zdb.c revision 268645
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern 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} 931 932/* from spa_history.c: spa_history_create_obj() */ 933#define HIS_BUF_LEN_DEF (128 << 10) 934#define HIS_BUF_LEN_MAX (1 << 30) 935 936static void 937dump_history(spa_t *spa) 938{ 939 nvlist_t **events = NULL; 940 char *buf = NULL; 941 uint64_t bufsize = HIS_BUF_LEN_DEF; 942 uint64_t resid, len, off = 0; 943 uint_t num = 0; 944 int error; 945 time_t tsec; 946 struct tm t; 947 char tbuf[30]; 948 char internalstr[MAXPATHLEN]; 949 950 if ((buf = malloc(bufsize)) == NULL) 951 (void) fprintf(stderr, "Unable to read history: " 952 "out of memory\n"); 953 do { 954 len = bufsize; 955 956 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 957 (void) fprintf(stderr, "Unable to read history: " 958 "error %d\n", error); 959 return; 960 } 961 962 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 963 break; 964 off -= resid; 965 966 /* 967 * If the history block is too big, double the buffer 968 * size and try again. 969 */ 970 if (resid == len) { 971 free(buf); 972 buf = NULL; 973 974 bufsize <<= 1; 975 if ((bufsize >= HIS_BUF_LEN_MAX) || 976 ((buf = malloc(bufsize)) == NULL)) { 977 (void) fprintf(stderr, "Unable to read history: " 978 "out of memory\n"); 979 return; 980 } 981 } 982 } while (len != 0); 983 free(buf); 984 985 (void) printf("\nHistory:\n"); 986 for (int i = 0; i < num; i++) { 987 uint64_t time, txg, ievent; 988 char *cmd, *intstr; 989 boolean_t printed = B_FALSE; 990 991 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 992 &time) != 0) 993 goto next; 994 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 995 &cmd) != 0) { 996 if (nvlist_lookup_uint64(events[i], 997 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 998 goto next; 999 verify(nvlist_lookup_uint64(events[i], 1000 ZPOOL_HIST_TXG, &txg) == 0); 1001 verify(nvlist_lookup_string(events[i], 1002 ZPOOL_HIST_INT_STR, &intstr) == 0); 1003 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1004 goto next; 1005 1006 (void) snprintf(internalstr, 1007 sizeof (internalstr), 1008 "[internal %s txg:%lld] %s", 1009 zfs_history_event_names[ievent], txg, 1010 intstr); 1011 cmd = internalstr; 1012 } 1013 tsec = time; 1014 (void) localtime_r(&tsec, &t); 1015 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1016 (void) printf("%s %s\n", tbuf, cmd); 1017 printed = B_TRUE; 1018 1019next: 1020 if (dump_opt['h'] > 1) { 1021 if (!printed) 1022 (void) printf("unrecognized record:\n"); 1023 dump_nvlist(events[i], 2); 1024 } 1025 } 1026} 1027 1028/*ARGSUSED*/ 1029static void 1030dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1031{ 1032} 1033 1034static uint64_t 1035blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1036{ 1037 if (dnp == NULL) { 1038 ASSERT(zb->zb_level < 0); 1039 if (zb->zb_object == 0) 1040 return (zb->zb_blkid); 1041 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1042 } 1043 1044 ASSERT(zb->zb_level >= 0); 1045 1046 return ((zb->zb_blkid << 1047 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1048 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1049} 1050 1051static void 1052snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1053{ 1054 const dva_t *dva = bp->blk_dva; 1055 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1056 1057 if (dump_opt['b'] >= 6) { 1058 snprintf_blkptr(blkbuf, buflen, bp); 1059 return; 1060 } 1061 1062 blkbuf[0] = '\0'; 1063 1064 for (int i = 0; i < ndvas; i++) 1065 (void) snprintf(blkbuf + strlen(blkbuf), 1066 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1067 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1068 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1069 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1070 1071 if (BP_IS_HOLE(bp)) { 1072 (void) snprintf(blkbuf + strlen(blkbuf), 1073 buflen - strlen(blkbuf), "B=%llu", 1074 (u_longlong_t)bp->blk_birth); 1075 } else { 1076 (void) snprintf(blkbuf + strlen(blkbuf), 1077 buflen - strlen(blkbuf), 1078 "%llxL/%llxP F=%llu B=%llu/%llu", 1079 (u_longlong_t)BP_GET_LSIZE(bp), 1080 (u_longlong_t)BP_GET_PSIZE(bp), 1081 (u_longlong_t)bp->blk_fill, 1082 (u_longlong_t)bp->blk_birth, 1083 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1084 } 1085} 1086 1087static void 1088print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1089 const dnode_phys_t *dnp) 1090{ 1091 char blkbuf[BP_SPRINTF_LEN]; 1092 int l; 1093 1094 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1095 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1096 1097 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1098 1099 ASSERT(zb->zb_level >= 0); 1100 1101 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1102 if (l == zb->zb_level) { 1103 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1104 } else { 1105 (void) printf(" "); 1106 } 1107 } 1108 1109 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1110 (void) printf("%s\n", blkbuf); 1111} 1112 1113static int 1114visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1115 blkptr_t *bp, const zbookmark_t *zb) 1116{ 1117 int err = 0; 1118 1119 if (bp->blk_birth == 0) 1120 return (0); 1121 1122 print_indirect(bp, zb, dnp); 1123 1124 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1125 uint32_t flags = ARC_WAIT; 1126 int i; 1127 blkptr_t *cbp; 1128 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1129 arc_buf_t *buf; 1130 uint64_t fill = 0; 1131 1132 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1133 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1134 if (err) 1135 return (err); 1136 ASSERT(buf->b_data); 1137 1138 /* recursively visit blocks below this */ 1139 cbp = buf->b_data; 1140 for (i = 0; i < epb; i++, cbp++) { 1141 zbookmark_t czb; 1142 1143 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1144 zb->zb_level - 1, 1145 zb->zb_blkid * epb + i); 1146 err = visit_indirect(spa, dnp, cbp, &czb); 1147 if (err) 1148 break; 1149 fill += cbp->blk_fill; 1150 } 1151 if (!err) 1152 ASSERT3U(fill, ==, bp->blk_fill); 1153 (void) arc_buf_remove_ref(buf, &buf); 1154 } 1155 1156 return (err); 1157} 1158 1159/*ARGSUSED*/ 1160static void 1161dump_indirect(dnode_t *dn) 1162{ 1163 dnode_phys_t *dnp = dn->dn_phys; 1164 int j; 1165 zbookmark_t czb; 1166 1167 (void) printf("Indirect blocks:\n"); 1168 1169 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1170 dn->dn_object, dnp->dn_nlevels - 1, 0); 1171 for (j = 0; j < dnp->dn_nblkptr; j++) { 1172 czb.zb_blkid = j; 1173 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1174 &dnp->dn_blkptr[j], &czb); 1175 } 1176 1177 (void) printf("\n"); 1178} 1179 1180/*ARGSUSED*/ 1181static void 1182dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1183{ 1184 dsl_dir_phys_t *dd = data; 1185 time_t crtime; 1186 char nice[32]; 1187 1188 if (dd == NULL) 1189 return; 1190 1191 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1192 1193 crtime = dd->dd_creation_time; 1194 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1195 (void) printf("\t\thead_dataset_obj = %llu\n", 1196 (u_longlong_t)dd->dd_head_dataset_obj); 1197 (void) printf("\t\tparent_dir_obj = %llu\n", 1198 (u_longlong_t)dd->dd_parent_obj); 1199 (void) printf("\t\torigin_obj = %llu\n", 1200 (u_longlong_t)dd->dd_origin_obj); 1201 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1202 (u_longlong_t)dd->dd_child_dir_zapobj); 1203 zdb_nicenum(dd->dd_used_bytes, nice); 1204 (void) printf("\t\tused_bytes = %s\n", nice); 1205 zdb_nicenum(dd->dd_compressed_bytes, nice); 1206 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1207 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1208 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1209 zdb_nicenum(dd->dd_quota, nice); 1210 (void) printf("\t\tquota = %s\n", nice); 1211 zdb_nicenum(dd->dd_reserved, nice); 1212 (void) printf("\t\treserved = %s\n", nice); 1213 (void) printf("\t\tprops_zapobj = %llu\n", 1214 (u_longlong_t)dd->dd_props_zapobj); 1215 (void) printf("\t\tdeleg_zapobj = %llu\n", 1216 (u_longlong_t)dd->dd_deleg_zapobj); 1217 (void) printf("\t\tflags = %llx\n", 1218 (u_longlong_t)dd->dd_flags); 1219 1220#define DO(which) \ 1221 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1222 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1223 DO(HEAD); 1224 DO(SNAP); 1225 DO(CHILD); 1226 DO(CHILD_RSRV); 1227 DO(REFRSRV); 1228#undef DO 1229} 1230 1231/*ARGSUSED*/ 1232static void 1233dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1234{ 1235 dsl_dataset_phys_t *ds = data; 1236 time_t crtime; 1237 char used[32], compressed[32], uncompressed[32], unique[32]; 1238 char blkbuf[BP_SPRINTF_LEN]; 1239 1240 if (ds == NULL) 1241 return; 1242 1243 ASSERT(size == sizeof (*ds)); 1244 crtime = ds->ds_creation_time; 1245 zdb_nicenum(ds->ds_referenced_bytes, used); 1246 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1247 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1248 zdb_nicenum(ds->ds_unique_bytes, unique); 1249 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1250 1251 (void) printf("\t\tdir_obj = %llu\n", 1252 (u_longlong_t)ds->ds_dir_obj); 1253 (void) printf("\t\tprev_snap_obj = %llu\n", 1254 (u_longlong_t)ds->ds_prev_snap_obj); 1255 (void) printf("\t\tprev_snap_txg = %llu\n", 1256 (u_longlong_t)ds->ds_prev_snap_txg); 1257 (void) printf("\t\tnext_snap_obj = %llu\n", 1258 (u_longlong_t)ds->ds_next_snap_obj); 1259 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1260 (u_longlong_t)ds->ds_snapnames_zapobj); 1261 (void) printf("\t\tnum_children = %llu\n", 1262 (u_longlong_t)ds->ds_num_children); 1263 (void) printf("\t\tuserrefs_obj = %llu\n", 1264 (u_longlong_t)ds->ds_userrefs_obj); 1265 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1266 (void) printf("\t\tcreation_txg = %llu\n", 1267 (u_longlong_t)ds->ds_creation_txg); 1268 (void) printf("\t\tdeadlist_obj = %llu\n", 1269 (u_longlong_t)ds->ds_deadlist_obj); 1270 (void) printf("\t\tused_bytes = %s\n", used); 1271 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1272 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1273 (void) printf("\t\tunique = %s\n", unique); 1274 (void) printf("\t\tfsid_guid = %llu\n", 1275 (u_longlong_t)ds->ds_fsid_guid); 1276 (void) printf("\t\tguid = %llu\n", 1277 (u_longlong_t)ds->ds_guid); 1278 (void) printf("\t\tflags = %llx\n", 1279 (u_longlong_t)ds->ds_flags); 1280 (void) printf("\t\tnext_clones_obj = %llu\n", 1281 (u_longlong_t)ds->ds_next_clones_obj); 1282 (void) printf("\t\tprops_obj = %llu\n", 1283 (u_longlong_t)ds->ds_props_obj); 1284 (void) printf("\t\tbp = %s\n", blkbuf); 1285} 1286 1287/* ARGSUSED */ 1288static int 1289dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1290{ 1291 char blkbuf[BP_SPRINTF_LEN]; 1292 1293 if (bp->blk_birth != 0) { 1294 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1295 (void) printf("\t%s\n", blkbuf); 1296 } 1297 return (0); 1298} 1299 1300static void 1301dump_bptree(objset_t *os, uint64_t obj, char *name) 1302{ 1303 char bytes[32]; 1304 bptree_phys_t *bt; 1305 dmu_buf_t *db; 1306 1307 if (dump_opt['d'] < 3) 1308 return; 1309 1310 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1311 bt = db->db_data; 1312 zdb_nicenum(bt->bt_bytes, bytes); 1313 (void) printf("\n %s: %llu datasets, %s\n", 1314 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1315 dmu_buf_rele(db, FTAG); 1316 1317 if (dump_opt['d'] < 5) 1318 return; 1319 1320 (void) printf("\n"); 1321 1322 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1323} 1324 1325/* ARGSUSED */ 1326static int 1327dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1328{ 1329 char blkbuf[BP_SPRINTF_LEN]; 1330 1331 ASSERT(bp->blk_birth != 0); 1332 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1333 (void) printf("\t%s\n", blkbuf); 1334 return (0); 1335} 1336 1337static void 1338dump_bpobj(bpobj_t *bpo, char *name, int indent) 1339{ 1340 char bytes[32]; 1341 char comp[32]; 1342 char uncomp[32]; 1343 1344 if (dump_opt['d'] < 3) 1345 return; 1346 1347 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1348 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1349 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1350 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1351 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1352 "%llu subobjs, %s (%s/%s comp)\n", 1353 indent * 8, name, 1354 (u_longlong_t)bpo->bpo_object, 1355 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1356 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1357 bytes, comp, uncomp); 1358 1359 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1360 uint64_t subobj; 1361 bpobj_t subbpo; 1362 int error; 1363 VERIFY0(dmu_read(bpo->bpo_os, 1364 bpo->bpo_phys->bpo_subobjs, 1365 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1366 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1367 if (error != 0) { 1368 (void) printf("ERROR %u while trying to open " 1369 "subobj id %llu\n", 1370 error, (u_longlong_t)subobj); 1371 continue; 1372 } 1373 dump_bpobj(&subbpo, "subobj", indent + 1); 1374 bpobj_close(&subbpo); 1375 } 1376 } else { 1377 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1378 indent * 8, name, 1379 (u_longlong_t)bpo->bpo_object, 1380 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1381 bytes); 1382 } 1383 1384 if (dump_opt['d'] < 5) 1385 return; 1386 1387 1388 if (indent == 0) { 1389 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1390 (void) printf("\n"); 1391 } 1392} 1393 1394static void 1395dump_deadlist(dsl_deadlist_t *dl) 1396{ 1397 dsl_deadlist_entry_t *dle; 1398 uint64_t unused; 1399 char bytes[32]; 1400 char comp[32]; 1401 char uncomp[32]; 1402 1403 if (dump_opt['d'] < 3) 1404 return; 1405 1406 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1407 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1408 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1409 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1410 bytes, comp, uncomp); 1411 1412 if (dump_opt['d'] < 4) 1413 return; 1414 1415 (void) printf("\n"); 1416 1417 /* force the tree to be loaded */ 1418 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1419 1420 for (dle = avl_first(&dl->dl_tree); dle; 1421 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1422 if (dump_opt['d'] >= 5) { 1423 char buf[128]; 1424 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1425 (longlong_t)dle->dle_mintxg, 1426 (longlong_t)dle->dle_bpobj.bpo_object); 1427 1428 dump_bpobj(&dle->dle_bpobj, buf, 0); 1429 } else { 1430 (void) printf("mintxg %llu -> obj %llu\n", 1431 (longlong_t)dle->dle_mintxg, 1432 (longlong_t)dle->dle_bpobj.bpo_object); 1433 1434 } 1435 } 1436} 1437 1438static avl_tree_t idx_tree; 1439static avl_tree_t domain_tree; 1440static boolean_t fuid_table_loaded; 1441static boolean_t sa_loaded; 1442sa_attr_type_t *sa_attr_table; 1443 1444static void 1445fuid_table_destroy() 1446{ 1447 if (fuid_table_loaded) { 1448 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1449 fuid_table_loaded = B_FALSE; 1450 } 1451} 1452 1453/* 1454 * print uid or gid information. 1455 * For normal POSIX id just the id is printed in decimal format. 1456 * For CIFS files with FUID the fuid is printed in hex followed by 1457 * the domain-rid string. 1458 */ 1459static void 1460print_idstr(uint64_t id, const char *id_type) 1461{ 1462 if (FUID_INDEX(id)) { 1463 char *domain; 1464 1465 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1466 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1467 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1468 } else { 1469 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1470 } 1471 1472} 1473 1474static void 1475dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1476{ 1477 uint32_t uid_idx, gid_idx; 1478 1479 uid_idx = FUID_INDEX(uid); 1480 gid_idx = FUID_INDEX(gid); 1481 1482 /* Load domain table, if not already loaded */ 1483 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1484 uint64_t fuid_obj; 1485 1486 /* first find the fuid object. It lives in the master node */ 1487 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1488 8, 1, &fuid_obj) == 0); 1489 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1490 (void) zfs_fuid_table_load(os, fuid_obj, 1491 &idx_tree, &domain_tree); 1492 fuid_table_loaded = B_TRUE; 1493 } 1494 1495 print_idstr(uid, "uid"); 1496 print_idstr(gid, "gid"); 1497} 1498 1499/*ARGSUSED*/ 1500static void 1501dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1502{ 1503 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1504 sa_handle_t *hdl; 1505 uint64_t xattr, rdev, gen; 1506 uint64_t uid, gid, mode, fsize, parent, links; 1507 uint64_t pflags; 1508 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1509 time_t z_crtime, z_atime, z_mtime, z_ctime; 1510 sa_bulk_attr_t bulk[12]; 1511 int idx = 0; 1512 int error; 1513 1514 if (!sa_loaded) { 1515 uint64_t sa_attrs = 0; 1516 uint64_t version; 1517 1518 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1519 8, 1, &version) == 0); 1520 if (version >= ZPL_VERSION_SA) { 1521 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1522 8, 1, &sa_attrs) == 0); 1523 } 1524 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1525 ZPL_END, &sa_attr_table)) != 0) { 1526 (void) printf("sa_setup failed errno %d, can't " 1527 "display znode contents\n", error); 1528 return; 1529 } 1530 sa_loaded = B_TRUE; 1531 } 1532 1533 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1534 (void) printf("Failed to get handle for SA znode\n"); 1535 return; 1536 } 1537 1538 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1539 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1540 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1541 &links, 8); 1542 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1543 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1544 &mode, 8); 1545 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1546 NULL, &parent, 8); 1547 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1548 &fsize, 8); 1549 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1550 acctm, 16); 1551 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1552 modtm, 16); 1553 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1554 crtm, 16); 1555 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1556 chgtm, 16); 1557 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1558 &pflags, 8); 1559 1560 if (sa_bulk_lookup(hdl, bulk, idx)) { 1561 (void) sa_handle_destroy(hdl); 1562 return; 1563 } 1564 1565 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1566 if (error != 0) { 1567 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1568 (u_longlong_t)object); 1569 } 1570 if (dump_opt['d'] < 3) { 1571 (void) printf("\t%s\n", path); 1572 (void) sa_handle_destroy(hdl); 1573 return; 1574 } 1575 1576 z_crtime = (time_t)crtm[0]; 1577 z_atime = (time_t)acctm[0]; 1578 z_mtime = (time_t)modtm[0]; 1579 z_ctime = (time_t)chgtm[0]; 1580 1581 (void) printf("\tpath %s\n", path); 1582 dump_uidgid(os, uid, gid); 1583 (void) printf("\tatime %s", ctime(&z_atime)); 1584 (void) printf("\tmtime %s", ctime(&z_mtime)); 1585 (void) printf("\tctime %s", ctime(&z_ctime)); 1586 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1587 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1588 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1589 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1590 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1591 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1592 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1593 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1594 sizeof (uint64_t)) == 0) 1595 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1596 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1597 sizeof (uint64_t)) == 0) 1598 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1599 sa_handle_destroy(hdl); 1600} 1601 1602/*ARGSUSED*/ 1603static void 1604dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1605{ 1606} 1607 1608/*ARGSUSED*/ 1609static void 1610dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1611{ 1612} 1613 1614static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1615 dump_none, /* unallocated */ 1616 dump_zap, /* object directory */ 1617 dump_uint64, /* object array */ 1618 dump_none, /* packed nvlist */ 1619 dump_packed_nvlist, /* packed nvlist size */ 1620 dump_none, /* bplist */ 1621 dump_none, /* bplist header */ 1622 dump_none, /* SPA space map header */ 1623 dump_none, /* SPA space map */ 1624 dump_none, /* ZIL intent log */ 1625 dump_dnode, /* DMU dnode */ 1626 dump_dmu_objset, /* DMU objset */ 1627 dump_dsl_dir, /* DSL directory */ 1628 dump_zap, /* DSL directory child map */ 1629 dump_zap, /* DSL dataset snap map */ 1630 dump_zap, /* DSL props */ 1631 dump_dsl_dataset, /* DSL dataset */ 1632 dump_znode, /* ZFS znode */ 1633 dump_acl, /* ZFS V0 ACL */ 1634 dump_uint8, /* ZFS plain file */ 1635 dump_zpldir, /* ZFS directory */ 1636 dump_zap, /* ZFS master node */ 1637 dump_zap, /* ZFS delete queue */ 1638 dump_uint8, /* zvol object */ 1639 dump_zap, /* zvol prop */ 1640 dump_uint8, /* other uint8[] */ 1641 dump_uint64, /* other uint64[] */ 1642 dump_zap, /* other ZAP */ 1643 dump_zap, /* persistent error log */ 1644 dump_uint8, /* SPA history */ 1645 dump_history_offsets, /* SPA history offsets */ 1646 dump_zap, /* Pool properties */ 1647 dump_zap, /* DSL permissions */ 1648 dump_acl, /* ZFS ACL */ 1649 dump_uint8, /* ZFS SYSACL */ 1650 dump_none, /* FUID nvlist */ 1651 dump_packed_nvlist, /* FUID nvlist size */ 1652 dump_zap, /* DSL dataset next clones */ 1653 dump_zap, /* DSL scrub queue */ 1654 dump_zap, /* ZFS user/group used */ 1655 dump_zap, /* ZFS user/group quota */ 1656 dump_zap, /* snapshot refcount tags */ 1657 dump_ddt_zap, /* DDT ZAP object */ 1658 dump_zap, /* DDT statistics */ 1659 dump_znode, /* SA object */ 1660 dump_zap, /* SA Master Node */ 1661 dump_sa_attrs, /* SA attribute registration */ 1662 dump_sa_layouts, /* SA attribute layouts */ 1663 dump_zap, /* DSL scrub translations */ 1664 dump_none, /* fake dedup BP */ 1665 dump_zap, /* deadlist */ 1666 dump_none, /* deadlist hdr */ 1667 dump_zap, /* dsl clones */ 1668 dump_none, /* bpobj subobjs */ 1669 dump_unknown, /* Unknown type, must be last */ 1670}; 1671 1672static void 1673dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1674{ 1675 dmu_buf_t *db = NULL; 1676 dmu_object_info_t doi; 1677 dnode_t *dn; 1678 void *bonus = NULL; 1679 size_t bsize = 0; 1680 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1681 char bonus_size[32]; 1682 char aux[50]; 1683 int error; 1684 1685 if (*print_header) { 1686 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1687 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1688 "%full", "type"); 1689 *print_header = 0; 1690 } 1691 1692 if (object == 0) { 1693 dn = DMU_META_DNODE(os); 1694 } else { 1695 error = dmu_bonus_hold(os, object, FTAG, &db); 1696 if (error) 1697 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1698 object, error); 1699 bonus = db->db_data; 1700 bsize = db->db_size; 1701 dn = DB_DNODE((dmu_buf_impl_t *)db); 1702 } 1703 dmu_object_info_from_dnode(dn, &doi); 1704 1705 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1706 zdb_nicenum(doi.doi_data_block_size, dblk); 1707 zdb_nicenum(doi.doi_max_offset, lsize); 1708 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1709 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1710 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1711 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1712 doi.doi_max_offset); 1713 1714 aux[0] = '\0'; 1715 1716 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1717 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1718 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1719 } 1720 1721 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1722 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1723 ZDB_COMPRESS_NAME(doi.doi_compress)); 1724 } 1725 1726 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1727 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1728 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1729 1730 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1731 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1732 "", "", "", "", "", bonus_size, "bonus", 1733 ZDB_OT_NAME(doi.doi_bonus_type)); 1734 } 1735 1736 if (verbosity >= 4) { 1737 (void) printf("\tdnode flags: %s%s%s\n", 1738 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1739 "USED_BYTES " : "", 1740 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1741 "USERUSED_ACCOUNTED " : "", 1742 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1743 "SPILL_BLKPTR" : ""); 1744 (void) printf("\tdnode maxblkid: %llu\n", 1745 (longlong_t)dn->dn_phys->dn_maxblkid); 1746 1747 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1748 bonus, bsize); 1749 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1750 *print_header = 1; 1751 } 1752 1753 if (verbosity >= 5) 1754 dump_indirect(dn); 1755 1756 if (verbosity >= 5) { 1757 /* 1758 * Report the list of segments that comprise the object. 1759 */ 1760 uint64_t start = 0; 1761 uint64_t end; 1762 uint64_t blkfill = 1; 1763 int minlvl = 1; 1764 1765 if (dn->dn_type == DMU_OT_DNODE) { 1766 minlvl = 0; 1767 blkfill = DNODES_PER_BLOCK; 1768 } 1769 1770 for (;;) { 1771 char segsize[32]; 1772 error = dnode_next_offset(dn, 1773 0, &start, minlvl, blkfill, 0); 1774 if (error) 1775 break; 1776 end = start; 1777 error = dnode_next_offset(dn, 1778 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1779 zdb_nicenum(end - start, segsize); 1780 (void) printf("\t\tsegment [%016llx, %016llx)" 1781 " size %5s\n", (u_longlong_t)start, 1782 (u_longlong_t)end, segsize); 1783 if (error) 1784 break; 1785 start = end; 1786 } 1787 } 1788 1789 if (db != NULL) 1790 dmu_buf_rele(db, FTAG); 1791} 1792 1793static char *objset_types[DMU_OST_NUMTYPES] = { 1794 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1795 1796static void 1797dump_dir(objset_t *os) 1798{ 1799 dmu_objset_stats_t dds; 1800 uint64_t object, object_count; 1801 uint64_t refdbytes, usedobjs, scratch; 1802 char numbuf[32]; 1803 char blkbuf[BP_SPRINTF_LEN + 20]; 1804 char osname[MAXNAMELEN]; 1805 char *type = "UNKNOWN"; 1806 int verbosity = dump_opt['d']; 1807 int print_header = 1; 1808 int i, error; 1809 1810 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1811 dmu_objset_fast_stat(os, &dds); 1812 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1813 1814 if (dds.dds_type < DMU_OST_NUMTYPES) 1815 type = objset_types[dds.dds_type]; 1816 1817 if (dds.dds_type == DMU_OST_META) { 1818 dds.dds_creation_txg = TXG_INITIAL; 1819 usedobjs = os->os_rootbp->blk_fill; 1820 refdbytes = os->os_spa->spa_dsl_pool-> 1821 dp_mos_dir->dd_phys->dd_used_bytes; 1822 } else { 1823 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1824 } 1825 1826 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1827 1828 zdb_nicenum(refdbytes, numbuf); 1829 1830 if (verbosity >= 4) { 1831 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1832 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1833 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1834 } else { 1835 blkbuf[0] = '\0'; 1836 } 1837 1838 dmu_objset_name(os, osname); 1839 1840 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1841 "%s, %llu objects%s\n", 1842 osname, type, (u_longlong_t)dmu_objset_id(os), 1843 (u_longlong_t)dds.dds_creation_txg, 1844 numbuf, (u_longlong_t)usedobjs, blkbuf); 1845 1846 if (zopt_objects != 0) { 1847 for (i = 0; i < zopt_objects; i++) 1848 dump_object(os, zopt_object[i], verbosity, 1849 &print_header); 1850 (void) printf("\n"); 1851 return; 1852 } 1853 1854 if (dump_opt['i'] != 0 || verbosity >= 2) 1855 dump_intent_log(dmu_objset_zil(os)); 1856 1857 if (dmu_objset_ds(os) != NULL) 1858 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1859 1860 if (verbosity < 2) 1861 return; 1862 1863 if (BP_IS_HOLE(os->os_rootbp)) 1864 return; 1865 1866 dump_object(os, 0, verbosity, &print_header); 1867 object_count = 0; 1868 if (DMU_USERUSED_DNODE(os) != NULL && 1869 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1870 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1871 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1872 } 1873 1874 object = 0; 1875 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1876 dump_object(os, object, verbosity, &print_header); 1877 object_count++; 1878 } 1879 1880 ASSERT3U(object_count, ==, usedobjs); 1881 1882 (void) printf("\n"); 1883 1884 if (error != ESRCH) { 1885 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1886 abort(); 1887 } 1888} 1889 1890static void 1891dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1892{ 1893 time_t timestamp = ub->ub_timestamp; 1894 1895 (void) printf(header ? header : ""); 1896 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1897 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1898 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1899 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1900 (void) printf("\ttimestamp = %llu UTC = %s", 1901 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1902 if (dump_opt['u'] >= 3) { 1903 char blkbuf[BP_SPRINTF_LEN]; 1904 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1905 (void) printf("\trootbp = %s\n", blkbuf); 1906 } 1907 (void) printf(footer ? footer : ""); 1908} 1909 1910static void 1911dump_config(spa_t *spa) 1912{ 1913 dmu_buf_t *db; 1914 size_t nvsize = 0; 1915 int error = 0; 1916 1917 1918 error = dmu_bonus_hold(spa->spa_meta_objset, 1919 spa->spa_config_object, FTAG, &db); 1920 1921 if (error == 0) { 1922 nvsize = *(uint64_t *)db->db_data; 1923 dmu_buf_rele(db, FTAG); 1924 1925 (void) printf("\nMOS Configuration:\n"); 1926 dump_packed_nvlist(spa->spa_meta_objset, 1927 spa->spa_config_object, (void *)&nvsize, 1); 1928 } else { 1929 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1930 (u_longlong_t)spa->spa_config_object, error); 1931 } 1932} 1933 1934static void 1935dump_cachefile(const char *cachefile) 1936{ 1937 int fd; 1938 struct stat64 statbuf; 1939 char *buf; 1940 nvlist_t *config; 1941 1942 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1943 (void) printf("cannot open '%s': %s\n", cachefile, 1944 strerror(errno)); 1945 exit(1); 1946 } 1947 1948 if (fstat64(fd, &statbuf) != 0) { 1949 (void) printf("failed to stat '%s': %s\n", cachefile, 1950 strerror(errno)); 1951 exit(1); 1952 } 1953 1954 if ((buf = malloc(statbuf.st_size)) == NULL) { 1955 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1956 (u_longlong_t)statbuf.st_size); 1957 exit(1); 1958 } 1959 1960 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1961 (void) fprintf(stderr, "failed to read %llu bytes\n", 1962 (u_longlong_t)statbuf.st_size); 1963 exit(1); 1964 } 1965 1966 (void) close(fd); 1967 1968 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1969 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1970 exit(1); 1971 } 1972 1973 free(buf); 1974 1975 dump_nvlist(config, 0); 1976 1977 nvlist_free(config); 1978} 1979 1980#define ZDB_MAX_UB_HEADER_SIZE 32 1981 1982static void 1983dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1984{ 1985 vdev_t vd; 1986 vdev_t *vdp = &vd; 1987 char header[ZDB_MAX_UB_HEADER_SIZE]; 1988 1989 vd.vdev_ashift = ashift; 1990 vdp->vdev_top = vdp; 1991 1992 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1993 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1994 uberblock_t *ub = (void *)((char *)lbl + uoff); 1995 1996 if (uberblock_verify(ub)) 1997 continue; 1998 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1999 "Uberblock[%d]\n", i); 2000 dump_uberblock(ub, header, ""); 2001 } 2002} 2003 2004static void 2005dump_label(const char *dev) 2006{ 2007 int fd; 2008 vdev_label_t label; 2009 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2010 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2011 struct stat64 statbuf; 2012 uint64_t psize, ashift; 2013 int len = strlen(dev) + 1; 2014 2015 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2016 len++; 2017 path = malloc(len); 2018 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2019 } else { 2020 path = strdup(dev); 2021 } 2022 2023 if ((fd = open64(path, O_RDONLY)) < 0) { 2024 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2025 free(path); 2026 exit(1); 2027 } 2028 2029 if (fstat64(fd, &statbuf) != 0) { 2030 (void) printf("failed to stat '%s': %s\n", path, 2031 strerror(errno)); 2032 free(path); 2033 (void) close(fd); 2034 exit(1); 2035 } 2036 2037 if (S_ISBLK(statbuf.st_mode)) { 2038 (void) printf("cannot use '%s': character device required\n", 2039 path); 2040 free(path); 2041 (void) close(fd); 2042 exit(1); 2043 } 2044 2045 psize = statbuf.st_size; 2046 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2047 2048 for (int l = 0; l < VDEV_LABELS; l++) { 2049 nvlist_t *config = NULL; 2050 2051 (void) printf("--------------------------------------------\n"); 2052 (void) printf("LABEL %d\n", l); 2053 (void) printf("--------------------------------------------\n"); 2054 2055 if (pread64(fd, &label, sizeof (label), 2056 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2057 (void) printf("failed to read label %d\n", l); 2058 continue; 2059 } 2060 2061 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2062 (void) printf("failed to unpack label %d\n", l); 2063 ashift = SPA_MINBLOCKSHIFT; 2064 } else { 2065 nvlist_t *vdev_tree = NULL; 2066 2067 dump_nvlist(config, 4); 2068 if ((nvlist_lookup_nvlist(config, 2069 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2070 (nvlist_lookup_uint64(vdev_tree, 2071 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2072 ashift = SPA_MINBLOCKSHIFT; 2073 nvlist_free(config); 2074 } 2075 if (dump_opt['u']) 2076 dump_label_uberblocks(&label, ashift); 2077 } 2078 2079 free(path); 2080 (void) close(fd); 2081} 2082 2083/*ARGSUSED*/ 2084static int 2085dump_one_dir(const char *dsname, void *arg) 2086{ 2087 int error; 2088 objset_t *os; 2089 2090 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2091 if (error) { 2092 (void) printf("Could not open %s, error %d\n", dsname, error); 2093 return (0); 2094 } 2095 dump_dir(os); 2096 dmu_objset_disown(os, FTAG); 2097 fuid_table_destroy(); 2098 sa_loaded = B_FALSE; 2099 return (0); 2100} 2101 2102/* 2103 * Block statistics. 2104 */ 2105#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2106typedef struct zdb_blkstats { 2107 uint64_t zb_asize; 2108 uint64_t zb_lsize; 2109 uint64_t zb_psize; 2110 uint64_t zb_count; 2111 uint64_t zb_gangs; 2112 uint64_t zb_ditto_samevdev; 2113 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2114} zdb_blkstats_t; 2115 2116/* 2117 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2118 */ 2119#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2120#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2121#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2122#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2123 2124static char *zdb_ot_extname[] = { 2125 "deferred free", 2126 "dedup ditto", 2127 "other", 2128 "Total", 2129}; 2130 2131#define ZB_TOTAL DN_MAX_LEVELS 2132 2133typedef struct zdb_cb { 2134 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2135 uint64_t zcb_dedup_asize; 2136 uint64_t zcb_dedup_blocks; 2137 uint64_t zcb_start; 2138 uint64_t zcb_lastprint; 2139 uint64_t zcb_totalasize; 2140 uint64_t zcb_errors[256]; 2141 int zcb_readfails; 2142 int zcb_haderrors; 2143 spa_t *zcb_spa; 2144} zdb_cb_t; 2145 2146static void 2147zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2148 dmu_object_type_t type) 2149{ 2150 uint64_t refcnt = 0; 2151 2152 ASSERT(type < ZDB_OT_TOTAL); 2153 2154 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2155 return; 2156 2157 for (int i = 0; i < 4; i++) { 2158 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2159 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2160 int equal; 2161 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2162 2163 zb->zb_asize += BP_GET_ASIZE(bp); 2164 zb->zb_lsize += BP_GET_LSIZE(bp); 2165 zb->zb_psize += BP_GET_PSIZE(bp); 2166 zb->zb_count++; 2167 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2168 2169 zb->zb_gangs += BP_COUNT_GANG(bp); 2170 2171 switch (BP_GET_NDVAS(bp)) { 2172 case 2: 2173 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2174 DVA_GET_VDEV(&bp->blk_dva[1])) 2175 zb->zb_ditto_samevdev++; 2176 break; 2177 case 3: 2178 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2179 DVA_GET_VDEV(&bp->blk_dva[1])) + 2180 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2181 DVA_GET_VDEV(&bp->blk_dva[2])) + 2182 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2183 DVA_GET_VDEV(&bp->blk_dva[2])); 2184 if (equal != 0) 2185 zb->zb_ditto_samevdev++; 2186 break; 2187 } 2188 2189 } 2190 2191 if (dump_opt['L']) 2192 return; 2193 2194 if (BP_GET_DEDUP(bp)) { 2195 ddt_t *ddt; 2196 ddt_entry_t *dde; 2197 2198 ddt = ddt_select(zcb->zcb_spa, bp); 2199 ddt_enter(ddt); 2200 dde = ddt_lookup(ddt, bp, B_FALSE); 2201 2202 if (dde == NULL) { 2203 refcnt = 0; 2204 } else { 2205 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2206 ddt_phys_decref(ddp); 2207 refcnt = ddp->ddp_refcnt; 2208 if (ddt_phys_total_refcnt(dde) == 0) 2209 ddt_remove(ddt, dde); 2210 } 2211 ddt_exit(ddt); 2212 } 2213 2214 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2215 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2216 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2217} 2218 2219/* ARGSUSED */ 2220static void 2221zdb_blkptr_done(zio_t *zio) 2222{ 2223 spa_t *spa = zio->io_spa; 2224 blkptr_t *bp = zio->io_bp; 2225 int ioerr = zio->io_error; 2226 zdb_cb_t *zcb = zio->io_private; 2227 zbookmark_t *zb = &zio->io_bookmark; 2228 2229 zio_data_buf_free(zio->io_data, zio->io_size); 2230 2231 mutex_enter(&spa->spa_scrub_lock); 2232 spa->spa_scrub_inflight--; 2233 cv_broadcast(&spa->spa_scrub_io_cv); 2234 2235 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2236 char blkbuf[BP_SPRINTF_LEN]; 2237 2238 zcb->zcb_haderrors = 1; 2239 zcb->zcb_errors[ioerr]++; 2240 2241 if (dump_opt['b'] >= 2) 2242 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2243 else 2244 blkbuf[0] = '\0'; 2245 2246 (void) printf("zdb_blkptr_cb: " 2247 "Got error %d reading " 2248 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2249 ioerr, 2250 (u_longlong_t)zb->zb_objset, 2251 (u_longlong_t)zb->zb_object, 2252 (u_longlong_t)zb->zb_level, 2253 (u_longlong_t)zb->zb_blkid, 2254 blkbuf); 2255 } 2256 mutex_exit(&spa->spa_scrub_lock); 2257} 2258 2259/* ARGSUSED */ 2260static int 2261zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2262 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2263{ 2264 zdb_cb_t *zcb = arg; 2265 dmu_object_type_t type; 2266 boolean_t is_metadata; 2267 2268 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2269 char blkbuf[BP_SPRINTF_LEN]; 2270 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2271 (void) printf("objset %llu object %llu " 2272 "level %lld offset 0x%llx %s\n", 2273 (u_longlong_t)zb->zb_objset, 2274 (u_longlong_t)zb->zb_object, 2275 (longlong_t)zb->zb_level, 2276 (u_longlong_t)blkid2offset(dnp, bp, zb), 2277 blkbuf); 2278 } 2279 2280 if (BP_IS_HOLE(bp)) 2281 return (0); 2282 2283 type = BP_GET_TYPE(bp); 2284 2285 zdb_count_block(zcb, zilog, bp, 2286 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2287 2288 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2289 2290 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2291 size_t size = BP_GET_PSIZE(bp); 2292 void *data = zio_data_buf_alloc(size); 2293 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2294 2295 /* If it's an intent log block, failure is expected. */ 2296 if (zb->zb_level == ZB_ZIL_LEVEL) 2297 flags |= ZIO_FLAG_SPECULATIVE; 2298 2299 mutex_enter(&spa->spa_scrub_lock); 2300 while (spa->spa_scrub_inflight > max_inflight) 2301 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2302 spa->spa_scrub_inflight++; 2303 mutex_exit(&spa->spa_scrub_lock); 2304 2305 zio_nowait(zio_read(NULL, spa, bp, data, size, 2306 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2307 } 2308 2309 zcb->zcb_readfails = 0; 2310 2311 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2312 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2313 uint64_t now = gethrtime(); 2314 char buf[10]; 2315 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2316 int kb_per_sec = 2317 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2318 int sec_remaining = 2319 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2320 2321 zfs_nicenum(bytes, buf, sizeof (buf)); 2322 (void) fprintf(stderr, 2323 "\r%5s completed (%4dMB/s) " 2324 "estimated time remaining: %uhr %02umin %02usec ", 2325 buf, kb_per_sec / 1024, 2326 sec_remaining / 60 / 60, 2327 sec_remaining / 60 % 60, 2328 sec_remaining % 60); 2329 2330 zcb->zcb_lastprint = now; 2331 } 2332 2333 return (0); 2334} 2335 2336static void 2337zdb_leak(void *arg, uint64_t start, uint64_t size) 2338{ 2339 vdev_t *vd = arg; 2340 2341 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2342 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2343} 2344 2345static metaslab_ops_t zdb_metaslab_ops = { 2346 NULL, /* alloc */ 2347 NULL /* fragmented */ 2348}; 2349 2350static void 2351zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2352{ 2353 ddt_bookmark_t ddb = { 0 }; 2354 ddt_entry_t dde; 2355 int error; 2356 2357 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2358 blkptr_t blk; 2359 ddt_phys_t *ddp = dde.dde_phys; 2360 2361 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2362 return; 2363 2364 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2365 2366 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2367 if (ddp->ddp_phys_birth == 0) 2368 continue; 2369 ddt_bp_create(ddb.ddb_checksum, 2370 &dde.dde_key, ddp, &blk); 2371 if (p == DDT_PHYS_DITTO) { 2372 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2373 } else { 2374 zcb->zcb_dedup_asize += 2375 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2376 zcb->zcb_dedup_blocks++; 2377 } 2378 } 2379 if (!dump_opt['L']) { 2380 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2381 ddt_enter(ddt); 2382 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2383 ddt_exit(ddt); 2384 } 2385 } 2386 2387 ASSERT(error == ENOENT); 2388} 2389 2390static void 2391zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2392{ 2393 zcb->zcb_spa = spa; 2394 2395 if (!dump_opt['L']) { 2396 vdev_t *rvd = spa->spa_root_vdev; 2397 for (int c = 0; c < rvd->vdev_children; c++) { 2398 vdev_t *vd = rvd->vdev_child[c]; 2399 for (int m = 0; m < vd->vdev_ms_count; m++) { 2400 metaslab_t *msp = vd->vdev_ms[m]; 2401 mutex_enter(&msp->ms_lock); 2402 metaslab_unload(msp); 2403 2404 /* 2405 * For leak detection, we overload the metaslab 2406 * ms_tree to contain allocated segments 2407 * instead of free segments. As a result, 2408 * we can't use the normal metaslab_load/unload 2409 * interfaces. 2410 */ 2411 if (msp->ms_sm != NULL) { 2412 msp->ms_ops = &zdb_metaslab_ops; 2413 VERIFY0(space_map_load(msp->ms_sm, 2414 msp->ms_tree, SM_ALLOC)); 2415 msp->ms_loaded = B_TRUE; 2416 } 2417 mutex_exit(&msp->ms_lock); 2418 } 2419 } 2420 } 2421 2422 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2423 2424 zdb_ddt_leak_init(spa, zcb); 2425 2426 spa_config_exit(spa, SCL_CONFIG, FTAG); 2427} 2428 2429static void 2430zdb_leak_fini(spa_t *spa) 2431{ 2432 if (!dump_opt['L']) { 2433 vdev_t *rvd = spa->spa_root_vdev; 2434 for (int c = 0; c < rvd->vdev_children; c++) { 2435 vdev_t *vd = rvd->vdev_child[c]; 2436 for (int m = 0; m < vd->vdev_ms_count; m++) { 2437 metaslab_t *msp = vd->vdev_ms[m]; 2438 mutex_enter(&msp->ms_lock); 2439 2440 /* 2441 * The ms_tree has been overloaded to 2442 * contain allocated segments. Now that we 2443 * finished traversing all blocks, any 2444 * block that remains in the ms_tree 2445 * represents an allocated block that we 2446 * did not claim during the traversal. 2447 * Claimed blocks would have been removed 2448 * from the ms_tree. 2449 */ 2450 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2451 msp->ms_loaded = B_FALSE; 2452 2453 mutex_exit(&msp->ms_lock); 2454 } 2455 } 2456 } 2457} 2458 2459/* ARGSUSED */ 2460static int 2461count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2462{ 2463 zdb_cb_t *zcb = arg; 2464 2465 if (dump_opt['b'] >= 5) { 2466 char blkbuf[BP_SPRINTF_LEN]; 2467 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2468 (void) printf("[%s] %s\n", 2469 "deferred free", blkbuf); 2470 } 2471 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2472 return (0); 2473} 2474 2475static int 2476dump_block_stats(spa_t *spa) 2477{ 2478 zdb_cb_t zcb = { 0 }; 2479 zdb_blkstats_t *zb, *tzb; 2480 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2481 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2482 int leaks = 0; 2483 2484 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2485 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2486 (dump_opt['c'] == 1) ? "metadata " : "", 2487 dump_opt['c'] ? "checksums " : "", 2488 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2489 !dump_opt['L'] ? "nothing leaked " : ""); 2490 2491 /* 2492 * Load all space maps as SM_ALLOC maps, then traverse the pool 2493 * claiming each block we discover. If the pool is perfectly 2494 * consistent, the space maps will be empty when we're done. 2495 * Anything left over is a leak; any block we can't claim (because 2496 * it's not part of any space map) is a double allocation, 2497 * reference to a freed block, or an unclaimed log block. 2498 */ 2499 zdb_leak_init(spa, &zcb); 2500 2501 /* 2502 * If there's a deferred-free bplist, process that first. 2503 */ 2504 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2505 count_block_cb, &zcb, NULL); 2506 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2507 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2508 count_block_cb, &zcb, NULL); 2509 } 2510 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2511 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2512 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2513 &zcb, NULL)); 2514 } 2515 2516 if (dump_opt['c'] > 1) 2517 flags |= TRAVERSE_PREFETCH_DATA; 2518 2519 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2520 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2521 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2522 2523 /* 2524 * If we've traversed the data blocks then we need to wait for those 2525 * I/Os to complete. We leverage "The Godfather" zio to wait on 2526 * all async I/Os to complete. 2527 */ 2528 if (dump_opt['c']) { 2529 (void) zio_wait(spa->spa_async_zio_root); 2530 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2531 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2532 ZIO_FLAG_GODFATHER); 2533 } 2534 2535 if (zcb.zcb_haderrors) { 2536 (void) printf("\nError counts:\n\n"); 2537 (void) printf("\t%5s %s\n", "errno", "count"); 2538 for (int e = 0; e < 256; e++) { 2539 if (zcb.zcb_errors[e] != 0) { 2540 (void) printf("\t%5d %llu\n", 2541 e, (u_longlong_t)zcb.zcb_errors[e]); 2542 } 2543 } 2544 } 2545 2546 /* 2547 * Report any leaked segments. 2548 */ 2549 zdb_leak_fini(spa); 2550 2551 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2552 2553 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2554 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2555 2556 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2557 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2558 2559 if (total_found == total_alloc) { 2560 if (!dump_opt['L']) 2561 (void) printf("\n\tNo leaks (block sum matches space" 2562 " maps exactly)\n"); 2563 } else { 2564 (void) printf("block traversal size %llu != alloc %llu " 2565 "(%s %lld)\n", 2566 (u_longlong_t)total_found, 2567 (u_longlong_t)total_alloc, 2568 (dump_opt['L']) ? "unreachable" : "leaked", 2569 (longlong_t)(total_alloc - total_found)); 2570 leaks = 1; 2571 } 2572 2573 if (tzb->zb_count == 0) 2574 return (2); 2575 2576 (void) printf("\n"); 2577 (void) printf("\tbp count: %10llu\n", 2578 (u_longlong_t)tzb->zb_count); 2579 (void) printf("\tganged count: %10llu\n", 2580 (longlong_t)tzb->zb_gangs); 2581 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2582 (u_longlong_t)tzb->zb_lsize, 2583 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2584 (void) printf("\tbp physical: %10llu avg:" 2585 " %6llu compression: %6.2f\n", 2586 (u_longlong_t)tzb->zb_psize, 2587 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2588 (double)tzb->zb_lsize / tzb->zb_psize); 2589 (void) printf("\tbp allocated: %10llu avg:" 2590 " %6llu compression: %6.2f\n", 2591 (u_longlong_t)tzb->zb_asize, 2592 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2593 (double)tzb->zb_lsize / tzb->zb_asize); 2594 (void) printf("\tbp deduped: %10llu ref>1:" 2595 " %6llu deduplication: %6.2f\n", 2596 (u_longlong_t)zcb.zcb_dedup_asize, 2597 (u_longlong_t)zcb.zcb_dedup_blocks, 2598 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2599 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2600 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2601 2602 if (tzb->zb_ditto_samevdev != 0) { 2603 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2604 (longlong_t)tzb->zb_ditto_samevdev); 2605 } 2606 2607 if (dump_opt['b'] >= 2) { 2608 int l, t, level; 2609 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2610 "\t avg\t comp\t%%Total\tType\n"); 2611 2612 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2613 char csize[32], lsize[32], psize[32], asize[32]; 2614 char avg[32], gang[32]; 2615 char *typename; 2616 2617 if (t < DMU_OT_NUMTYPES) 2618 typename = dmu_ot[t].ot_name; 2619 else 2620 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2621 2622 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2623 (void) printf("%6s\t%5s\t%5s\t%5s" 2624 "\t%5s\t%5s\t%6s\t%s\n", 2625 "-", 2626 "-", 2627 "-", 2628 "-", 2629 "-", 2630 "-", 2631 "-", 2632 typename); 2633 continue; 2634 } 2635 2636 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2637 level = (l == -1 ? ZB_TOTAL : l); 2638 zb = &zcb.zcb_type[level][t]; 2639 2640 if (zb->zb_asize == 0) 2641 continue; 2642 2643 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2644 continue; 2645 2646 if (level == 0 && zb->zb_asize == 2647 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2648 continue; 2649 2650 zdb_nicenum(zb->zb_count, csize); 2651 zdb_nicenum(zb->zb_lsize, lsize); 2652 zdb_nicenum(zb->zb_psize, psize); 2653 zdb_nicenum(zb->zb_asize, asize); 2654 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2655 zdb_nicenum(zb->zb_gangs, gang); 2656 2657 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2658 "\t%5.2f\t%6.2f\t", 2659 csize, lsize, psize, asize, avg, 2660 (double)zb->zb_lsize / zb->zb_psize, 2661 100.0 * zb->zb_asize / tzb->zb_asize); 2662 2663 if (level == ZB_TOTAL) 2664 (void) printf("%s\n", typename); 2665 else 2666 (void) printf(" L%d %s\n", 2667 level, typename); 2668 2669 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2670 (void) printf("\t number of ganged " 2671 "blocks: %s\n", gang); 2672 } 2673 2674 if (dump_opt['b'] >= 4) { 2675 (void) printf("psize " 2676 "(in 512-byte sectors): " 2677 "number of blocks\n"); 2678 dump_histogram(zb->zb_psize_histogram, 2679 PSIZE_HISTO_SIZE, 0); 2680 } 2681 } 2682 } 2683 } 2684 2685 (void) printf("\n"); 2686 2687 if (leaks) 2688 return (2); 2689 2690 if (zcb.zcb_haderrors) 2691 return (3); 2692 2693 return (0); 2694} 2695 2696typedef struct zdb_ddt_entry { 2697 ddt_key_t zdde_key; 2698 uint64_t zdde_ref_blocks; 2699 uint64_t zdde_ref_lsize; 2700 uint64_t zdde_ref_psize; 2701 uint64_t zdde_ref_dsize; 2702 avl_node_t zdde_node; 2703} zdb_ddt_entry_t; 2704 2705/* ARGSUSED */ 2706static int 2707zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2708 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2709{ 2710 avl_tree_t *t = arg; 2711 avl_index_t where; 2712 zdb_ddt_entry_t *zdde, zdde_search; 2713 2714 if (BP_IS_HOLE(bp)) 2715 return (0); 2716 2717 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2718 (void) printf("traversing objset %llu, %llu objects, " 2719 "%lu blocks so far\n", 2720 (u_longlong_t)zb->zb_objset, 2721 (u_longlong_t)bp->blk_fill, 2722 avl_numnodes(t)); 2723 } 2724 2725 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2726 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2727 return (0); 2728 2729 ddt_key_fill(&zdde_search.zdde_key, bp); 2730 2731 zdde = avl_find(t, &zdde_search, &where); 2732 2733 if (zdde == NULL) { 2734 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2735 zdde->zdde_key = zdde_search.zdde_key; 2736 avl_insert(t, zdde, where); 2737 } 2738 2739 zdde->zdde_ref_blocks += 1; 2740 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2741 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2742 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2743 2744 return (0); 2745} 2746 2747static void 2748dump_simulated_ddt(spa_t *spa) 2749{ 2750 avl_tree_t t; 2751 void *cookie = NULL; 2752 zdb_ddt_entry_t *zdde; 2753 ddt_histogram_t ddh_total = { 0 }; 2754 ddt_stat_t dds_total = { 0 }; 2755 2756 avl_create(&t, ddt_entry_compare, 2757 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2758 2759 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2760 2761 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2762 zdb_ddt_add_cb, &t); 2763 2764 spa_config_exit(spa, SCL_CONFIG, FTAG); 2765 2766 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2767 ddt_stat_t dds; 2768 uint64_t refcnt = zdde->zdde_ref_blocks; 2769 ASSERT(refcnt != 0); 2770 2771 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2772 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2773 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2774 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2775 2776 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2777 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2778 dds.dds_ref_psize = zdde->zdde_ref_psize; 2779 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2780 2781 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2782 &dds, 0); 2783 2784 umem_free(zdde, sizeof (*zdde)); 2785 } 2786 2787 avl_destroy(&t); 2788 2789 ddt_histogram_stat(&dds_total, &ddh_total); 2790 2791 (void) printf("Simulated DDT histogram:\n"); 2792 2793 zpool_dump_ddt(&dds_total, &ddh_total); 2794 2795 dump_dedup_ratio(&dds_total); 2796} 2797 2798static void 2799dump_zpool(spa_t *spa) 2800{ 2801 dsl_pool_t *dp = spa_get_dsl(spa); 2802 int rc = 0; 2803 2804 if (dump_opt['S']) { 2805 dump_simulated_ddt(spa); 2806 return; 2807 } 2808 2809 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2810 (void) printf("\nCached configuration:\n"); 2811 dump_nvlist(spa->spa_config, 8); 2812 } 2813 2814 if (dump_opt['C']) 2815 dump_config(spa); 2816 2817 if (dump_opt['u']) 2818 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2819 2820 if (dump_opt['D']) 2821 dump_all_ddts(spa); 2822 2823 if (dump_opt['d'] > 2 || dump_opt['m']) 2824 dump_metaslabs(spa); 2825 2826 if (dump_opt['d'] || dump_opt['i']) { 2827 dump_dir(dp->dp_meta_objset); 2828 if (dump_opt['d'] >= 3) { 2829 dump_bpobj(&spa->spa_deferred_bpobj, 2830 "Deferred frees", 0); 2831 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2832 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2833 "Pool snapshot frees", 0); 2834 } 2835 2836 if (spa_feature_is_active(spa, 2837 SPA_FEATURE_ASYNC_DESTROY)) { 2838 dump_bptree(spa->spa_meta_objset, 2839 spa->spa_dsl_pool->dp_bptree_obj, 2840 "Pool dataset frees"); 2841 } 2842 dump_dtl(spa->spa_root_vdev, 0); 2843 } 2844 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2845 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2846 } 2847 if (dump_opt['b'] || dump_opt['c']) 2848 rc = dump_block_stats(spa); 2849 2850 if (rc == 0) 2851 rc = verify_spacemap_refcounts(spa); 2852 2853 if (dump_opt['s']) 2854 show_pool_stats(spa); 2855 2856 if (dump_opt['h']) 2857 dump_history(spa); 2858 2859 if (rc != 0) 2860 exit(rc); 2861} 2862 2863#define ZDB_FLAG_CHECKSUM 0x0001 2864#define ZDB_FLAG_DECOMPRESS 0x0002 2865#define ZDB_FLAG_BSWAP 0x0004 2866#define ZDB_FLAG_GBH 0x0008 2867#define ZDB_FLAG_INDIRECT 0x0010 2868#define ZDB_FLAG_PHYS 0x0020 2869#define ZDB_FLAG_RAW 0x0040 2870#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2871 2872int flagbits[256]; 2873 2874static void 2875zdb_print_blkptr(blkptr_t *bp, int flags) 2876{ 2877 char blkbuf[BP_SPRINTF_LEN]; 2878 2879 if (flags & ZDB_FLAG_BSWAP) 2880 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2881 2882 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2883 (void) printf("%s\n", blkbuf); 2884} 2885 2886static void 2887zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2888{ 2889 int i; 2890 2891 for (i = 0; i < nbps; i++) 2892 zdb_print_blkptr(&bp[i], flags); 2893} 2894 2895static void 2896zdb_dump_gbh(void *buf, int flags) 2897{ 2898 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2899} 2900 2901static void 2902zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2903{ 2904 if (flags & ZDB_FLAG_BSWAP) 2905 byteswap_uint64_array(buf, size); 2906 (void) write(1, buf, size); 2907} 2908 2909static void 2910zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2911{ 2912 uint64_t *d = (uint64_t *)buf; 2913 int nwords = size / sizeof (uint64_t); 2914 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2915 int i, j; 2916 char *hdr, *c; 2917 2918 2919 if (do_bswap) 2920 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2921 else 2922 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2923 2924 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2925 2926 for (i = 0; i < nwords; i += 2) { 2927 (void) printf("%06llx: %016llx %016llx ", 2928 (u_longlong_t)(i * sizeof (uint64_t)), 2929 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2930 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2931 2932 c = (char *)&d[i]; 2933 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2934 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2935 (void) printf("\n"); 2936 } 2937} 2938 2939/* 2940 * There are two acceptable formats: 2941 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2942 * child[.child]* - For example: 0.1.1 2943 * 2944 * The second form can be used to specify arbitrary vdevs anywhere 2945 * in the heirarchy. For example, in a pool with a mirror of 2946 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2947 */ 2948static vdev_t * 2949zdb_vdev_lookup(vdev_t *vdev, char *path) 2950{ 2951 char *s, *p, *q; 2952 int i; 2953 2954 if (vdev == NULL) 2955 return (NULL); 2956 2957 /* First, assume the x.x.x.x format */ 2958 i = (int)strtoul(path, &s, 10); 2959 if (s == path || (s && *s != '.' && *s != '\0')) 2960 goto name; 2961 if (i < 0 || i >= vdev->vdev_children) 2962 return (NULL); 2963 2964 vdev = vdev->vdev_child[i]; 2965 if (*s == '\0') 2966 return (vdev); 2967 return (zdb_vdev_lookup(vdev, s+1)); 2968 2969name: 2970 for (i = 0; i < vdev->vdev_children; i++) { 2971 vdev_t *vc = vdev->vdev_child[i]; 2972 2973 if (vc->vdev_path == NULL) { 2974 vc = zdb_vdev_lookup(vc, path); 2975 if (vc == NULL) 2976 continue; 2977 else 2978 return (vc); 2979 } 2980 2981 p = strrchr(vc->vdev_path, '/'); 2982 p = p ? p + 1 : vc->vdev_path; 2983 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2984 2985 if (strcmp(vc->vdev_path, path) == 0) 2986 return (vc); 2987 if (strcmp(p, path) == 0) 2988 return (vc); 2989 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2990 return (vc); 2991 } 2992 2993 return (NULL); 2994} 2995 2996/* 2997 * Read a block from a pool and print it out. The syntax of the 2998 * block descriptor is: 2999 * 3000 * pool:vdev_specifier:offset:size[:flags] 3001 * 3002 * pool - The name of the pool you wish to read from 3003 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3004 * offset - offset, in hex, in bytes 3005 * size - Amount of data to read, in hex, in bytes 3006 * flags - A string of characters specifying options 3007 * b: Decode a blkptr at given offset within block 3008 * *c: Calculate and display checksums 3009 * d: Decompress data before dumping 3010 * e: Byteswap data before dumping 3011 * g: Display data as a gang block header 3012 * i: Display as an indirect block 3013 * p: Do I/O to physical offset 3014 * r: Dump raw data to stdout 3015 * 3016 * * = not yet implemented 3017 */ 3018static void 3019zdb_read_block(char *thing, spa_t *spa) 3020{ 3021 blkptr_t blk, *bp = &blk; 3022 dva_t *dva = bp->blk_dva; 3023 int flags = 0; 3024 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3025 zio_t *zio; 3026 vdev_t *vd; 3027 void *pbuf, *lbuf, *buf; 3028 char *s, *p, *dup, *vdev, *flagstr; 3029 int i, error; 3030 3031 dup = strdup(thing); 3032 s = strtok(dup, ":"); 3033 vdev = s ? s : ""; 3034 s = strtok(NULL, ":"); 3035 offset = strtoull(s ? s : "", NULL, 16); 3036 s = strtok(NULL, ":"); 3037 size = strtoull(s ? s : "", NULL, 16); 3038 s = strtok(NULL, ":"); 3039 flagstr = s ? s : ""; 3040 3041 s = NULL; 3042 if (size == 0) 3043 s = "size must not be zero"; 3044 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3045 s = "size must be a multiple of sector size"; 3046 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3047 s = "offset must be a multiple of sector size"; 3048 if (s) { 3049 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3050 free(dup); 3051 return; 3052 } 3053 3054 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3055 for (i = 0; flagstr[i]; i++) { 3056 int bit = flagbits[(uchar_t)flagstr[i]]; 3057 3058 if (bit == 0) { 3059 (void) printf("***Invalid flag: %c\n", 3060 flagstr[i]); 3061 continue; 3062 } 3063 flags |= bit; 3064 3065 /* If it's not something with an argument, keep going */ 3066 if ((bit & (ZDB_FLAG_CHECKSUM | 3067 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3068 continue; 3069 3070 p = &flagstr[i + 1]; 3071 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3072 blkptr_offset = strtoull(p, &p, 16); 3073 if (*p != ':' && *p != '\0') { 3074 (void) printf("***Invalid flag arg: '%s'\n", s); 3075 free(dup); 3076 return; 3077 } 3078 i += p - &flagstr[i + 1]; /* skip over the number */ 3079 } 3080 } 3081 3082 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3083 if (vd == NULL) { 3084 (void) printf("***Invalid vdev: %s\n", vdev); 3085 free(dup); 3086 return; 3087 } else { 3088 if (vd->vdev_path) 3089 (void) fprintf(stderr, "Found vdev: %s\n", 3090 vd->vdev_path); 3091 else 3092 (void) fprintf(stderr, "Found vdev type: %s\n", 3093 vd->vdev_ops->vdev_op_type); 3094 } 3095 3096 psize = size; 3097 lsize = size; 3098 3099 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3100 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3101 3102 BP_ZERO(bp); 3103 3104 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3105 DVA_SET_OFFSET(&dva[0], offset); 3106 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3107 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3108 3109 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3110 3111 BP_SET_LSIZE(bp, lsize); 3112 BP_SET_PSIZE(bp, psize); 3113 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3114 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3115 BP_SET_TYPE(bp, DMU_OT_NONE); 3116 BP_SET_LEVEL(bp, 0); 3117 BP_SET_DEDUP(bp, 0); 3118 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3119 3120 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3121 zio = zio_root(spa, NULL, NULL, 0); 3122 3123 if (vd == vd->vdev_top) { 3124 /* 3125 * Treat this as a normal block read. 3126 */ 3127 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3128 ZIO_PRIORITY_SYNC_READ, 3129 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3130 } else { 3131 /* 3132 * Treat this as a vdev child I/O. 3133 */ 3134 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3135 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3136 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3137 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3138 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3139 } 3140 3141 error = zio_wait(zio); 3142 spa_config_exit(spa, SCL_STATE, FTAG); 3143 3144 if (error) { 3145 (void) printf("Read of %s failed, error: %d\n", thing, error); 3146 goto out; 3147 } 3148 3149 if (flags & ZDB_FLAG_DECOMPRESS) { 3150 /* 3151 * We don't know how the data was compressed, so just try 3152 * every decompress function at every inflated blocksize. 3153 */ 3154 enum zio_compress c; 3155 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3156 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3157 3158 bcopy(pbuf, pbuf2, psize); 3159 3160 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3161 SPA_MAXBLOCKSIZE - psize) == 0); 3162 3163 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3164 SPA_MAXBLOCKSIZE - psize) == 0); 3165 3166 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3167 lsize -= SPA_MINBLOCKSIZE) { 3168 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3169 if (zio_decompress_data(c, pbuf, lbuf, 3170 psize, lsize) == 0 && 3171 zio_decompress_data(c, pbuf2, lbuf2, 3172 psize, lsize) == 0 && 3173 bcmp(lbuf, lbuf2, lsize) == 0) 3174 break; 3175 } 3176 if (c != ZIO_COMPRESS_FUNCTIONS) 3177 break; 3178 lsize -= SPA_MINBLOCKSIZE; 3179 } 3180 3181 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3182 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3183 3184 if (lsize <= psize) { 3185 (void) printf("Decompress of %s failed\n", thing); 3186 goto out; 3187 } 3188 buf = lbuf; 3189 size = lsize; 3190 } else { 3191 buf = pbuf; 3192 size = psize; 3193 } 3194 3195 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3196 zdb_print_blkptr((blkptr_t *)(void *) 3197 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3198 else if (flags & ZDB_FLAG_RAW) 3199 zdb_dump_block_raw(buf, size, flags); 3200 else if (flags & ZDB_FLAG_INDIRECT) 3201 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3202 flags); 3203 else if (flags & ZDB_FLAG_GBH) 3204 zdb_dump_gbh(buf, flags); 3205 else 3206 zdb_dump_block(thing, buf, size, flags); 3207 3208out: 3209 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3210 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3211 free(dup); 3212} 3213 3214static boolean_t 3215pool_match(nvlist_t *cfg, char *tgt) 3216{ 3217 uint64_t v, guid = strtoull(tgt, NULL, 0); 3218 char *s; 3219 3220 if (guid != 0) { 3221 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3222 return (v == guid); 3223 } else { 3224 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3225 return (strcmp(s, tgt) == 0); 3226 } 3227 return (B_FALSE); 3228} 3229 3230static char * 3231find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3232{ 3233 nvlist_t *pools; 3234 nvlist_t *match = NULL; 3235 char *name = NULL; 3236 char *sepp = NULL; 3237 char sep; 3238 int count = 0; 3239 importargs_t args = { 0 }; 3240 3241 args.paths = dirc; 3242 args.path = dirv; 3243 args.can_be_active = B_TRUE; 3244 3245 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3246 sep = *sepp; 3247 *sepp = '\0'; 3248 } 3249 3250 pools = zpool_search_import(g_zfs, &args); 3251 3252 if (pools != NULL) { 3253 nvpair_t *elem = NULL; 3254 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3255 verify(nvpair_value_nvlist(elem, configp) == 0); 3256 if (pool_match(*configp, *target)) { 3257 count++; 3258 if (match != NULL) { 3259 /* print previously found config */ 3260 if (name != NULL) { 3261 (void) printf("%s\n", name); 3262 dump_nvlist(match, 8); 3263 name = NULL; 3264 } 3265 (void) printf("%s\n", 3266 nvpair_name(elem)); 3267 dump_nvlist(*configp, 8); 3268 } else { 3269 match = *configp; 3270 name = nvpair_name(elem); 3271 } 3272 } 3273 } 3274 } 3275 if (count > 1) 3276 (void) fatal("\tMatched %d pools - use pool GUID " 3277 "instead of pool name or \n" 3278 "\tpool name part of a dataset name to select pool", count); 3279 3280 if (sepp) 3281 *sepp = sep; 3282 /* 3283 * If pool GUID was specified for pool id, replace it with pool name 3284 */ 3285 if (name && (strstr(*target, name) != *target)) { 3286 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3287 3288 *target = umem_alloc(sz, UMEM_NOFAIL); 3289 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3290 } 3291 3292 *configp = name ? match : NULL; 3293 3294 return (name); 3295} 3296 3297int 3298main(int argc, char **argv) 3299{ 3300 int i, c; 3301 struct rlimit rl = { 1024, 1024 }; 3302 spa_t *spa = NULL; 3303 objset_t *os = NULL; 3304 int dump_all = 1; 3305 int verbose = 0; 3306 int error = 0; 3307 char **searchdirs = NULL; 3308 int nsearch = 0; 3309 char *target; 3310 nvlist_t *policy = NULL; 3311 uint64_t max_txg = UINT64_MAX; 3312 int rewind = ZPOOL_NEVER_REWIND; 3313 3314 (void) setrlimit(RLIMIT_NOFILE, &rl); 3315 (void) enable_extended_FILE_stdio(-1, -1); 3316 3317 dprintf_setup(&argc, argv); 3318 3319 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3320 switch (c) { 3321 case 'b': 3322 case 'c': 3323 case 'd': 3324 case 'h': 3325 case 'i': 3326 case 'l': 3327 case 'm': 3328 case 's': 3329 case 'u': 3330 case 'C': 3331 case 'D': 3332 case 'R': 3333 case 'S': 3334 dump_opt[c]++; 3335 dump_all = 0; 3336 break; 3337 case 'A': 3338 case 'F': 3339 case 'L': 3340 case 'X': 3341 case 'e': 3342 case 'P': 3343 dump_opt[c]++; 3344 break; 3345 case 'v': 3346 verbose++; 3347 break; 3348 case 'M': 3349 max_inflight = strtoull(optarg, NULL, 0); 3350 if (max_inflight == 0) { 3351 (void) fprintf(stderr, "maximum number " 3352 "of inflight I/Os must be greater " 3353 "than 0\n"); 3354 usage(); 3355 } 3356 break; 3357 case 'p': 3358 if (searchdirs == NULL) { 3359 searchdirs = umem_alloc(sizeof (char *), 3360 UMEM_NOFAIL); 3361 } else { 3362 char **tmp = umem_alloc((nsearch + 1) * 3363 sizeof (char *), UMEM_NOFAIL); 3364 bcopy(searchdirs, tmp, nsearch * 3365 sizeof (char *)); 3366 umem_free(searchdirs, 3367 nsearch * sizeof (char *)); 3368 searchdirs = tmp; 3369 } 3370 searchdirs[nsearch++] = optarg; 3371 break; 3372 case 't': 3373 max_txg = strtoull(optarg, NULL, 0); 3374 if (max_txg < TXG_INITIAL) { 3375 (void) fprintf(stderr, "incorrect txg " 3376 "specified: %s\n", optarg); 3377 usage(); 3378 } 3379 break; 3380 case 'U': 3381 spa_config_path = optarg; 3382 break; 3383 default: 3384 usage(); 3385 break; 3386 } 3387 } 3388 3389 if (!dump_opt['e'] && searchdirs != NULL) { 3390 (void) fprintf(stderr, "-p option requires use of -e\n"); 3391 usage(); 3392 } 3393 3394 kernel_init(FREAD); 3395 g_zfs = libzfs_init(); 3396 ASSERT(g_zfs != NULL); 3397 3398 if (dump_all) 3399 verbose = MAX(verbose, 1); 3400 3401 for (c = 0; c < 256; c++) { 3402 if (dump_all && !strchr("elAFLRSXP", c)) 3403 dump_opt[c] = 1; 3404 if (dump_opt[c]) 3405 dump_opt[c] += verbose; 3406 } 3407 3408 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3409 zfs_recover = (dump_opt['A'] > 1); 3410 3411 argc -= optind; 3412 argv += optind; 3413 3414 if (argc < 2 && dump_opt['R']) 3415 usage(); 3416 if (argc < 1) { 3417 if (!dump_opt['e'] && dump_opt['C']) { 3418 dump_cachefile(spa_config_path); 3419 return (0); 3420 } 3421 usage(); 3422 } 3423 3424 if (dump_opt['l']) { 3425 dump_label(argv[0]); 3426 return (0); 3427 } 3428 3429 if (dump_opt['X'] || dump_opt['F']) 3430 rewind = ZPOOL_DO_REWIND | 3431 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3432 3433 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3434 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3435 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3436 fatal("internal error: %s", strerror(ENOMEM)); 3437 3438 error = 0; 3439 target = argv[0]; 3440 3441 if (dump_opt['e']) { 3442 nvlist_t *cfg = NULL; 3443 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3444 3445 error = ENOENT; 3446 if (name) { 3447 if (dump_opt['C'] > 1) { 3448 (void) printf("\nConfiguration for import:\n"); 3449 dump_nvlist(cfg, 8); 3450 } 3451 if (nvlist_add_nvlist(cfg, 3452 ZPOOL_REWIND_POLICY, policy) != 0) { 3453 fatal("can't open '%s': %s", 3454 target, strerror(ENOMEM)); 3455 } 3456 if ((error = spa_import(name, cfg, NULL, 3457 ZFS_IMPORT_MISSING_LOG)) != 0) { 3458 error = spa_import(name, cfg, NULL, 3459 ZFS_IMPORT_VERBATIM); 3460 } 3461 } 3462 } 3463 3464 if (error == 0) { 3465 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3466 error = spa_open_rewind(target, &spa, FTAG, policy, 3467 NULL); 3468 if (error) { 3469 /* 3470 * If we're missing the log device then 3471 * try opening the pool after clearing the 3472 * log state. 3473 */ 3474 mutex_enter(&spa_namespace_lock); 3475 if ((spa = spa_lookup(target)) != NULL && 3476 spa->spa_log_state == SPA_LOG_MISSING) { 3477 spa->spa_log_state = SPA_LOG_CLEAR; 3478 error = 0; 3479 } 3480 mutex_exit(&spa_namespace_lock); 3481 3482 if (!error) { 3483 error = spa_open_rewind(target, &spa, 3484 FTAG, policy, NULL); 3485 } 3486 } 3487 } else { 3488 error = dmu_objset_own(target, DMU_OST_ANY, 3489 B_TRUE, FTAG, &os); 3490 } 3491 } 3492 nvlist_free(policy); 3493 3494 if (error) 3495 fatal("can't open '%s': %s", target, strerror(error)); 3496 3497 argv++; 3498 argc--; 3499 if (!dump_opt['R']) { 3500 if (argc > 0) { 3501 zopt_objects = argc; 3502 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3503 for (i = 0; i < zopt_objects; i++) { 3504 errno = 0; 3505 zopt_object[i] = strtoull(argv[i], NULL, 0); 3506 if (zopt_object[i] == 0 && errno != 0) 3507 fatal("bad number %s: %s", 3508 argv[i], strerror(errno)); 3509 } 3510 } 3511 if (os != NULL) { 3512 dump_dir(os); 3513 } else if (zopt_objects > 0 && !dump_opt['m']) { 3514 dump_dir(spa->spa_meta_objset); 3515 } else { 3516 dump_zpool(spa); 3517 } 3518 } else { 3519 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3520 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3521 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3522 flagbits['e'] = ZDB_FLAG_BSWAP; 3523 flagbits['g'] = ZDB_FLAG_GBH; 3524 flagbits['i'] = ZDB_FLAG_INDIRECT; 3525 flagbits['p'] = ZDB_FLAG_PHYS; 3526 flagbits['r'] = ZDB_FLAG_RAW; 3527 3528 for (i = 0; i < argc; i++) 3529 zdb_read_block(argv[i], spa); 3530 } 3531 3532 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3533 3534 fuid_table_destroy(); 3535 sa_loaded = B_FALSE; 3536 3537 libzfs_fini(g_zfs); 3538 kernel_fini(); 3539 3540 return (0); 3541} 3542