 2990 2991 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2992 for (i = 0; flagstr[i]; i++) { 2993 int bit = flagbits[(uchar_t)flagstr[i]]; 2994 2995 if (bit == 0) { 2996 (void) printf("***Invalid flag: %c\n", 2997 flagstr[i]); 2998 continue; 2999 } 3000 flags |= bit; 3001 3002 /* If it's not something with an argument, keep going */ 3003 if ((bit & (ZDB_FLAG_CHECKSUM | 3004 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3005 continue; 3006 3007 p = &flagstr[i + 1]; 3008 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3009 blkptr_offset = strtoull(p, &p, 16); 3010 if (*p != ':' && *p != '\0') { 3011 (void) printf("***Invalid flag arg: '%s'\n", s); 3012 free(dup); 3013 return; 3014 } 3015 i += p - &flagstr[i + 1]; /* skip over the number */ 3016 } 3017 } 3018 3019 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3020 if (vd == NULL) { 3021 (void) printf("***Invalid vdev: %s\n", vdev); 3022 free(dup); 3023 return; 3024 } else { 3025 if (vd->vdev_path) 3026 (void) fprintf(stderr, "Found vdev: %s\n", 3027 vd->vdev_path); 3028 else 3029 (void) fprintf(stderr, "Found vdev type: %s\n", 3030 vd->vdev_ops->vdev_op_type); 3031 } 3032 3033 psize = size; 3034 lsize = size; 3035 3036 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3037 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3038 3039 BP_ZERO(bp); 3040 3041 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3042 DVA_SET_OFFSET(&dva[0], offset); 3043 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3044 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3045 3046 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3047 3048 BP_SET_LSIZE(bp, lsize); 3049 BP_SET_PSIZE(bp, psize); 3050 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3051 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3052 BP_SET_TYPE(bp, DMU_OT_NONE); 3053 BP_SET_LEVEL(bp, 0); 3054 BP_SET_DEDUP(bp, 0); 3055 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3056 3057 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3058 zio = zio_root(spa, NULL, NULL, 0); 3059 3060 if (vd == vd->vdev_top) { 3061 /* 3062 * Treat this as a normal block read. 3063 */ 3064 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3065 ZIO_PRIORITY_SYNC_READ, 3066 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3067 } else { 3068 /* 3069 * Treat this as a vdev child I/O. 3070 */ 3071 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3072 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3073 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3074 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3075 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3076 } 3077 3078 error = zio_wait(zio); 3079 spa_config_exit(spa, SCL_STATE, FTAG); 3080 3081 if (error) { 3082 (void) printf("Read of %s failed, error: %d\n", thing, error); 3083 goto out; 3084 } 3085 3086 if (flags & ZDB_FLAG_DECOMPRESS) { 3087 /* 3088 * We don't know how the data was compressed, so just try 3089 * every decompress function at every inflated blocksize. 3090 */ 3091 enum zio_compress c; 3092 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3093 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3094 3095 bcopy(pbuf, pbuf2, psize); 3096 3097 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3098 SPA_MAXBLOCKSIZE - psize) == 0); 3099 3100 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3101 SPA_MAXBLOCKSIZE - psize) == 0); 3102 3103 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3104 lsize -= SPA_MINBLOCKSIZE) { 3105 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3106 if (zio_decompress_data(c, pbuf, lbuf, 3107 psize, lsize) == 0 && 3108 zio_decompress_data(c, pbuf2, lbuf2, 3109 psize, lsize) == 0 && 3110 bcmp(lbuf, lbuf2, lsize) == 0) 3111 break; 3112 } 3113 if (c != ZIO_COMPRESS_FUNCTIONS) 3114 break; 3115 lsize -= SPA_MINBLOCKSIZE; 3116 } 3117 3118 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3119 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3120 3121 if (lsize <= psize) { 3122 (void) printf("Decompress of %s failed\n", thing); 3123 goto out; 3124 } 3125 buf = lbuf; 3126 size = lsize; 3127 } else { 3128 buf = pbuf; 3129 size = psize; 3130 } 3131 3132 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3133 zdb_print_blkptr((blkptr_t *)(void *) 3134 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3135 else if (flags & ZDB_FLAG_RAW) 3136 zdb_dump_block_raw(buf, size, flags); 3137 else if (flags & ZDB_FLAG_INDIRECT) 3138 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3139 flags); 3140 else if (flags & ZDB_FLAG_GBH) 3141 zdb_dump_gbh(buf, flags); 3142 else 3143 zdb_dump_block(thing, buf, size, flags); 3144 3145out: 3146 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3147 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3148 free(dup); 3149} 3150 3151static boolean_t 3152pool_match(nvlist_t *cfg, char *tgt) 3153{ 3154 uint64_t v, guid = strtoull(tgt, NULL, 0); 3155 char *s; 3156 3157 if (guid != 0) { 3158 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3159 return (v == guid); 3160 } else { 3161 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3162 return (strcmp(s, tgt) == 0); 3163 } 3164 return (B_FALSE); 3165} 3166 3167static char * 3168find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3169{ 3170 nvlist_t *pools; 3171 nvlist_t *match = NULL; 3172 char *name = NULL; 3173 char *sepp = NULL; 3174 char sep; 3175 int count = 0; 3176 importargs_t args = { 0 }; 3177 3178 args.paths = dirc; 3179 args.path = dirv; 3180 args.can_be_active = B_TRUE; 3181 3182 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3183 sep = *sepp; 3184 *sepp = '\0'; 3185 } 3186 3187 pools = zpool_search_import(g_zfs, &args); 3188 3189 if (pools != NULL) { 3190 nvpair_t *elem = NULL; 3191 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3192 verify(nvpair_value_nvlist(elem, configp) == 0); 3193 if (pool_match(*configp, *target)) { 3194 count++; 3195 if (match != NULL) { 3196 /* print previously found config */ 3197 if (name != NULL) { 3198 (void) printf("%s\n", name); 3199 dump_nvlist(match, 8); 3200 name = NULL; 3201 } 3202 (void) printf("%s\n", 3203 nvpair_name(elem)); 3204 dump_nvlist(*configp, 8); 3205 } else { 3206 match = *configp; 3207 name = nvpair_name(elem); 3208 } 3209 } 3210 } 3211 } 3212 if (count > 1) 3213 (void) fatal("\tMatched %d pools - use pool GUID " 3214 "instead of pool name or \n" 3215 "\tpool name part of a dataset name to select pool", count); 3216 3217 if (sepp) 3218 *sepp = sep; 3219 /* 3220 * If pool GUID was specified for pool id, replace it with pool name 3221 */ 3222 if (name && (strstr(*target, name) != *target)) { 3223 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3224 3225 *target = umem_alloc(sz, UMEM_NOFAIL); 3226 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3227 } 3228 3229 *configp = name ? match : NULL; 3230 3231 return (name); 3232} 3233 3234int 3235main(int argc, char **argv) 3236{ 3237 int i, c; 3238 struct rlimit rl = { 1024, 1024 }; 3239 spa_t *spa = NULL; 3240 objset_t *os = NULL; 3241 int dump_all = 1; 3242 int verbose = 0; 3243 int error = 0; 3244 char **searchdirs = NULL; 3245 int nsearch = 0; 3246 char *target; 3247 nvlist_t *policy = NULL; 3248 uint64_t max_txg = UINT64_MAX; 3249 int rewind = ZPOOL_NEVER_REWIND; 3250 3251 (void) setrlimit(RLIMIT_NOFILE, &rl); 3252 (void) enable_extended_FILE_stdio(-1, -1); 3253 3254 dprintf_setup(&argc, argv); 3255 3256 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3257 switch (c) { 3258 case 'b': 3259 case 'c': 3260 case 'd': 3261 case 'h': 3262 case 'i': 3263 case 'l': 3264 case 'm': 3265 case 's': 3266 case 'u': 3267 case 'C': 3268 case 'D': 3269 case 'R': 3270 case 'S': 3271 dump_opt[c]++; 3272 dump_all = 0; 3273 break; 3274 case 'A': 3275 case 'F': 3276 case 'L': 3277 case 'X': 3278 case 'e': 3279 case 'P': 3280 dump_opt[c]++; 3281 break; 3282 case 'v': 3283 verbose++; 3284 break; 3285 case 'M': 3286 max_inflight = strtoull(optarg, NULL, 0); 3287 if (max_inflight == 0) { 3288 (void) fprintf(stderr, "maximum number " 3289 "of inflight I/Os must be greater " 3290 "than 0\n"); 3291 usage(); 3292 } 3293 break; 3294 case 'p': 3295 if (searchdirs == NULL) { 3296 searchdirs = umem_alloc(sizeof (char *), 3297 UMEM_NOFAIL); 3298 } else { 3299 char **tmp = umem_alloc((nsearch + 1) * 3300 sizeof (char *), UMEM_NOFAIL); 3301 bcopy(searchdirs, tmp, nsearch * 3302 sizeof (char *)); 3303 umem_free(searchdirs, 3304 nsearch * sizeof (char *)); 3305 searchdirs = tmp; 3306 } 3307 searchdirs[nsearch++] = optarg; 3308 break; 3309 case 't': 3310 max_txg = strtoull(optarg, NULL, 0); 3311 if (max_txg < TXG_INITIAL) { 3312 (void) fprintf(stderr, "incorrect txg " 3313 "specified: %s\n", optarg); 3314 usage(); 3315 } 3316 break; 3317 case 'U': 3318 spa_config_path = optarg; 3319 break; 3320 default: 3321 usage(); 3322 break; 3323 } 3324 } 3325 3326 if (!dump_opt['e'] && searchdirs != NULL) { 3327 (void) fprintf(stderr, "-p option requires use of -e\n"); 3328 usage(); 3329 } 3330 3331 kernel_init(FREAD); 3332 g_zfs = libzfs_init(); 3333 ASSERT(g_zfs != NULL); 3334 3335 if (dump_all) 3336 verbose = MAX(verbose, 1); 3337 3338 for (c = 0; c < 256; c++) { 3339 if (dump_all && !strchr("elAFLRSXP", c)) 3340 dump_opt[c] = 1; 3341 if (dump_opt[c]) 3342 dump_opt[c] += verbose; 3343 } 3344 3345 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3346 zfs_recover = (dump_opt['A'] > 1); 3347 3348 argc -= optind; 3349 argv += optind; 3350 3351 if (argc < 2 && dump_opt['R']) 3352 usage(); 3353 if (argc < 1) { 3354 if (!dump_opt['e'] && dump_opt['C']) { 3355 dump_cachefile(spa_config_path); 3356 return (0); 3357 } 3358 usage(); 3359 } 3360 3361 if (dump_opt['l']) { 3362 dump_label(argv[0]); 3363 return (0); 3364 } 3365 3366 if (dump_opt['X'] || dump_opt['F']) 3367 rewind = ZPOOL_DO_REWIND | 3368 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3369 3370 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3371 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3372 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3373 fatal("internal error: %s", strerror(ENOMEM)); 3374 3375 error = 0; 3376 target = argv[0]; 3377 3378 if (dump_opt['e']) { 3379 nvlist_t *cfg = NULL; 3380 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3381 3382 error = ENOENT; 3383 if (name) { 3384 if (dump_opt['C'] > 1) { 3385 (void) printf("\nConfiguration for import:\n"); 3386 dump_nvlist(cfg, 8); 3387 } 3388 if (nvlist_add_nvlist(cfg, 3389 ZPOOL_REWIND_POLICY, policy) != 0) { 3390 fatal("can't open '%s': %s", 3391 target, strerror(ENOMEM)); 3392 } 3393 if ((error = spa_import(name, cfg, NULL, 3394 ZFS_IMPORT_MISSING_LOG)) != 0) { 3395 error = spa_import(name, cfg, NULL, 3396 ZFS_IMPORT_VERBATIM); 3397 } 3398 } 3399 } 3400 3401 if (error == 0) { 3402 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3403 error = spa_open_rewind(target, &spa, FTAG, policy, 3404 NULL); 3405 if (error) { 3406 /* 3407 * If we're missing the log device then 3408 * try opening the pool after clearing the 3409 * log state. 3410 */ 3411 mutex_enter(&spa_namespace_lock); 3412 if ((spa = spa_lookup(target)) != NULL && 3413 spa->spa_log_state == SPA_LOG_MISSING) { 3414 spa->spa_log_state = SPA_LOG_CLEAR; 3415 error = 0; 3416 } 3417 mutex_exit(&spa_namespace_lock); 3418 3419 if (!error) { 3420 error = spa_open_rewind(target, &spa, 3421 FTAG, policy, NULL); 3422 } 3423 } 3424 } else { 3425 error = dmu_objset_own(target, DMU_OST_ANY, 3426 B_TRUE, FTAG, &os); 3427 } 3428 } 3429 nvlist_free(policy); 3430 3431 if (error) 3432 fatal("can't open '%s': %s", target, strerror(error)); 3433 3434 argv++; 3435 argc--; 3436 if (!dump_opt['R']) { 3437 if (argc > 0) { 3438 zopt_objects = argc; 3439 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3440 for (i = 0; i < zopt_objects; i++) { 3441 errno = 0; 3442 zopt_object[i] = strtoull(argv[i], NULL, 0); 3443 if (zopt_object[i] == 0 && errno != 0) 3444 fatal("bad number %s: %s", 3445 argv[i], strerror(errno)); 3446 } 3447 } 3448 if (os != NULL) { 3449 dump_dir(os); 3450 } else if (zopt_objects > 0 && !dump_opt['m']) { 3451 dump_dir(spa->spa_meta_objset); 3452 } else { 3453 dump_zpool(spa); 3454 } 3455 } else { 3456 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3457 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3458 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3459 flagbits['e'] = ZDB_FLAG_BSWAP; 3460 flagbits['g'] = ZDB_FLAG_GBH; 3461 flagbits['i'] = ZDB_FLAG_INDIRECT; 3462 flagbits['p'] = ZDB_FLAG_PHYS; 3463 flagbits['r'] = ZDB_FLAG_RAW; 3464 3465 for (i = 0; i < argc; i++) 3466 zdb_read_block(argv[i], spa); 3467 } 3468 3469 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3470 3471 fuid_table_destroy(); 3472 sa_loaded = B_FALSE; 3473 3474 libzfs_fini(g_zfs); 3475 kernel_fini(); 3476 3477 return (0); 3478} 3479