zdb.c revision 263390
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2013 by Delphix. All rights reserved. 25 */ 26 27#include <stdio.h> 28#include <unistd.h> 29#include <stdio_ext.h> 30#include <stdlib.h> 31#include <ctype.h> 32#include <sys/zfs_context.h> 33#include <sys/spa.h> 34#include <sys/spa_impl.h> 35#include <sys/dmu.h> 36#include <sys/zap.h> 37#include <sys/fs/zfs.h> 38#include <sys/zfs_znode.h> 39#include <sys/zfs_sa.h> 40#include <sys/sa.h> 41#include <sys/sa_impl.h> 42#include <sys/vdev.h> 43#include <sys/vdev_impl.h> 44#include <sys/metaslab_impl.h> 45#include <sys/dmu_objset.h> 46#include <sys/dsl_dir.h> 47#include <sys/dsl_dataset.h> 48#include <sys/dsl_pool.h> 49#include <sys/dbuf.h> 50#include <sys/zil.h> 51#include <sys/zil_impl.h> 52#include <sys/stat.h> 53#include <sys/resource.h> 54#include <sys/dmu_traverse.h> 55#include <sys/zio_checksum.h> 56#include <sys/zio_compress.h> 57#include <sys/zfs_fuid.h> 58#include <sys/arc.h> 59#include <sys/ddt.h> 60#include <sys/zfeature.h> 61#include <zfs_comutil.h> 62#undef ZFS_MAXNAMELEN 63#undef verify 64#include <libzfs.h> 65 66#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77#ifndef lint 78extern int zfs_recover; 79#else 80int zfs_recover; 81#endif 82 83const char cmdname[] = "zdb"; 84uint8_t dump_opt[256]; 85 86typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 87 88extern void dump_intent_log(zilog_t *); 89uint64_t *zopt_object = NULL; 90int zopt_objects = 0; 91libzfs_handle_t *g_zfs; 92 93/* 94 * These libumem hooks provide a reasonable set of defaults for the allocator's 95 * debugging facilities. 96 */ 97const char * 98_umem_debug_init() 99{ 100 return ("default,verbose"); /* $UMEM_DEBUG setting */ 101} 102 103const char * 104_umem_logging_init(void) 105{ 106 return ("fail,contents"); /* $UMEM_LOGGING setting */ 107} 108 109static void 110usage(void) 111{ 112 (void) fprintf(stderr, 113 "Usage: %s [-CumdibcsDvhLXFPA] [-t txg] [-e [-p path...]]" 114 "poolname [object...]\n" 115 " %s [-divPA] [-e -p path...] dataset [object...]\n" 116 " %s -m [-LXFPA] [-t txg] [-e [-p path...]]" 117 "poolname [vdev [metaslab...]]\n" 118 " %s -R [-A] [-e [-p path...]] poolname " 119 "vdev:offset:size[:flags]\n" 120 " %s -S [-PA] [-e [-p path...]] poolname\n" 121 " %s -l [-uA] device\n" 122 " %s -C [-A] [-U config]\n\n", 123 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 124 125 (void) fprintf(stderr, " Dataset name must include at least one " 126 "separator character '/' or '@'\n"); 127 (void) fprintf(stderr, " If dataset name is specified, only that " 128 "dataset is dumped\n"); 129 (void) fprintf(stderr, " If object numbers are specified, only " 130 "those objects are dumped\n\n"); 131 (void) fprintf(stderr, " Options to control amount of output:\n"); 132 (void) fprintf(stderr, " -u uberblock\n"); 133 (void) fprintf(stderr, " -d dataset(s)\n"); 134 (void) fprintf(stderr, " -i intent logs\n"); 135 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 136 (void) fprintf(stderr, " -h pool history\n"); 137 (void) fprintf(stderr, " -b block statistics\n"); 138 (void) fprintf(stderr, " -m metaslabs\n"); 139 (void) fprintf(stderr, " -c checksum all metadata (twice for " 140 "all data) blocks\n"); 141 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 142 (void) fprintf(stderr, " -D dedup statistics\n"); 143 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 144 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 145 (void) fprintf(stderr, " -l dump label contents\n"); 146 (void) fprintf(stderr, " -L disable leak tracking (do not " 147 "load spacemaps)\n"); 148 (void) fprintf(stderr, " -R read and display block from a " 149 "device\n\n"); 150 (void) fprintf(stderr, " Below options are intended for use " 151 "with other options (except -l):\n"); 152 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 153 "panic recovery (-AA) or both (-AAA)\n"); 154 (void) fprintf(stderr, " -F attempt automatic rewind within " 155 "safe range of transaction groups\n"); 156 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 157 "cachefile\n"); 158 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 159 "work with dataset)\n"); 160 (void) fprintf(stderr, " -e pool is exported/destroyed/" 161 "has altroot/not in a cachefile\n"); 162 (void) fprintf(stderr, " -p <path> -- use one or more with " 163 "-e to specify path to vdev dir\n"); 164 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 165 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 166 "searching for uberblocks\n"); 167 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 168 "to make only that option verbose\n"); 169 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 170 exit(1); 171} 172 173/* 174 * Called for usage errors that are discovered after a call to spa_open(), 175 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 176 */ 177 178static void 179fatal(const char *fmt, ...) 180{ 181 va_list ap; 182 183 va_start(ap, fmt); 184 (void) fprintf(stderr, "%s: ", cmdname); 185 (void) vfprintf(stderr, fmt, ap); 186 va_end(ap); 187 (void) fprintf(stderr, "\n"); 188 189 exit(1); 190} 191 192/* ARGSUSED */ 193static void 194dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 195{ 196 nvlist_t *nv; 197 size_t nvsize = *(uint64_t *)data; 198 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 199 200 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 201 202 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 203 204 umem_free(packed, nvsize); 205 206 dump_nvlist(nv, 8); 207 208 nvlist_free(nv); 209} 210 211/* ARGSUSED */ 212static void 213dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 214{ 215 spa_history_phys_t *shp = data; 216 217 if (shp == NULL) 218 return; 219 220 (void) printf("\t\tpool_create_len = %llu\n", 221 (u_longlong_t)shp->sh_pool_create_len); 222 (void) printf("\t\tphys_max_off = %llu\n", 223 (u_longlong_t)shp->sh_phys_max_off); 224 (void) printf("\t\tbof = %llu\n", 225 (u_longlong_t)shp->sh_bof); 226 (void) printf("\t\teof = %llu\n", 227 (u_longlong_t)shp->sh_eof); 228 (void) printf("\t\trecords_lost = %llu\n", 229 (u_longlong_t)shp->sh_records_lost); 230} 231 232static void 233zdb_nicenum(uint64_t num, char *buf) 234{ 235 if (dump_opt['P']) 236 (void) sprintf(buf, "%llu", (longlong_t)num); 237 else 238 nicenum(num, buf); 239} 240 241const char histo_stars[] = "****************************************"; 242const int histo_width = sizeof (histo_stars) - 1; 243 244static void 245dump_histogram(const uint64_t *histo, int size, int offset) 246{ 247 int i; 248 int minidx = size - 1; 249 int maxidx = 0; 250 uint64_t max = 0; 251 252 for (i = 0; i < size; i++) { 253 if (histo[i] > max) 254 max = histo[i]; 255 if (histo[i] > 0 && i > maxidx) 256 maxidx = i; 257 if (histo[i] > 0 && i < minidx) 258 minidx = i; 259 } 260 261 if (max < histo_width) 262 max = histo_width; 263 264 for (i = minidx; i <= maxidx; i++) { 265 (void) printf("\t\t\t%3u: %6llu %s\n", 266 i + offset, (u_longlong_t)histo[i], 267 &histo_stars[(max - histo[i]) * histo_width / max]); 268 } 269} 270 271static void 272dump_zap_stats(objset_t *os, uint64_t object) 273{ 274 int error; 275 zap_stats_t zs; 276 277 error = zap_get_stats(os, object, &zs); 278 if (error) 279 return; 280 281 if (zs.zs_ptrtbl_len == 0) { 282 ASSERT(zs.zs_num_blocks == 1); 283 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 284 (u_longlong_t)zs.zs_blocksize, 285 (u_longlong_t)zs.zs_num_entries); 286 return; 287 } 288 289 (void) printf("\tFat ZAP stats:\n"); 290 291 (void) printf("\t\tPointer table:\n"); 292 (void) printf("\t\t\t%llu elements\n", 293 (u_longlong_t)zs.zs_ptrtbl_len); 294 (void) printf("\t\t\tzt_blk: %llu\n", 295 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 296 (void) printf("\t\t\tzt_numblks: %llu\n", 297 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 298 (void) printf("\t\t\tzt_shift: %llu\n", 299 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 300 (void) printf("\t\t\tzt_blks_copied: %llu\n", 301 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 302 (void) printf("\t\t\tzt_nextblk: %llu\n", 303 (u_longlong_t)zs.zs_ptrtbl_nextblk); 304 305 (void) printf("\t\tZAP entries: %llu\n", 306 (u_longlong_t)zs.zs_num_entries); 307 (void) printf("\t\tLeaf blocks: %llu\n", 308 (u_longlong_t)zs.zs_num_leafs); 309 (void) printf("\t\tTotal blocks: %llu\n", 310 (u_longlong_t)zs.zs_num_blocks); 311 (void) printf("\t\tzap_block_type: 0x%llx\n", 312 (u_longlong_t)zs.zs_block_type); 313 (void) printf("\t\tzap_magic: 0x%llx\n", 314 (u_longlong_t)zs.zs_magic); 315 (void) printf("\t\tzap_salt: 0x%llx\n", 316 (u_longlong_t)zs.zs_salt); 317 318 (void) printf("\t\tLeafs with 2^n pointers:\n"); 319 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 320 321 (void) printf("\t\tBlocks with n*5 entries:\n"); 322 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 323 324 (void) printf("\t\tBlocks n/10 full:\n"); 325 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 326 327 (void) printf("\t\tEntries with n chunks:\n"); 328 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 329 330 (void) printf("\t\tBuckets with n entries:\n"); 331 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 332} 333 334/*ARGSUSED*/ 335static void 336dump_none(objset_t *os, uint64_t object, void *data, size_t size) 337{ 338} 339 340/*ARGSUSED*/ 341static void 342dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 343{ 344 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 345} 346 347/*ARGSUSED*/ 348void 349dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 350{ 351} 352 353/*ARGSUSED*/ 354static void 355dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 356{ 357} 358 359/*ARGSUSED*/ 360static void 361dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 362{ 363 zap_cursor_t zc; 364 zap_attribute_t attr; 365 void *prop; 366 int i; 367 368 dump_zap_stats(os, object); 369 (void) printf("\n"); 370 371 for (zap_cursor_init(&zc, os, object); 372 zap_cursor_retrieve(&zc, &attr) == 0; 373 zap_cursor_advance(&zc)) { 374 (void) printf("\t\t%s = ", attr.za_name); 375 if (attr.za_num_integers == 0) { 376 (void) printf("\n"); 377 continue; 378 } 379 prop = umem_zalloc(attr.za_num_integers * 380 attr.za_integer_length, UMEM_NOFAIL); 381 (void) zap_lookup(os, object, attr.za_name, 382 attr.za_integer_length, attr.za_num_integers, prop); 383 if (attr.za_integer_length == 1) { 384 (void) printf("%s", (char *)prop); 385 } else { 386 for (i = 0; i < attr.za_num_integers; i++) { 387 switch (attr.za_integer_length) { 388 case 2: 389 (void) printf("%u ", 390 ((uint16_t *)prop)[i]); 391 break; 392 case 4: 393 (void) printf("%u ", 394 ((uint32_t *)prop)[i]); 395 break; 396 case 8: 397 (void) printf("%lld ", 398 (u_longlong_t)((int64_t *)prop)[i]); 399 break; 400 } 401 } 402 } 403 (void) printf("\n"); 404 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 405 } 406 zap_cursor_fini(&zc); 407} 408 409/*ARGSUSED*/ 410static void 411dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 412{ 413 dump_zap_stats(os, object); 414 /* contents are printed elsewhere, properly decoded */ 415} 416 417/*ARGSUSED*/ 418static void 419dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 420{ 421 zap_cursor_t zc; 422 zap_attribute_t attr; 423 424 dump_zap_stats(os, object); 425 (void) printf("\n"); 426 427 for (zap_cursor_init(&zc, os, object); 428 zap_cursor_retrieve(&zc, &attr) == 0; 429 zap_cursor_advance(&zc)) { 430 (void) printf("\t\t%s = ", attr.za_name); 431 if (attr.za_num_integers == 0) { 432 (void) printf("\n"); 433 continue; 434 } 435 (void) printf(" %llx : [%d:%d:%d]\n", 436 (u_longlong_t)attr.za_first_integer, 437 (int)ATTR_LENGTH(attr.za_first_integer), 438 (int)ATTR_BSWAP(attr.za_first_integer), 439 (int)ATTR_NUM(attr.za_first_integer)); 440 } 441 zap_cursor_fini(&zc); 442} 443 444/*ARGSUSED*/ 445static void 446dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 447{ 448 zap_cursor_t zc; 449 zap_attribute_t attr; 450 uint16_t *layout_attrs; 451 int i; 452 453 dump_zap_stats(os, object); 454 (void) printf("\n"); 455 456 for (zap_cursor_init(&zc, os, object); 457 zap_cursor_retrieve(&zc, &attr) == 0; 458 zap_cursor_advance(&zc)) { 459 (void) printf("\t\t%s = [", attr.za_name); 460 if (attr.za_num_integers == 0) { 461 (void) printf("\n"); 462 continue; 463 } 464 465 VERIFY(attr.za_integer_length == 2); 466 layout_attrs = umem_zalloc(attr.za_num_integers * 467 attr.za_integer_length, UMEM_NOFAIL); 468 469 VERIFY(zap_lookup(os, object, attr.za_name, 470 attr.za_integer_length, 471 attr.za_num_integers, layout_attrs) == 0); 472 473 for (i = 0; i != attr.za_num_integers; i++) 474 (void) printf(" %d ", (int)layout_attrs[i]); 475 (void) printf("]\n"); 476 umem_free(layout_attrs, 477 attr.za_num_integers * attr.za_integer_length); 478 } 479 zap_cursor_fini(&zc); 480} 481 482/*ARGSUSED*/ 483static void 484dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 485{ 486 zap_cursor_t zc; 487 zap_attribute_t attr; 488 const char *typenames[] = { 489 /* 0 */ "not specified", 490 /* 1 */ "FIFO", 491 /* 2 */ "Character Device", 492 /* 3 */ "3 (invalid)", 493 /* 4 */ "Directory", 494 /* 5 */ "5 (invalid)", 495 /* 6 */ "Block Device", 496 /* 7 */ "7 (invalid)", 497 /* 8 */ "Regular File", 498 /* 9 */ "9 (invalid)", 499 /* 10 */ "Symbolic Link", 500 /* 11 */ "11 (invalid)", 501 /* 12 */ "Socket", 502 /* 13 */ "Door", 503 /* 14 */ "Event Port", 504 /* 15 */ "15 (invalid)", 505 }; 506 507 dump_zap_stats(os, object); 508 (void) printf("\n"); 509 510 for (zap_cursor_init(&zc, os, object); 511 zap_cursor_retrieve(&zc, &attr) == 0; 512 zap_cursor_advance(&zc)) { 513 (void) printf("\t\t%s = %lld (type: %s)\n", 514 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 515 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 516 } 517 zap_cursor_fini(&zc); 518} 519 520int 521get_dtl_refcount(vdev_t *vd) 522{ 523 int refcount = 0; 524 525 if (vd->vdev_ops->vdev_op_leaf) { 526 space_map_t *sm = vd->vdev_dtl_sm; 527 528 if (sm != NULL && 529 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 530 return (1); 531 return (0); 532 } 533 534 for (int c = 0; c < vd->vdev_children; c++) 535 refcount += get_dtl_refcount(vd->vdev_child[c]); 536 return (refcount); 537} 538 539int 540get_metaslab_refcount(vdev_t *vd) 541{ 542 int refcount = 0; 543 544 if (vd->vdev_top == vd) { 545 for (int m = 0; m < vd->vdev_ms_count; m++) { 546 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 547 548 if (sm != NULL && 549 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 550 refcount++; 551 } 552 } 553 for (int c = 0; c < vd->vdev_children; c++) 554 refcount += get_metaslab_refcount(vd->vdev_child[c]); 555 556 return (refcount); 557} 558 559static int 560verify_spacemap_refcounts(spa_t *spa) 561{ 562 uint64_t expected_refcount = 0; 563 uint64_t actual_refcount; 564 565 (void) feature_get_refcount(spa, 566 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 567 &expected_refcount); 568 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 569 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 570 571 if (expected_refcount != actual_refcount) { 572 (void) printf("space map refcount mismatch: expected %lld != " 573 "actual %lld\n", 574 (longlong_t)expected_refcount, 575 (longlong_t)actual_refcount); 576 return (2); 577 } 578 return (0); 579} 580 581static void 582dump_spacemap(objset_t *os, space_map_t *sm) 583{ 584 uint64_t alloc, offset, entry; 585 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 586 "INVALID", "INVALID", "INVALID", "INVALID" }; 587 588 if (sm == NULL) 589 return; 590 591 /* 592 * Print out the freelist entries in both encoded and decoded form. 593 */ 594 alloc = 0; 595 for (offset = 0; offset < space_map_length(sm); 596 offset += sizeof (entry)) { 597 uint8_t mapshift = sm->sm_shift; 598 599 VERIFY0(dmu_read(os, space_map_object(sm), offset, 600 sizeof (entry), &entry, DMU_READ_PREFETCH)); 601 if (SM_DEBUG_DECODE(entry)) { 602 603 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 604 (u_longlong_t)(offset / sizeof (entry)), 605 ddata[SM_DEBUG_ACTION_DECODE(entry)], 606 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 607 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 608 } else { 609 (void) printf("\t [%6llu] %c range:" 610 " %010llx-%010llx size: %06llx\n", 611 (u_longlong_t)(offset / sizeof (entry)), 612 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 613 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 614 mapshift) + sm->sm_start), 615 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 616 mapshift) + sm->sm_start + 617 (SM_RUN_DECODE(entry) << mapshift)), 618 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 619 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 620 alloc += SM_RUN_DECODE(entry) << mapshift; 621 else 622 alloc -= SM_RUN_DECODE(entry) << mapshift; 623 } 624 } 625 if (alloc != space_map_allocated(sm)) { 626 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 627 "with space map summary (%llu)\n", 628 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 629 } 630} 631 632static void 633dump_metaslab_stats(metaslab_t *msp) 634{ 635 char maxbuf[32]; 636 range_tree_t *rt = msp->ms_tree; 637 avl_tree_t *t = &msp->ms_size_tree; 638 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 639 640 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 641 642 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 643 "segments", avl_numnodes(t), "maxsize", maxbuf, 644 "freepct", free_pct); 645 (void) printf("\tIn-memory histogram:\n"); 646 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 647} 648 649static void 650dump_metaslab(metaslab_t *msp) 651{ 652 vdev_t *vd = msp->ms_group->mg_vd; 653 spa_t *spa = vd->vdev_spa; 654 space_map_t *sm = msp->ms_sm; 655 char freebuf[32]; 656 657 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 658 659 (void) printf( 660 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 661 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 662 (u_longlong_t)space_map_object(sm), freebuf); 663 664 if (dump_opt['m'] > 2 && !dump_opt['L']) { 665 mutex_enter(&msp->ms_lock); 666 metaslab_load_wait(msp); 667 if (!msp->ms_loaded) { 668 VERIFY0(metaslab_load(msp)); 669 range_tree_stat_verify(msp->ms_tree); 670 } 671 dump_metaslab_stats(msp); 672 metaslab_unload(msp); 673 mutex_exit(&msp->ms_lock); 674 } 675 676 if (dump_opt['m'] > 1 && sm != NULL && 677 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 678 /* 679 * The space map histogram represents free space in chunks 680 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 681 */ 682 (void) printf("\tOn-disk histogram:\n"); 683 dump_histogram(sm->sm_phys->smp_histogram, 684 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 685 } 686 687 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 688 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 689 690 mutex_enter(&msp->ms_lock); 691 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 692 mutex_exit(&msp->ms_lock); 693 } 694} 695 696static void 697print_vdev_metaslab_header(vdev_t *vd) 698{ 699 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 700 (u_longlong_t)vd->vdev_id, 701 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 702 "offset", "spacemap", "free"); 703 (void) printf("\t%15s %19s %15s %10s\n", 704 "---------------", "-------------------", 705 "---------------", "-------------"); 706} 707 708static void 709dump_metaslabs(spa_t *spa) 710{ 711 vdev_t *vd, *rvd = spa->spa_root_vdev; 712 uint64_t m, c = 0, children = rvd->vdev_children; 713 714 (void) printf("\nMetaslabs:\n"); 715 716 if (!dump_opt['d'] && zopt_objects > 0) { 717 c = zopt_object[0]; 718 719 if (c >= children) 720 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 721 722 if (zopt_objects > 1) { 723 vd = rvd->vdev_child[c]; 724 print_vdev_metaslab_header(vd); 725 726 for (m = 1; m < zopt_objects; m++) { 727 if (zopt_object[m] < vd->vdev_ms_count) 728 dump_metaslab( 729 vd->vdev_ms[zopt_object[m]]); 730 else 731 (void) fprintf(stderr, "bad metaslab " 732 "number %llu\n", 733 (u_longlong_t)zopt_object[m]); 734 } 735 (void) printf("\n"); 736 return; 737 } 738 children = c + 1; 739 } 740 for (; c < children; c++) { 741 vd = rvd->vdev_child[c]; 742 print_vdev_metaslab_header(vd); 743 744 for (m = 0; m < vd->vdev_ms_count; m++) 745 dump_metaslab(vd->vdev_ms[m]); 746 (void) printf("\n"); 747 } 748} 749 750static void 751dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 752{ 753 const ddt_phys_t *ddp = dde->dde_phys; 754 const ddt_key_t *ddk = &dde->dde_key; 755 char *types[4] = { "ditto", "single", "double", "triple" }; 756 char blkbuf[BP_SPRINTF_LEN]; 757 blkptr_t blk; 758 759 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 760 if (ddp->ddp_phys_birth == 0) 761 continue; 762 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 763 sprintf_blkptr(blkbuf, &blk); 764 (void) printf("index %llx refcnt %llu %s %s\n", 765 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 766 types[p], blkbuf); 767 } 768} 769 770static void 771dump_dedup_ratio(const ddt_stat_t *dds) 772{ 773 double rL, rP, rD, D, dedup, compress, copies; 774 775 if (dds->dds_blocks == 0) 776 return; 777 778 rL = (double)dds->dds_ref_lsize; 779 rP = (double)dds->dds_ref_psize; 780 rD = (double)dds->dds_ref_dsize; 781 D = (double)dds->dds_dsize; 782 783 dedup = rD / D; 784 compress = rL / rP; 785 copies = rD / rP; 786 787 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 788 "dedup * compress / copies = %.2f\n\n", 789 dedup, compress, copies, dedup * compress / copies); 790} 791 792static void 793dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 794{ 795 char name[DDT_NAMELEN]; 796 ddt_entry_t dde; 797 uint64_t walk = 0; 798 dmu_object_info_t doi; 799 uint64_t count, dspace, mspace; 800 int error; 801 802 error = ddt_object_info(ddt, type, class, &doi); 803 804 if (error == ENOENT) 805 return; 806 ASSERT(error == 0); 807 808 error = ddt_object_count(ddt, type, class, &count); 809 ASSERT(error == 0); 810 if (count == 0) 811 return; 812 813 dspace = doi.doi_physical_blocks_512 << 9; 814 mspace = doi.doi_fill_count * doi.doi_data_block_size; 815 816 ddt_object_name(ddt, type, class, name); 817 818 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 819 name, 820 (u_longlong_t)count, 821 (u_longlong_t)(dspace / count), 822 (u_longlong_t)(mspace / count)); 823 824 if (dump_opt['D'] < 3) 825 return; 826 827 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 828 829 if (dump_opt['D'] < 4) 830 return; 831 832 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 833 return; 834 835 (void) printf("%s contents:\n\n", name); 836 837 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 838 dump_dde(ddt, &dde, walk); 839 840 ASSERT(error == ENOENT); 841 842 (void) printf("\n"); 843} 844 845static void 846dump_all_ddts(spa_t *spa) 847{ 848 ddt_histogram_t ddh_total = { 0 }; 849 ddt_stat_t dds_total = { 0 }; 850 851 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 852 ddt_t *ddt = spa->spa_ddt[c]; 853 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 854 for (enum ddt_class class = 0; class < DDT_CLASSES; 855 class++) { 856 dump_ddt(ddt, type, class); 857 } 858 } 859 } 860 861 ddt_get_dedup_stats(spa, &dds_total); 862 863 if (dds_total.dds_blocks == 0) { 864 (void) printf("All DDTs are empty\n"); 865 return; 866 } 867 868 (void) printf("\n"); 869 870 if (dump_opt['D'] > 1) { 871 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 872 ddt_get_dedup_histogram(spa, &ddh_total); 873 zpool_dump_ddt(&dds_total, &ddh_total); 874 } 875 876 dump_dedup_ratio(&dds_total); 877} 878 879static void 880dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 881{ 882 char *prefix = arg; 883 884 (void) printf("%s [%llu,%llu) length %llu\n", 885 prefix, 886 (u_longlong_t)start, 887 (u_longlong_t)(start + size), 888 (u_longlong_t)(size)); 889} 890 891static void 892dump_dtl(vdev_t *vd, int indent) 893{ 894 spa_t *spa = vd->vdev_spa; 895 boolean_t required; 896 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 897 char prefix[256]; 898 899 spa_vdev_state_enter(spa, SCL_NONE); 900 required = vdev_dtl_required(vd); 901 (void) spa_vdev_state_exit(spa, NULL, 0); 902 903 if (indent == 0) 904 (void) printf("\nDirty time logs:\n\n"); 905 906 (void) printf("\t%*s%s [%s]\n", indent, "", 907 vd->vdev_path ? vd->vdev_path : 908 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 909 required ? "DTL-required" : "DTL-expendable"); 910 911 for (int t = 0; t < DTL_TYPES; t++) { 912 range_tree_t *rt = vd->vdev_dtl[t]; 913 if (range_tree_space(rt) == 0) 914 continue; 915 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 916 indent + 2, "", name[t]); 917 mutex_enter(rt->rt_lock); 918 range_tree_walk(rt, dump_dtl_seg, prefix); 919 mutex_exit(rt->rt_lock); 920 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 921 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 922 } 923 924 for (int c = 0; c < vd->vdev_children; c++) 925 dump_dtl(vd->vdev_child[c], indent + 4); 926} 927 928static void 929dump_history(spa_t *spa) 930{ 931 nvlist_t **events = NULL; 932 char buf[SPA_MAXBLOCKSIZE]; 933 uint64_t resid, len, off = 0; 934 uint_t num = 0; 935 int error; 936 time_t tsec; 937 struct tm t; 938 char tbuf[30]; 939 char internalstr[MAXPATHLEN]; 940 941 do { 942 len = sizeof (buf); 943 944 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 945 (void) fprintf(stderr, "Unable to read history: " 946 "error %d\n", error); 947 return; 948 } 949 950 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 951 break; 952 953 off -= resid; 954 } while (len != 0); 955 956 (void) printf("\nHistory:\n"); 957 for (int i = 0; i < num; i++) { 958 uint64_t time, txg, ievent; 959 char *cmd, *intstr; 960 boolean_t printed = B_FALSE; 961 962 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 963 &time) != 0) 964 goto next; 965 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 966 &cmd) != 0) { 967 if (nvlist_lookup_uint64(events[i], 968 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 969 goto next; 970 verify(nvlist_lookup_uint64(events[i], 971 ZPOOL_HIST_TXG, &txg) == 0); 972 verify(nvlist_lookup_string(events[i], 973 ZPOOL_HIST_INT_STR, &intstr) == 0); 974 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 975 goto next; 976 977 (void) snprintf(internalstr, 978 sizeof (internalstr), 979 "[internal %s txg:%lld] %s", 980 zfs_history_event_names[ievent], txg, 981 intstr); 982 cmd = internalstr; 983 } 984 tsec = time; 985 (void) localtime_r(&tsec, &t); 986 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 987 (void) printf("%s %s\n", tbuf, cmd); 988 printed = B_TRUE; 989 990next: 991 if (dump_opt['h'] > 1) { 992 if (!printed) 993 (void) printf("unrecognized record:\n"); 994 dump_nvlist(events[i], 2); 995 } 996 } 997} 998 999/*ARGSUSED*/ 1000static void 1001dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1002{ 1003} 1004 1005static uint64_t 1006blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1007{ 1008 if (dnp == NULL) { 1009 ASSERT(zb->zb_level < 0); 1010 if (zb->zb_object == 0) 1011 return (zb->zb_blkid); 1012 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1013 } 1014 1015 ASSERT(zb->zb_level >= 0); 1016 1017 return ((zb->zb_blkid << 1018 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1019 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1020} 1021 1022static void 1023sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp) 1024{ 1025 const dva_t *dva = bp->blk_dva; 1026 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1027 1028 if (dump_opt['b'] >= 6) { 1029 sprintf_blkptr(blkbuf, bp); 1030 return; 1031 } 1032 1033 blkbuf[0] = '\0'; 1034 1035 for (int i = 0; i < ndvas; i++) 1036 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 1037 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1038 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1039 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1040 1041 (void) sprintf(blkbuf + strlen(blkbuf), 1042 "%llxL/%llxP F=%llu B=%llu/%llu", 1043 (u_longlong_t)BP_GET_LSIZE(bp), 1044 (u_longlong_t)BP_GET_PSIZE(bp), 1045 (u_longlong_t)bp->blk_fill, 1046 (u_longlong_t)bp->blk_birth, 1047 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1048} 1049 1050static void 1051print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1052 const dnode_phys_t *dnp) 1053{ 1054 char blkbuf[BP_SPRINTF_LEN]; 1055 int l; 1056 1057 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1058 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1059 1060 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1061 1062 ASSERT(zb->zb_level >= 0); 1063 1064 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1065 if (l == zb->zb_level) { 1066 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1067 } else { 1068 (void) printf(" "); 1069 } 1070 } 1071 1072 sprintf_blkptr_compact(blkbuf, bp); 1073 (void) printf("%s\n", blkbuf); 1074} 1075 1076static int 1077visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1078 blkptr_t *bp, const zbookmark_t *zb) 1079{ 1080 int err = 0; 1081 1082 if (bp->blk_birth == 0) 1083 return (0); 1084 1085 print_indirect(bp, zb, dnp); 1086 1087 if (BP_GET_LEVEL(bp) > 0) { 1088 uint32_t flags = ARC_WAIT; 1089 int i; 1090 blkptr_t *cbp; 1091 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1092 arc_buf_t *buf; 1093 uint64_t fill = 0; 1094 1095 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1096 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1097 if (err) 1098 return (err); 1099 ASSERT(buf->b_data); 1100 1101 /* recursively visit blocks below this */ 1102 cbp = buf->b_data; 1103 for (i = 0; i < epb; i++, cbp++) { 1104 zbookmark_t czb; 1105 1106 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1107 zb->zb_level - 1, 1108 zb->zb_blkid * epb + i); 1109 err = visit_indirect(spa, dnp, cbp, &czb); 1110 if (err) 1111 break; 1112 fill += cbp->blk_fill; 1113 } 1114 if (!err) 1115 ASSERT3U(fill, ==, bp->blk_fill); 1116 (void) arc_buf_remove_ref(buf, &buf); 1117 } 1118 1119 return (err); 1120} 1121 1122/*ARGSUSED*/ 1123static void 1124dump_indirect(dnode_t *dn) 1125{ 1126 dnode_phys_t *dnp = dn->dn_phys; 1127 int j; 1128 zbookmark_t czb; 1129 1130 (void) printf("Indirect blocks:\n"); 1131 1132 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1133 dn->dn_object, dnp->dn_nlevels - 1, 0); 1134 for (j = 0; j < dnp->dn_nblkptr; j++) { 1135 czb.zb_blkid = j; 1136 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1137 &dnp->dn_blkptr[j], &czb); 1138 } 1139 1140 (void) printf("\n"); 1141} 1142 1143/*ARGSUSED*/ 1144static void 1145dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1146{ 1147 dsl_dir_phys_t *dd = data; 1148 time_t crtime; 1149 char nice[32]; 1150 1151 if (dd == NULL) 1152 return; 1153 1154 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1155 1156 crtime = dd->dd_creation_time; 1157 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1158 (void) printf("\t\thead_dataset_obj = %llu\n", 1159 (u_longlong_t)dd->dd_head_dataset_obj); 1160 (void) printf("\t\tparent_dir_obj = %llu\n", 1161 (u_longlong_t)dd->dd_parent_obj); 1162 (void) printf("\t\torigin_obj = %llu\n", 1163 (u_longlong_t)dd->dd_origin_obj); 1164 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1165 (u_longlong_t)dd->dd_child_dir_zapobj); 1166 zdb_nicenum(dd->dd_used_bytes, nice); 1167 (void) printf("\t\tused_bytes = %s\n", nice); 1168 zdb_nicenum(dd->dd_compressed_bytes, nice); 1169 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1170 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1171 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1172 zdb_nicenum(dd->dd_quota, nice); 1173 (void) printf("\t\tquota = %s\n", nice); 1174 zdb_nicenum(dd->dd_reserved, nice); 1175 (void) printf("\t\treserved = %s\n", nice); 1176 (void) printf("\t\tprops_zapobj = %llu\n", 1177 (u_longlong_t)dd->dd_props_zapobj); 1178 (void) printf("\t\tdeleg_zapobj = %llu\n", 1179 (u_longlong_t)dd->dd_deleg_zapobj); 1180 (void) printf("\t\tflags = %llx\n", 1181 (u_longlong_t)dd->dd_flags); 1182 1183#define DO(which) \ 1184 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1185 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1186 DO(HEAD); 1187 DO(SNAP); 1188 DO(CHILD); 1189 DO(CHILD_RSRV); 1190 DO(REFRSRV); 1191#undef DO 1192} 1193 1194/*ARGSUSED*/ 1195static void 1196dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1197{ 1198 dsl_dataset_phys_t *ds = data; 1199 time_t crtime; 1200 char used[32], compressed[32], uncompressed[32], unique[32]; 1201 char blkbuf[BP_SPRINTF_LEN]; 1202 1203 if (ds == NULL) 1204 return; 1205 1206 ASSERT(size == sizeof (*ds)); 1207 crtime = ds->ds_creation_time; 1208 zdb_nicenum(ds->ds_referenced_bytes, used); 1209 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1210 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1211 zdb_nicenum(ds->ds_unique_bytes, unique); 1212 sprintf_blkptr(blkbuf, &ds->ds_bp); 1213 1214 (void) printf("\t\tdir_obj = %llu\n", 1215 (u_longlong_t)ds->ds_dir_obj); 1216 (void) printf("\t\tprev_snap_obj = %llu\n", 1217 (u_longlong_t)ds->ds_prev_snap_obj); 1218 (void) printf("\t\tprev_snap_txg = %llu\n", 1219 (u_longlong_t)ds->ds_prev_snap_txg); 1220 (void) printf("\t\tnext_snap_obj = %llu\n", 1221 (u_longlong_t)ds->ds_next_snap_obj); 1222 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1223 (u_longlong_t)ds->ds_snapnames_zapobj); 1224 (void) printf("\t\tnum_children = %llu\n", 1225 (u_longlong_t)ds->ds_num_children); 1226 (void) printf("\t\tuserrefs_obj = %llu\n", 1227 (u_longlong_t)ds->ds_userrefs_obj); 1228 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1229 (void) printf("\t\tcreation_txg = %llu\n", 1230 (u_longlong_t)ds->ds_creation_txg); 1231 (void) printf("\t\tdeadlist_obj = %llu\n", 1232 (u_longlong_t)ds->ds_deadlist_obj); 1233 (void) printf("\t\tused_bytes = %s\n", used); 1234 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1235 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1236 (void) printf("\t\tunique = %s\n", unique); 1237 (void) printf("\t\tfsid_guid = %llu\n", 1238 (u_longlong_t)ds->ds_fsid_guid); 1239 (void) printf("\t\tguid = %llu\n", 1240 (u_longlong_t)ds->ds_guid); 1241 (void) printf("\t\tflags = %llx\n", 1242 (u_longlong_t)ds->ds_flags); 1243 (void) printf("\t\tnext_clones_obj = %llu\n", 1244 (u_longlong_t)ds->ds_next_clones_obj); 1245 (void) printf("\t\tprops_obj = %llu\n", 1246 (u_longlong_t)ds->ds_props_obj); 1247 (void) printf("\t\tbp = %s\n", blkbuf); 1248} 1249 1250/* ARGSUSED */ 1251static int 1252dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1253{ 1254 char blkbuf[BP_SPRINTF_LEN]; 1255 1256 if (bp->blk_birth != 0) { 1257 sprintf_blkptr(blkbuf, bp); 1258 (void) printf("\t%s\n", blkbuf); 1259 } 1260 return (0); 1261} 1262 1263static void 1264dump_bptree(objset_t *os, uint64_t obj, char *name) 1265{ 1266 char bytes[32]; 1267 bptree_phys_t *bt; 1268 dmu_buf_t *db; 1269 1270 if (dump_opt['d'] < 3) 1271 return; 1272 1273 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1274 bt = db->db_data; 1275 zdb_nicenum(bt->bt_bytes, bytes); 1276 (void) printf("\n %s: %llu datasets, %s\n", 1277 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1278 dmu_buf_rele(db, FTAG); 1279 1280 if (dump_opt['d'] < 5) 1281 return; 1282 1283 (void) printf("\n"); 1284 1285 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1286} 1287 1288/* ARGSUSED */ 1289static int 1290dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1291{ 1292 char blkbuf[BP_SPRINTF_LEN]; 1293 1294 ASSERT(bp->blk_birth != 0); 1295 sprintf_blkptr_compact(blkbuf, bp); 1296 (void) printf("\t%s\n", blkbuf); 1297 return (0); 1298} 1299 1300static void 1301dump_bpobj(bpobj_t *bpo, char *name, int indent) 1302{ 1303 char bytes[32]; 1304 char comp[32]; 1305 char uncomp[32]; 1306 1307 if (dump_opt['d'] < 3) 1308 return; 1309 1310 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1311 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1312 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1313 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1314 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1315 "%llu subobjs, %s (%s/%s comp)\n", 1316 indent * 8, name, 1317 (u_longlong_t)bpo->bpo_object, 1318 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1319 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1320 bytes, comp, uncomp); 1321 1322 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1323 uint64_t subobj; 1324 bpobj_t subbpo; 1325 int error; 1326 VERIFY0(dmu_read(bpo->bpo_os, 1327 bpo->bpo_phys->bpo_subobjs, 1328 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1329 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1330 if (error != 0) { 1331 (void) printf("ERROR %u while trying to open " 1332 "subobj id %llu\n", 1333 error, (u_longlong_t)subobj); 1334 continue; 1335 } 1336 dump_bpobj(&subbpo, "subobj", indent + 1); 1337 bpobj_close(&subbpo); 1338 } 1339 } else { 1340 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1341 indent * 8, name, 1342 (u_longlong_t)bpo->bpo_object, 1343 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1344 bytes); 1345 } 1346 1347 if (dump_opt['d'] < 5) 1348 return; 1349 1350 1351 if (indent == 0) { 1352 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1353 (void) printf("\n"); 1354 } 1355} 1356 1357static void 1358dump_deadlist(dsl_deadlist_t *dl) 1359{ 1360 dsl_deadlist_entry_t *dle; 1361 uint64_t unused; 1362 char bytes[32]; 1363 char comp[32]; 1364 char uncomp[32]; 1365 1366 if (dump_opt['d'] < 3) 1367 return; 1368 1369 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1370 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1371 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1372 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1373 bytes, comp, uncomp); 1374 1375 if (dump_opt['d'] < 4) 1376 return; 1377 1378 (void) printf("\n"); 1379 1380 /* force the tree to be loaded */ 1381 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1382 1383 for (dle = avl_first(&dl->dl_tree); dle; 1384 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1385 if (dump_opt['d'] >= 5) { 1386 char buf[128]; 1387 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1388 (longlong_t)dle->dle_mintxg, 1389 (longlong_t)dle->dle_bpobj.bpo_object); 1390 1391 dump_bpobj(&dle->dle_bpobj, buf, 0); 1392 } else { 1393 (void) printf("mintxg %llu -> obj %llu\n", 1394 (longlong_t)dle->dle_mintxg, 1395 (longlong_t)dle->dle_bpobj.bpo_object); 1396 1397 } 1398 } 1399} 1400 1401static avl_tree_t idx_tree; 1402static avl_tree_t domain_tree; 1403static boolean_t fuid_table_loaded; 1404static boolean_t sa_loaded; 1405sa_attr_type_t *sa_attr_table; 1406 1407static void 1408fuid_table_destroy() 1409{ 1410 if (fuid_table_loaded) { 1411 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1412 fuid_table_loaded = B_FALSE; 1413 } 1414} 1415 1416/* 1417 * print uid or gid information. 1418 * For normal POSIX id just the id is printed in decimal format. 1419 * For CIFS files with FUID the fuid is printed in hex followed by 1420 * the domain-rid string. 1421 */ 1422static void 1423print_idstr(uint64_t id, const char *id_type) 1424{ 1425 if (FUID_INDEX(id)) { 1426 char *domain; 1427 1428 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1429 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1430 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1431 } else { 1432 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1433 } 1434 1435} 1436 1437static void 1438dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1439{ 1440 uint32_t uid_idx, gid_idx; 1441 1442 uid_idx = FUID_INDEX(uid); 1443 gid_idx = FUID_INDEX(gid); 1444 1445 /* Load domain table, if not already loaded */ 1446 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1447 uint64_t fuid_obj; 1448 1449 /* first find the fuid object. It lives in the master node */ 1450 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1451 8, 1, &fuid_obj) == 0); 1452 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1453 (void) zfs_fuid_table_load(os, fuid_obj, 1454 &idx_tree, &domain_tree); 1455 fuid_table_loaded = B_TRUE; 1456 } 1457 1458 print_idstr(uid, "uid"); 1459 print_idstr(gid, "gid"); 1460} 1461 1462/*ARGSUSED*/ 1463static void 1464dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1465{ 1466 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1467 sa_handle_t *hdl; 1468 uint64_t xattr, rdev, gen; 1469 uint64_t uid, gid, mode, fsize, parent, links; 1470 uint64_t pflags; 1471 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1472 time_t z_crtime, z_atime, z_mtime, z_ctime; 1473 sa_bulk_attr_t bulk[12]; 1474 int idx = 0; 1475 int error; 1476 1477 if (!sa_loaded) { 1478 uint64_t sa_attrs = 0; 1479 uint64_t version; 1480 1481 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1482 8, 1, &version) == 0); 1483 if (version >= ZPL_VERSION_SA) { 1484 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1485 8, 1, &sa_attrs) == 0); 1486 } 1487 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1488 ZPL_END, &sa_attr_table)) != 0) { 1489 (void) printf("sa_setup failed errno %d, can't " 1490 "display znode contents\n", error); 1491 return; 1492 } 1493 sa_loaded = B_TRUE; 1494 } 1495 1496 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1497 (void) printf("Failed to get handle for SA znode\n"); 1498 return; 1499 } 1500 1501 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1502 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1503 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1504 &links, 8); 1505 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1506 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1507 &mode, 8); 1508 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1509 NULL, &parent, 8); 1510 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1511 &fsize, 8); 1512 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1513 acctm, 16); 1514 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1515 modtm, 16); 1516 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1517 crtm, 16); 1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1519 chgtm, 16); 1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1521 &pflags, 8); 1522 1523 if (sa_bulk_lookup(hdl, bulk, idx)) { 1524 (void) sa_handle_destroy(hdl); 1525 return; 1526 } 1527 1528 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1529 if (error != 0) { 1530 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1531 (u_longlong_t)object); 1532 } 1533 if (dump_opt['d'] < 3) { 1534 (void) printf("\t%s\n", path); 1535 (void) sa_handle_destroy(hdl); 1536 return; 1537 } 1538 1539 z_crtime = (time_t)crtm[0]; 1540 z_atime = (time_t)acctm[0]; 1541 z_mtime = (time_t)modtm[0]; 1542 z_ctime = (time_t)chgtm[0]; 1543 1544 (void) printf("\tpath %s\n", path); 1545 dump_uidgid(os, uid, gid); 1546 (void) printf("\tatime %s", ctime(&z_atime)); 1547 (void) printf("\tmtime %s", ctime(&z_mtime)); 1548 (void) printf("\tctime %s", ctime(&z_ctime)); 1549 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1550 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1551 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1552 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1553 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1554 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1555 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1556 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1557 sizeof (uint64_t)) == 0) 1558 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1559 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1560 sizeof (uint64_t)) == 0) 1561 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1562 sa_handle_destroy(hdl); 1563} 1564 1565/*ARGSUSED*/ 1566static void 1567dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1568{ 1569} 1570 1571/*ARGSUSED*/ 1572static void 1573dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1574{ 1575} 1576 1577static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1578 dump_none, /* unallocated */ 1579 dump_zap, /* object directory */ 1580 dump_uint64, /* object array */ 1581 dump_none, /* packed nvlist */ 1582 dump_packed_nvlist, /* packed nvlist size */ 1583 dump_none, /* bplist */ 1584 dump_none, /* bplist header */ 1585 dump_none, /* SPA space map header */ 1586 dump_none, /* SPA space map */ 1587 dump_none, /* ZIL intent log */ 1588 dump_dnode, /* DMU dnode */ 1589 dump_dmu_objset, /* DMU objset */ 1590 dump_dsl_dir, /* DSL directory */ 1591 dump_zap, /* DSL directory child map */ 1592 dump_zap, /* DSL dataset snap map */ 1593 dump_zap, /* DSL props */ 1594 dump_dsl_dataset, /* DSL dataset */ 1595 dump_znode, /* ZFS znode */ 1596 dump_acl, /* ZFS V0 ACL */ 1597 dump_uint8, /* ZFS plain file */ 1598 dump_zpldir, /* ZFS directory */ 1599 dump_zap, /* ZFS master node */ 1600 dump_zap, /* ZFS delete queue */ 1601 dump_uint8, /* zvol object */ 1602 dump_zap, /* zvol prop */ 1603 dump_uint8, /* other uint8[] */ 1604 dump_uint64, /* other uint64[] */ 1605 dump_zap, /* other ZAP */ 1606 dump_zap, /* persistent error log */ 1607 dump_uint8, /* SPA history */ 1608 dump_history_offsets, /* SPA history offsets */ 1609 dump_zap, /* Pool properties */ 1610 dump_zap, /* DSL permissions */ 1611 dump_acl, /* ZFS ACL */ 1612 dump_uint8, /* ZFS SYSACL */ 1613 dump_none, /* FUID nvlist */ 1614 dump_packed_nvlist, /* FUID nvlist size */ 1615 dump_zap, /* DSL dataset next clones */ 1616 dump_zap, /* DSL scrub queue */ 1617 dump_zap, /* ZFS user/group used */ 1618 dump_zap, /* ZFS user/group quota */ 1619 dump_zap, /* snapshot refcount tags */ 1620 dump_ddt_zap, /* DDT ZAP object */ 1621 dump_zap, /* DDT statistics */ 1622 dump_znode, /* SA object */ 1623 dump_zap, /* SA Master Node */ 1624 dump_sa_attrs, /* SA attribute registration */ 1625 dump_sa_layouts, /* SA attribute layouts */ 1626 dump_zap, /* DSL scrub translations */ 1627 dump_none, /* fake dedup BP */ 1628 dump_zap, /* deadlist */ 1629 dump_none, /* deadlist hdr */ 1630 dump_zap, /* dsl clones */ 1631 dump_none, /* bpobj subobjs */ 1632 dump_unknown, /* Unknown type, must be last */ 1633}; 1634 1635static void 1636dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1637{ 1638 dmu_buf_t *db = NULL; 1639 dmu_object_info_t doi; 1640 dnode_t *dn; 1641 void *bonus = NULL; 1642 size_t bsize = 0; 1643 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1644 char bonus_size[32]; 1645 char aux[50]; 1646 int error; 1647 1648 if (*print_header) { 1649 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1650 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1651 "%full", "type"); 1652 *print_header = 0; 1653 } 1654 1655 if (object == 0) { 1656 dn = DMU_META_DNODE(os); 1657 } else { 1658 error = dmu_bonus_hold(os, object, FTAG, &db); 1659 if (error) 1660 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1661 object, error); 1662 bonus = db->db_data; 1663 bsize = db->db_size; 1664 dn = DB_DNODE((dmu_buf_impl_t *)db); 1665 } 1666 dmu_object_info_from_dnode(dn, &doi); 1667 1668 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1669 zdb_nicenum(doi.doi_data_block_size, dblk); 1670 zdb_nicenum(doi.doi_max_offset, lsize); 1671 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1672 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1673 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1674 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1675 doi.doi_max_offset); 1676 1677 aux[0] = '\0'; 1678 1679 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1680 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1681 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1682 } 1683 1684 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1685 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1686 ZDB_COMPRESS_NAME(doi.doi_compress)); 1687 } 1688 1689 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1690 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1691 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1692 1693 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1694 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1695 "", "", "", "", "", bonus_size, "bonus", 1696 ZDB_OT_NAME(doi.doi_bonus_type)); 1697 } 1698 1699 if (verbosity >= 4) { 1700 (void) printf("\tdnode flags: %s%s%s\n", 1701 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1702 "USED_BYTES " : "", 1703 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1704 "USERUSED_ACCOUNTED " : "", 1705 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1706 "SPILL_BLKPTR" : ""); 1707 (void) printf("\tdnode maxblkid: %llu\n", 1708 (longlong_t)dn->dn_phys->dn_maxblkid); 1709 1710 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1711 bonus, bsize); 1712 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1713 *print_header = 1; 1714 } 1715 1716 if (verbosity >= 5) 1717 dump_indirect(dn); 1718 1719 if (verbosity >= 5) { 1720 /* 1721 * Report the list of segments that comprise the object. 1722 */ 1723 uint64_t start = 0; 1724 uint64_t end; 1725 uint64_t blkfill = 1; 1726 int minlvl = 1; 1727 1728 if (dn->dn_type == DMU_OT_DNODE) { 1729 minlvl = 0; 1730 blkfill = DNODES_PER_BLOCK; 1731 } 1732 1733 for (;;) { 1734 char segsize[32]; 1735 error = dnode_next_offset(dn, 1736 0, &start, minlvl, blkfill, 0); 1737 if (error) 1738 break; 1739 end = start; 1740 error = dnode_next_offset(dn, 1741 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1742 zdb_nicenum(end - start, segsize); 1743 (void) printf("\t\tsegment [%016llx, %016llx)" 1744 " size %5s\n", (u_longlong_t)start, 1745 (u_longlong_t)end, segsize); 1746 if (error) 1747 break; 1748 start = end; 1749 } 1750 } 1751 1752 if (db != NULL) 1753 dmu_buf_rele(db, FTAG); 1754} 1755 1756static char *objset_types[DMU_OST_NUMTYPES] = { 1757 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1758 1759static void 1760dump_dir(objset_t *os) 1761{ 1762 dmu_objset_stats_t dds; 1763 uint64_t object, object_count; 1764 uint64_t refdbytes, usedobjs, scratch; 1765 char numbuf[32]; 1766 char blkbuf[BP_SPRINTF_LEN + 20]; 1767 char osname[MAXNAMELEN]; 1768 char *type = "UNKNOWN"; 1769 int verbosity = dump_opt['d']; 1770 int print_header = 1; 1771 int i, error; 1772 1773 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1774 dmu_objset_fast_stat(os, &dds); 1775 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1776 1777 if (dds.dds_type < DMU_OST_NUMTYPES) 1778 type = objset_types[dds.dds_type]; 1779 1780 if (dds.dds_type == DMU_OST_META) { 1781 dds.dds_creation_txg = TXG_INITIAL; 1782 usedobjs = os->os_rootbp->blk_fill; 1783 refdbytes = os->os_spa->spa_dsl_pool-> 1784 dp_mos_dir->dd_phys->dd_used_bytes; 1785 } else { 1786 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1787 } 1788 1789 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1790 1791 zdb_nicenum(refdbytes, numbuf); 1792 1793 if (verbosity >= 4) { 1794 (void) sprintf(blkbuf, ", rootbp "); 1795 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1796 } else { 1797 blkbuf[0] = '\0'; 1798 } 1799 1800 dmu_objset_name(os, osname); 1801 1802 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1803 "%s, %llu objects%s\n", 1804 osname, type, (u_longlong_t)dmu_objset_id(os), 1805 (u_longlong_t)dds.dds_creation_txg, 1806 numbuf, (u_longlong_t)usedobjs, blkbuf); 1807 1808 if (zopt_objects != 0) { 1809 for (i = 0; i < zopt_objects; i++) 1810 dump_object(os, zopt_object[i], verbosity, 1811 &print_header); 1812 (void) printf("\n"); 1813 return; 1814 } 1815 1816 if (dump_opt['i'] != 0 || verbosity >= 2) 1817 dump_intent_log(dmu_objset_zil(os)); 1818 1819 if (dmu_objset_ds(os) != NULL) 1820 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1821 1822 if (verbosity < 2) 1823 return; 1824 1825 if (os->os_rootbp->blk_birth == 0) 1826 return; 1827 1828 dump_object(os, 0, verbosity, &print_header); 1829 object_count = 0; 1830 if (DMU_USERUSED_DNODE(os) != NULL && 1831 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1832 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1833 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1834 } 1835 1836 object = 0; 1837 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1838 dump_object(os, object, verbosity, &print_header); 1839 object_count++; 1840 } 1841 1842 ASSERT3U(object_count, ==, usedobjs); 1843 1844 (void) printf("\n"); 1845 1846 if (error != ESRCH) { 1847 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1848 abort(); 1849 } 1850} 1851 1852static void 1853dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1854{ 1855 time_t timestamp = ub->ub_timestamp; 1856 1857 (void) printf(header ? header : ""); 1858 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1859 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1860 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1861 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1862 (void) printf("\ttimestamp = %llu UTC = %s", 1863 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1864 if (dump_opt['u'] >= 3) { 1865 char blkbuf[BP_SPRINTF_LEN]; 1866 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1867 (void) printf("\trootbp = %s\n", blkbuf); 1868 } 1869 (void) printf(footer ? footer : ""); 1870} 1871 1872static void 1873dump_config(spa_t *spa) 1874{ 1875 dmu_buf_t *db; 1876 size_t nvsize = 0; 1877 int error = 0; 1878 1879 1880 error = dmu_bonus_hold(spa->spa_meta_objset, 1881 spa->spa_config_object, FTAG, &db); 1882 1883 if (error == 0) { 1884 nvsize = *(uint64_t *)db->db_data; 1885 dmu_buf_rele(db, FTAG); 1886 1887 (void) printf("\nMOS Configuration:\n"); 1888 dump_packed_nvlist(spa->spa_meta_objset, 1889 spa->spa_config_object, (void *)&nvsize, 1); 1890 } else { 1891 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1892 (u_longlong_t)spa->spa_config_object, error); 1893 } 1894} 1895 1896static void 1897dump_cachefile(const char *cachefile) 1898{ 1899 int fd; 1900 struct stat64 statbuf; 1901 char *buf; 1902 nvlist_t *config; 1903 1904 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1905 (void) printf("cannot open '%s': %s\n", cachefile, 1906 strerror(errno)); 1907 exit(1); 1908 } 1909 1910 if (fstat64(fd, &statbuf) != 0) { 1911 (void) printf("failed to stat '%s': %s\n", cachefile, 1912 strerror(errno)); 1913 exit(1); 1914 } 1915 1916 if ((buf = malloc(statbuf.st_size)) == NULL) { 1917 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1918 (u_longlong_t)statbuf.st_size); 1919 exit(1); 1920 } 1921 1922 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1923 (void) fprintf(stderr, "failed to read %llu bytes\n", 1924 (u_longlong_t)statbuf.st_size); 1925 exit(1); 1926 } 1927 1928 (void) close(fd); 1929 1930 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1931 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1932 exit(1); 1933 } 1934 1935 free(buf); 1936 1937 dump_nvlist(config, 0); 1938 1939 nvlist_free(config); 1940} 1941 1942#define ZDB_MAX_UB_HEADER_SIZE 32 1943 1944static void 1945dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1946{ 1947 vdev_t vd; 1948 vdev_t *vdp = &vd; 1949 char header[ZDB_MAX_UB_HEADER_SIZE]; 1950 1951 vd.vdev_ashift = ashift; 1952 vdp->vdev_top = vdp; 1953 1954 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1955 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1956 uberblock_t *ub = (void *)((char *)lbl + uoff); 1957 1958 if (uberblock_verify(ub)) 1959 continue; 1960 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1961 "Uberblock[%d]\n", i); 1962 dump_uberblock(ub, header, ""); 1963 } 1964} 1965 1966static void 1967dump_label(const char *dev) 1968{ 1969 int fd; 1970 vdev_label_t label; 1971 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1972 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1973 struct stat64 statbuf; 1974 uint64_t psize, ashift; 1975 int len = strlen(dev) + 1; 1976 1977 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1978 len++; 1979 path = malloc(len); 1980 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1981 } else { 1982 path = strdup(dev); 1983 } 1984 1985 if ((fd = open64(path, O_RDONLY)) < 0) { 1986 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1987 free(path); 1988 exit(1); 1989 } 1990 1991 if (fstat64(fd, &statbuf) != 0) { 1992 (void) printf("failed to stat '%s': %s\n", path, 1993 strerror(errno)); 1994 free(path); 1995 (void) close(fd); 1996 exit(1); 1997 } 1998 1999 if (S_ISBLK(statbuf.st_mode)) { 2000 (void) printf("cannot use '%s': character device required\n", 2001 path); 2002 free(path); 2003 (void) close(fd); 2004 exit(1); 2005 } 2006 2007 psize = statbuf.st_size; 2008 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2009 2010 for (int l = 0; l < VDEV_LABELS; l++) { 2011 nvlist_t *config = NULL; 2012 2013 (void) printf("--------------------------------------------\n"); 2014 (void) printf("LABEL %d\n", l); 2015 (void) printf("--------------------------------------------\n"); 2016 2017 if (pread64(fd, &label, sizeof (label), 2018 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2019 (void) printf("failed to read label %d\n", l); 2020 continue; 2021 } 2022 2023 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2024 (void) printf("failed to unpack label %d\n", l); 2025 ashift = SPA_MINBLOCKSHIFT; 2026 } else { 2027 nvlist_t *vdev_tree = NULL; 2028 2029 dump_nvlist(config, 4); 2030 if ((nvlist_lookup_nvlist(config, 2031 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2032 (nvlist_lookup_uint64(vdev_tree, 2033 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2034 ashift = SPA_MINBLOCKSHIFT; 2035 nvlist_free(config); 2036 } 2037 if (dump_opt['u']) 2038 dump_label_uberblocks(&label, ashift); 2039 } 2040 2041 free(path); 2042 (void) close(fd); 2043} 2044 2045/*ARGSUSED*/ 2046static int 2047dump_one_dir(const char *dsname, void *arg) 2048{ 2049 int error; 2050 objset_t *os; 2051 2052 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2053 if (error) { 2054 (void) printf("Could not open %s, error %d\n", dsname, error); 2055 return (0); 2056 } 2057 dump_dir(os); 2058 dmu_objset_disown(os, FTAG); 2059 fuid_table_destroy(); 2060 sa_loaded = B_FALSE; 2061 return (0); 2062} 2063 2064/* 2065 * Block statistics. 2066 */ 2067#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2068typedef struct zdb_blkstats { 2069 uint64_t zb_asize; 2070 uint64_t zb_lsize; 2071 uint64_t zb_psize; 2072 uint64_t zb_count; 2073 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2074} zdb_blkstats_t; 2075 2076/* 2077 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2078 */ 2079#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2080#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2081#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2082#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2083 2084static char *zdb_ot_extname[] = { 2085 "deferred free", 2086 "dedup ditto", 2087 "other", 2088 "Total", 2089}; 2090 2091#define ZB_TOTAL DN_MAX_LEVELS 2092 2093typedef struct zdb_cb { 2094 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2095 uint64_t zcb_dedup_asize; 2096 uint64_t zcb_dedup_blocks; 2097 uint64_t zcb_start; 2098 uint64_t zcb_lastprint; 2099 uint64_t zcb_totalasize; 2100 uint64_t zcb_errors[256]; 2101 int zcb_readfails; 2102 int zcb_haderrors; 2103 spa_t *zcb_spa; 2104} zdb_cb_t; 2105 2106static void 2107zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2108 dmu_object_type_t type) 2109{ 2110 uint64_t refcnt = 0; 2111 2112 ASSERT(type < ZDB_OT_TOTAL); 2113 2114 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2115 return; 2116 2117 for (int i = 0; i < 4; i++) { 2118 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2119 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2120 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2121 2122 zb->zb_asize += BP_GET_ASIZE(bp); 2123 zb->zb_lsize += BP_GET_LSIZE(bp); 2124 zb->zb_psize += BP_GET_PSIZE(bp); 2125 zb->zb_count++; 2126 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2127 } 2128 2129 if (dump_opt['L']) 2130 return; 2131 2132 if (BP_GET_DEDUP(bp)) { 2133 ddt_t *ddt; 2134 ddt_entry_t *dde; 2135 2136 ddt = ddt_select(zcb->zcb_spa, bp); 2137 ddt_enter(ddt); 2138 dde = ddt_lookup(ddt, bp, B_FALSE); 2139 2140 if (dde == NULL) { 2141 refcnt = 0; 2142 } else { 2143 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2144 ddt_phys_decref(ddp); 2145 refcnt = ddp->ddp_refcnt; 2146 if (ddt_phys_total_refcnt(dde) == 0) 2147 ddt_remove(ddt, dde); 2148 } 2149 ddt_exit(ddt); 2150 } 2151 2152 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2153 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2154 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2155} 2156 2157static int 2158zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2159 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2160{ 2161 zdb_cb_t *zcb = arg; 2162 char blkbuf[BP_SPRINTF_LEN]; 2163 dmu_object_type_t type; 2164 boolean_t is_metadata; 2165 2166 if (bp == NULL) 2167 return (0); 2168 2169 type = BP_GET_TYPE(bp); 2170 2171 zdb_count_block(zcb, zilog, bp, 2172 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2173 2174 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2175 2176 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2177 int ioerr; 2178 size_t size = BP_GET_PSIZE(bp); 2179 void *data = malloc(size); 2180 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2181 2182 /* If it's an intent log block, failure is expected. */ 2183 if (zb->zb_level == ZB_ZIL_LEVEL) 2184 flags |= ZIO_FLAG_SPECULATIVE; 2185 2186 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, 2187 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2188 2189 free(data); 2190 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) { 2191 zcb->zcb_haderrors = 1; 2192 zcb->zcb_errors[ioerr]++; 2193 2194 if (dump_opt['b'] >= 2) 2195 sprintf_blkptr(blkbuf, bp); 2196 else 2197 blkbuf[0] = '\0'; 2198 2199 (void) printf("zdb_blkptr_cb: " 2200 "Got error %d reading " 2201 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2202 ioerr, 2203 (u_longlong_t)zb->zb_objset, 2204 (u_longlong_t)zb->zb_object, 2205 (u_longlong_t)zb->zb_level, 2206 (u_longlong_t)zb->zb_blkid, 2207 blkbuf); 2208 } 2209 } 2210 2211 zcb->zcb_readfails = 0; 2212 2213 if (dump_opt['b'] >= 5) { 2214 sprintf_blkptr(blkbuf, bp); 2215 (void) printf("objset %llu object %llu " 2216 "level %lld offset 0x%llx %s\n", 2217 (u_longlong_t)zb->zb_objset, 2218 (u_longlong_t)zb->zb_object, 2219 (longlong_t)zb->zb_level, 2220 (u_longlong_t)blkid2offset(dnp, bp, zb), 2221 blkbuf); 2222 } 2223 2224 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2225 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2226 uint64_t now = gethrtime(); 2227 char buf[10]; 2228 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2229 int kb_per_sec = 2230 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2231 int sec_remaining = 2232 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2233 2234 zfs_nicenum(bytes, buf, sizeof (buf)); 2235 (void) fprintf(stderr, 2236 "\r%5s completed (%4dMB/s) " 2237 "estimated time remaining: %uhr %02umin %02usec ", 2238 buf, kb_per_sec / 1024, 2239 sec_remaining / 60 / 60, 2240 sec_remaining / 60 % 60, 2241 sec_remaining % 60); 2242 2243 zcb->zcb_lastprint = now; 2244 } 2245 2246 return (0); 2247} 2248 2249static void 2250zdb_leak(void *arg, uint64_t start, uint64_t size) 2251{ 2252 vdev_t *vd = arg; 2253 2254 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2255 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2256} 2257 2258static metaslab_ops_t zdb_metaslab_ops = { 2259 NULL, /* alloc */ 2260 NULL /* fragmented */ 2261}; 2262 2263static void 2264zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2265{ 2266 ddt_bookmark_t ddb = { 0 }; 2267 ddt_entry_t dde; 2268 int error; 2269 2270 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2271 blkptr_t blk; 2272 ddt_phys_t *ddp = dde.dde_phys; 2273 2274 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2275 return; 2276 2277 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2278 2279 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2280 if (ddp->ddp_phys_birth == 0) 2281 continue; 2282 ddt_bp_create(ddb.ddb_checksum, 2283 &dde.dde_key, ddp, &blk); 2284 if (p == DDT_PHYS_DITTO) { 2285 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2286 } else { 2287 zcb->zcb_dedup_asize += 2288 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2289 zcb->zcb_dedup_blocks++; 2290 } 2291 } 2292 if (!dump_opt['L']) { 2293 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2294 ddt_enter(ddt); 2295 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2296 ddt_exit(ddt); 2297 } 2298 } 2299 2300 ASSERT(error == ENOENT); 2301} 2302 2303static void 2304zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2305{ 2306 zcb->zcb_spa = spa; 2307 2308 if (!dump_opt['L']) { 2309 vdev_t *rvd = spa->spa_root_vdev; 2310 for (int c = 0; c < rvd->vdev_children; c++) { 2311 vdev_t *vd = rvd->vdev_child[c]; 2312 for (int m = 0; m < vd->vdev_ms_count; m++) { 2313 metaslab_t *msp = vd->vdev_ms[m]; 2314 mutex_enter(&msp->ms_lock); 2315 metaslab_unload(msp); 2316 2317 /* 2318 * For leak detection, we overload the metaslab 2319 * ms_tree to contain allocated segments 2320 * instead of free segments. As a result, 2321 * we can't use the normal metaslab_load/unload 2322 * interfaces. 2323 */ 2324 if (msp->ms_sm != NULL) { 2325 msp->ms_ops = &zdb_metaslab_ops; 2326 VERIFY0(space_map_load(msp->ms_sm, 2327 msp->ms_tree, SM_ALLOC)); 2328 msp->ms_loaded = B_TRUE; 2329 } 2330 mutex_exit(&msp->ms_lock); 2331 } 2332 } 2333 } 2334 2335 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2336 2337 zdb_ddt_leak_init(spa, zcb); 2338 2339 spa_config_exit(spa, SCL_CONFIG, FTAG); 2340} 2341 2342static void 2343zdb_leak_fini(spa_t *spa) 2344{ 2345 if (!dump_opt['L']) { 2346 vdev_t *rvd = spa->spa_root_vdev; 2347 for (int c = 0; c < rvd->vdev_children; c++) { 2348 vdev_t *vd = rvd->vdev_child[c]; 2349 for (int m = 0; m < vd->vdev_ms_count; m++) { 2350 metaslab_t *msp = vd->vdev_ms[m]; 2351 mutex_enter(&msp->ms_lock); 2352 2353 /* 2354 * The ms_tree has been overloaded to 2355 * contain allocated segments. Now that we 2356 * finished traversing all blocks, any 2357 * block that remains in the ms_tree 2358 * represents an allocated block that we 2359 * did not claim during the traversal. 2360 * Claimed blocks would have been removed 2361 * from the ms_tree. 2362 */ 2363 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2364 msp->ms_loaded = B_FALSE; 2365 2366 mutex_exit(&msp->ms_lock); 2367 } 2368 } 2369 } 2370} 2371 2372/* ARGSUSED */ 2373static int 2374count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2375{ 2376 zdb_cb_t *zcb = arg; 2377 2378 if (dump_opt['b'] >= 5) { 2379 char blkbuf[BP_SPRINTF_LEN]; 2380 sprintf_blkptr(blkbuf, bp); 2381 (void) printf("[%s] %s\n", 2382 "deferred free", blkbuf); 2383 } 2384 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2385 return (0); 2386} 2387 2388static int 2389dump_block_stats(spa_t *spa) 2390{ 2391 zdb_cb_t zcb = { 0 }; 2392 zdb_blkstats_t *zb, *tzb; 2393 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2394 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2395 int leaks = 0; 2396 2397 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2398 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2399 (dump_opt['c'] == 1) ? "metadata " : "", 2400 dump_opt['c'] ? "checksums " : "", 2401 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2402 !dump_opt['L'] ? "nothing leaked " : ""); 2403 2404 /* 2405 * Load all space maps as SM_ALLOC maps, then traverse the pool 2406 * claiming each block we discover. If the pool is perfectly 2407 * consistent, the space maps will be empty when we're done. 2408 * Anything left over is a leak; any block we can't claim (because 2409 * it's not part of any space map) is a double allocation, 2410 * reference to a freed block, or an unclaimed log block. 2411 */ 2412 zdb_leak_init(spa, &zcb); 2413 2414 /* 2415 * If there's a deferred-free bplist, process that first. 2416 */ 2417 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2418 count_block_cb, &zcb, NULL); 2419 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2420 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2421 count_block_cb, &zcb, NULL); 2422 } 2423 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2424 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2425 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2426 &zcb, NULL)); 2427 } 2428 2429 if (dump_opt['c'] > 1) 2430 flags |= TRAVERSE_PREFETCH_DATA; 2431 2432 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2433 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2434 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2435 2436 if (zcb.zcb_haderrors) { 2437 (void) printf("\nError counts:\n\n"); 2438 (void) printf("\t%5s %s\n", "errno", "count"); 2439 for (int e = 0; e < 256; e++) { 2440 if (zcb.zcb_errors[e] != 0) { 2441 (void) printf("\t%5d %llu\n", 2442 e, (u_longlong_t)zcb.zcb_errors[e]); 2443 } 2444 } 2445 } 2446 2447 /* 2448 * Report any leaked segments. 2449 */ 2450 zdb_leak_fini(spa); 2451 2452 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2453 2454 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2455 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2456 2457 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2458 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2459 2460 if (total_found == total_alloc) { 2461 if (!dump_opt['L']) 2462 (void) printf("\n\tNo leaks (block sum matches space" 2463 " maps exactly)\n"); 2464 } else { 2465 (void) printf("block traversal size %llu != alloc %llu " 2466 "(%s %lld)\n", 2467 (u_longlong_t)total_found, 2468 (u_longlong_t)total_alloc, 2469 (dump_opt['L']) ? "unreachable" : "leaked", 2470 (longlong_t)(total_alloc - total_found)); 2471 leaks = 1; 2472 } 2473 2474 if (tzb->zb_count == 0) 2475 return (2); 2476 2477 (void) printf("\n"); 2478 (void) printf("\tbp count: %10llu\n", 2479 (u_longlong_t)tzb->zb_count); 2480 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2481 (u_longlong_t)tzb->zb_lsize, 2482 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2483 (void) printf("\tbp physical: %10llu avg:" 2484 " %6llu compression: %6.2f\n", 2485 (u_longlong_t)tzb->zb_psize, 2486 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2487 (double)tzb->zb_lsize / tzb->zb_psize); 2488 (void) printf("\tbp allocated: %10llu avg:" 2489 " %6llu compression: %6.2f\n", 2490 (u_longlong_t)tzb->zb_asize, 2491 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2492 (double)tzb->zb_lsize / tzb->zb_asize); 2493 (void) printf("\tbp deduped: %10llu ref>1:" 2494 " %6llu deduplication: %6.2f\n", 2495 (u_longlong_t)zcb.zcb_dedup_asize, 2496 (u_longlong_t)zcb.zcb_dedup_blocks, 2497 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2498 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2499 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2500 2501 if (dump_opt['b'] >= 2) { 2502 int l, t, level; 2503 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2504 "\t avg\t comp\t%%Total\tType\n"); 2505 2506 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2507 char csize[32], lsize[32], psize[32], asize[32]; 2508 char avg[32]; 2509 char *typename; 2510 2511 if (t < DMU_OT_NUMTYPES) 2512 typename = dmu_ot[t].ot_name; 2513 else 2514 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2515 2516 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2517 (void) printf("%6s\t%5s\t%5s\t%5s" 2518 "\t%5s\t%5s\t%6s\t%s\n", 2519 "-", 2520 "-", 2521 "-", 2522 "-", 2523 "-", 2524 "-", 2525 "-", 2526 typename); 2527 continue; 2528 } 2529 2530 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2531 level = (l == -1 ? ZB_TOTAL : l); 2532 zb = &zcb.zcb_type[level][t]; 2533 2534 if (zb->zb_asize == 0) 2535 continue; 2536 2537 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2538 continue; 2539 2540 if (level == 0 && zb->zb_asize == 2541 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2542 continue; 2543 2544 zdb_nicenum(zb->zb_count, csize); 2545 zdb_nicenum(zb->zb_lsize, lsize); 2546 zdb_nicenum(zb->zb_psize, psize); 2547 zdb_nicenum(zb->zb_asize, asize); 2548 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2549 2550 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2551 "\t%5.2f\t%6.2f\t", 2552 csize, lsize, psize, asize, avg, 2553 (double)zb->zb_lsize / zb->zb_psize, 2554 100.0 * zb->zb_asize / tzb->zb_asize); 2555 2556 if (level == ZB_TOTAL) 2557 (void) printf("%s\n", typename); 2558 else 2559 (void) printf(" L%d %s\n", 2560 level, typename); 2561 2562 if (dump_opt['b'] >= 4) { 2563 (void) printf("psize " 2564 "(in 512-byte sectors): " 2565 "number of blocks\n"); 2566 dump_histogram(zb->zb_psize_histogram, 2567 PSIZE_HISTO_SIZE, 0); 2568 } 2569 } 2570 } 2571 } 2572 2573 (void) printf("\n"); 2574 2575 if (leaks) 2576 return (2); 2577 2578 if (zcb.zcb_haderrors) 2579 return (3); 2580 2581 return (0); 2582} 2583 2584typedef struct zdb_ddt_entry { 2585 ddt_key_t zdde_key; 2586 uint64_t zdde_ref_blocks; 2587 uint64_t zdde_ref_lsize; 2588 uint64_t zdde_ref_psize; 2589 uint64_t zdde_ref_dsize; 2590 avl_node_t zdde_node; 2591} zdb_ddt_entry_t; 2592 2593/* ARGSUSED */ 2594static int 2595zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2596 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2597{ 2598 avl_tree_t *t = arg; 2599 avl_index_t where; 2600 zdb_ddt_entry_t *zdde, zdde_search; 2601 2602 if (bp == NULL) 2603 return (0); 2604 2605 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2606 (void) printf("traversing objset %llu, %llu objects, " 2607 "%lu blocks so far\n", 2608 (u_longlong_t)zb->zb_objset, 2609 (u_longlong_t)bp->blk_fill, 2610 avl_numnodes(t)); 2611 } 2612 2613 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2614 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2615 return (0); 2616 2617 ddt_key_fill(&zdde_search.zdde_key, bp); 2618 2619 zdde = avl_find(t, &zdde_search, &where); 2620 2621 if (zdde == NULL) { 2622 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2623 zdde->zdde_key = zdde_search.zdde_key; 2624 avl_insert(t, zdde, where); 2625 } 2626 2627 zdde->zdde_ref_blocks += 1; 2628 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2629 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2630 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2631 2632 return (0); 2633} 2634 2635static void 2636dump_simulated_ddt(spa_t *spa) 2637{ 2638 avl_tree_t t; 2639 void *cookie = NULL; 2640 zdb_ddt_entry_t *zdde; 2641 ddt_histogram_t ddh_total = { 0 }; 2642 ddt_stat_t dds_total = { 0 }; 2643 2644 avl_create(&t, ddt_entry_compare, 2645 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2646 2647 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2648 2649 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2650 zdb_ddt_add_cb, &t); 2651 2652 spa_config_exit(spa, SCL_CONFIG, FTAG); 2653 2654 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2655 ddt_stat_t dds; 2656 uint64_t refcnt = zdde->zdde_ref_blocks; 2657 ASSERT(refcnt != 0); 2658 2659 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2660 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2661 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2662 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2663 2664 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2665 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2666 dds.dds_ref_psize = zdde->zdde_ref_psize; 2667 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2668 2669 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2670 2671 umem_free(zdde, sizeof (*zdde)); 2672 } 2673 2674 avl_destroy(&t); 2675 2676 ddt_histogram_stat(&dds_total, &ddh_total); 2677 2678 (void) printf("Simulated DDT histogram:\n"); 2679 2680 zpool_dump_ddt(&dds_total, &ddh_total); 2681 2682 dump_dedup_ratio(&dds_total); 2683} 2684 2685static void 2686dump_zpool(spa_t *spa) 2687{ 2688 dsl_pool_t *dp = spa_get_dsl(spa); 2689 int rc = 0; 2690 2691 if (dump_opt['S']) { 2692 dump_simulated_ddt(spa); 2693 return; 2694 } 2695 2696 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2697 (void) printf("\nCached configuration:\n"); 2698 dump_nvlist(spa->spa_config, 8); 2699 } 2700 2701 if (dump_opt['C']) 2702 dump_config(spa); 2703 2704 if (dump_opt['u']) 2705 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2706 2707 if (dump_opt['D']) 2708 dump_all_ddts(spa); 2709 2710 if (dump_opt['d'] > 2 || dump_opt['m']) 2711 dump_metaslabs(spa); 2712 2713 if (dump_opt['d'] || dump_opt['i']) { 2714 dump_dir(dp->dp_meta_objset); 2715 if (dump_opt['d'] >= 3) { 2716 dump_bpobj(&spa->spa_deferred_bpobj, 2717 "Deferred frees", 0); 2718 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2719 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2720 "Pool snapshot frees", 0); 2721 } 2722 2723 if (spa_feature_is_active(spa, 2724 SPA_FEATURE_ASYNC_DESTROY)) { 2725 dump_bptree(spa->spa_meta_objset, 2726 spa->spa_dsl_pool->dp_bptree_obj, 2727 "Pool dataset frees"); 2728 } 2729 dump_dtl(spa->spa_root_vdev, 0); 2730 } 2731 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2732 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2733 } 2734 if (dump_opt['b'] || dump_opt['c']) 2735 rc = dump_block_stats(spa); 2736 2737 if (rc == 0) 2738 rc = verify_spacemap_refcounts(spa); 2739 2740 if (dump_opt['s']) 2741 show_pool_stats(spa); 2742 2743 if (dump_opt['h']) 2744 dump_history(spa); 2745 2746 if (rc != 0) 2747 exit(rc); 2748} 2749 2750#define ZDB_FLAG_CHECKSUM 0x0001 2751#define ZDB_FLAG_DECOMPRESS 0x0002 2752#define ZDB_FLAG_BSWAP 0x0004 2753#define ZDB_FLAG_GBH 0x0008 2754#define ZDB_FLAG_INDIRECT 0x0010 2755#define ZDB_FLAG_PHYS 0x0020 2756#define ZDB_FLAG_RAW 0x0040 2757#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2758 2759int flagbits[256]; 2760 2761static void 2762zdb_print_blkptr(blkptr_t *bp, int flags) 2763{ 2764 char blkbuf[BP_SPRINTF_LEN]; 2765 2766 if (flags & ZDB_FLAG_BSWAP) 2767 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2768 2769 sprintf_blkptr(blkbuf, bp); 2770 (void) printf("%s\n", blkbuf); 2771} 2772 2773static void 2774zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2775{ 2776 int i; 2777 2778 for (i = 0; i < nbps; i++) 2779 zdb_print_blkptr(&bp[i], flags); 2780} 2781 2782static void 2783zdb_dump_gbh(void *buf, int flags) 2784{ 2785 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2786} 2787 2788static void 2789zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2790{ 2791 if (flags & ZDB_FLAG_BSWAP) 2792 byteswap_uint64_array(buf, size); 2793 (void) write(1, buf, size); 2794} 2795 2796static void 2797zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2798{ 2799 uint64_t *d = (uint64_t *)buf; 2800 int nwords = size / sizeof (uint64_t); 2801 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2802 int i, j; 2803 char *hdr, *c; 2804 2805 2806 if (do_bswap) 2807 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2808 else 2809 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2810 2811 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2812 2813 for (i = 0; i < nwords; i += 2) { 2814 (void) printf("%06llx: %016llx %016llx ", 2815 (u_longlong_t)(i * sizeof (uint64_t)), 2816 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2817 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2818 2819 c = (char *)&d[i]; 2820 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2821 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2822 (void) printf("\n"); 2823 } 2824} 2825 2826/* 2827 * There are two acceptable formats: 2828 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2829 * child[.child]* - For example: 0.1.1 2830 * 2831 * The second form can be used to specify arbitrary vdevs anywhere 2832 * in the heirarchy. For example, in a pool with a mirror of 2833 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2834 */ 2835static vdev_t * 2836zdb_vdev_lookup(vdev_t *vdev, char *path) 2837{ 2838 char *s, *p, *q; 2839 int i; 2840 2841 if (vdev == NULL) 2842 return (NULL); 2843 2844 /* First, assume the x.x.x.x format */ 2845 i = (int)strtoul(path, &s, 10); 2846 if (s == path || (s && *s != '.' && *s != '\0')) 2847 goto name; 2848 if (i < 0 || i >= vdev->vdev_children) 2849 return (NULL); 2850 2851 vdev = vdev->vdev_child[i]; 2852 if (*s == '\0') 2853 return (vdev); 2854 return (zdb_vdev_lookup(vdev, s+1)); 2855 2856name: 2857 for (i = 0; i < vdev->vdev_children; i++) { 2858 vdev_t *vc = vdev->vdev_child[i]; 2859 2860 if (vc->vdev_path == NULL) { 2861 vc = zdb_vdev_lookup(vc, path); 2862 if (vc == NULL) 2863 continue; 2864 else 2865 return (vc); 2866 } 2867 2868 p = strrchr(vc->vdev_path, '/'); 2869 p = p ? p + 1 : vc->vdev_path; 2870 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2871 2872 if (strcmp(vc->vdev_path, path) == 0) 2873 return (vc); 2874 if (strcmp(p, path) == 0) 2875 return (vc); 2876 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2877 return (vc); 2878 } 2879 2880 return (NULL); 2881} 2882 2883/* 2884 * Read a block from a pool and print it out. The syntax of the 2885 * block descriptor is: 2886 * 2887 * pool:vdev_specifier:offset:size[:flags] 2888 * 2889 * pool - The name of the pool you wish to read from 2890 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2891 * offset - offset, in hex, in bytes 2892 * size - Amount of data to read, in hex, in bytes 2893 * flags - A string of characters specifying options 2894 * b: Decode a blkptr at given offset within block 2895 * *c: Calculate and display checksums 2896 * d: Decompress data before dumping 2897 * e: Byteswap data before dumping 2898 * g: Display data as a gang block header 2899 * i: Display as an indirect block 2900 * p: Do I/O to physical offset 2901 * r: Dump raw data to stdout 2902 * 2903 * * = not yet implemented 2904 */ 2905static void 2906zdb_read_block(char *thing, spa_t *spa) 2907{ 2908 blkptr_t blk, *bp = &blk; 2909 dva_t *dva = bp->blk_dva; 2910 int flags = 0; 2911 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2912 zio_t *zio; 2913 vdev_t *vd; 2914 void *pbuf, *lbuf, *buf; 2915 char *s, *p, *dup, *vdev, *flagstr; 2916 int i, error; 2917 2918 dup = strdup(thing); 2919 s = strtok(dup, ":"); 2920 vdev = s ? s : ""; 2921 s = strtok(NULL, ":"); 2922 offset = strtoull(s ? s : "", NULL, 16); 2923 s = strtok(NULL, ":"); 2924 size = strtoull(s ? s : "", NULL, 16); 2925 s = strtok(NULL, ":"); 2926 flagstr = s ? s : ""; 2927 2928 s = NULL; 2929 if (size == 0) 2930 s = "size must not be zero"; 2931 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2932 s = "size must be a multiple of sector size"; 2933 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2934 s = "offset must be a multiple of sector size"; 2935 if (s) { 2936 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2937 free(dup); 2938 return; 2939 } 2940 2941 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2942 for (i = 0; flagstr[i]; i++) { 2943 int bit = flagbits[(uchar_t)flagstr[i]]; 2944 2945 if (bit == 0) { 2946 (void) printf("***Invalid flag: %c\n", 2947 flagstr[i]); 2948 continue; 2949 } 2950 flags |= bit; 2951 2952 /* If it's not something with an argument, keep going */ 2953 if ((bit & (ZDB_FLAG_CHECKSUM | 2954 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2955 continue; 2956 2957 p = &flagstr[i + 1]; 2958 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2959 blkptr_offset = strtoull(p, &p, 16); 2960 if (*p != ':' && *p != '\0') { 2961 (void) printf("***Invalid flag arg: '%s'\n", s); 2962 free(dup); 2963 return; 2964 } 2965 i += p - &flagstr[i + 1]; /* skip over the number */ 2966 } 2967 } 2968 2969 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2970 if (vd == NULL) { 2971 (void) printf("***Invalid vdev: %s\n", vdev); 2972 free(dup); 2973 return; 2974 } else { 2975 if (vd->vdev_path) 2976 (void) fprintf(stderr, "Found vdev: %s\n", 2977 vd->vdev_path); 2978 else 2979 (void) fprintf(stderr, "Found vdev type: %s\n", 2980 vd->vdev_ops->vdev_op_type); 2981 } 2982 2983 psize = size; 2984 lsize = size; 2985 2986 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2987 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2988 2989 BP_ZERO(bp); 2990 2991 DVA_SET_VDEV(&dva[0], vd->vdev_id); 2992 DVA_SET_OFFSET(&dva[0], offset); 2993 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 2994 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 2995 2996 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 2997 2998 BP_SET_LSIZE(bp, lsize); 2999 BP_SET_PSIZE(bp, psize); 3000 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3001 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3002 BP_SET_TYPE(bp, DMU_OT_NONE); 3003 BP_SET_LEVEL(bp, 0); 3004 BP_SET_DEDUP(bp, 0); 3005 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3006 3007 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3008 zio = zio_root(spa, NULL, NULL, 0); 3009 3010 if (vd == vd->vdev_top) { 3011 /* 3012 * Treat this as a normal block read. 3013 */ 3014 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3015 ZIO_PRIORITY_SYNC_READ, 3016 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3017 } else { 3018 /* 3019 * Treat this as a vdev child I/O. 3020 */ 3021 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3022 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3023 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3024 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3025 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3026 } 3027 3028 error = zio_wait(zio); 3029 spa_config_exit(spa, SCL_STATE, FTAG); 3030 3031 if (error) { 3032 (void) printf("Read of %s failed, error: %d\n", thing, error); 3033 goto out; 3034 } 3035 3036 if (flags & ZDB_FLAG_DECOMPRESS) { 3037 /* 3038 * We don't know how the data was compressed, so just try 3039 * every decompress function at every inflated blocksize. 3040 */ 3041 enum zio_compress c; 3042 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3043 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3044 3045 bcopy(pbuf, pbuf2, psize); 3046 3047 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3048 SPA_MAXBLOCKSIZE - psize) == 0); 3049 3050 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3051 SPA_MAXBLOCKSIZE - psize) == 0); 3052 3053 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3054 lsize -= SPA_MINBLOCKSIZE) { 3055 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3056 if (zio_decompress_data(c, pbuf, lbuf, 3057 psize, lsize) == 0 && 3058 zio_decompress_data(c, pbuf2, lbuf2, 3059 psize, lsize) == 0 && 3060 bcmp(lbuf, lbuf2, lsize) == 0) 3061 break; 3062 } 3063 if (c != ZIO_COMPRESS_FUNCTIONS) 3064 break; 3065 lsize -= SPA_MINBLOCKSIZE; 3066 } 3067 3068 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3069 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3070 3071 if (lsize <= psize) { 3072 (void) printf("Decompress of %s failed\n", thing); 3073 goto out; 3074 } 3075 buf = lbuf; 3076 size = lsize; 3077 } else { 3078 buf = pbuf; 3079 size = psize; 3080 } 3081 3082 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3083 zdb_print_blkptr((blkptr_t *)(void *) 3084 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3085 else if (flags & ZDB_FLAG_RAW) 3086 zdb_dump_block_raw(buf, size, flags); 3087 else if (flags & ZDB_FLAG_INDIRECT) 3088 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3089 flags); 3090 else if (flags & ZDB_FLAG_GBH) 3091 zdb_dump_gbh(buf, flags); 3092 else 3093 zdb_dump_block(thing, buf, size, flags); 3094 3095out: 3096 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3097 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3098 free(dup); 3099} 3100 3101static boolean_t 3102pool_match(nvlist_t *cfg, char *tgt) 3103{ 3104 uint64_t v, guid = strtoull(tgt, NULL, 0); 3105 char *s; 3106 3107 if (guid != 0) { 3108 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3109 return (v == guid); 3110 } else { 3111 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3112 return (strcmp(s, tgt) == 0); 3113 } 3114 return (B_FALSE); 3115} 3116 3117static char * 3118find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3119{ 3120 nvlist_t *pools; 3121 nvlist_t *match = NULL; 3122 char *name = NULL; 3123 char *sepp = NULL; 3124 char sep; 3125 int count = 0; 3126 importargs_t args = { 0 }; 3127 3128 args.paths = dirc; 3129 args.path = dirv; 3130 args.can_be_active = B_TRUE; 3131 3132 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3133 sep = *sepp; 3134 *sepp = '\0'; 3135 } 3136 3137 pools = zpool_search_import(g_zfs, &args); 3138 3139 if (pools != NULL) { 3140 nvpair_t *elem = NULL; 3141 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3142 verify(nvpair_value_nvlist(elem, configp) == 0); 3143 if (pool_match(*configp, *target)) { 3144 count++; 3145 if (match != NULL) { 3146 /* print previously found config */ 3147 if (name != NULL) { 3148 (void) printf("%s\n", name); 3149 dump_nvlist(match, 8); 3150 name = NULL; 3151 } 3152 (void) printf("%s\n", 3153 nvpair_name(elem)); 3154 dump_nvlist(*configp, 8); 3155 } else { 3156 match = *configp; 3157 name = nvpair_name(elem); 3158 } 3159 } 3160 } 3161 } 3162 if (count > 1) 3163 (void) fatal("\tMatched %d pools - use pool GUID " 3164 "instead of pool name or \n" 3165 "\tpool name part of a dataset name to select pool", count); 3166 3167 if (sepp) 3168 *sepp = sep; 3169 /* 3170 * If pool GUID was specified for pool id, replace it with pool name 3171 */ 3172 if (name && (strstr(*target, name) != *target)) { 3173 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3174 3175 *target = umem_alloc(sz, UMEM_NOFAIL); 3176 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3177 } 3178 3179 *configp = name ? match : NULL; 3180 3181 return (name); 3182} 3183 3184int 3185main(int argc, char **argv) 3186{ 3187 int i, c; 3188 struct rlimit rl = { 1024, 1024 }; 3189 spa_t *spa = NULL; 3190 objset_t *os = NULL; 3191 int dump_all = 1; 3192 int verbose = 0; 3193 int error = 0; 3194 char **searchdirs = NULL; 3195 int nsearch = 0; 3196 char *target; 3197 nvlist_t *policy = NULL; 3198 uint64_t max_txg = UINT64_MAX; 3199 int rewind = ZPOOL_NEVER_REWIND; 3200 3201 (void) setrlimit(RLIMIT_NOFILE, &rl); 3202 (void) enable_extended_FILE_stdio(-1, -1); 3203 3204 dprintf_setup(&argc, argv); 3205 3206 while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) { 3207 switch (c) { 3208 case 'b': 3209 case 'c': 3210 case 'd': 3211 case 'h': 3212 case 'i': 3213 case 'l': 3214 case 'm': 3215 case 's': 3216 case 'u': 3217 case 'C': 3218 case 'D': 3219 case 'R': 3220 case 'S': 3221 dump_opt[c]++; 3222 dump_all = 0; 3223 break; 3224 case 'A': 3225 case 'F': 3226 case 'L': 3227 case 'X': 3228 case 'e': 3229 case 'P': 3230 dump_opt[c]++; 3231 break; 3232 case 'v': 3233 verbose++; 3234 break; 3235 case 'p': 3236 if (searchdirs == NULL) { 3237 searchdirs = umem_alloc(sizeof (char *), 3238 UMEM_NOFAIL); 3239 } else { 3240 char **tmp = umem_alloc((nsearch + 1) * 3241 sizeof (char *), UMEM_NOFAIL); 3242 bcopy(searchdirs, tmp, nsearch * 3243 sizeof (char *)); 3244 umem_free(searchdirs, 3245 nsearch * sizeof (char *)); 3246 searchdirs = tmp; 3247 } 3248 searchdirs[nsearch++] = optarg; 3249 break; 3250 case 't': 3251 max_txg = strtoull(optarg, NULL, 0); 3252 if (max_txg < TXG_INITIAL) { 3253 (void) fprintf(stderr, "incorrect txg " 3254 "specified: %s\n", optarg); 3255 usage(); 3256 } 3257 break; 3258 case 'U': 3259 spa_config_path = optarg; 3260 break; 3261 default: 3262 usage(); 3263 break; 3264 } 3265 } 3266 3267 if (!dump_opt['e'] && searchdirs != NULL) { 3268 (void) fprintf(stderr, "-p option requires use of -e\n"); 3269 usage(); 3270 } 3271 3272 kernel_init(FREAD); 3273 g_zfs = libzfs_init(); 3274 ASSERT(g_zfs != NULL); 3275 3276 if (dump_all) 3277 verbose = MAX(verbose, 1); 3278 3279 for (c = 0; c < 256; c++) { 3280 if (dump_all && !strchr("elAFLRSXP", c)) 3281 dump_opt[c] = 1; 3282 if (dump_opt[c]) 3283 dump_opt[c] += verbose; 3284 } 3285 3286 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3287 zfs_recover = (dump_opt['A'] > 1); 3288 3289 argc -= optind; 3290 argv += optind; 3291 3292 if (argc < 2 && dump_opt['R']) 3293 usage(); 3294 if (argc < 1) { 3295 if (!dump_opt['e'] && dump_opt['C']) { 3296 dump_cachefile(spa_config_path); 3297 return (0); 3298 } 3299 usage(); 3300 } 3301 3302 if (dump_opt['l']) { 3303 dump_label(argv[0]); 3304 return (0); 3305 } 3306 3307 if (dump_opt['X'] || dump_opt['F']) 3308 rewind = ZPOOL_DO_REWIND | 3309 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3310 3311 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3312 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3313 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3314 fatal("internal error: %s", strerror(ENOMEM)); 3315 3316 error = 0; 3317 target = argv[0]; 3318 3319 if (dump_opt['e']) { 3320 nvlist_t *cfg = NULL; 3321 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3322 3323 error = ENOENT; 3324 if (name) { 3325 if (dump_opt['C'] > 1) { 3326 (void) printf("\nConfiguration for import:\n"); 3327 dump_nvlist(cfg, 8); 3328 } 3329 if (nvlist_add_nvlist(cfg, 3330 ZPOOL_REWIND_POLICY, policy) != 0) { 3331 fatal("can't open '%s': %s", 3332 target, strerror(ENOMEM)); 3333 } 3334 if ((error = spa_import(name, cfg, NULL, 3335 ZFS_IMPORT_MISSING_LOG)) != 0) { 3336 error = spa_import(name, cfg, NULL, 3337 ZFS_IMPORT_VERBATIM); 3338 } 3339 } 3340 } 3341 3342 if (error == 0) { 3343 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3344 error = spa_open_rewind(target, &spa, FTAG, policy, 3345 NULL); 3346 if (error) { 3347 /* 3348 * If we're missing the log device then 3349 * try opening the pool after clearing the 3350 * log state. 3351 */ 3352 mutex_enter(&spa_namespace_lock); 3353 if ((spa = spa_lookup(target)) != NULL && 3354 spa->spa_log_state == SPA_LOG_MISSING) { 3355 spa->spa_log_state = SPA_LOG_CLEAR; 3356 error = 0; 3357 } 3358 mutex_exit(&spa_namespace_lock); 3359 3360 if (!error) { 3361 error = spa_open_rewind(target, &spa, 3362 FTAG, policy, NULL); 3363 } 3364 } 3365 } else { 3366 error = dmu_objset_own(target, DMU_OST_ANY, 3367 B_TRUE, FTAG, &os); 3368 } 3369 } 3370 nvlist_free(policy); 3371 3372 if (error) 3373 fatal("can't open '%s': %s", target, strerror(error)); 3374 3375 argv++; 3376 argc--; 3377 if (!dump_opt['R']) { 3378 if (argc > 0) { 3379 zopt_objects = argc; 3380 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3381 for (i = 0; i < zopt_objects; i++) { 3382 errno = 0; 3383 zopt_object[i] = strtoull(argv[i], NULL, 0); 3384 if (zopt_object[i] == 0 && errno != 0) 3385 fatal("bad number %s: %s", 3386 argv[i], strerror(errno)); 3387 } 3388 } 3389 if (os != NULL) { 3390 dump_dir(os); 3391 } else if (zopt_objects > 0 && !dump_opt['m']) { 3392 dump_dir(spa->spa_meta_objset); 3393 } else { 3394 dump_zpool(spa); 3395 } 3396 } else { 3397 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3398 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3399 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3400 flagbits['e'] = ZDB_FLAG_BSWAP; 3401 flagbits['g'] = ZDB_FLAG_GBH; 3402 flagbits['i'] = ZDB_FLAG_INDIRECT; 3403 flagbits['p'] = ZDB_FLAG_PHYS; 3404 flagbits['r'] = ZDB_FLAG_RAW; 3405 3406 for (i = 0; i < argc; i++) 3407 zdb_read_block(argv[i], spa); 3408 } 3409 3410 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3411 3412 fuid_table_destroy(); 3413 sa_loaded = B_FALSE; 3414 3415 libzfs_fini(g_zfs); 3416 kernel_fini(); 3417 3418 return (0); 3419} 3420