zdb.c revision 326336
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 25 * Copyright (c) 2014 Integros [integros.com] 26 * Copyright 2016 Nexenta Systems, Inc. 27 */ 28 29#include <stdio.h> 30#include <unistd.h> 31#include <stdio_ext.h> 32#include <stdlib.h> 33#include <ctype.h> 34#include <sys/zfs_context.h> 35#include <sys/spa.h> 36#include <sys/spa_impl.h> 37#include <sys/dmu.h> 38#include <sys/zap.h> 39#include <sys/fs/zfs.h> 40#include <sys/zfs_znode.h> 41#include <sys/zfs_sa.h> 42#include <sys/sa.h> 43#include <sys/sa_impl.h> 44#include <sys/vdev.h> 45#include <sys/vdev_impl.h> 46#include <sys/metaslab_impl.h> 47#include <sys/dmu_objset.h> 48#include <sys/dsl_dir.h> 49#include <sys/dsl_dataset.h> 50#include <sys/dsl_pool.h> 51#include <sys/dbuf.h> 52#include <sys/zil.h> 53#include <sys/zil_impl.h> 54#include <sys/stat.h> 55#include <sys/resource.h> 56#include <sys/dmu_traverse.h> 57#include <sys/zio_checksum.h> 58#include <sys/zio_compress.h> 59#include <sys/zfs_fuid.h> 60#include <sys/arc.h> 61#include <sys/ddt.h> 62#include <sys/zfeature.h> 63#include <zfs_comutil.h> 64#include <libcmdutils.h> 65#undef verify 66#include <libzfs.h> 67 68#define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 69 zio_compress_table[(idx)].ci_name : "UNKNOWN") 70#define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 71 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 72#define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 73 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 74 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 75#define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 76 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 77 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 78 79#ifndef lint 80extern boolean_t zfs_recover; 81extern uint64_t zfs_arc_max, zfs_arc_meta_limit; 82extern int zfs_vdev_async_read_max_active; 83#else 84boolean_t zfs_recover; 85uint64_t zfs_arc_max, zfs_arc_meta_limit; 86int zfs_vdev_async_read_max_active; 87#endif 88 89const char cmdname[] = "zdb"; 90uint8_t dump_opt[256]; 91 92typedef void object_viewer_t(objset_t *, uint64_t, void *data, size_t size); 93 94extern void dump_intent_log(zilog_t *); 95uint64_t *zopt_object = NULL; 96int zopt_objects = 0; 97libzfs_handle_t *g_zfs; 98uint64_t max_inflight = 1000; 99 100static void snprintf_blkptr_compact(char *, size_t, const blkptr_t *); 101 102/* 103 * These libumem hooks provide a reasonable set of defaults for the allocator's 104 * debugging facilities. 105 */ 106const char * 107_umem_debug_init() 108{ 109 return ("default,verbose"); /* $UMEM_DEBUG setting */ 110} 111 112const char * 113_umem_logging_init(void) 114{ 115 return ("fail,contents"); /* $UMEM_LOGGING setting */ 116} 117 118static void 119usage(void) 120{ 121 (void) fprintf(stderr, 122 "Usage: %s [-CmMdibcsDvhLXFPAG] [-t txg] [-e [-p path...]] " 123 "[-U config] [-I inflight I/Os] [-x dumpdir] [-o var=value] " 124 "poolname [object...]\n" 125 " %s [-divPA] [-e -p path...] [-U config] dataset " 126 "[object...]\n" 127 " %s -mM [-LXFPA] [-t txg] [-e [-p path...]] [-U config] " 128 "poolname [vdev [metaslab...]]\n" 129 " %s -R [-A] [-e [-p path...]] poolname " 130 "vdev:offset:size[:flags]\n" 131 " %s -S [-PA] [-e [-p path...]] [-U config] poolname\n" 132 " %s -l [-Aqu] device\n" 133 " %s -C [-A] [-U config]\n\n", 134 cmdname, cmdname, cmdname, cmdname, cmdname, cmdname, cmdname); 135 136 (void) fprintf(stderr, " Dataset name must include at least one " 137 "separator character '/' or '@'\n"); 138 (void) fprintf(stderr, " If dataset name is specified, only that " 139 "dataset is dumped\n"); 140 (void) fprintf(stderr, " If object numbers are specified, only " 141 "those objects are dumped\n\n"); 142 (void) fprintf(stderr, " Options to control amount of output:\n"); 143 (void) fprintf(stderr, " -d dataset(s)\n"); 144 (void) fprintf(stderr, " -i intent logs\n"); 145 (void) fprintf(stderr, " -C config (or cachefile if alone)\n"); 146 (void) fprintf(stderr, " -h pool history\n"); 147 (void) fprintf(stderr, " -b block statistics\n"); 148 (void) fprintf(stderr, " -m metaslabs\n"); 149 (void) fprintf(stderr, " -M metaslab groups\n"); 150 (void) fprintf(stderr, " -c checksum all metadata (twice for " 151 "all data) blocks\n"); 152 (void) fprintf(stderr, " -s report stats on zdb's I/O\n"); 153 (void) fprintf(stderr, " -D dedup statistics\n"); 154 (void) fprintf(stderr, " -S simulate dedup to measure effect\n"); 155 (void) fprintf(stderr, " -v verbose (applies to all others)\n"); 156 (void) fprintf(stderr, " -l read label contents\n"); 157 (void) fprintf(stderr, " -L disable leak tracking (do not " 158 "load spacemaps)\n"); 159 (void) fprintf(stderr, " -R read and display block from a " 160 "device\n\n"); 161 (void) fprintf(stderr, " Below options are intended for use " 162 "with other options:\n"); 163 (void) fprintf(stderr, " -A ignore assertions (-A), enable " 164 "panic recovery (-AA) or both (-AAA)\n"); 165 (void) fprintf(stderr, " -F attempt automatic rewind within " 166 "safe range of transaction groups\n"); 167 (void) fprintf(stderr, " -U <cachefile_path> -- use alternate " 168 "cachefile\n"); 169 (void) fprintf(stderr, " -X attempt extreme rewind (does not " 170 "work with dataset)\n"); 171 (void) fprintf(stderr, " -e pool is exported/destroyed/" 172 "has altroot/not in a cachefile\n"); 173 (void) fprintf(stderr, " -p <path> -- use one or more with " 174 "-e to specify path to vdev dir\n"); 175 (void) fprintf(stderr, " -x <dumpdir> -- " 176 "dump all read blocks into specified directory\n"); 177 (void) fprintf(stderr, " -P print numbers in parseable form\n"); 178 (void) fprintf(stderr, " -t <txg> -- highest txg to use when " 179 "searching for uberblocks\n"); 180 (void) fprintf(stderr, " -I <number of inflight I/Os> -- " 181 "specify the maximum number of " 182 "checksumming I/Os [default is 200]\n"); 183 (void) fprintf(stderr, " -G dump zfs_dbgmsg buffer before " 184 "exiting\n"); 185 (void) fprintf(stderr, " -o <variable>=<value> set global " 186 "variable to an unsigned 32-bit integer value\n"); 187 (void) fprintf(stderr, " -q don't print label contents\n"); 188 (void) fprintf(stderr, " -u uberblock\n"); 189 (void) fprintf(stderr, "Specify an option more than once (e.g. -bb) " 190 "to make only that option verbose\n"); 191 (void) fprintf(stderr, "Default is to dump everything non-verbosely\n"); 192 exit(1); 193} 194 195static void 196dump_debug_buffer() 197{ 198 if (dump_opt['G']) { 199 (void) printf("\n"); 200 zfs_dbgmsg_print("zdb"); 201 } 202} 203 204/* 205 * Called for usage errors that are discovered after a call to spa_open(), 206 * dmu_bonus_hold(), or pool_match(). abort() is called for other errors. 207 */ 208 209static void 210fatal(const char *fmt, ...) 211{ 212 va_list ap; 213 214 va_start(ap, fmt); 215 (void) fprintf(stderr, "%s: ", cmdname); 216 (void) vfprintf(stderr, fmt, ap); 217 va_end(ap); 218 (void) fprintf(stderr, "\n"); 219 220 dump_debug_buffer(); 221 222 exit(1); 223} 224 225/* ARGSUSED */ 226static void 227dump_packed_nvlist(objset_t *os, uint64_t object, void *data, size_t size) 228{ 229 nvlist_t *nv; 230 size_t nvsize = *(uint64_t *)data; 231 char *packed = umem_alloc(nvsize, UMEM_NOFAIL); 232 233 VERIFY(0 == dmu_read(os, object, 0, nvsize, packed, DMU_READ_PREFETCH)); 234 235 VERIFY(nvlist_unpack(packed, nvsize, &nv, 0) == 0); 236 237 umem_free(packed, nvsize); 238 239 dump_nvlist(nv, 8); 240 241 nvlist_free(nv); 242} 243 244/* ARGSUSED */ 245static void 246dump_history_offsets(objset_t *os, uint64_t object, void *data, size_t size) 247{ 248 spa_history_phys_t *shp = data; 249 250 if (shp == NULL) 251 return; 252 253 (void) printf("\t\tpool_create_len = %llu\n", 254 (u_longlong_t)shp->sh_pool_create_len); 255 (void) printf("\t\tphys_max_off = %llu\n", 256 (u_longlong_t)shp->sh_phys_max_off); 257 (void) printf("\t\tbof = %llu\n", 258 (u_longlong_t)shp->sh_bof); 259 (void) printf("\t\teof = %llu\n", 260 (u_longlong_t)shp->sh_eof); 261 (void) printf("\t\trecords_lost = %llu\n", 262 (u_longlong_t)shp->sh_records_lost); 263} 264 265static void 266zdb_nicenum(uint64_t num, char *buf, size_t buflen) 267{ 268 if (dump_opt['P']) 269 (void) snprintf(buf, buflen, "%llu", (longlong_t)num); 270 else 271 nicenum(num, buf, sizeof (buf)); 272} 273 274const char histo_stars[] = "****************************************"; 275const int histo_width = sizeof (histo_stars) - 1; 276 277static void 278dump_histogram(const uint64_t *histo, int size, int offset) 279{ 280 int i; 281 int minidx = size - 1; 282 int maxidx = 0; 283 uint64_t max = 0; 284 285 for (i = 0; i < size; i++) { 286 if (histo[i] > max) 287 max = histo[i]; 288 if (histo[i] > 0 && i > maxidx) 289 maxidx = i; 290 if (histo[i] > 0 && i < minidx) 291 minidx = i; 292 } 293 294 if (max < histo_width) 295 max = histo_width; 296 297 for (i = minidx; i <= maxidx; i++) { 298 (void) printf("\t\t\t%3u: %6llu %s\n", 299 i + offset, (u_longlong_t)histo[i], 300 &histo_stars[(max - histo[i]) * histo_width / max]); 301 } 302} 303 304static void 305dump_zap_stats(objset_t *os, uint64_t object) 306{ 307 int error; 308 zap_stats_t zs; 309 310 error = zap_get_stats(os, object, &zs); 311 if (error) 312 return; 313 314 if (zs.zs_ptrtbl_len == 0) { 315 ASSERT(zs.zs_num_blocks == 1); 316 (void) printf("\tmicrozap: %llu bytes, %llu entries\n", 317 (u_longlong_t)zs.zs_blocksize, 318 (u_longlong_t)zs.zs_num_entries); 319 return; 320 } 321 322 (void) printf("\tFat ZAP stats:\n"); 323 324 (void) printf("\t\tPointer table:\n"); 325 (void) printf("\t\t\t%llu elements\n", 326 (u_longlong_t)zs.zs_ptrtbl_len); 327 (void) printf("\t\t\tzt_blk: %llu\n", 328 (u_longlong_t)zs.zs_ptrtbl_zt_blk); 329 (void) printf("\t\t\tzt_numblks: %llu\n", 330 (u_longlong_t)zs.zs_ptrtbl_zt_numblks); 331 (void) printf("\t\t\tzt_shift: %llu\n", 332 (u_longlong_t)zs.zs_ptrtbl_zt_shift); 333 (void) printf("\t\t\tzt_blks_copied: %llu\n", 334 (u_longlong_t)zs.zs_ptrtbl_blks_copied); 335 (void) printf("\t\t\tzt_nextblk: %llu\n", 336 (u_longlong_t)zs.zs_ptrtbl_nextblk); 337 338 (void) printf("\t\tZAP entries: %llu\n", 339 (u_longlong_t)zs.zs_num_entries); 340 (void) printf("\t\tLeaf blocks: %llu\n", 341 (u_longlong_t)zs.zs_num_leafs); 342 (void) printf("\t\tTotal blocks: %llu\n", 343 (u_longlong_t)zs.zs_num_blocks); 344 (void) printf("\t\tzap_block_type: 0x%llx\n", 345 (u_longlong_t)zs.zs_block_type); 346 (void) printf("\t\tzap_magic: 0x%llx\n", 347 (u_longlong_t)zs.zs_magic); 348 (void) printf("\t\tzap_salt: 0x%llx\n", 349 (u_longlong_t)zs.zs_salt); 350 351 (void) printf("\t\tLeafs with 2^n pointers:\n"); 352 dump_histogram(zs.zs_leafs_with_2n_pointers, ZAP_HISTOGRAM_SIZE, 0); 353 354 (void) printf("\t\tBlocks with n*5 entries:\n"); 355 dump_histogram(zs.zs_blocks_with_n5_entries, ZAP_HISTOGRAM_SIZE, 0); 356 357 (void) printf("\t\tBlocks n/10 full:\n"); 358 dump_histogram(zs.zs_blocks_n_tenths_full, ZAP_HISTOGRAM_SIZE, 0); 359 360 (void) printf("\t\tEntries with n chunks:\n"); 361 dump_histogram(zs.zs_entries_using_n_chunks, ZAP_HISTOGRAM_SIZE, 0); 362 363 (void) printf("\t\tBuckets with n entries:\n"); 364 dump_histogram(zs.zs_buckets_with_n_entries, ZAP_HISTOGRAM_SIZE, 0); 365} 366 367/*ARGSUSED*/ 368static void 369dump_none(objset_t *os, uint64_t object, void *data, size_t size) 370{ 371} 372 373/*ARGSUSED*/ 374static void 375dump_unknown(objset_t *os, uint64_t object, void *data, size_t size) 376{ 377 (void) printf("\tUNKNOWN OBJECT TYPE\n"); 378} 379 380/*ARGSUSED*/ 381void 382dump_uint8(objset_t *os, uint64_t object, void *data, size_t size) 383{ 384} 385 386/*ARGSUSED*/ 387static void 388dump_uint64(objset_t *os, uint64_t object, void *data, size_t size) 389{ 390} 391 392/*ARGSUSED*/ 393static void 394dump_zap(objset_t *os, uint64_t object, void *data, size_t size) 395{ 396 zap_cursor_t zc; 397 zap_attribute_t attr; 398 void *prop; 399 int i; 400 401 dump_zap_stats(os, object); 402 (void) printf("\n"); 403 404 for (zap_cursor_init(&zc, os, object); 405 zap_cursor_retrieve(&zc, &attr) == 0; 406 zap_cursor_advance(&zc)) { 407 (void) printf("\t\t%s = ", attr.za_name); 408 if (attr.za_num_integers == 0) { 409 (void) printf("\n"); 410 continue; 411 } 412 prop = umem_zalloc(attr.za_num_integers * 413 attr.za_integer_length, UMEM_NOFAIL); 414 (void) zap_lookup(os, object, attr.za_name, 415 attr.za_integer_length, attr.za_num_integers, prop); 416 if (attr.za_integer_length == 1) { 417 (void) printf("%s", (char *)prop); 418 } else { 419 for (i = 0; i < attr.za_num_integers; i++) { 420 switch (attr.za_integer_length) { 421 case 2: 422 (void) printf("%u ", 423 ((uint16_t *)prop)[i]); 424 break; 425 case 4: 426 (void) printf("%u ", 427 ((uint32_t *)prop)[i]); 428 break; 429 case 8: 430 (void) printf("%lld ", 431 (u_longlong_t)((int64_t *)prop)[i]); 432 break; 433 } 434 } 435 } 436 (void) printf("\n"); 437 umem_free(prop, attr.za_num_integers * attr.za_integer_length); 438 } 439 zap_cursor_fini(&zc); 440} 441 442static void 443dump_bpobj(objset_t *os, uint64_t object, void *data, size_t size) 444{ 445 bpobj_phys_t *bpop = data; 446 char bytes[32], comp[32], uncomp[32]; 447 448 /* make sure the output won't get truncated */ 449 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 450 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 451 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 452 453 if (bpop == NULL) 454 return; 455 456 zdb_nicenum(bpop->bpo_bytes, bytes, sizeof (bytes)); 457 zdb_nicenum(bpop->bpo_comp, comp, sizeof (comp)); 458 zdb_nicenum(bpop->bpo_uncomp, uncomp, sizeof (uncomp)); 459 460 (void) printf("\t\tnum_blkptrs = %llu\n", 461 (u_longlong_t)bpop->bpo_num_blkptrs); 462 (void) printf("\t\tbytes = %s\n", bytes); 463 if (size >= BPOBJ_SIZE_V1) { 464 (void) printf("\t\tcomp = %s\n", comp); 465 (void) printf("\t\tuncomp = %s\n", uncomp); 466 } 467 if (size >= sizeof (*bpop)) { 468 (void) printf("\t\tsubobjs = %llu\n", 469 (u_longlong_t)bpop->bpo_subobjs); 470 (void) printf("\t\tnum_subobjs = %llu\n", 471 (u_longlong_t)bpop->bpo_num_subobjs); 472 } 473 474 if (dump_opt['d'] < 5) 475 return; 476 477 for (uint64_t i = 0; i < bpop->bpo_num_blkptrs; i++) { 478 char blkbuf[BP_SPRINTF_LEN]; 479 blkptr_t bp; 480 481 int err = dmu_read(os, object, 482 i * sizeof (bp), sizeof (bp), &bp, 0); 483 if (err != 0) { 484 (void) printf("got error %u from dmu_read\n", err); 485 break; 486 } 487 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), &bp); 488 (void) printf("\t%s\n", blkbuf); 489 } 490} 491 492/* ARGSUSED */ 493static void 494dump_bpobj_subobjs(objset_t *os, uint64_t object, void *data, size_t size) 495{ 496 dmu_object_info_t doi; 497 498 VERIFY0(dmu_object_info(os, object, &doi)); 499 uint64_t *subobjs = kmem_alloc(doi.doi_max_offset, KM_SLEEP); 500 501 int err = dmu_read(os, object, 0, doi.doi_max_offset, subobjs, 0); 502 if (err != 0) { 503 (void) printf("got error %u from dmu_read\n", err); 504 kmem_free(subobjs, doi.doi_max_offset); 505 return; 506 } 507 508 int64_t last_nonzero = -1; 509 for (uint64_t i = 0; i < doi.doi_max_offset / 8; i++) { 510 if (subobjs[i] != 0) 511 last_nonzero = i; 512 } 513 514 for (int64_t i = 0; i <= last_nonzero; i++) { 515 (void) printf("\t%llu\n", (longlong_t)subobjs[i]); 516 } 517 kmem_free(subobjs, doi.doi_max_offset); 518} 519 520/*ARGSUSED*/ 521static void 522dump_ddt_zap(objset_t *os, uint64_t object, void *data, size_t size) 523{ 524 dump_zap_stats(os, object); 525 /* contents are printed elsewhere, properly decoded */ 526} 527 528/*ARGSUSED*/ 529static void 530dump_sa_attrs(objset_t *os, uint64_t object, void *data, size_t size) 531{ 532 zap_cursor_t zc; 533 zap_attribute_t attr; 534 535 dump_zap_stats(os, object); 536 (void) printf("\n"); 537 538 for (zap_cursor_init(&zc, os, object); 539 zap_cursor_retrieve(&zc, &attr) == 0; 540 zap_cursor_advance(&zc)) { 541 (void) printf("\t\t%s = ", attr.za_name); 542 if (attr.za_num_integers == 0) { 543 (void) printf("\n"); 544 continue; 545 } 546 (void) printf(" %llx : [%d:%d:%d]\n", 547 (u_longlong_t)attr.za_first_integer, 548 (int)ATTR_LENGTH(attr.za_first_integer), 549 (int)ATTR_BSWAP(attr.za_first_integer), 550 (int)ATTR_NUM(attr.za_first_integer)); 551 } 552 zap_cursor_fini(&zc); 553} 554 555/*ARGSUSED*/ 556static void 557dump_sa_layouts(objset_t *os, uint64_t object, void *data, size_t size) 558{ 559 zap_cursor_t zc; 560 zap_attribute_t attr; 561 uint16_t *layout_attrs; 562 int i; 563 564 dump_zap_stats(os, object); 565 (void) printf("\n"); 566 567 for (zap_cursor_init(&zc, os, object); 568 zap_cursor_retrieve(&zc, &attr) == 0; 569 zap_cursor_advance(&zc)) { 570 (void) printf("\t\t%s = [", attr.za_name); 571 if (attr.za_num_integers == 0) { 572 (void) printf("\n"); 573 continue; 574 } 575 576 VERIFY(attr.za_integer_length == 2); 577 layout_attrs = umem_zalloc(attr.za_num_integers * 578 attr.za_integer_length, UMEM_NOFAIL); 579 580 VERIFY(zap_lookup(os, object, attr.za_name, 581 attr.za_integer_length, 582 attr.za_num_integers, layout_attrs) == 0); 583 584 for (i = 0; i != attr.za_num_integers; i++) 585 (void) printf(" %d ", (int)layout_attrs[i]); 586 (void) printf("]\n"); 587 umem_free(layout_attrs, 588 attr.za_num_integers * attr.za_integer_length); 589 } 590 zap_cursor_fini(&zc); 591} 592 593/*ARGSUSED*/ 594static void 595dump_zpldir(objset_t *os, uint64_t object, void *data, size_t size) 596{ 597 zap_cursor_t zc; 598 zap_attribute_t attr; 599 const char *typenames[] = { 600 /* 0 */ "not specified", 601 /* 1 */ "FIFO", 602 /* 2 */ "Character Device", 603 /* 3 */ "3 (invalid)", 604 /* 4 */ "Directory", 605 /* 5 */ "5 (invalid)", 606 /* 6 */ "Block Device", 607 /* 7 */ "7 (invalid)", 608 /* 8 */ "Regular File", 609 /* 9 */ "9 (invalid)", 610 /* 10 */ "Symbolic Link", 611 /* 11 */ "11 (invalid)", 612 /* 12 */ "Socket", 613 /* 13 */ "Door", 614 /* 14 */ "Event Port", 615 /* 15 */ "15 (invalid)", 616 }; 617 618 dump_zap_stats(os, object); 619 (void) printf("\n"); 620 621 for (zap_cursor_init(&zc, os, object); 622 zap_cursor_retrieve(&zc, &attr) == 0; 623 zap_cursor_advance(&zc)) { 624 (void) printf("\t\t%s = %lld (type: %s)\n", 625 attr.za_name, ZFS_DIRENT_OBJ(attr.za_first_integer), 626 typenames[ZFS_DIRENT_TYPE(attr.za_first_integer)]); 627 } 628 zap_cursor_fini(&zc); 629} 630 631int 632get_dtl_refcount(vdev_t *vd) 633{ 634 int refcount = 0; 635 636 if (vd->vdev_ops->vdev_op_leaf) { 637 space_map_t *sm = vd->vdev_dtl_sm; 638 639 if (sm != NULL && 640 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 641 return (1); 642 return (0); 643 } 644 645 for (int c = 0; c < vd->vdev_children; c++) 646 refcount += get_dtl_refcount(vd->vdev_child[c]); 647 return (refcount); 648} 649 650int 651get_metaslab_refcount(vdev_t *vd) 652{ 653 int refcount = 0; 654 655 if (vd->vdev_top == vd && !vd->vdev_removing) { 656 for (int m = 0; m < vd->vdev_ms_count; m++) { 657 space_map_t *sm = vd->vdev_ms[m]->ms_sm; 658 659 if (sm != NULL && 660 sm->sm_dbuf->db_size == sizeof (space_map_phys_t)) 661 refcount++; 662 } 663 } 664 for (int c = 0; c < vd->vdev_children; c++) 665 refcount += get_metaslab_refcount(vd->vdev_child[c]); 666 667 return (refcount); 668} 669 670static int 671verify_spacemap_refcounts(spa_t *spa) 672{ 673 uint64_t expected_refcount = 0; 674 uint64_t actual_refcount; 675 676 (void) feature_get_refcount(spa, 677 &spa_feature_table[SPA_FEATURE_SPACEMAP_HISTOGRAM], 678 &expected_refcount); 679 actual_refcount = get_dtl_refcount(spa->spa_root_vdev); 680 actual_refcount += get_metaslab_refcount(spa->spa_root_vdev); 681 682 if (expected_refcount != actual_refcount) { 683 (void) printf("space map refcount mismatch: expected %lld != " 684 "actual %lld\n", 685 (longlong_t)expected_refcount, 686 (longlong_t)actual_refcount); 687 return (2); 688 } 689 return (0); 690} 691 692static void 693dump_spacemap(objset_t *os, space_map_t *sm) 694{ 695 uint64_t alloc, offset, entry; 696 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 697 "INVALID", "INVALID", "INVALID", "INVALID" }; 698 699 if (sm == NULL) 700 return; 701 702 /* 703 * Print out the freelist entries in both encoded and decoded form. 704 */ 705 alloc = 0; 706 for (offset = 0; offset < space_map_length(sm); 707 offset += sizeof (entry)) { 708 uint8_t mapshift = sm->sm_shift; 709 710 VERIFY0(dmu_read(os, space_map_object(sm), offset, 711 sizeof (entry), &entry, DMU_READ_PREFETCH)); 712 if (SM_DEBUG_DECODE(entry)) { 713 714 (void) printf("\t [%6llu] %s: txg %llu, pass %llu\n", 715 (u_longlong_t)(offset / sizeof (entry)), 716 ddata[SM_DEBUG_ACTION_DECODE(entry)], 717 (u_longlong_t)SM_DEBUG_TXG_DECODE(entry), 718 (u_longlong_t)SM_DEBUG_SYNCPASS_DECODE(entry)); 719 } else { 720 (void) printf("\t [%6llu] %c range:" 721 " %010llx-%010llx size: %06llx\n", 722 (u_longlong_t)(offset / sizeof (entry)), 723 SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 724 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 725 mapshift) + sm->sm_start), 726 (u_longlong_t)((SM_OFFSET_DECODE(entry) << 727 mapshift) + sm->sm_start + 728 (SM_RUN_DECODE(entry) << mapshift)), 729 (u_longlong_t)(SM_RUN_DECODE(entry) << mapshift)); 730 if (SM_TYPE_DECODE(entry) == SM_ALLOC) 731 alloc += SM_RUN_DECODE(entry) << mapshift; 732 else 733 alloc -= SM_RUN_DECODE(entry) << mapshift; 734 } 735 } 736 if (alloc != space_map_allocated(sm)) { 737 (void) printf("space_map_object alloc (%llu) INCONSISTENT " 738 "with space map summary (%llu)\n", 739 (u_longlong_t)space_map_allocated(sm), (u_longlong_t)alloc); 740 } 741} 742 743static void 744dump_metaslab_stats(metaslab_t *msp) 745{ 746 char maxbuf[32]; 747 range_tree_t *rt = msp->ms_tree; 748 avl_tree_t *t = &msp->ms_size_tree; 749 int free_pct = range_tree_space(rt) * 100 / msp->ms_size; 750 751 /* max sure nicenum has enough space */ 752 CTASSERT(sizeof (maxbuf) >= NN_NUMBUF_SZ); 753 754 zdb_nicenum(metaslab_block_maxsize(msp), maxbuf, sizeof (maxbuf)); 755 756 (void) printf("\t %25s %10lu %7s %6s %4s %4d%%\n", 757 "segments", avl_numnodes(t), "maxsize", maxbuf, 758 "freepct", free_pct); 759 (void) printf("\tIn-memory histogram:\n"); 760 dump_histogram(rt->rt_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 761} 762 763static void 764dump_metaslab(metaslab_t *msp) 765{ 766 vdev_t *vd = msp->ms_group->mg_vd; 767 spa_t *spa = vd->vdev_spa; 768 space_map_t *sm = msp->ms_sm; 769 char freebuf[32]; 770 771 zdb_nicenum(msp->ms_size - space_map_allocated(sm), freebuf, 772 sizeof (freebuf)); 773 774 (void) printf( 775 "\tmetaslab %6llu offset %12llx spacemap %6llu free %5s\n", 776 (u_longlong_t)msp->ms_id, (u_longlong_t)msp->ms_start, 777 (u_longlong_t)space_map_object(sm), freebuf); 778 779 if (dump_opt['m'] > 2 && !dump_opt['L']) { 780 mutex_enter(&msp->ms_lock); 781 metaslab_load_wait(msp); 782 if (!msp->ms_loaded) { 783 VERIFY0(metaslab_load(msp)); 784 range_tree_stat_verify(msp->ms_tree); 785 } 786 dump_metaslab_stats(msp); 787 metaslab_unload(msp); 788 mutex_exit(&msp->ms_lock); 789 } 790 791 if (dump_opt['m'] > 1 && sm != NULL && 792 spa_feature_is_active(spa, SPA_FEATURE_SPACEMAP_HISTOGRAM)) { 793 /* 794 * The space map histogram represents free space in chunks 795 * of sm_shift (i.e. bucket 0 refers to 2^sm_shift). 796 */ 797 (void) printf("\tOn-disk histogram:\t\tfragmentation %llu\n", 798 (u_longlong_t)msp->ms_fragmentation); 799 dump_histogram(sm->sm_phys->smp_histogram, 800 SPACE_MAP_HISTOGRAM_SIZE, sm->sm_shift); 801 } 802 803 if (dump_opt['d'] > 5 || dump_opt['m'] > 3) { 804 ASSERT(msp->ms_size == (1ULL << vd->vdev_ms_shift)); 805 806 mutex_enter(&msp->ms_lock); 807 dump_spacemap(spa->spa_meta_objset, msp->ms_sm); 808 mutex_exit(&msp->ms_lock); 809 } 810} 811 812static void 813print_vdev_metaslab_header(vdev_t *vd) 814{ 815 (void) printf("\tvdev %10llu\n\t%-10s%5llu %-19s %-15s %-10s\n", 816 (u_longlong_t)vd->vdev_id, 817 "metaslabs", (u_longlong_t)vd->vdev_ms_count, 818 "offset", "spacemap", "free"); 819 (void) printf("\t%15s %19s %15s %10s\n", 820 "---------------", "-------------------", 821 "---------------", "-------------"); 822} 823 824static void 825dump_metaslab_groups(spa_t *spa) 826{ 827 vdev_t *rvd = spa->spa_root_vdev; 828 metaslab_class_t *mc = spa_normal_class(spa); 829 uint64_t fragmentation; 830 831 metaslab_class_histogram_verify(mc); 832 833 for (int c = 0; c < rvd->vdev_children; c++) { 834 vdev_t *tvd = rvd->vdev_child[c]; 835 metaslab_group_t *mg = tvd->vdev_mg; 836 837 if (mg->mg_class != mc) 838 continue; 839 840 metaslab_group_histogram_verify(mg); 841 mg->mg_fragmentation = metaslab_group_fragmentation(mg); 842 843 (void) printf("\tvdev %10llu\t\tmetaslabs%5llu\t\t" 844 "fragmentation", 845 (u_longlong_t)tvd->vdev_id, 846 (u_longlong_t)tvd->vdev_ms_count); 847 if (mg->mg_fragmentation == ZFS_FRAG_INVALID) { 848 (void) printf("%3s\n", "-"); 849 } else { 850 (void) printf("%3llu%%\n", 851 (u_longlong_t)mg->mg_fragmentation); 852 } 853 dump_histogram(mg->mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 854 } 855 856 (void) printf("\tpool %s\tfragmentation", spa_name(spa)); 857 fragmentation = metaslab_class_fragmentation(mc); 858 if (fragmentation == ZFS_FRAG_INVALID) 859 (void) printf("\t%3s\n", "-"); 860 else 861 (void) printf("\t%3llu%%\n", (u_longlong_t)fragmentation); 862 dump_histogram(mc->mc_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 863} 864 865static void 866dump_metaslabs(spa_t *spa) 867{ 868 vdev_t *vd, *rvd = spa->spa_root_vdev; 869 uint64_t m, c = 0, children = rvd->vdev_children; 870 871 (void) printf("\nMetaslabs:\n"); 872 873 if (!dump_opt['d'] && zopt_objects > 0) { 874 c = zopt_object[0]; 875 876 if (c >= children) 877 (void) fatal("bad vdev id: %llu", (u_longlong_t)c); 878 879 if (zopt_objects > 1) { 880 vd = rvd->vdev_child[c]; 881 print_vdev_metaslab_header(vd); 882 883 for (m = 1; m < zopt_objects; m++) { 884 if (zopt_object[m] < vd->vdev_ms_count) 885 dump_metaslab( 886 vd->vdev_ms[zopt_object[m]]); 887 else 888 (void) fprintf(stderr, "bad metaslab " 889 "number %llu\n", 890 (u_longlong_t)zopt_object[m]); 891 } 892 (void) printf("\n"); 893 return; 894 } 895 children = c + 1; 896 } 897 for (; c < children; c++) { 898 vd = rvd->vdev_child[c]; 899 print_vdev_metaslab_header(vd); 900 901 for (m = 0; m < vd->vdev_ms_count; m++) 902 dump_metaslab(vd->vdev_ms[m]); 903 (void) printf("\n"); 904 } 905} 906 907static void 908dump_dde(const ddt_t *ddt, const ddt_entry_t *dde, uint64_t index) 909{ 910 const ddt_phys_t *ddp = dde->dde_phys; 911 const ddt_key_t *ddk = &dde->dde_key; 912 char *types[4] = { "ditto", "single", "double", "triple" }; 913 char blkbuf[BP_SPRINTF_LEN]; 914 blkptr_t blk; 915 916 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 917 if (ddp->ddp_phys_birth == 0) 918 continue; 919 ddt_bp_create(ddt->ddt_checksum, ddk, ddp, &blk); 920 snprintf_blkptr(blkbuf, sizeof (blkbuf), &blk); 921 (void) printf("index %llx refcnt %llu %s %s\n", 922 (u_longlong_t)index, (u_longlong_t)ddp->ddp_refcnt, 923 types[p], blkbuf); 924 } 925} 926 927static void 928dump_dedup_ratio(const ddt_stat_t *dds) 929{ 930 double rL, rP, rD, D, dedup, compress, copies; 931 932 if (dds->dds_blocks == 0) 933 return; 934 935 rL = (double)dds->dds_ref_lsize; 936 rP = (double)dds->dds_ref_psize; 937 rD = (double)dds->dds_ref_dsize; 938 D = (double)dds->dds_dsize; 939 940 dedup = rD / D; 941 compress = rL / rP; 942 copies = rD / rP; 943 944 (void) printf("dedup = %.2f, compress = %.2f, copies = %.2f, " 945 "dedup * compress / copies = %.2f\n\n", 946 dedup, compress, copies, dedup * compress / copies); 947} 948 949static void 950dump_ddt(ddt_t *ddt, enum ddt_type type, enum ddt_class class) 951{ 952 char name[DDT_NAMELEN]; 953 ddt_entry_t dde; 954 uint64_t walk = 0; 955 dmu_object_info_t doi; 956 uint64_t count, dspace, mspace; 957 int error; 958 959 error = ddt_object_info(ddt, type, class, &doi); 960 961 if (error == ENOENT) 962 return; 963 ASSERT(error == 0); 964 965 error = ddt_object_count(ddt, type, class, &count); 966 ASSERT(error == 0); 967 if (count == 0) 968 return; 969 970 dspace = doi.doi_physical_blocks_512 << 9; 971 mspace = doi.doi_fill_count * doi.doi_data_block_size; 972 973 ddt_object_name(ddt, type, class, name); 974 975 (void) printf("%s: %llu entries, size %llu on disk, %llu in core\n", 976 name, 977 (u_longlong_t)count, 978 (u_longlong_t)(dspace / count), 979 (u_longlong_t)(mspace / count)); 980 981 if (dump_opt['D'] < 3) 982 return; 983 984 zpool_dump_ddt(NULL, &ddt->ddt_histogram[type][class]); 985 986 if (dump_opt['D'] < 4) 987 return; 988 989 if (dump_opt['D'] < 5 && class == DDT_CLASS_UNIQUE) 990 return; 991 992 (void) printf("%s contents:\n\n", name); 993 994 while ((error = ddt_object_walk(ddt, type, class, &walk, &dde)) == 0) 995 dump_dde(ddt, &dde, walk); 996 997 ASSERT(error == ENOENT); 998 999 (void) printf("\n"); 1000} 1001 1002static void 1003dump_all_ddts(spa_t *spa) 1004{ 1005 ddt_histogram_t ddh_total = { 0 }; 1006 ddt_stat_t dds_total = { 0 }; 1007 1008 for (enum zio_checksum c = 0; c < ZIO_CHECKSUM_FUNCTIONS; c++) { 1009 ddt_t *ddt = spa->spa_ddt[c]; 1010 for (enum ddt_type type = 0; type < DDT_TYPES; type++) { 1011 for (enum ddt_class class = 0; class < DDT_CLASSES; 1012 class++) { 1013 dump_ddt(ddt, type, class); 1014 } 1015 } 1016 } 1017 1018 ddt_get_dedup_stats(spa, &dds_total); 1019 1020 if (dds_total.dds_blocks == 0) { 1021 (void) printf("All DDTs are empty\n"); 1022 return; 1023 } 1024 1025 (void) printf("\n"); 1026 1027 if (dump_opt['D'] > 1) { 1028 (void) printf("DDT histogram (aggregated over all DDTs):\n"); 1029 ddt_get_dedup_histogram(spa, &ddh_total); 1030 zpool_dump_ddt(&dds_total, &ddh_total); 1031 } 1032 1033 dump_dedup_ratio(&dds_total); 1034} 1035 1036static void 1037dump_dtl_seg(void *arg, uint64_t start, uint64_t size) 1038{ 1039 char *prefix = arg; 1040 1041 (void) printf("%s [%llu,%llu) length %llu\n", 1042 prefix, 1043 (u_longlong_t)start, 1044 (u_longlong_t)(start + size), 1045 (u_longlong_t)(size)); 1046} 1047 1048static void 1049dump_dtl(vdev_t *vd, int indent) 1050{ 1051 spa_t *spa = vd->vdev_spa; 1052 boolean_t required; 1053 char *name[DTL_TYPES] = { "missing", "partial", "scrub", "outage" }; 1054 char prefix[256]; 1055 1056 spa_vdev_state_enter(spa, SCL_NONE); 1057 required = vdev_dtl_required(vd); 1058 (void) spa_vdev_state_exit(spa, NULL, 0); 1059 1060 if (indent == 0) 1061 (void) printf("\nDirty time logs:\n\n"); 1062 1063 (void) printf("\t%*s%s [%s]\n", indent, "", 1064 vd->vdev_path ? vd->vdev_path : 1065 vd->vdev_parent ? vd->vdev_ops->vdev_op_type : spa_name(spa), 1066 required ? "DTL-required" : "DTL-expendable"); 1067 1068 for (int t = 0; t < DTL_TYPES; t++) { 1069 range_tree_t *rt = vd->vdev_dtl[t]; 1070 if (range_tree_space(rt) == 0) 1071 continue; 1072 (void) snprintf(prefix, sizeof (prefix), "\t%*s%s", 1073 indent + 2, "", name[t]); 1074 mutex_enter(rt->rt_lock); 1075 range_tree_walk(rt, dump_dtl_seg, prefix); 1076 mutex_exit(rt->rt_lock); 1077 if (dump_opt['d'] > 5 && vd->vdev_children == 0) 1078 dump_spacemap(spa->spa_meta_objset, vd->vdev_dtl_sm); 1079 } 1080 1081 for (int c = 0; c < vd->vdev_children; c++) 1082 dump_dtl(vd->vdev_child[c], indent + 4); 1083} 1084 1085/* from spa_history.c: spa_history_create_obj() */ 1086#define HIS_BUF_LEN_DEF (128 << 10) 1087#define HIS_BUF_LEN_MAX (1 << 30) 1088 1089static void 1090dump_history(spa_t *spa) 1091{ 1092 nvlist_t **events = NULL; 1093 char *buf = NULL; 1094 uint64_t bufsize = HIS_BUF_LEN_DEF; 1095 uint64_t resid, len, off = 0; 1096 uint_t num = 0; 1097 int error; 1098 time_t tsec; 1099 struct tm t; 1100 char tbuf[30]; 1101 char internalstr[MAXPATHLEN]; 1102 1103 if ((buf = malloc(bufsize)) == NULL) 1104 (void) fprintf(stderr, "Unable to read history: " 1105 "out of memory\n"); 1106 do { 1107 len = bufsize; 1108 1109 if ((error = spa_history_get(spa, &off, &len, buf)) != 0) { 1110 (void) fprintf(stderr, "Unable to read history: " 1111 "error %d\n", error); 1112 return; 1113 } 1114 1115 if (zpool_history_unpack(buf, len, &resid, &events, &num) != 0) 1116 break; 1117 off -= resid; 1118 1119 /* 1120 * If the history block is too big, double the buffer 1121 * size and try again. 1122 */ 1123 if (resid == len) { 1124 free(buf); 1125 buf = NULL; 1126 1127 bufsize <<= 1; 1128 if ((bufsize >= HIS_BUF_LEN_MAX) || 1129 ((buf = malloc(bufsize)) == NULL)) { 1130 (void) fprintf(stderr, "Unable to read history: " 1131 "out of memory\n"); 1132 return; 1133 } 1134 } 1135 } while (len != 0); 1136 free(buf); 1137 1138 (void) printf("\nHistory:\n"); 1139 for (int i = 0; i < num; i++) { 1140 uint64_t time, txg, ievent; 1141 char *cmd, *intstr; 1142 boolean_t printed = B_FALSE; 1143 1144 if (nvlist_lookup_uint64(events[i], ZPOOL_HIST_TIME, 1145 &time) != 0) 1146 goto next; 1147 if (nvlist_lookup_string(events[i], ZPOOL_HIST_CMD, 1148 &cmd) != 0) { 1149 if (nvlist_lookup_uint64(events[i], 1150 ZPOOL_HIST_INT_EVENT, &ievent) != 0) 1151 goto next; 1152 verify(nvlist_lookup_uint64(events[i], 1153 ZPOOL_HIST_TXG, &txg) == 0); 1154 verify(nvlist_lookup_string(events[i], 1155 ZPOOL_HIST_INT_STR, &intstr) == 0); 1156 if (ievent >= ZFS_NUM_LEGACY_HISTORY_EVENTS) 1157 goto next; 1158 1159 (void) snprintf(internalstr, 1160 sizeof (internalstr), 1161 "[internal %s txg:%lld] %s", 1162 zfs_history_event_names[ievent], txg, 1163 intstr); 1164 cmd = internalstr; 1165 } 1166 tsec = time; 1167 (void) localtime_r(&tsec, &t); 1168 (void) strftime(tbuf, sizeof (tbuf), "%F.%T", &t); 1169 (void) printf("%s %s\n", tbuf, cmd); 1170 printed = B_TRUE; 1171 1172next: 1173 if (dump_opt['h'] > 1) { 1174 if (!printed) 1175 (void) printf("unrecognized record:\n"); 1176 dump_nvlist(events[i], 2); 1177 } 1178 } 1179} 1180 1181/*ARGSUSED*/ 1182static void 1183dump_dnode(objset_t *os, uint64_t object, void *data, size_t size) 1184{ 1185} 1186 1187static uint64_t 1188blkid2offset(const dnode_phys_t *dnp, const blkptr_t *bp, 1189 const zbookmark_phys_t *zb) 1190{ 1191 if (dnp == NULL) { 1192 ASSERT(zb->zb_level < 0); 1193 if (zb->zb_object == 0) 1194 return (zb->zb_blkid); 1195 return (zb->zb_blkid * BP_GET_LSIZE(bp)); 1196 } 1197 1198 ASSERT(zb->zb_level >= 0); 1199 1200 return ((zb->zb_blkid << 1201 (zb->zb_level * (dnp->dn_indblkshift - SPA_BLKPTRSHIFT))) * 1202 dnp->dn_datablkszsec << SPA_MINBLOCKSHIFT); 1203} 1204 1205static void 1206snprintf_blkptr_compact(char *blkbuf, size_t buflen, const blkptr_t *bp) 1207{ 1208 const dva_t *dva = bp->blk_dva; 1209 int ndvas = dump_opt['d'] > 5 ? BP_GET_NDVAS(bp) : 1; 1210 1211 if (dump_opt['b'] >= 6) { 1212 snprintf_blkptr(blkbuf, buflen, bp); 1213 return; 1214 } 1215 1216 if (BP_IS_EMBEDDED(bp)) { 1217 (void) sprintf(blkbuf, 1218 "EMBEDDED et=%u %llxL/%llxP B=%llu", 1219 (int)BPE_GET_ETYPE(bp), 1220 (u_longlong_t)BPE_GET_LSIZE(bp), 1221 (u_longlong_t)BPE_GET_PSIZE(bp), 1222 (u_longlong_t)bp->blk_birth); 1223 return; 1224 } 1225 1226 blkbuf[0] = '\0'; 1227 for (int i = 0; i < ndvas; i++) 1228 (void) snprintf(blkbuf + strlen(blkbuf), 1229 buflen - strlen(blkbuf), "%llu:%llx:%llx ", 1230 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1231 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1232 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1233 1234 if (BP_IS_HOLE(bp)) { 1235 (void) snprintf(blkbuf + strlen(blkbuf), 1236 buflen - strlen(blkbuf), 1237 "%llxL B=%llu", 1238 (u_longlong_t)BP_GET_LSIZE(bp), 1239 (u_longlong_t)bp->blk_birth); 1240 } else { 1241 (void) snprintf(blkbuf + strlen(blkbuf), 1242 buflen - strlen(blkbuf), 1243 "%llxL/%llxP F=%llu B=%llu/%llu", 1244 (u_longlong_t)BP_GET_LSIZE(bp), 1245 (u_longlong_t)BP_GET_PSIZE(bp), 1246 (u_longlong_t)BP_GET_FILL(bp), 1247 (u_longlong_t)bp->blk_birth, 1248 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1249 } 1250} 1251 1252static void 1253print_indirect(blkptr_t *bp, const zbookmark_phys_t *zb, 1254 const dnode_phys_t *dnp) 1255{ 1256 char blkbuf[BP_SPRINTF_LEN]; 1257 int l; 1258 1259 if (!BP_IS_EMBEDDED(bp)) { 1260 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1261 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1262 } 1263 1264 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1265 1266 ASSERT(zb->zb_level >= 0); 1267 1268 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1269 if (l == zb->zb_level) { 1270 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1271 } else { 1272 (void) printf(" "); 1273 } 1274 } 1275 1276 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1277 (void) printf("%s\n", blkbuf); 1278} 1279 1280static int 1281visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1282 blkptr_t *bp, const zbookmark_phys_t *zb) 1283{ 1284 int err = 0; 1285 1286 if (bp->blk_birth == 0) 1287 return (0); 1288 1289 print_indirect(bp, zb, dnp); 1290 1291 if (BP_GET_LEVEL(bp) > 0 && !BP_IS_HOLE(bp)) { 1292 arc_flags_t flags = ARC_FLAG_WAIT; 1293 int i; 1294 blkptr_t *cbp; 1295 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1296 arc_buf_t *buf; 1297 uint64_t fill = 0; 1298 1299 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1300 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1301 if (err) 1302 return (err); 1303 ASSERT(buf->b_data); 1304 1305 /* recursively visit blocks below this */ 1306 cbp = buf->b_data; 1307 for (i = 0; i < epb; i++, cbp++) { 1308 zbookmark_phys_t czb; 1309 1310 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1311 zb->zb_level - 1, 1312 zb->zb_blkid * epb + i); 1313 err = visit_indirect(spa, dnp, cbp, &czb); 1314 if (err) 1315 break; 1316 fill += BP_GET_FILL(cbp); 1317 } 1318 if (!err) 1319 ASSERT3U(fill, ==, BP_GET_FILL(bp)); 1320 arc_buf_destroy(buf, &buf); 1321 } 1322 1323 return (err); 1324} 1325 1326/*ARGSUSED*/ 1327static void 1328dump_indirect(dnode_t *dn) 1329{ 1330 dnode_phys_t *dnp = dn->dn_phys; 1331 int j; 1332 zbookmark_phys_t czb; 1333 1334 (void) printf("Indirect blocks:\n"); 1335 1336 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1337 dn->dn_object, dnp->dn_nlevels - 1, 0); 1338 for (j = 0; j < dnp->dn_nblkptr; j++) { 1339 czb.zb_blkid = j; 1340 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1341 &dnp->dn_blkptr[j], &czb); 1342 } 1343 1344 (void) printf("\n"); 1345} 1346 1347/*ARGSUSED*/ 1348static void 1349dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1350{ 1351 dsl_dir_phys_t *dd = data; 1352 time_t crtime; 1353 char nice[32]; 1354 1355 /* make sure nicenum has enough space */ 1356 CTASSERT(sizeof (nice) >= NN_NUMBUF_SZ); 1357 1358 if (dd == NULL) 1359 return; 1360 1361 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1362 1363 crtime = dd->dd_creation_time; 1364 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1365 (void) printf("\t\thead_dataset_obj = %llu\n", 1366 (u_longlong_t)dd->dd_head_dataset_obj); 1367 (void) printf("\t\tparent_dir_obj = %llu\n", 1368 (u_longlong_t)dd->dd_parent_obj); 1369 (void) printf("\t\torigin_obj = %llu\n", 1370 (u_longlong_t)dd->dd_origin_obj); 1371 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1372 (u_longlong_t)dd->dd_child_dir_zapobj); 1373 zdb_nicenum(dd->dd_used_bytes, nice, sizeof (nice)); 1374 (void) printf("\t\tused_bytes = %s\n", nice); 1375 zdb_nicenum(dd->dd_compressed_bytes, nice, sizeof (nice)); 1376 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1377 zdb_nicenum(dd->dd_uncompressed_bytes, nice, sizeof (nice)); 1378 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1379 zdb_nicenum(dd->dd_quota, nice, sizeof (nice)); 1380 (void) printf("\t\tquota = %s\n", nice); 1381 zdb_nicenum(dd->dd_reserved, nice, sizeof (nice)); 1382 (void) printf("\t\treserved = %s\n", nice); 1383 (void) printf("\t\tprops_zapobj = %llu\n", 1384 (u_longlong_t)dd->dd_props_zapobj); 1385 (void) printf("\t\tdeleg_zapobj = %llu\n", 1386 (u_longlong_t)dd->dd_deleg_zapobj); 1387 (void) printf("\t\tflags = %llx\n", 1388 (u_longlong_t)dd->dd_flags); 1389 1390#define DO(which) \ 1391 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice, \ 1392 sizeof (nice)); \ 1393 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1394 DO(HEAD); 1395 DO(SNAP); 1396 DO(CHILD); 1397 DO(CHILD_RSRV); 1398 DO(REFRSRV); 1399#undef DO 1400} 1401 1402/*ARGSUSED*/ 1403static void 1404dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1405{ 1406 dsl_dataset_phys_t *ds = data; 1407 time_t crtime; 1408 char used[32], compressed[32], uncompressed[32], unique[32]; 1409 char blkbuf[BP_SPRINTF_LEN]; 1410 1411 /* make sure nicenum has enough space */ 1412 CTASSERT(sizeof (used) >= NN_NUMBUF_SZ); 1413 CTASSERT(sizeof (compressed) >= NN_NUMBUF_SZ); 1414 CTASSERT(sizeof (uncompressed) >= NN_NUMBUF_SZ); 1415 CTASSERT(sizeof (unique) >= NN_NUMBUF_SZ); 1416 1417 if (ds == NULL) 1418 return; 1419 1420 ASSERT(size == sizeof (*ds)); 1421 crtime = ds->ds_creation_time; 1422 zdb_nicenum(ds->ds_referenced_bytes, used, sizeof (used)); 1423 zdb_nicenum(ds->ds_compressed_bytes, compressed, sizeof (compressed)); 1424 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed, 1425 sizeof (uncompressed)); 1426 zdb_nicenum(ds->ds_unique_bytes, unique, sizeof (unique)); 1427 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ds->ds_bp); 1428 1429 (void) printf("\t\tdir_obj = %llu\n", 1430 (u_longlong_t)ds->ds_dir_obj); 1431 (void) printf("\t\tprev_snap_obj = %llu\n", 1432 (u_longlong_t)ds->ds_prev_snap_obj); 1433 (void) printf("\t\tprev_snap_txg = %llu\n", 1434 (u_longlong_t)ds->ds_prev_snap_txg); 1435 (void) printf("\t\tnext_snap_obj = %llu\n", 1436 (u_longlong_t)ds->ds_next_snap_obj); 1437 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1438 (u_longlong_t)ds->ds_snapnames_zapobj); 1439 (void) printf("\t\tnum_children = %llu\n", 1440 (u_longlong_t)ds->ds_num_children); 1441 (void) printf("\t\tuserrefs_obj = %llu\n", 1442 (u_longlong_t)ds->ds_userrefs_obj); 1443 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1444 (void) printf("\t\tcreation_txg = %llu\n", 1445 (u_longlong_t)ds->ds_creation_txg); 1446 (void) printf("\t\tdeadlist_obj = %llu\n", 1447 (u_longlong_t)ds->ds_deadlist_obj); 1448 (void) printf("\t\tused_bytes = %s\n", used); 1449 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1450 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1451 (void) printf("\t\tunique = %s\n", unique); 1452 (void) printf("\t\tfsid_guid = %llu\n", 1453 (u_longlong_t)ds->ds_fsid_guid); 1454 (void) printf("\t\tguid = %llu\n", 1455 (u_longlong_t)ds->ds_guid); 1456 (void) printf("\t\tflags = %llx\n", 1457 (u_longlong_t)ds->ds_flags); 1458 (void) printf("\t\tnext_clones_obj = %llu\n", 1459 (u_longlong_t)ds->ds_next_clones_obj); 1460 (void) printf("\t\tprops_obj = %llu\n", 1461 (u_longlong_t)ds->ds_props_obj); 1462 (void) printf("\t\tbp = %s\n", blkbuf); 1463} 1464 1465/* ARGSUSED */ 1466static int 1467dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1468{ 1469 char blkbuf[BP_SPRINTF_LEN]; 1470 1471 if (bp->blk_birth != 0) { 1472 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 1473 (void) printf("\t%s\n", blkbuf); 1474 } 1475 return (0); 1476} 1477 1478static void 1479dump_bptree(objset_t *os, uint64_t obj, char *name) 1480{ 1481 char bytes[32]; 1482 bptree_phys_t *bt; 1483 dmu_buf_t *db; 1484 1485 /* make sure nicenum has enough space */ 1486 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1487 1488 if (dump_opt['d'] < 3) 1489 return; 1490 1491 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1492 bt = db->db_data; 1493 zdb_nicenum(bt->bt_bytes, bytes, sizeof (bytes)); 1494 (void) printf("\n %s: %llu datasets, %s\n", 1495 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1496 dmu_buf_rele(db, FTAG); 1497 1498 if (dump_opt['d'] < 5) 1499 return; 1500 1501 (void) printf("\n"); 1502 1503 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1504} 1505 1506/* ARGSUSED */ 1507static int 1508dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1509{ 1510 char blkbuf[BP_SPRINTF_LEN]; 1511 1512 ASSERT(bp->blk_birth != 0); 1513 snprintf_blkptr_compact(blkbuf, sizeof (blkbuf), bp); 1514 (void) printf("\t%s\n", blkbuf); 1515 return (0); 1516} 1517 1518static void 1519dump_full_bpobj(bpobj_t *bpo, char *name, int indent) 1520{ 1521 char bytes[32]; 1522 char comp[32]; 1523 char uncomp[32]; 1524 1525 /* make sure nicenum has enough space */ 1526 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1527 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1528 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1529 1530 if (dump_opt['d'] < 3) 1531 return; 1532 1533 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes, sizeof (bytes)); 1534 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1535 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp, sizeof (comp)); 1536 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp, sizeof (uncomp)); 1537 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1538 "%llu subobjs in object %llu, %s (%s/%s comp)\n", 1539 indent * 8, name, 1540 (u_longlong_t)bpo->bpo_object, 1541 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1542 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1543 (u_longlong_t)bpo->bpo_phys->bpo_subobjs, 1544 bytes, comp, uncomp); 1545 1546 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1547 uint64_t subobj; 1548 bpobj_t subbpo; 1549 int error; 1550 VERIFY0(dmu_read(bpo->bpo_os, 1551 bpo->bpo_phys->bpo_subobjs, 1552 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1553 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1554 if (error != 0) { 1555 (void) printf("ERROR %u while trying to open " 1556 "subobj id %llu\n", 1557 error, (u_longlong_t)subobj); 1558 continue; 1559 } 1560 dump_full_bpobj(&subbpo, "subobj", indent + 1); 1561 bpobj_close(&subbpo); 1562 } 1563 } else { 1564 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1565 indent * 8, name, 1566 (u_longlong_t)bpo->bpo_object, 1567 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1568 bytes); 1569 } 1570 1571 if (dump_opt['d'] < 5) 1572 return; 1573 1574 1575 if (indent == 0) { 1576 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1577 (void) printf("\n"); 1578 } 1579} 1580 1581static void 1582dump_deadlist(dsl_deadlist_t *dl) 1583{ 1584 dsl_deadlist_entry_t *dle; 1585 uint64_t unused; 1586 char bytes[32]; 1587 char comp[32]; 1588 char uncomp[32]; 1589 1590 /* make sure nicenum has enough space */ 1591 CTASSERT(sizeof (bytes) >= NN_NUMBUF_SZ); 1592 CTASSERT(sizeof (comp) >= NN_NUMBUF_SZ); 1593 CTASSERT(sizeof (uncomp) >= NN_NUMBUF_SZ); 1594 1595 if (dump_opt['d'] < 3) 1596 return; 1597 1598 if (dl->dl_oldfmt) { 1599 dump_full_bpobj(&dl->dl_bpobj, "old-format deadlist", 0); 1600 return; 1601 } 1602 1603 zdb_nicenum(dl->dl_phys->dl_used, bytes, sizeof (bytes)); 1604 zdb_nicenum(dl->dl_phys->dl_comp, comp, sizeof (comp)); 1605 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp, sizeof (uncomp)); 1606 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1607 bytes, comp, uncomp); 1608 1609 if (dump_opt['d'] < 4) 1610 return; 1611 1612 (void) printf("\n"); 1613 1614 /* force the tree to be loaded */ 1615 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1616 1617 for (dle = avl_first(&dl->dl_tree); dle; 1618 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1619 if (dump_opt['d'] >= 5) { 1620 char buf[128]; 1621 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1622 (longlong_t)dle->dle_mintxg, 1623 (longlong_t)dle->dle_bpobj.bpo_object); 1624 dump_full_bpobj(&dle->dle_bpobj, buf, 0); 1625 } else { 1626 (void) printf("mintxg %llu -> obj %llu\n", 1627 (longlong_t)dle->dle_mintxg, 1628 (longlong_t)dle->dle_bpobj.bpo_object); 1629 1630 } 1631 } 1632} 1633 1634static avl_tree_t idx_tree; 1635static avl_tree_t domain_tree; 1636static boolean_t fuid_table_loaded; 1637static boolean_t sa_loaded; 1638sa_attr_type_t *sa_attr_table; 1639 1640static void 1641fuid_table_destroy() 1642{ 1643 if (fuid_table_loaded) { 1644 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1645 fuid_table_loaded = B_FALSE; 1646 } 1647} 1648 1649/* 1650 * print uid or gid information. 1651 * For normal POSIX id just the id is printed in decimal format. 1652 * For CIFS files with FUID the fuid is printed in hex followed by 1653 * the domain-rid string. 1654 */ 1655static void 1656print_idstr(uint64_t id, const char *id_type) 1657{ 1658 if (FUID_INDEX(id)) { 1659 char *domain; 1660 1661 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1662 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1663 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1664 } else { 1665 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1666 } 1667 1668} 1669 1670static void 1671dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1672{ 1673 uint32_t uid_idx, gid_idx; 1674 1675 uid_idx = FUID_INDEX(uid); 1676 gid_idx = FUID_INDEX(gid); 1677 1678 /* Load domain table, if not already loaded */ 1679 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1680 uint64_t fuid_obj; 1681 1682 /* first find the fuid object. It lives in the master node */ 1683 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1684 8, 1, &fuid_obj) == 0); 1685 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1686 (void) zfs_fuid_table_load(os, fuid_obj, 1687 &idx_tree, &domain_tree); 1688 fuid_table_loaded = B_TRUE; 1689 } 1690 1691 print_idstr(uid, "uid"); 1692 print_idstr(gid, "gid"); 1693} 1694 1695/*ARGSUSED*/ 1696static void 1697dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1698{ 1699 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1700 sa_handle_t *hdl; 1701 uint64_t xattr, rdev, gen; 1702 uint64_t uid, gid, mode, fsize, parent, links; 1703 uint64_t pflags; 1704 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1705 time_t z_crtime, z_atime, z_mtime, z_ctime; 1706 sa_bulk_attr_t bulk[12]; 1707 int idx = 0; 1708 int error; 1709 1710 if (!sa_loaded) { 1711 uint64_t sa_attrs = 0; 1712 uint64_t version; 1713 1714 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1715 8, 1, &version) == 0); 1716 if (version >= ZPL_VERSION_SA) { 1717 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1718 8, 1, &sa_attrs) == 0); 1719 } 1720 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1721 ZPL_END, &sa_attr_table)) != 0) { 1722 (void) printf("sa_setup failed errno %d, can't " 1723 "display znode contents\n", error); 1724 return; 1725 } 1726 sa_loaded = B_TRUE; 1727 } 1728 1729 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1730 (void) printf("Failed to get handle for SA znode\n"); 1731 return; 1732 } 1733 1734 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1735 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1736 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1737 &links, 8); 1738 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1739 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1740 &mode, 8); 1741 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1742 NULL, &parent, 8); 1743 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1744 &fsize, 8); 1745 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1746 acctm, 16); 1747 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1748 modtm, 16); 1749 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1750 crtm, 16); 1751 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1752 chgtm, 16); 1753 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1754 &pflags, 8); 1755 1756 if (sa_bulk_lookup(hdl, bulk, idx)) { 1757 (void) sa_handle_destroy(hdl); 1758 return; 1759 } 1760 1761 z_crtime = (time_t)crtm[0]; 1762 z_atime = (time_t)acctm[0]; 1763 z_mtime = (time_t)modtm[0]; 1764 z_ctime = (time_t)chgtm[0]; 1765 1766 if (dump_opt['d'] > 4) { 1767 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1768 if (error != 0) { 1769 (void) snprintf(path, sizeof (path), 1770 "\?\?\?<object#%llu>", (u_longlong_t)object); 1771 } 1772 (void) printf("\tpath %s\n", path); 1773 } 1774 dump_uidgid(os, uid, gid); 1775 (void) printf("\tatime %s", ctime(&z_atime)); 1776 (void) printf("\tmtime %s", ctime(&z_mtime)); 1777 (void) printf("\tctime %s", ctime(&z_ctime)); 1778 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1779 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1780 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1781 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1782 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1783 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1784 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1785 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1786 sizeof (uint64_t)) == 0) 1787 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1788 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1789 sizeof (uint64_t)) == 0) 1790 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1791 sa_handle_destroy(hdl); 1792} 1793 1794/*ARGSUSED*/ 1795static void 1796dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1797{ 1798} 1799 1800/*ARGSUSED*/ 1801static void 1802dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1803{ 1804} 1805 1806static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1807 dump_none, /* unallocated */ 1808 dump_zap, /* object directory */ 1809 dump_uint64, /* object array */ 1810 dump_none, /* packed nvlist */ 1811 dump_packed_nvlist, /* packed nvlist size */ 1812 dump_none, /* bpobj */ 1813 dump_bpobj, /* bpobj header */ 1814 dump_none, /* SPA space map header */ 1815 dump_none, /* SPA space map */ 1816 dump_none, /* ZIL intent log */ 1817 dump_dnode, /* DMU dnode */ 1818 dump_dmu_objset, /* DMU objset */ 1819 dump_dsl_dir, /* DSL directory */ 1820 dump_zap, /* DSL directory child map */ 1821 dump_zap, /* DSL dataset snap map */ 1822 dump_zap, /* DSL props */ 1823 dump_dsl_dataset, /* DSL dataset */ 1824 dump_znode, /* ZFS znode */ 1825 dump_acl, /* ZFS V0 ACL */ 1826 dump_uint8, /* ZFS plain file */ 1827 dump_zpldir, /* ZFS directory */ 1828 dump_zap, /* ZFS master node */ 1829 dump_zap, /* ZFS delete queue */ 1830 dump_uint8, /* zvol object */ 1831 dump_zap, /* zvol prop */ 1832 dump_uint8, /* other uint8[] */ 1833 dump_uint64, /* other uint64[] */ 1834 dump_zap, /* other ZAP */ 1835 dump_zap, /* persistent error log */ 1836 dump_uint8, /* SPA history */ 1837 dump_history_offsets, /* SPA history offsets */ 1838 dump_zap, /* Pool properties */ 1839 dump_zap, /* DSL permissions */ 1840 dump_acl, /* ZFS ACL */ 1841 dump_uint8, /* ZFS SYSACL */ 1842 dump_none, /* FUID nvlist */ 1843 dump_packed_nvlist, /* FUID nvlist size */ 1844 dump_zap, /* DSL dataset next clones */ 1845 dump_zap, /* DSL scrub queue */ 1846 dump_zap, /* ZFS user/group used */ 1847 dump_zap, /* ZFS user/group quota */ 1848 dump_zap, /* snapshot refcount tags */ 1849 dump_ddt_zap, /* DDT ZAP object */ 1850 dump_zap, /* DDT statistics */ 1851 dump_znode, /* SA object */ 1852 dump_zap, /* SA Master Node */ 1853 dump_sa_attrs, /* SA attribute registration */ 1854 dump_sa_layouts, /* SA attribute layouts */ 1855 dump_zap, /* DSL scrub translations */ 1856 dump_none, /* fake dedup BP */ 1857 dump_zap, /* deadlist */ 1858 dump_none, /* deadlist hdr */ 1859 dump_zap, /* dsl clones */ 1860 dump_bpobj_subobjs, /* bpobj subobjs */ 1861 dump_unknown, /* Unknown type, must be last */ 1862}; 1863 1864static void 1865dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1866{ 1867 dmu_buf_t *db = NULL; 1868 dmu_object_info_t doi; 1869 dnode_t *dn; 1870 void *bonus = NULL; 1871 size_t bsize = 0; 1872 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1873 char bonus_size[32]; 1874 char aux[50]; 1875 int error; 1876 1877 /* make sure nicenum has enough space */ 1878 CTASSERT(sizeof (iblk) >= NN_NUMBUF_SZ); 1879 CTASSERT(sizeof (dblk) >= NN_NUMBUF_SZ); 1880 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 1881 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 1882 CTASSERT(sizeof (bonus_size) >= NN_NUMBUF_SZ); 1883 1884 if (*print_header) { 1885 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1886 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1887 "%full", "type"); 1888 *print_header = 0; 1889 } 1890 1891 if (object == 0) { 1892 dn = DMU_META_DNODE(os); 1893 } else { 1894 error = dmu_bonus_hold(os, object, FTAG, &db); 1895 if (error) 1896 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1897 object, error); 1898 bonus = db->db_data; 1899 bsize = db->db_size; 1900 dn = DB_DNODE((dmu_buf_impl_t *)db); 1901 } 1902 dmu_object_info_from_dnode(dn, &doi); 1903 1904 zdb_nicenum(doi.doi_metadata_block_size, iblk, sizeof (iblk)); 1905 zdb_nicenum(doi.doi_data_block_size, dblk, sizeof (dblk)); 1906 zdb_nicenum(doi.doi_max_offset, lsize, sizeof (lsize)); 1907 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize, sizeof (asize)); 1908 zdb_nicenum(doi.doi_bonus_size, bonus_size, sizeof (bonus_size)); 1909 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1910 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1911 doi.doi_max_offset); 1912 1913 aux[0] = '\0'; 1914 1915 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1916 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1917 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1918 } 1919 1920 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1921 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1922 ZDB_COMPRESS_NAME(doi.doi_compress)); 1923 } 1924 1925 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1926 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1927 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1928 1929 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1930 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1931 "", "", "", "", "", bonus_size, "bonus", 1932 ZDB_OT_NAME(doi.doi_bonus_type)); 1933 } 1934 1935 if (verbosity >= 4) { 1936 (void) printf("\tdnode flags: %s%s%s\n", 1937 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1938 "USED_BYTES " : "", 1939 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1940 "USERUSED_ACCOUNTED " : "", 1941 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1942 "SPILL_BLKPTR" : ""); 1943 (void) printf("\tdnode maxblkid: %llu\n", 1944 (longlong_t)dn->dn_phys->dn_maxblkid); 1945 1946 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1947 bonus, bsize); 1948 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1949 *print_header = 1; 1950 } 1951 1952 if (verbosity >= 5) 1953 dump_indirect(dn); 1954 1955 if (verbosity >= 5) { 1956 /* 1957 * Report the list of segments that comprise the object. 1958 */ 1959 uint64_t start = 0; 1960 uint64_t end; 1961 uint64_t blkfill = 1; 1962 int minlvl = 1; 1963 1964 if (dn->dn_type == DMU_OT_DNODE) { 1965 minlvl = 0; 1966 blkfill = DNODES_PER_BLOCK; 1967 } 1968 1969 for (;;) { 1970 char segsize[32]; 1971 /* make sure nicenum has enough space */ 1972 CTASSERT(sizeof (segsize) >= NN_NUMBUF_SZ); 1973 error = dnode_next_offset(dn, 1974 0, &start, minlvl, blkfill, 0); 1975 if (error) 1976 break; 1977 end = start; 1978 error = dnode_next_offset(dn, 1979 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1980 zdb_nicenum(end - start, segsize, sizeof (segsize)); 1981 (void) printf("\t\tsegment [%016llx, %016llx)" 1982 " size %5s\n", (u_longlong_t)start, 1983 (u_longlong_t)end, segsize); 1984 if (error) 1985 break; 1986 start = end; 1987 } 1988 } 1989 1990 if (db != NULL) 1991 dmu_buf_rele(db, FTAG); 1992} 1993 1994static char *objset_types[DMU_OST_NUMTYPES] = { 1995 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1996 1997static void 1998dump_dir(objset_t *os) 1999{ 2000 dmu_objset_stats_t dds; 2001 uint64_t object, object_count; 2002 uint64_t refdbytes, usedobjs, scratch; 2003 char numbuf[32]; 2004 char blkbuf[BP_SPRINTF_LEN + 20]; 2005 char osname[ZFS_MAX_DATASET_NAME_LEN]; 2006 char *type = "UNKNOWN"; 2007 int verbosity = dump_opt['d']; 2008 int print_header = 1; 2009 int i, error; 2010 2011 /* make sure nicenum has enough space */ 2012 CTASSERT(sizeof (numbuf) >= NN_NUMBUF_SZ); 2013 2014 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 2015 dmu_objset_fast_stat(os, &dds); 2016 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 2017 2018 if (dds.dds_type < DMU_OST_NUMTYPES) 2019 type = objset_types[dds.dds_type]; 2020 2021 if (dds.dds_type == DMU_OST_META) { 2022 dds.dds_creation_txg = TXG_INITIAL; 2023 usedobjs = BP_GET_FILL(os->os_rootbp); 2024 refdbytes = dsl_dir_phys(os->os_spa->spa_dsl_pool->dp_mos_dir)-> 2025 dd_used_bytes; 2026 } else { 2027 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 2028 } 2029 2030 ASSERT3U(usedobjs, ==, BP_GET_FILL(os->os_rootbp)); 2031 2032 zdb_nicenum(refdbytes, numbuf, sizeof (numbuf)); 2033 2034 if (verbosity >= 4) { 2035 (void) snprintf(blkbuf, sizeof (blkbuf), ", rootbp "); 2036 (void) snprintf_blkptr(blkbuf + strlen(blkbuf), 2037 sizeof (blkbuf) - strlen(blkbuf), os->os_rootbp); 2038 } else { 2039 blkbuf[0] = '\0'; 2040 } 2041 2042 dmu_objset_name(os, osname); 2043 2044 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 2045 "%s, %llu objects%s\n", 2046 osname, type, (u_longlong_t)dmu_objset_id(os), 2047 (u_longlong_t)dds.dds_creation_txg, 2048 numbuf, (u_longlong_t)usedobjs, blkbuf); 2049 2050 if (zopt_objects != 0) { 2051 for (i = 0; i < zopt_objects; i++) 2052 dump_object(os, zopt_object[i], verbosity, 2053 &print_header); 2054 (void) printf("\n"); 2055 return; 2056 } 2057 2058 if (dump_opt['i'] != 0 || verbosity >= 2) 2059 dump_intent_log(dmu_objset_zil(os)); 2060 2061 if (dmu_objset_ds(os) != NULL) 2062 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 2063 2064 if (verbosity < 2) 2065 return; 2066 2067 if (BP_IS_HOLE(os->os_rootbp)) 2068 return; 2069 2070 dump_object(os, 0, verbosity, &print_header); 2071 object_count = 0; 2072 if (DMU_USERUSED_DNODE(os) != NULL && 2073 DMU_USERUSED_DNODE(os)->dn_type != 0) { 2074 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 2075 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 2076 } 2077 2078 object = 0; 2079 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 2080 dump_object(os, object, verbosity, &print_header); 2081 object_count++; 2082 } 2083 2084 ASSERT3U(object_count, ==, usedobjs); 2085 2086 (void) printf("\n"); 2087 2088 if (error != ESRCH) { 2089 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 2090 abort(); 2091 } 2092} 2093 2094static void 2095dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 2096{ 2097 time_t timestamp = ub->ub_timestamp; 2098 2099 (void) printf(header ? header : ""); 2100 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 2101 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 2102 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 2103 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 2104 (void) printf("\ttimestamp = %llu UTC = %s", 2105 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 2106 if (dump_opt['u'] >= 3) { 2107 char blkbuf[BP_SPRINTF_LEN]; 2108 snprintf_blkptr(blkbuf, sizeof (blkbuf), &ub->ub_rootbp); 2109 (void) printf("\trootbp = %s\n", blkbuf); 2110 } 2111 (void) printf(footer ? footer : ""); 2112} 2113 2114static void 2115dump_config(spa_t *spa) 2116{ 2117 dmu_buf_t *db; 2118 size_t nvsize = 0; 2119 int error = 0; 2120 2121 2122 error = dmu_bonus_hold(spa->spa_meta_objset, 2123 spa->spa_config_object, FTAG, &db); 2124 2125 if (error == 0) { 2126 nvsize = *(uint64_t *)db->db_data; 2127 dmu_buf_rele(db, FTAG); 2128 2129 (void) printf("\nMOS Configuration:\n"); 2130 dump_packed_nvlist(spa->spa_meta_objset, 2131 spa->spa_config_object, (void *)&nvsize, 1); 2132 } else { 2133 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 2134 (u_longlong_t)spa->spa_config_object, error); 2135 } 2136} 2137 2138static void 2139dump_cachefile(const char *cachefile) 2140{ 2141 int fd; 2142 struct stat64 statbuf; 2143 char *buf; 2144 nvlist_t *config; 2145 2146 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 2147 (void) printf("cannot open '%s': %s\n", cachefile, 2148 strerror(errno)); 2149 exit(1); 2150 } 2151 2152 if (fstat64(fd, &statbuf) != 0) { 2153 (void) printf("failed to stat '%s': %s\n", cachefile, 2154 strerror(errno)); 2155 exit(1); 2156 } 2157 2158 if ((buf = malloc(statbuf.st_size)) == NULL) { 2159 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 2160 (u_longlong_t)statbuf.st_size); 2161 exit(1); 2162 } 2163 2164 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 2165 (void) fprintf(stderr, "failed to read %llu bytes\n", 2166 (u_longlong_t)statbuf.st_size); 2167 exit(1); 2168 } 2169 2170 (void) close(fd); 2171 2172 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 2173 (void) fprintf(stderr, "failed to unpack nvlist\n"); 2174 exit(1); 2175 } 2176 2177 free(buf); 2178 2179 dump_nvlist(config, 0); 2180 2181 nvlist_free(config); 2182} 2183 2184#define ZDB_MAX_UB_HEADER_SIZE 32 2185 2186static void 2187dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 2188{ 2189 vdev_t vd; 2190 vdev_t *vdp = &vd; 2191 char header[ZDB_MAX_UB_HEADER_SIZE]; 2192 2193 vd.vdev_ashift = ashift; 2194 vdp->vdev_top = vdp; 2195 2196 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 2197 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 2198 uberblock_t *ub = (void *)((char *)lbl + uoff); 2199 2200 if (uberblock_verify(ub)) 2201 continue; 2202 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 2203 "Uberblock[%d]\n", i); 2204 dump_uberblock(ub, header, ""); 2205 } 2206} 2207 2208static int 2209dump_label(const char *dev) 2210{ 2211 int fd; 2212 vdev_label_t label; 2213 char path[MAXPATHLEN]; 2214 char *buf = label.vl_vdev_phys.vp_nvlist; 2215 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 2216 struct stat64 statbuf; 2217 uint64_t psize, ashift; 2218 boolean_t label_found = B_FALSE; 2219 2220 (void) strlcpy(path, dev, sizeof (path)); 2221 if (dev[0] == '/') { 2222 if (strncmp(dev, ZFS_DISK_ROOTD, 2223 strlen(ZFS_DISK_ROOTD)) == 0) { 2224 (void) snprintf(path, sizeof (path), "%s%s", 2225 ZFS_RDISK_ROOTD, dev + strlen(ZFS_DISK_ROOTD)); 2226 } 2227 } else if (stat64(path, &statbuf) != 0) { 2228 char *s; 2229 2230 (void) snprintf(path, sizeof (path), "%s%s", ZFS_RDISK_ROOTD, 2231 dev); 2232 if ((s = strrchr(dev, 's')) == NULL || !isdigit(*(s + 1))) 2233 (void) strlcat(path, "s0", sizeof (path)); 2234 } 2235 2236 if (stat64(path, &statbuf) != 0) { 2237 (void) printf("failed to stat '%s': %s\n", path, 2238 strerror(errno)); 2239 exit(1); 2240 } 2241 2242 if (S_ISBLK(statbuf.st_mode)) { 2243 (void) printf("cannot use '%s': character device required\n", 2244 path); 2245 exit(1); 2246 } 2247 2248 if ((fd = open64(path, O_RDONLY)) < 0) { 2249 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 2250 exit(1); 2251 } 2252 2253 psize = statbuf.st_size; 2254 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2255 2256 for (int l = 0; l < VDEV_LABELS; l++) { 2257 nvlist_t *config = NULL; 2258 2259 if (!dump_opt['q']) { 2260 (void) printf("------------------------------------\n"); 2261 (void) printf("LABEL %d\n", l); 2262 (void) printf("------------------------------------\n"); 2263 } 2264 2265 if (pread64(fd, &label, sizeof (label), 2266 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2267 if (!dump_opt['q']) 2268 (void) printf("failed to read label %d\n", l); 2269 continue; 2270 } 2271 2272 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2273 if (!dump_opt['q']) 2274 (void) printf("failed to unpack label %d\n", l); 2275 ashift = SPA_MINBLOCKSHIFT; 2276 } else { 2277 nvlist_t *vdev_tree = NULL; 2278 2279 if (!dump_opt['q']) 2280 dump_nvlist(config, 4); 2281 if ((nvlist_lookup_nvlist(config, 2282 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2283 (nvlist_lookup_uint64(vdev_tree, 2284 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2285 ashift = SPA_MINBLOCKSHIFT; 2286 nvlist_free(config); 2287 label_found = B_TRUE; 2288 } 2289 if (dump_opt['u']) 2290 dump_label_uberblocks(&label, ashift); 2291 } 2292 2293 (void) close(fd); 2294 2295 return (label_found ? 0 : 2); 2296} 2297 2298static uint64_t dataset_feature_count[SPA_FEATURES]; 2299 2300/*ARGSUSED*/ 2301static int 2302dump_one_dir(const char *dsname, void *arg) 2303{ 2304 int error; 2305 objset_t *os; 2306 2307 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2308 if (error) { 2309 (void) printf("Could not open %s, error %d\n", dsname, error); 2310 return (0); 2311 } 2312 2313 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 2314 if (!dmu_objset_ds(os)->ds_feature_inuse[f]) 2315 continue; 2316 ASSERT(spa_feature_table[f].fi_flags & 2317 ZFEATURE_FLAG_PER_DATASET); 2318 dataset_feature_count[f]++; 2319 } 2320 2321 dump_dir(os); 2322 dmu_objset_disown(os, FTAG); 2323 fuid_table_destroy(); 2324 sa_loaded = B_FALSE; 2325 return (0); 2326} 2327 2328/* 2329 * Block statistics. 2330 */ 2331#define PSIZE_HISTO_SIZE (SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 2) 2332typedef struct zdb_blkstats { 2333 uint64_t zb_asize; 2334 uint64_t zb_lsize; 2335 uint64_t zb_psize; 2336 uint64_t zb_count; 2337 uint64_t zb_gangs; 2338 uint64_t zb_ditto_samevdev; 2339 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2340} zdb_blkstats_t; 2341 2342/* 2343 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2344 */ 2345#define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2346#define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2347#define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2348#define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2349 2350static char *zdb_ot_extname[] = { 2351 "deferred free", 2352 "dedup ditto", 2353 "other", 2354 "Total", 2355}; 2356 2357#define ZB_TOTAL DN_MAX_LEVELS 2358 2359typedef struct zdb_cb { 2360 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2361 uint64_t zcb_dedup_asize; 2362 uint64_t zcb_dedup_blocks; 2363 uint64_t zcb_embedded_blocks[NUM_BP_EMBEDDED_TYPES]; 2364 uint64_t zcb_embedded_histogram[NUM_BP_EMBEDDED_TYPES] 2365 [BPE_PAYLOAD_SIZE]; 2366 uint64_t zcb_start; 2367 uint64_t zcb_lastprint; 2368 uint64_t zcb_totalasize; 2369 uint64_t zcb_errors[256]; 2370 int zcb_readfails; 2371 int zcb_haderrors; 2372 spa_t *zcb_spa; 2373} zdb_cb_t; 2374 2375static void 2376zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2377 dmu_object_type_t type) 2378{ 2379 uint64_t refcnt = 0; 2380 2381 ASSERT(type < ZDB_OT_TOTAL); 2382 2383 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2384 return; 2385 2386 for (int i = 0; i < 4; i++) { 2387 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2388 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2389 int equal; 2390 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2391 2392 zb->zb_asize += BP_GET_ASIZE(bp); 2393 zb->zb_lsize += BP_GET_LSIZE(bp); 2394 zb->zb_psize += BP_GET_PSIZE(bp); 2395 zb->zb_count++; 2396 2397 /* 2398 * The histogram is only big enough to record blocks up to 2399 * SPA_OLD_MAXBLOCKSIZE; larger blocks go into the last, 2400 * "other", bucket. 2401 */ 2402 int idx = BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT; 2403 idx = MIN(idx, SPA_OLD_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1); 2404 zb->zb_psize_histogram[idx]++; 2405 2406 zb->zb_gangs += BP_COUNT_GANG(bp); 2407 2408 switch (BP_GET_NDVAS(bp)) { 2409 case 2: 2410 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2411 DVA_GET_VDEV(&bp->blk_dva[1])) 2412 zb->zb_ditto_samevdev++; 2413 break; 2414 case 3: 2415 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2416 DVA_GET_VDEV(&bp->blk_dva[1])) + 2417 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2418 DVA_GET_VDEV(&bp->blk_dva[2])) + 2419 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2420 DVA_GET_VDEV(&bp->blk_dva[2])); 2421 if (equal != 0) 2422 zb->zb_ditto_samevdev++; 2423 break; 2424 } 2425 2426 } 2427 2428 if (BP_IS_EMBEDDED(bp)) { 2429 zcb->zcb_embedded_blocks[BPE_GET_ETYPE(bp)]++; 2430 zcb->zcb_embedded_histogram[BPE_GET_ETYPE(bp)] 2431 [BPE_GET_PSIZE(bp)]++; 2432 return; 2433 } 2434 2435 if (dump_opt['L']) 2436 return; 2437 2438 if (BP_GET_DEDUP(bp)) { 2439 ddt_t *ddt; 2440 ddt_entry_t *dde; 2441 2442 ddt = ddt_select(zcb->zcb_spa, bp); 2443 ddt_enter(ddt); 2444 dde = ddt_lookup(ddt, bp, B_FALSE); 2445 2446 if (dde == NULL) { 2447 refcnt = 0; 2448 } else { 2449 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2450 ddt_phys_decref(ddp); 2451 refcnt = ddp->ddp_refcnt; 2452 if (ddt_phys_total_refcnt(dde) == 0) 2453 ddt_remove(ddt, dde); 2454 } 2455 ddt_exit(ddt); 2456 } 2457 2458 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2459 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2460 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2461} 2462 2463/* ARGSUSED */ 2464static void 2465zdb_blkptr_done(zio_t *zio) 2466{ 2467 spa_t *spa = zio->io_spa; 2468 blkptr_t *bp = zio->io_bp; 2469 int ioerr = zio->io_error; 2470 zdb_cb_t *zcb = zio->io_private; 2471 zbookmark_phys_t *zb = &zio->io_bookmark; 2472 2473 zio_data_buf_free(zio->io_data, zio->io_size); 2474 2475 mutex_enter(&spa->spa_scrub_lock); 2476 spa->spa_scrub_inflight--; 2477 cv_broadcast(&spa->spa_scrub_io_cv); 2478 2479 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2480 char blkbuf[BP_SPRINTF_LEN]; 2481 2482 zcb->zcb_haderrors = 1; 2483 zcb->zcb_errors[ioerr]++; 2484 2485 if (dump_opt['b'] >= 2) 2486 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2487 else 2488 blkbuf[0] = '\0'; 2489 2490 (void) printf("zdb_blkptr_cb: " 2491 "Got error %d reading " 2492 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2493 ioerr, 2494 (u_longlong_t)zb->zb_objset, 2495 (u_longlong_t)zb->zb_object, 2496 (u_longlong_t)zb->zb_level, 2497 (u_longlong_t)zb->zb_blkid, 2498 blkbuf); 2499 } 2500 mutex_exit(&spa->spa_scrub_lock); 2501} 2502 2503/* ARGSUSED */ 2504static int 2505zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2506 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 2507{ 2508 zdb_cb_t *zcb = arg; 2509 dmu_object_type_t type; 2510 boolean_t is_metadata; 2511 2512 if (bp == NULL) 2513 return (0); 2514 2515 if (dump_opt['b'] >= 5 && bp->blk_birth > 0) { 2516 char blkbuf[BP_SPRINTF_LEN]; 2517 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2518 (void) printf("objset %llu object %llu " 2519 "level %lld offset 0x%llx %s\n", 2520 (u_longlong_t)zb->zb_objset, 2521 (u_longlong_t)zb->zb_object, 2522 (longlong_t)zb->zb_level, 2523 (u_longlong_t)blkid2offset(dnp, bp, zb), 2524 blkbuf); 2525 } 2526 2527 if (BP_IS_HOLE(bp)) 2528 return (0); 2529 2530 type = BP_GET_TYPE(bp); 2531 2532 zdb_count_block(zcb, zilog, bp, 2533 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2534 2535 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2536 2537 if (!BP_IS_EMBEDDED(bp) && 2538 (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata))) { 2539 size_t size = BP_GET_PSIZE(bp); 2540 void *data = zio_data_buf_alloc(size); 2541 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2542 2543 /* If it's an intent log block, failure is expected. */ 2544 if (zb->zb_level == ZB_ZIL_LEVEL) 2545 flags |= ZIO_FLAG_SPECULATIVE; 2546 2547 mutex_enter(&spa->spa_scrub_lock); 2548 while (spa->spa_scrub_inflight > max_inflight) 2549 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2550 spa->spa_scrub_inflight++; 2551 mutex_exit(&spa->spa_scrub_lock); 2552 2553 zio_nowait(zio_read(NULL, spa, bp, data, size, 2554 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2555 } 2556 2557 zcb->zcb_readfails = 0; 2558 2559 /* only call gethrtime() every 100 blocks */ 2560 static int iters; 2561 if (++iters > 100) 2562 iters = 0; 2563 else 2564 return (0); 2565 2566 if (dump_opt['b'] < 5 && gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2567 uint64_t now = gethrtime(); 2568 char buf[10]; 2569 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2570 int kb_per_sec = 2571 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2572 int sec_remaining = 2573 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2574 2575 /* make sure nicenum has enough space */ 2576 CTASSERT(sizeof (buf) >= NN_NUMBUF_SZ); 2577 2578 zfs_nicenum(bytes, buf, sizeof (buf)); 2579 (void) fprintf(stderr, 2580 "\r%5s completed (%4dMB/s) " 2581 "estimated time remaining: %uhr %02umin %02usec ", 2582 buf, kb_per_sec / 1024, 2583 sec_remaining / 60 / 60, 2584 sec_remaining / 60 % 60, 2585 sec_remaining % 60); 2586 2587 zcb->zcb_lastprint = now; 2588 } 2589 2590 return (0); 2591} 2592 2593static void 2594zdb_leak(void *arg, uint64_t start, uint64_t size) 2595{ 2596 vdev_t *vd = arg; 2597 2598 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2599 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2600} 2601 2602static metaslab_ops_t zdb_metaslab_ops = { 2603 NULL /* alloc */ 2604}; 2605 2606static void 2607zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2608{ 2609 ddt_bookmark_t ddb = { 0 }; 2610 ddt_entry_t dde; 2611 int error; 2612 2613 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2614 blkptr_t blk; 2615 ddt_phys_t *ddp = dde.dde_phys; 2616 2617 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2618 return; 2619 2620 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2621 2622 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2623 if (ddp->ddp_phys_birth == 0) 2624 continue; 2625 ddt_bp_create(ddb.ddb_checksum, 2626 &dde.dde_key, ddp, &blk); 2627 if (p == DDT_PHYS_DITTO) { 2628 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2629 } else { 2630 zcb->zcb_dedup_asize += 2631 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2632 zcb->zcb_dedup_blocks++; 2633 } 2634 } 2635 if (!dump_opt['L']) { 2636 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2637 ddt_enter(ddt); 2638 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2639 ddt_exit(ddt); 2640 } 2641 } 2642 2643 ASSERT(error == ENOENT); 2644} 2645 2646static void 2647zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2648{ 2649 zcb->zcb_spa = spa; 2650 2651 if (!dump_opt['L']) { 2652 vdev_t *rvd = spa->spa_root_vdev; 2653 for (uint64_t c = 0; c < rvd->vdev_children; c++) { 2654 vdev_t *vd = rvd->vdev_child[c]; 2655 for (uint64_t m = 0; m < vd->vdev_ms_count; m++) { 2656 metaslab_t *msp = vd->vdev_ms[m]; 2657 mutex_enter(&msp->ms_lock); 2658 metaslab_unload(msp); 2659 2660 /* 2661 * For leak detection, we overload the metaslab 2662 * ms_tree to contain allocated segments 2663 * instead of free segments. As a result, 2664 * we can't use the normal metaslab_load/unload 2665 * interfaces. 2666 */ 2667 if (msp->ms_sm != NULL) { 2668 (void) fprintf(stderr, 2669 "\rloading space map for " 2670 "vdev %llu of %llu, " 2671 "metaslab %llu of %llu ...", 2672 (longlong_t)c, 2673 (longlong_t)rvd->vdev_children, 2674 (longlong_t)m, 2675 (longlong_t)vd->vdev_ms_count); 2676 2677 msp->ms_ops = &zdb_metaslab_ops; 2678 2679 /* 2680 * We don't want to spend the CPU 2681 * manipulating the size-ordered 2682 * tree, so clear the range_tree 2683 * ops. 2684 */ 2685 msp->ms_tree->rt_ops = NULL; 2686 VERIFY0(space_map_load(msp->ms_sm, 2687 msp->ms_tree, SM_ALLOC)); 2688 msp->ms_loaded = B_TRUE; 2689 } 2690 mutex_exit(&msp->ms_lock); 2691 } 2692 } 2693 (void) fprintf(stderr, "\n"); 2694 } 2695 2696 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2697 2698 zdb_ddt_leak_init(spa, zcb); 2699 2700 spa_config_exit(spa, SCL_CONFIG, FTAG); 2701} 2702 2703static void 2704zdb_leak_fini(spa_t *spa) 2705{ 2706 if (!dump_opt['L']) { 2707 vdev_t *rvd = spa->spa_root_vdev; 2708 for (int c = 0; c < rvd->vdev_children; c++) { 2709 vdev_t *vd = rvd->vdev_child[c]; 2710 for (int m = 0; m < vd->vdev_ms_count; m++) { 2711 metaslab_t *msp = vd->vdev_ms[m]; 2712 mutex_enter(&msp->ms_lock); 2713 2714 /* 2715 * The ms_tree has been overloaded to 2716 * contain allocated segments. Now that we 2717 * finished traversing all blocks, any 2718 * block that remains in the ms_tree 2719 * represents an allocated block that we 2720 * did not claim during the traversal. 2721 * Claimed blocks would have been removed 2722 * from the ms_tree. 2723 */ 2724 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2725 msp->ms_loaded = B_FALSE; 2726 2727 mutex_exit(&msp->ms_lock); 2728 } 2729 } 2730 } 2731} 2732 2733/* ARGSUSED */ 2734static int 2735count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2736{ 2737 zdb_cb_t *zcb = arg; 2738 2739 if (dump_opt['b'] >= 5) { 2740 char blkbuf[BP_SPRINTF_LEN]; 2741 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 2742 (void) printf("[%s] %s\n", 2743 "deferred free", blkbuf); 2744 } 2745 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2746 return (0); 2747} 2748 2749static int 2750dump_block_stats(spa_t *spa) 2751{ 2752 zdb_cb_t zcb = { 0 }; 2753 zdb_blkstats_t *zb, *tzb; 2754 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2755 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2756 boolean_t leaks = B_FALSE; 2757 2758 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2759 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2760 (dump_opt['c'] == 1) ? "metadata " : "", 2761 dump_opt['c'] ? "checksums " : "", 2762 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2763 !dump_opt['L'] ? "nothing leaked " : ""); 2764 2765 /* 2766 * Load all space maps as SM_ALLOC maps, then traverse the pool 2767 * claiming each block we discover. If the pool is perfectly 2768 * consistent, the space maps will be empty when we're done. 2769 * Anything left over is a leak; any block we can't claim (because 2770 * it's not part of any space map) is a double allocation, 2771 * reference to a freed block, or an unclaimed log block. 2772 */ 2773 zdb_leak_init(spa, &zcb); 2774 2775 /* 2776 * If there's a deferred-free bplist, process that first. 2777 */ 2778 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2779 count_block_cb, &zcb, NULL); 2780 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2781 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2782 count_block_cb, &zcb, NULL); 2783 } 2784 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2785 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2786 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2787 &zcb, NULL)); 2788 } 2789 2790 if (dump_opt['c'] > 1) 2791 flags |= TRAVERSE_PREFETCH_DATA; 2792 2793 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2794 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2795 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2796 2797 /* 2798 * If we've traversed the data blocks then we need to wait for those 2799 * I/Os to complete. We leverage "The Godfather" zio to wait on 2800 * all async I/Os to complete. 2801 */ 2802 if (dump_opt['c']) { 2803 for (int i = 0; i < max_ncpus; i++) { 2804 (void) zio_wait(spa->spa_async_zio_root[i]); 2805 spa->spa_async_zio_root[i] = zio_root(spa, NULL, NULL, 2806 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2807 ZIO_FLAG_GODFATHER); 2808 } 2809 } 2810 2811 if (zcb.zcb_haderrors) { 2812 (void) printf("\nError counts:\n\n"); 2813 (void) printf("\t%5s %s\n", "errno", "count"); 2814 for (int e = 0; e < 256; e++) { 2815 if (zcb.zcb_errors[e] != 0) { 2816 (void) printf("\t%5d %llu\n", 2817 e, (u_longlong_t)zcb.zcb_errors[e]); 2818 } 2819 } 2820 } 2821 2822 /* 2823 * Report any leaked segments. 2824 */ 2825 zdb_leak_fini(spa); 2826 2827 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2828 2829 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2830 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2831 2832 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2833 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2834 2835 if (total_found == total_alloc) { 2836 if (!dump_opt['L']) 2837 (void) printf("\n\tNo leaks (block sum matches space" 2838 " maps exactly)\n"); 2839 } else { 2840 (void) printf("block traversal size %llu != alloc %llu " 2841 "(%s %lld)\n", 2842 (u_longlong_t)total_found, 2843 (u_longlong_t)total_alloc, 2844 (dump_opt['L']) ? "unreachable" : "leaked", 2845 (longlong_t)(total_alloc - total_found)); 2846 leaks = B_TRUE; 2847 } 2848 2849 if (tzb->zb_count == 0) 2850 return (2); 2851 2852 (void) printf("\n"); 2853 (void) printf("\tbp count: %10llu\n", 2854 (u_longlong_t)tzb->zb_count); 2855 (void) printf("\tganged count: %10llu\n", 2856 (longlong_t)tzb->zb_gangs); 2857 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2858 (u_longlong_t)tzb->zb_lsize, 2859 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2860 (void) printf("\tbp physical: %10llu avg:" 2861 " %6llu compression: %6.2f\n", 2862 (u_longlong_t)tzb->zb_psize, 2863 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2864 (double)tzb->zb_lsize / tzb->zb_psize); 2865 (void) printf("\tbp allocated: %10llu avg:" 2866 " %6llu compression: %6.2f\n", 2867 (u_longlong_t)tzb->zb_asize, 2868 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2869 (double)tzb->zb_lsize / tzb->zb_asize); 2870 (void) printf("\tbp deduped: %10llu ref>1:" 2871 " %6llu deduplication: %6.2f\n", 2872 (u_longlong_t)zcb.zcb_dedup_asize, 2873 (u_longlong_t)zcb.zcb_dedup_blocks, 2874 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2875 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2876 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2877 2878 for (bp_embedded_type_t i = 0; i < NUM_BP_EMBEDDED_TYPES; i++) { 2879 if (zcb.zcb_embedded_blocks[i] == 0) 2880 continue; 2881 (void) printf("\n"); 2882 (void) printf("\tadditional, non-pointer bps of type %u: " 2883 "%10llu\n", 2884 i, (u_longlong_t)zcb.zcb_embedded_blocks[i]); 2885 2886 if (dump_opt['b'] >= 3) { 2887 (void) printf("\t number of (compressed) bytes: " 2888 "number of bps\n"); 2889 dump_histogram(zcb.zcb_embedded_histogram[i], 2890 sizeof (zcb.zcb_embedded_histogram[i]) / 2891 sizeof (zcb.zcb_embedded_histogram[i][0]), 0); 2892 } 2893 } 2894 2895 if (tzb->zb_ditto_samevdev != 0) { 2896 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2897 (longlong_t)tzb->zb_ditto_samevdev); 2898 } 2899 2900 if (dump_opt['b'] >= 2) { 2901 int l, t, level; 2902 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2903 "\t avg\t comp\t%%Total\tType\n"); 2904 2905 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2906 char csize[32], lsize[32], psize[32], asize[32]; 2907 char avg[32], gang[32]; 2908 char *typename; 2909 2910 /* make sure nicenum has enough space */ 2911 CTASSERT(sizeof (csize) >= NN_NUMBUF_SZ); 2912 CTASSERT(sizeof (lsize) >= NN_NUMBUF_SZ); 2913 CTASSERT(sizeof (psize) >= NN_NUMBUF_SZ); 2914 CTASSERT(sizeof (asize) >= NN_NUMBUF_SZ); 2915 CTASSERT(sizeof (avg) >= NN_NUMBUF_SZ); 2916 CTASSERT(sizeof (gang) >= NN_NUMBUF_SZ); 2917 2918 if (t < DMU_OT_NUMTYPES) 2919 typename = dmu_ot[t].ot_name; 2920 else 2921 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2922 2923 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2924 (void) printf("%6s\t%5s\t%5s\t%5s" 2925 "\t%5s\t%5s\t%6s\t%s\n", 2926 "-", 2927 "-", 2928 "-", 2929 "-", 2930 "-", 2931 "-", 2932 "-", 2933 typename); 2934 continue; 2935 } 2936 2937 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2938 level = (l == -1 ? ZB_TOTAL : l); 2939 zb = &zcb.zcb_type[level][t]; 2940 2941 if (zb->zb_asize == 0) 2942 continue; 2943 2944 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2945 continue; 2946 2947 if (level == 0 && zb->zb_asize == 2948 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2949 continue; 2950 2951 zdb_nicenum(zb->zb_count, csize, 2952 sizeof (csize)); 2953 zdb_nicenum(zb->zb_lsize, lsize, 2954 sizeof (lsize)); 2955 zdb_nicenum(zb->zb_psize, psize, 2956 sizeof (psize)); 2957 zdb_nicenum(zb->zb_asize, asize, 2958 sizeof (asize)); 2959 zdb_nicenum(zb->zb_asize / zb->zb_count, avg, 2960 sizeof (avg)); 2961 zdb_nicenum(zb->zb_gangs, gang, sizeof (gang)); 2962 2963 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2964 "\t%5.2f\t%6.2f\t", 2965 csize, lsize, psize, asize, avg, 2966 (double)zb->zb_lsize / zb->zb_psize, 2967 100.0 * zb->zb_asize / tzb->zb_asize); 2968 2969 if (level == ZB_TOTAL) 2970 (void) printf("%s\n", typename); 2971 else 2972 (void) printf(" L%d %s\n", 2973 level, typename); 2974 2975 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2976 (void) printf("\t number of ganged " 2977 "blocks: %s\n", gang); 2978 } 2979 2980 if (dump_opt['b'] >= 4) { 2981 (void) printf("psize " 2982 "(in 512-byte sectors): " 2983 "number of blocks\n"); 2984 dump_histogram(zb->zb_psize_histogram, 2985 PSIZE_HISTO_SIZE, 0); 2986 } 2987 } 2988 } 2989 } 2990 2991 (void) printf("\n"); 2992 2993 if (leaks) 2994 return (2); 2995 2996 if (zcb.zcb_haderrors) 2997 return (3); 2998 2999 return (0); 3000} 3001 3002typedef struct zdb_ddt_entry { 3003 ddt_key_t zdde_key; 3004 uint64_t zdde_ref_blocks; 3005 uint64_t zdde_ref_lsize; 3006 uint64_t zdde_ref_psize; 3007 uint64_t zdde_ref_dsize; 3008 avl_node_t zdde_node; 3009} zdb_ddt_entry_t; 3010 3011/* ARGSUSED */ 3012static int 3013zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 3014 const zbookmark_phys_t *zb, const dnode_phys_t *dnp, void *arg) 3015{ 3016 avl_tree_t *t = arg; 3017 avl_index_t where; 3018 zdb_ddt_entry_t *zdde, zdde_search; 3019 3020 if (bp == NULL || BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp)) 3021 return (0); 3022 3023 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 3024 (void) printf("traversing objset %llu, %llu objects, " 3025 "%lu blocks so far\n", 3026 (u_longlong_t)zb->zb_objset, 3027 (u_longlong_t)BP_GET_FILL(bp), 3028 avl_numnodes(t)); 3029 } 3030 3031 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 3032 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 3033 return (0); 3034 3035 ddt_key_fill(&zdde_search.zdde_key, bp); 3036 3037 zdde = avl_find(t, &zdde_search, &where); 3038 3039 if (zdde == NULL) { 3040 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 3041 zdde->zdde_key = zdde_search.zdde_key; 3042 avl_insert(t, zdde, where); 3043 } 3044 3045 zdde->zdde_ref_blocks += 1; 3046 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 3047 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 3048 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 3049 3050 return (0); 3051} 3052 3053static void 3054dump_simulated_ddt(spa_t *spa) 3055{ 3056 avl_tree_t t; 3057 void *cookie = NULL; 3058 zdb_ddt_entry_t *zdde; 3059 ddt_histogram_t ddh_total = { 0 }; 3060 ddt_stat_t dds_total = { 0 }; 3061 3062 avl_create(&t, ddt_entry_compare, 3063 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 3064 3065 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 3066 3067 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 3068 zdb_ddt_add_cb, &t); 3069 3070 spa_config_exit(spa, SCL_CONFIG, FTAG); 3071 3072 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 3073 ddt_stat_t dds; 3074 uint64_t refcnt = zdde->zdde_ref_blocks; 3075 ASSERT(refcnt != 0); 3076 3077 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 3078 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 3079 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 3080 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 3081 3082 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 3083 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 3084 dds.dds_ref_psize = zdde->zdde_ref_psize; 3085 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 3086 3087 ddt_stat_add(&ddh_total.ddh_stat[highbit64(refcnt) - 1], 3088 &dds, 0); 3089 3090 umem_free(zdde, sizeof (*zdde)); 3091 } 3092 3093 avl_destroy(&t); 3094 3095 ddt_histogram_stat(&dds_total, &ddh_total); 3096 3097 (void) printf("Simulated DDT histogram:\n"); 3098 3099 zpool_dump_ddt(&dds_total, &ddh_total); 3100 3101 dump_dedup_ratio(&dds_total); 3102} 3103 3104static void 3105dump_zpool(spa_t *spa) 3106{ 3107 dsl_pool_t *dp = spa_get_dsl(spa); 3108 int rc = 0; 3109 3110 if (dump_opt['S']) { 3111 dump_simulated_ddt(spa); 3112 return; 3113 } 3114 3115 if (!dump_opt['e'] && dump_opt['C'] > 1) { 3116 (void) printf("\nCached configuration:\n"); 3117 dump_nvlist(spa->spa_config, 8); 3118 } 3119 3120 if (dump_opt['C']) 3121 dump_config(spa); 3122 3123 if (dump_opt['u']) 3124 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 3125 3126 if (dump_opt['D']) 3127 dump_all_ddts(spa); 3128 3129 if (dump_opt['d'] > 2 || dump_opt['m']) 3130 dump_metaslabs(spa); 3131 if (dump_opt['M']) 3132 dump_metaslab_groups(spa); 3133 3134 if (dump_opt['d'] || dump_opt['i']) { 3135 dump_dir(dp->dp_meta_objset); 3136 if (dump_opt['d'] >= 3) { 3137 dump_full_bpobj(&spa->spa_deferred_bpobj, 3138 "Deferred frees", 0); 3139 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 3140 dump_full_bpobj( 3141 &spa->spa_dsl_pool->dp_free_bpobj, 3142 "Pool snapshot frees", 0); 3143 } 3144 3145 if (spa_feature_is_active(spa, 3146 SPA_FEATURE_ASYNC_DESTROY)) { 3147 dump_bptree(spa->spa_meta_objset, 3148 spa->spa_dsl_pool->dp_bptree_obj, 3149 "Pool dataset frees"); 3150 } 3151 dump_dtl(spa->spa_root_vdev, 0); 3152 } 3153 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 3154 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 3155 3156 for (spa_feature_t f = 0; f < SPA_FEATURES; f++) { 3157 uint64_t refcount; 3158 3159 if (!(spa_feature_table[f].fi_flags & 3160 ZFEATURE_FLAG_PER_DATASET)) { 3161 ASSERT0(dataset_feature_count[f]); 3162 continue; 3163 } 3164 (void) feature_get_refcount(spa, 3165 &spa_feature_table[f], &refcount); 3166 if (dataset_feature_count[f] != refcount) { 3167 (void) printf("%s feature refcount mismatch: " 3168 "%lld datasets != %lld refcount\n", 3169 spa_feature_table[f].fi_uname, 3170 (longlong_t)dataset_feature_count[f], 3171 (longlong_t)refcount); 3172 rc = 2; 3173 } else { 3174 (void) printf("Verified %s feature refcount " 3175 "of %llu is correct\n", 3176 spa_feature_table[f].fi_uname, 3177 (longlong_t)refcount); 3178 } 3179 } 3180 } 3181 if (rc == 0 && (dump_opt['b'] || dump_opt['c'])) 3182 rc = dump_block_stats(spa); 3183 3184 if (rc == 0) 3185 rc = verify_spacemap_refcounts(spa); 3186 3187 if (dump_opt['s']) 3188 show_pool_stats(spa); 3189 3190 if (dump_opt['h']) 3191 dump_history(spa); 3192 3193 if (rc != 0) { 3194 dump_debug_buffer(); 3195 exit(rc); 3196 } 3197} 3198 3199#define ZDB_FLAG_CHECKSUM 0x0001 3200#define ZDB_FLAG_DECOMPRESS 0x0002 3201#define ZDB_FLAG_BSWAP 0x0004 3202#define ZDB_FLAG_GBH 0x0008 3203#define ZDB_FLAG_INDIRECT 0x0010 3204#define ZDB_FLAG_PHYS 0x0020 3205#define ZDB_FLAG_RAW 0x0040 3206#define ZDB_FLAG_PRINT_BLKPTR 0x0080 3207 3208int flagbits[256]; 3209 3210static void 3211zdb_print_blkptr(blkptr_t *bp, int flags) 3212{ 3213 char blkbuf[BP_SPRINTF_LEN]; 3214 3215 if (flags & ZDB_FLAG_BSWAP) 3216 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 3217 3218 snprintf_blkptr(blkbuf, sizeof (blkbuf), bp); 3219 (void) printf("%s\n", blkbuf); 3220} 3221 3222static void 3223zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 3224{ 3225 int i; 3226 3227 for (i = 0; i < nbps; i++) 3228 zdb_print_blkptr(&bp[i], flags); 3229} 3230 3231static void 3232zdb_dump_gbh(void *buf, int flags) 3233{ 3234 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 3235} 3236 3237static void 3238zdb_dump_block_raw(void *buf, uint64_t size, int flags) 3239{ 3240 if (flags & ZDB_FLAG_BSWAP) 3241 byteswap_uint64_array(buf, size); 3242 (void) write(1, buf, size); 3243} 3244 3245static void 3246zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 3247{ 3248 uint64_t *d = (uint64_t *)buf; 3249 int nwords = size / sizeof (uint64_t); 3250 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 3251 int i, j; 3252 char *hdr, *c; 3253 3254 3255 if (do_bswap) 3256 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 3257 else 3258 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 3259 3260 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 3261 3262 for (i = 0; i < nwords; i += 2) { 3263 (void) printf("%06llx: %016llx %016llx ", 3264 (u_longlong_t)(i * sizeof (uint64_t)), 3265 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 3266 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 3267 3268 c = (char *)&d[i]; 3269 for (j = 0; j < 2 * sizeof (uint64_t); j++) 3270 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 3271 (void) printf("\n"); 3272 } 3273} 3274 3275/* 3276 * There are two acceptable formats: 3277 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 3278 * child[.child]* - For example: 0.1.1 3279 * 3280 * The second form can be used to specify arbitrary vdevs anywhere 3281 * in the heirarchy. For example, in a pool with a mirror of 3282 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 3283 */ 3284static vdev_t * 3285zdb_vdev_lookup(vdev_t *vdev, char *path) 3286{ 3287 char *s, *p, *q; 3288 int i; 3289 3290 if (vdev == NULL) 3291 return (NULL); 3292 3293 /* First, assume the x.x.x.x format */ 3294 i = (int)strtoul(path, &s, 10); 3295 if (s == path || (s && *s != '.' && *s != '\0')) 3296 goto name; 3297 if (i < 0 || i >= vdev->vdev_children) 3298 return (NULL); 3299 3300 vdev = vdev->vdev_child[i]; 3301 if (*s == '\0') 3302 return (vdev); 3303 return (zdb_vdev_lookup(vdev, s+1)); 3304 3305name: 3306 for (i = 0; i < vdev->vdev_children; i++) { 3307 vdev_t *vc = vdev->vdev_child[i]; 3308 3309 if (vc->vdev_path == NULL) { 3310 vc = zdb_vdev_lookup(vc, path); 3311 if (vc == NULL) 3312 continue; 3313 else 3314 return (vc); 3315 } 3316 3317 p = strrchr(vc->vdev_path, '/'); 3318 p = p ? p + 1 : vc->vdev_path; 3319 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 3320 3321 if (strcmp(vc->vdev_path, path) == 0) 3322 return (vc); 3323 if (strcmp(p, path) == 0) 3324 return (vc); 3325 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 3326 return (vc); 3327 } 3328 3329 return (NULL); 3330} 3331 3332/* 3333 * Read a block from a pool and print it out. The syntax of the 3334 * block descriptor is: 3335 * 3336 * pool:vdev_specifier:offset:size[:flags] 3337 * 3338 * pool - The name of the pool you wish to read from 3339 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 3340 * offset - offset, in hex, in bytes 3341 * size - Amount of data to read, in hex, in bytes 3342 * flags - A string of characters specifying options 3343 * b: Decode a blkptr at given offset within block 3344 * *c: Calculate and display checksums 3345 * d: Decompress data before dumping 3346 * e: Byteswap data before dumping 3347 * g: Display data as a gang block header 3348 * i: Display as an indirect block 3349 * p: Do I/O to physical offset 3350 * r: Dump raw data to stdout 3351 * 3352 * * = not yet implemented 3353 */ 3354static void 3355zdb_read_block(char *thing, spa_t *spa) 3356{ 3357 blkptr_t blk, *bp = &blk; 3358 dva_t *dva = bp->blk_dva; 3359 int flags = 0; 3360 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 3361 zio_t *zio; 3362 vdev_t *vd; 3363 void *pbuf, *lbuf, *buf; 3364 char *s, *p, *dup, *vdev, *flagstr; 3365 int i, error; 3366 3367 dup = strdup(thing); 3368 s = strtok(dup, ":"); 3369 vdev = s ? s : ""; 3370 s = strtok(NULL, ":"); 3371 offset = strtoull(s ? s : "", NULL, 16); 3372 s = strtok(NULL, ":"); 3373 size = strtoull(s ? s : "", NULL, 16); 3374 s = strtok(NULL, ":"); 3375 flagstr = s ? s : ""; 3376 3377 s = NULL; 3378 if (size == 0) 3379 s = "size must not be zero"; 3380 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3381 s = "size must be a multiple of sector size"; 3382 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3383 s = "offset must be a multiple of sector size"; 3384 if (s) { 3385 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3386 free(dup); 3387 return; 3388 } 3389 3390 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3391 for (i = 0; flagstr[i]; i++) { 3392 int bit = flagbits[(uchar_t)flagstr[i]]; 3393 3394 if (bit == 0) { 3395 (void) printf("***Invalid flag: %c\n", 3396 flagstr[i]); 3397 continue; 3398 } 3399 flags |= bit; 3400 3401 /* If it's not something with an argument, keep going */ 3402 if ((bit & (ZDB_FLAG_CHECKSUM | 3403 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3404 continue; 3405 3406 p = &flagstr[i + 1]; 3407 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3408 blkptr_offset = strtoull(p, &p, 16); 3409 if (*p != ':' && *p != '\0') { 3410 (void) printf("***Invalid flag arg: '%s'\n", s); 3411 free(dup); 3412 return; 3413 } 3414 i += p - &flagstr[i + 1]; /* skip over the number */ 3415 } 3416 } 3417 3418 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3419 if (vd == NULL) { 3420 (void) printf("***Invalid vdev: %s\n", vdev); 3421 free(dup); 3422 return; 3423 } else { 3424 if (vd->vdev_path) 3425 (void) fprintf(stderr, "Found vdev: %s\n", 3426 vd->vdev_path); 3427 else 3428 (void) fprintf(stderr, "Found vdev type: %s\n", 3429 vd->vdev_ops->vdev_op_type); 3430 } 3431 3432 psize = size; 3433 lsize = size; 3434 3435 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3436 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3437 3438 BP_ZERO(bp); 3439 3440 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3441 DVA_SET_OFFSET(&dva[0], offset); 3442 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3443 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3444 3445 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3446 3447 BP_SET_LSIZE(bp, lsize); 3448 BP_SET_PSIZE(bp, psize); 3449 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3450 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3451 BP_SET_TYPE(bp, DMU_OT_NONE); 3452 BP_SET_LEVEL(bp, 0); 3453 BP_SET_DEDUP(bp, 0); 3454 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3455 3456 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3457 zio = zio_root(spa, NULL, NULL, 0); 3458 3459 if (vd == vd->vdev_top) { 3460 /* 3461 * Treat this as a normal block read. 3462 */ 3463 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3464 ZIO_PRIORITY_SYNC_READ, 3465 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3466 } else { 3467 /* 3468 * Treat this as a vdev child I/O. 3469 */ 3470 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3471 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3472 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3473 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3474 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3475 } 3476 3477 error = zio_wait(zio); 3478 spa_config_exit(spa, SCL_STATE, FTAG); 3479 3480 if (error) { 3481 (void) printf("Read of %s failed, error: %d\n", thing, error); 3482 goto out; 3483 } 3484 3485 if (flags & ZDB_FLAG_DECOMPRESS) { 3486 /* 3487 * We don't know how the data was compressed, so just try 3488 * every decompress function at every inflated blocksize. 3489 */ 3490 enum zio_compress c; 3491 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3492 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3493 3494 bcopy(pbuf, pbuf2, psize); 3495 3496 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3497 SPA_MAXBLOCKSIZE - psize) == 0); 3498 3499 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3500 SPA_MAXBLOCKSIZE - psize) == 0); 3501 3502 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3503 lsize -= SPA_MINBLOCKSIZE) { 3504 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3505 if (zio_decompress_data(c, pbuf, lbuf, 3506 psize, lsize) == 0 && 3507 zio_decompress_data(c, pbuf2, lbuf2, 3508 psize, lsize) == 0 && 3509 bcmp(lbuf, lbuf2, lsize) == 0) 3510 break; 3511 } 3512 if (c != ZIO_COMPRESS_FUNCTIONS) 3513 break; 3514 lsize -= SPA_MINBLOCKSIZE; 3515 } 3516 3517 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3518 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3519 3520 if (lsize <= psize) { 3521 (void) printf("Decompress of %s failed\n", thing); 3522 goto out; 3523 } 3524 buf = lbuf; 3525 size = lsize; 3526 } else { 3527 buf = pbuf; 3528 size = psize; 3529 } 3530 3531 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3532 zdb_print_blkptr((blkptr_t *)(void *) 3533 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3534 else if (flags & ZDB_FLAG_RAW) 3535 zdb_dump_block_raw(buf, size, flags); 3536 else if (flags & ZDB_FLAG_INDIRECT) 3537 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3538 flags); 3539 else if (flags & ZDB_FLAG_GBH) 3540 zdb_dump_gbh(buf, flags); 3541 else 3542 zdb_dump_block(thing, buf, size, flags); 3543 3544out: 3545 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3546 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3547 free(dup); 3548} 3549 3550static boolean_t 3551pool_match(nvlist_t *cfg, char *tgt) 3552{ 3553 uint64_t v, guid = strtoull(tgt, NULL, 0); 3554 char *s; 3555 3556 if (guid != 0) { 3557 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3558 return (v == guid); 3559 } else { 3560 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3561 return (strcmp(s, tgt) == 0); 3562 } 3563 return (B_FALSE); 3564} 3565 3566static char * 3567find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3568{ 3569 nvlist_t *pools; 3570 nvlist_t *match = NULL; 3571 char *name = NULL; 3572 char *sepp = NULL; 3573 char sep = '\0'; 3574 int count = 0; 3575 importargs_t args = { 0 }; 3576 3577 args.paths = dirc; 3578 args.path = dirv; 3579 args.can_be_active = B_TRUE; 3580 3581 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3582 sep = *sepp; 3583 *sepp = '\0'; 3584 } 3585 3586 pools = zpool_search_import(g_zfs, &args); 3587 3588 if (pools != NULL) { 3589 nvpair_t *elem = NULL; 3590 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3591 verify(nvpair_value_nvlist(elem, configp) == 0); 3592 if (pool_match(*configp, *target)) { 3593 count++; 3594 if (match != NULL) { 3595 /* print previously found config */ 3596 if (name != NULL) { 3597 (void) printf("%s\n", name); 3598 dump_nvlist(match, 8); 3599 name = NULL; 3600 } 3601 (void) printf("%s\n", 3602 nvpair_name(elem)); 3603 dump_nvlist(*configp, 8); 3604 } else { 3605 match = *configp; 3606 name = nvpair_name(elem); 3607 } 3608 } 3609 } 3610 } 3611 if (count > 1) 3612 (void) fatal("\tMatched %d pools - use pool GUID " 3613 "instead of pool name or \n" 3614 "\tpool name part of a dataset name to select pool", count); 3615 3616 if (sepp) 3617 *sepp = sep; 3618 /* 3619 * If pool GUID was specified for pool id, replace it with pool name 3620 */ 3621 if (name && (strstr(*target, name) != *target)) { 3622 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3623 3624 *target = umem_alloc(sz, UMEM_NOFAIL); 3625 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3626 } 3627 3628 *configp = name ? match : NULL; 3629 3630 return (name); 3631} 3632 3633int 3634main(int argc, char **argv) 3635{ 3636 int i, c; 3637 struct rlimit rl = { 1024, 1024 }; 3638 spa_t *spa = NULL; 3639 objset_t *os = NULL; 3640 int dump_all = 1; 3641 int verbose = 0; 3642 int error = 0; 3643 char **searchdirs = NULL; 3644 int nsearch = 0; 3645 char *target; 3646 nvlist_t *policy = NULL; 3647 uint64_t max_txg = UINT64_MAX; 3648 int rewind = ZPOOL_NEVER_REWIND; 3649 char *spa_config_path_env; 3650 boolean_t target_is_spa = B_TRUE; 3651 3652 (void) setrlimit(RLIMIT_NOFILE, &rl); 3653 (void) enable_extended_FILE_stdio(-1, -1); 3654 3655 dprintf_setup(&argc, argv); 3656 3657 /* 3658 * If there is an environment variable SPA_CONFIG_PATH it overrides 3659 * default spa_config_path setting. If -U flag is specified it will 3660 * override this environment variable settings once again. 3661 */ 3662 spa_config_path_env = getenv("SPA_CONFIG_PATH"); 3663 if (spa_config_path_env != NULL) 3664 spa_config_path = spa_config_path_env; 3665 3666 while ((c = getopt(argc, argv, 3667 "bcdhilmMI:suCDRSAFLXx:evp:t:U:PGo:q")) != -1) { 3668 switch (c) { 3669 case 'b': 3670 case 'c': 3671 case 'd': 3672 case 'h': 3673 case 'i': 3674 case 'l': 3675 case 'm': 3676 case 's': 3677 case 'u': 3678 case 'C': 3679 case 'D': 3680 case 'M': 3681 case 'R': 3682 case 'S': 3683 case 'G': 3684 dump_opt[c]++; 3685 dump_all = 0; 3686 break; 3687 case 'A': 3688 case 'F': 3689 case 'L': 3690 case 'X': 3691 case 'e': 3692 case 'P': 3693 case 'q': 3694 dump_opt[c]++; 3695 break; 3696 case 'I': 3697 max_inflight = strtoull(optarg, NULL, 0); 3698 if (max_inflight == 0) { 3699 (void) fprintf(stderr, "maximum number " 3700 "of inflight I/Os must be greater " 3701 "than 0\n"); 3702 usage(); 3703 } 3704 break; 3705 case 'p': 3706 if (searchdirs == NULL) { 3707 searchdirs = umem_alloc(sizeof (char *), 3708 UMEM_NOFAIL); 3709 } else { 3710 char **tmp = umem_alloc((nsearch + 1) * 3711 sizeof (char *), UMEM_NOFAIL); 3712 bcopy(searchdirs, tmp, nsearch * 3713 sizeof (char *)); 3714 umem_free(searchdirs, 3715 nsearch * sizeof (char *)); 3716 searchdirs = tmp; 3717 } 3718 searchdirs[nsearch++] = optarg; 3719 break; 3720 case 't': 3721 max_txg = strtoull(optarg, NULL, 0); 3722 if (max_txg < TXG_INITIAL) { 3723 (void) fprintf(stderr, "incorrect txg " 3724 "specified: %s\n", optarg); 3725 usage(); 3726 } 3727 break; 3728 case 'U': 3729 spa_config_path = optarg; 3730 break; 3731 case 'v': 3732 verbose++; 3733 break; 3734 case 'x': 3735 vn_dumpdir = optarg; 3736 break; 3737 case 'o': 3738 error = set_global_var(optarg); 3739 if (error != 0) 3740 usage(); 3741 break; 3742 default: 3743 usage(); 3744 break; 3745 } 3746 } 3747 3748 if (!dump_opt['e'] && searchdirs != NULL) { 3749 (void) fprintf(stderr, "-p option requires use of -e\n"); 3750 usage(); 3751 } 3752 3753 /* 3754 * ZDB does not typically re-read blocks; therefore limit the ARC 3755 * to 256 MB, which can be used entirely for metadata. 3756 */ 3757 zfs_arc_max = zfs_arc_meta_limit = 256 * 1024 * 1024; 3758 3759 /* 3760 * "zdb -c" uses checksum-verifying scrub i/os which are async reads. 3761 * "zdb -b" uses traversal prefetch which uses async reads. 3762 * For good performance, let several of them be active at once. 3763 */ 3764 zfs_vdev_async_read_max_active = 10; 3765 3766 kernel_init(FREAD); 3767 g_zfs = libzfs_init(); 3768 if (g_zfs == NULL) 3769 fatal("Fail to initialize zfs"); 3770 3771 if (dump_all) 3772 verbose = MAX(verbose, 1); 3773 3774 for (c = 0; c < 256; c++) { 3775 if (dump_all && !strchr("elAFLRSXP", c)) 3776 dump_opt[c] = 1; 3777 if (dump_opt[c]) 3778 dump_opt[c] += verbose; 3779 } 3780 3781 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3782 zfs_recover = (dump_opt['A'] > 1); 3783 3784 argc -= optind; 3785 argv += optind; 3786 3787 if (argc < 2 && dump_opt['R']) 3788 usage(); 3789 if (argc < 1) { 3790 if (!dump_opt['e'] && dump_opt['C']) { 3791 dump_cachefile(spa_config_path); 3792 return (0); 3793 } 3794 usage(); 3795 } 3796 3797 if (dump_opt['l']) 3798 return (dump_label(argv[0])); 3799 3800 if (dump_opt['X'] || dump_opt['F']) 3801 rewind = ZPOOL_DO_REWIND | 3802 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3803 3804 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3805 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3806 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3807 fatal("internal error: %s", strerror(ENOMEM)); 3808 3809 error = 0; 3810 target = argv[0]; 3811 3812 if (dump_opt['e']) { 3813 nvlist_t *cfg = NULL; 3814 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3815 3816 error = ENOENT; 3817 if (name) { 3818 if (dump_opt['C'] > 1) { 3819 (void) printf("\nConfiguration for import:\n"); 3820 dump_nvlist(cfg, 8); 3821 } 3822 if (nvlist_add_nvlist(cfg, 3823 ZPOOL_REWIND_POLICY, policy) != 0) { 3824 fatal("can't open '%s': %s", 3825 target, strerror(ENOMEM)); 3826 } 3827 if ((error = spa_import(name, cfg, NULL, 3828 ZFS_IMPORT_MISSING_LOG)) != 0) { 3829 error = spa_import(name, cfg, NULL, 3830 ZFS_IMPORT_VERBATIM); 3831 } 3832 } 3833 } 3834 3835 if (strpbrk(target, "/@") != NULL) { 3836 size_t targetlen; 3837 3838 target_is_spa = B_FALSE; 3839 /* 3840 * Remove any trailing slash. Later code would get confused 3841 * by it, but we want to allow it so that "pool/" can 3842 * indicate that we want to dump the topmost filesystem, 3843 * rather than the whole pool. 3844 */ 3845 targetlen = strlen(target); 3846 if (targetlen != 0 && target[targetlen - 1] == '/') 3847 target[targetlen - 1] = '\0'; 3848 } 3849 3850 if (error == 0) { 3851 if (target_is_spa || dump_opt['R']) { 3852 error = spa_open_rewind(target, &spa, FTAG, policy, 3853 NULL); 3854 if (error) { 3855 /* 3856 * If we're missing the log device then 3857 * try opening the pool after clearing the 3858 * log state. 3859 */ 3860 mutex_enter(&spa_namespace_lock); 3861 if ((spa = spa_lookup(target)) != NULL && 3862 spa->spa_log_state == SPA_LOG_MISSING) { 3863 spa->spa_log_state = SPA_LOG_CLEAR; 3864 error = 0; 3865 } 3866 mutex_exit(&spa_namespace_lock); 3867 3868 if (!error) { 3869 error = spa_open_rewind(target, &spa, 3870 FTAG, policy, NULL); 3871 } 3872 } 3873 } else { 3874 error = dmu_objset_own(target, DMU_OST_ANY, 3875 B_TRUE, FTAG, &os); 3876 } 3877 } 3878 nvlist_free(policy); 3879 3880 if (error) 3881 fatal("can't open '%s': %s", target, strerror(error)); 3882 3883 argv++; 3884 argc--; 3885 if (!dump_opt['R']) { 3886 if (argc > 0) { 3887 zopt_objects = argc; 3888 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3889 for (i = 0; i < zopt_objects; i++) { 3890 errno = 0; 3891 zopt_object[i] = strtoull(argv[i], NULL, 0); 3892 if (zopt_object[i] == 0 && errno != 0) 3893 fatal("bad number %s: %s", 3894 argv[i], strerror(errno)); 3895 } 3896 } 3897 if (os != NULL) { 3898 dump_dir(os); 3899 } else if (zopt_objects > 0 && !dump_opt['m']) { 3900 dump_dir(spa->spa_meta_objset); 3901 } else { 3902 dump_zpool(spa); 3903 } 3904 } else { 3905 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3906 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3907 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3908 flagbits['e'] = ZDB_FLAG_BSWAP; 3909 flagbits['g'] = ZDB_FLAG_GBH; 3910 flagbits['i'] = ZDB_FLAG_INDIRECT; 3911 flagbits['p'] = ZDB_FLAG_PHYS; 3912 flagbits['r'] = ZDB_FLAG_RAW; 3913 3914 for (i = 0; i < argc; i++) 3915 zdb_read_block(argv[i], spa); 3916 } 3917 3918 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3919 3920 fuid_table_destroy(); 3921 sa_loaded = B_FALSE; 3922 3923 dump_debug_buffer(); 3924 3925 libzfs_fini(g_zfs); 3926 kernel_fini(); 3927 3928 return (0); 3929} 3930