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