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