zdb.c revision 262093
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 int expected_refcount, actual_refcount; 563 564 expected_refcount = spa_feature_get_refcount(spa, 565 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM]); 566 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 567 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 568 569 if (expected_refcount != actual_refcount) { 570 (void) printf("space map refcount mismatch: expected %d != " 571 "actual %d\n", expected_refcount, actual_refcount); 572 return (2); 573 } 574 return (0); 575} 576 577static void 578dump_spacemap(objset_t *os, space_map_t *sm) 579{ 580 uint64_t alloc, offset, entry; 581 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 582 "INVALID", "INVALID", "INVALID", "INVALID" }; 583 584 if (sm == NULL) 585 return; 586 587 /* 588 * Print out the freelist entries in both encoded and decoded form. 589 */ 590 alloc = 0; 591 for (offset = 0; offset < space_map_length(sm); 592 offset += sizeof (entry)) { 593 uint8_t mapshift = sm->sm_shift; 594 595 VERIFY0(dmu_read(os, space_map_object(sm), offset, 596 sizeof (entry), &entry, DMU_READ_PREFETCH)); 597 if (SM_DEBUG_DECODE(entry)) { 598 599 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 600 (u_longlong_t)(offset / sizeof (entry)), 601 ddata[SM_DEBUG_ACTION_DECODE(entry)], 602 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 603 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 604 } else { 605 (void) printf("\t [%6llu] %c range:" 606 " %010llx-%010llx size: %06llx\n", 607 (u_longlong_t)(offset / sizeof (entry)), 608 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 609 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 610 mapshift) + sm->sm_start), 611 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 612 mapshift) + sm->sm_start + 613 (SM_RUN_DECODE(entry) << mapshift)), 614 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 615 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 616 alloc += SM_RUN_DECODE(entry) << mapshift; 617 else 618 alloc -= SM_RUN_DECODE(entry) << mapshift; 619 } 620 } 621 if (alloc != space_map_allocated(sm)) { 622 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 623 "with space map summary (%llu)\n", 624 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 625 } 626} 627 628static void 629dump_metaslab_stats(metaslab_t *msp) 630{ 631 char maxbuf[32]; 632 range_tree_t *rt = msp->ms_tree; 633 avl_tree_t *t = &msp->ms_size_tree; 634 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 635 636 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf); 637 638 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 639 "segments", avl_numnodes(t), "maxsize", maxbuf, 640 "freepct", free_pct); 641 (void) printf("\tIn-memory histogram:\n"); 642 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 643} 644 645static void 646dump_metaslab(metaslab_t *msp) 647{ 648 vdev_t *vd = msp->ms_group->mg_vd; 649 spa_t *spa = vd->vdev_spa; 650 space_map_t *sm = msp->ms_sm; 651 char freebuf[32]; 652 653 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf); 654 655 (void) printf( 656 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 657 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 658 (u_longlong_t)space_map_object(sm), freebuf); 659 660 if (dump_opt['m'] > 2 && !dump_opt['L']) { 661 mutex_enter(&msp->ms_lock); 662 metaslab_load_wait(msp); 663 if (!msp->ms_loaded) { 664 VERIFY0(metaslab_load(msp)); 665 range_tree_stat_verify(msp->ms_tree); 666 } 667 dump_metaslab_stats(msp); 668 metaslab_unload(msp); 669 mutex_exit(&msp->ms_lock); 670 } 671 672 if (dump_opt['m'] > 1 && sm != NULL && 673 spa_feature_is_active(spa, 674 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM])) { 675 /* 676 * The space map histogram represents free space in chunks 677 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 678 */ 679 (void) printf("\tOn-disk histogram:\n"); 680 dump_histogram(sm->sm_phys->smp_histogram, 681 SPACE_MAP_HISTOGRAM_SIZE(sm), sm->sm_shift); 682 } 683 684 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 685 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 686 687 mutex_enter(&msp->ms_lock); 688 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 689 mutex_exit(&msp->ms_lock); 690 } 691} 692 693static void 694print_vdev_metaslab_header(vdev_t *vd) 695{ 696 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 697 (u_longlong_t)vd->vdev_id, 698 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 699 "offset", "spacemap", "free"); 700 (void) printf("\t%15s %19s %15s %10s\n", 701 "---------------", "-------------------", 702 "---------------", "-------------"); 703} 704 705static void 706dump_metaslabs(spa_t *spa) 707{ 708 vdev_t *vd, *rvd = spa->spa_root_vdev; 709 uint64_t m, c = 0, children = rvd->vdev_children; 710 711 (void) printf("\nMetaslabs:\n"); 712 713 if (!dump_opt['d'] && zopt_objects > 0) { 714 c = zopt_object[0]; 715 716 if (c >= children) 717 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 718 719 if (zopt_objects > 1) { 720 vd = rvd->vdev_child[c]; 721 print_vdev_metaslab_header(vd); 722 723 for (m = 1; m < zopt_objects; m++) { 724 if (zopt_object[m] < vd->vdev_ms_count) 725 dump_metaslab( 726 vd->vdev_ms[zopt_object[m]]); 727 else 728 (void) fprintf(stderr, "bad metaslab " 729 "number %llu\n", 730 (u_longlong_t)zopt_object[m]); 731 } 732 (void) printf("\n"); 733 return; 734 } 735 children = c + 1; 736 } 737 for (; c < children; c++) { 738 vd = rvd->vdev_child[c]; 739 print_vdev_metaslab_header(vd); 740 741 for (m = 0; m < vd->vdev_ms_count; m++) 742 dump_metaslab(vd->vdev_ms[m]); 743 (void) printf("\n"); 744 } 745} 746 747static void 748dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 749{ 750 const ddt_phys_t *ddp = dde->dde_phys; 751 const ddt_key_t *ddk = &dde->dde_key; 752 char *types[4] = { "ditto", "single", "double", "triple" }; 753 char blkbuf[BP_SPRINTF_LEN]; 754 blkptr_t blk; 755 756 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 757 if (ddp->ddp_phys_birth == 0) 758 continue; 759 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 760 sprintf_blkptr(blkbuf, &blk); 761 (void) printf("index %llx refcnt %llu %s %s\n", 762 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 763 types[p], blkbuf); 764 } 765} 766 767static void 768dump_dedup_ratio(const ddt_stat_t *dds) 769{ 770 double rL, rP, rD, D, dedup, compress, copies; 771 772 if (dds->dds_blocks == 0) 773 return; 774 775 rL = (double)dds->dds_ref_lsize; 776 rP = (double)dds->dds_ref_psize; 777 rD = (double)dds->dds_ref_dsize; 778 D = (double)dds->dds_dsize; 779 780 dedup = rD / D; 781 compress = rL / rP; 782 copies = rD / rP; 783 784 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 785 "dedup * compress / copies = %.2f\n\n", 786 dedup, compress, copies, dedup * compress / copies); 787} 788 789static void 790dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 791{ 792 char name[DDT_NAMELEN]; 793 ddt_entry_t dde; 794 uint64_t walk = 0; 795 dmu_object_info_t doi; 796 uint64_t count, dspace, mspace; 797 int error; 798 799 error = ddt_object_info(ddt, type, class, &doi); 800 801 if (error == ENOENT) 802 return; 803 ASSERT(error == 0); 804 805 error = ddt_object_count(ddt, type, class, &count); 806 ASSERT(error == 0); 807 if (count == 0) 808 return; 809 810 dspace = doi.doi_physical_blocks_512 << 9; 811 mspace = doi.doi_fill_count * doi.doi_data_block_size; 812 813 ddt_object_name(ddt, type, class, name); 814 815 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 816 name, 817 (u_longlong_t)count, 818 (u_longlong_t)(dspace / count), 819 (u_longlong_t)(mspace / count)); 820 821 if (dump_opt['D'] < 3) 822 return; 823 824 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 825 826 if (dump_opt['D'] < 4) 827 return; 828 829 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 830 return; 831 832 (void) printf("%s contents:\n\n", name); 833 834 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 835 dump_dde(ddt, &dde, walk); 836 837 ASSERT(error == ENOENT); 838 839 (void) printf("\n"); 840} 841 842static void 843dump_all_ddts(spa_t *spa) 844{ 845 ddt_histogram_t ddh_total = { 0 }; 846 ddt_stat_t dds_total = { 0 }; 847 848 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 849 ddt_t *ddt = spa->spa_ddt[c]; 850 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 851 for (enum ddt_class class = 0; class < DDT_CLASSES; 852 class++) { 853 dump_ddt(ddt, type, class); 854 } 855 } 856 } 857 858 ddt_get_dedup_stats(spa, &dds_total); 859 860 if (dds_total.dds_blocks == 0) { 861 (void) printf("All DDTs are empty\n"); 862 return; 863 } 864 865 (void) printf("\n"); 866 867 if (dump_opt['D'] > 1) { 868 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 869 ddt_get_dedup_histogram(spa, &ddh_total); 870 zpool_dump_ddt(&dds_total, &ddh_total); 871 } 872 873 dump_dedup_ratio(&dds_total); 874} 875 876static void 877dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 878{ 879 char *prefix = arg; 880 881 (void) printf("%s [%llu,%llu) length %llu\n", 882 prefix, 883 (u_longlong_t)start, 884 (u_longlong_t)(start + size), 885 (u_longlong_t)(size)); 886} 887 888static void 889dump_dtl(vdev_t *vd, int indent) 890{ 891 spa_t *spa = vd->vdev_spa; 892 boolean_t required; 893 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 894 char prefix[256]; 895 896 spa_vdev_state_enter(spa, SCL_NONE); 897 required = vdev_dtl_required(vd); 898 (void) spa_vdev_state_exit(spa, NULL, 0); 899 900 if (indent == 0) 901 (void) printf("\nDirty time logs:\n\n"); 902 903 (void) printf("\t%*s%s [%s]\n", indent, "", 904 vd->vdev_path ? vd->vdev_path : 905 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 906 required ? "DTL-required" : "DTL-expendable"); 907 908 for (int t = 0; t < DTL_TYPES; t++) { 909 range_tree_t *rt = vd->vdev_dtl[t]; 910 if (range_tree_space(rt) == 0) 911 continue; 912 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 913 indent + 2, "", name[t]); 914 mutex_enter(rt->rt_lock); 915 range_tree_walk(rt, dump_dtl_seg, prefix); 916 mutex_exit(rt->rt_lock); 917 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 918 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 919 } 920 921 for (int c = 0; c < vd->vdev_children; c++) 922 dump_dtl(vd->vdev_child[c], indent + 4); 923} 924 925static void 926dump_history(spa_t *spa) 927{ 928 nvlist_t **events = NULL; 929 char buf[SPA_MAXBLOCKSIZE]; 930 uint64_t resid, len, off = 0; 931 uint_t num = 0; 932 int error; 933 time_t tsec; 934 struct tm t; 935 char tbuf[30]; 936 char internalstr[MAXPATHLEN]; 937 938 do { 939 len = sizeof (buf); 940 941 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 942 (void) fprintf(stderr, "Unable to read history: " 943 "error %d\n", error); 944 return; 945 } 946 947 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 948 break; 949 950 off -= resid; 951 } while (len != 0); 952 953 (void) printf("\nHistory:\n"); 954 for (int i = 0; i < num; i++) { 955 uint64_t time, txg, ievent; 956 char *cmd, *intstr; 957 boolean_t printed = B_FALSE; 958 959 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 960 &time) != 0) 961 goto next; 962 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 963 &cmd) != 0) { 964 if (nvlist_lookup_uint64(events[i], 965 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 966 goto next; 967 verify(nvlist_lookup_uint64(events[i], 968 ZPOOL_HIST_TXG, &txg) == 0); 969 verify(nvlist_lookup_string(events[i], 970 ZPOOL_HIST_INT_STR, &intstr) == 0); 971 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 972 goto next; 973 974 (void) snprintf(internalstr, 975 sizeof (internalstr), 976 "[internal %s txg:%lld] %s", 977 zfs_history_event_names[ievent], txg, 978 intstr); 979 cmd = internalstr; 980 } 981 tsec = time; 982 (void) localtime_r(&tsec, &t); 983 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 984 (void) printf("%s %s\n", tbuf, cmd); 985 printed = B_TRUE; 986 987next: 988 if (dump_opt['h'] > 1) { 989 if (!printed) 990 (void) printf("unrecognized record:\n"); 991 dump_nvlist(events[i], 2); 992 } 993 } 994} 995 996/*ARGSUSED*/ 997static void 998dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 999{ 1000} 1001 1002static uint64_t 1003blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, const zbookmark_t *zb) 1004{ 1005 if (dnp == NULL) { 1006 ASSERT(zb->zb_level < 0); 1007 if (zb->zb_object == 0) 1008 return (zb->zb_blkid); 1009 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1010 } 1011 1012 ASSERT(zb->zb_level >= 0); 1013 1014 return ((zb->zb_blkid << 1015 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1016 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1017} 1018 1019static void 1020sprintf_blkptr_compact(char *blkbuf, const blkptr_t *bp) 1021{ 1022 const dva_t *dva = bp->blk_dva; 1023 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1024 1025 if (dump_opt['b'] >= 6) { 1026 sprintf_blkptr(blkbuf, bp); 1027 return; 1028 } 1029 1030 blkbuf[0] = '\0'; 1031 1032 for (int i = 0; i < ndvas; i++) 1033 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 1034 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1035 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1036 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1037 1038 (void) sprintf(blkbuf + strlen(blkbuf), 1039 "%llxL/%llxP F=%llu B=%llu/%llu", 1040 (u_longlong_t)BP_GET_LSIZE(bp), 1041 (u_longlong_t)BP_GET_PSIZE(bp), 1042 (u_longlong_t)bp->blk_fill, 1043 (u_longlong_t)bp->blk_birth, 1044 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1045} 1046 1047static void 1048print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1049 const dnode_phys_t *dnp) 1050{ 1051 char blkbuf[BP_SPRINTF_LEN]; 1052 int l; 1053 1054 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1055 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1056 1057 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1058 1059 ASSERT(zb->zb_level >= 0); 1060 1061 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1062 if (l == zb->zb_level) { 1063 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1064 } else { 1065 (void) printf(" "); 1066 } 1067 } 1068 1069 sprintf_blkptr_compact(blkbuf, bp); 1070 (void) printf("%s\n", blkbuf); 1071} 1072 1073static int 1074visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1075 blkptr_t *bp, const zbookmark_t *zb) 1076{ 1077 int err = 0; 1078 1079 if (bp->blk_birth == 0) 1080 return (0); 1081 1082 print_indirect(bp, zb, dnp); 1083 1084 if (BP_GET_LEVEL(bp) > 0) { 1085 uint32_t flags = ARC_WAIT; 1086 int i; 1087 blkptr_t *cbp; 1088 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1089 arc_buf_t *buf; 1090 uint64_t fill = 0; 1091 1092 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1093 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1094 if (err) 1095 return (err); 1096 ASSERT(buf->b_data); 1097 1098 /* recursively visit blocks below this */ 1099 cbp = buf->b_data; 1100 for (i = 0; i < epb; i++, cbp++) { 1101 zbookmark_t czb; 1102 1103 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1104 zb->zb_level - 1, 1105 zb->zb_blkid * epb + i); 1106 err = visit_indirect(spa, dnp, cbp, &czb); 1107 if (err) 1108 break; 1109 fill += cbp->blk_fill; 1110 } 1111 if (!err) 1112 ASSERT3U(fill, ==, bp->blk_fill); 1113 (void) arc_buf_remove_ref(buf, &buf); 1114 } 1115 1116 return (err); 1117} 1118 1119/*ARGSUSED*/ 1120static void 1121dump_indirect(dnode_t *dn) 1122{ 1123 dnode_phys_t *dnp = dn->dn_phys; 1124 int j; 1125 zbookmark_t czb; 1126 1127 (void) printf("Indirect blocks:\n"); 1128 1129 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1130 dn->dn_object, dnp->dn_nlevels - 1, 0); 1131 for (j = 0; j < dnp->dn_nblkptr; j++) { 1132 czb.zb_blkid = j; 1133 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1134 &dnp->dn_blkptr[j], &czb); 1135 } 1136 1137 (void) printf("\n"); 1138} 1139 1140/*ARGSUSED*/ 1141static void 1142dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1143{ 1144 dsl_dir_phys_t *dd = data; 1145 time_t crtime; 1146 char nice[32]; 1147 1148 if (dd == NULL) 1149 return; 1150 1151 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1152 1153 crtime = dd->dd_creation_time; 1154 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1155 (void) printf("\t\thead_dataset_obj = %llu\n", 1156 (u_longlong_t)dd->dd_head_dataset_obj); 1157 (void) printf("\t\tparent_dir_obj = %llu\n", 1158 (u_longlong_t)dd->dd_parent_obj); 1159 (void) printf("\t\torigin_obj = %llu\n", 1160 (u_longlong_t)dd->dd_origin_obj); 1161 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1162 (u_longlong_t)dd->dd_child_dir_zapobj); 1163 zdb_nicenum(dd->dd_used_bytes, nice); 1164 (void) printf("\t\tused_bytes = %s\n", nice); 1165 zdb_nicenum(dd->dd_compressed_bytes, nice); 1166 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1167 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1168 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1169 zdb_nicenum(dd->dd_quota, nice); 1170 (void) printf("\t\tquota = %s\n", nice); 1171 zdb_nicenum(dd->dd_reserved, nice); 1172 (void) printf("\t\treserved = %s\n", nice); 1173 (void) printf("\t\tprops_zapobj = %llu\n", 1174 (u_longlong_t)dd->dd_props_zapobj); 1175 (void) printf("\t\tdeleg_zapobj = %llu\n", 1176 (u_longlong_t)dd->dd_deleg_zapobj); 1177 (void) printf("\t\tflags = %llx\n", 1178 (u_longlong_t)dd->dd_flags); 1179 1180#define DO(which) \ 1181 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1182 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1183 DO(HEAD); 1184 DO(SNAP); 1185 DO(CHILD); 1186 DO(CHILD_RSRV); 1187 DO(REFRSRV); 1188#undef DO 1189} 1190 1191/*ARGSUSED*/ 1192static void 1193dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1194{ 1195 dsl_dataset_phys_t *ds = data; 1196 time_t crtime; 1197 char used[32], compressed[32], uncompressed[32], unique[32]; 1198 char blkbuf[BP_SPRINTF_LEN]; 1199 1200 if (ds == NULL) 1201 return; 1202 1203 ASSERT(size == sizeof (*ds)); 1204 crtime = ds->ds_creation_time; 1205 zdb_nicenum(ds->ds_referenced_bytes, used); 1206 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1207 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1208 zdb_nicenum(ds->ds_unique_bytes, unique); 1209 sprintf_blkptr(blkbuf, &ds->ds_bp); 1210 1211 (void) printf("\t\tdir_obj = %llu\n", 1212 (u_longlong_t)ds->ds_dir_obj); 1213 (void) printf("\t\tprev_snap_obj = %llu\n", 1214 (u_longlong_t)ds->ds_prev_snap_obj); 1215 (void) printf("\t\tprev_snap_txg = %llu\n", 1216 (u_longlong_t)ds->ds_prev_snap_txg); 1217 (void) printf("\t\tnext_snap_obj = %llu\n", 1218 (u_longlong_t)ds->ds_next_snap_obj); 1219 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1220 (u_longlong_t)ds->ds_snapnames_zapobj); 1221 (void) printf("\t\tnum_children = %llu\n", 1222 (u_longlong_t)ds->ds_num_children); 1223 (void) printf("\t\tuserrefs_obj = %llu\n", 1224 (u_longlong_t)ds->ds_userrefs_obj); 1225 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1226 (void) printf("\t\tcreation_txg = %llu\n", 1227 (u_longlong_t)ds->ds_creation_txg); 1228 (void) printf("\t\tdeadlist_obj = %llu\n", 1229 (u_longlong_t)ds->ds_deadlist_obj); 1230 (void) printf("\t\tused_bytes = %s\n", used); 1231 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1232 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1233 (void) printf("\t\tunique = %s\n", unique); 1234 (void) printf("\t\tfsid_guid = %llu\n", 1235 (u_longlong_t)ds->ds_fsid_guid); 1236 (void) printf("\t\tguid = %llu\n", 1237 (u_longlong_t)ds->ds_guid); 1238 (void) printf("\t\tflags = %llx\n", 1239 (u_longlong_t)ds->ds_flags); 1240 (void) printf("\t\tnext_clones_obj = %llu\n", 1241 (u_longlong_t)ds->ds_next_clones_obj); 1242 (void) printf("\t\tprops_obj = %llu\n", 1243 (u_longlong_t)ds->ds_props_obj); 1244 (void) printf("\t\tbp = %s\n", blkbuf); 1245} 1246 1247/* ARGSUSED */ 1248static int 1249dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1250{ 1251 char blkbuf[BP_SPRINTF_LEN]; 1252 1253 if (bp->blk_birth != 0) { 1254 sprintf_blkptr(blkbuf, bp); 1255 (void) printf("\t%s\n", blkbuf); 1256 } 1257 return (0); 1258} 1259 1260static void 1261dump_bptree(objset_t *os, uint64_t obj, char *name) 1262{ 1263 char bytes[32]; 1264 bptree_phys_t *bt; 1265 dmu_buf_t *db; 1266 1267 if (dump_opt['d'] < 3) 1268 return; 1269 1270 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1271 bt = db->db_data; 1272 zdb_nicenum(bt->bt_bytes, bytes); 1273 (void) printf("\n %s: %llu datasets, %s\n", 1274 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1275 dmu_buf_rele(db, FTAG); 1276 1277 if (dump_opt['d'] < 5) 1278 return; 1279 1280 (void) printf("\n"); 1281 1282 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1283} 1284 1285/* ARGSUSED */ 1286static int 1287dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1288{ 1289 char blkbuf[BP_SPRINTF_LEN]; 1290 1291 ASSERT(bp->blk_birth != 0); 1292 sprintf_blkptr_compact(blkbuf, bp); 1293 (void) printf("\t%s\n", blkbuf); 1294 return (0); 1295} 1296 1297static void 1298dump_bpobj(bpobj_t *bpo, char *name, int indent) 1299{ 1300 char bytes[32]; 1301 char comp[32]; 1302 char uncomp[32]; 1303 1304 if (dump_opt['d'] < 3) 1305 return; 1306 1307 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1308 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1309 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1310 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1311 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1312 "%llu subobjs, %s (%s/%s comp)\n", 1313 indent * 8, name, 1314 (u_longlong_t)bpo->bpo_object, 1315 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1316 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1317 bytes, comp, uncomp); 1318 1319 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1320 uint64_t subobj; 1321 bpobj_t subbpo; 1322 int error; 1323 VERIFY0(dmu_read(bpo->bpo_os, 1324 bpo->bpo_phys->bpo_subobjs, 1325 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1326 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1327 if (error != 0) { 1328 (void) printf("ERROR %u while trying to open " 1329 "subobj id %llu\n", 1330 error, (u_longlong_t)subobj); 1331 continue; 1332 } 1333 dump_bpobj(&subbpo, "subobj", indent + 1); 1334 bpobj_close(&subbpo); 1335 } 1336 } else { 1337 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1338 indent * 8, name, 1339 (u_longlong_t)bpo->bpo_object, 1340 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1341 bytes); 1342 } 1343 1344 if (dump_opt['d'] < 5) 1345 return; 1346 1347 1348 if (indent == 0) { 1349 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1350 (void) printf("\n"); 1351 } 1352} 1353 1354static void 1355dump_deadlist(dsl_deadlist_t *dl) 1356{ 1357 dsl_deadlist_entry_t *dle; 1358 uint64_t unused; 1359 char bytes[32]; 1360 char comp[32]; 1361 char uncomp[32]; 1362 1363 if (dump_opt['d'] < 3) 1364 return; 1365 1366 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1367 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1368 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1369 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1370 bytes, comp, uncomp); 1371 1372 if (dump_opt['d'] < 4) 1373 return; 1374 1375 (void) printf("\n"); 1376 1377 /* force the tree to be loaded */ 1378 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1379 1380 for (dle = avl_first(&dl->dl_tree); dle; 1381 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1382 if (dump_opt['d'] >= 5) { 1383 char buf[128]; 1384 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1385 (longlong_t)dle->dle_mintxg, 1386 (longlong_t)dle->dle_bpobj.bpo_object); 1387 1388 dump_bpobj(&dle->dle_bpobj, buf, 0); 1389 } else { 1390 (void) printf("mintxg %llu -> obj %llu\n", 1391 (longlong_t)dle->dle_mintxg, 1392 (longlong_t)dle->dle_bpobj.bpo_object); 1393 1394 } 1395 } 1396} 1397 1398static avl_tree_t idx_tree; 1399static avl_tree_t domain_tree; 1400static boolean_t fuid_table_loaded; 1401static boolean_t sa_loaded; 1402sa_attr_type_t *sa_attr_table; 1403 1404static void 1405fuid_table_destroy() 1406{ 1407 if (fuid_table_loaded) { 1408 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1409 fuid_table_loaded = B_FALSE; 1410 } 1411} 1412 1413/* 1414 * print uid or gid information. 1415 * For normal POSIX id just the id is printed in decimal format. 1416 * For CIFS files with FUID the fuid is printed in hex followed by 1417 * the domain-rid string. 1418 */ 1419static void 1420print_idstr(uint64_t id, const char *id_type) 1421{ 1422 if (FUID_INDEX(id)) { 1423 char *domain; 1424 1425 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1426 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1427 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1428 } else { 1429 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1430 } 1431 1432} 1433 1434static void 1435dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1436{ 1437 uint32_t uid_idx, gid_idx; 1438 1439 uid_idx = FUID_INDEX(uid); 1440 gid_idx = FUID_INDEX(gid); 1441 1442 /* Load domain table, if not already loaded */ 1443 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1444 uint64_t fuid_obj; 1445 1446 /* first find the fuid object. It lives in the master node */ 1447 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1448 8, 1, &fuid_obj) == 0); 1449 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1450 (void) zfs_fuid_table_load(os, fuid_obj, 1451 &idx_tree, &domain_tree); 1452 fuid_table_loaded = B_TRUE; 1453 } 1454 1455 print_idstr(uid, "uid"); 1456 print_idstr(gid, "gid"); 1457} 1458 1459/*ARGSUSED*/ 1460static void 1461dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1462{ 1463 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1464 sa_handle_t *hdl; 1465 uint64_t xattr, rdev, gen; 1466 uint64_t uid, gid, mode, fsize, parent, links; 1467 uint64_t pflags; 1468 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1469 time_t z_crtime, z_atime, z_mtime, z_ctime; 1470 sa_bulk_attr_t bulk[12]; 1471 int idx = 0; 1472 int error; 1473 1474 if (!sa_loaded) { 1475 uint64_t sa_attrs = 0; 1476 uint64_t version; 1477 1478 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1479 8, 1, &version) == 0); 1480 if (version >= ZPL_VERSION_SA) { 1481 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1482 8, 1, &sa_attrs) == 0); 1483 } 1484 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1485 ZPL_END, &sa_attr_table)) != 0) { 1486 (void) printf("sa_setup failed errno %d, can't " 1487 "display znode contents\n", error); 1488 return; 1489 } 1490 sa_loaded = B_TRUE; 1491 } 1492 1493 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1494 (void) printf("Failed to get handle for SA znode\n"); 1495 return; 1496 } 1497 1498 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1499 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1500 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1501 &links, 8); 1502 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1503 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1504 &mode, 8); 1505 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1506 NULL, &parent, 8); 1507 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1508 &fsize, 8); 1509 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1510 acctm, 16); 1511 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1512 modtm, 16); 1513 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1514 crtm, 16); 1515 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1516 chgtm, 16); 1517 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1518 &pflags, 8); 1519 1520 if (sa_bulk_lookup(hdl, bulk, idx)) { 1521 (void) sa_handle_destroy(hdl); 1522 return; 1523 } 1524 1525 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1526 if (error != 0) { 1527 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1528 (u_longlong_t)object); 1529 } 1530 if (dump_opt['d'] < 3) { 1531 (void) printf("\t%s\n", path); 1532 (void) sa_handle_destroy(hdl); 1533 return; 1534 } 1535 1536 z_crtime = (time_t)crtm[0]; 1537 z_atime = (time_t)acctm[0]; 1538 z_mtime = (time_t)modtm[0]; 1539 z_ctime = (time_t)chgtm[0]; 1540 1541 (void) printf("\tpath %s\n", path); 1542 dump_uidgid(os, uid, gid); 1543 (void) printf("\tatime %s", ctime(&z_atime)); 1544 (void) printf("\tmtime %s", ctime(&z_mtime)); 1545 (void) printf("\tctime %s", ctime(&z_ctime)); 1546 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1547 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1548 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1549 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1550 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1551 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1552 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1553 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1554 sizeof (uint64_t)) == 0) 1555 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1556 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1557 sizeof (uint64_t)) == 0) 1558 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1559 sa_handle_destroy(hdl); 1560} 1561 1562/*ARGSUSED*/ 1563static void 1564dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1565{ 1566} 1567 1568/*ARGSUSED*/ 1569static void 1570dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1571{ 1572} 1573 1574static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1575 dump_none, /* unallocated */ 1576 dump_zap, /* object directory */ 1577 dump_uint64, /* object array */ 1578 dump_none, /* packed nvlist */ 1579 dump_packed_nvlist, /* packed nvlist size */ 1580 dump_none, /* bplist */ 1581 dump_none, /* bplist header */ 1582 dump_none, /* SPA space map header */ 1583 dump_none, /* SPA space map */ 1584 dump_none, /* ZIL intent log */ 1585 dump_dnode, /* DMU dnode */ 1586 dump_dmu_objset, /* DMU objset */ 1587 dump_dsl_dir, /* DSL directory */ 1588 dump_zap, /* DSL directory child map */ 1589 dump_zap, /* DSL dataset snap map */ 1590 dump_zap, /* DSL props */ 1591 dump_dsl_dataset, /* DSL dataset */ 1592 dump_znode, /* ZFS znode */ 1593 dump_acl, /* ZFS V0 ACL */ 1594 dump_uint8, /* ZFS plain file */ 1595 dump_zpldir, /* ZFS directory */ 1596 dump_zap, /* ZFS master node */ 1597 dump_zap, /* ZFS delete queue */ 1598 dump_uint8, /* zvol object */ 1599 dump_zap, /* zvol prop */ 1600 dump_uint8, /* other uint8[] */ 1601 dump_uint64, /* other uint64[] */ 1602 dump_zap, /* other ZAP */ 1603 dump_zap, /* persistent error log */ 1604 dump_uint8, /* SPA history */ 1605 dump_history_offsets, /* SPA history offsets */ 1606 dump_zap, /* Pool properties */ 1607 dump_zap, /* DSL permissions */ 1608 dump_acl, /* ZFS ACL */ 1609 dump_uint8, /* ZFS SYSACL */ 1610 dump_none, /* FUID nvlist */ 1611 dump_packed_nvlist, /* FUID nvlist size */ 1612 dump_zap, /* DSL dataset next clones */ 1613 dump_zap, /* DSL scrub queue */ 1614 dump_zap, /* ZFS user/group used */ 1615 dump_zap, /* ZFS user/group quota */ 1616 dump_zap, /* snapshot refcount tags */ 1617 dump_ddt_zap, /* DDT ZAP object */ 1618 dump_zap, /* DDT statistics */ 1619 dump_znode, /* SA object */ 1620 dump_zap, /* SA Master Node */ 1621 dump_sa_attrs, /* SA attribute registration */ 1622 dump_sa_layouts, /* SA attribute layouts */ 1623 dump_zap, /* DSL scrub translations */ 1624 dump_none, /* fake dedup BP */ 1625 dump_zap, /* deadlist */ 1626 dump_none, /* deadlist hdr */ 1627 dump_zap, /* dsl clones */ 1628 dump_none, /* bpobj subobjs */ 1629 dump_unknown, /* Unknown type, must be last */ 1630}; 1631 1632static void 1633dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1634{ 1635 dmu_buf_t *db = NULL; 1636 dmu_object_info_t doi; 1637 dnode_t *dn; 1638 void *bonus = NULL; 1639 size_t bsize = 0; 1640 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1641 char bonus_size[32]; 1642 char aux[50]; 1643 int error; 1644 1645 if (*print_header) { 1646 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1647 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1648 "%full", "type"); 1649 *print_header = 0; 1650 } 1651 1652 if (object == 0) { 1653 dn = DMU_META_DNODE(os); 1654 } else { 1655 error = dmu_bonus_hold(os, object, FTAG, &db); 1656 if (error) 1657 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1658 object, error); 1659 bonus = db->db_data; 1660 bsize = db->db_size; 1661 dn = DB_DNODE((dmu_buf_impl_t *)db); 1662 } 1663 dmu_object_info_from_dnode(dn, &doi); 1664 1665 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1666 zdb_nicenum(doi.doi_data_block_size, dblk); 1667 zdb_nicenum(doi.doi_max_offset, lsize); 1668 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1669 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1670 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1671 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1672 doi.doi_max_offset); 1673 1674 aux[0] = '\0'; 1675 1676 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1677 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1678 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1679 } 1680 1681 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1682 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1683 ZDB_COMPRESS_NAME(doi.doi_compress)); 1684 } 1685 1686 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1687 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1688 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1689 1690 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1691 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1692 "", "", "", "", "", bonus_size, "bonus", 1693 ZDB_OT_NAME(doi.doi_bonus_type)); 1694 } 1695 1696 if (verbosity >= 4) { 1697 (void) printf("\tdnode flags: %s%s%s\n", 1698 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1699 "USED_BYTES " : "", 1700 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1701 "USERUSED_ACCOUNTED " : "", 1702 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1703 "SPILL_BLKPTR" : ""); 1704 (void) printf("\tdnode maxblkid: %llu\n", 1705 (longlong_t)dn->dn_phys->dn_maxblkid); 1706 1707 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1708 bonus, bsize); 1709 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1710 *print_header = 1; 1711 } 1712 1713 if (verbosity >= 5) 1714 dump_indirect(dn); 1715 1716 if (verbosity >= 5) { 1717 /* 1718 * Report the list of segments that comprise the object. 1719 */ 1720 uint64_t start = 0; 1721 uint64_t end; 1722 uint64_t blkfill = 1; 1723 int minlvl = 1; 1724 1725 if (dn->dn_type == DMU_OT_DNODE) { 1726 minlvl = 0; 1727 blkfill = DNODES_PER_BLOCK; 1728 } 1729 1730 for (;;) { 1731 char segsize[32]; 1732 error = dnode_next_offset(dn, 1733 0, &start, minlvl, blkfill, 0); 1734 if (error) 1735 break; 1736 end = start; 1737 error = dnode_next_offset(dn, 1738 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1739 zdb_nicenum(end - start, segsize); 1740 (void) printf("\t\tsegment [%016llx, %016llx)" 1741 " size %5s\n", (u_longlong_t)start, 1742 (u_longlong_t)end, segsize); 1743 if (error) 1744 break; 1745 start = end; 1746 } 1747 } 1748 1749 if (db != NULL) 1750 dmu_buf_rele(db, FTAG); 1751} 1752 1753static char *objset_types[DMU_OST_NUMTYPES] = { 1754 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1755 1756static void 1757dump_dir(objset_t *os) 1758{ 1759 dmu_objset_stats_t dds; 1760 uint64_t object, object_count; 1761 uint64_t refdbytes, usedobjs, scratch; 1762 char numbuf[32]; 1763 char blkbuf[BP_SPRINTF_LEN + 20]; 1764 char osname[MAXNAMELEN]; 1765 char *type = "UNKNOWN"; 1766 int verbosity = dump_opt['d']; 1767 int print_header = 1; 1768 int i, error; 1769 1770 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1771 dmu_objset_fast_stat(os, &dds); 1772 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1773 1774 if (dds.dds_type < DMU_OST_NUMTYPES) 1775 type = objset_types[dds.dds_type]; 1776 1777 if (dds.dds_type == DMU_OST_META) { 1778 dds.dds_creation_txg = TXG_INITIAL; 1779 usedobjs = os->os_rootbp->blk_fill; 1780 refdbytes = os->os_spa->spa_dsl_pool-> 1781 dp_mos_dir->dd_phys->dd_used_bytes; 1782 } else { 1783 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1784 } 1785 1786 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1787 1788 zdb_nicenum(refdbytes, numbuf); 1789 1790 if (verbosity >= 4) { 1791 (void) sprintf(blkbuf, ", rootbp "); 1792 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1793 } else { 1794 blkbuf[0] = '\0'; 1795 } 1796 1797 dmu_objset_name(os, osname); 1798 1799 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1800 "%s, %llu objects%s\n", 1801 osname, type, (u_longlong_t)dmu_objset_id(os), 1802 (u_longlong_t)dds.dds_creation_txg, 1803 numbuf, (u_longlong_t)usedobjs, blkbuf); 1804 1805 if (zopt_objects != 0) { 1806 for (i = 0; i < zopt_objects; i++) 1807 dump_object(os, zopt_object[i], verbosity, 1808 &print_header); 1809 (void) printf("\n"); 1810 return; 1811 } 1812 1813 if (dump_opt['i'] != 0 || verbosity >= 2) 1814 dump_intent_log(dmu_objset_zil(os)); 1815 1816 if (dmu_objset_ds(os) != NULL) 1817 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1818 1819 if (verbosity < 2) 1820 return; 1821 1822 if (os->os_rootbp->blk_birth == 0) 1823 return; 1824 1825 dump_object(os, 0, verbosity, &print_header); 1826 object_count = 0; 1827 if (DMU_USERUSED_DNODE(os) != NULL && 1828 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1829 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1830 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1831 } 1832 1833 object = 0; 1834 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1835 dump_object(os, object, verbosity, &print_header); 1836 object_count++; 1837 } 1838 1839 ASSERT3U(object_count, ==, usedobjs); 1840 1841 (void) printf("\n"); 1842 1843 if (error != ESRCH) { 1844 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1845 abort(); 1846 } 1847} 1848 1849static void 1850dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1851{ 1852 time_t timestamp = ub->ub_timestamp; 1853 1854 (void) printf(header ? header : ""); 1855 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1856 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1857 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1858 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1859 (void) printf("\ttimestamp = %llu UTC = %s", 1860 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1861 if (dump_opt['u'] >= 3) { 1862 char blkbuf[BP_SPRINTF_LEN]; 1863 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1864 (void) printf("\trootbp = %s\n", blkbuf); 1865 } 1866 (void) printf(footer ? footer : ""); 1867} 1868 1869static void 1870dump_config(spa_t *spa) 1871{ 1872 dmu_buf_t *db; 1873 size_t nvsize = 0; 1874 int error = 0; 1875 1876 1877 error = dmu_bonus_hold(spa->spa_meta_objset, 1878 spa->spa_config_object, FTAG, &db); 1879 1880 if (error == 0) { 1881 nvsize = *(uint64_t *)db->db_data; 1882 dmu_buf_rele(db, FTAG); 1883 1884 (void) printf("\nMOS Configuration:\n"); 1885 dump_packed_nvlist(spa->spa_meta_objset, 1886 spa->spa_config_object, (void *)&nvsize, 1); 1887 } else { 1888 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1889 (u_longlong_t)spa->spa_config_object, error); 1890 } 1891} 1892 1893static void 1894dump_cachefile(const char *cachefile) 1895{ 1896 int fd; 1897 struct stat64 statbuf; 1898 char *buf; 1899 nvlist_t *config; 1900 1901 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1902 (void) printf("cannot open '%s': %s\n", cachefile, 1903 strerror(errno)); 1904 exit(1); 1905 } 1906 1907 if (fstat64(fd, &statbuf) != 0) { 1908 (void) printf("failed to stat '%s': %s\n", cachefile, 1909 strerror(errno)); 1910 exit(1); 1911 } 1912 1913 if ((buf = malloc(statbuf.st_size)) == NULL) { 1914 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1915 (u_longlong_t)statbuf.st_size); 1916 exit(1); 1917 } 1918 1919 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1920 (void) fprintf(stderr, "failed to read %llu bytes\n", 1921 (u_longlong_t)statbuf.st_size); 1922 exit(1); 1923 } 1924 1925 (void) close(fd); 1926 1927 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1928 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1929 exit(1); 1930 } 1931 1932 free(buf); 1933 1934 dump_nvlist(config, 0); 1935 1936 nvlist_free(config); 1937} 1938 1939#define ZDB_MAX_UB_HEADER_SIZE 32 1940 1941static void 1942dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1943{ 1944 vdev_t vd; 1945 vdev_t *vdp = &vd; 1946 char header[ZDB_MAX_UB_HEADER_SIZE]; 1947 1948 vd.vdev_ashift = ashift; 1949 vdp->vdev_top = vdp; 1950 1951 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1952 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1953 uberblock_t *ub = (void *)((char *)lbl + uoff); 1954 1955 if (uberblock_verify(ub)) 1956 continue; 1957 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1958 "Uberblock[%d]\n", i); 1959 dump_uberblock(ub, header, ""); 1960 } 1961} 1962 1963static void 1964dump_label(const char *dev) 1965{ 1966 int fd; 1967 vdev_label_t label; 1968 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1969 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1970 struct stat64 statbuf; 1971 uint64_t psize, ashift; 1972 int len = strlen(dev) + 1; 1973 1974 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1975 len++; 1976 path = malloc(len); 1977 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1978 } else { 1979 path = strdup(dev); 1980 } 1981 1982 if ((fd = open64(path, O_RDONLY)) < 0) { 1983 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1984 free(path); 1985 exit(1); 1986 } 1987 1988 if (fstat64(fd, &statbuf) != 0) { 1989 (void) printf("failed to stat '%s': %s\n", path, 1990 strerror(errno)); 1991 free(path); 1992 (void) close(fd); 1993 exit(1); 1994 } 1995 1996 if (S_ISBLK(statbuf.st_mode)) { 1997 (void) printf("cannot use '%s': character device required\n", 1998 path); 1999 free(path); 2000 (void) close(fd); 2001 exit(1); 2002 } 2003 2004 psize = statbuf.st_size; 2005 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2006 2007 for (int l = 0; l < VDEV_LABELS; l++) { 2008 nvlist_t *config = NULL; 2009 2010 (void) printf("--------------------------------------------\n"); 2011 (void) printf("LABEL %d\n", l); 2012 (void) printf("--------------------------------------------\n"); 2013 2014 if (pread64(fd, &label, sizeof (label), 2015 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2016 (void) printf("failed to read label %d\n", l); 2017 continue; 2018 } 2019 2020 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2021 (void) printf("failed to unpack label %d\n", l); 2022 ashift = SPA_MINBLOCKSHIFT; 2023 } else { 2024 nvlist_t *vdev_tree = NULL; 2025 2026 dump_nvlist(config, 4); 2027 if ((nvlist_lookup_nvlist(config, 2028 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2029 (nvlist_lookup_uint64(vdev_tree, 2030 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2031 ashift = SPA_MINBLOCKSHIFT; 2032 nvlist_free(config); 2033 } 2034 if (dump_opt['u']) 2035 dump_label_uberblocks(&label, ashift); 2036 } 2037 2038 free(path); 2039 (void) close(fd); 2040} 2041 2042/*ARGSUSED*/ 2043static int 2044dump_one_dir(const char *dsname, void *arg) 2045{ 2046 int error; 2047 objset_t *os; 2048 2049 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2050 if (error) { 2051 (void) printf("Could not open %s, error %d\n", dsname, error); 2052 return (0); 2053 } 2054 dump_dir(os); 2055 dmu_objset_disown(os, FTAG); 2056 fuid_table_destroy(); 2057 sa_loaded = B_FALSE; 2058 return (0); 2059} 2060 2061/* 2062 * Block statistics. 2063 */ 2064#define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2065typedef struct zdb_blkstats { 2066 uint64_t zb_asize; 2067 uint64_t zb_lsize; 2068 uint64_t zb_psize; 2069 uint64_t zb_count; 2070 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2071} zdb_blkstats_t; 2072 2073/* 2074 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2075 */ 2076#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2077#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2078#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2079#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2080 2081static char *zdb_ot_extname[] = { 2082 "deferred free", 2083 "dedup ditto", 2084 "other", 2085 "Total", 2086}; 2087 2088#define ZB_TOTAL DN_MAX_LEVELS 2089 2090typedef struct zdb_cb { 2091 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2092 uint64_t zcb_dedup_asize; 2093 uint64_t zcb_dedup_blocks; 2094 uint64_t zcb_start; 2095 uint64_t zcb_lastprint; 2096 uint64_t zcb_totalasize; 2097 uint64_t zcb_errors[256]; 2098 int zcb_readfails; 2099 int zcb_haderrors; 2100 spa_t *zcb_spa; 2101} zdb_cb_t; 2102 2103static void 2104zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2105 dmu_object_type_t type) 2106{ 2107 uint64_t refcnt = 0; 2108 2109 ASSERT(type < ZDB_OT_TOTAL); 2110 2111 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2112 return; 2113 2114 for (int i = 0; i < 4; i++) { 2115 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2116 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2117 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2118 2119 zb->zb_asize += BP_GET_ASIZE(bp); 2120 zb->zb_lsize += BP_GET_LSIZE(bp); 2121 zb->zb_psize += BP_GET_PSIZE(bp); 2122 zb->zb_count++; 2123 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2124 } 2125 2126 if (dump_opt['L']) 2127 return; 2128 2129 if (BP_GET_DEDUP(bp)) { 2130 ddt_t *ddt; 2131 ddt_entry_t *dde; 2132 2133 ddt = ddt_select(zcb->zcb_spa, bp); 2134 ddt_enter(ddt); 2135 dde = ddt_lookup(ddt, bp, B_FALSE); 2136 2137 if (dde == NULL) { 2138 refcnt = 0; 2139 } else { 2140 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2141 ddt_phys_decref(ddp); 2142 refcnt = ddp->ddp_refcnt; 2143 if (ddt_phys_total_refcnt(dde) == 0) 2144 ddt_remove(ddt, dde); 2145 } 2146 ddt_exit(ddt); 2147 } 2148 2149 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2150 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2151 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2152} 2153 2154static int 2155zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2156 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2157{ 2158 zdb_cb_t *zcb = arg; 2159 char blkbuf[BP_SPRINTF_LEN]; 2160 dmu_object_type_t type; 2161 boolean_t is_metadata; 2162 2163 if (bp == NULL) 2164 return (0); 2165 2166 type = BP_GET_TYPE(bp); 2167 2168 zdb_count_block(zcb, zilog, bp, 2169 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2170 2171 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2172 2173 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2174 int ioerr; 2175 size_t size = BP_GET_PSIZE(bp); 2176 void *data = malloc(size); 2177 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2178 2179 /* If it's an intent log block, failure is expected. */ 2180 if (zb->zb_level == ZB_ZIL_LEVEL) 2181 flags |= ZIO_FLAG_SPECULATIVE; 2182 2183 ioerr = zio_wait(zio_read(NULL, spa, bp, data, size, 2184 NULL, NULL, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2185 2186 free(data); 2187 if (ioerr && !(flags & ZIO_FLAG_SPECULATIVE)) { 2188 zcb->zcb_haderrors = 1; 2189 zcb->zcb_errors[ioerr]++; 2190 2191 if (dump_opt['b'] >= 2) 2192 sprintf_blkptr(blkbuf, bp); 2193 else 2194 blkbuf[0] = '\0'; 2195 2196 (void) printf("zdb_blkptr_cb: " 2197 "Got error %d reading " 2198 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2199 ioerr, 2200 (u_longlong_t)zb->zb_objset, 2201 (u_longlong_t)zb->zb_object, 2202 (u_longlong_t)zb->zb_level, 2203 (u_longlong_t)zb->zb_blkid, 2204 blkbuf); 2205 } 2206 } 2207 2208 zcb->zcb_readfails = 0; 2209 2210 if (dump_opt['b'] >= 5) { 2211 sprintf_blkptr(blkbuf, bp); 2212 (void) printf("objset %llu object %llu " 2213 "level %lld offset 0x%llx %s\n", 2214 (u_longlong_t)zb->zb_objset, 2215 (u_longlong_t)zb->zb_object, 2216 (longlong_t)zb->zb_level, 2217 (u_longlong_t)blkid2offset(dnp, bp, zb), 2218 blkbuf); 2219 } 2220 2221 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2222 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2223 uint64_t now = gethrtime(); 2224 char buf[10]; 2225 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2226 int kb_per_sec = 2227 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2228 int sec_remaining = 2229 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2230 2231 zfs_nicenum(bytes, buf, sizeof (buf)); 2232 (void) fprintf(stderr, 2233 "\r%5s completed (%4dMB/s) " 2234 "estimated time remaining: %uhr %02umin %02usec ", 2235 buf, kb_per_sec / 1024, 2236 sec_remaining / 60 / 60, 2237 sec_remaining / 60 % 60, 2238 sec_remaining % 60); 2239 2240 zcb->zcb_lastprint = now; 2241 } 2242 2243 return (0); 2244} 2245 2246static void 2247zdb_leak(void *arg, uint64_t start, uint64_t size) 2248{ 2249 vdev_t *vd = arg; 2250 2251 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2252 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2253} 2254 2255static metaslab_ops_t zdb_metaslab_ops = { 2256 NULL, /* alloc */ 2257 NULL /* fragmented */ 2258}; 2259 2260static void 2261zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2262{ 2263 ddt_bookmark_t ddb = { 0 }; 2264 ddt_entry_t dde; 2265 int error; 2266 2267 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2268 blkptr_t blk; 2269 ddt_phys_t *ddp = dde.dde_phys; 2270 2271 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2272 return; 2273 2274 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2275 2276 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2277 if (ddp->ddp_phys_birth == 0) 2278 continue; 2279 ddt_bp_create(ddb.ddb_checksum, 2280 &dde.dde_key, ddp, &blk); 2281 if (p == DDT_PHYS_DITTO) { 2282 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2283 } else { 2284 zcb->zcb_dedup_asize += 2285 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2286 zcb->zcb_dedup_blocks++; 2287 } 2288 } 2289 if (!dump_opt['L']) { 2290 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2291 ddt_enter(ddt); 2292 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2293 ddt_exit(ddt); 2294 } 2295 } 2296 2297 ASSERT(error == ENOENT); 2298} 2299 2300static void 2301zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2302{ 2303 zcb->zcb_spa = spa; 2304 2305 if (!dump_opt['L']) { 2306 vdev_t *rvd = spa->spa_root_vdev; 2307 for (int c = 0; c < rvd->vdev_children; c++) { 2308 vdev_t *vd = rvd->vdev_child[c]; 2309 for (int m = 0; m < vd->vdev_ms_count; m++) { 2310 metaslab_t *msp = vd->vdev_ms[m]; 2311 mutex_enter(&msp->ms_lock); 2312 metaslab_unload(msp); 2313 2314 /* 2315 * For leak detection, we overload the metaslab 2316 * ms_tree to contain allocated segments 2317 * instead of free segments. As a result, 2318 * we can't use the normal metaslab_load/unload 2319 * interfaces. 2320 */ 2321 if (msp->ms_sm != NULL) { 2322 msp->ms_ops = &zdb_metaslab_ops; 2323 VERIFY0(space_map_load(msp->ms_sm, 2324 msp->ms_tree, SM_ALLOC)); 2325 msp->ms_loaded = B_TRUE; 2326 } 2327 mutex_exit(&msp->ms_lock); 2328 } 2329 } 2330 } 2331 2332 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2333 2334 zdb_ddt_leak_init(spa, zcb); 2335 2336 spa_config_exit(spa, SCL_CONFIG, FTAG); 2337} 2338 2339static void 2340zdb_leak_fini(spa_t *spa) 2341{ 2342 if (!dump_opt['L']) { 2343 vdev_t *rvd = spa->spa_root_vdev; 2344 for (int c = 0; c < rvd->vdev_children; c++) { 2345 vdev_t *vd = rvd->vdev_child[c]; 2346 for (int m = 0; m < vd->vdev_ms_count; m++) { 2347 metaslab_t *msp = vd->vdev_ms[m]; 2348 mutex_enter(&msp->ms_lock); 2349 2350 /* 2351 * The ms_tree has been overloaded to 2352 * contain allocated segments. Now that we 2353 * finished traversing all blocks, any 2354 * block that remains in the ms_tree 2355 * represents an allocated block that we 2356 * did not claim during the traversal. 2357 * Claimed blocks would have been removed 2358 * from the ms_tree. 2359 */ 2360 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2361 msp->ms_loaded = B_FALSE; 2362 2363 mutex_exit(&msp->ms_lock); 2364 } 2365 } 2366 } 2367} 2368 2369/* ARGSUSED */ 2370static int 2371count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2372{ 2373 zdb_cb_t *zcb = arg; 2374 2375 if (dump_opt['b'] >= 5) { 2376 char blkbuf[BP_SPRINTF_LEN]; 2377 sprintf_blkptr(blkbuf, bp); 2378 (void) printf("[%s] %s\n", 2379 "deferred free", blkbuf); 2380 } 2381 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2382 return (0); 2383} 2384 2385static int 2386dump_block_stats(spa_t *spa) 2387{ 2388 zdb_cb_t zcb = { 0 }; 2389 zdb_blkstats_t *zb, *tzb; 2390 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2391 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2392 int leaks = 0; 2393 2394 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2395 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2396 (dump_opt['c'] == 1) ? "metadata " : "", 2397 dump_opt['c'] ? "checksums " : "", 2398 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2399 !dump_opt['L'] ? "nothing leaked " : ""); 2400 2401 /* 2402 * Load all space maps as SM_ALLOC maps, then traverse the pool 2403 * claiming each block we discover. If the pool is perfectly 2404 * consistent, the space maps will be empty when we're done. 2405 * Anything left over is a leak; any block we can't claim (because 2406 * it's not part of any space map) is a double allocation, 2407 * reference to a freed block, or an unclaimed log block. 2408 */ 2409 zdb_leak_init(spa, &zcb); 2410 2411 /* 2412 * If there's a deferred-free bplist, process that first. 2413 */ 2414 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2415 count_block_cb, &zcb, NULL); 2416 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2417 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2418 count_block_cb, &zcb, NULL); 2419 } 2420 if (spa_feature_is_active(spa, 2421 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) { 2422 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2423 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2424 &zcb, NULL)); 2425 } 2426 2427 if (dump_opt['c'] > 1) 2428 flags |= TRAVERSE_PREFETCH_DATA; 2429 2430 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2431 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2432 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2433 2434 if (zcb.zcb_haderrors) { 2435 (void) printf("\nError counts:\n\n"); 2436 (void) printf("\t%5s %s\n", "errno", "count"); 2437 for (int e = 0; e < 256; e++) { 2438 if (zcb.zcb_errors[e] != 0) { 2439 (void) printf("\t%5d %llu\n", 2440 e, (u_longlong_t)zcb.zcb_errors[e]); 2441 } 2442 } 2443 } 2444 2445 /* 2446 * Report any leaked segments. 2447 */ 2448 zdb_leak_fini(spa); 2449 2450 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2451 2452 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2453 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2454 2455 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2456 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2457 2458 if (total_found == total_alloc) { 2459 if (!dump_opt['L']) 2460 (void) printf("\n\tNo leaks (block sum matches space" 2461 " maps exactly)\n"); 2462 } else { 2463 (void) printf("block traversal size %llu != alloc %llu " 2464 "(%s %lld)\n", 2465 (u_longlong_t)total_found, 2466 (u_longlong_t)total_alloc, 2467 (dump_opt['L']) ? "unreachable" : "leaked", 2468 (longlong_t)(total_alloc - total_found)); 2469 leaks = 1; 2470 } 2471 2472 if (tzb->zb_count == 0) 2473 return (2); 2474 2475 (void) printf("\n"); 2476 (void) printf("\tbp count: %10llu\n", 2477 (u_longlong_t)tzb->zb_count); 2478 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2479 (u_longlong_t)tzb->zb_lsize, 2480 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2481 (void) printf("\tbp physical: %10llu avg:" 2482 " %6llu compression: %6.2f\n", 2483 (u_longlong_t)tzb->zb_psize, 2484 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2485 (double)tzb->zb_lsize / tzb->zb_psize); 2486 (void) printf("\tbp allocated: %10llu avg:" 2487 " %6llu compression: %6.2f\n", 2488 (u_longlong_t)tzb->zb_asize, 2489 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2490 (double)tzb->zb_lsize / tzb->zb_asize); 2491 (void) printf("\tbp deduped: %10llu ref>1:" 2492 " %6llu deduplication: %6.2f\n", 2493 (u_longlong_t)zcb.zcb_dedup_asize, 2494 (u_longlong_t)zcb.zcb_dedup_blocks, 2495 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2496 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2497 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2498 2499 if (dump_opt['b'] >= 2) { 2500 int l, t, level; 2501 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2502 "\t avg\t comp\t%%Total\tType\n"); 2503 2504 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2505 char csize[32], lsize[32], psize[32], asize[32]; 2506 char avg[32]; 2507 char *typename; 2508 2509 if (t < DMU_OT_NUMTYPES) 2510 typename = dmu_ot[t].ot_name; 2511 else 2512 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2513 2514 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2515 (void) printf("%6s\t%5s\t%5s\t%5s" 2516 "\t%5s\t%5s\t%6s\t%s\n", 2517 "-", 2518 "-", 2519 "-", 2520 "-", 2521 "-", 2522 "-", 2523 "-", 2524 typename); 2525 continue; 2526 } 2527 2528 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2529 level = (l == -1 ? ZB_TOTAL : l); 2530 zb = &zcb.zcb_type[level][t]; 2531 2532 if (zb->zb_asize == 0) 2533 continue; 2534 2535 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2536 continue; 2537 2538 if (level == 0 && zb->zb_asize == 2539 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2540 continue; 2541 2542 zdb_nicenum(zb->zb_count, csize); 2543 zdb_nicenum(zb->zb_lsize, lsize); 2544 zdb_nicenum(zb->zb_psize, psize); 2545 zdb_nicenum(zb->zb_asize, asize); 2546 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2547 2548 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2549 "\t%5.2f\t%6.2f\t", 2550 csize, lsize, psize, asize, avg, 2551 (double)zb->zb_lsize / zb->zb_psize, 2552 100.0 * zb->zb_asize / tzb->zb_asize); 2553 2554 if (level == ZB_TOTAL) 2555 (void) printf("%s\n", typename); 2556 else 2557 (void) printf(" L%d %s\n", 2558 level, typename); 2559 2560 if (dump_opt['b'] >= 4) { 2561 (void) printf("psize " 2562 "(in 512-byte sectors): " 2563 "number of blocks\n"); 2564 dump_histogram(zb->zb_psize_histogram, 2565 PSIZE_HISTO_SIZE, 0); 2566 } 2567 } 2568 } 2569 } 2570 2571 (void) printf("\n"); 2572 2573 if (leaks) 2574 return (2); 2575 2576 if (zcb.zcb_haderrors) 2577 return (3); 2578 2579 return (0); 2580} 2581 2582typedef struct zdb_ddt_entry { 2583 ddt_key_t zdde_key; 2584 uint64_t zdde_ref_blocks; 2585 uint64_t zdde_ref_lsize; 2586 uint64_t zdde_ref_psize; 2587 uint64_t zdde_ref_dsize; 2588 avl_node_t zdde_node; 2589} zdb_ddt_entry_t; 2590 2591/* ARGSUSED */ 2592static int 2593zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2594 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2595{ 2596 avl_tree_t *t = arg; 2597 avl_index_t where; 2598 zdb_ddt_entry_t *zdde, zdde_search; 2599 2600 if (bp == NULL) 2601 return (0); 2602 2603 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2604 (void) printf("traversing objset %llu, %llu objects, " 2605 "%lu blocks so far\n", 2606 (u_longlong_t)zb->zb_objset, 2607 (u_longlong_t)bp->blk_fill, 2608 avl_numnodes(t)); 2609 } 2610 2611 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2612 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2613 return (0); 2614 2615 ddt_key_fill(&zdde_search.zdde_key, bp); 2616 2617 zdde = avl_find(t, &zdde_search, &where); 2618 2619 if (zdde == NULL) { 2620 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2621 zdde->zdde_key = zdde_search.zdde_key; 2622 avl_insert(t, zdde, where); 2623 } 2624 2625 zdde->zdde_ref_blocks += 1; 2626 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2627 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2628 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2629 2630 return (0); 2631} 2632 2633static void 2634dump_simulated_ddt(spa_t *spa) 2635{ 2636 avl_tree_t t; 2637 void *cookie = NULL; 2638 zdb_ddt_entry_t *zdde; 2639 ddt_histogram_t ddh_total = { 0 }; 2640 ddt_stat_t dds_total = { 0 }; 2641 2642 avl_create(&t, ddt_entry_compare, 2643 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2644 2645 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2646 2647 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2648 zdb_ddt_add_cb, &t); 2649 2650 spa_config_exit(spa, SCL_CONFIG, FTAG); 2651 2652 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2653 ddt_stat_t dds; 2654 uint64_t refcnt = zdde->zdde_ref_blocks; 2655 ASSERT(refcnt != 0); 2656 2657 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2658 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2659 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2660 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2661 2662 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2663 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2664 dds.dds_ref_psize = zdde->zdde_ref_psize; 2665 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2666 2667 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2668 2669 umem_free(zdde, sizeof (*zdde)); 2670 } 2671 2672 avl_destroy(&t); 2673 2674 ddt_histogram_stat(&dds_total, &ddh_total); 2675 2676 (void) printf("Simulated DDT histogram:\n"); 2677 2678 zpool_dump_ddt(&dds_total, &ddh_total); 2679 2680 dump_dedup_ratio(&dds_total); 2681} 2682 2683static void 2684dump_zpool(spa_t *spa) 2685{ 2686 dsl_pool_t *dp = spa_get_dsl(spa); 2687 int rc = 0; 2688 2689 if (dump_opt['S']) { 2690 dump_simulated_ddt(spa); 2691 return; 2692 } 2693 2694 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2695 (void) printf("\nCached configuration:\n"); 2696 dump_nvlist(spa->spa_config, 8); 2697 } 2698 2699 if (dump_opt['C']) 2700 dump_config(spa); 2701 2702 if (dump_opt['u']) 2703 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2704 2705 if (dump_opt['D']) 2706 dump_all_ddts(spa); 2707 2708 if (dump_opt['d'] > 2 || dump_opt['m']) 2709 dump_metaslabs(spa); 2710 2711 if (dump_opt['d'] || dump_opt['i']) { 2712 dump_dir(dp->dp_meta_objset); 2713 if (dump_opt['d'] >= 3) { 2714 dump_bpobj(&spa->spa_deferred_bpobj, 2715 "Deferred frees", 0); 2716 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2717 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2718 "Pool snapshot frees", 0); 2719 } 2720 2721 if (spa_feature_is_active(spa, 2722 &spa_feature_table[SPA_FEATURE_ASYNC_DESTROY])) { 2723 dump_bptree(spa->spa_meta_objset, 2724 spa->spa_dsl_pool->dp_bptree_obj, 2725 "Pool dataset frees"); 2726 } 2727 dump_dtl(spa->spa_root_vdev, 0); 2728 } 2729 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2730 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2731 } 2732 if (dump_opt['b'] || dump_opt['c']) 2733 rc = dump_block_stats(spa); 2734 2735 if (rc == 0) 2736 rc = verify_spacemap_refcounts(spa); 2737 2738 if (dump_opt['s']) 2739 show_pool_stats(spa); 2740 2741 if (dump_opt['h']) 2742 dump_history(spa); 2743 2744 if (rc != 0) 2745 exit(rc); 2746} 2747 2748#define ZDB_FLAG_CHECKSUM 0x0001 2749#define ZDB_FLAG_DECOMPRESS 0x0002 2750#define ZDB_FLAG_BSWAP 0x0004 2751#define ZDB_FLAG_GBH 0x0008 2752#define ZDB_FLAG_INDIRECT 0x0010 2753#define ZDB_FLAG_PHYS 0x0020 2754#define ZDB_FLAG_RAW 0x0040 2755#define ZDB_FLAG_PRINT_BLKPTR 0x0080 2756 2757int flagbits[256]; 2758 2759static void 2760zdb_print_blkptr(blkptr_t *bp, int flags) 2761{ 2762 char blkbuf[BP_SPRINTF_LEN]; 2763 2764 if (flags & ZDB_FLAG_BSWAP) 2765 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2766 2767 sprintf_blkptr(blkbuf, bp); 2768 (void) printf("%s\n", blkbuf); 2769} 2770 2771static void 2772zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2773{ 2774 int i; 2775 2776 for (i = 0; i < nbps; i++) 2777 zdb_print_blkptr(&bp[i], flags); 2778} 2779 2780static void 2781zdb_dump_gbh(void *buf, int flags) 2782{ 2783 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2784} 2785 2786static void 2787zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2788{ 2789 if (flags & ZDB_FLAG_BSWAP) 2790 byteswap_uint64_array(buf, size); 2791 (void) write(1, buf, size); 2792} 2793 2794static void 2795zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2796{ 2797 uint64_t *d = (uint64_t *)buf; 2798 int nwords = size / sizeof (uint64_t); 2799 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2800 int i, j; 2801 char *hdr, *c; 2802 2803 2804 if (do_bswap) 2805 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2806 else 2807 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2808 2809 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2810 2811 for (i = 0; i < nwords; i += 2) { 2812 (void) printf("%06llx: %016llx %016llx ", 2813 (u_longlong_t)(i * sizeof (uint64_t)), 2814 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2815 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2816 2817 c = (char *)&d[i]; 2818 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2819 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2820 (void) printf("\n"); 2821 } 2822} 2823 2824/* 2825 * There are two acceptable formats: 2826 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2827 * child[.child]* - For example: 0.1.1 2828 * 2829 * The second form can be used to specify arbitrary vdevs anywhere 2830 * in the heirarchy. For example, in a pool with a mirror of 2831 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2832 */ 2833static vdev_t * 2834zdb_vdev_lookup(vdev_t *vdev, char *path) 2835{ 2836 char *s, *p, *q; 2837 int i; 2838 2839 if (vdev == NULL) 2840 return (NULL); 2841 2842 /* First, assume the x.x.x.x format */ 2843 i = (int)strtoul(path, &s, 10); 2844 if (s == path || (s && *s != '.' && *s != '\0')) 2845 goto name; 2846 if (i < 0 || i >= vdev->vdev_children) 2847 return (NULL); 2848 2849 vdev = vdev->vdev_child[i]; 2850 if (*s == '\0') 2851 return (vdev); 2852 return (zdb_vdev_lookup(vdev, s+1)); 2853 2854name: 2855 for (i = 0; i < vdev->vdev_children; i++) { 2856 vdev_t *vc = vdev->vdev_child[i]; 2857 2858 if (vc->vdev_path == NULL) { 2859 vc = zdb_vdev_lookup(vc, path); 2860 if (vc == NULL) 2861 continue; 2862 else 2863 return (vc); 2864 } 2865 2866 p = strrchr(vc->vdev_path, '/'); 2867 p = p ? p + 1 : vc->vdev_path; 2868 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2869 2870 if (strcmp(vc->vdev_path, path) == 0) 2871 return (vc); 2872 if (strcmp(p, path) == 0) 2873 return (vc); 2874 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2875 return (vc); 2876 } 2877 2878 return (NULL); 2879} 2880 2881/* 2882 * Read a block from a pool and print it out. The syntax of the 2883 * block descriptor is: 2884 * 2885 * pool:vdev_specifier:offset:size[:flags] 2886 * 2887 * pool - The name of the pool you wish to read from 2888 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2889 * offset - offset, in hex, in bytes 2890 * size - Amount of data to read, in hex, in bytes 2891 * flags - A string of characters specifying options 2892 * b: Decode a blkptr at given offset within block 2893 * *c: Calculate and display checksums 2894 * d: Decompress data before dumping 2895 * e: Byteswap data before dumping 2896 * g: Display data as a gang block header 2897 * i: Display as an indirect block 2898 * p: Do I/O to physical offset 2899 * r: Dump raw data to stdout 2900 * 2901 * * = not yet implemented 2902 */ 2903static void 2904zdb_read_block(char *thing, spa_t *spa) 2905{ 2906 blkptr_t blk, *bp = &blk; 2907 dva_t *dva = bp->blk_dva; 2908 int flags = 0; 2909 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2910 zio_t *zio; 2911 vdev_t *vd; 2912 void *pbuf, *lbuf, *buf; 2913 char *s, *p, *dup, *vdev, *flagstr; 2914 int i, error; 2915 2916 dup = strdup(thing); 2917 s = strtok(dup, ":"); 2918 vdev = s ? s : ""; 2919 s = strtok(NULL, ":"); 2920 offset = strtoull(s ? s : "", NULL, 16); 2921 s = strtok(NULL, ":"); 2922 size = strtoull(s ? s : "", NULL, 16); 2923 s = strtok(NULL, ":"); 2924 flagstr = s ? s : ""; 2925 2926 s = NULL; 2927 if (size == 0) 2928 s = "size must not be zero"; 2929 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 2930 s = "size must be a multiple of sector size"; 2931 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 2932 s = "offset must be a multiple of sector size"; 2933 if (s) { 2934 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 2935 free(dup); 2936 return; 2937 } 2938 2939 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 2940 for (i = 0; flagstr[i]; i++) { 2941 int bit = flagbits[(uchar_t)flagstr[i]]; 2942 2943 if (bit == 0) { 2944 (void) printf("***Invalid flag: %c\n", 2945 flagstr[i]); 2946 continue; 2947 } 2948 flags |= bit; 2949 2950 /* If it's not something with an argument, keep going */ 2951 if ((bit & (ZDB_FLAG_CHECKSUM | 2952 ZDB_FLAG_PRINT_BLKPTR)) == 0) 2953 continue; 2954 2955 p = &flagstr[i + 1]; 2956 if (bit == ZDB_FLAG_PRINT_BLKPTR) 2957 blkptr_offset = strtoull(p, &p, 16); 2958 if (*p != ':' && *p != '\0') { 2959 (void) printf("***Invalid flag arg: '%s'\n", s); 2960 free(dup); 2961 return; 2962 } 2963 } 2964 } 2965 2966 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 2967 if (vd == NULL) { 2968 (void) printf("***Invalid vdev: %s\n", vdev); 2969 free(dup); 2970 return; 2971 } else { 2972 if (vd->vdev_path) 2973 (void) fprintf(stderr, "Found vdev: %s\n", 2974 vd->vdev_path); 2975 else 2976 (void) fprintf(stderr, "Found vdev type: %s\n", 2977 vd->vdev_ops->vdev_op_type); 2978 } 2979 2980 psize = size; 2981 lsize = size; 2982 2983 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2984 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 2985 2986 BP_ZERO(bp); 2987 2988 DVA_SET_VDEV(&dva[0], vd->vdev_id); 2989 DVA_SET_OFFSET(&dva[0], offset); 2990 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 2991 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 2992 2993 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 2994 2995 BP_SET_LSIZE(bp, lsize); 2996 BP_SET_PSIZE(bp, psize); 2997 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 2998 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 2999 BP_SET_TYPE(bp, DMU_OT_NONE); 3000 BP_SET_LEVEL(bp, 0); 3001 BP_SET_DEDUP(bp, 0); 3002 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3003 3004 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3005 zio = zio_root(spa, NULL, NULL, 0); 3006 3007 if (vd == vd->vdev_top) { 3008 /* 3009 * Treat this as a normal block read. 3010 */ 3011 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3012 ZIO_PRIORITY_SYNC_READ, 3013 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3014 } else { 3015 /* 3016 * Treat this as a vdev child I/O. 3017 */ 3018 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3019 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3020 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3021 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3022 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3023 } 3024 3025 error = zio_wait(zio); 3026 spa_config_exit(spa, SCL_STATE, FTAG); 3027 3028 if (error) { 3029 (void) printf("Read of %s failed, error: %d\n", thing, error); 3030 goto out; 3031 } 3032 3033 if (flags & ZDB_FLAG_DECOMPRESS) { 3034 /* 3035 * We don't know how the data was compressed, so just try 3036 * every decompress function at every inflated blocksize. 3037 */ 3038 enum zio_compress c; 3039 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3040 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3041 3042 bcopy(pbuf, pbuf2, psize); 3043 3044 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3045 SPA_MAXBLOCKSIZE - psize) == 0); 3046 3047 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3048 SPA_MAXBLOCKSIZE - psize) == 0); 3049 3050 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3051 lsize -= SPA_MINBLOCKSIZE) { 3052 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3053 if (zio_decompress_data(c, pbuf, lbuf, 3054 psize, lsize) == 0 && 3055 zio_decompress_data(c, pbuf2, lbuf2, 3056 psize, lsize) == 0 && 3057 bcmp(lbuf, lbuf2, lsize) == 0) 3058 break; 3059 } 3060 if (c != ZIO_COMPRESS_FUNCTIONS) 3061 break; 3062 lsize -= SPA_MINBLOCKSIZE; 3063 } 3064 3065 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3066 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3067 3068 if (lsize <= psize) { 3069 (void) printf("Decompress of %s failed\n", thing); 3070 goto out; 3071 } 3072 buf = lbuf; 3073 size = lsize; 3074 } else { 3075 buf = pbuf; 3076 size = psize; 3077 } 3078 3079 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3080 zdb_print_blkptr((blkptr_t *)(void *) 3081 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3082 else if (flags & ZDB_FLAG_RAW) 3083 zdb_dump_block_raw(buf, size, flags); 3084 else if (flags & ZDB_FLAG_INDIRECT) 3085 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3086 flags); 3087 else if (flags & ZDB_FLAG_GBH) 3088 zdb_dump_gbh(buf, flags); 3089 else 3090 zdb_dump_block(thing, buf, size, flags); 3091 3092out: 3093 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3094 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3095 free(dup); 3096} 3097 3098static boolean_t 3099pool_match(nvlist_t *cfg, char *tgt) 3100{ 3101 uint64_t v, guid = strtoull(tgt, NULL, 0); 3102 char *s; 3103 3104 if (guid != 0) { 3105 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3106 return (v == guid); 3107 } else { 3108 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3109 return (strcmp(s, tgt) == 0); 3110 } 3111 return (B_FALSE); 3112} 3113 3114static char * 3115find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3116{ 3117 nvlist_t *pools; 3118 nvlist_t *match = NULL; 3119 char *name = NULL; 3120 char *sepp = NULL; 3121 char sep; 3122 int count = 0; 3123 importargs_t args = { 0 }; 3124 3125 args.paths = dirc; 3126 args.path = dirv; 3127 args.can_be_active = B_TRUE; 3128 3129 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3130 sep = *sepp; 3131 *sepp = '\0'; 3132 } 3133 3134 pools = zpool_search_import(g_zfs, &args); 3135 3136 if (pools != NULL) { 3137 nvpair_t *elem = NULL; 3138 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3139 verify(nvpair_value_nvlist(elem, configp) == 0); 3140 if (pool_match(*configp, *target)) { 3141 count++; 3142 if (match != NULL) { 3143 /* print previously found config */ 3144 if (name != NULL) { 3145 (void) printf("%s\n", name); 3146 dump_nvlist(match, 8); 3147 name = NULL; 3148 } 3149 (void) printf("%s\n", 3150 nvpair_name(elem)); 3151 dump_nvlist(*configp, 8); 3152 } else { 3153 match = *configp; 3154 name = nvpair_name(elem); 3155 } 3156 } 3157 } 3158 } 3159 if (count > 1) 3160 (void) fatal("\tMatched %d pools - use pool GUID " 3161 "instead of pool name or \n" 3162 "\tpool name part of a dataset name to select pool", count); 3163 3164 if (sepp) 3165 *sepp = sep; 3166 /* 3167 * If pool GUID was specified for pool id, replace it with pool name 3168 */ 3169 if (name && (strstr(*target, name) != *target)) { 3170 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3171 3172 *target = umem_alloc(sz, UMEM_NOFAIL); 3173 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3174 } 3175 3176 *configp = name ? match : NULL; 3177 3178 return (name); 3179} 3180 3181int 3182main(int argc, char **argv) 3183{ 3184 int i, c; 3185 struct rlimit rl = { 1024, 1024 }; 3186 spa_t *spa = NULL; 3187 objset_t *os = NULL; 3188 int dump_all = 1; 3189 int verbose = 0; 3190 int error = 0; 3191 char **searchdirs = NULL; 3192 int nsearch = 0; 3193 char *target; 3194 nvlist_t *policy = NULL; 3195 uint64_t max_txg = UINT64_MAX; 3196 int rewind = ZPOOL_NEVER_REWIND; 3197 3198 (void) setrlimit(RLIMIT_NOFILE, &rl); 3199 (void) enable_extended_FILE_stdio(-1, -1); 3200 3201 dprintf_setup(&argc, argv); 3202 3203 while ((c = getopt(argc, argv, "bcdhilmsuCDRSAFLXevp:t:U:P")) != -1) { 3204 switch (c) { 3205 case 'b': 3206 case 'c': 3207 case 'd': 3208 case 'h': 3209 case 'i': 3210 case 'l': 3211 case 'm': 3212 case 's': 3213 case 'u': 3214 case 'C': 3215 case 'D': 3216 case 'R': 3217 case 'S': 3218 dump_opt[c]++; 3219 dump_all = 0; 3220 break; 3221 case 'A': 3222 case 'F': 3223 case 'L': 3224 case 'X': 3225 case 'e': 3226 case 'P': 3227 dump_opt[c]++; 3228 break; 3229 case 'v': 3230 verbose++; 3231 break; 3232 case 'p': 3233 if (searchdirs == NULL) { 3234 searchdirs = umem_alloc(sizeof (char *), 3235 UMEM_NOFAIL); 3236 } else { 3237 char **tmp = umem_alloc((nsearch + 1) * 3238 sizeof (char *), UMEM_NOFAIL); 3239 bcopy(searchdirs, tmp, nsearch * 3240 sizeof (char *)); 3241 umem_free(searchdirs, 3242 nsearch * sizeof (char *)); 3243 searchdirs = tmp; 3244 } 3245 searchdirs[nsearch++] = optarg; 3246 break; 3247 case 't': 3248 max_txg = strtoull(optarg, NULL, 0); 3249 if (max_txg < TXG_INITIAL) { 3250 (void) fprintf(stderr, "incorrect txg " 3251 "specified: %s\n", optarg); 3252 usage(); 3253 } 3254 break; 3255 case 'U': 3256 spa_config_path = optarg; 3257 break; 3258 default: 3259 usage(); 3260 break; 3261 } 3262 } 3263 3264 if (!dump_opt['e'] && searchdirs != NULL) { 3265 (void) fprintf(stderr, "-p option requires use of -e\n"); 3266 usage(); 3267 } 3268 3269 kernel_init(FREAD); 3270 g_zfs = libzfs_init(); 3271 ASSERT(g_zfs != NULL); 3272 3273 if (dump_all) 3274 verbose = MAX(verbose, 1); 3275 3276 for (c = 0; c < 256; c++) { 3277 if (dump_all && !strchr("elAFLRSXP", c)) 3278 dump_opt[c] = 1; 3279 if (dump_opt[c]) 3280 dump_opt[c] += verbose; 3281 } 3282 3283 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3284 zfs_recover = (dump_opt['A'] > 1); 3285 3286 argc -= optind; 3287 argv += optind; 3288 3289 if (argc < 2 && dump_opt['R']) 3290 usage(); 3291 if (argc < 1) { 3292 if (!dump_opt['e'] && dump_opt['C']) { 3293 dump_cachefile(spa_config_path); 3294 return (0); 3295 } 3296 usage(); 3297 } 3298 3299 if (dump_opt['l']) { 3300 dump_label(argv[0]); 3301 return (0); 3302 } 3303 3304 if (dump_opt['X'] || dump_opt['F']) 3305 rewind = ZPOOL_DO_REWIND | 3306 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3307 3308 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3309 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3310 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3311 fatal("internal error: %s", strerror(ENOMEM)); 3312 3313 error = 0; 3314 target = argv[0]; 3315 3316 if (dump_opt['e']) { 3317 nvlist_t *cfg = NULL; 3318 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3319 3320 error = ENOENT; 3321 if (name) { 3322 if (dump_opt['C'] > 1) { 3323 (void) printf("\nConfiguration for import:\n"); 3324 dump_nvlist(cfg, 8); 3325 } 3326 if (nvlist_add_nvlist(cfg, 3327 ZPOOL_REWIND_POLICY, policy) != 0) { 3328 fatal("can't open '%s': %s", 3329 target, strerror(ENOMEM)); 3330 } 3331 if ((error = spa_import(name, cfg, NULL, 3332 ZFS_IMPORT_MISSING_LOG)) != 0) { 3333 error = spa_import(name, cfg, NULL, 3334 ZFS_IMPORT_VERBATIM); 3335 } 3336 } 3337 } 3338 3339 if (error == 0) { 3340 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3341 error = spa_open_rewind(target, &spa, FTAG, policy, 3342 NULL); 3343 if (error) { 3344 /* 3345 * If we're missing the log device then 3346 * try opening the pool after clearing the 3347 * log state. 3348 */ 3349 mutex_enter(&spa_namespace_lock); 3350 if ((spa = spa_lookup(target)) != NULL && 3351 spa->spa_log_state == SPA_LOG_MISSING) { 3352 spa->spa_log_state = SPA_LOG_CLEAR; 3353 error = 0; 3354 } 3355 mutex_exit(&spa_namespace_lock); 3356 3357 if (!error) { 3358 error = spa_open_rewind(target, &spa, 3359 FTAG, policy, NULL); 3360 } 3361 } 3362 } else { 3363 error = dmu_objset_own(target, DMU_OST_ANY, 3364 B_TRUE, FTAG, &os); 3365 } 3366 } 3367 nvlist_free(policy); 3368 3369 if (error) 3370 fatal("can't open '%s': %s", target, strerror(error)); 3371 3372 argv++; 3373 argc--; 3374 if (!dump_opt['R']) { 3375 if (argc > 0) { 3376 zopt_objects = argc; 3377 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3378 for (i = 0; i < zopt_objects; i++) { 3379 errno = 0; 3380 zopt_object[i] = strtoull(argv[i], NULL, 0); 3381 if (zopt_object[i] == 0 && errno != 0) 3382 fatal("bad number %s: %s", 3383 argv[i], strerror(errno)); 3384 } 3385 } 3386 if (os != NULL) { 3387 dump_dir(os); 3388 } else if (zopt_objects > 0 && !dump_opt['m']) { 3389 dump_dir(spa->spa_meta_objset); 3390 } else { 3391 dump_zpool(spa); 3392 } 3393 } else { 3394 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3395 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3396 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3397 flagbits['e'] = ZDB_FLAG_BSWAP; 3398 flagbits['g'] = ZDB_FLAG_GBH; 3399 flagbits['i'] = ZDB_FLAG_INDIRECT; 3400 flagbits['p'] = ZDB_FLAG_PHYS; 3401 flagbits['r'] = ZDB_FLAG_RAW; 3402 3403 for (i = 0; i < argc; i++) 3404 zdb_read_block(argv[i], spa); 3405 } 3406 3407 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3408 3409 fuid_table_destroy(); 3410 sa_loaded = B_FALSE; 3411 3412 libzfs_fini(g_zfs); 3413 kernel_fini(); 3414 3415 return (0); 3416} 3417