zdb.c revision 268653
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2012, 2014 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern 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 [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]] " 115 "[-U config] [-M inflight I/Os] [-x dumpdir] poolname [object...]\n" 116 " %s [-divPA] [-e -p path...] [-U config] dataset " 117 "[object...]\n" 118 " %s -m [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 119 "poolname [vdev [metaslab...]]\n" 120 " %s -R [-A] [-e [-p path...]] poolname " 121 "vdev:offset:size[:flags]\n" 122 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 123 " %s -l [-uA] device\n" 124 " %s -C [-A] [-U config]\n\n", 125 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 126 127 (void) fprintf(stderr, " Dataset name must include at least one " 128 "separator character '/' or '@'\n"); 129 (void) fprintf(stderr, " If dataset name is specified, only that " 130 "dataset is dumped\n"); 131 (void) fprintf(stderr, " If object numbers are specified, only " 132 "those objects are dumped\n\n"); 133 (void) fprintf(stderr, " Options to control amount of output:\n"); 134 (void) fprintf(stderr, " -u uberblock\n"); 135 (void) fprintf(stderr, " -d dataset(s)\n"); 136 (void) fprintf(stderr, " -i intent logs\n"); 137 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 138 (void) fprintf(stderr, " -h pool history\n"); 139 (void) fprintf(stderr, " -b block statistics\n"); 140 (void) fprintf(stderr, " -m metaslabs\n"); 141 (void) fprintf(stderr, " -c checksum all metadata (twice for " 142 "all data) blocks\n"); 143 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 144 (void) fprintf(stderr, " -D dedup statistics\n"); 145 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 146 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 147 (void) fprintf(stderr, " -l dump label contents\n"); 148 (void) fprintf(stderr, " -L disable leak tracking (do not " 149 "load spacemaps)\n"); 150 (void) fprintf(stderr, " -R read and display block from a " 151 "device\n\n"); 152 (void) fprintf(stderr, " Below options are intended for use " 153 "with other options:\n"); 154 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 155 "panic recovery (-AA) or both (-AAA)\n"); 156 (void) fprintf(stderr, " -F attempt automatic rewind within " 157 "safe range of transaction groups\n"); 158 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 159 "cachefile\n"); 160 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 161 "work with dataset)\n"); 162 (void) fprintf(stderr, " -e pool is exported/destroyed/" 163 "has altroot/not in a cachefile\n"); 164 (void) fprintf(stderr, " -p <path> -- use one or more with " 165 "-e to specify path to vdev dir\n"); 166 (void) fprintf(stderr, " -x <dumpdir> -- " 167 "dump all read blocks into specified directory\n"); 168 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 169 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 170 "searching for uberblocks\n"); 171 (void) fprintf(stderr, " -M <number of inflight I/Os> -- " 172 "specify the maximum number of " 173 "checksumming I/Os [default is 200]\n"); 174 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 175 "to make only that option verbose\n"); 176 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 177 exit(1); 178} 179 180/* 181 * Called for usage errors that are discovered after a call to spa_open(), 182 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 183 */ 184 185static void 186fatal(const char *fmt, ...) 187{ 188 va_list ap; 189 190 va_start(ap, fmt); 191 (void) fprintf(stderr, "%s: ", cmdname); 192 (void) vfprintf(stderr, fmt, ap); 193 va_end(ap); 194 (void) fprintf(stderr, "\n"); 195 196 exit(1); 197} 198 199/* ARGSUSED */ 200static void 201dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 202{ 203 nvlist_t *nv; 204 size_t nvsize = *(uint64_t *)data; 205 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 206 207 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 208 209 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 210 211 umem_free(packed, nvsize); 212 213 dump_nvlist(nv, 8); 214 215 nvlist_free(nv); 216} 217 218/* ARGSUSED */ 219static void 220dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 221{ 222 spa_history_phys_t *shp = data; 223 224 if (shp == NULL) 225 return; 226 227 (void) printf("\t\tpool_create_len = %llu\n", 228 (u_longlong_t)shp->sh_pool_create_len); 229 (void) printf("\t\tphys_max_off = %llu\n", 230 (u_longlong_t)shp->sh_phys_max_off); 231 (void) printf("\t\tbof = %llu\n", 232 (u_longlong_t)shp->sh_bof); 233 (void) printf("\t\teof = %llu\n", 234 (u_longlong_t)shp->sh_eof); 235 (void) printf("\t\trecords_lost = %llu\n", 236 (u_longlong_t)shp->sh_records_lost); 237} 238 239static void 240zdb_nicenum(uint64_t num, char *buf) 241{ 242 if (dump_opt['P']) 243 (void) sprintf(buf, "%llu", (longlong_t)num); 244 else 245 nicenum(num, buf); 246} 247 248const char histo_stars[] = "****************************************"; 249const int histo_width = sizeof (histo_stars) - 1; 250 251static void 252dump_histogram(const uint64_t *histo, int size, int offset) 253{ 254 int i; 255 int minidx = size - 1; 256 int maxidx = 0; 257 uint64_t max = 0; 258 259 for (i = 0; i < size; i++) { 260 if (histo[i] > max) 261 max = histo[i]; 262 if (histo[i] > 0 && i > maxidx) 263 maxidx = i; 264 if (histo[i] > 0 && i < minidx) 265 minidx = i; 266 } 267 268 if (max < histo_width) 269 max = histo_width; 270 271 for (i = minidx; i <= maxidx; i++) { 272 (void) printf("\t\t\t%3u: %6llu %s\n", 273 i + offset, (u_longlong_t)histo[i], 274 &histo_stars[(max - histo[i]) * histo_width / max]); 275 } 276} 277 278static void 279dump_zap_stats(objset_t *os, uint64_t object) 280{ 281 int error; 282 zap_stats_t zs; 283 284 error = zap_get_stats(os, object, &zs); 285 if (error) 286 return; 287 288 if (zs.zs_ptrtbl_len == 0) { 289 ASSERT(zs.zs_num_blocks == 1); 290 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 291 (u_longlong_t)zs.zs_blocksize, 292 (u_longlong_t)zs.zs_num_entries); 293 return; 294 } 295 296 (void) printf("\tFat ZAP stats:\n"); 297 298 (void) printf("\t\tPointer table:\n"); 299 (void) printf("\t\t\t%llu elements\n", 300 (u_longlong_t)zs.zs_ptrtbl_len); 301 (void) printf("\t\t\tzt_blk: %llu\n", 302 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 303 (void) printf("\t\t\tzt_numblks: %llu\n", 304 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 305 (void) printf("\t\t\tzt_shift: %llu\n", 306 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 307 (void) printf("\t\t\tzt_blks_copied: %llu\n", 308 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 309 (void) printf("\t\t\tzt_nextblk: %llu\n", 310 (u_longlong_t)zs.zs_ptrtbl_nextblk); 311 312 (void) printf("\t\tZAP entries: %llu\n", 313 (u_longlong_t)zs.zs_num_entries); 314 (void) printf("\t\tLeaf blocks: %llu\n", 315 (u_longlong_t)zs.zs_num_leafs); 316 (void) printf("\t\tTotal blocks: %llu\n", 317 (u_longlong_t)zs.zs_num_blocks); 318 (void) printf("\t\tzap_block_type: 0x%llx\n", 319 (u_longlong_t)zs.zs_block_type); 320 (void) printf("\t\tzap_magic: 0x%llx\n", 321 (u_longlong_t)zs.zs_magic); 322 (void) printf("\t\tzap_salt: 0x%llx\n", 323 (u_longlong_t)zs.zs_salt); 324 325 (void) printf("\t\tLeafs with 2^n pointers:\n"); 326 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 327 328 (void) printf("\t\tBlocks with n*5 entries:\n"); 329 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 330 331 (void) printf("\t\tBlocks n/10 full:\n"); 332 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 333 334 (void) printf("\t\tEntries with n chunks:\n"); 335 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 336 337 (void) printf("\t\tBuckets with n entries:\n"); 338 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 339} 340 341/*ARGSUSED*/ 342static void 343dump_none(objset_t *os, uint64_t object, void *data, size_t size) 344{ 345} 346 347/*ARGSUSED*/ 348static void 349dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 350{ 351 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 352} 353 354/*ARGSUSED*/ 355void 356dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 357{ 358} 359 360/*ARGSUSED*/ 361static void 362dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 363{ 364} 365 366/*ARGSUSED*/ 367static void 368dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 369{ 370 zap_cursor_t zc; 371 zap_attribute_t attr; 372 void *prop; 373 int i; 374 375 dump_zap_stats(os, object); 376 (void) printf("\n"); 377 378 for (zap_cursor_init(&zc, os, object); 379 zap_cursor_retrieve(&zc, &attr) == 0; 380 zap_cursor_advance(&zc)) { 381 (void) printf("\t\t%s = ", attr.za_name); 382 if (attr.za_num_integers == 0) { 383 (void) printf("\n"); 384 continue; 385 } 386 prop = umem_zalloc(attr.za_num_integers * 387 attr.za_integer_length, UMEM_NOFAIL); 388 (void) zap_lookup(os, object, attr.za_name, 389 attr.za_integer_length, attr.za_num_integers, prop); 390 if (attr.za_integer_length == 1) { 391 (void) printf("%s", (char *)prop); 392 } else { 393 for (i = 0; i < attr.za_num_integers; i++) { 394 switch (attr.za_integer_length) { 395 case 2: 396 (void) printf("%u ", 397 ((uint16_t *)prop)[i]); 398 break; 399 case 4: 400 (void) printf("%u ", 401 ((uint32_t *)prop)[i]); 402 break; 403 case 8: 404 (void) printf("%lld ", 405 (u_longlong_t)((int64_t *)prop)[i]); 406 break; 407 } 408 } 409 } 410 (void) printf("\n"); 411 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 412 } 413 zap_cursor_fini(&zc); 414} 415 416/*ARGSUSED*/ 417static void 418dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 419{ 420 dump_zap_stats(os, object); 421 /* contents are printed elsewhere, properly decoded */ 422} 423 424/*ARGSUSED*/ 425static void 426dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 427{ 428 zap_cursor_t zc; 429 zap_attribute_t attr; 430 431 dump_zap_stats(os, object); 432 (void) printf("\n"); 433 434 for (zap_cursor_init(&zc, os, object); 435 zap_cursor_retrieve(&zc, &attr) == 0; 436 zap_cursor_advance(&zc)) { 437 (void) printf("\t\t%s = ", attr.za_name); 438 if (attr.za_num_integers == 0) { 439 (void) printf("\n"); 440 continue; 441 } 442 (void) printf(" %llx : [%d:%d:%d]\n", 443 (u_longlong_t)attr.za_first_integer, 444 (int)ATTR_LENGTH(attr.za_first_integer), 445 (int)ATTR_BSWAP(attr.za_first_integer), 446 (int)ATTR_NUM(attr.za_first_integer)); 447 } 448 zap_cursor_fini(&zc); 449} 450 451/*ARGSUSED*/ 452static void 453dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 454{ 455 zap_cursor_t zc; 456 zap_attribute_t attr; 457 uint16_t *layout_attrs; 458 int i; 459 460 dump_zap_stats(os, object); 461 (void) printf("\n"); 462 463 for (zap_cursor_init(&zc, os, object); 464 zap_cursor_retrieve(&zc, &attr) == 0; 465 zap_cursor_advance(&zc)) { 466 (void) printf("\t\t%s = [", attr.za_name); 467 if (attr.za_num_integers == 0) { 468 (void) printf("\n"); 469 continue; 470 } 471 472 VERIFY(attr.za_integer_length == 2); 473 layout_attrs = umem_zalloc(attr.za_num_integers * 474 attr.za_integer_length, UMEM_NOFAIL); 475 476 VERIFY(zap_lookup(os, object, attr.za_name, 477 attr.za_integer_length, 478 attr.za_num_integers, layout_attrs) == 0); 479 480 for (i = 0; i != attr.za_num_integers; i++) 481 (void) printf(" %d ", (int)layout_attrs[i]); 482 (void) printf("]\n"); 483 umem_free(layout_attrs, 484 attr.za_num_integers * attr.za_integer_length); 485 } 486 zap_cursor_fini(&zc); 487} 488 489/*ARGSUSED*/ 490static void 491dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 492{ 493 zap_cursor_t zc; 494 zap_attribute_t attr; 495 const char *typenames[] = { 496 /* 0 */ "not specified", 497 /* 1 */ "FIFO", 498 /* 2 */ "Character Device", 499 /* 3 */ "3 (invalid)", 500 /* 4 */ "Directory", 501 /* 5 */ "5 (invalid)", 502 /* 6 */ "Block Device", 503 /* 7 */ "7 (invalid)", 504 /* 8 */ "Regular File", 505 /* 9 */ "9 (invalid)", 506 /* 10 */ "Symbolic Link", 507 /* 11 */ "11 (invalid)", 508 /* 12 */ "Socket", 509 /* 13 */ "Door", 510 /* 14 */ "Event Port", 511 /* 15 */ "15 (invalid)", 512 }; 513 514 dump_zap_stats(os, object); 515 (void) printf("\n"); 516 517 for (zap_cursor_init(&zc, os, object); 518 zap_cursor_retrieve(&zc, &attr) == 0; 519 zap_cursor_advance(&zc)) { 520 (void) printf("\t\t%s = %lld (type: %s)\n", 521 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 522 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 523 } 524 zap_cursor_fini(&zc); 525} 526 527int 528get_dtl_refcount(vdev_t *vd) 529{ 530 int refcount = 0; 531 532 if (vd->vdev_ops->vdev_op_leaf) { 533 space_map_t *sm = vd->vdev_dtl_sm; 534 535 if (sm != NULL && 536 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 537 return (1); 538 return (0); 539 } 540 541 for (int c = 0; c < vd->vdev_children; c++) 542 refcount += get_dtl_refcount(vd->vdev_child[c]); 543 return (refcount); 544} 545 546int 547get_metaslab_refcount(vdev_t *vd) 548{ 549 int refcount = 0; 550 551 if (vd->vdev_top == vd) { 552 for (int m = 0; m < vd->vdev_ms_count; m++) { 553 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 554 555 if (sm != NULL && 556 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 557 refcount++; 558 } 559 } 560 for (int c = 0; c < vd->vdev_children; c++) 561 refcount += get_metaslab_refcount(vd->vdev_child[c]); 562 563 return (refcount); 564} 565 566static int 567verify_spacemap_refcounts(spa_t *spa) 568{ 569 uint64_t expected_refcount = 0; 570 uint64_t actual_refcount; 571 572 (void) feature_get_refcount(spa, 573 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 574 &expected_refcount); 575 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 576 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 577 578 if (expected_refcount != actual_refcount) { 579 (void) printf("space map refcount mismatch: expected %lld != " 580 "actual %lld\n", 581 (longlong_t)expected_refcount, 582 (longlong_t)actual_refcount); 583 return (2); 584 } 585 return (0); 586} 587 588static void 589dump_spacemap(objset_t *os, space_map_t *sm) 590{ 591 uint64_t alloc, offset, entry; 592 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 593 "INVALID", "INVALID", "INVALID", "INVALID" }; 594 595 if (sm == NULL) 596 return; 597 598 /* 599 * Print out the freelist entries in both encoded and decoded form. 600 */ 601 alloc = 0; 602 for (offset = 0; offset < space_map_length(sm); 603 offset += sizeof (entry)) { 604 uint8_t mapshift = sm->sm_shift; 605 606 VERIFY0(dmu_read(os, space_map_object(sm), offset, 607 sizeof (entry), &entry, DMU_READ_PREFETCH)); 608 if (SM_DEBUG_DECODE(entry)) { 609 610 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 611 (u_longlong_t)(offset / sizeof (entry)), 612 ddata[SM_DEBUG_ACTION_DECODE(entry)], 613 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 614 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 615 } else { 616 (void) printf("\t [%6llu] %c range:" 617 " %010llx-%010llx size: %06llx\n", 618 (u_longlong_t)(offset / sizeof (entry)), 619 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 620 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 621 mapshift) + sm->sm_start), 622 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 623 mapshift) + sm->sm_start + 624 (SM_RUN_DECODE(entry) << mapshift)), 625 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 626 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 627 alloc += SM_RUN_DECODE(entry) << mapshift; 628 else 629 alloc -= SM_RUN_DECODE(entry) << mapshift; 630 } 631 } 632 if (alloc != space_map_allocated(sm)) { 633 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 634 "with space map summary (%llu)\n", 635 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 636 } 637} 638 639static void 640dump_metaslab_stats(metaslab_t *msp) 641{ 642 char maxbuf[32]; 643 range_tree_t *rt = msp->ms_tree; 644 avl_tree_t *t = &msp->ms_size_tree; 645 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 646 647 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 648 649 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 650 "segments", avl_numnodes(t), "maxsize", maxbuf, 651 "freepct", free_pct); 652 (void) printf("\tIn-memory histogram:\n"); 653 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 654} 655 656static void 657dump_metaslab(metaslab_t *msp) 658{ 659 vdev_t *vd = msp->ms_group->mg_vd; 660 spa_t *spa = vd->vdev_spa; 661 space_map_t *sm = msp->ms_sm; 662 char freebuf[32]; 663 664 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 665 666 (void) printf( 667 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 668 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 669 (u_longlong_t)space_map_object(sm), freebuf); 670 671 if (dump_opt['m'] > 2 && !dump_opt['L']) { 672 mutex_enter(&msp->ms_lock); 673 metaslab_load_wait(msp); 674 if (!msp->ms_loaded) { 675 VERIFY0(metaslab_load(msp)); 676 range_tree_stat_verify(msp->ms_tree); 677 } 678 dump_metaslab_stats(msp); 679 metaslab_unload(msp); 680 mutex_exit(&msp->ms_lock); 681 } 682 683 if (dump_opt['m'] > 1 && sm != NULL && 684 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 685 /* 686 * The space map histogram represents free space in chunks 687 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 688 */ 689 (void) printf("\tOn-disk histogram:\n"); 690 dump_histogram(sm->sm_phys->smp_histogram, 691 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 692 } 693 694 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 695 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 696 697 mutex_enter(&msp->ms_lock); 698 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 699 mutex_exit(&msp->ms_lock); 700 } 701} 702 703static void 704print_vdev_metaslab_header(vdev_t *vd) 705{ 706 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 707 (u_longlong_t)vd->vdev_id, 708 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 709 "offset", "spacemap", "free"); 710 (void) printf("\t%15s %19s %15s %10s\n", 711 "---------------", "-------------------", 712 "---------------", "-------------"); 713} 714 715static void 716dump_metaslabs(spa_t *spa) 717{ 718 vdev_t *vd, *rvd = spa->spa_root_vdev; 719 uint64_t m, c = 0, children = rvd->vdev_children; 720 721 (void) printf("\nMetaslabs:\n"); 722 723 if (!dump_opt['d'] && zopt_objects > 0) { 724 c = zopt_object[0]; 725 726 if (c >= children) 727 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 728 729 if (zopt_objects > 1) { 730 vd = rvd->vdev_child[c]; 731 print_vdev_metaslab_header(vd); 732 733 for (m = 1; m < zopt_objects; m++) { 734 if (zopt_object[m] < vd->vdev_ms_count) 735 dump_metaslab( 736 vd->vdev_ms[zopt_object[m]]); 737 else 738 (void) fprintf(stderr, "bad metaslab " 739 "number %llu\n", 740 (u_longlong_t)zopt_object[m]); 741 } 742 (void) printf("\n"); 743 return; 744 } 745 children = c + 1; 746 } 747 for (; c < children; c++) { 748 vd = rvd->vdev_child[c]; 749 print_vdev_metaslab_header(vd); 750 751 for (m = 0; m < vd->vdev_ms_count; m++) 752 dump_metaslab(vd->vdev_ms[m]); 753 (void) printf("\n"); 754 } 755} 756 757static void 758dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 759{ 760 const ddt_phys_t *ddp = dde->dde_phys; 761 const ddt_key_t *ddk = &dde->dde_key; 762 char *types[4] = { "ditto", "single", "double", "triple" }; 763 char blkbuf[BP_SPRINTF_LEN]; 764 blkptr_t blk; 765 766 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 767 if (ddp->ddp_phys_birth == 0) 768 continue; 769 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 770 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 771 (void) printf("index %llx refcnt %llu %s %s\n", 772 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 773 types[p], blkbuf); 774 } 775} 776 777static void 778dump_dedup_ratio(const ddt_stat_t *dds) 779{ 780 double rL, rP, rD, D, dedup, compress, copies; 781 782 if (dds->dds_blocks == 0) 783 return; 784 785 rL = (double)dds->dds_ref_lsize; 786 rP = (double)dds->dds_ref_psize; 787 rD = (double)dds->dds_ref_dsize; 788 D = (double)dds->dds_dsize; 789 790 dedup = rD / D; 791 compress = rL / rP; 792 copies = rD / rP; 793 794 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 795 "dedup * compress / copies = %.2f\n\n", 796 dedup, compress, copies, dedup * compress / copies); 797} 798 799static void 800dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 801{ 802 char name[DDT_NAMELEN]; 803 ddt_entry_t dde; 804 uint64_t walk = 0; 805 dmu_object_info_t doi; 806 uint64_t count, dspace, mspace; 807 int error; 808 809 error = ddt_object_info(ddt, type, class, &doi); 810 811 if (error == ENOENT) 812 return; 813 ASSERT(error == 0); 814 815 error = ddt_object_count(ddt, type, class, &count); 816 ASSERT(error == 0); 817 if (count == 0) 818 return; 819 820 dspace = doi.doi_physical_blocks_512 << 9; 821 mspace = doi.doi_fill_count * doi.doi_data_block_size; 822 823 ddt_object_name(ddt, type, class, name); 824 825 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 826 name, 827 (u_longlong_t)count, 828 (u_longlong_t)(dspace / count), 829 (u_longlong_t)(mspace / count)); 830 831 if (dump_opt['D'] < 3) 832 return; 833 834 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 835 836 if (dump_opt['D'] < 4) 837 return; 838 839 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 840 return; 841 842 (void) printf("%s contents:\n\n", name); 843 844 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 845 dump_dde(ddt, &dde, walk); 846 847 ASSERT(error == ENOENT); 848 849 (void) printf("\n"); 850} 851 852static void 853dump_all_ddts(spa_t *spa) 854{ 855 ddt_histogram_t ddh_total = { 0 }; 856 ddt_stat_t dds_total = { 0 }; 857 858 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 859 ddt_t *ddt = spa->spa_ddt[c]; 860 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 861 for (enum ddt_class class = 0; class < DDT_CLASSES; 862 class++) { 863 dump_ddt(ddt, type, class); 864 } 865 } 866 } 867 868 ddt_get_dedup_stats(spa, &dds_total); 869 870 if (dds_total.dds_blocks == 0) { 871 (void) printf("All DDTs are empty\n"); 872 return; 873 } 874 875 (void) printf("\n"); 876 877 if (dump_opt['D'] > 1) { 878 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 879 ddt_get_dedup_histogram(spa, &ddh_total); 880 zpool_dump_ddt(&dds_total, &ddh_total); 881 } 882 883 dump_dedup_ratio(&dds_total); 884} 885 886static void 887dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 888{ 889 char *prefix = arg; 890 891 (void) printf("%s [%llu,%llu) length %llu\n", 892 prefix, 893 (u_longlong_t)start, 894 (u_longlong_t)(start + size), 895 (u_longlong_t)(size)); 896} 897 898static void 899dump_dtl(vdev_t *vd, int indent) 900{ 901 spa_t *spa = vd->vdev_spa; 902 boolean_t required; 903 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 904 char prefix[256]; 905 906 spa_vdev_state_enter(spa, SCL_NONE); 907 required = vdev_dtl_required(vd); 908 (void) spa_vdev_state_exit(spa, NULL, 0); 909 910 if (indent == 0) 911 (void) printf("\nDirty time logs:\n\n"); 912 913 (void) printf("\t%*s%s [%s]\n", indent, "", 914 vd->vdev_path ? vd->vdev_path : 915 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 916 required ? "DTL-required" : "DTL-expendable"); 917 918 for (int t = 0; t < DTL_TYPES; t++) { 919 range_tree_t *rt = vd->vdev_dtl[t]; 920 if (range_tree_space(rt) == 0) 921 continue; 922 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 923 indent + 2, "", name[t]); 924 mutex_enter(rt->rt_lock); 925 range_tree_walk(rt, dump_dtl_seg, prefix); 926 mutex_exit(rt->rt_lock); 927 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 928 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 929 } 930 931 for (int c = 0; c < vd->vdev_children; c++) 932 dump_dtl(vd->vdev_child[c], indent + 4); 933} 934 935/* from spa_history.c: spa_history_create_obj() */ 936#define HIS_BUF_LEN_DEF (128 << 10) 937#define HIS_BUF_LEN_MAX (1 << 30) 938 939static void 940dump_history(spa_t *spa) 941{ 942 nvlist_t **events = NULL; 943 char *buf = NULL; 944 uint64_t bufsize = HIS_BUF_LEN_DEF; 945 uint64_t resid, len, off = 0; 946 uint_t num = 0; 947 int error; 948 time_t tsec; 949 struct tm t; 950 char tbuf[30]; 951 char internalstr[MAXPATHLEN]; 952 953 if ((buf = malloc(bufsize)) == NULL) 954 (void) fprintf(stderr, "Unable to read history: " 955 "out of memory\n"); 956 do { 957 len = bufsize; 958 959 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 960 (void) fprintf(stderr, "Unable to read history: " 961 "error %d\n", error); 962 return; 963 } 964 965 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 966 break; 967 off -= resid; 968 969 /* 970 * If the history block is too big, double the buffer 971 * size and try again. 972 */ 973 if (resid == len) { 974 free(buf); 975 buf = NULL; 976 977 bufsize <<= 1; 978 if ((bufsize >= HIS_BUF_LEN_MAX) || 979 ((buf = malloc(bufsize)) == NULL)) { 980 (void) fprintf(stderr, "Unable to read history: " 981 "out of memory\n"); 982 return; 983 } 984 } 985 } while (len != 0); 986 free(buf); 987 988 (void) printf("\nHistory:\n"); 989 for (int i = 0; i < num; i++) { 990 uint64_t time, txg, ievent; 991 char *cmd, *intstr; 992 boolean_t printed = B_FALSE; 993 994 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 995 &time) != 0) 996 goto next; 997 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 998 &cmd) != 0) { 999 if (nvlist_lookup_uint64(events[i], 1000 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1001 goto next; 1002 verify(nvlist_lookup_uint64(events[i], 1003 ZPOOL_HIST_TXG, &txg) == 0); 1004 verify(nvlist_lookup_string(events[i], 1005 ZPOOL_HIST_INT_STR, &intstr) == 0); 1006 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1007 goto next; 1008 1009 (void) snprintf(internalstr, 1010 sizeof (internalstr), 1011 "[internal %s txg:%lld] %s", 1012 zfs_history_event_names[ievent], txg, 1013 intstr); 1014 cmd = internalstr; 1015 } 1016 tsec = time; 1017 (void) localtime_r(&tsec, &t); 1018 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1019 (void) printf("%s %s\n", tbuf, cmd); 1020 printed = B_TRUE; 1021 1022next: 1023 if (dump_opt['h'] > 1) { 1024 if (!printed) 1025 (void) printf("unrecognized record:\n"); 1026 dump_nvlist(events[i], 2); 1027 } 1028 } 1029} 1030 1031/*ARGSUSED*/ 1032static void 1033dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1034{ 1035} 1036 1037static uint64_t 1038blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1039{ 1040 if (dnp == NULL) { 1041 ASSERT(zb->zb_level < 0); 1042 if (zb->zb_object == 0) 1043 return (zb->zb_blkid); 1044 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1045 } 1046 1047 ASSERT(zb->zb_level >= 0); 1048 1049 return ((zb->zb_blkid << 1050 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1051 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1052} 1053 1054static void 1055snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1056{ 1057 const dva_t *dva = bp->blk_dva; 1058 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1059 1060 if (dump_opt['b'] >= 6) { 1061 snprintf_blkptr(blkbuf, buflen, bp); 1062 return; 1063 } 1064 1065 if (BP_IS_EMBEDDED(bp)) { 1066 (void) sprintf(blkbuf, 1067 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1068 (int)BPE_GET_ETYPE(bp), 1069 (u_longlong_t)BPE_GET_LSIZE(bp), 1070 (u_longlong_t)BPE_GET_PSIZE(bp), 1071 (u_longlong_t)bp->blk_birth); 1072 return; 1073 } 1074 1075 blkbuf[0] = '\0'; 1076 for (int i = 0; i < ndvas; i++) 1077 (void) snprintf(blkbuf + strlen(blkbuf), 1078 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1079 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1080 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1081 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1082 1083 if (BP_IS_HOLE(bp)) { 1084 (void) snprintf(blkbuf + strlen(blkbuf), 1085 buflen - strlen(blkbuf), "B=%llu", 1086 (u_longlong_t)bp->blk_birth); 1087 } else { 1088 (void) snprintf(blkbuf + strlen(blkbuf), 1089 buflen - strlen(blkbuf), 1090 "%llxL/%llxP F=%llu B=%llu/%llu", 1091 (u_longlong_t)BP_GET_LSIZE(bp), 1092 (u_longlong_t)BP_GET_PSIZE(bp), 1093 (u_longlong_t)BP_GET_FILL(bp), 1094 (u_longlong_t)bp->blk_birth, 1095 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1096 } 1097} 1098 1099static void 1100print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1101 const dnode_phys_t *dnp) 1102{ 1103 char blkbuf[BP_SPRINTF_LEN]; 1104 int l; 1105 1106 if (!BP_IS_EMBEDDED(bp)) { 1107 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1108 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1109 } 1110 1111 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1112 1113 ASSERT(zb->zb_level >= 0); 1114 1115 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1116 if (l == zb->zb_level) { 1117 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1118 } else { 1119 (void) printf(" "); 1120 } 1121 } 1122 1123 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1124 (void) printf("%s\n", blkbuf); 1125} 1126 1127static int 1128visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1129 blkptr_t *bp, const zbookmark_t *zb) 1130{ 1131 int err = 0; 1132 1133 if (bp->blk_birth == 0) 1134 return (0); 1135 1136 print_indirect(bp, zb, dnp); 1137 1138 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1139 uint32_t flags = ARC_WAIT; 1140 int i; 1141 blkptr_t *cbp; 1142 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1143 arc_buf_t *buf; 1144 uint64_t fill = 0; 1145 1146 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1147 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1148 if (err) 1149 return (err); 1150 ASSERT(buf->b_data); 1151 1152 /* recursively visit blocks below this */ 1153 cbp = buf->b_data; 1154 for (i = 0; i < epb; i++, cbp++) { 1155 zbookmark_t czb; 1156 1157 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1158 zb->zb_level - 1, 1159 zb->zb_blkid * epb + i); 1160 err = visit_indirect(spa, dnp, cbp, &czb); 1161 if (err) 1162 break; 1163 fill += BP_GET_FILL(cbp); 1164 } 1165 if (!err) 1166 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1167 (void) arc_buf_remove_ref(buf, &buf); 1168 } 1169 1170 return (err); 1171} 1172 1173/*ARGSUSED*/ 1174static void 1175dump_indirect(dnode_t *dn) 1176{ 1177 dnode_phys_t *dnp = dn->dn_phys; 1178 int j; 1179 zbookmark_t czb; 1180 1181 (void) printf("Indirect blocks:\n"); 1182 1183 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1184 dn->dn_object, dnp->dn_nlevels - 1, 0); 1185 for (j = 0; j < dnp->dn_nblkptr; j++) { 1186 czb.zb_blkid = j; 1187 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1188 &dnp->dn_blkptr[j], &czb); 1189 } 1190 1191 (void) printf("\n"); 1192} 1193 1194/*ARGSUSED*/ 1195static void 1196dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1197{ 1198 dsl_dir_phys_t *dd = data; 1199 time_t crtime; 1200 char nice[32]; 1201 1202 if (dd == NULL) 1203 return; 1204 1205 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1206 1207 crtime = dd->dd_creation_time; 1208 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1209 (void) printf("\t\thead_dataset_obj = %llu\n", 1210 (u_longlong_t)dd->dd_head_dataset_obj); 1211 (void) printf("\t\tparent_dir_obj = %llu\n", 1212 (u_longlong_t)dd->dd_parent_obj); 1213 (void) printf("\t\torigin_obj = %llu\n", 1214 (u_longlong_t)dd->dd_origin_obj); 1215 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1216 (u_longlong_t)dd->dd_child_dir_zapobj); 1217 zdb_nicenum(dd->dd_used_bytes, nice); 1218 (void) printf("\t\tused_bytes = %s\n", nice); 1219 zdb_nicenum(dd->dd_compressed_bytes, nice); 1220 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1221 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1222 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1223 zdb_nicenum(dd->dd_quota, nice); 1224 (void) printf("\t\tquota = %s\n", nice); 1225 zdb_nicenum(dd->dd_reserved, nice); 1226 (void) printf("\t\treserved = %s\n", nice); 1227 (void) printf("\t\tprops_zapobj = %llu\n", 1228 (u_longlong_t)dd->dd_props_zapobj); 1229 (void) printf("\t\tdeleg_zapobj = %llu\n", 1230 (u_longlong_t)dd->dd_deleg_zapobj); 1231 (void) printf("\t\tflags = %llx\n", 1232 (u_longlong_t)dd->dd_flags); 1233 1234#define DO(which) \ 1235 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1236 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1237 DO(HEAD); 1238 DO(SNAP); 1239 DO(CHILD); 1240 DO(CHILD_RSRV); 1241 DO(REFRSRV); 1242#undef DO 1243} 1244 1245/*ARGSUSED*/ 1246static void 1247dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1248{ 1249 dsl_dataset_phys_t *ds = data; 1250 time_t crtime; 1251 char used[32], compressed[32], uncompressed[32], unique[32]; 1252 char blkbuf[BP_SPRINTF_LEN]; 1253 1254 if (ds == NULL) 1255 return; 1256 1257 ASSERT(size == sizeof (*ds)); 1258 crtime = ds->ds_creation_time; 1259 zdb_nicenum(ds->ds_referenced_bytes, used); 1260 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1261 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1262 zdb_nicenum(ds->ds_unique_bytes, unique); 1263 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1264 1265 (void) printf("\t\tdir_obj = %llu\n", 1266 (u_longlong_t)ds->ds_dir_obj); 1267 (void) printf("\t\tprev_snap_obj = %llu\n", 1268 (u_longlong_t)ds->ds_prev_snap_obj); 1269 (void) printf("\t\tprev_snap_txg = %llu\n", 1270 (u_longlong_t)ds->ds_prev_snap_txg); 1271 (void) printf("\t\tnext_snap_obj = %llu\n", 1272 (u_longlong_t)ds->ds_next_snap_obj); 1273 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1274 (u_longlong_t)ds->ds_snapnames_zapobj); 1275 (void) printf("\t\tnum_children = %llu\n", 1276 (u_longlong_t)ds->ds_num_children); 1277 (void) printf("\t\tuserrefs_obj = %llu\n", 1278 (u_longlong_t)ds->ds_userrefs_obj); 1279 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1280 (void) printf("\t\tcreation_txg = %llu\n", 1281 (u_longlong_t)ds->ds_creation_txg); 1282 (void) printf("\t\tdeadlist_obj = %llu\n", 1283 (u_longlong_t)ds->ds_deadlist_obj); 1284 (void) printf("\t\tused_bytes = %s\n", used); 1285 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1286 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1287 (void) printf("\t\tunique = %s\n", unique); 1288 (void) printf("\t\tfsid_guid = %llu\n", 1289 (u_longlong_t)ds->ds_fsid_guid); 1290 (void) printf("\t\tguid = %llu\n", 1291 (u_longlong_t)ds->ds_guid); 1292 (void) printf("\t\tflags = %llx\n", 1293 (u_longlong_t)ds->ds_flags); 1294 (void) printf("\t\tnext_clones_obj = %llu\n", 1295 (u_longlong_t)ds->ds_next_clones_obj); 1296 (void) printf("\t\tprops_obj = %llu\n", 1297 (u_longlong_t)ds->ds_props_obj); 1298 (void) printf("\t\tbp = %s\n", blkbuf); 1299} 1300 1301/* ARGSUSED */ 1302static int 1303dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1304{ 1305 char blkbuf[BP_SPRINTF_LEN]; 1306 1307 if (bp->blk_birth != 0) { 1308 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1309 (void) printf("\t%s\n", blkbuf); 1310 } 1311 return (0); 1312} 1313 1314static void 1315dump_bptree(objset_t *os, uint64_t obj, char *name) 1316{ 1317 char bytes[32]; 1318 bptree_phys_t *bt; 1319 dmu_buf_t *db; 1320 1321 if (dump_opt['d'] < 3) 1322 return; 1323 1324 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1325 bt = db->db_data; 1326 zdb_nicenum(bt->bt_bytes, bytes); 1327 (void) printf("\n %s: %llu datasets, %s\n", 1328 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1329 dmu_buf_rele(db, FTAG); 1330 1331 if (dump_opt['d'] < 5) 1332 return; 1333 1334 (void) printf("\n"); 1335 1336 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1337} 1338 1339/* ARGSUSED */ 1340static int 1341dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1342{ 1343 char blkbuf[BP_SPRINTF_LEN]; 1344 1345 ASSERT(bp->blk_birth != 0); 1346 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1347 (void) printf("\t%s\n", blkbuf); 1348 return (0); 1349} 1350 1351static void 1352dump_bpobj(bpobj_t *bpo, char *name, int indent) 1353{ 1354 char bytes[32]; 1355 char comp[32]; 1356 char uncomp[32]; 1357 1358 if (dump_opt['d'] < 3) 1359 return; 1360 1361 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1362 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1363 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1364 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1365 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1366 "%llu subobjs, %s (%s/%s comp)\n", 1367 indent * 8, name, 1368 (u_longlong_t)bpo->bpo_object, 1369 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1370 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1371 bytes, comp, uncomp); 1372 1373 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1374 uint64_t subobj; 1375 bpobj_t subbpo; 1376 int error; 1377 VERIFY0(dmu_read(bpo->bpo_os, 1378 bpo->bpo_phys->bpo_subobjs, 1379 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1380 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1381 if (error != 0) { 1382 (void) printf("ERROR %u while trying to open " 1383 "subobj id %llu\n", 1384 error, (u_longlong_t)subobj); 1385 continue; 1386 } 1387 dump_bpobj(&subbpo, "subobj", indent + 1); 1388 bpobj_close(&subbpo); 1389 } 1390 } else { 1391 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1392 indent * 8, name, 1393 (u_longlong_t)bpo->bpo_object, 1394 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1395 bytes); 1396 } 1397 1398 if (dump_opt['d'] < 5) 1399 return; 1400 1401 1402 if (indent == 0) { 1403 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1404 (void) printf("\n"); 1405 } 1406} 1407 1408static void 1409dump_deadlist(dsl_deadlist_t *dl) 1410{ 1411 dsl_deadlist_entry_t *dle; 1412 uint64_t unused; 1413 char bytes[32]; 1414 char comp[32]; 1415 char uncomp[32]; 1416 1417 if (dump_opt['d'] < 3) 1418 return; 1419 1420 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1421 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1422 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1423 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1424 bytes, comp, uncomp); 1425 1426 if (dump_opt['d'] < 4) 1427 return; 1428 1429 (void) printf("\n"); 1430 1431 /* force the tree to be loaded */ 1432 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1433 1434 for (dle = avl_first(&dl->dl_tree); dle; 1435 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1436 if (dump_opt['d'] >= 5) { 1437 char buf[128]; 1438 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1439 (longlong_t)dle->dle_mintxg, 1440 (longlong_t)dle->dle_bpobj.bpo_object); 1441 1442 dump_bpobj(&dle->dle_bpobj, buf, 0); 1443 } else { 1444 (void) printf("mintxg %llu -> obj %llu\n", 1445 (longlong_t)dle->dle_mintxg, 1446 (longlong_t)dle->dle_bpobj.bpo_object); 1447 1448 } 1449 } 1450} 1451 1452static avl_tree_t idx_tree; 1453static avl_tree_t domain_tree; 1454static boolean_t fuid_table_loaded; 1455static boolean_t sa_loaded; 1456sa_attr_type_t *sa_attr_table; 1457 1458static void 1459fuid_table_destroy() 1460{ 1461 if (fuid_table_loaded) { 1462 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1463 fuid_table_loaded = B_FALSE; 1464 } 1465} 1466 1467/* 1468 * print uid or gid information. 1469 * For normal POSIX id just the id is printed in decimal format. 1470 * For CIFS files with FUID the fuid is printed in hex followed by 1471 * the domain-rid string. 1472 */ 1473static void 1474print_idstr(uint64_t id, const char *id_type) 1475{ 1476 if (FUID_INDEX(id)) { 1477 char *domain; 1478 1479 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1480 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1481 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1482 } else { 1483 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1484 } 1485 1486} 1487 1488static void 1489dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1490{ 1491 uint32_t uid_idx, gid_idx; 1492 1493 uid_idx = FUID_INDEX(uid); 1494 gid_idx = FUID_INDEX(gid); 1495 1496 /* Load domain table, if not already loaded */ 1497 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1498 uint64_t fuid_obj; 1499 1500 /* first find the fuid object. It lives in the master node */ 1501 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1502 8, 1, &fuid_obj) == 0); 1503 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1504 (void) zfs_fuid_table_load(os, fuid_obj, 1505 &idx_tree, &domain_tree); 1506 fuid_table_loaded = B_TRUE; 1507 } 1508 1509 print_idstr(uid, "uid"); 1510 print_idstr(gid, "gid"); 1511} 1512 1513/*ARGSUSED*/ 1514static void 1515dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1516{ 1517 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1518 sa_handle_t *hdl; 1519 uint64_t xattr, rdev, gen; 1520 uint64_t uid, gid, mode, fsize, parent, links; 1521 uint64_t pflags; 1522 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1523 time_t z_crtime, z_atime, z_mtime, z_ctime; 1524 sa_bulk_attr_t bulk[12]; 1525 int idx = 0; 1526 int error; 1527 1528 if (!sa_loaded) { 1529 uint64_t sa_attrs = 0; 1530 uint64_t version; 1531 1532 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1533 8, 1, &version) == 0); 1534 if (version >= ZPL_VERSION_SA) { 1535 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1536 8, 1, &sa_attrs) == 0); 1537 } 1538 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1539 ZPL_END, &sa_attr_table)) != 0) { 1540 (void) printf("sa_setup failed errno %d, can't " 1541 "display znode contents\n", error); 1542 return; 1543 } 1544 sa_loaded = B_TRUE; 1545 } 1546 1547 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1548 (void) printf("Failed to get handle for SA znode\n"); 1549 return; 1550 } 1551 1552 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1553 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1554 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1555 &links, 8); 1556 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1557 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1558 &mode, 8); 1559 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1560 NULL, &parent, 8); 1561 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1562 &fsize, 8); 1563 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1564 acctm, 16); 1565 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1566 modtm, 16); 1567 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1568 crtm, 16); 1569 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1570 chgtm, 16); 1571 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1572 &pflags, 8); 1573 1574 if (sa_bulk_lookup(hdl, bulk, idx)) { 1575 (void) sa_handle_destroy(hdl); 1576 return; 1577 } 1578 1579 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1580 if (error != 0) { 1581 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1582 (u_longlong_t)object); 1583 } 1584 if (dump_opt['d'] < 3) { 1585 (void) printf("\t%s\n", path); 1586 (void) sa_handle_destroy(hdl); 1587 return; 1588 } 1589 1590 z_crtime = (time_t)crtm[0]; 1591 z_atime = (time_t)acctm[0]; 1592 z_mtime = (time_t)modtm[0]; 1593 z_ctime = (time_t)chgtm[0]; 1594 1595 (void) printf("\tpath %s\n", path); 1596 dump_uidgid(os, uid, gid); 1597 (void) printf("\tatime %s", ctime(&z_atime)); 1598 (void) printf("\tmtime %s", ctime(&z_mtime)); 1599 (void) printf("\tctime %s", ctime(&z_ctime)); 1600 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1601 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1602 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1603 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1604 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1605 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1606 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1607 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1608 sizeof (uint64_t)) == 0) 1609 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1610 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1611 sizeof (uint64_t)) == 0) 1612 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1613 sa_handle_destroy(hdl); 1614} 1615 1616/*ARGSUSED*/ 1617static void 1618dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1619{ 1620} 1621 1622/*ARGSUSED*/ 1623static void 1624dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1625{ 1626} 1627 1628static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1629 dump_none, /* unallocated */ 1630 dump_zap, /* object directory */ 1631 dump_uint64, /* object array */ 1632 dump_none, /* packed nvlist */ 1633 dump_packed_nvlist, /* packed nvlist size */ 1634 dump_none, /* bplist */ 1635 dump_none, /* bplist header */ 1636 dump_none, /* SPA space map header */ 1637 dump_none, /* SPA space map */ 1638 dump_none, /* ZIL intent log */ 1639 dump_dnode, /* DMU dnode */ 1640 dump_dmu_objset, /* DMU objset */ 1641 dump_dsl_dir, /* DSL directory */ 1642 dump_zap, /* DSL directory child map */ 1643 dump_zap, /* DSL dataset snap map */ 1644 dump_zap, /* DSL props */ 1645 dump_dsl_dataset, /* DSL dataset */ 1646 dump_znode, /* ZFS znode */ 1647 dump_acl, /* ZFS V0 ACL */ 1648 dump_uint8, /* ZFS plain file */ 1649 dump_zpldir, /* ZFS directory */ 1650 dump_zap, /* ZFS master node */ 1651 dump_zap, /* ZFS delete queue */ 1652 dump_uint8, /* zvol object */ 1653 dump_zap, /* zvol prop */ 1654 dump_uint8, /* other uint8[] */ 1655 dump_uint64, /* other uint64[] */ 1656 dump_zap, /* other ZAP */ 1657 dump_zap, /* persistent error log */ 1658 dump_uint8, /* SPA history */ 1659 dump_history_offsets, /* SPA history offsets */ 1660 dump_zap, /* Pool properties */ 1661 dump_zap, /* DSL permissions */ 1662 dump_acl, /* ZFS ACL */ 1663 dump_uint8, /* ZFS SYSACL */ 1664 dump_none, /* FUID nvlist */ 1665 dump_packed_nvlist, /* FUID nvlist size */ 1666 dump_zap, /* DSL dataset next clones */ 1667 dump_zap, /* DSL scrub queue */ 1668 dump_zap, /* ZFS user/group used */ 1669 dump_zap, /* ZFS user/group quota */ 1670 dump_zap, /* snapshot refcount tags */ 1671 dump_ddt_zap, /* DDT ZAP object */ 1672 dump_zap, /* DDT statistics */ 1673 dump_znode, /* SA object */ 1674 dump_zap, /* SA Master Node */ 1675 dump_sa_attrs, /* SA attribute registration */ 1676 dump_sa_layouts, /* SA attribute layouts */ 1677 dump_zap, /* DSL scrub translations */ 1678 dump_none, /* fake dedup BP */ 1679 dump_zap, /* deadlist */ 1680 dump_none, /* deadlist hdr */ 1681 dump_zap, /* dsl clones */ 1682 dump_none, /* bpobj subobjs */ 1683 dump_unknown, /* Unknown type, must be last */ 1684}; 1685 1686static void 1687dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1688{ 1689 dmu_buf_t *db = NULL; 1690 dmu_object_info_t doi; 1691 dnode_t *dn; 1692 void *bonus = NULL; 1693 size_t bsize = 0; 1694 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1695 char bonus_size[32]; 1696 char aux[50]; 1697 int error; 1698 1699 if (*print_header) { 1700 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1701 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1702 "%full", "type"); 1703 *print_header = 0; 1704 } 1705 1706 if (object == 0) { 1707 dn = DMU_META_DNODE(os); 1708 } else { 1709 error = dmu_bonus_hold(os, object, FTAG, &db); 1710 if (error) 1711 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1712 object, error); 1713 bonus = db->db_data; 1714 bsize = db->db_size; 1715 dn = DB_DNODE((dmu_buf_impl_t *)db); 1716 } 1717 dmu_object_info_from_dnode(dn, &doi); 1718 1719 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1720 zdb_nicenum(doi.doi_data_block_size, dblk); 1721 zdb_nicenum(doi.doi_max_offset, lsize); 1722 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1723 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1724 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1725 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1726 doi.doi_max_offset); 1727 1728 aux[0] = '\0'; 1729 1730 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1731 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1732 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1733 } 1734 1735 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1736 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1737 ZDB_COMPRESS_NAME(doi.doi_compress)); 1738 } 1739 1740 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1741 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1742 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1743 1744 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1745 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1746 "", "", "", "", "", bonus_size, "bonus", 1747 ZDB_OT_NAME(doi.doi_bonus_type)); 1748 } 1749 1750 if (verbosity >= 4) { 1751 (void) printf("\tdnode flags: %s%s%s\n", 1752 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1753 "USED_BYTES " : "", 1754 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1755 "USERUSED_ACCOUNTED " : "", 1756 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1757 "SPILL_BLKPTR" : ""); 1758 (void) printf("\tdnode maxblkid: %llu\n", 1759 (longlong_t)dn->dn_phys->dn_maxblkid); 1760 1761 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1762 bonus, bsize); 1763 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1764 *print_header = 1; 1765 } 1766 1767 if (verbosity >= 5) 1768 dump_indirect(dn); 1769 1770 if (verbosity >= 5) { 1771 /* 1772 * Report the list of segments that comprise the object. 1773 */ 1774 uint64_t start = 0; 1775 uint64_t end; 1776 uint64_t blkfill = 1; 1777 int minlvl = 1; 1778 1779 if (dn->dn_type == DMU_OT_DNODE) { 1780 minlvl = 0; 1781 blkfill = DNODES_PER_BLOCK; 1782 } 1783 1784 for (;;) { 1785 char segsize[32]; 1786 error = dnode_next_offset(dn, 1787 0, &start, minlvl, blkfill, 0); 1788 if (error) 1789 break; 1790 end = start; 1791 error = dnode_next_offset(dn, 1792 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1793 zdb_nicenum(end - start, segsize); 1794 (void) printf("\t\tsegment [%016llx, %016llx)" 1795 " size %5s\n", (u_longlong_t)start, 1796 (u_longlong_t)end, segsize); 1797 if (error) 1798 break; 1799 start = end; 1800 } 1801 } 1802 1803 if (db != NULL) 1804 dmu_buf_rele(db, FTAG); 1805} 1806 1807static char *objset_types[DMU_OST_NUMTYPES] = { 1808 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1809 1810static void 1811dump_dir(objset_t *os) 1812{ 1813 dmu_objset_stats_t dds; 1814 uint64_t object, object_count; 1815 uint64_t refdbytes, usedobjs, scratch; 1816 char numbuf[32]; 1817 char blkbuf[BP_SPRINTF_LEN + 20]; 1818 char osname[MAXNAMELEN]; 1819 char *type = "UNKNOWN"; 1820 int verbosity = dump_opt['d']; 1821 int print_header = 1; 1822 int i, error; 1823 1824 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1825 dmu_objset_fast_stat(os, &dds); 1826 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1827 1828 if (dds.dds_type < DMU_OST_NUMTYPES) 1829 type = objset_types[dds.dds_type]; 1830 1831 if (dds.dds_type == DMU_OST_META) { 1832 dds.dds_creation_txg = TXG_INITIAL; 1833 usedobjs = BP_GET_FILL(os->os_rootbp); 1834 refdbytes = os->os_spa->spa_dsl_pool-> 1835 dp_mos_dir->dd_phys->dd_used_bytes; 1836 } else { 1837 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1838 } 1839 1840 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 1841 1842 zdb_nicenum(refdbytes, numbuf); 1843 1844 if (verbosity >= 4) { 1845 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 1846 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 1847 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 1848 } else { 1849 blkbuf[0] = '\0'; 1850 } 1851 1852 dmu_objset_name(os, osname); 1853 1854 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1855 "%s, %llu objects%s\n", 1856 osname, type, (u_longlong_t)dmu_objset_id(os), 1857 (u_longlong_t)dds.dds_creation_txg, 1858 numbuf, (u_longlong_t)usedobjs, blkbuf); 1859 1860 if (zopt_objects != 0) { 1861 for (i = 0; i < zopt_objects; i++) 1862 dump_object(os, zopt_object[i], verbosity, 1863 &print_header); 1864 (void) printf("\n"); 1865 return; 1866 } 1867 1868 if (dump_opt['i'] != 0 || verbosity >= 2) 1869 dump_intent_log(dmu_objset_zil(os)); 1870 1871 if (dmu_objset_ds(os) != NULL) 1872 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1873 1874 if (verbosity < 2) 1875 return; 1876 1877 if (BP_IS_HOLE(os->os_rootbp)) 1878 return; 1879 1880 dump_object(os, 0, verbosity, &print_header); 1881 object_count = 0; 1882 if (DMU_USERUSED_DNODE(os) != NULL && 1883 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1884 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1885 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1886 } 1887 1888 object = 0; 1889 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1890 dump_object(os, object, verbosity, &print_header); 1891 object_count++; 1892 } 1893 1894 ASSERT3U(object_count, ==, usedobjs); 1895 1896 (void) printf("\n"); 1897 1898 if (error != ESRCH) { 1899 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1900 abort(); 1901 } 1902} 1903 1904static void 1905dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1906{ 1907 time_t timestamp = ub->ub_timestamp; 1908 1909 (void) printf(header ? header : ""); 1910 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1911 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1912 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1913 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1914 (void) printf("\ttimestamp = %llu UTC = %s", 1915 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1916 if (dump_opt['u'] >= 3) { 1917 char blkbuf[BP_SPRINTF_LEN]; 1918 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 1919 (void) printf("\trootbp = %s\n", blkbuf); 1920 } 1921 (void) printf(footer ? footer : ""); 1922} 1923 1924static void 1925dump_config(spa_t *spa) 1926{ 1927 dmu_buf_t *db; 1928 size_t nvsize = 0; 1929 int error = 0; 1930 1931 1932 error = dmu_bonus_hold(spa->spa_meta_objset, 1933 spa->spa_config_object, FTAG, &db); 1934 1935 if (error == 0) { 1936 nvsize = *(uint64_t *)db->db_data; 1937 dmu_buf_rele(db, FTAG); 1938 1939 (void) printf("\nMOS Configuration:\n"); 1940 dump_packed_nvlist(spa->spa_meta_objset, 1941 spa->spa_config_object, (void *)&nvsize, 1); 1942 } else { 1943 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1944 (u_longlong_t)spa->spa_config_object, error); 1945 } 1946} 1947 1948static void 1949dump_cachefile(const char *cachefile) 1950{ 1951 int fd; 1952 struct stat64 statbuf; 1953 char *buf; 1954 nvlist_t *config; 1955 1956 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1957 (void) printf("cannot open '%s': %s\n", cachefile, 1958 strerror(errno)); 1959 exit(1); 1960 } 1961 1962 if (fstat64(fd, &statbuf) != 0) { 1963 (void) printf("failed to stat '%s': %s\n", cachefile, 1964 strerror(errno)); 1965 exit(1); 1966 } 1967 1968 if ((buf = malloc(statbuf.st_size)) == NULL) { 1969 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1970 (u_longlong_t)statbuf.st_size); 1971 exit(1); 1972 } 1973 1974 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1975 (void) fprintf(stderr, "failed to read %llu bytes\n", 1976 (u_longlong_t)statbuf.st_size); 1977 exit(1); 1978 } 1979 1980 (void) close(fd); 1981 1982 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1983 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1984 exit(1); 1985 } 1986 1987 free(buf); 1988 1989 dump_nvlist(config, 0); 1990 1991 nvlist_free(config); 1992} 1993 1994#define ZDB_MAX_UB_HEADER_SIZE 32 1995 1996static void 1997dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1998{ 1999 vdev_t vd; 2000 vdev_t *vdp = &vd; 2001 char header[ZDB_MAX_UB_HEADER_SIZE]; 2002 2003 vd.vdev_ashift = ashift; 2004 vdp->vdev_top = vdp; 2005 2006 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2007 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2008 uberblock_t *ub = (void *)((char *)lbl + uoff); 2009 2010 if (uberblock_verify(ub)) 2011 continue; 2012 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2013 "Uberblock[%d]\n", i); 2014 dump_uberblock(ub, header, ""); 2015 } 2016} 2017 2018static void 2019dump_label(const char *dev) 2020{ 2021 int fd; 2022 vdev_label_t label; 2023 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 2024 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2025 struct stat64 statbuf; 2026 uint64_t psize, ashift; 2027 int len = strlen(dev) + 1; 2028 2029 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 2030 len++; 2031 path = malloc(len); 2032 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 2033 } else { 2034 path = strdup(dev); 2035 } 2036 2037 if ((fd = open64(path, O_RDONLY)) < 0) { 2038 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2039 free(path); 2040 exit(1); 2041 } 2042 2043 if (fstat64(fd, &statbuf) != 0) { 2044 (void) printf("failed to stat '%s': %s\n", path, 2045 strerror(errno)); 2046 free(path); 2047 (void) close(fd); 2048 exit(1); 2049 } 2050 2051 if (S_ISBLK(statbuf.st_mode)) { 2052 (void) printf("cannot use '%s': character device required\n", 2053 path); 2054 free(path); 2055 (void) close(fd); 2056 exit(1); 2057 } 2058 2059 psize = statbuf.st_size; 2060 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2061 2062 for (int l = 0; l < VDEV_LABELS; l++) { 2063 nvlist_t *config = NULL; 2064 2065 (void) printf("--------------------------------------------\n"); 2066 (void) printf("LABEL %d\n", l); 2067 (void) printf("--------------------------------------------\n"); 2068 2069 if (pread64(fd, &label, sizeof (label), 2070 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2071 (void) printf("failed to read label %d\n", l); 2072 continue; 2073 } 2074 2075 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2076 (void) printf("failed to unpack label %d\n", l); 2077 ashift = SPA_MINBLOCKSHIFT; 2078 } else { 2079 nvlist_t *vdev_tree = NULL; 2080 2081 dump_nvlist(config, 4); 2082 if ((nvlist_lookup_nvlist(config, 2083 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2084 (nvlist_lookup_uint64(vdev_tree, 2085 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2086 ashift = SPA_MINBLOCKSHIFT; 2087 nvlist_free(config); 2088 } 2089 if (dump_opt['u']) 2090 dump_label_uberblocks(&label, ashift); 2091 } 2092 2093 free(path); 2094 (void) close(fd); 2095} 2096 2097/*ARGSUSED*/ 2098static int 2099dump_one_dir(const char *dsname, void *arg) 2100{ 2101 int error; 2102 objset_t *os; 2103 2104 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2105 if (error) { 2106 (void) printf("Could not open %s, error %d\n", dsname, error); 2107 return (0); 2108 } 2109 dump_dir(os); 2110 dmu_objset_disown(os, FTAG); 2111 fuid_table_destroy(); 2112 sa_loaded = B_FALSE; 2113 return (0); 2114} 2115 2116/* 2117 * Block statistics. 2118 */ 2119#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2120typedef struct zdb_blkstats { 2121 uint64_t zb_asize; 2122 uint64_t zb_lsize; 2123 uint64_t zb_psize; 2124 uint64_t zb_count; 2125 uint64_t zb_gangs; 2126 uint64_t zb_ditto_samevdev; 2127 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2128} zdb_blkstats_t; 2129 2130/* 2131 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2132 */ 2133#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2134#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2135#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2136#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2137 2138static char *zdb_ot_extname[] = { 2139 "deferred free", 2140 "dedup ditto", 2141 "other", 2142 "Total", 2143}; 2144 2145#define ZB_TOTAL DN_MAX_LEVELS 2146 2147typedef struct zdb_cb { 2148 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2149 uint64_t zcb_dedup_asize; 2150 uint64_t zcb_dedup_blocks; 2151 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2152 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2153 [BPE_PAYLOAD_SIZE]; 2154 uint64_t zcb_start; 2155 uint64_t zcb_lastprint; 2156 uint64_t zcb_totalasize; 2157 uint64_t zcb_errors[256]; 2158 int zcb_readfails; 2159 int zcb_haderrors; 2160 spa_t *zcb_spa; 2161} zdb_cb_t; 2162 2163static void 2164zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2165 dmu_object_type_t type) 2166{ 2167 uint64_t refcnt = 0; 2168 2169 ASSERT(type < ZDB_OT_TOTAL); 2170 2171 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2172 return; 2173 2174 for (int i = 0; i < 4; i++) { 2175 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2176 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2177 int equal; 2178 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2179 2180 zb->zb_asize += BP_GET_ASIZE(bp); 2181 zb->zb_lsize += BP_GET_LSIZE(bp); 2182 zb->zb_psize += BP_GET_PSIZE(bp); 2183 zb->zb_count++; 2184 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2185 2186 zb->zb_gangs += BP_COUNT_GANG(bp); 2187 2188 switch (BP_GET_NDVAS(bp)) { 2189 case 2: 2190 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2191 DVA_GET_VDEV(&bp->blk_dva[1])) 2192 zb->zb_ditto_samevdev++; 2193 break; 2194 case 3: 2195 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2196 DVA_GET_VDEV(&bp->blk_dva[1])) + 2197 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2198 DVA_GET_VDEV(&bp->blk_dva[2])) + 2199 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2200 DVA_GET_VDEV(&bp->blk_dva[2])); 2201 if (equal != 0) 2202 zb->zb_ditto_samevdev++; 2203 break; 2204 } 2205 2206 } 2207 2208 if (BP_IS_EMBEDDED(bp)) { 2209 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2210 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2211 [BPE_GET_PSIZE(bp)]++; 2212 return; 2213 } 2214 2215 if (dump_opt['L']) 2216 return; 2217 2218 if (BP_GET_DEDUP(bp)) { 2219 ddt_t *ddt; 2220 ddt_entry_t *dde; 2221 2222 ddt = ddt_select(zcb->zcb_spa, bp); 2223 ddt_enter(ddt); 2224 dde = ddt_lookup(ddt, bp, B_FALSE); 2225 2226 if (dde == NULL) { 2227 refcnt = 0; 2228 } else { 2229 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2230 ddt_phys_decref(ddp); 2231 refcnt = ddp->ddp_refcnt; 2232 if (ddt_phys_total_refcnt(dde) == 0) 2233 ddt_remove(ddt, dde); 2234 } 2235 ddt_exit(ddt); 2236 } 2237 2238 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2239 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2240 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2241} 2242 2243/* ARGSUSED */ 2244static void 2245zdb_blkptr_done(zio_t *zio) 2246{ 2247 spa_t *spa = zio->io_spa; 2248 blkptr_t *bp = zio->io_bp; 2249 int ioerr = zio->io_error; 2250 zdb_cb_t *zcb = zio->io_private; 2251 zbookmark_t *zb = &zio->io_bookmark; 2252 2253 zio_data_buf_free(zio->io_data, zio->io_size); 2254 2255 mutex_enter(&spa->spa_scrub_lock); 2256 spa->spa_scrub_inflight--; 2257 cv_broadcast(&spa->spa_scrub_io_cv); 2258 2259 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2260 char blkbuf[BP_SPRINTF_LEN]; 2261 2262 zcb->zcb_haderrors = 1; 2263 zcb->zcb_errors[ioerr]++; 2264 2265 if (dump_opt['b'] >= 2) 2266 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2267 else 2268 blkbuf[0] = '\0'; 2269 2270 (void) printf("zdb_blkptr_cb: " 2271 "Got error %d reading " 2272 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2273 ioerr, 2274 (u_longlong_t)zb->zb_objset, 2275 (u_longlong_t)zb->zb_object, 2276 (u_longlong_t)zb->zb_level, 2277 (u_longlong_t)zb->zb_blkid, 2278 blkbuf); 2279 } 2280 mutex_exit(&spa->spa_scrub_lock); 2281} 2282 2283/* ARGSUSED */ 2284static int 2285zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2286 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2287{ 2288 zdb_cb_t *zcb = arg; 2289 dmu_object_type_t type; 2290 boolean_t is_metadata; 2291 2292 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2293 char blkbuf[BP_SPRINTF_LEN]; 2294 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2295 (void) printf("objset %llu object %llu " 2296 "level %lld offset 0x%llx %s\n", 2297 (u_longlong_t)zb->zb_objset, 2298 (u_longlong_t)zb->zb_object, 2299 (longlong_t)zb->zb_level, 2300 (u_longlong_t)blkid2offset(dnp, bp, zb), 2301 blkbuf); 2302 } 2303 2304 if (BP_IS_HOLE(bp)) 2305 return (0); 2306 2307 type = BP_GET_TYPE(bp); 2308 2309 zdb_count_block(zcb, zilog, bp, 2310 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2311 2312 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2313 2314 if (!BP_IS_EMBEDDED(bp) && 2315 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2316 size_t size = BP_GET_PSIZE(bp); 2317 void *data = zio_data_buf_alloc(size); 2318 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2319 2320 /* If it's an intent log block, failure is expected. */ 2321 if (zb->zb_level == ZB_ZIL_LEVEL) 2322 flags |= ZIO_FLAG_SPECULATIVE; 2323 2324 mutex_enter(&spa->spa_scrub_lock); 2325 while (spa->spa_scrub_inflight > max_inflight) 2326 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2327 spa->spa_scrub_inflight++; 2328 mutex_exit(&spa->spa_scrub_lock); 2329 2330 zio_nowait(zio_read(NULL, spa, bp, data, size, 2331 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2332 } 2333 2334 zcb->zcb_readfails = 0; 2335 2336 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2337 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2338 uint64_t now = gethrtime(); 2339 char buf[10]; 2340 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2341 int kb_per_sec = 2342 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2343 int sec_remaining = 2344 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2345 2346 zfs_nicenum(bytes, buf, sizeof (buf)); 2347 (void) fprintf(stderr, 2348 "\r%5s completed (%4dMB/s) " 2349 "estimated time remaining: %uhr %02umin %02usec ", 2350 buf, kb_per_sec / 1024, 2351 sec_remaining / 60 / 60, 2352 sec_remaining / 60 % 60, 2353 sec_remaining % 60); 2354 2355 zcb->zcb_lastprint = now; 2356 } 2357 2358 return (0); 2359} 2360 2361static void 2362zdb_leak(void *arg, uint64_t start, uint64_t size) 2363{ 2364 vdev_t *vd = arg; 2365 2366 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2367 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2368} 2369 2370static metaslab_ops_t zdb_metaslab_ops = { 2371 NULL, /* alloc */ 2372 NULL /* fragmented */ 2373}; 2374 2375static void 2376zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2377{ 2378 ddt_bookmark_t ddb = { 0 }; 2379 ddt_entry_t dde; 2380 int error; 2381 2382 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2383 blkptr_t blk; 2384 ddt_phys_t *ddp = dde.dde_phys; 2385 2386 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2387 return; 2388 2389 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2390 2391 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2392 if (ddp->ddp_phys_birth == 0) 2393 continue; 2394 ddt_bp_create(ddb.ddb_checksum, 2395 &dde.dde_key, ddp, &blk); 2396 if (p == DDT_PHYS_DITTO) { 2397 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2398 } else { 2399 zcb->zcb_dedup_asize += 2400 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2401 zcb->zcb_dedup_blocks++; 2402 } 2403 } 2404 if (!dump_opt['L']) { 2405 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2406 ddt_enter(ddt); 2407 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2408 ddt_exit(ddt); 2409 } 2410 } 2411 2412 ASSERT(error == ENOENT); 2413} 2414 2415static void 2416zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2417{ 2418 zcb->zcb_spa = spa; 2419 2420 if (!dump_opt['L']) { 2421 vdev_t *rvd = spa->spa_root_vdev; 2422 for (int c = 0; c < rvd->vdev_children; c++) { 2423 vdev_t *vd = rvd->vdev_child[c]; 2424 for (int m = 0; m < vd->vdev_ms_count; m++) { 2425 metaslab_t *msp = vd->vdev_ms[m]; 2426 mutex_enter(&msp->ms_lock); 2427 metaslab_unload(msp); 2428 2429 /* 2430 * For leak detection, we overload the metaslab 2431 * ms_tree to contain allocated segments 2432 * instead of free segments. As a result, 2433 * we can't use the normal metaslab_load/unload 2434 * interfaces. 2435 */ 2436 if (msp->ms_sm != NULL) { 2437 msp->ms_ops = &zdb_metaslab_ops; 2438 VERIFY0(space_map_load(msp->ms_sm, 2439 msp->ms_tree, SM_ALLOC)); 2440 msp->ms_loaded = B_TRUE; 2441 } 2442 mutex_exit(&msp->ms_lock); 2443 } 2444 } 2445 } 2446 2447 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2448 2449 zdb_ddt_leak_init(spa, zcb); 2450 2451 spa_config_exit(spa, SCL_CONFIG, FTAG); 2452} 2453 2454static void 2455zdb_leak_fini(spa_t *spa) 2456{ 2457 if (!dump_opt['L']) { 2458 vdev_t *rvd = spa->spa_root_vdev; 2459 for (int c = 0; c < rvd->vdev_children; c++) { 2460 vdev_t *vd = rvd->vdev_child[c]; 2461 for (int m = 0; m < vd->vdev_ms_count; m++) { 2462 metaslab_t *msp = vd->vdev_ms[m]; 2463 mutex_enter(&msp->ms_lock); 2464 2465 /* 2466 * The ms_tree has been overloaded to 2467 * contain allocated segments. Now that we 2468 * finished traversing all blocks, any 2469 * block that remains in the ms_tree 2470 * represents an allocated block that we 2471 * did not claim during the traversal. 2472 * Claimed blocks would have been removed 2473 * from the ms_tree. 2474 */ 2475 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2476 msp->ms_loaded = B_FALSE; 2477 2478 mutex_exit(&msp->ms_lock); 2479 } 2480 } 2481 } 2482} 2483 2484/* ARGSUSED */ 2485static int 2486count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2487{ 2488 zdb_cb_t *zcb = arg; 2489 2490 if (dump_opt['b'] >= 5) { 2491 char blkbuf[BP_SPRINTF_LEN]; 2492 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2493 (void) printf("[%s] %s\n", 2494 "deferred free", blkbuf); 2495 } 2496 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2497 return (0); 2498} 2499 2500static int 2501dump_block_stats(spa_t *spa) 2502{ 2503 zdb_cb_t zcb = { 0 }; 2504 zdb_blkstats_t *zb, *tzb; 2505 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2506 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2507 boolean_t leaks = B_FALSE; 2508 2509 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2510 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2511 (dump_opt['c'] == 1) ? "metadata " : "", 2512 dump_opt['c'] ? "checksums " : "", 2513 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2514 !dump_opt['L'] ? "nothing leaked " : ""); 2515 2516 /* 2517 * Load all space maps as SM_ALLOC maps, then traverse the pool 2518 * claiming each block we discover. If the pool is perfectly 2519 * consistent, the space maps will be empty when we're done. 2520 * Anything left over is a leak; any block we can't claim (because 2521 * it's not part of any space map) is a double allocation, 2522 * reference to a freed block, or an unclaimed log block. 2523 */ 2524 zdb_leak_init(spa, &zcb); 2525 2526 /* 2527 * If there's a deferred-free bplist, process that first. 2528 */ 2529 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2530 count_block_cb, &zcb, NULL); 2531 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2532 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2533 count_block_cb, &zcb, NULL); 2534 } 2535 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2536 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2537 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2538 &zcb, NULL)); 2539 } 2540 2541 if (dump_opt['c'] > 1) 2542 flags |= TRAVERSE_PREFETCH_DATA; 2543 2544 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2545 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2546 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2547 2548 /* 2549 * If we've traversed the data blocks then we need to wait for those 2550 * I/Os to complete. We leverage "The Godfather" zio to wait on 2551 * all async I/Os to complete. 2552 */ 2553 if (dump_opt['c']) { 2554 (void) zio_wait(spa->spa_async_zio_root); 2555 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2556 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2557 ZIO_FLAG_GODFATHER); 2558 } 2559 2560 if (zcb.zcb_haderrors) { 2561 (void) printf("\nError counts:\n\n"); 2562 (void) printf("\t%5s %s\n", "errno", "count"); 2563 for (int e = 0; e < 256; e++) { 2564 if (zcb.zcb_errors[e] != 0) { 2565 (void) printf("\t%5d %llu\n", 2566 e, (u_longlong_t)zcb.zcb_errors[e]); 2567 } 2568 } 2569 } 2570 2571 /* 2572 * Report any leaked segments. 2573 */ 2574 zdb_leak_fini(spa); 2575 2576 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2577 2578 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2579 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2580 2581 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2582 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2583 2584 if (total_found == total_alloc) { 2585 if (!dump_opt['L']) 2586 (void) printf("\n\tNo leaks (block sum matches space" 2587 " maps exactly)\n"); 2588 } else { 2589 (void) printf("block traversal size %llu != alloc %llu " 2590 "(%s %lld)\n", 2591 (u_longlong_t)total_found, 2592 (u_longlong_t)total_alloc, 2593 (dump_opt['L']) ? "unreachable" : "leaked", 2594 (longlong_t)(total_alloc - total_found)); 2595 leaks = B_TRUE; 2596 } 2597 2598 if (tzb->zb_count == 0) 2599 return (2); 2600 2601 (void) printf("\n"); 2602 (void) printf("\tbp count: %10llu\n", 2603 (u_longlong_t)tzb->zb_count); 2604 (void) printf("\tganged count: %10llu\n", 2605 (longlong_t)tzb->zb_gangs); 2606 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2607 (u_longlong_t)tzb->zb_lsize, 2608 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2609 (void) printf("\tbp physical: %10llu avg:" 2610 " %6llu compression: %6.2f\n", 2611 (u_longlong_t)tzb->zb_psize, 2612 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2613 (double)tzb->zb_lsize / tzb->zb_psize); 2614 (void) printf("\tbp allocated: %10llu avg:" 2615 " %6llu compression: %6.2f\n", 2616 (u_longlong_t)tzb->zb_asize, 2617 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2618 (double)tzb->zb_lsize / tzb->zb_asize); 2619 (void) printf("\tbp deduped: %10llu ref>1:" 2620 " %6llu deduplication: %6.2f\n", 2621 (u_longlong_t)zcb.zcb_dedup_asize, 2622 (u_longlong_t)zcb.zcb_dedup_blocks, 2623 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2624 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2625 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2626 2627 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2628 if (zcb.zcb_embedded_blocks[i] == 0) 2629 continue; 2630 (void) printf("\n"); 2631 (void) printf("\tadditional, non-pointer bps of type %u: " 2632 "%10llu\n", 2633 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2634 2635 if (dump_opt['b'] >= 3) { 2636 (void) printf("\t number of (compressed) bytes: " 2637 "number of bps\n"); 2638 dump_histogram(zcb.zcb_embedded_histogram[i], 2639 sizeof (zcb.zcb_embedded_histogram[i]) / 2640 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2641 } 2642 } 2643 2644 if (tzb->zb_ditto_samevdev != 0) { 2645 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2646 (longlong_t)tzb->zb_ditto_samevdev); 2647 } 2648 2649 if (dump_opt['b'] >= 2) { 2650 int l, t, level; 2651 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2652 "\t avg\t comp\t%%Total\tType\n"); 2653 2654 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2655 char csize[32], lsize[32], psize[32], asize[32]; 2656 char avg[32], gang[32]; 2657 char *typename; 2658 2659 if (t < DMU_OT_NUMTYPES) 2660 typename = dmu_ot[t].ot_name; 2661 else 2662 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2663 2664 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2665 (void) printf("%6s\t%5s\t%5s\t%5s" 2666 "\t%5s\t%5s\t%6s\t%s\n", 2667 "-", 2668 "-", 2669 "-", 2670 "-", 2671 "-", 2672 "-", 2673 "-", 2674 typename); 2675 continue; 2676 } 2677 2678 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2679 level = (l == -1 ? ZB_TOTAL : l); 2680 zb = &zcb.zcb_type[level][t]; 2681 2682 if (zb->zb_asize == 0) 2683 continue; 2684 2685 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2686 continue; 2687 2688 if (level == 0 && zb->zb_asize == 2689 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2690 continue; 2691 2692 zdb_nicenum(zb->zb_count, csize); 2693 zdb_nicenum(zb->zb_lsize, lsize); 2694 zdb_nicenum(zb->zb_psize, psize); 2695 zdb_nicenum(zb->zb_asize, asize); 2696 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2697 zdb_nicenum(zb->zb_gangs, gang); 2698 2699 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2700 "\t%5.2f\t%6.2f\t", 2701 csize, lsize, psize, asize, avg, 2702 (double)zb->zb_lsize / zb->zb_psize, 2703 100.0 * zb->zb_asize / tzb->zb_asize); 2704 2705 if (level == ZB_TOTAL) 2706 (void) printf("%s\n", typename); 2707 else 2708 (void) printf(" L%d %s\n", 2709 level, typename); 2710 2711 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2712 (void) printf("\t number of ganged " 2713 "blocks: %s\n", gang); 2714 } 2715 2716 if (dump_opt['b'] >= 4) { 2717 (void) printf("psize " 2718 "(in 512-byte sectors): " 2719 "number of blocks\n"); 2720 dump_histogram(zb->zb_psize_histogram, 2721 PSIZE_HISTO_SIZE, 0); 2722 } 2723 } 2724 } 2725 } 2726 2727 (void) printf("\n"); 2728 2729 if (leaks) 2730 return (2); 2731 2732 if (zcb.zcb_haderrors) 2733 return (3); 2734 2735 return (0); 2736} 2737 2738typedef struct zdb_ddt_entry { 2739 ddt_key_t zdde_key; 2740 uint64_t zdde_ref_blocks; 2741 uint64_t zdde_ref_lsize; 2742 uint64_t zdde_ref_psize; 2743 uint64_t zdde_ref_dsize; 2744 avl_node_t zdde_node; 2745} zdb_ddt_entry_t; 2746 2747/* ARGSUSED */ 2748static int 2749zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2750 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2751{ 2752 avl_tree_t *t = arg; 2753 avl_index_t where; 2754 zdb_ddt_entry_t *zdde, zdde_search; 2755 2756 if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 2757 return (0); 2758 2759 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2760 (void) printf("traversing objset %llu, %llu objects, " 2761 "%lu blocks so far\n", 2762 (u_longlong_t)zb->zb_objset, 2763 (u_longlong_t)BP_GET_FILL(bp), 2764 avl_numnodes(t)); 2765 } 2766 2767 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2768 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2769 return (0); 2770 2771 ddt_key_fill(&zdde_search.zdde_key, bp); 2772 2773 zdde = avl_find(t, &zdde_search, &where); 2774 2775 if (zdde == NULL) { 2776 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2777 zdde->zdde_key = zdde_search.zdde_key; 2778 avl_insert(t, zdde, where); 2779 } 2780 2781 zdde->zdde_ref_blocks += 1; 2782 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2783 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2784 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2785 2786 return (0); 2787} 2788 2789static void 2790dump_simulated_ddt(spa_t *spa) 2791{ 2792 avl_tree_t t; 2793 void *cookie = NULL; 2794 zdb_ddt_entry_t *zdde; 2795 ddt_histogram_t ddh_total = { 0 }; 2796 ddt_stat_t dds_total = { 0 }; 2797 2798 avl_create(&t, ddt_entry_compare, 2799 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2800 2801 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2802 2803 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2804 zdb_ddt_add_cb, &t); 2805 2806 spa_config_exit(spa, SCL_CONFIG, FTAG); 2807 2808 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2809 ddt_stat_t dds; 2810 uint64_t refcnt = zdde->zdde_ref_blocks; 2811 ASSERT(refcnt != 0); 2812 2813 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2814 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2815 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2816 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2817 2818 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2819 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2820 dds.dds_ref_psize = zdde->zdde_ref_psize; 2821 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2822 2823 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 2824 &dds, 0); 2825 2826 umem_free(zdde, sizeof (*zdde)); 2827 } 2828 2829 avl_destroy(&t); 2830 2831 ddt_histogram_stat(&dds_total, &ddh_total); 2832 2833 (void) printf("Simulated DDT histogram:\n"); 2834 2835 zpool_dump_ddt(&dds_total, &ddh_total); 2836 2837 dump_dedup_ratio(&dds_total); 2838} 2839 2840static void 2841dump_zpool(spa_t *spa) 2842{ 2843 dsl_pool_t *dp = spa_get_dsl(spa); 2844 int rc = 0; 2845 2846 if (dump_opt['S']) { 2847 dump_simulated_ddt(spa); 2848 return; 2849 } 2850 2851 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2852 (void) printf("\nCached configuration:\n"); 2853 dump_nvlist(spa->spa_config, 8); 2854 } 2855 2856 if (dump_opt['C']) 2857 dump_config(spa); 2858 2859 if (dump_opt['u']) 2860 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2861 2862 if (dump_opt['D']) 2863 dump_all_ddts(spa); 2864 2865 if (dump_opt['d'] > 2 || dump_opt['m']) 2866 dump_metaslabs(spa); 2867 2868 if (dump_opt['d'] || dump_opt['i']) { 2869 dump_dir(dp->dp_meta_objset); 2870 if (dump_opt['d'] >= 3) { 2871 dump_bpobj(&spa->spa_deferred_bpobj, 2872 "Deferred frees", 0); 2873 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2874 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2875 "Pool snapshot frees", 0); 2876 } 2877 2878 if (spa_feature_is_active(spa, 2879 SPA_FEATURE_ASYNC_DESTROY)) { 2880 dump_bptree(spa->spa_meta_objset, 2881 spa->spa_dsl_pool->dp_bptree_obj, 2882 "Pool dataset frees"); 2883 } 2884 dump_dtl(spa->spa_root_vdev, 0); 2885 } 2886 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2887 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2888 } 2889 if (dump_opt['b'] || dump_opt['c']) 2890 rc = dump_block_stats(spa); 2891 2892 if (rc == 0) 2893 rc = verify_spacemap_refcounts(spa); 2894 2895 if (dump_opt['s']) 2896 show_pool_stats(spa); 2897 2898 if (dump_opt['h']) 2899 dump_history(spa); 2900 2901 if (rc != 0) 2902 exit(rc); 2903} 2904 2905#define ZDB_FLAG_CHECKSUM 0x0001 2906#define ZDB_FLAG_DECOMPRESS 0x0002 2907#define ZDB_FLAG_BSWAP 0x0004 2908#define ZDB_FLAG_GBH 0x0008 2909#define ZDB_FLAG_INDIRECT 0x0010 2910#define ZDB_FLAG_PHYS 0x0020 2911#define ZDB_FLAG_RAW 0x0040 2912#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2913 2914int flagbits[256]; 2915 2916static void 2917zdb_print_blkptr(blkptr_t *bp, int flags) 2918{ 2919 char blkbuf[BP_SPRINTF_LEN]; 2920 2921 if (flags & ZDB_FLAG_BSWAP) 2922 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2923 2924 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2925 (void) printf("%s\n", blkbuf); 2926} 2927 2928static void 2929zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2930{ 2931 int i; 2932 2933 for (i = 0; i < nbps; i++) 2934 zdb_print_blkptr(&bp[i], flags); 2935} 2936 2937static void 2938zdb_dump_gbh(void *buf, int flags) 2939{ 2940 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2941} 2942 2943static void 2944zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2945{ 2946 if (flags & ZDB_FLAG_BSWAP) 2947 byteswap_uint64_array(buf, size); 2948 (void) write(1, buf, size); 2949} 2950 2951static void 2952zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2953{ 2954 uint64_t *d = (uint64_t *)buf; 2955 int nwords = size / sizeof (uint64_t); 2956 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2957 int i, j; 2958 char *hdr, *c; 2959 2960 2961 if (do_bswap) 2962 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2963 else 2964 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2965 2966 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2967 2968 for (i = 0; i < nwords; i += 2) { 2969 (void) printf("%06llx: %016llx %016llx ", 2970 (u_longlong_t)(i * sizeof (uint64_t)), 2971 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2972 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2973 2974 c = (char *)&d[i]; 2975 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2976 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2977 (void) printf("\n"); 2978 } 2979} 2980 2981/* 2982 * There are two acceptable formats: 2983 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2984 * child[.child]* - For example: 0.1.1 2985 * 2986 * The second form can be used to specify arbitrary vdevs anywhere 2987 * in the heirarchy. For example, in a pool with a mirror of 2988 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2989 */ 2990static vdev_t * 2991zdb_vdev_lookup(vdev_t *vdev, char *path) 2992{ 2993 char *s, *p, *q; 2994 int i; 2995 2996 if (vdev == NULL) 2997 return (NULL); 2998 2999 /* First, assume the x.x.x.x format */ 3000 i = (int)strtoul(path, &s, 10); 3001 if (s == path || (s && *s != '.' && *s != '\0')) 3002 goto name; 3003 if (i < 0 || i >= vdev->vdev_children) 3004 return (NULL); 3005 3006 vdev = vdev->vdev_child[i]; 3007 if (*s == '\0') 3008 return (vdev); 3009 return (zdb_vdev_lookup(vdev, s+1)); 3010 3011name: 3012 for (i = 0; i < vdev->vdev_children; i++) { 3013 vdev_t *vc = vdev->vdev_child[i]; 3014 3015 if (vc->vdev_path == NULL) { 3016 vc = zdb_vdev_lookup(vc, path); 3017 if (vc == NULL) 3018 continue; 3019 else 3020 return (vc); 3021 } 3022 3023 p = strrchr(vc->vdev_path, '/'); 3024 p = p ? p + 1 : vc->vdev_path; 3025 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3026 3027 if (strcmp(vc->vdev_path, path) == 0) 3028 return (vc); 3029 if (strcmp(p, path) == 0) 3030 return (vc); 3031 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3032 return (vc); 3033 } 3034 3035 return (NULL); 3036} 3037 3038/* 3039 * Read a block from a pool and print it out. The syntax of the 3040 * block descriptor is: 3041 * 3042 * pool:vdev_specifier:offset:size[:flags] 3043 * 3044 * pool - The name of the pool you wish to read from 3045 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3046 * offset - offset, in hex, in bytes 3047 * size - Amount of data to read, in hex, in bytes 3048 * flags - A string of characters specifying options 3049 * b: Decode a blkptr at given offset within block 3050 * *c: Calculate and display checksums 3051 * d: Decompress data before dumping 3052 * e: Byteswap data before dumping 3053 * g: Display data as a gang block header 3054 * i: Display as an indirect block 3055 * p: Do I/O to physical offset 3056 * r: Dump raw data to stdout 3057 * 3058 * * = not yet implemented 3059 */ 3060static void 3061zdb_read_block(char *thing, spa_t *spa) 3062{ 3063 blkptr_t blk, *bp = &blk; 3064 dva_t *dva = bp->blk_dva; 3065 int flags = 0; 3066 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3067 zio_t *zio; 3068 vdev_t *vd; 3069 void *pbuf, *lbuf, *buf; 3070 char *s, *p, *dup, *vdev, *flagstr; 3071 int i, error; 3072 3073 dup = strdup(thing); 3074 s = strtok(dup, ":"); 3075 vdev = s ? s : ""; 3076 s = strtok(NULL, ":"); 3077 offset = strtoull(s ? s : "", NULL, 16); 3078 s = strtok(NULL, ":"); 3079 size = strtoull(s ? s : "", NULL, 16); 3080 s = strtok(NULL, ":"); 3081 flagstr = s ? s : ""; 3082 3083 s = NULL; 3084 if (size == 0) 3085 s = "size must not be zero"; 3086 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3087 s = "size must be a multiple of sector size"; 3088 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3089 s = "offset must be a multiple of sector size"; 3090 if (s) { 3091 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3092 free(dup); 3093 return; 3094 } 3095 3096 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3097 for (i = 0; flagstr[i]; i++) { 3098 int bit = flagbits[(uchar_t)flagstr[i]]; 3099 3100 if (bit == 0) { 3101 (void) printf("***Invalid flag: %c\n", 3102 flagstr[i]); 3103 continue; 3104 } 3105 flags |= bit; 3106 3107 /* If it's not something with an argument, keep going */ 3108 if ((bit & (ZDB_FLAG_CHECKSUM | 3109 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3110 continue; 3111 3112 p = &flagstr[i + 1]; 3113 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3114 blkptr_offset = strtoull(p, &p, 16); 3115 if (*p != ':' && *p != '\0') { 3116 (void) printf("***Invalid flag arg: '%s'\n", s); 3117 free(dup); 3118 return; 3119 } 3120 i += p - &flagstr[i + 1]; /* skip over the number */ 3121 } 3122 } 3123 3124 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3125 if (vd == NULL) { 3126 (void) printf("***Invalid vdev: %s\n", vdev); 3127 free(dup); 3128 return; 3129 } else { 3130 if (vd->vdev_path) 3131 (void) fprintf(stderr, "Found vdev: %s\n", 3132 vd->vdev_path); 3133 else 3134 (void) fprintf(stderr, "Found vdev type: %s\n", 3135 vd->vdev_ops->vdev_op_type); 3136 } 3137 3138 psize = size; 3139 lsize = size; 3140 3141 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3142 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3143 3144 BP_ZERO(bp); 3145 3146 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3147 DVA_SET_OFFSET(&dva[0], offset); 3148 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3149 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3150 3151 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3152 3153 BP_SET_LSIZE(bp, lsize); 3154 BP_SET_PSIZE(bp, psize); 3155 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3156 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3157 BP_SET_TYPE(bp, DMU_OT_NONE); 3158 BP_SET_LEVEL(bp, 0); 3159 BP_SET_DEDUP(bp, 0); 3160 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3161 3162 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3163 zio = zio_root(spa, NULL, NULL, 0); 3164 3165 if (vd == vd->vdev_top) { 3166 /* 3167 * Treat this as a normal block read. 3168 */ 3169 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3170 ZIO_PRIORITY_SYNC_READ, 3171 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3172 } else { 3173 /* 3174 * Treat this as a vdev child I/O. 3175 */ 3176 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3177 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3178 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3179 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3180 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3181 } 3182 3183 error = zio_wait(zio); 3184 spa_config_exit(spa, SCL_STATE, FTAG); 3185 3186 if (error) { 3187 (void) printf("Read of %s failed, error: %d\n", thing, error); 3188 goto out; 3189 } 3190 3191 if (flags & ZDB_FLAG_DECOMPRESS) { 3192 /* 3193 * We don't know how the data was compressed, so just try 3194 * every decompress function at every inflated blocksize. 3195 */ 3196 enum zio_compress c; 3197 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3198 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3199 3200 bcopy(pbuf, pbuf2, psize); 3201 3202 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3203 SPA_MAXBLOCKSIZE - psize) == 0); 3204 3205 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3206 SPA_MAXBLOCKSIZE - psize) == 0); 3207 3208 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3209 lsize -= SPA_MINBLOCKSIZE) { 3210 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3211 if (zio_decompress_data(c, pbuf, lbuf, 3212 psize, lsize) == 0 && 3213 zio_decompress_data(c, pbuf2, lbuf2, 3214 psize, lsize) == 0 && 3215 bcmp(lbuf, lbuf2, lsize) == 0) 3216 break; 3217 } 3218 if (c != ZIO_COMPRESS_FUNCTIONS) 3219 break; 3220 lsize -= SPA_MINBLOCKSIZE; 3221 } 3222 3223 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3224 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3225 3226 if (lsize <= psize) { 3227 (void) printf("Decompress of %s failed\n", thing); 3228 goto out; 3229 } 3230 buf = lbuf; 3231 size = lsize; 3232 } else { 3233 buf = pbuf; 3234 size = psize; 3235 } 3236 3237 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3238 zdb_print_blkptr((blkptr_t *)(void *) 3239 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3240 else if (flags & ZDB_FLAG_RAW) 3241 zdb_dump_block_raw(buf, size, flags); 3242 else if (flags & ZDB_FLAG_INDIRECT) 3243 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3244 flags); 3245 else if (flags & ZDB_FLAG_GBH) 3246 zdb_dump_gbh(buf, flags); 3247 else 3248 zdb_dump_block(thing, buf, size, flags); 3249 3250out: 3251 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3252 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3253 free(dup); 3254} 3255 3256static boolean_t 3257pool_match(nvlist_t *cfg, char *tgt) 3258{ 3259 uint64_t v, guid = strtoull(tgt, NULL, 0); 3260 char *s; 3261 3262 if (guid != 0) { 3263 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3264 return (v == guid); 3265 } else { 3266 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3267 return (strcmp(s, tgt) == 0); 3268 } 3269 return (B_FALSE); 3270} 3271 3272static char * 3273find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3274{ 3275 nvlist_t *pools; 3276 nvlist_t *match = NULL; 3277 char *name = NULL; 3278 char *sepp = NULL; 3279 char sep; 3280 int count = 0; 3281 importargs_t args = { 0 }; 3282 3283 args.paths = dirc; 3284 args.path = dirv; 3285 args.can_be_active = B_TRUE; 3286 3287 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3288 sep = *sepp; 3289 *sepp = '\0'; 3290 } 3291 3292 pools = zpool_search_import(g_zfs, &args); 3293 3294 if (pools != NULL) { 3295 nvpair_t *elem = NULL; 3296 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3297 verify(nvpair_value_nvlist(elem, configp) == 0); 3298 if (pool_match(*configp, *target)) { 3299 count++; 3300 if (match != NULL) { 3301 /* print previously found config */ 3302 if (name != NULL) { 3303 (void) printf("%s\n", name); 3304 dump_nvlist(match, 8); 3305 name = NULL; 3306 } 3307 (void) printf("%s\n", 3308 nvpair_name(elem)); 3309 dump_nvlist(*configp, 8); 3310 } else { 3311 match = *configp; 3312 name = nvpair_name(elem); 3313 } 3314 } 3315 } 3316 } 3317 if (count > 1) 3318 (void) fatal("\tMatched %d pools - use pool GUID " 3319 "instead of pool name or \n" 3320 "\tpool name part of a dataset name to select pool", count); 3321 3322 if (sepp) 3323 *sepp = sep; 3324 /* 3325 * If pool GUID was specified for pool id, replace it with pool name 3326 */ 3327 if (name && (strstr(*target, name) != *target)) { 3328 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3329 3330 *target = umem_alloc(sz, UMEM_NOFAIL); 3331 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3332 } 3333 3334 *configp = name ? match : NULL; 3335 3336 return (name); 3337} 3338 3339int 3340main(int argc, char **argv) 3341{ 3342 int i, c; 3343 struct rlimit rl = { 1024, 1024 }; 3344 spa_t *spa = NULL; 3345 objset_t *os = NULL; 3346 int dump_all = 1; 3347 int verbose = 0; 3348 int error = 0; 3349 char **searchdirs = NULL; 3350 int nsearch = 0; 3351 char *target; 3352 nvlist_t *policy = NULL; 3353 uint64_t max_txg = UINT64_MAX; 3354 int rewind = ZPOOL_NEVER_REWIND; 3355 3356 (void) setrlimit(RLIMIT_NOFILE, &rl); 3357 (void) enable_extended_FILE_stdio(-1, -1); 3358 3359 dprintf_setup(&argc, argv); 3360 3361 while ((c = getopt(argc, argv, 3362 "bcdhilmM:suCDRSAFLXx:evp:t:U:P")) != -1) { 3363 switch (c) { 3364 case 'b': 3365 case 'c': 3366 case 'd': 3367 case 'h': 3368 case 'i': 3369 case 'l': 3370 case 'm': 3371 case 's': 3372 case 'u': 3373 case 'C': 3374 case 'D': 3375 case 'R': 3376 case 'S': 3377 dump_opt[c]++; 3378 dump_all = 0; 3379 break; 3380 case 'A': 3381 case 'F': 3382 case 'L': 3383 case 'X': 3384 case 'e': 3385 case 'P': 3386 dump_opt[c]++; 3387 break; 3388 case 'v': 3389 verbose++; 3390 break; 3391 case 'M': 3392 max_inflight = strtoull(optarg, NULL, 0); 3393 if (max_inflight == 0) { 3394 (void) fprintf(stderr, "maximum number " 3395 "of inflight I/Os must be greater " 3396 "than 0\n"); 3397 usage(); 3398 } 3399 break; 3400 case 'p': 3401 if (searchdirs == NULL) { 3402 searchdirs = umem_alloc(sizeof (char *), 3403 UMEM_NOFAIL); 3404 } else { 3405 char **tmp = umem_alloc((nsearch + 1) * 3406 sizeof (char *), UMEM_NOFAIL); 3407 bcopy(searchdirs, tmp, nsearch * 3408 sizeof (char *)); 3409 umem_free(searchdirs, 3410 nsearch * sizeof (char *)); 3411 searchdirs = tmp; 3412 } 3413 searchdirs[nsearch++] = optarg; 3414 break; 3415 case 'x': 3416 vn_dumpdir = optarg; 3417 break; 3418 case 't': 3419 max_txg = strtoull(optarg, NULL, 0); 3420 if (max_txg < TXG_INITIAL) { 3421 (void) fprintf(stderr, "incorrect txg " 3422 "specified: %s\n", optarg); 3423 usage(); 3424 } 3425 break; 3426 case 'U': 3427 spa_config_path = optarg; 3428 break; 3429 default: 3430 usage(); 3431 break; 3432 } 3433 } 3434 3435 if (!dump_opt['e'] && searchdirs != NULL) { 3436 (void) fprintf(stderr, "-p option requires use of -e\n"); 3437 usage(); 3438 } 3439 3440 kernel_init(FREAD); 3441 g_zfs = libzfs_init(); 3442 ASSERT(g_zfs != NULL); 3443 3444 if (dump_all) 3445 verbose = MAX(verbose, 1); 3446 3447 for (c = 0; c < 256; c++) { 3448 if (dump_all && !strchr("elAFLRSXP", c)) 3449 dump_opt[c] = 1; 3450 if (dump_opt[c]) 3451 dump_opt[c] += verbose; 3452 } 3453 3454 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3455 zfs_recover = (dump_opt['A'] > 1); 3456 3457 argc -= optind; 3458 argv += optind; 3459 3460 if (argc < 2 && dump_opt['R']) 3461 usage(); 3462 if (argc < 1) { 3463 if (!dump_opt['e'] && dump_opt['C']) { 3464 dump_cachefile(spa_config_path); 3465 return (0); 3466 } 3467 usage(); 3468 } 3469 3470 if (dump_opt['l']) { 3471 dump_label(argv[0]); 3472 return (0); 3473 } 3474 3475 if (dump_opt['X'] || dump_opt['F']) 3476 rewind = ZPOOL_DO_REWIND | 3477 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3478 3479 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3480 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3481 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3482 fatal("internal error: %s", strerror(ENOMEM)); 3483 3484 error = 0; 3485 target = argv[0]; 3486 3487 if (dump_opt['e']) { 3488 nvlist_t *cfg = NULL; 3489 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3490 3491 error = ENOENT; 3492 if (name) { 3493 if (dump_opt['C'] > 1) { 3494 (void) printf("\nConfiguration for import:\n"); 3495 dump_nvlist(cfg, 8); 3496 } 3497 if (nvlist_add_nvlist(cfg, 3498 ZPOOL_REWIND_POLICY, policy) != 0) { 3499 fatal("can't open '%s': %s", 3500 target, strerror(ENOMEM)); 3501 } 3502 if ((error = spa_import(name, cfg, NULL, 3503 ZFS_IMPORT_MISSING_LOG)) != 0) { 3504 error = spa_import(name, cfg, NULL, 3505 ZFS_IMPORT_VERBATIM); 3506 } 3507 } 3508 } 3509 3510 if (error == 0) { 3511 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3512 error = spa_open_rewind(target, &spa, FTAG, policy, 3513 NULL); 3514 if (error) { 3515 /* 3516 * If we're missing the log device then 3517 * try opening the pool after clearing the 3518 * log state. 3519 */ 3520 mutex_enter(&spa_namespace_lock); 3521 if ((spa = spa_lookup(target)) != NULL && 3522 spa->spa_log_state == SPA_LOG_MISSING) { 3523 spa->spa_log_state = SPA_LOG_CLEAR; 3524 error = 0; 3525 } 3526 mutex_exit(&spa_namespace_lock); 3527 3528 if (!error) { 3529 error = spa_open_rewind(target, &spa, 3530 FTAG, policy, NULL); 3531 } 3532 } 3533 } else { 3534 error = dmu_objset_own(target, DMU_OST_ANY, 3535 B_TRUE, FTAG, &os); 3536 } 3537 } 3538 nvlist_free(policy); 3539 3540 if (error) 3541 fatal("can't open '%s': %s", target, strerror(error)); 3542 3543 argv++; 3544 argc--; 3545 if (!dump_opt['R']) { 3546 if (argc > 0) { 3547 zopt_objects = argc; 3548 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3549 for (i = 0; i < zopt_objects; i++) { 3550 errno = 0; 3551 zopt_object[i] = strtoull(argv[i], NULL, 0); 3552 if (zopt_object[i] == 0 && errno != 0) 3553 fatal("bad number %s: %s", 3554 argv[i], strerror(errno)); 3555 } 3556 } 3557 if (os != NULL) { 3558 dump_dir(os); 3559 } else if (zopt_objects > 0 && !dump_opt['m']) { 3560 dump_dir(spa->spa_meta_objset); 3561 } else { 3562 dump_zpool(spa); 3563 } 3564 } else { 3565 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3566 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3567 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3568 flagbits['e'] = ZDB_FLAG_BSWAP; 3569 flagbits['g'] = ZDB_FLAG_GBH; 3570 flagbits['i'] = ZDB_FLAG_INDIRECT; 3571 flagbits['p'] = ZDB_FLAG_PHYS; 3572 flagbits['r'] = ZDB_FLAG_RAW; 3573 3574 for (i = 0; i < argc; i++) 3575 zdb_read_block(argv[i], spa); 3576 } 3577 3578 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3579 3580 fuid_table_destroy(); 3581 sa_loaded = B_FALSE; 3582 3583 libzfs_fini(g_zfs); 3584 kernel_fini(); 3585 3586 return (0); 3587} 3588