zdb.c revision 273349
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2014 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern boolean_t zfs_recover; 79#else 80boolean_t zfs_recover; 81#endif 82 83const char cmdname[] = "zdb"; 84uint8_t dump_opt[256]; 85 86typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88extern void dump_intent_log(zilog_t *); 89uint64_t *zopt_object = NULL; 90int zopt_objects = 0; 91libzfs_handle_t *g_zfs; 92uint64_t max_inflight = 200; 93 94/* 95 * These libumem hooks provide a reasonable set of defaults for the allocator's 96 * debugging facilities. 97 */ 98const char * 99_umem_debug_init() 100{ 101 return ("default,verbose"); /* $UMEM_DEBUG setting */ 102} 103 104const char * 105_umem_logging_init(void) 106{ 107 return ("fail,contents"); /* $UMEM_LOGGING setting */ 108} 109 110static void 111usage(void) 112{ 113 (void) fprintf(stderr, 114 "Usage: %s [-CumMdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-I inflight I/Os] [-x dumpdir] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -mM [-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, " -M metaslab groups\n"); 142 (void) fprintf(stderr, " -c checksum all metadata (twice for " 143 "all data) blocks\n"); 144 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 145 (void) fprintf(stderr, " -D dedup statistics\n"); 146 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 147 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 148 (void) fprintf(stderr, " -l dump label contents\n"); 149 (void) fprintf(stderr, " -L disable leak tracking (do not " 150 "load spacemaps)\n"); 151 (void) fprintf(stderr, " -R read and display block from a " 152 "device\n\n"); 153 (void) fprintf(stderr, " Below options are intended for use " 154 "with other options:\n"); 155 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 156 "panic recovery (-AA) or both (-AAA)\n"); 157 (void) fprintf(stderr, " -F attempt automatic rewind within " 158 "safe range of transaction groups\n"); 159 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 160 "cachefile\n"); 161 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 162 "work with dataset)\n"); 163 (void) fprintf(stderr, " -e pool is exported/destroyed/" 164 "has altroot/not in a cachefile\n"); 165 (void) fprintf(stderr, " -p <path> -- use one or more with " 166 "-e to specify path to vdev dir\n"); 167 (void) fprintf(stderr, " -x <dumpdir> -- " 168 "dump all read blocks into specified directory\n"); 169 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 170 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 171 "searching for uberblocks\n"); 172 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 173 "specify the maximum number of " 174 "checksumming I/Os [default is 200]\n"); 175 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 176 "to make only that option verbose\n"); 177 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 178 exit(1); 179} 180 181/* 182 * Called for usage errors that are discovered after a call to spa_open(), 183 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 184 */ 185 186static void 187fatal(const char *fmt, ...) 188{ 189 va_list ap; 190 191 va_start(ap, fmt); 192 (void) fprintf(stderr, "%s: ", cmdname); 193 (void) vfprintf(stderr, fmt, ap); 194 va_end(ap); 195 (void) fprintf(stderr, "\n"); 196 197 exit(1); 198} 199 200/* ARGSUSED */ 201static void 202dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 203{ 204 nvlist_t *nv; 205 size_t nvsize = *(uint64_t *)data; 206 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 207 208 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 209 210 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 211 212 umem_free(packed, nvsize); 213 214 dump_nvlist(nv, 8); 215 216 nvlist_free(nv); 217} 218 219/* ARGSUSED */ 220static void 221dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 222{ 223 spa_history_phys_t *shp = data; 224 225 if (shp == NULL) 226 return; 227 228 (void) printf("\t\tpool_create_len = %llu\n", 229 (u_longlong_t)shp->sh_pool_create_len); 230 (void) printf("\t\tphys_max_off = %llu\n", 231 (u_longlong_t)shp->sh_phys_max_off); 232 (void) printf("\t\tbof = %llu\n", 233 (u_longlong_t)shp->sh_bof); 234 (void) printf("\t\teof = %llu\n", 235 (u_longlong_t)shp->sh_eof); 236 (void) printf("\t\trecords_lost = %llu\n", 237 (u_longlong_t)shp->sh_records_lost); 238} 239 240static void 241zdb_nicenum(uint64_t num, char *buf) 242{ 243 if (dump_opt['P']) 244 (void) sprintf(buf, "%llu", (longlong_t)num); 245 else 246 nicenum(num, buf); 247} 248 249const char histo_stars[] = "****************************************"; 250const int histo_width = sizeof (histo_stars) - 1; 251 252static void 253dump_histogram(const uint64_t *histo, int size, int offset) 254{ 255 int i; 256 int minidx = size - 1; 257 int maxidx = 0; 258 uint64_t max = 0; 259 260 for (i = 0; i < size; i++) { 261 if (histo[i] > max) 262 max = histo[i]; 263 if (histo[i] > 0 && i > maxidx) 264 maxidx = i; 265 if (histo[i] > 0 && i < minidx) 266 minidx = i; 267 } 268 269 if (max < histo_width) 270 max = histo_width; 271 272 for (i = minidx; i <= maxidx; i++) { 273 (void) printf("\t\t\t%3u: %6llu %s\n", 274 i + offset, (u_longlong_t)histo[i], 275 &histo_stars[(max - histo[i]) * histo_width / max]); 276 } 277} 278 279static void 280dump_zap_stats(objset_t *os, uint64_t object) 281{ 282 int error; 283 zap_stats_t zs; 284 285 error = zap_get_stats(os, object, &zs); 286 if (error) 287 return; 288 289 if (zs.zs_ptrtbl_len == 0) { 290 ASSERT(zs.zs_num_blocks == 1); 291 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 292 (u_longlong_t)zs.zs_blocksize, 293 (u_longlong_t)zs.zs_num_entries); 294 return; 295 } 296 297 (void) printf("\tFat ZAP stats:\n"); 298 299 (void) printf("\t\tPointer table:\n"); 300 (void) printf("\t\t\t%llu elements\n", 301 (u_longlong_t)zs.zs_ptrtbl_len); 302 (void) printf("\t\t\tzt_blk: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 304 (void) printf("\t\t\tzt_numblks: %llu\n", 305 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 306 (void) printf("\t\t\tzt_shift: %llu\n", 307 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 308 (void) printf("\t\t\tzt_blks_copied: %llu\n", 309 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 310 (void) printf("\t\t\tzt_nextblk: %llu\n", 311 (u_longlong_t)zs.zs_ptrtbl_nextblk); 312 313 (void) printf("\t\tZAP entries: %llu\n", 314 (u_longlong_t)zs.zs_num_entries); 315 (void) printf("\t\tLeaf blocks: %llu\n", 316 (u_longlong_t)zs.zs_num_leafs); 317 (void) printf("\t\tTotal blocks: %llu\n", 318 (u_longlong_t)zs.zs_num_blocks); 319 (void) printf("\t\tzap_block_type: 0x%llx\n", 320 (u_longlong_t)zs.zs_block_type); 321 (void) printf("\t\tzap_magic: 0x%llx\n", 322 (u_longlong_t)zs.zs_magic); 323 (void) printf("\t\tzap_salt: 0x%llx\n", 324 (u_longlong_t)zs.zs_salt); 325 326 (void) printf("\t\tLeafs with 2^n pointers:\n"); 327 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 328 329 (void) printf("\t\tBlocks with n*5 entries:\n"); 330 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 331 332 (void) printf("\t\tBlocks n/10 full:\n"); 333 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 334 335 (void) printf("\t\tEntries with n chunks:\n"); 336 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 337 338 (void) printf("\t\tBuckets with n entries:\n"); 339 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 340} 341 342/*ARGSUSED*/ 343static void 344dump_none(objset_t *os, uint64_t object, void *data, size_t size) 345{ 346} 347 348/*ARGSUSED*/ 349static void 350dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 351{ 352 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 353} 354 355/*ARGSUSED*/ 356void 357dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 358{ 359} 360 361/*ARGSUSED*/ 362static void 363dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 364{ 365} 366 367/*ARGSUSED*/ 368static void 369dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 370{ 371 zap_cursor_t zc; 372 zap_attribute_t attr; 373 void *prop; 374 int i; 375 376 dump_zap_stats(os, object); 377 (void) printf("\n"); 378 379 for (zap_cursor_init(&zc, os, object); 380 zap_cursor_retrieve(&zc, &attr) == 0; 381 zap_cursor_advance(&zc)) { 382 (void) printf("\t\t%s = ", attr.za_name); 383 if (attr.za_num_integers == 0) { 384 (void) printf("\n"); 385 continue; 386 } 387 prop = umem_zalloc(attr.za_num_integers * 388 attr.za_integer_length, UMEM_NOFAIL); 389 (void) zap_lookup(os, object, attr.za_name, 390 attr.za_integer_length, attr.za_num_integers, prop); 391 if (attr.za_integer_length == 1) { 392 (void) printf("%s", (char *)prop); 393 } else { 394 for (i = 0; i < attr.za_num_integers; i++) { 395 switch (attr.za_integer_length) { 396 case 2: 397 (void) printf("%u ", 398 ((uint16_t *)prop)[i]); 399 break; 400 case 4: 401 (void) printf("%u ", 402 ((uint32_t *)prop)[i]); 403 break; 404 case 8: 405 (void) printf("%lld ", 406 (u_longlong_t)((int64_t *)prop)[i]); 407 break; 408 } 409 } 410 } 411 (void) printf("\n"); 412 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 413 } 414 zap_cursor_fini(&zc); 415} 416 417/*ARGSUSED*/ 418static void 419dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 420{ 421 dump_zap_stats(os, object); 422 /* contents are printed elsewhere, properly decoded */ 423} 424 425/*ARGSUSED*/ 426static void 427dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 428{ 429 zap_cursor_t zc; 430 zap_attribute_t attr; 431 432 dump_zap_stats(os, object); 433 (void) printf("\n"); 434 435 for (zap_cursor_init(&zc, os, object); 436 zap_cursor_retrieve(&zc, &attr) == 0; 437 zap_cursor_advance(&zc)) { 438 (void) printf("\t\t%s = ", attr.za_name); 439 if (attr.za_num_integers == 0) { 440 (void) printf("\n"); 441 continue; 442 } 443 (void) printf(" %llx : [%d:%d:%d]\n", 444 (u_longlong_t)attr.za_first_integer, 445 (int)ATTR_LENGTH(attr.za_first_integer), 446 (int)ATTR_BSWAP(attr.za_first_integer), 447 (int)ATTR_NUM(attr.za_first_integer)); 448 } 449 zap_cursor_fini(&zc); 450} 451 452/*ARGSUSED*/ 453static void 454dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 455{ 456 zap_cursor_t zc; 457 zap_attribute_t attr; 458 uint16_t *layout_attrs; 459 int i; 460 461 dump_zap_stats(os, object); 462 (void) printf("\n"); 463 464 for (zap_cursor_init(&zc, os, object); 465 zap_cursor_retrieve(&zc, &attr) == 0; 466 zap_cursor_advance(&zc)) { 467 (void) printf("\t\t%s = [", attr.za_name); 468 if (attr.za_num_integers == 0) { 469 (void) printf("\n"); 470 continue; 471 } 472 473 VERIFY(attr.za_integer_length == 2); 474 layout_attrs = umem_zalloc(attr.za_num_integers * 475 attr.za_integer_length, UMEM_NOFAIL); 476 477 VERIFY(zap_lookup(os, object, attr.za_name, 478 attr.za_integer_length, 479 attr.za_num_integers, layout_attrs) == 0); 480 481 for (i = 0; i != attr.za_num_integers; i++) 482 (void) printf(" %d ", (int)layout_attrs[i]); 483 (void) printf("]\n"); 484 umem_free(layout_attrs, 485 attr.za_num_integers * attr.za_integer_length); 486 } 487 zap_cursor_fini(&zc); 488} 489 490/*ARGSUSED*/ 491static void 492dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 493{ 494 zap_cursor_t zc; 495 zap_attribute_t attr; 496 const char *typenames[] = { 497 /* 0 */ "not specified", 498 /* 1 */ "FIFO", 499 /* 2 */ "Character Device", 500 /* 3 */ "3 (invalid)", 501 /* 4 */ "Directory", 502 /* 5 */ "5 (invalid)", 503 /* 6 */ "Block Device", 504 /* 7 */ "7 (invalid)", 505 /* 8 */ "Regular File", 506 /* 9 */ "9 (invalid)", 507 /* 10 */ "Symbolic Link", 508 /* 11 */ "11 (invalid)", 509 /* 12 */ "Socket", 510 /* 13 */ "Door", 511 /* 14 */ "Event Port", 512 /* 15 */ "15 (invalid)", 513 }; 514 515 dump_zap_stats(os, object); 516 (void) printf("\n"); 517 518 for (zap_cursor_init(&zc, os, object); 519 zap_cursor_retrieve(&zc, &attr) == 0; 520 zap_cursor_advance(&zc)) { 521 (void) printf("\t\t%s = %lld (type: %s)\n", 522 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 523 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 524 } 525 zap_cursor_fini(&zc); 526} 527 528int 529get_dtl_refcount(vdev_t *vd) 530{ 531 int refcount = 0; 532 533 if (vd->vdev_ops->vdev_op_leaf) { 534 space_map_t *sm = vd->vdev_dtl_sm; 535 536 if (sm != NULL && 537 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 538 return (1); 539 return (0); 540 } 541 542 for (int c = 0; c < vd->vdev_children; c++) 543 refcount += get_dtl_refcount(vd->vdev_child[c]); 544 return (refcount); 545} 546 547int 548get_metaslab_refcount(vdev_t *vd) 549{ 550 int refcount = 0; 551 552 if (vd->vdev_top == vd && !vd->vdev_removing) { 553 for (int m = 0; m < vd->vdev_ms_count; m++) { 554 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 555 556 if (sm != NULL && 557 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 558 refcount++; 559 } 560 } 561 for (int c = 0; c < vd->vdev_children; c++) 562 refcount += get_metaslab_refcount(vd->vdev_child[c]); 563 564 return (refcount); 565} 566 567static int 568verify_spacemap_refcounts(spa_t *spa) 569{ 570 uint64_t expected_refcount = 0; 571 uint64_t actual_refcount; 572 573 (void) feature_get_refcount(spa, 574 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 575 &expected_refcount); 576 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 577 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 578 579 if (expected_refcount != actual_refcount) { 580 (void) printf("space map refcount mismatch: expected %lld != " 581 "actual %lld\n", 582 (longlong_t)expected_refcount, 583 (longlong_t)actual_refcount); 584 return (2); 585 } 586 return (0); 587} 588 589static void 590dump_spacemap(objset_t *os, space_map_t *sm) 591{ 592 uint64_t alloc, offset, entry; 593 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 594 "INVALID", "INVALID", "INVALID", "INVALID" }; 595 596 if (sm == NULL) 597 return; 598 599 /* 600 * Print out the freelist entries in both encoded and decoded form. 601 */ 602 alloc = 0; 603 for (offset = 0; offset < space_map_length(sm); 604 offset += sizeof (entry)) { 605 uint8_t mapshift = sm->sm_shift; 606 607 VERIFY0(dmu_read(os, space_map_object(sm), offset, 608 sizeof (entry), &entry, DMU_READ_PREFETCH)); 609 if (SM_DEBUG_DECODE(entry)) { 610 611 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 612 (u_longlong_t)(offset / sizeof (entry)), 613 ddata[SM_DEBUG_ACTION_DECODE(entry)], 614 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 615 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 616 } else { 617 (void) printf("\t [%6llu] %c range:" 618 " %010llx-%010llx size: %06llx\n", 619 (u_longlong_t)(offset / sizeof (entry)), 620 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 621 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 622 mapshift) + sm->sm_start), 623 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 624 mapshift) + sm->sm_start + 625 (SM_RUN_DECODE(entry) << mapshift)), 626 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 627 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 628 alloc += SM_RUN_DECODE(entry) << mapshift; 629 else 630 alloc -= SM_RUN_DECODE(entry) << mapshift; 631 } 632 } 633 if (alloc != space_map_allocated(sm)) { 634 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 635 "with space map summary (%llu)\n", 636 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 637 } 638} 639 640static void 641dump_metaslab_stats(metaslab_t *msp) 642{ 643 char maxbuf[32]; 644 range_tree_t *rt = msp->ms_tree; 645 avl_tree_t *t = &msp->ms_size_tree; 646 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 647 648 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 649 650 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 651 "segments", avl_numnodes(t), "maxsize", maxbuf, 652 "freepct", free_pct); 653 (void) printf("\tIn-memory histogram:\n"); 654 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 655} 656 657static void 658dump_metaslab(metaslab_t *msp) 659{ 660 vdev_t *vd = msp->ms_group->mg_vd; 661 spa_t *spa = vd->vdev_spa; 662 space_map_t *sm = msp->ms_sm; 663 char freebuf[32]; 664 665 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 666 667 (void) printf( 668 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 669 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 670 (u_longlong_t)space_map_object(sm), freebuf); 671 672 if (dump_opt['m'] > 2 && !dump_opt['L']) { 673 mutex_enter(&msp->ms_lock); 674 metaslab_load_wait(msp); 675 if (!msp->ms_loaded) { 676 VERIFY0(metaslab_load(msp)); 677 range_tree_stat_verify(msp->ms_tree); 678 } 679 dump_metaslab_stats(msp); 680 metaslab_unload(msp); 681 mutex_exit(&msp->ms_lock); 682 } 683 684 if (dump_opt['m'] > 1 && sm != NULL && 685 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 686 /* 687 * The space map histogram represents free space in chunks 688 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 689 */ 690 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 691 (u_longlong_t)msp->ms_fragmentation); 692 dump_histogram(sm->sm_phys->smp_histogram, 693 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 694 } 695 696 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 697 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 698 699 mutex_enter(&msp->ms_lock); 700 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 701 mutex_exit(&msp->ms_lock); 702 } 703} 704 705static void 706print_vdev_metaslab_header(vdev_t *vd) 707{ 708 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 709 (u_longlong_t)vd->vdev_id, 710 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 711 "offset", "spacemap", "free"); 712 (void) printf("\t%15s %19s %15s %10s\n", 713 "---------------", "-------------------", 714 "---------------", "-------------"); 715} 716 717static void 718dump_metaslab_groups(spa_t *spa) 719{ 720 vdev_t *rvd = spa->spa_root_vdev; 721 metaslab_class_t *mc = spa_normal_class(spa); 722 uint64_t fragmentation; 723 724 metaslab_class_histogram_verify(mc); 725 726 for (int c = 0; c < rvd->vdev_children; c++) { 727 vdev_t *tvd = rvd->vdev_child[c]; 728 metaslab_group_t *mg = tvd->vdev_mg; 729 730 if (mg->mg_class != mc) 731 continue; 732 733 metaslab_group_histogram_verify(mg); 734 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 735 736 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 737 "fragmentation", 738 (u_longlong_t)tvd->vdev_id, 739 (u_longlong_t)tvd->vdev_ms_count); 740 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 741 (void) printf("%3s\n", "-"); 742 } else { 743 (void) printf("%3llu%%\n", 744 (u_longlong_t)mg->mg_fragmentation); 745 } 746 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 747 } 748 749 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 750 fragmentation = metaslab_class_fragmentation(mc); 751 if (fragmentation == ZFS_FRAG_INVALID) 752 (void) printf("\t%3s\n", "-"); 753 else 754 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 755 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 756} 757 758static void 759dump_metaslabs(spa_t *spa) 760{ 761 vdev_t *vd, *rvd = spa->spa_root_vdev; 762 uint64_t m, c = 0, children = rvd->vdev_children; 763 764 (void) printf("\nMetaslabs:\n"); 765 766 if (!dump_opt['d'] && zopt_objects > 0) { 767 c = zopt_object[0]; 768 769 if (c >= children) 770 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 771 772 if (zopt_objects > 1) { 773 vd = rvd->vdev_child[c]; 774 print_vdev_metaslab_header(vd); 775 776 for (m = 1; m < zopt_objects; m++) { 777 if (zopt_object[m] < vd->vdev_ms_count) 778 dump_metaslab( 779 vd->vdev_ms[zopt_object[m]]); 780 else 781 (void) fprintf(stderr, "bad metaslab " 782 "number %llu\n", 783 (u_longlong_t)zopt_object[m]); 784 } 785 (void) printf("\n"); 786 return; 787 } 788 children = c + 1; 789 } 790 for (; c < children; c++) { 791 vd = rvd->vdev_child[c]; 792 print_vdev_metaslab_header(vd); 793 794 for (m = 0; m < vd->vdev_ms_count; m++) 795 dump_metaslab(vd->vdev_ms[m]); 796 (void) printf("\n"); 797 } 798} 799 800static void 801dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 802{ 803 const ddt_phys_t *ddp = dde->dde_phys; 804 const ddt_key_t *ddk = &dde->dde_key; 805 char *types[4] = { "ditto", "single", "double", "triple" }; 806 char blkbuf[BP_SPRINTF_LEN]; 807 blkptr_t blk; 808 809 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 810 if (ddp->ddp_phys_birth == 0) 811 continue; 812 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 813 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 814 (void) printf("index %llx refcnt %llu %s %s\n", 815 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 816 types[p], blkbuf); 817 } 818} 819 820static void 821dump_dedup_ratio(const ddt_stat_t *dds) 822{ 823 double rL, rP, rD, D, dedup, compress, copies; 824 825 if (dds->dds_blocks == 0) 826 return; 827 828 rL = (double)dds->dds_ref_lsize; 829 rP = (double)dds->dds_ref_psize; 830 rD = (double)dds->dds_ref_dsize; 831 D = (double)dds->dds_dsize; 832 833 dedup = rD / D; 834 compress = rL / rP; 835 copies = rD / rP; 836 837 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 838 "dedup * compress / copies = %.2f\n\n", 839 dedup, compress, copies, dedup * compress / copies); 840} 841 842static void 843dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 844{ 845 char name[DDT_NAMELEN]; 846 ddt_entry_t dde; 847 uint64_t walk = 0; 848 dmu_object_info_t doi; 849 uint64_t count, dspace, mspace; 850 int error; 851 852 error = ddt_object_info(ddt, type, class, &doi); 853 854 if (error == ENOENT) 855 return; 856 ASSERT(error == 0); 857 858 error = ddt_object_count(ddt, type, class, &count); 859 ASSERT(error == 0); 860 if (count == 0) 861 return; 862 863 dspace = doi.doi_physical_blocks_512 << 9; 864 mspace = doi.doi_fill_count * doi.doi_data_block_size; 865 866 ddt_object_name(ddt, type, class, name); 867 868 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 869 name, 870 (u_longlong_t)count, 871 (u_longlong_t)(dspace / count), 872 (u_longlong_t)(mspace / count)); 873 874 if (dump_opt['D'] < 3) 875 return; 876 877 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 878 879 if (dump_opt['D'] < 4) 880 return; 881 882 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 883 return; 884 885 (void) printf("%s contents:\n\n", name); 886 887 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 888 dump_dde(ddt, &dde, walk); 889 890 ASSERT(error == ENOENT); 891 892 (void) printf("\n"); 893} 894 895static void 896dump_all_ddts(spa_t *spa) 897{ 898 ddt_histogram_t ddh_total = { 0 }; 899 ddt_stat_t dds_total = { 0 }; 900 901 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 902 ddt_t *ddt = spa->spa_ddt[c]; 903 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 904 for (enum ddt_class class = 0; class < DDT_CLASSES; 905 class++) { 906 dump_ddt(ddt, type, class); 907 } 908 } 909 } 910 911 ddt_get_dedup_stats(spa, &dds_total); 912 913 if (dds_total.dds_blocks == 0) { 914 (void) printf("All DDTs are empty\n"); 915 return; 916 } 917 918 (void) printf("\n"); 919 920 if (dump_opt['D'] > 1) { 921 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 922 ddt_get_dedup_histogram(spa, &ddh_total); 923 zpool_dump_ddt(&dds_total, &ddh_total); 924 } 925 926 dump_dedup_ratio(&dds_total); 927} 928 929static void 930dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 931{ 932 char *prefix = arg; 933 934 (void) printf("%s [%llu,%llu) length %llu\n", 935 prefix, 936 (u_longlong_t)start, 937 (u_longlong_t)(start + size), 938 (u_longlong_t)(size)); 939} 940 941static void 942dump_dtl(vdev_t *vd, int indent) 943{ 944 spa_t *spa = vd->vdev_spa; 945 boolean_t required; 946 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 947 char prefix[256]; 948 949 spa_vdev_state_enter(spa, SCL_NONE); 950 required = vdev_dtl_required(vd); 951 (void) spa_vdev_state_exit(spa, NULL, 0); 952 953 if (indent == 0) 954 (void) printf("\nDirty time logs:\n\n"); 955 956 (void) printf("\t%*s%s [%s]\n", indent, "", 957 vd->vdev_path ? vd->vdev_path : 958 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 959 required ? "DTL-required" : "DTL-expendable"); 960 961 for (int t = 0; t < DTL_TYPES; t++) { 962 range_tree_t *rt = vd->vdev_dtl[t]; 963 if (range_tree_space(rt) == 0) 964 continue; 965 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 966 indent + 2, "", name[t]); 967 mutex_enter(rt->rt_lock); 968 range_tree_walk(rt, dump_dtl_seg, prefix); 969 mutex_exit(rt->rt_lock); 970 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 971 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 972 } 973 974 for (int c = 0; c < vd->vdev_children; c++) 975 dump_dtl(vd->vdev_child[c], indent + 4); 976} 977 978/* from spa_history.c: spa_history_create_obj() */ 979#define HIS_BUF_LEN_DEF (128 << 10) 980#define HIS_BUF_LEN_MAX (1 << 30) 981 982static void 983dump_history(spa_t *spa) 984{ 985 nvlist_t **events = NULL; 986 char *buf = NULL; 987 uint64_t bufsize = HIS_BUF_LEN_DEF; 988 uint64_t resid, len, off = 0; 989 uint_t num = 0; 990 int error; 991 time_t tsec; 992 struct tm t; 993 char tbuf[30]; 994 char internalstr[MAXPATHLEN]; 995 996 if ((buf = malloc(bufsize)) == NULL) 997 (void) fprintf(stderr, "Unable to read history: " 998 "out of memory\n"); 999 do { 1000 len = bufsize; 1001 1002 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1003 (void) fprintf(stderr, "Unable to read history: " 1004 "error %d\n", error); 1005 return; 1006 } 1007 1008 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1009 break; 1010 off -= resid; 1011 1012 /* 1013 * If the history block is too big, double the buffer 1014 * size and try again. 1015 */ 1016 if (resid == len) { 1017 free(buf); 1018 buf = NULL; 1019 1020 bufsize <<= 1; 1021 if ((bufsize >= HIS_BUF_LEN_MAX) || 1022 ((buf = malloc(bufsize)) == NULL)) { 1023 (void) fprintf(stderr, "Unable to read history: " 1024 "out of memory\n"); 1025 return; 1026 } 1027 } 1028 } while (len != 0); 1029 free(buf); 1030 1031 (void) printf("\nHistory:\n"); 1032 for (int i = 0; i < num; i++) { 1033 uint64_t time, txg, ievent; 1034 char *cmd, *intstr; 1035 boolean_t printed = B_FALSE; 1036 1037 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1038 &time) != 0) 1039 goto next; 1040 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1041 &cmd) != 0) { 1042 if (nvlist_lookup_uint64(events[i], 1043 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1044 goto next; 1045 verify(nvlist_lookup_uint64(events[i], 1046 ZPOOL_HIST_TXG, &txg) == 0); 1047 verify(nvlist_lookup_string(events[i], 1048 ZPOOL_HIST_INT_STR, &intstr) == 0); 1049 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1050 goto next; 1051 1052 (void) snprintf(internalstr, 1053 sizeof (internalstr), 1054 "[internal %s txg:%lld] %s", 1055 zfs_history_event_names[ievent], txg, 1056 intstr); 1057 cmd = internalstr; 1058 } 1059 tsec = time; 1060 (void) localtime_r(&tsec, &t); 1061 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1062 (void) printf("%s %s\n", tbuf, cmd); 1063 printed = B_TRUE; 1064 1065next: 1066 if (dump_opt['h'] > 1) { 1067 if (!printed) 1068 (void) printf("unrecognized record:\n"); 1069 dump_nvlist(events[i], 2); 1070 } 1071 } 1072} 1073 1074/*ARGSUSED*/ 1075static void 1076dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1077{ 1078} 1079 1080static uint64_t 1081blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1082 const zbookmark_phys_t *zb) 1083{ 1084 if (dnp == NULL) { 1085 ASSERT(zb->zb_level < 0); 1086 if (zb->zb_object == 0) 1087 return (zb->zb_blkid); 1088 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1089 } 1090 1091 ASSERT(zb->zb_level >= 0); 1092 1093 return ((zb->zb_blkid << 1094 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1095 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1096} 1097 1098static void 1099snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1100{ 1101 const dva_t *dva = bp->blk_dva; 1102 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1103 1104 if (dump_opt['b'] >= 6) { 1105 snprintf_blkptr(blkbuf, buflen, bp); 1106 return; 1107 } 1108 1109 if (BP_IS_EMBEDDED(bp)) { 1110 (void) sprintf(blkbuf, 1111 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1112 (int)BPE_GET_ETYPE(bp), 1113 (u_longlong_t)BPE_GET_LSIZE(bp), 1114 (u_longlong_t)BPE_GET_PSIZE(bp), 1115 (u_longlong_t)bp->blk_birth); 1116 return; 1117 } 1118 1119 blkbuf[0] = '\0'; 1120 for (int i = 0; i < ndvas; i++) 1121 (void) snprintf(blkbuf + strlen(blkbuf), 1122 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1123 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1124 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1125 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1126 1127 if (BP_IS_HOLE(bp)) { 1128 (void) snprintf(blkbuf + strlen(blkbuf), 1129 buflen - strlen(blkbuf), "B=%llu", 1130 (u_longlong_t)bp->blk_birth); 1131 } else { 1132 (void) snprintf(blkbuf + strlen(blkbuf), 1133 buflen - strlen(blkbuf), 1134 "%llxL/%llxP F=%llu B=%llu/%llu", 1135 (u_longlong_t)BP_GET_LSIZE(bp), 1136 (u_longlong_t)BP_GET_PSIZE(bp), 1137 (u_longlong_t)BP_GET_FILL(bp), 1138 (u_longlong_t)bp->blk_birth, 1139 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1140 } 1141} 1142 1143static void 1144print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1145 const dnode_phys_t *dnp) 1146{ 1147 char blkbuf[BP_SPRINTF_LEN]; 1148 int l; 1149 1150 if (!BP_IS_EMBEDDED(bp)) { 1151 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1152 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1153 } 1154 1155 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1156 1157 ASSERT(zb->zb_level >= 0); 1158 1159 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1160 if (l == zb->zb_level) { 1161 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1162 } else { 1163 (void) printf(" "); 1164 } 1165 } 1166 1167 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1168 (void) printf("%s\n", blkbuf); 1169} 1170 1171static int 1172visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1173 blkptr_t *bp, const zbookmark_phys_t *zb) 1174{ 1175 int err = 0; 1176 1177 if (bp->blk_birth == 0) 1178 return (0); 1179 1180 print_indirect(bp, zb, dnp); 1181 1182 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1183 uint32_t flags = ARC_WAIT; 1184 int i; 1185 blkptr_t *cbp; 1186 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1187 arc_buf_t *buf; 1188 uint64_t fill = 0; 1189 1190 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1191 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1192 if (err) 1193 return (err); 1194 ASSERT(buf->b_data); 1195 1196 /* recursively visit blocks below this */ 1197 cbp = buf->b_data; 1198 for (i = 0; i < epb; i++, cbp++) { 1199 zbookmark_phys_t czb; 1200 1201 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1202 zb->zb_level - 1, 1203 zb->zb_blkid * epb + i); 1204 err = visit_indirect(spa, dnp, cbp, &czb); 1205 if (err) 1206 break; 1207 fill += BP_GET_FILL(cbp); 1208 } 1209 if (!err) 1210 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1211 (void) arc_buf_remove_ref(buf, &buf); 1212 } 1213 1214 return (err); 1215} 1216 1217/*ARGSUSED*/ 1218static void 1219dump_indirect(dnode_t *dn) 1220{ 1221 dnode_phys_t *dnp = dn->dn_phys; 1222 int j; 1223 zbookmark_phys_t czb; 1224 1225 (void) printf("Indirect blocks:\n"); 1226 1227 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1228 dn->dn_object, dnp->dn_nlevels - 1, 0); 1229 for (j = 0; j < dnp->dn_nblkptr; j++) { 1230 czb.zb_blkid = j; 1231 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1232 &dnp->dn_blkptr[j], &czb); 1233 } 1234 1235 (void) printf("\n"); 1236} 1237 1238/*ARGSUSED*/ 1239static void 1240dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1241{ 1242 dsl_dir_phys_t *dd = data; 1243 time_t crtime; 1244 char nice[32]; 1245 1246 if (dd == NULL) 1247 return; 1248 1249 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1250 1251 crtime = dd->dd_creation_time; 1252 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1253 (void) printf("\t\thead_dataset_obj = %llu\n", 1254 (u_longlong_t)dd->dd_head_dataset_obj); 1255 (void) printf("\t\tparent_dir_obj = %llu\n", 1256 (u_longlong_t)dd->dd_parent_obj); 1257 (void) printf("\t\torigin_obj = %llu\n", 1258 (u_longlong_t)dd->dd_origin_obj); 1259 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1260 (u_longlong_t)dd->dd_child_dir_zapobj); 1261 zdb_nicenum(dd->dd_used_bytes, nice); 1262 (void) printf("\t\tused_bytes = %s\n", nice); 1263 zdb_nicenum(dd->dd_compressed_bytes, nice); 1264 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1265 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1266 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1267 zdb_nicenum(dd->dd_quota, nice); 1268 (void) printf("\t\tquota = %s\n", nice); 1269 zdb_nicenum(dd->dd_reserved, nice); 1270 (void) printf("\t\treserved = %s\n", nice); 1271 (void) printf("\t\tprops_zapobj = %llu\n", 1272 (u_longlong_t)dd->dd_props_zapobj); 1273 (void) printf("\t\tdeleg_zapobj = %llu\n", 1274 (u_longlong_t)dd->dd_deleg_zapobj); 1275 (void) printf("\t\tflags = %llx\n", 1276 (u_longlong_t)dd->dd_flags); 1277 1278#define DO(which) \ 1279 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1280 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1281 DO(HEAD); 1282 DO(SNAP); 1283 DO(CHILD); 1284 DO(CHILD_RSRV); 1285 DO(REFRSRV); 1286#undef DO 1287} 1288 1289/*ARGSUSED*/ 1290static void 1291dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1292{ 1293 dsl_dataset_phys_t *ds = data; 1294 time_t crtime; 1295 char used[32], compressed[32], uncompressed[32], unique[32]; 1296 char blkbuf[BP_SPRINTF_LEN]; 1297 1298 if (ds == NULL) 1299 return; 1300 1301 ASSERT(size == sizeof (*ds)); 1302 crtime = ds->ds_creation_time; 1303 zdb_nicenum(ds->ds_referenced_bytes, used); 1304 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1305 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1306 zdb_nicenum(ds->ds_unique_bytes, unique); 1307 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1308 1309 (void) printf("\t\tdir_obj = %llu\n", 1310 (u_longlong_t)ds->ds_dir_obj); 1311 (void) printf("\t\tprev_snap_obj = %llu\n", 1312 (u_longlong_t)ds->ds_prev_snap_obj); 1313 (void) printf("\t\tprev_snap_txg = %llu\n", 1314 (u_longlong_t)ds->ds_prev_snap_txg); 1315 (void) printf("\t\tnext_snap_obj = %llu\n", 1316 (u_longlong_t)ds->ds_next_snap_obj); 1317 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1318 (u_longlong_t)ds->ds_snapnames_zapobj); 1319 (void) printf("\t\tnum_children = %llu\n", 1320 (u_longlong_t)ds->ds_num_children); 1321 (void) printf("\t\tuserrefs_obj = %llu\n", 1322 (u_longlong_t)ds->ds_userrefs_obj); 1323 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1324 (void) printf("\t\tcreation_txg = %llu\n", 1325 (u_longlong_t)ds->ds_creation_txg); 1326 (void) printf("\t\tdeadlist_obj = %llu\n", 1327 (u_longlong_t)ds->ds_deadlist_obj); 1328 (void) printf("\t\tused_bytes = %s\n", used); 1329 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1330 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1331 (void) printf("\t\tunique = %s\n", unique); 1332 (void) printf("\t\tfsid_guid = %llu\n", 1333 (u_longlong_t)ds->ds_fsid_guid); 1334 (void) printf("\t\tguid = %llu\n", 1335 (u_longlong_t)ds->ds_guid); 1336 (void) printf("\t\tflags = %llx\n", 1337 (u_longlong_t)ds->ds_flags); 1338 (void) printf("\t\tnext_clones_obj = %llu\n", 1339 (u_longlong_t)ds->ds_next_clones_obj); 1340 (void) printf("\t\tprops_obj = %llu\n", 1341 (u_longlong_t)ds->ds_props_obj); 1342 (void) printf("\t\tbp = %s\n", blkbuf); 1343} 1344 1345/* ARGSUSED */ 1346static int 1347dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1348{ 1349 char blkbuf[BP_SPRINTF_LEN]; 1350 1351 if (bp->blk_birth != 0) { 1352 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1353 (void) printf("\t%s\n", blkbuf); 1354 } 1355 return (0); 1356} 1357 1358static void 1359dump_bptree(objset_t *os, uint64_t obj, char *name) 1360{ 1361 char bytes[32]; 1362 bptree_phys_t *bt; 1363 dmu_buf_t *db; 1364 1365 if (dump_opt['d'] < 3) 1366 return; 1367 1368 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1369 bt = db->db_data; 1370 zdb_nicenum(bt->bt_bytes, bytes); 1371 (void) printf("\n %s: %llu datasets, %s\n", 1372 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1373 dmu_buf_rele(db, FTAG); 1374 1375 if (dump_opt['d'] < 5) 1376 return; 1377 1378 (void) printf("\n"); 1379 1380 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1381} 1382 1383/* ARGSUSED */ 1384static int 1385dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1386{ 1387 char blkbuf[BP_SPRINTF_LEN]; 1388 1389 ASSERT(bp->blk_birth != 0); 1390 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1391 (void) printf("\t%s\n", blkbuf); 1392 return (0); 1393} 1394 1395static void 1396dump_bpobj(bpobj_t *bpo, char *name, int indent) 1397{ 1398 char bytes[32]; 1399 char comp[32]; 1400 char uncomp[32]; 1401 1402 if (dump_opt['d'] < 3) 1403 return; 1404 1405 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1406 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1407 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1408 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1409 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1410 "%llu subobjs, %s (%s/%s comp)\n", 1411 indent * 8, name, 1412 (u_longlong_t)bpo->bpo_object, 1413 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1414 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1415 bytes, comp, uncomp); 1416 1417 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1418 uint64_t subobj; 1419 bpobj_t subbpo; 1420 int error; 1421 VERIFY0(dmu_read(bpo->bpo_os, 1422 bpo->bpo_phys->bpo_subobjs, 1423 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1424 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1425 if (error != 0) { 1426 (void) printf("ERROR %u while trying to open " 1427 "subobj id %llu\n", 1428 error, (u_longlong_t)subobj); 1429 continue; 1430 } 1431 dump_bpobj(&subbpo, "subobj", indent + 1); 1432 bpobj_close(&subbpo); 1433 } 1434 } else { 1435 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1436 indent * 8, name, 1437 (u_longlong_t)bpo->bpo_object, 1438 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1439 bytes); 1440 } 1441 1442 if (dump_opt['d'] < 5) 1443 return; 1444 1445 1446 if (indent == 0) { 1447 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1448 (void) printf("\n"); 1449 } 1450} 1451 1452static void 1453dump_deadlist(dsl_deadlist_t *dl) 1454{ 1455 dsl_deadlist_entry_t *dle; 1456 uint64_t unused; 1457 char bytes[32]; 1458 char comp[32]; 1459 char uncomp[32]; 1460 1461 if (dump_opt['d'] < 3) 1462 return; 1463 1464 if (dl->dl_oldfmt) { 1465 dump_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1466 return; 1467 } 1468 1469 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1470 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1471 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1472 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1473 bytes, comp, uncomp); 1474 1475 if (dump_opt['d'] < 4) 1476 return; 1477 1478 (void) printf("\n"); 1479 1480 /* force the tree to be loaded */ 1481 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1482 1483 for (dle = avl_first(&dl->dl_tree); dle; 1484 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1485 if (dump_opt['d'] >= 5) { 1486 char buf[128]; 1487 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1488 (longlong_t)dle->dle_mintxg, 1489 (longlong_t)dle->dle_bpobj.bpo_object); 1490 1491 dump_bpobj(&dle->dle_bpobj, buf, 0); 1492 } else { 1493 (void) printf("mintxg %llu -> obj %llu\n", 1494 (longlong_t)dle->dle_mintxg, 1495 (longlong_t)dle->dle_bpobj.bpo_object); 1496 1497 } 1498 } 1499} 1500 1501static avl_tree_t idx_tree; 1502static avl_tree_t domain_tree; 1503static boolean_t fuid_table_loaded; 1504static boolean_t sa_loaded; 1505sa_attr_type_t *sa_attr_table; 1506 1507static void 1508fuid_table_destroy() 1509{ 1510 if (fuid_table_loaded) { 1511 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1512 fuid_table_loaded = B_FALSE; 1513 } 1514} 1515 1516/* 1517 * print uid or gid information. 1518 * For normal POSIX id just the id is printed in decimal format. 1519 * For CIFS files with FUID the fuid is printed in hex followed by 1520 * the domain-rid string. 1521 */ 1522static void 1523print_idstr(uint64_t id, const char *id_type) 1524{ 1525 if (FUID_INDEX(id)) { 1526 char *domain; 1527 1528 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1529 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1530 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1531 } else { 1532 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1533 } 1534 1535} 1536 1537static void 1538dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1539{ 1540 uint32_t uid_idx, gid_idx; 1541 1542 uid_idx = FUID_INDEX(uid); 1543 gid_idx = FUID_INDEX(gid); 1544 1545 /* Load domain table, if not already loaded */ 1546 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1547 uint64_t fuid_obj; 1548 1549 /* first find the fuid object. It lives in the master node */ 1550 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1551 8, 1, &fuid_obj) == 0); 1552 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1553 (void) zfs_fuid_table_load(os, fuid_obj, 1554 &idx_tree, &domain_tree); 1555 fuid_table_loaded = B_TRUE; 1556 } 1557 1558 print_idstr(uid, "uid"); 1559 print_idstr(gid, "gid"); 1560} 1561 1562/*ARGSUSED*/ 1563static void 1564dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1565{ 1566 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1567 sa_handle_t *hdl; 1568 uint64_t xattr, rdev, gen; 1569 uint64_t uid, gid, mode, fsize, parent, links; 1570 uint64_t pflags; 1571 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1572 time_t z_crtime, z_atime, z_mtime, z_ctime; 1573 sa_bulk_attr_t bulk[12]; 1574 int idx = 0; 1575 int error; 1576 1577 if (!sa_loaded) { 1578 uint64_t sa_attrs = 0; 1579 uint64_t version; 1580 1581 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1582 8, 1, &version) == 0); 1583 if (version >= ZPL_VERSION_SA) { 1584 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1585 8, 1, &sa_attrs) == 0); 1586 } 1587 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1588 ZPL_END, &sa_attr_table)) != 0) { 1589 (void) printf("sa_setup failed errno %d, can't " 1590 "display znode contents\n", error); 1591 return; 1592 } 1593 sa_loaded = B_TRUE; 1594 } 1595 1596 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1597 (void) printf("Failed to get handle for SA znode\n"); 1598 return; 1599 } 1600 1601 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1602 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1603 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1604 &links, 8); 1605 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1606 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1607 &mode, 8); 1608 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1609 NULL, &parent, 8); 1610 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1611 &fsize, 8); 1612 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1613 acctm, 16); 1614 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1615 modtm, 16); 1616 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1617 crtm, 16); 1618 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1619 chgtm, 16); 1620 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1621 &pflags, 8); 1622 1623 if (sa_bulk_lookup(hdl, bulk, idx)) { 1624 (void) sa_handle_destroy(hdl); 1625 return; 1626 } 1627 1628 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1629 if (error != 0) { 1630 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1631 (u_longlong_t)object); 1632 } 1633 if (dump_opt['d'] < 3) { 1634 (void) printf("\t%s\n", path); 1635 (void) sa_handle_destroy(hdl); 1636 return; 1637 } 1638 1639 z_crtime = (time_t)crtm[0]; 1640 z_atime = (time_t)acctm[0]; 1641 z_mtime = (time_t)modtm[0]; 1642 z_ctime = (time_t)chgtm[0]; 1643 1644 (void) printf("\tpath %s\n", path); 1645 dump_uidgid(os, uid, gid); 1646 (void) printf("\tatime %s", ctime(&z_atime)); 1647 (void) printf("\tmtime %s", ctime(&z_mtime)); 1648 (void) printf("\tctime %s", ctime(&z_ctime)); 1649 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1650 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1651 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1652 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1653 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1654 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1655 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1656 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1657 sizeof (uint64_t)) == 0) 1658 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1659 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1660 sizeof (uint64_t)) == 0) 1661 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1662 sa_handle_destroy(hdl); 1663} 1664 1665/*ARGSUSED*/ 1666static void 1667dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1668{ 1669} 1670 1671/*ARGSUSED*/ 1672static void 1673dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1674{ 1675} 1676 1677static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1678 dump_none, /* unallocated */ 1679 dump_zap, /* object directory */ 1680 dump_uint64, /* object array */ 1681 dump_none, /* packed nvlist */ 1682 dump_packed_nvlist, /* packed nvlist size */ 1683 dump_none, /* bplist */ 1684 dump_none, /* bplist header */ 1685 dump_none, /* SPA space map header */ 1686 dump_none, /* SPA space map */ 1687 dump_none, /* ZIL intent log */ 1688 dump_dnode, /* DMU dnode */ 1689 dump_dmu_objset, /* DMU objset */ 1690 dump_dsl_dir, /* DSL directory */ 1691 dump_zap, /* DSL directory child map */ 1692 dump_zap, /* DSL dataset snap map */ 1693 dump_zap, /* DSL props */ 1694 dump_dsl_dataset, /* DSL dataset */ 1695 dump_znode, /* ZFS znode */ 1696 dump_acl, /* ZFS V0 ACL */ 1697 dump_uint8, /* ZFS plain file */ 1698 dump_zpldir, /* ZFS directory */ 1699 dump_zap, /* ZFS master node */ 1700 dump_zap, /* ZFS delete queue */ 1701 dump_uint8, /* zvol object */ 1702 dump_zap, /* zvol prop */ 1703 dump_uint8, /* other uint8[] */ 1704 dump_uint64, /* other uint64[] */ 1705 dump_zap, /* other ZAP */ 1706 dump_zap, /* persistent error log */ 1707 dump_uint8, /* SPA history */ 1708 dump_history_offsets, /* SPA history offsets */ 1709 dump_zap, /* Pool properties */ 1710 dump_zap, /* DSL permissions */ 1711 dump_acl, /* ZFS ACL */ 1712 dump_uint8, /* ZFS SYSACL */ 1713 dump_none, /* FUID nvlist */ 1714 dump_packed_nvlist, /* FUID nvlist size */ 1715 dump_zap, /* DSL dataset next clones */ 1716 dump_zap, /* DSL scrub queue */ 1717 dump_zap, /* ZFS user/group used */ 1718 dump_zap, /* ZFS user/group quota */ 1719 dump_zap, /* snapshot refcount tags */ 1720 dump_ddt_zap, /* DDT ZAP object */ 1721 dump_zap, /* DDT statistics */ 1722 dump_znode, /* SA object */ 1723 dump_zap, /* SA Master Node */ 1724 dump_sa_attrs, /* SA attribute registration */ 1725 dump_sa_layouts, /* SA attribute layouts */ 1726 dump_zap, /* DSL scrub translations */ 1727 dump_none, /* fake dedup BP */ 1728 dump_zap, /* deadlist */ 1729 dump_none, /* deadlist hdr */ 1730 dump_zap, /* dsl clones */ 1731 dump_none, /* bpobj subobjs */ 1732 dump_unknown, /* Unknown type, must be last */ 1733}; 1734 1735static void 1736dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1737{ 1738 dmu_buf_t *db = NULL; 1739 dmu_object_info_t doi; 1740 dnode_t *dn; 1741 void *bonus = NULL; 1742 size_t bsize = 0; 1743 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1744 char bonus_size[32]; 1745 char aux[50]; 1746 int error; 1747 1748 if (*print_header) { 1749 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1750 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1751 "%full", "type"); 1752 *print_header = 0; 1753 } 1754 1755 if (object == 0) { 1756 dn = DMU_META_DNODE(os); 1757 } else { 1758 error = dmu_bonus_hold(os, object, FTAG, &db); 1759 if (error) 1760 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1761 object, error); 1762 bonus = db->db_data; 1763 bsize = db->db_size; 1764 dn = DB_DNODE((dmu_buf_impl_t *)db); 1765 } 1766 dmu_object_info_from_dnode(dn, &doi); 1767 1768 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1769 zdb_nicenum(doi.doi_data_block_size, dblk); 1770 zdb_nicenum(doi.doi_max_offset, lsize); 1771 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1772 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1773 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1774 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1775 doi.doi_max_offset); 1776 1777 aux[0] = '\0'; 1778 1779 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1780 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1781 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1782 } 1783 1784 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1785 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1786 ZDB_COMPRESS_NAME(doi.doi_compress)); 1787 } 1788 1789 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1790 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1791 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1792 1793 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1794 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1795 "", "", "", "", "", bonus_size, "bonus", 1796 ZDB_OT_NAME(doi.doi_bonus_type)); 1797 } 1798 1799 if (verbosity >= 4) { 1800 (void) printf("\tdnode flags: %s%s%s\n", 1801 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1802 "USED_BYTES " : "", 1803 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1804 "USERUSED_ACCOUNTED " : "", 1805 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1806 "SPILL_BLKPTR" : ""); 1807 (void) printf("\tdnode maxblkid: %llu\n", 1808 (longlong_t)dn->dn_phys->dn_maxblkid); 1809 1810 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1811 bonus, bsize); 1812 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1813 *print_header = 1; 1814 } 1815 1816 if (verbosity >= 5) 1817 dump_indirect(dn); 1818 1819 if (verbosity >= 5) { 1820 /* 1821 * Report the list of segments that comprise the object. 1822 */ 1823 uint64_t start = 0; 1824 uint64_t end; 1825 uint64_t blkfill = 1; 1826 int minlvl = 1; 1827 1828 if (dn->dn_type == DMU_OT_DNODE) { 1829 minlvl = 0; 1830 blkfill = DNODES_PER_BLOCK; 1831 } 1832 1833 for (;;) { 1834 char segsize[32]; 1835 error = dnode_next_offset(dn, 1836 0, &start, minlvl, blkfill, 0); 1837 if (error) 1838 break; 1839 end = start; 1840 error = dnode_next_offset(dn, 1841 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1842 zdb_nicenum(end - start, segsize); 1843 (void) printf("\t\tsegment [%016llx, %016llx)" 1844 " size %5s\n", (u_longlong_t)start, 1845 (u_longlong_t)end, segsize); 1846 if (error) 1847 break; 1848 start = end; 1849 } 1850 } 1851 1852 if (db != NULL) 1853 dmu_buf_rele(db, FTAG); 1854} 1855 1856static char *objset_types[DMU_OST_NUMTYPES] = { 1857 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1858 1859static void 1860dump_dir(objset_t *os) 1861{ 1862 dmu_objset_stats_t dds; 1863 uint64_t object, object_count; 1864 uint64_t refdbytes, usedobjs, scratch; 1865 char numbuf[32]; 1866 char blkbuf[BP_SPRINTF_LEN + 20]; 1867 char osname[MAXNAMELEN]; 1868 char *type = "UNKNOWN"; 1869 int verbosity = dump_opt['d']; 1870 int print_header = 1; 1871 int i, error; 1872 1873 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1874 dmu_objset_fast_stat(os, &dds); 1875 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1876 1877 if (dds.dds_type < DMU_OST_NUMTYPES) 1878 type = objset_types[dds.dds_type]; 1879 1880 if (dds.dds_type == DMU_OST_META) { 1881 dds.dds_creation_txg = TXG_INITIAL; 1882 usedobjs = BP_GET_FILL(os->os_rootbp); 1883 refdbytes = os->os_spa->spa_dsl_pool-> 1884 dp_mos_dir->dd_phys->dd_used_bytes; 1885 } else { 1886 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1887 } 1888 1889 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1890 1891 zdb_nicenum(refdbytes, numbuf); 1892 1893 if (verbosity >= 4) { 1894 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1895 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1896 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1897 } else { 1898 blkbuf[0] = '\0'; 1899 } 1900 1901 dmu_objset_name(os, osname); 1902 1903 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1904 "%s, %llu objects%s\n", 1905 osname, type, (u_longlong_t)dmu_objset_id(os), 1906 (u_longlong_t)dds.dds_creation_txg, 1907 numbuf, (u_longlong_t)usedobjs, blkbuf); 1908 1909 if (zopt_objects != 0) { 1910 for (i = 0; i < zopt_objects; i++) 1911 dump_object(os, zopt_object[i], verbosity, 1912 &print_header); 1913 (void) printf("\n"); 1914 return; 1915 } 1916 1917 if (dump_opt['i'] != 0 || verbosity >= 2) 1918 dump_intent_log(dmu_objset_zil(os)); 1919 1920 if (dmu_objset_ds(os) != NULL) 1921 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1922 1923 if (verbosity < 2) 1924 return; 1925 1926 if (BP_IS_HOLE(os->os_rootbp)) 1927 return; 1928 1929 dump_object(os, 0, verbosity, &print_header); 1930 object_count = 0; 1931 if (DMU_USERUSED_DNODE(os) != NULL && 1932 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1933 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1934 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1935 } 1936 1937 object = 0; 1938 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1939 dump_object(os, object, verbosity, &print_header); 1940 object_count++; 1941 } 1942 1943 ASSERT3U(object_count, ==, usedobjs); 1944 1945 (void) printf("\n"); 1946 1947 if (error != ESRCH) { 1948 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1949 abort(); 1950 } 1951} 1952 1953static void 1954dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1955{ 1956 time_t timestamp = ub->ub_timestamp; 1957 1958 (void) printf(header ? header : ""); 1959 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1960 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1961 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1962 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1963 (void) printf("\ttimestamp = %llu UTC = %s", 1964 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1965 if (dump_opt['u'] >= 3) { 1966 char blkbuf[BP_SPRINTF_LEN]; 1967 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1968 (void) printf("\trootbp = %s\n", blkbuf); 1969 } 1970 (void) printf(footer ? footer : ""); 1971} 1972 1973static void 1974dump_config(spa_t *spa) 1975{ 1976 dmu_buf_t *db; 1977 size_t nvsize = 0; 1978 int error = 0; 1979 1980 1981 error = dmu_bonus_hold(spa->spa_meta_objset, 1982 spa->spa_config_object, FTAG, &db); 1983 1984 if (error == 0) { 1985 nvsize = *(uint64_t *)db->db_data; 1986 dmu_buf_rele(db, FTAG); 1987 1988 (void) printf("\nMOS Configuration:\n"); 1989 dump_packed_nvlist(spa->spa_meta_objset, 1990 spa->spa_config_object, (void *)&nvsize, 1); 1991 } else { 1992 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1993 (u_longlong_t)spa->spa_config_object, error); 1994 } 1995} 1996 1997static void 1998dump_cachefile(const char *cachefile) 1999{ 2000 int fd; 2001 struct stat64 statbuf; 2002 char *buf; 2003 nvlist_t *config; 2004 2005 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2006 (void) printf("cannot open '%s': %s\n", cachefile, 2007 strerror(errno)); 2008 exit(1); 2009 } 2010 2011 if (fstat64(fd, &statbuf) != 0) { 2012 (void) printf("failed to stat '%s': %s\n", cachefile, 2013 strerror(errno)); 2014 exit(1); 2015 } 2016 2017 if ((buf = malloc(statbuf.st_size)) == NULL) { 2018 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2019 (u_longlong_t)statbuf.st_size); 2020 exit(1); 2021 } 2022 2023 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2024 (void) fprintf(stderr, "failed to read %llu bytes\n", 2025 (u_longlong_t)statbuf.st_size); 2026 exit(1); 2027 } 2028 2029 (void) close(fd); 2030 2031 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2032 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2033 exit(1); 2034 } 2035 2036 free(buf); 2037 2038 dump_nvlist(config, 0); 2039 2040 nvlist_free(config); 2041} 2042 2043#define ZDB_MAX_UB_HEADER_SIZE 32 2044 2045static void 2046dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2047{ 2048 vdev_t vd; 2049 vdev_t *vdp = &vd; 2050 char header[ZDB_MAX_UB_HEADER_SIZE]; 2051 2052 vd.vdev_ashift = ashift; 2053 vdp->vdev_top = vdp; 2054 2055 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2056 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2057 uberblock_t *ub = (void *)((char *)lbl + uoff); 2058 2059 if (uberblock_verify(ub)) 2060 continue; 2061 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2062 "Uberblock[%d]\n", i); 2063 dump_uberblock(ub, header, ""); 2064 } 2065} 2066 2067static void 2068dump_label(const char *dev) 2069{ 2070 int fd; 2071 vdev_label_t label; 2072 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2073 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2074 struct stat64 statbuf; 2075 uint64_t psize, ashift; 2076 int len = strlen(dev) + 1; 2077 2078 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2079 len++; 2080 path = malloc(len); 2081 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2082 } else { 2083 path = strdup(dev); 2084 } 2085 2086 if ((fd = open64(path, O_RDONLY)) < 0) { 2087 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2088 free(path); 2089 exit(1); 2090 } 2091 2092 if (fstat64(fd, &statbuf) != 0) { 2093 (void) printf("failed to stat '%s': %s\n", path, 2094 strerror(errno)); 2095 free(path); 2096 (void) close(fd); 2097 exit(1); 2098 } 2099 2100 if (S_ISBLK(statbuf.st_mode)) { 2101 (void) printf("cannot use '%s': character device required\n", 2102 path); 2103 free(path); 2104 (void) close(fd); 2105 exit(1); 2106 } 2107 2108 psize = statbuf.st_size; 2109 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2110 2111 for (int l = 0; l < VDEV_LABELS; l++) { 2112 nvlist_t *config = NULL; 2113 2114 (void) printf("--------------------------------------------\n"); 2115 (void) printf("LABEL %d\n", l); 2116 (void) printf("--------------------------------------------\n"); 2117 2118 if (pread64(fd, &label, sizeof (label), 2119 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2120 (void) printf("failed to read label %d\n", l); 2121 continue; 2122 } 2123 2124 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2125 (void) printf("failed to unpack label %d\n", l); 2126 ashift = SPA_MINBLOCKSHIFT; 2127 } else { 2128 nvlist_t *vdev_tree = NULL; 2129 2130 dump_nvlist(config, 4); 2131 if ((nvlist_lookup_nvlist(config, 2132 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2133 (nvlist_lookup_uint64(vdev_tree, 2134 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2135 ashift = SPA_MINBLOCKSHIFT; 2136 nvlist_free(config); 2137 } 2138 if (dump_opt['u']) 2139 dump_label_uberblocks(&label, ashift); 2140 } 2141 2142 free(path); 2143 (void) close(fd); 2144} 2145 2146/*ARGSUSED*/ 2147static int 2148dump_one_dir(const char *dsname, void *arg) 2149{ 2150 int error; 2151 objset_t *os; 2152 2153 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2154 if (error) { 2155 (void) printf("Could not open %s, error %d\n", dsname, error); 2156 return (0); 2157 } 2158 dump_dir(os); 2159 dmu_objset_disown(os, FTAG); 2160 fuid_table_destroy(); 2161 sa_loaded = B_FALSE; 2162 return (0); 2163} 2164 2165/* 2166 * Block statistics. 2167 */ 2168#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2169typedef struct zdb_blkstats { 2170 uint64_t zb_asize; 2171 uint64_t zb_lsize; 2172 uint64_t zb_psize; 2173 uint64_t zb_count; 2174 uint64_t zb_gangs; 2175 uint64_t zb_ditto_samevdev; 2176 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2177} zdb_blkstats_t; 2178 2179/* 2180 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2181 */ 2182#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2183#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2184#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2185#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2186 2187static char *zdb_ot_extname[] = { 2188 "deferred free", 2189 "dedup ditto", 2190 "other", 2191 "Total", 2192}; 2193 2194#define ZB_TOTAL DN_MAX_LEVELS 2195 2196typedef struct zdb_cb { 2197 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2198 uint64_t zcb_dedup_asize; 2199 uint64_t zcb_dedup_blocks; 2200 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2201 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2202 [BPE_PAYLOAD_SIZE]; 2203 uint64_t zcb_start; 2204 uint64_t zcb_lastprint; 2205 uint64_t zcb_totalasize; 2206 uint64_t zcb_errors[256]; 2207 int zcb_readfails; 2208 int zcb_haderrors; 2209 spa_t *zcb_spa; 2210} zdb_cb_t; 2211 2212static void 2213zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2214 dmu_object_type_t type) 2215{ 2216 uint64_t refcnt = 0; 2217 2218 ASSERT(type < ZDB_OT_TOTAL); 2219 2220 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2221 return; 2222 2223 for (int i = 0; i < 4; i++) { 2224 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2225 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2226 int equal; 2227 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2228 2229 zb->zb_asize += BP_GET_ASIZE(bp); 2230 zb->zb_lsize += BP_GET_LSIZE(bp); 2231 zb->zb_psize += BP_GET_PSIZE(bp); 2232 zb->zb_count++; 2233 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2234 2235 zb->zb_gangs += BP_COUNT_GANG(bp); 2236 2237 switch (BP_GET_NDVAS(bp)) { 2238 case 2: 2239 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2240 DVA_GET_VDEV(&bp->blk_dva[1])) 2241 zb->zb_ditto_samevdev++; 2242 break; 2243 case 3: 2244 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2245 DVA_GET_VDEV(&bp->blk_dva[1])) + 2246 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2247 DVA_GET_VDEV(&bp->blk_dva[2])) + 2248 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2249 DVA_GET_VDEV(&bp->blk_dva[2])); 2250 if (equal != 0) 2251 zb->zb_ditto_samevdev++; 2252 break; 2253 } 2254 2255 } 2256 2257 if (BP_IS_EMBEDDED(bp)) { 2258 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2259 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2260 [BPE_GET_PSIZE(bp)]++; 2261 return; 2262 } 2263 2264 if (dump_opt['L']) 2265 return; 2266 2267 if (BP_GET_DEDUP(bp)) { 2268 ddt_t *ddt; 2269 ddt_entry_t *dde; 2270 2271 ddt = ddt_select(zcb->zcb_spa, bp); 2272 ddt_enter(ddt); 2273 dde = ddt_lookup(ddt, bp, B_FALSE); 2274 2275 if (dde == NULL) { 2276 refcnt = 0; 2277 } else { 2278 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2279 ddt_phys_decref(ddp); 2280 refcnt = ddp->ddp_refcnt; 2281 if (ddt_phys_total_refcnt(dde) == 0) 2282 ddt_remove(ddt, dde); 2283 } 2284 ddt_exit(ddt); 2285 } 2286 2287 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2288 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2289 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2290} 2291 2292/* ARGSUSED */ 2293static void 2294zdb_blkptr_done(zio_t *zio) 2295{ 2296 spa_t *spa = zio->io_spa; 2297 blkptr_t *bp = zio->io_bp; 2298 int ioerr = zio->io_error; 2299 zdb_cb_t *zcb = zio->io_private; 2300 zbookmark_phys_t *zb = &zio->io_bookmark; 2301 2302 zio_data_buf_free(zio->io_data, zio->io_size); 2303 2304 mutex_enter(&spa->spa_scrub_lock); 2305 spa->spa_scrub_inflight--; 2306 cv_broadcast(&spa->spa_scrub_io_cv); 2307 2308 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2309 char blkbuf[BP_SPRINTF_LEN]; 2310 2311 zcb->zcb_haderrors = 1; 2312 zcb->zcb_errors[ioerr]++; 2313 2314 if (dump_opt['b'] >= 2) 2315 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2316 else 2317 blkbuf[0] = '\0'; 2318 2319 (void) printf("zdb_blkptr_cb: " 2320 "Got error %d reading " 2321 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2322 ioerr, 2323 (u_longlong_t)zb->zb_objset, 2324 (u_longlong_t)zb->zb_object, 2325 (u_longlong_t)zb->zb_level, 2326 (u_longlong_t)zb->zb_blkid, 2327 blkbuf); 2328 } 2329 mutex_exit(&spa->spa_scrub_lock); 2330} 2331 2332/* ARGSUSED */ 2333static int 2334zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2335 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2336{ 2337 zdb_cb_t *zcb = arg; 2338 dmu_object_type_t type; 2339 boolean_t is_metadata; 2340 2341 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2342 char blkbuf[BP_SPRINTF_LEN]; 2343 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2344 (void) printf("objset %llu object %llu " 2345 "level %lld offset 0x%llx %s\n", 2346 (u_longlong_t)zb->zb_objset, 2347 (u_longlong_t)zb->zb_object, 2348 (longlong_t)zb->zb_level, 2349 (u_longlong_t)blkid2offset(dnp, bp, zb), 2350 blkbuf); 2351 } 2352 2353 if (BP_IS_HOLE(bp)) 2354 return (0); 2355 2356 type = BP_GET_TYPE(bp); 2357 2358 zdb_count_block(zcb, zilog, bp, 2359 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2360 2361 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2362 2363 if (!BP_IS_EMBEDDED(bp) && 2364 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2365 size_t size = BP_GET_PSIZE(bp); 2366 void *data = zio_data_buf_alloc(size); 2367 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2368 2369 /* If it's an intent log block, failure is expected. */ 2370 if (zb->zb_level == ZB_ZIL_LEVEL) 2371 flags |= ZIO_FLAG_SPECULATIVE; 2372 2373 mutex_enter(&spa->spa_scrub_lock); 2374 while (spa->spa_scrub_inflight > max_inflight) 2375 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2376 spa->spa_scrub_inflight++; 2377 mutex_exit(&spa->spa_scrub_lock); 2378 2379 zio_nowait(zio_read(NULL, spa, bp, data, size, 2380 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2381 } 2382 2383 zcb->zcb_readfails = 0; 2384 2385 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2386 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2387 uint64_t now = gethrtime(); 2388 char buf[10]; 2389 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2390 int kb_per_sec = 2391 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2392 int sec_remaining = 2393 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2394 2395 zfs_nicenum(bytes, buf, sizeof (buf)); 2396 (void) fprintf(stderr, 2397 "\r%5s completed (%4dMB/s) " 2398 "estimated time remaining: %uhr %02umin %02usec ", 2399 buf, kb_per_sec / 1024, 2400 sec_remaining / 60 / 60, 2401 sec_remaining / 60 % 60, 2402 sec_remaining % 60); 2403 2404 zcb->zcb_lastprint = now; 2405 } 2406 2407 return (0); 2408} 2409 2410static void 2411zdb_leak(void *arg, uint64_t start, uint64_t size) 2412{ 2413 vdev_t *vd = arg; 2414 2415 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2416 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2417} 2418 2419static metaslab_ops_t zdb_metaslab_ops = { 2420 NULL /* alloc */ 2421}; 2422 2423static void 2424zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2425{ 2426 ddt_bookmark_t ddb = { 0 }; 2427 ddt_entry_t dde; 2428 int error; 2429 2430 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2431 blkptr_t blk; 2432 ddt_phys_t *ddp = dde.dde_phys; 2433 2434 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2435 return; 2436 2437 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2438 2439 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2440 if (ddp->ddp_phys_birth == 0) 2441 continue; 2442 ddt_bp_create(ddb.ddb_checksum, 2443 &dde.dde_key, ddp, &blk); 2444 if (p == DDT_PHYS_DITTO) { 2445 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2446 } else { 2447 zcb->zcb_dedup_asize += 2448 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2449 zcb->zcb_dedup_blocks++; 2450 } 2451 } 2452 if (!dump_opt['L']) { 2453 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2454 ddt_enter(ddt); 2455 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2456 ddt_exit(ddt); 2457 } 2458 } 2459 2460 ASSERT(error == ENOENT); 2461} 2462 2463static void 2464zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2465{ 2466 zcb->zcb_spa = spa; 2467 2468 if (!dump_opt['L']) { 2469 vdev_t *rvd = spa->spa_root_vdev; 2470 for (int c = 0; c < rvd->vdev_children; c++) { 2471 vdev_t *vd = rvd->vdev_child[c]; 2472 for (int m = 0; m < vd->vdev_ms_count; m++) { 2473 metaslab_t *msp = vd->vdev_ms[m]; 2474 mutex_enter(&msp->ms_lock); 2475 metaslab_unload(msp); 2476 2477 /* 2478 * For leak detection, we overload the metaslab 2479 * ms_tree to contain allocated segments 2480 * instead of free segments. As a result, 2481 * we can't use the normal metaslab_load/unload 2482 * interfaces. 2483 */ 2484 if (msp->ms_sm != NULL) { 2485 msp->ms_ops = &zdb_metaslab_ops; 2486 VERIFY0(space_map_load(msp->ms_sm, 2487 msp->ms_tree, SM_ALLOC)); 2488 msp->ms_loaded = B_TRUE; 2489 } 2490 mutex_exit(&msp->ms_lock); 2491 } 2492 } 2493 } 2494 2495 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2496 2497 zdb_ddt_leak_init(spa, zcb); 2498 2499 spa_config_exit(spa, SCL_CONFIG, FTAG); 2500} 2501 2502static void 2503zdb_leak_fini(spa_t *spa) 2504{ 2505 if (!dump_opt['L']) { 2506 vdev_t *rvd = spa->spa_root_vdev; 2507 for (int c = 0; c < rvd->vdev_children; c++) { 2508 vdev_t *vd = rvd->vdev_child[c]; 2509 for (int m = 0; m < vd->vdev_ms_count; m++) { 2510 metaslab_t *msp = vd->vdev_ms[m]; 2511 mutex_enter(&msp->ms_lock); 2512 2513 /* 2514 * The ms_tree has been overloaded to 2515 * contain allocated segments. Now that we 2516 * finished traversing all blocks, any 2517 * block that remains in the ms_tree 2518 * represents an allocated block that we 2519 * did not claim during the traversal. 2520 * Claimed blocks would have been removed 2521 * from the ms_tree. 2522 */ 2523 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2524 msp->ms_loaded = B_FALSE; 2525 2526 mutex_exit(&msp->ms_lock); 2527 } 2528 } 2529 } 2530} 2531 2532/* ARGSUSED */ 2533static int 2534count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2535{ 2536 zdb_cb_t *zcb = arg; 2537 2538 if (dump_opt['b'] >= 5) { 2539 char blkbuf[BP_SPRINTF_LEN]; 2540 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2541 (void) printf("[%s] %s\n", 2542 "deferred free", blkbuf); 2543 } 2544 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2545 return (0); 2546} 2547 2548static int 2549dump_block_stats(spa_t *spa) 2550{ 2551 zdb_cb_t zcb = { 0 }; 2552 zdb_blkstats_t *zb, *tzb; 2553 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2554 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2555 boolean_t leaks = B_FALSE; 2556 2557 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2558 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2559 (dump_opt['c'] == 1) ? "metadata " : "", 2560 dump_opt['c'] ? "checksums " : "", 2561 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2562 !dump_opt['L'] ? "nothing leaked " : ""); 2563 2564 /* 2565 * Load all space maps as SM_ALLOC maps, then traverse the pool 2566 * claiming each block we discover. If the pool is perfectly 2567 * consistent, the space maps will be empty when we're done. 2568 * Anything left over is a leak; any block we can't claim (because 2569 * it's not part of any space map) is a double allocation, 2570 * reference to a freed block, or an unclaimed log block. 2571 */ 2572 zdb_leak_init(spa, &zcb); 2573 2574 /* 2575 * If there's a deferred-free bplist, process that first. 2576 */ 2577 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2578 count_block_cb, &zcb, NULL); 2579 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2580 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2581 count_block_cb, &zcb, NULL); 2582 } 2583 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2584 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2585 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2586 &zcb, NULL)); 2587 } 2588 2589 if (dump_opt['c'] > 1) 2590 flags |= TRAVERSE_PREFETCH_DATA; 2591 2592 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2593 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2594 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2595 2596 /* 2597 * If we've traversed the data blocks then we need to wait for those 2598 * I/Os to complete. We leverage "The Godfather" zio to wait on 2599 * all async I/Os to complete. 2600 */ 2601 if (dump_opt['c']) { 2602 for (int i = 0; i < max_ncpus; i++) { 2603 (void) zio_wait(spa->spa_async_zio_root[i]); 2604 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2605 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2606 ZIO_FLAG_GODFATHER); 2607 } 2608 } 2609 2610 if (zcb.zcb_haderrors) { 2611 (void) printf("\nError counts:\n\n"); 2612 (void) printf("\t%5s %s\n", "errno", "count"); 2613 for (int e = 0; e < 256; e++) { 2614 if (zcb.zcb_errors[e] != 0) { 2615 (void) printf("\t%5d %llu\n", 2616 e, (u_longlong_t)zcb.zcb_errors[e]); 2617 } 2618 } 2619 } 2620 2621 /* 2622 * Report any leaked segments. 2623 */ 2624 zdb_leak_fini(spa); 2625 2626 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2627 2628 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2629 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2630 2631 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2632 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2633 2634 if (total_found == total_alloc) { 2635 if (!dump_opt['L']) 2636 (void) printf("\n\tNo leaks (block sum matches space" 2637 " maps exactly)\n"); 2638 } else { 2639 (void) printf("block traversal size %llu != alloc %llu " 2640 "(%s %lld)\n", 2641 (u_longlong_t)total_found, 2642 (u_longlong_t)total_alloc, 2643 (dump_opt['L']) ? "unreachable" : "leaked", 2644 (longlong_t)(total_alloc - total_found)); 2645 leaks = B_TRUE; 2646 } 2647 2648 if (tzb->zb_count == 0) 2649 return (2); 2650 2651 (void) printf("\n"); 2652 (void) printf("\tbp count: %10llu\n", 2653 (u_longlong_t)tzb->zb_count); 2654 (void) printf("\tganged count: %10llu\n", 2655 (longlong_t)tzb->zb_gangs); 2656 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2657 (u_longlong_t)tzb->zb_lsize, 2658 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2659 (void) printf("\tbp physical: %10llu avg:" 2660 " %6llu compression: %6.2f\n", 2661 (u_longlong_t)tzb->zb_psize, 2662 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2663 (double)tzb->zb_lsize / tzb->zb_psize); 2664 (void) printf("\tbp allocated: %10llu avg:" 2665 " %6llu compression: %6.2f\n", 2666 (u_longlong_t)tzb->zb_asize, 2667 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2668 (double)tzb->zb_lsize / tzb->zb_asize); 2669 (void) printf("\tbp deduped: %10llu ref>1:" 2670 " %6llu deduplication: %6.2f\n", 2671 (u_longlong_t)zcb.zcb_dedup_asize, 2672 (u_longlong_t)zcb.zcb_dedup_blocks, 2673 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2674 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2675 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2676 2677 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2678 if (zcb.zcb_embedded_blocks[i] == 0) 2679 continue; 2680 (void) printf("\n"); 2681 (void) printf("\tadditional, non-pointer bps of type %u: " 2682 "%10llu\n", 2683 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2684 2685 if (dump_opt['b'] >= 3) { 2686 (void) printf("\t number of (compressed) bytes: " 2687 "number of bps\n"); 2688 dump_histogram(zcb.zcb_embedded_histogram[i], 2689 sizeof (zcb.zcb_embedded_histogram[i]) / 2690 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2691 } 2692 } 2693 2694 if (tzb->zb_ditto_samevdev != 0) { 2695 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2696 (longlong_t)tzb->zb_ditto_samevdev); 2697 } 2698 2699 if (dump_opt['b'] >= 2) { 2700 int l, t, level; 2701 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2702 "\t avg\t comp\t%%Total\tType\n"); 2703 2704 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2705 char csize[32], lsize[32], psize[32], asize[32]; 2706 char avg[32], gang[32]; 2707 char *typename; 2708 2709 if (t < DMU_OT_NUMTYPES) 2710 typename = dmu_ot[t].ot_name; 2711 else 2712 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2713 2714 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2715 (void) printf("%6s\t%5s\t%5s\t%5s" 2716 "\t%5s\t%5s\t%6s\t%s\n", 2717 "-", 2718 "-", 2719 "-", 2720 "-", 2721 "-", 2722 "-", 2723 "-", 2724 typename); 2725 continue; 2726 } 2727 2728 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2729 level = (l == -1 ? ZB_TOTAL : l); 2730 zb = &zcb.zcb_type[level][t]; 2731 2732 if (zb->zb_asize == 0) 2733 continue; 2734 2735 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2736 continue; 2737 2738 if (level == 0 && zb->zb_asize == 2739 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2740 continue; 2741 2742 zdb_nicenum(zb->zb_count, csize); 2743 zdb_nicenum(zb->zb_lsize, lsize); 2744 zdb_nicenum(zb->zb_psize, psize); 2745 zdb_nicenum(zb->zb_asize, asize); 2746 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2747 zdb_nicenum(zb->zb_gangs, gang); 2748 2749 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2750 "\t%5.2f\t%6.2f\t", 2751 csize, lsize, psize, asize, avg, 2752 (double)zb->zb_lsize / zb->zb_psize, 2753 100.0 * zb->zb_asize / tzb->zb_asize); 2754 2755 if (level == ZB_TOTAL) 2756 (void) printf("%s\n", typename); 2757 else 2758 (void) printf(" L%d %s\n", 2759 level, typename); 2760 2761 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2762 (void) printf("\t number of ganged " 2763 "blocks: %s\n", gang); 2764 } 2765 2766 if (dump_opt['b'] >= 4) { 2767 (void) printf("psize " 2768 "(in 512-byte sectors): " 2769 "number of blocks\n"); 2770 dump_histogram(zb->zb_psize_histogram, 2771 PSIZE_HISTO_SIZE, 0); 2772 } 2773 } 2774 } 2775 } 2776 2777 (void) printf("\n"); 2778 2779 if (leaks) 2780 return (2); 2781 2782 if (zcb.zcb_haderrors) 2783 return (3); 2784 2785 return (0); 2786} 2787 2788typedef struct zdb_ddt_entry { 2789 ddt_key_t zdde_key; 2790 uint64_t zdde_ref_blocks; 2791 uint64_t zdde_ref_lsize; 2792 uint64_t zdde_ref_psize; 2793 uint64_t zdde_ref_dsize; 2794 avl_node_t zdde_node; 2795} zdb_ddt_entry_t; 2796 2797/* ARGSUSED */ 2798static int 2799zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2800 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2801{ 2802 avl_tree_t *t = arg; 2803 avl_index_t where; 2804 zdb_ddt_entry_t *zdde, zdde_search; 2805 2806 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2807 return (0); 2808 2809 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2810 (void) printf("traversing objset %llu, %llu objects, " 2811 "%lu blocks so far\n", 2812 (u_longlong_t)zb->zb_objset, 2813 (u_longlong_t)BP_GET_FILL(bp), 2814 avl_numnodes(t)); 2815 } 2816 2817 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2818 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2819 return (0); 2820 2821 ddt_key_fill(&zdde_search.zdde_key, bp); 2822 2823 zdde = avl_find(t, &zdde_search, &where); 2824 2825 if (zdde == NULL) { 2826 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2827 zdde->zdde_key = zdde_search.zdde_key; 2828 avl_insert(t, zdde, where); 2829 } 2830 2831 zdde->zdde_ref_blocks += 1; 2832 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2833 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2834 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2835 2836 return (0); 2837} 2838 2839static void 2840dump_simulated_ddt(spa_t *spa) 2841{ 2842 avl_tree_t t; 2843 void *cookie = NULL; 2844 zdb_ddt_entry_t *zdde; 2845 ddt_histogram_t ddh_total = { 0 }; 2846 ddt_stat_t dds_total = { 0 }; 2847 2848 avl_create(&t, ddt_entry_compare, 2849 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2850 2851 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2852 2853 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2854 zdb_ddt_add_cb, &t); 2855 2856 spa_config_exit(spa, SCL_CONFIG, FTAG); 2857 2858 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2859 ddt_stat_t dds; 2860 uint64_t refcnt = zdde->zdde_ref_blocks; 2861 ASSERT(refcnt != 0); 2862 2863 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2864 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2865 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2866 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2867 2868 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2869 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2870 dds.dds_ref_psize = zdde->zdde_ref_psize; 2871 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2872 2873 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2874 &dds, 0); 2875 2876 umem_free(zdde, sizeof (*zdde)); 2877 } 2878 2879 avl_destroy(&t); 2880 2881 ddt_histogram_stat(&dds_total, &ddh_total); 2882 2883 (void) printf("Simulated DDT histogram:\n"); 2884 2885 zpool_dump_ddt(&dds_total, &ddh_total); 2886 2887 dump_dedup_ratio(&dds_total); 2888} 2889 2890static void 2891dump_zpool(spa_t *spa) 2892{ 2893 dsl_pool_t *dp = spa_get_dsl(spa); 2894 int rc = 0; 2895 2896 if (dump_opt['S']) { 2897 dump_simulated_ddt(spa); 2898 return; 2899 } 2900 2901 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2902 (void) printf("\nCached configuration:\n"); 2903 dump_nvlist(spa->spa_config, 8); 2904 } 2905 2906 if (dump_opt['C']) 2907 dump_config(spa); 2908 2909 if (dump_opt['u']) 2910 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2911 2912 if (dump_opt['D']) 2913 dump_all_ddts(spa); 2914 2915 if (dump_opt['d'] > 2 || dump_opt['m']) 2916 dump_metaslabs(spa); 2917 if (dump_opt['M']) 2918 dump_metaslab_groups(spa); 2919 2920 if (dump_opt['d'] || dump_opt['i']) { 2921 dump_dir(dp->dp_meta_objset); 2922 if (dump_opt['d'] >= 3) { 2923 dump_bpobj(&spa->spa_deferred_bpobj, 2924 "Deferred frees", 0); 2925 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2926 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2927 "Pool snapshot frees", 0); 2928 } 2929 2930 if (spa_feature_is_active(spa, 2931 SPA_FEATURE_ASYNC_DESTROY)) { 2932 dump_bptree(spa->spa_meta_objset, 2933 spa->spa_dsl_pool->dp_bptree_obj, 2934 "Pool dataset frees"); 2935 } 2936 dump_dtl(spa->spa_root_vdev, 0); 2937 } 2938 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2939 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2940 } 2941 if (dump_opt['b'] || dump_opt['c']) 2942 rc = dump_block_stats(spa); 2943 2944 if (rc == 0) 2945 rc = verify_spacemap_refcounts(spa); 2946 2947 if (dump_opt['s']) 2948 show_pool_stats(spa); 2949 2950 if (dump_opt['h']) 2951 dump_history(spa); 2952 2953 if (rc != 0) 2954 exit(rc); 2955} 2956 2957#define ZDB_FLAG_CHECKSUM 0x0001 2958#define ZDB_FLAG_DECOMPRESS 0x0002 2959#define ZDB_FLAG_BSWAP 0x0004 2960#define ZDB_FLAG_GBH 0x0008 2961#define ZDB_FLAG_INDIRECT 0x0010 2962#define ZDB_FLAG_PHYS 0x0020 2963#define ZDB_FLAG_RAW 0x0040 2964#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2965 2966int flagbits[256]; 2967 2968static void 2969zdb_print_blkptr(blkptr_t *bp, int flags) 2970{ 2971 char blkbuf[BP_SPRINTF_LEN]; 2972 2973 if (flags & ZDB_FLAG_BSWAP) 2974 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2975 2976 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2977 (void) printf("%s\n", blkbuf); 2978} 2979 2980static void 2981zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2982{ 2983 int i; 2984 2985 for (i = 0; i < nbps; i++) 2986 zdb_print_blkptr(&bp[i], flags); 2987} 2988 2989static void 2990zdb_dump_gbh(void *buf, int flags) 2991{ 2992 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2993} 2994 2995static void 2996zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2997{ 2998 if (flags & ZDB_FLAG_BSWAP) 2999 byteswap_uint64_array(buf, size); 3000 (void) write(1, buf, size); 3001} 3002 3003static void 3004zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3005{ 3006 uint64_t *d = (uint64_t *)buf; 3007 int nwords = size / sizeof (uint64_t); 3008 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3009 int i, j; 3010 char *hdr, *c; 3011 3012 3013 if (do_bswap) 3014 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3015 else 3016 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3017 3018 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3019 3020 for (i = 0; i < nwords; i += 2) { 3021 (void) printf("%06llx: %016llx %016llx ", 3022 (u_longlong_t)(i * sizeof (uint64_t)), 3023 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3024 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3025 3026 c = (char *)&d[i]; 3027 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3028 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3029 (void) printf("\n"); 3030 } 3031} 3032 3033/* 3034 * There are two acceptable formats: 3035 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3036 * child[.child]* - For example: 0.1.1 3037 * 3038 * The second form can be used to specify arbitrary vdevs anywhere 3039 * in the heirarchy. For example, in a pool with a mirror of 3040 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3041 */ 3042static vdev_t * 3043zdb_vdev_lookup(vdev_t *vdev, char *path) 3044{ 3045 char *s, *p, *q; 3046 int i; 3047 3048 if (vdev == NULL) 3049 return (NULL); 3050 3051 /* First, assume the x.x.x.x format */ 3052 i = (int)strtoul(path, &s, 10); 3053 if (s == path || (s && *s != '.' && *s != '\0')) 3054 goto name; 3055 if (i < 0 || i >= vdev->vdev_children) 3056 return (NULL); 3057 3058 vdev = vdev->vdev_child[i]; 3059 if (*s == '\0') 3060 return (vdev); 3061 return (zdb_vdev_lookup(vdev, s+1)); 3062 3063name: 3064 for (i = 0; i < vdev->vdev_children; i++) { 3065 vdev_t *vc = vdev->vdev_child[i]; 3066 3067 if (vc->vdev_path == NULL) { 3068 vc = zdb_vdev_lookup(vc, path); 3069 if (vc == NULL) 3070 continue; 3071 else 3072 return (vc); 3073 } 3074 3075 p = strrchr(vc->vdev_path, '/'); 3076 p = p ? p + 1 : vc->vdev_path; 3077 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3078 3079 if (strcmp(vc->vdev_path, path) == 0) 3080 return (vc); 3081 if (strcmp(p, path) == 0) 3082 return (vc); 3083 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3084 return (vc); 3085 } 3086 3087 return (NULL); 3088} 3089 3090/* 3091 * Read a block from a pool and print it out. The syntax of the 3092 * block descriptor is: 3093 * 3094 * pool:vdev_specifier:offset:size[:flags] 3095 * 3096 * pool - The name of the pool you wish to read from 3097 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3098 * offset - offset, in hex, in bytes 3099 * size - Amount of data to read, in hex, in bytes 3100 * flags - A string of characters specifying options 3101 * b: Decode a blkptr at given offset within block 3102 * *c: Calculate and display checksums 3103 * d: Decompress data before dumping 3104 * e: Byteswap data before dumping 3105 * g: Display data as a gang block header 3106 * i: Display as an indirect block 3107 * p: Do I/O to physical offset 3108 * r: Dump raw data to stdout 3109 * 3110 * * = not yet implemented 3111 */ 3112static void 3113zdb_read_block(char *thing, spa_t *spa) 3114{ 3115 blkptr_t blk, *bp = &blk; 3116 dva_t *dva = bp->blk_dva; 3117 int flags = 0; 3118 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3119 zio_t *zio; 3120 vdev_t *vd; 3121 void *pbuf, *lbuf, *buf; 3122 char *s, *p, *dup, *vdev, *flagstr; 3123 int i, error; 3124 3125 dup = strdup(thing); 3126 s = strtok(dup, ":"); 3127 vdev = s ? s : ""; 3128 s = strtok(NULL, ":"); 3129 offset = strtoull(s ? s : "", NULL, 16); 3130 s = strtok(NULL, ":"); 3131 size = strtoull(s ? s : "", NULL, 16); 3132 s = strtok(NULL, ":"); 3133 flagstr = s ? s : ""; 3134 3135 s = NULL; 3136 if (size == 0) 3137 s = "size must not be zero"; 3138 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3139 s = "size must be a multiple of sector size"; 3140 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3141 s = "offset must be a multiple of sector size"; 3142 if (s) { 3143 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3144 free(dup); 3145 return; 3146 } 3147 3148 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3149 for (i = 0; flagstr[i]; i++) { 3150 int bit = flagbits[(uchar_t)flagstr[i]]; 3151 3152 if (bit == 0) { 3153 (void) printf("***Invalid flag: %c\n", 3154 flagstr[i]); 3155 continue; 3156 } 3157 flags |= bit; 3158 3159 /* If it's not something with an argument, keep going */ 3160 if ((bit & (ZDB_FLAG_CHECKSUM | 3161 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3162 continue; 3163 3164 p = &flagstr[i + 1]; 3165 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3166 blkptr_offset = strtoull(p, &p, 16); 3167 if (*p != ':' && *p != '\0') { 3168 (void) printf("***Invalid flag arg: '%s'\n", s); 3169 free(dup); 3170 return; 3171 } 3172 i += p - &flagstr[i + 1]; /* skip over the number */ 3173 } 3174 } 3175 3176 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3177 if (vd == NULL) { 3178 (void) printf("***Invalid vdev: %s\n", vdev); 3179 free(dup); 3180 return; 3181 } else { 3182 if (vd->vdev_path) 3183 (void) fprintf(stderr, "Found vdev: %s\n", 3184 vd->vdev_path); 3185 else 3186 (void) fprintf(stderr, "Found vdev type: %s\n", 3187 vd->vdev_ops->vdev_op_type); 3188 } 3189 3190 psize = size; 3191 lsize = size; 3192 3193 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3194 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3195 3196 BP_ZERO(bp); 3197 3198 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3199 DVA_SET_OFFSET(&dva[0], offset); 3200 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3201 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3202 3203 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3204 3205 BP_SET_LSIZE(bp, lsize); 3206 BP_SET_PSIZE(bp, psize); 3207 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3208 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3209 BP_SET_TYPE(bp, DMU_OT_NONE); 3210 BP_SET_LEVEL(bp, 0); 3211 BP_SET_DEDUP(bp, 0); 3212 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3213 3214 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3215 zio = zio_root(spa, NULL, NULL, 0); 3216 3217 if (vd == vd->vdev_top) { 3218 /* 3219 * Treat this as a normal block read. 3220 */ 3221 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3222 ZIO_PRIORITY_SYNC_READ, 3223 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3224 } else { 3225 /* 3226 * Treat this as a vdev child I/O. 3227 */ 3228 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3229 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3230 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3231 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3232 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3233 } 3234 3235 error = zio_wait(zio); 3236 spa_config_exit(spa, SCL_STATE, FTAG); 3237 3238 if (error) { 3239 (void) printf("Read of %s failed, error: %d\n", thing, error); 3240 goto out; 3241 } 3242 3243 if (flags & ZDB_FLAG_DECOMPRESS) { 3244 /* 3245 * We don't know how the data was compressed, so just try 3246 * every decompress function at every inflated blocksize. 3247 */ 3248 enum zio_compress c; 3249 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3250 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3251 3252 bcopy(pbuf, pbuf2, psize); 3253 3254 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3255 SPA_MAXBLOCKSIZE - psize) == 0); 3256 3257 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3258 SPA_MAXBLOCKSIZE - psize) == 0); 3259 3260 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3261 lsize -= SPA_MINBLOCKSIZE) { 3262 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3263 if (zio_decompress_data(c, pbuf, lbuf, 3264 psize, lsize) == 0 && 3265 zio_decompress_data(c, pbuf2, lbuf2, 3266 psize, lsize) == 0 && 3267 bcmp(lbuf, lbuf2, lsize) == 0) 3268 break; 3269 } 3270 if (c != ZIO_COMPRESS_FUNCTIONS) 3271 break; 3272 lsize -= SPA_MINBLOCKSIZE; 3273 } 3274 3275 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3276 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3277 3278 if (lsize <= psize) { 3279 (void) printf("Decompress of %s failed\n", thing); 3280 goto out; 3281 } 3282 buf = lbuf; 3283 size = lsize; 3284 } else { 3285 buf = pbuf; 3286 size = psize; 3287 } 3288 3289 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3290 zdb_print_blkptr((blkptr_t *)(void *) 3291 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3292 else if (flags & ZDB_FLAG_RAW) 3293 zdb_dump_block_raw(buf, size, flags); 3294 else if (flags & ZDB_FLAG_INDIRECT) 3295 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3296 flags); 3297 else if (flags & ZDB_FLAG_GBH) 3298 zdb_dump_gbh(buf, flags); 3299 else 3300 zdb_dump_block(thing, buf, size, flags); 3301 3302out: 3303 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3304 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3305 free(dup); 3306} 3307 3308static boolean_t 3309pool_match(nvlist_t *cfg, char *tgt) 3310{ 3311 uint64_t v, guid = strtoull(tgt, NULL, 0); 3312 char *s; 3313 3314 if (guid != 0) { 3315 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3316 return (v == guid); 3317 } else { 3318 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3319 return (strcmp(s, tgt) == 0); 3320 } 3321 return (B_FALSE); 3322} 3323 3324static char * 3325find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3326{ 3327 nvlist_t *pools; 3328 nvlist_t *match = NULL; 3329 char *name = NULL; 3330 char *sepp = NULL; 3331 char sep; 3332 int count = 0; 3333 importargs_t args = { 0 }; 3334 3335 args.paths = dirc; 3336 args.path = dirv; 3337 args.can_be_active = B_TRUE; 3338 3339 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3340 sep = *sepp; 3341 *sepp = '\0'; 3342 } 3343 3344 pools = zpool_search_import(g_zfs, &args); 3345 3346 if (pools != NULL) { 3347 nvpair_t *elem = NULL; 3348 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3349 verify(nvpair_value_nvlist(elem, configp) == 0); 3350 if (pool_match(*configp, *target)) { 3351 count++; 3352 if (match != NULL) { 3353 /* print previously found config */ 3354 if (name != NULL) { 3355 (void) printf("%s\n", name); 3356 dump_nvlist(match, 8); 3357 name = NULL; 3358 } 3359 (void) printf("%s\n", 3360 nvpair_name(elem)); 3361 dump_nvlist(*configp, 8); 3362 } else { 3363 match = *configp; 3364 name = nvpair_name(elem); 3365 } 3366 } 3367 } 3368 } 3369 if (count > 1) 3370 (void) fatal("\tMatched %d pools - use pool GUID " 3371 "instead of pool name or \n" 3372 "\tpool name part of a dataset name to select pool", count); 3373 3374 if (sepp) 3375 *sepp = sep; 3376 /* 3377 * If pool GUID was specified for pool id, replace it with pool name 3378 */ 3379 if (name && (strstr(*target, name) != *target)) { 3380 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3381 3382 *target = umem_alloc(sz, UMEM_NOFAIL); 3383 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3384 } 3385 3386 *configp = name ? match : NULL; 3387 3388 return (name); 3389} 3390 3391int 3392main(int argc, char **argv) 3393{ 3394 int i, c; 3395 struct rlimit rl = { 1024, 1024 }; 3396 spa_t *spa = NULL; 3397 objset_t *os = NULL; 3398 int dump_all = 1; 3399 int verbose = 0; 3400 int error = 0; 3401 char **searchdirs = NULL; 3402 int nsearch = 0; 3403 char *target; 3404 nvlist_t *policy = NULL; 3405 uint64_t max_txg = UINT64_MAX; 3406 int rewind = ZPOOL_NEVER_REWIND; 3407 3408 (void) setrlimit(RLIMIT_NOFILE, &rl); 3409 (void) enable_extended_FILE_stdio(-1, -1); 3410 3411 dprintf_setup(&argc, argv); 3412 3413 while ((c = getopt(argc, argv, 3414 "bcdhilmMI:suCDRSAFLXx:evp:t:U:P")) != -1) { 3415 switch (c) { 3416 case 'b': 3417 case 'c': 3418 case 'd': 3419 case 'h': 3420 case 'i': 3421 case 'l': 3422 case 'm': 3423 case 's': 3424 case 'u': 3425 case 'C': 3426 case 'D': 3427 case 'M': 3428 case 'R': 3429 case 'S': 3430 dump_opt[c]++; 3431 dump_all = 0; 3432 break; 3433 case 'A': 3434 case 'F': 3435 case 'L': 3436 case 'X': 3437 case 'e': 3438 case 'P': 3439 dump_opt[c]++; 3440 break; 3441 case 'I': 3442 max_inflight = strtoull(optarg, NULL, 0); 3443 if (max_inflight == 0) { 3444 (void) fprintf(stderr, "maximum number " 3445 "of inflight I/Os must be greater " 3446 "than 0\n"); 3447 usage(); 3448 } 3449 break; 3450 case 'p': 3451 if (searchdirs == NULL) { 3452 searchdirs = umem_alloc(sizeof (char *), 3453 UMEM_NOFAIL); 3454 } else { 3455 char **tmp = umem_alloc((nsearch + 1) * 3456 sizeof (char *), UMEM_NOFAIL); 3457 bcopy(searchdirs, tmp, nsearch * 3458 sizeof (char *)); 3459 umem_free(searchdirs, 3460 nsearch * sizeof (char *)); 3461 searchdirs = tmp; 3462 } 3463 searchdirs[nsearch++] = optarg; 3464 break; 3465 case 't': 3466 max_txg = strtoull(optarg, NULL, 0); 3467 if (max_txg < TXG_INITIAL) { 3468 (void) fprintf(stderr, "incorrect txg " 3469 "specified: %s\n", optarg); 3470 usage(); 3471 } 3472 break; 3473 case 'U': 3474 spa_config_path = optarg; 3475 break; 3476 case 'v': 3477 verbose++; 3478 break; 3479 case 'x': 3480 vn_dumpdir = optarg; 3481 break; 3482 default: 3483 usage(); 3484 break; 3485 } 3486 } 3487 3488 if (!dump_opt['e'] && searchdirs != NULL) { 3489 (void) fprintf(stderr, "-p option requires use of -e\n"); 3490 usage(); 3491 } 3492 3493 kernel_init(FREAD); 3494 g_zfs = libzfs_init(); 3495 ASSERT(g_zfs != NULL); 3496 3497 if (dump_all) 3498 verbose = MAX(verbose, 1); 3499 3500 for (c = 0; c < 256; c++) { 3501 if (dump_all && !strchr("elAFLRSXP", c)) 3502 dump_opt[c] = 1; 3503 if (dump_opt[c]) 3504 dump_opt[c] += verbose; 3505 } 3506 3507 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3508 zfs_recover = (dump_opt['A'] > 1); 3509 3510 argc -= optind; 3511 argv += optind; 3512 3513 if (argc < 2 && dump_opt['R']) 3514 usage(); 3515 if (argc < 1) { 3516 if (!dump_opt['e'] && dump_opt['C']) { 3517 dump_cachefile(spa_config_path); 3518 return (0); 3519 } 3520 usage(); 3521 } 3522 3523 if (dump_opt['l']) { 3524 dump_label(argv[0]); 3525 return (0); 3526 } 3527 3528 if (dump_opt['X'] || dump_opt['F']) 3529 rewind = ZPOOL_DO_REWIND | 3530 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3531 3532 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3533 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3534 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3535 fatal("internal error: %s", strerror(ENOMEM)); 3536 3537 error = 0; 3538 target = argv[0]; 3539 3540 if (dump_opt['e']) { 3541 nvlist_t *cfg = NULL; 3542 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3543 3544 error = ENOENT; 3545 if (name) { 3546 if (dump_opt['C'] > 1) { 3547 (void) printf("\nConfiguration for import:\n"); 3548 dump_nvlist(cfg, 8); 3549 } 3550 if (nvlist_add_nvlist(cfg, 3551 ZPOOL_REWIND_POLICY, policy) != 0) { 3552 fatal("can't open '%s': %s", 3553 target, strerror(ENOMEM)); 3554 } 3555 if ((error = spa_import(name, cfg, NULL, 3556 ZFS_IMPORT_MISSING_LOG)) != 0) { 3557 error = spa_import(name, cfg, NULL, 3558 ZFS_IMPORT_VERBATIM); 3559 } 3560 } 3561 } 3562 3563 if (error == 0) { 3564 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3565 error = spa_open_rewind(target, &spa, FTAG, policy, 3566 NULL); 3567 if (error) { 3568 /* 3569 * If we're missing the log device then 3570 * try opening the pool after clearing the 3571 * log state. 3572 */ 3573 mutex_enter(&spa_namespace_lock); 3574 if ((spa = spa_lookup(target)) != NULL && 3575 spa->spa_log_state == SPA_LOG_MISSING) { 3576 spa->spa_log_state = SPA_LOG_CLEAR; 3577 error = 0; 3578 } 3579 mutex_exit(&spa_namespace_lock); 3580 3581 if (!error) { 3582 error = spa_open_rewind(target, &spa, 3583 FTAG, policy, NULL); 3584 } 3585 } 3586 } else { 3587 error = dmu_objset_own(target, DMU_OST_ANY, 3588 B_TRUE, FTAG, &os); 3589 } 3590 } 3591 nvlist_free(policy); 3592 3593 if (error) 3594 fatal("can't open '%s': %s", target, strerror(error)); 3595 3596 argv++; 3597 argc--; 3598 if (!dump_opt['R']) { 3599 if (argc > 0) { 3600 zopt_objects = argc; 3601 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3602 for (i = 0; i < zopt_objects; i++) { 3603 errno = 0; 3604 zopt_object[i] = strtoull(argv[i], NULL, 0); 3605 if (zopt_object[i] == 0 && errno != 0) 3606 fatal("bad number %s: %s", 3607 argv[i], strerror(errno)); 3608 } 3609 } 3610 if (os != NULL) { 3611 dump_dir(os); 3612 } else if (zopt_objects > 0 && !dump_opt['m']) { 3613 dump_dir(spa->spa_meta_objset); 3614 } else { 3615 dump_zpool(spa); 3616 } 3617 } else { 3618 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3619 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3620 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3621 flagbits['e'] = ZDB_FLAG_BSWAP; 3622 flagbits['g'] = ZDB_FLAG_GBH; 3623 flagbits['i'] = ZDB_FLAG_INDIRECT; 3624 flagbits['p'] = ZDB_FLAG_PHYS; 3625 flagbits['r'] = ZDB_FLAG_RAW; 3626 3627 for (i = 0; i < argc; i++) 3628 zdb_read_block(argv[i], spa); 3629 } 3630 3631 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3632 3633 fuid_table_destroy(); 3634 sa_loaded = B_FALSE; 3635 3636 libzfs_fini(g_zfs); 3637 kernel_fini(); 3638 3639 return (0); 3640} 3641