1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2013 by Delphix. All rights reserved. 25 */ 26 27 #include <stdio.h> 28 #include <unistd.h> 29 #include <stdio_ext.h> 30 #include <stdlib.h> 31 #include <ctype.h> 32 #include <sys/zfs_context.h> 33 #include <sys/spa.h> 34 #include <sys/spa_impl.h> 35 #include <sys/dmu.h> 36 #include <sys/zap.h> 37 #include <sys/fs/zfs.h> 38 #include <sys/zfs_znode.h> 39 #include <sys/zfs_sa.h> 40 #include <sys/sa.h> 41 #include <sys/sa_impl.h> 42 #include <sys/vdev.h> 43 #include <sys/vdev_impl.h> 44 #include <sys/metaslab_impl.h> 45 #include <sys/dmu_objset.h> 46 #include <sys/dsl_dir.h> 47 #include <sys/dsl_dataset.h> 48 #include <sys/dsl_pool.h> 49 #include <sys/dbuf.h> 50 #include <sys/zil.h> 51 #include <sys/zil_impl.h> 52 #include <sys/stat.h> 53 #include <sys/resource.h> 54 #include <sys/dmu_traverse.h> 55 #include <sys/zio_checksum.h> 56 #include <sys/zio_compress.h> 57 #include <sys/zfs_fuid.h> 58 #include <sys/arc.h> 59 #include <sys/ddt.h> 60 #include <sys/zfeature.h> 61 #include <zfs_comutil.h> 62 #undef ZFS_MAXNAMELEN 63 #undef verify 64 #include <libzfs.h> 65 66 #define ZDB_COMPRESS_NAME(idx) ((idx) < ZIO_COMPRESS_FUNCTIONS ? \ 67 zio_compress_table[(idx)].ci_name : "UNKNOWN") 68 #define ZDB_CHECKSUM_NAME(idx) ((idx) < ZIO_CHECKSUM_FUNCTIONS ? \ 69 zio_checksum_table[(idx)].ci_name : "UNKNOWN") 70 #define ZDB_OT_NAME(idx) ((idx) < DMU_OT_NUMTYPES ? \ 71 dmu_ot[(idx)].ot_name : DMU_OT_IS_VALID(idx) ? \ 72 dmu_ot_byteswap[DMU_OT_BYTESWAP(idx)].ob_name : "UNKNOWN") 73 #define ZDB_OT_TYPE(idx) ((idx) < DMU_OT_NUMTYPES ? (idx) : \ 74 (((idx) == DMU_OTN_ZAP_DATA || (idx) == DMU_OTN_ZAP_METADATA) ? \ 75 DMU_OT_ZAP_OTHER : DMU_OT_NUMTYPES)) 76 77 #ifndef lint 78 extern int zfs_recover; 79 #else 80 int 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 sprintf_blkptr(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 sprintf_blkptr_compact(char *blkbuf, 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 sprintf_blkptr(blkbuf, bp); 1032 return; 1033 } 1034 1035 blkbuf[0] = '\0'; 1036 1037 for (int i = 0; i < ndvas; i++) 1038 (void) sprintf(blkbuf + strlen(blkbuf), "%llu:%llx:%llx ", 1039 (u_longlong_t)DVA_GET_VDEV(&dva[i]), 1040 (u_longlong_t)DVA_GET_OFFSET(&dva[i]), 1041 (u_longlong_t)DVA_GET_ASIZE(&dva[i])); 1042 1043 (void) sprintf(blkbuf + strlen(blkbuf), 1044 "%llxL/%llxP F=%llu B=%llu/%llu", 1045 (u_longlong_t)BP_GET_LSIZE(bp), 1046 (u_longlong_t)BP_GET_PSIZE(bp), 1047 (u_longlong_t)bp->blk_fill, 1048 (u_longlong_t)bp->blk_birth, 1049 (u_longlong_t)BP_PHYSICAL_BIRTH(bp)); 1050 } 1051 1052 static void 1053 print_indirect(blkptr_t *bp, const zbookmark_t *zb, 1054 const dnode_phys_t *dnp) 1055 { 1056 char blkbuf[BP_SPRINTF_LEN]; 1057 int l; 1058 1059 ASSERT3U(BP_GET_TYPE(bp), ==, dnp->dn_type); 1060 ASSERT3U(BP_GET_LEVEL(bp), ==, zb->zb_level); 1061 1062 (void) printf("%16llx ", (u_longlong_t)blkid2offset(dnp, bp, zb)); 1063 1064 ASSERT(zb->zb_level >= 0); 1065 1066 for (l = dnp->dn_nlevels - 1; l >= -1; l--) { 1067 if (l == zb->zb_level) { 1068 (void) printf("L%llx", (u_longlong_t)zb->zb_level); 1069 } else { 1070 (void) printf(" "); 1071 } 1072 } 1073 1074 sprintf_blkptr_compact(blkbuf, bp); 1075 (void) printf("%s\n", blkbuf); 1076 } 1077 1078 static int 1079 visit_indirect(spa_t *spa, const dnode_phys_t *dnp, 1080 blkptr_t *bp, const zbookmark_t *zb) 1081 { 1082 int err = 0; 1083 1084 if (bp->blk_birth == 0) 1085 return (0); 1086 1087 print_indirect(bp, zb, dnp); 1088 1089 if (BP_GET_LEVEL(bp) > 0) { 1090 uint32_t flags = ARC_WAIT; 1091 int i; 1092 blkptr_t *cbp; 1093 int epb = BP_GET_LSIZE(bp) >> SPA_BLKPTRSHIFT; 1094 arc_buf_t *buf; 1095 uint64_t fill = 0; 1096 1097 err = arc_read(NULL, spa, bp, arc_getbuf_func, &buf, 1098 ZIO_PRIORITY_ASYNC_READ, ZIO_FLAG_CANFAIL, &flags, zb); 1099 if (err) 1100 return (err); 1101 ASSERT(buf->b_data); 1102 1103 /* recursively visit blocks below this */ 1104 cbp = buf->b_data; 1105 for (i = 0; i < epb; i++, cbp++) { 1106 zbookmark_t czb; 1107 1108 SET_BOOKMARK(&czb, zb->zb_objset, zb->zb_object, 1109 zb->zb_level - 1, 1110 zb->zb_blkid * epb + i); 1111 err = visit_indirect(spa, dnp, cbp, &czb); 1112 if (err) 1113 break; 1114 fill += cbp->blk_fill; 1115 } 1116 if (!err) 1117 ASSERT3U(fill, ==, bp->blk_fill); 1118 (void) arc_buf_remove_ref(buf, &buf); 1119 } 1120 1121 return (err); 1122 } 1123 1124 /*ARGSUSED*/ 1125 static void 1126 dump_indirect(dnode_t *dn) 1127 { 1128 dnode_phys_t *dnp = dn->dn_phys; 1129 int j; 1130 zbookmark_t czb; 1131 1132 (void) printf("Indirect blocks:\n"); 1133 1134 SET_BOOKMARK(&czb, dmu_objset_id(dn->dn_objset), 1135 dn->dn_object, dnp->dn_nlevels - 1, 0); 1136 for (j = 0; j < dnp->dn_nblkptr; j++) { 1137 czb.zb_blkid = j; 1138 (void) visit_indirect(dmu_objset_spa(dn->dn_objset), dnp, 1139 &dnp->dn_blkptr[j], &czb); 1140 } 1141 1142 (void) printf("\n"); 1143 } 1144 1145 /*ARGSUSED*/ 1146 static void 1147 dump_dsl_dir(objset_t *os, uint64_t object, void *data, size_t size) 1148 { 1149 dsl_dir_phys_t *dd = data; 1150 time_t crtime; 1151 char nice[32]; 1152 1153 if (dd == NULL) 1154 return; 1155 1156 ASSERT3U(size, >=, sizeof (dsl_dir_phys_t)); 1157 1158 crtime = dd->dd_creation_time; 1159 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1160 (void) printf("\t\thead_dataset_obj = %llu\n", 1161 (u_longlong_t)dd->dd_head_dataset_obj); 1162 (void) printf("\t\tparent_dir_obj = %llu\n", 1163 (u_longlong_t)dd->dd_parent_obj); 1164 (void) printf("\t\torigin_obj = %llu\n", 1165 (u_longlong_t)dd->dd_origin_obj); 1166 (void) printf("\t\tchild_dir_zapobj = %llu\n", 1167 (u_longlong_t)dd->dd_child_dir_zapobj); 1168 zdb_nicenum(dd->dd_used_bytes, nice); 1169 (void) printf("\t\tused_bytes = %s\n", nice); 1170 zdb_nicenum(dd->dd_compressed_bytes, nice); 1171 (void) printf("\t\tcompressed_bytes = %s\n", nice); 1172 zdb_nicenum(dd->dd_uncompressed_bytes, nice); 1173 (void) printf("\t\tuncompressed_bytes = %s\n", nice); 1174 zdb_nicenum(dd->dd_quota, nice); 1175 (void) printf("\t\tquota = %s\n", nice); 1176 zdb_nicenum(dd->dd_reserved, nice); 1177 (void) printf("\t\treserved = %s\n", nice); 1178 (void) printf("\t\tprops_zapobj = %llu\n", 1179 (u_longlong_t)dd->dd_props_zapobj); 1180 (void) printf("\t\tdeleg_zapobj = %llu\n", 1181 (u_longlong_t)dd->dd_deleg_zapobj); 1182 (void) printf("\t\tflags = %llx\n", 1183 (u_longlong_t)dd->dd_flags); 1184 1185 #define DO(which) \ 1186 zdb_nicenum(dd->dd_used_breakdown[DD_USED_ ## which], nice); \ 1187 (void) printf("\t\tused_breakdown[" #which "] = %s\n", nice) 1188 DO(HEAD); 1189 DO(SNAP); 1190 DO(CHILD); 1191 DO(CHILD_RSRV); 1192 DO(REFRSRV); 1193 #undef DO 1194 } 1195 1196 /*ARGSUSED*/ 1197 static void 1198 dump_dsl_dataset(objset_t *os, uint64_t object, void *data, size_t size) 1199 { 1200 dsl_dataset_phys_t *ds = data; 1201 time_t crtime; 1202 char used[32], compressed[32], uncompressed[32], unique[32]; 1203 char blkbuf[BP_SPRINTF_LEN]; 1204 1205 if (ds == NULL) 1206 return; 1207 1208 ASSERT(size == sizeof (*ds)); 1209 crtime = ds->ds_creation_time; 1210 zdb_nicenum(ds->ds_referenced_bytes, used); 1211 zdb_nicenum(ds->ds_compressed_bytes, compressed); 1212 zdb_nicenum(ds->ds_uncompressed_bytes, uncompressed); 1213 zdb_nicenum(ds->ds_unique_bytes, unique); 1214 sprintf_blkptr(blkbuf, &ds->ds_bp); 1215 1216 (void) printf("\t\tdir_obj = %llu\n", 1217 (u_longlong_t)ds->ds_dir_obj); 1218 (void) printf("\t\tprev_snap_obj = %llu\n", 1219 (u_longlong_t)ds->ds_prev_snap_obj); 1220 (void) printf("\t\tprev_snap_txg = %llu\n", 1221 (u_longlong_t)ds->ds_prev_snap_txg); 1222 (void) printf("\t\tnext_snap_obj = %llu\n", 1223 (u_longlong_t)ds->ds_next_snap_obj); 1224 (void) printf("\t\tsnapnames_zapobj = %llu\n", 1225 (u_longlong_t)ds->ds_snapnames_zapobj); 1226 (void) printf("\t\tnum_children = %llu\n", 1227 (u_longlong_t)ds->ds_num_children); 1228 (void) printf("\t\tuserrefs_obj = %llu\n", 1229 (u_longlong_t)ds->ds_userrefs_obj); 1230 (void) printf("\t\tcreation_time = %s", ctime(&crtime)); 1231 (void) printf("\t\tcreation_txg = %llu\n", 1232 (u_longlong_t)ds->ds_creation_txg); 1233 (void) printf("\t\tdeadlist_obj = %llu\n", 1234 (u_longlong_t)ds->ds_deadlist_obj); 1235 (void) printf("\t\tused_bytes = %s\n", used); 1236 (void) printf("\t\tcompressed_bytes = %s\n", compressed); 1237 (void) printf("\t\tuncompressed_bytes = %s\n", uncompressed); 1238 (void) printf("\t\tunique = %s\n", unique); 1239 (void) printf("\t\tfsid_guid = %llu\n", 1240 (u_longlong_t)ds->ds_fsid_guid); 1241 (void) printf("\t\tguid = %llu\n", 1242 (u_longlong_t)ds->ds_guid); 1243 (void) printf("\t\tflags = %llx\n", 1244 (u_longlong_t)ds->ds_flags); 1245 (void) printf("\t\tnext_clones_obj = %llu\n", 1246 (u_longlong_t)ds->ds_next_clones_obj); 1247 (void) printf("\t\tprops_obj = %llu\n", 1248 (u_longlong_t)ds->ds_props_obj); 1249 (void) printf("\t\tbp = %s\n", blkbuf); 1250 } 1251 1252 /* ARGSUSED */ 1253 static int 1254 dump_bptree_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1255 { 1256 char blkbuf[BP_SPRINTF_LEN]; 1257 1258 if (bp->blk_birth != 0) { 1259 sprintf_blkptr(blkbuf, bp); 1260 (void) printf("\t%s\n", blkbuf); 1261 } 1262 return (0); 1263 } 1264 1265 static void 1266 dump_bptree(objset_t *os, uint64_t obj, char *name) 1267 { 1268 char bytes[32]; 1269 bptree_phys_t *bt; 1270 dmu_buf_t *db; 1271 1272 if (dump_opt['d'] < 3) 1273 return; 1274 1275 VERIFY3U(0, ==, dmu_bonus_hold(os, obj, FTAG, &db)); 1276 bt = db->db_data; 1277 zdb_nicenum(bt->bt_bytes, bytes); 1278 (void) printf("\n %s: %llu datasets, %s\n", 1279 name, (unsigned long long)(bt->bt_end - bt->bt_begin), bytes); 1280 dmu_buf_rele(db, FTAG); 1281 1282 if (dump_opt['d'] < 5) 1283 return; 1284 1285 (void) printf("\n"); 1286 1287 (void) bptree_iterate(os, obj, B_FALSE, dump_bptree_cb, NULL, NULL); 1288 } 1289 1290 /* ARGSUSED */ 1291 static int 1292 dump_bpobj_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 1293 { 1294 char blkbuf[BP_SPRINTF_LEN]; 1295 1296 ASSERT(bp->blk_birth != 0); 1297 sprintf_blkptr_compact(blkbuf, bp); 1298 (void) printf("\t%s\n", blkbuf); 1299 return (0); 1300 } 1301 1302 static void 1303 dump_bpobj(bpobj_t *bpo, char *name, int indent) 1304 { 1305 char bytes[32]; 1306 char comp[32]; 1307 char uncomp[32]; 1308 1309 if (dump_opt['d'] < 3) 1310 return; 1311 1312 zdb_nicenum(bpo->bpo_phys->bpo_bytes, bytes); 1313 if (bpo->bpo_havesubobj && bpo->bpo_phys->bpo_subobjs != 0) { 1314 zdb_nicenum(bpo->bpo_phys->bpo_comp, comp); 1315 zdb_nicenum(bpo->bpo_phys->bpo_uncomp, uncomp); 1316 (void) printf(" %*s: object %llu, %llu local blkptrs, " 1317 "%llu subobjs, %s (%s/%s comp)\n", 1318 indent * 8, name, 1319 (u_longlong_t)bpo->bpo_object, 1320 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1321 (u_longlong_t)bpo->bpo_phys->bpo_num_subobjs, 1322 bytes, comp, uncomp); 1323 1324 for (uint64_t i = 0; i < bpo->bpo_phys->bpo_num_subobjs; i++) { 1325 uint64_t subobj; 1326 bpobj_t subbpo; 1327 int error; 1328 VERIFY0(dmu_read(bpo->bpo_os, 1329 bpo->bpo_phys->bpo_subobjs, 1330 i * sizeof (subobj), sizeof (subobj), &subobj, 0)); 1331 error = bpobj_open(&subbpo, bpo->bpo_os, subobj); 1332 if (error != 0) { 1333 (void) printf("ERROR %u while trying to open " 1334 "subobj id %llu\n", 1335 error, (u_longlong_t)subobj); 1336 continue; 1337 } 1338 dump_bpobj(&subbpo, "subobj", indent + 1); 1339 bpobj_close(&subbpo); 1340 } 1341 } else { 1342 (void) printf(" %*s: object %llu, %llu blkptrs, %s\n", 1343 indent * 8, name, 1344 (u_longlong_t)bpo->bpo_object, 1345 (u_longlong_t)bpo->bpo_phys->bpo_num_blkptrs, 1346 bytes); 1347 } 1348 1349 if (dump_opt['d'] < 5) 1350 return; 1351 1352 1353 if (indent == 0) { 1354 (void) bpobj_iterate_nofree(bpo, dump_bpobj_cb, NULL, NULL); 1355 (void) printf("\n"); 1356 } 1357 } 1358 1359 static void 1360 dump_deadlist(dsl_deadlist_t *dl) 1361 { 1362 dsl_deadlist_entry_t *dle; 1363 uint64_t unused; 1364 char bytes[32]; 1365 char comp[32]; 1366 char uncomp[32]; 1367 1368 if (dump_opt['d'] < 3) 1369 return; 1370 1371 zdb_nicenum(dl->dl_phys->dl_used, bytes); 1372 zdb_nicenum(dl->dl_phys->dl_comp, comp); 1373 zdb_nicenum(dl->dl_phys->dl_uncomp, uncomp); 1374 (void) printf("\n Deadlist: %s (%s/%s comp)\n", 1375 bytes, comp, uncomp); 1376 1377 if (dump_opt['d'] < 4) 1378 return; 1379 1380 (void) printf("\n"); 1381 1382 /* force the tree to be loaded */ 1383 dsl_deadlist_space_range(dl, 0, UINT64_MAX, &unused, &unused, &unused); 1384 1385 for (dle = avl_first(&dl->dl_tree); dle; 1386 dle = AVL_NEXT(&dl->dl_tree, dle)) { 1387 if (dump_opt['d'] >= 5) { 1388 char buf[128]; 1389 (void) snprintf(buf, sizeof (buf), "mintxg %llu -> ", 1390 (longlong_t)dle->dle_mintxg, 1391 (longlong_t)dle->dle_bpobj.bpo_object); 1392 1393 dump_bpobj(&dle->dle_bpobj, buf, 0); 1394 } else { 1395 (void) printf("mintxg %llu -> obj %llu\n", 1396 (longlong_t)dle->dle_mintxg, 1397 (longlong_t)dle->dle_bpobj.bpo_object); 1398 1399 } 1400 } 1401 } 1402 1403 static avl_tree_t idx_tree; 1404 static avl_tree_t domain_tree; 1405 static boolean_t fuid_table_loaded; 1406 static boolean_t sa_loaded; 1407 sa_attr_type_t *sa_attr_table; 1408 1409 static void 1410 fuid_table_destroy() 1411 { 1412 if (fuid_table_loaded) { 1413 zfs_fuid_table_destroy(&idx_tree, &domain_tree); 1414 fuid_table_loaded = B_FALSE; 1415 } 1416 } 1417 1418 /* 1419 * print uid or gid information. 1420 * For normal POSIX id just the id is printed in decimal format. 1421 * For CIFS files with FUID the fuid is printed in hex followed by 1422 * the domain-rid string. 1423 */ 1424 static void 1425 print_idstr(uint64_t id, const char *id_type) 1426 { 1427 if (FUID_INDEX(id)) { 1428 char *domain; 1429 1430 domain = zfs_fuid_idx_domain(&idx_tree, FUID_INDEX(id)); 1431 (void) printf("\t%s %llx [%s-%d]\n", id_type, 1432 (u_longlong_t)id, domain, (int)FUID_RID(id)); 1433 } else { 1434 (void) printf("\t%s %llu\n", id_type, (u_longlong_t)id); 1435 } 1436 1437 } 1438 1439 static void 1440 dump_uidgid(objset_t *os, uint64_t uid, uint64_t gid) 1441 { 1442 uint32_t uid_idx, gid_idx; 1443 1444 uid_idx = FUID_INDEX(uid); 1445 gid_idx = FUID_INDEX(gid); 1446 1447 /* Load domain table, if not already loaded */ 1448 if (!fuid_table_loaded && (uid_idx || gid_idx)) { 1449 uint64_t fuid_obj; 1450 1451 /* first find the fuid object. It lives in the master node */ 1452 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_FUID_TABLES, 1453 8, 1, &fuid_obj) == 0); 1454 zfs_fuid_avl_tree_create(&idx_tree, &domain_tree); 1455 (void) zfs_fuid_table_load(os, fuid_obj, 1456 &idx_tree, &domain_tree); 1457 fuid_table_loaded = B_TRUE; 1458 } 1459 1460 print_idstr(uid, "uid"); 1461 print_idstr(gid, "gid"); 1462 } 1463 1464 /*ARGSUSED*/ 1465 static void 1466 dump_znode(objset_t *os, uint64_t object, void *data, size_t size) 1467 { 1468 char path[MAXPATHLEN * 2]; /* allow for xattr and failure prefix */ 1469 sa_handle_t *hdl; 1470 uint64_t xattr, rdev, gen; 1471 uint64_t uid, gid, mode, fsize, parent, links; 1472 uint64_t pflags; 1473 uint64_t acctm[2], modtm[2], chgtm[2], crtm[2]; 1474 time_t z_crtime, z_atime, z_mtime, z_ctime; 1475 sa_bulk_attr_t bulk[12]; 1476 int idx = 0; 1477 int error; 1478 1479 if (!sa_loaded) { 1480 uint64_t sa_attrs = 0; 1481 uint64_t version; 1482 1483 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZPL_VERSION_STR, 1484 8, 1, &version) == 0); 1485 if (version >= ZPL_VERSION_SA) { 1486 VERIFY(zap_lookup(os, MASTER_NODE_OBJ, ZFS_SA_ATTRS, 1487 8, 1, &sa_attrs) == 0); 1488 } 1489 if ((error = sa_setup(os, sa_attrs, zfs_attr_table, 1490 ZPL_END, &sa_attr_table)) != 0) { 1491 (void) printf("sa_setup failed errno %d, can't " 1492 "display znode contents\n", error); 1493 return; 1494 } 1495 sa_loaded = B_TRUE; 1496 } 1497 1498 if (sa_handle_get(os, object, NULL, SA_HDL_PRIVATE, &hdl)) { 1499 (void) printf("Failed to get handle for SA znode\n"); 1500 return; 1501 } 1502 1503 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_UID], NULL, &uid, 8); 1504 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GID], NULL, &gid, 8); 1505 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_LINKS], NULL, 1506 &links, 8); 1507 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_GEN], NULL, &gen, 8); 1508 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MODE], NULL, 1509 &mode, 8); 1510 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_PARENT], 1511 NULL, &parent, 8); 1512 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_SIZE], NULL, 1513 &fsize, 8); 1514 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_ATIME], NULL, 1515 acctm, 16); 1516 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_MTIME], NULL, 1517 modtm, 16); 1518 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CRTIME], NULL, 1519 crtm, 16); 1520 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_CTIME], NULL, 1521 chgtm, 16); 1522 SA_ADD_BULK_ATTR(bulk, idx, sa_attr_table[ZPL_FLAGS], NULL, 1523 &pflags, 8); 1524 1525 if (sa_bulk_lookup(hdl, bulk, idx)) { 1526 (void) sa_handle_destroy(hdl); 1527 return; 1528 } 1529 1530 error = zfs_obj_to_path(os, object, path, sizeof (path)); 1531 if (error != 0) { 1532 (void) snprintf(path, sizeof (path), "\?\?\?<object#%llu>", 1533 (u_longlong_t)object); 1534 } 1535 if (dump_opt['d'] < 3) { 1536 (void) printf("\t%s\n", path); 1537 (void) sa_handle_destroy(hdl); 1538 return; 1539 } 1540 1541 z_crtime = (time_t)crtm[0]; 1542 z_atime = (time_t)acctm[0]; 1543 z_mtime = (time_t)modtm[0]; 1544 z_ctime = (time_t)chgtm[0]; 1545 1546 (void) printf("\tpath %s\n", path); 1547 dump_uidgid(os, uid, gid); 1548 (void) printf("\tatime %s", ctime(&z_atime)); 1549 (void) printf("\tmtime %s", ctime(&z_mtime)); 1550 (void) printf("\tctime %s", ctime(&z_ctime)); 1551 (void) printf("\tcrtime %s", ctime(&z_crtime)); 1552 (void) printf("\tgen %llu\n", (u_longlong_t)gen); 1553 (void) printf("\tmode %llo\n", (u_longlong_t)mode); 1554 (void) printf("\tsize %llu\n", (u_longlong_t)fsize); 1555 (void) printf("\tparent %llu\n", (u_longlong_t)parent); 1556 (void) printf("\tlinks %llu\n", (u_longlong_t)links); 1557 (void) printf("\tpflags %llx\n", (u_longlong_t)pflags); 1558 if (sa_lookup(hdl, sa_attr_table[ZPL_XATTR], &xattr, 1559 sizeof (uint64_t)) == 0) 1560 (void) printf("\txattr %llu\n", (u_longlong_t)xattr); 1561 if (sa_lookup(hdl, sa_attr_table[ZPL_RDEV], &rdev, 1562 sizeof (uint64_t)) == 0) 1563 (void) printf("\trdev 0x%016llx\n", (u_longlong_t)rdev); 1564 sa_handle_destroy(hdl); 1565 } 1566 1567 /*ARGSUSED*/ 1568 static void 1569 dump_acl(objset_t *os, uint64_t object, void *data, size_t size) 1570 { 1571 } 1572 1573 /*ARGSUSED*/ 1574 static void 1575 dump_dmu_objset(objset_t *os, uint64_t object, void *data, size_t size) 1576 { 1577 } 1578 1579 static object_viewer_t *object_viewer[DMU_OT_NUMTYPES + 1] = { 1580 dump_none, /* unallocated */ 1581 dump_zap, /* object directory */ 1582 dump_uint64, /* object array */ 1583 dump_none, /* packed nvlist */ 1584 dump_packed_nvlist, /* packed nvlist size */ 1585 dump_none, /* bplist */ 1586 dump_none, /* bplist header */ 1587 dump_none, /* SPA space map header */ 1588 dump_none, /* SPA space map */ 1589 dump_none, /* ZIL intent log */ 1590 dump_dnode, /* DMU dnode */ 1591 dump_dmu_objset, /* DMU objset */ 1592 dump_dsl_dir, /* DSL directory */ 1593 dump_zap, /* DSL directory child map */ 1594 dump_zap, /* DSL dataset snap map */ 1595 dump_zap, /* DSL props */ 1596 dump_dsl_dataset, /* DSL dataset */ 1597 dump_znode, /* ZFS znode */ 1598 dump_acl, /* ZFS V0 ACL */ 1599 dump_uint8, /* ZFS plain file */ 1600 dump_zpldir, /* ZFS directory */ 1601 dump_zap, /* ZFS master node */ 1602 dump_zap, /* ZFS delete queue */ 1603 dump_uint8, /* zvol object */ 1604 dump_zap, /* zvol prop */ 1605 dump_uint8, /* other uint8[] */ 1606 dump_uint64, /* other uint64[] */ 1607 dump_zap, /* other ZAP */ 1608 dump_zap, /* persistent error log */ 1609 dump_uint8, /* SPA history */ 1610 dump_history_offsets, /* SPA history offsets */ 1611 dump_zap, /* Pool properties */ 1612 dump_zap, /* DSL permissions */ 1613 dump_acl, /* ZFS ACL */ 1614 dump_uint8, /* ZFS SYSACL */ 1615 dump_none, /* FUID nvlist */ 1616 dump_packed_nvlist, /* FUID nvlist size */ 1617 dump_zap, /* DSL dataset next clones */ 1618 dump_zap, /* DSL scrub queue */ 1619 dump_zap, /* ZFS user/group used */ 1620 dump_zap, /* ZFS user/group quota */ 1621 dump_zap, /* snapshot refcount tags */ 1622 dump_ddt_zap, /* DDT ZAP object */ 1623 dump_zap, /* DDT statistics */ 1624 dump_znode, /* SA object */ 1625 dump_zap, /* SA Master Node */ 1626 dump_sa_attrs, /* SA attribute registration */ 1627 dump_sa_layouts, /* SA attribute layouts */ 1628 dump_zap, /* DSL scrub translations */ 1629 dump_none, /* fake dedup BP */ 1630 dump_zap, /* deadlist */ 1631 dump_none, /* deadlist hdr */ 1632 dump_zap, /* dsl clones */ 1633 dump_none, /* bpobj subobjs */ 1634 dump_unknown, /* Unknown type, must be last */ 1635 }; 1636 1637 static void 1638 dump_object(objset_t *os, uint64_t object, int verbosity, int *print_header) 1639 { 1640 dmu_buf_t *db = NULL; 1641 dmu_object_info_t doi; 1642 dnode_t *dn; 1643 void *bonus = NULL; 1644 size_t bsize = 0; 1645 char iblk[32], dblk[32], lsize[32], asize[32], fill[32]; 1646 char bonus_size[32]; 1647 char aux[50]; 1648 int error; 1649 1650 if (*print_header) { 1651 (void) printf("\n%10s %3s %5s %5s %5s %5s %6s %s\n", 1652 "Object", "lvl", "iblk", "dblk", "dsize", "lsize", 1653 "%full", "type"); 1654 *print_header = 0; 1655 } 1656 1657 if (object == 0) { 1658 dn = DMU_META_DNODE(os); 1659 } else { 1660 error = dmu_bonus_hold(os, object, FTAG, &db); 1661 if (error) 1662 fatal("dmu_bonus_hold(%llu) failed, errno %u", 1663 object, error); 1664 bonus = db->db_data; 1665 bsize = db->db_size; 1666 dn = DB_DNODE((dmu_buf_impl_t *)db); 1667 } 1668 dmu_object_info_from_dnode(dn, &doi); 1669 1670 zdb_nicenum(doi.doi_metadata_block_size, iblk); 1671 zdb_nicenum(doi.doi_data_block_size, dblk); 1672 zdb_nicenum(doi.doi_max_offset, lsize); 1673 zdb_nicenum(doi.doi_physical_blocks_512 << 9, asize); 1674 zdb_nicenum(doi.doi_bonus_size, bonus_size); 1675 (void) sprintf(fill, "%6.2f", 100.0 * doi.doi_fill_count * 1676 doi.doi_data_block_size / (object == 0 ? DNODES_PER_BLOCK : 1) / 1677 doi.doi_max_offset); 1678 1679 aux[0] = '\0'; 1680 1681 if (doi.doi_checksum != ZIO_CHECKSUM_INHERIT || verbosity >= 6) { 1682 (void) snprintf(aux + strlen(aux), sizeof (aux), " (K=%s)", 1683 ZDB_CHECKSUM_NAME(doi.doi_checksum)); 1684 } 1685 1686 if (doi.doi_compress != ZIO_COMPRESS_INHERIT || verbosity >= 6) { 1687 (void) snprintf(aux + strlen(aux), sizeof (aux), " (Z=%s)", 1688 ZDB_COMPRESS_NAME(doi.doi_compress)); 1689 } 1690 1691 (void) printf("%10lld %3u %5s %5s %5s %5s %6s %s%s\n", 1692 (u_longlong_t)object, doi.doi_indirection, iblk, dblk, 1693 asize, lsize, fill, ZDB_OT_NAME(doi.doi_type), aux); 1694 1695 if (doi.doi_bonus_type != DMU_OT_NONE && verbosity > 3) { 1696 (void) printf("%10s %3s %5s %5s %5s %5s %6s %s\n", 1697 "", "", "", "", "", bonus_size, "bonus", 1698 ZDB_OT_NAME(doi.doi_bonus_type)); 1699 } 1700 1701 if (verbosity >= 4) { 1702 (void) printf("\tdnode flags: %s%s%s\n", 1703 (dn->dn_phys->dn_flags & DNODE_FLAG_USED_BYTES) ? 1704 "USED_BYTES " : "", 1705 (dn->dn_phys->dn_flags & DNODE_FLAG_USERUSED_ACCOUNTED) ? 1706 "USERUSED_ACCOUNTED " : "", 1707 (dn->dn_phys->dn_flags & DNODE_FLAG_SPILL_BLKPTR) ? 1708 "SPILL_BLKPTR" : ""); 1709 (void) printf("\tdnode maxblkid: %llu\n", 1710 (longlong_t)dn->dn_phys->dn_maxblkid); 1711 1712 object_viewer[ZDB_OT_TYPE(doi.doi_bonus_type)](os, object, 1713 bonus, bsize); 1714 object_viewer[ZDB_OT_TYPE(doi.doi_type)](os, object, NULL, 0); 1715 *print_header = 1; 1716 } 1717 1718 if (verbosity >= 5) 1719 dump_indirect(dn); 1720 1721 if (verbosity >= 5) { 1722 /* 1723 * Report the list of segments that comprise the object. 1724 */ 1725 uint64_t start = 0; 1726 uint64_t end; 1727 uint64_t blkfill = 1; 1728 int minlvl = 1; 1729 1730 if (dn->dn_type == DMU_OT_DNODE) { 1731 minlvl = 0; 1732 blkfill = DNODES_PER_BLOCK; 1733 } 1734 1735 for (;;) { 1736 char segsize[32]; 1737 error = dnode_next_offset(dn, 1738 0, &start, minlvl, blkfill, 0); 1739 if (error) 1740 break; 1741 end = start; 1742 error = dnode_next_offset(dn, 1743 DNODE_FIND_HOLE, &end, minlvl, blkfill, 0); 1744 zdb_nicenum(end - start, segsize); 1745 (void) printf("\t\tsegment [%016llx, %016llx)" 1746 " size %5s\n", (u_longlong_t)start, 1747 (u_longlong_t)end, segsize); 1748 if (error) 1749 break; 1750 start = end; 1751 } 1752 } 1753 1754 if (db != NULL) 1755 dmu_buf_rele(db, FTAG); 1756 } 1757 1758 static char *objset_types[DMU_OST_NUMTYPES] = { 1759 "NONE", "META", "ZPL", "ZVOL", "OTHER", "ANY" }; 1760 1761 static void 1762 dump_dir(objset_t *os) 1763 { 1764 dmu_objset_stats_t dds; 1765 uint64_t object, object_count; 1766 uint64_t refdbytes, usedobjs, scratch; 1767 char numbuf[32]; 1768 char blkbuf[BP_SPRINTF_LEN + 20]; 1769 char osname[MAXNAMELEN]; 1770 char *type = "UNKNOWN"; 1771 int verbosity = dump_opt['d']; 1772 int print_header = 1; 1773 int i, error; 1774 1775 dsl_pool_config_enter(dmu_objset_pool(os), FTAG); 1776 dmu_objset_fast_stat(os, &dds); 1777 dsl_pool_config_exit(dmu_objset_pool(os), FTAG); 1778 1779 if (dds.dds_type < DMU_OST_NUMTYPES) 1780 type = objset_types[dds.dds_type]; 1781 1782 if (dds.dds_type == DMU_OST_META) { 1783 dds.dds_creation_txg = TXG_INITIAL; 1784 usedobjs = os->os_rootbp->blk_fill; 1785 refdbytes = os->os_spa->spa_dsl_pool-> 1786 dp_mos_dir->dd_phys->dd_used_bytes; 1787 } else { 1788 dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch); 1789 } 1790 1791 ASSERT3U(usedobjs, ==, os->os_rootbp->blk_fill); 1792 1793 zdb_nicenum(refdbytes, numbuf); 1794 1795 if (verbosity >= 4) { 1796 (void) sprintf(blkbuf, ", rootbp "); 1797 (void) sprintf_blkptr(blkbuf + strlen(blkbuf), os->os_rootbp); 1798 } else { 1799 blkbuf[0] = '\0'; 1800 } 1801 1802 dmu_objset_name(os, osname); 1803 1804 (void) printf("Dataset %s [%s], ID %llu, cr_txg %llu, " 1805 "%s, %llu objects%s\n", 1806 osname, type, (u_longlong_t)dmu_objset_id(os), 1807 (u_longlong_t)dds.dds_creation_txg, 1808 numbuf, (u_longlong_t)usedobjs, blkbuf); 1809 1810 if (zopt_objects != 0) { 1811 for (i = 0; i < zopt_objects; i++) 1812 dump_object(os, zopt_object[i], verbosity, 1813 &print_header); 1814 (void) printf("\n"); 1815 return; 1816 } 1817 1818 if (dump_opt['i'] != 0 || verbosity >= 2) 1819 dump_intent_log(dmu_objset_zil(os)); 1820 1821 if (dmu_objset_ds(os) != NULL) 1822 dump_deadlist(&dmu_objset_ds(os)->ds_deadlist); 1823 1824 if (verbosity < 2) 1825 return; 1826 1827 if (os->os_rootbp->blk_birth == 0) 1828 return; 1829 1830 dump_object(os, 0, verbosity, &print_header); 1831 object_count = 0; 1832 if (DMU_USERUSED_DNODE(os) != NULL && 1833 DMU_USERUSED_DNODE(os)->dn_type != 0) { 1834 dump_object(os, DMU_USERUSED_OBJECT, verbosity, &print_header); 1835 dump_object(os, DMU_GROUPUSED_OBJECT, verbosity, &print_header); 1836 } 1837 1838 object = 0; 1839 while ((error = dmu_object_next(os, &object, B_FALSE, 0)) == 0) { 1840 dump_object(os, object, verbosity, &print_header); 1841 object_count++; 1842 } 1843 1844 ASSERT3U(object_count, ==, usedobjs); 1845 1846 (void) printf("\n"); 1847 1848 if (error != ESRCH) { 1849 (void) fprintf(stderr, "dmu_object_next() = %d\n", error); 1850 abort(); 1851 } 1852 } 1853 1854 static void 1855 dump_uberblock(uberblock_t *ub, const char *header, const char *footer) 1856 { 1857 time_t timestamp = ub->ub_timestamp; 1858 1859 (void) printf(header ? header : ""); 1860 (void) printf("\tmagic = %016llx\n", (u_longlong_t)ub->ub_magic); 1861 (void) printf("\tversion = %llu\n", (u_longlong_t)ub->ub_version); 1862 (void) printf("\ttxg = %llu\n", (u_longlong_t)ub->ub_txg); 1863 (void) printf("\tguid_sum = %llu\n", (u_longlong_t)ub->ub_guid_sum); 1864 (void) printf("\ttimestamp = %llu UTC = %s", 1865 (u_longlong_t)ub->ub_timestamp, asctime(localtime(×tamp))); 1866 if (dump_opt['u'] >= 3) { 1867 char blkbuf[BP_SPRINTF_LEN]; 1868 sprintf_blkptr(blkbuf, &ub->ub_rootbp); 1869 (void) printf("\trootbp = %s\n", blkbuf); 1870 } 1871 (void) printf(footer ? footer : ""); 1872 } 1873 1874 static void 1875 dump_config(spa_t *spa) 1876 { 1877 dmu_buf_t *db; 1878 size_t nvsize = 0; 1879 int error = 0; 1880 1881 1882 error = dmu_bonus_hold(spa->spa_meta_objset, 1883 spa->spa_config_object, FTAG, &db); 1884 1885 if (error == 0) { 1886 nvsize = *(uint64_t *)db->db_data; 1887 dmu_buf_rele(db, FTAG); 1888 1889 (void) printf("\nMOS Configuration:\n"); 1890 dump_packed_nvlist(spa->spa_meta_objset, 1891 spa->spa_config_object, (void *)&nvsize, 1); 1892 } else { 1893 (void) fprintf(stderr, "dmu_bonus_hold(%llu) failed, errno %d", 1894 (u_longlong_t)spa->spa_config_object, error); 1895 } 1896 } 1897 1898 static void 1899 dump_cachefile(const char *cachefile) 1900 { 1901 int fd; 1902 struct stat64 statbuf; 1903 char *buf; 1904 nvlist_t *config; 1905 1906 if ((fd = open64(cachefile, O_RDONLY)) < 0) { 1907 (void) printf("cannot open '%s': %s\n", cachefile, 1908 strerror(errno)); 1909 exit(1); 1910 } 1911 1912 if (fstat64(fd, &statbuf) != 0) { 1913 (void) printf("failed to stat '%s': %s\n", cachefile, 1914 strerror(errno)); 1915 exit(1); 1916 } 1917 1918 if ((buf = malloc(statbuf.st_size)) == NULL) { 1919 (void) fprintf(stderr, "failed to allocate %llu bytes\n", 1920 (u_longlong_t)statbuf.st_size); 1921 exit(1); 1922 } 1923 1924 if (read(fd, buf, statbuf.st_size) != statbuf.st_size) { 1925 (void) fprintf(stderr, "failed to read %llu bytes\n", 1926 (u_longlong_t)statbuf.st_size); 1927 exit(1); 1928 } 1929 1930 (void) close(fd); 1931 1932 if (nvlist_unpack(buf, statbuf.st_size, &config, 0) != 0) { 1933 (void) fprintf(stderr, "failed to unpack nvlist\n"); 1934 exit(1); 1935 } 1936 1937 free(buf); 1938 1939 dump_nvlist(config, 0); 1940 1941 nvlist_free(config); 1942 } 1943 1944 #define ZDB_MAX_UB_HEADER_SIZE 32 1945 1946 static void 1947 dump_label_uberblocks(vdev_label_t *lbl, uint64_t ashift) 1948 { 1949 vdev_t vd; 1950 vdev_t *vdp = &vd; 1951 char header[ZDB_MAX_UB_HEADER_SIZE]; 1952 1953 vd.vdev_ashift = ashift; 1954 vdp->vdev_top = vdp; 1955 1956 for (int i = 0; i < VDEV_UBERBLOCK_COUNT(vdp); i++) { 1957 uint64_t uoff = VDEV_UBERBLOCK_OFFSET(vdp, i); 1958 uberblock_t *ub = (void *)((char *)lbl + uoff); 1959 1960 if (uberblock_verify(ub)) 1961 continue; 1962 (void) snprintf(header, ZDB_MAX_UB_HEADER_SIZE, 1963 "Uberblock[%d]\n", i); 1964 dump_uberblock(ub, header, ""); 1965 } 1966 } 1967 1968 static void 1969 dump_label(const char *dev) 1970 { 1971 int fd; 1972 vdev_label_t label; 1973 char *path, *buf = label.vl_vdev_phys.vp_nvlist; 1974 size_t buflen = sizeof (label.vl_vdev_phys.vp_nvlist); 1975 struct stat64 statbuf; 1976 uint64_t psize, ashift; 1977 int len = strlen(dev) + 1; 1978 1979 if (strncmp(dev, "/dev/dsk/", 9) == 0) { 1980 len++; 1981 path = malloc(len); 1982 (void) snprintf(path, len, "%s%s", "/dev/rdsk/", dev + 9); 1983 } else { 1984 path = strdup(dev); 1985 } 1986 1987 if ((fd = open64(path, O_RDONLY)) < 0) { 1988 (void) printf("cannot open '%s': %s\n", path, strerror(errno)); 1989 free(path); 1990 exit(1); 1991 } 1992 1993 if (fstat64(fd, &statbuf) != 0) { 1994 (void) printf("failed to stat '%s': %s\n", path, 1995 strerror(errno)); 1996 free(path); 1997 (void) close(fd); 1998 exit(1); 1999 } 2000 2001 if (S_ISBLK(statbuf.st_mode)) { 2002 (void) printf("cannot use '%s': character device required\n", 2003 path); 2004 free(path); 2005 (void) close(fd); 2006 exit(1); 2007 } 2008 2009 psize = statbuf.st_size; 2010 psize = P2ALIGN(psize, (uint64_t)sizeof (vdev_label_t)); 2011 2012 for (int l = 0; l < VDEV_LABELS; l++) { 2013 nvlist_t *config = NULL; 2014 2015 (void) printf("--------------------------------------------\n"); 2016 (void) printf("LABEL %d\n", l); 2017 (void) printf("--------------------------------------------\n"); 2018 2019 if (pread64(fd, &label, sizeof (label), 2020 vdev_label_offset(psize, l, 0)) != sizeof (label)) { 2021 (void) printf("failed to read label %d\n", l); 2022 continue; 2023 } 2024 2025 if (nvlist_unpack(buf, buflen, &config, 0) != 0) { 2026 (void) printf("failed to unpack label %d\n", l); 2027 ashift = SPA_MINBLOCKSHIFT; 2028 } else { 2029 nvlist_t *vdev_tree = NULL; 2030 2031 dump_nvlist(config, 4); 2032 if ((nvlist_lookup_nvlist(config, 2033 ZPOOL_CONFIG_VDEV_TREE, &vdev_tree) != 0) || 2034 (nvlist_lookup_uint64(vdev_tree, 2035 ZPOOL_CONFIG_ASHIFT, &ashift) != 0)) 2036 ashift = SPA_MINBLOCKSHIFT; 2037 nvlist_free(config); 2038 } 2039 if (dump_opt['u']) 2040 dump_label_uberblocks(&label, ashift); 2041 } 2042 2043 free(path); 2044 (void) close(fd); 2045 } 2046 2047 /*ARGSUSED*/ 2048 static int 2049 dump_one_dir(const char *dsname, void *arg) 2050 { 2051 int error; 2052 objset_t *os; 2053 2054 error = dmu_objset_own(dsname, DMU_OST_ANY, B_TRUE, FTAG, &os); 2055 if (error) { 2056 (void) printf("Could not open %s, error %d\n", dsname, error); 2057 return (0); 2058 } 2059 dump_dir(os); 2060 dmu_objset_disown(os, FTAG); 2061 fuid_table_destroy(); 2062 sa_loaded = B_FALSE; 2063 return (0); 2064 } 2065 2066 /* 2067 * Block statistics. 2068 */ 2069 #define PSIZE_HISTO_SIZE (SPA_MAXBLOCKSIZE / SPA_MINBLOCKSIZE + 1) 2070 typedef struct zdb_blkstats { 2071 uint64_t zb_asize; 2072 uint64_t zb_lsize; 2073 uint64_t zb_psize; 2074 uint64_t zb_count; 2075 uint64_t zb_gangs; 2076 uint64_t zb_ditto_samevdev; 2077 uint64_t zb_psize_histogram[PSIZE_HISTO_SIZE]; 2078 } zdb_blkstats_t; 2079 2080 /* 2081 * Extended object types to report deferred frees and dedup auto-ditto blocks. 2082 */ 2083 #define ZDB_OT_DEFERRED (DMU_OT_NUMTYPES + 0) 2084 #define ZDB_OT_DITTO (DMU_OT_NUMTYPES + 1) 2085 #define ZDB_OT_OTHER (DMU_OT_NUMTYPES + 2) 2086 #define ZDB_OT_TOTAL (DMU_OT_NUMTYPES + 3) 2087 2088 static char *zdb_ot_extname[] = { 2089 "deferred free", 2090 "dedup ditto", 2091 "other", 2092 "Total", 2093 }; 2094 2095 #define ZB_TOTAL DN_MAX_LEVELS 2096 2097 typedef struct zdb_cb { 2098 zdb_blkstats_t zcb_type[ZB_TOTAL + 1][ZDB_OT_TOTAL + 1]; 2099 uint64_t zcb_dedup_asize; 2100 uint64_t zcb_dedup_blocks; 2101 uint64_t zcb_start; 2102 uint64_t zcb_lastprint; 2103 uint64_t zcb_totalasize; 2104 uint64_t zcb_errors[256]; 2105 int zcb_readfails; 2106 int zcb_haderrors; 2107 spa_t *zcb_spa; 2108 } zdb_cb_t; 2109 2110 static void 2111 zdb_count_block(zdb_cb_t *zcb, zilog_t *zilog, const blkptr_t *bp, 2112 dmu_object_type_t type) 2113 { 2114 uint64_t refcnt = 0; 2115 2116 ASSERT(type < ZDB_OT_TOTAL); 2117 2118 if (zilog && zil_bp_tree_add(zilog, bp) != 0) 2119 return; 2120 2121 for (int i = 0; i < 4; i++) { 2122 int l = (i < 2) ? BP_GET_LEVEL(bp) : ZB_TOTAL; 2123 int t = (i & 1) ? type : ZDB_OT_TOTAL; 2124 int equal; 2125 zdb_blkstats_t *zb = &zcb->zcb_type[l][t]; 2126 2127 zb->zb_asize += BP_GET_ASIZE(bp); 2128 zb->zb_lsize += BP_GET_LSIZE(bp); 2129 zb->zb_psize += BP_GET_PSIZE(bp); 2130 zb->zb_count++; 2131 zb->zb_psize_histogram[BP_GET_PSIZE(bp) >> SPA_MINBLOCKSHIFT]++; 2132 2133 zb->zb_gangs += BP_COUNT_GANG(bp); 2134 2135 switch (BP_GET_NDVAS(bp)) { 2136 case 2: 2137 if (DVA_GET_VDEV(&bp->blk_dva[0]) == 2138 DVA_GET_VDEV(&bp->blk_dva[1])) 2139 zb->zb_ditto_samevdev++; 2140 break; 2141 case 3: 2142 equal = (DVA_GET_VDEV(&bp->blk_dva[0]) == 2143 DVA_GET_VDEV(&bp->blk_dva[1])) + 2144 (DVA_GET_VDEV(&bp->blk_dva[0]) == 2145 DVA_GET_VDEV(&bp->blk_dva[2])) + 2146 (DVA_GET_VDEV(&bp->blk_dva[1]) == 2147 DVA_GET_VDEV(&bp->blk_dva[2])); 2148 if (equal != 0) 2149 zb->zb_ditto_samevdev++; 2150 break; 2151 } 2152 2153 } 2154 2155 if (dump_opt['L']) 2156 return; 2157 2158 if (BP_GET_DEDUP(bp)) { 2159 ddt_t *ddt; 2160 ddt_entry_t *dde; 2161 2162 ddt = ddt_select(zcb->zcb_spa, bp); 2163 ddt_enter(ddt); 2164 dde = ddt_lookup(ddt, bp, B_FALSE); 2165 2166 if (dde == NULL) { 2167 refcnt = 0; 2168 } else { 2169 ddt_phys_t *ddp = ddt_phys_select(dde, bp); 2170 ddt_phys_decref(ddp); 2171 refcnt = ddp->ddp_refcnt; 2172 if (ddt_phys_total_refcnt(dde) == 0) 2173 ddt_remove(ddt, dde); 2174 } 2175 ddt_exit(ddt); 2176 } 2177 2178 VERIFY3U(zio_wait(zio_claim(NULL, zcb->zcb_spa, 2179 refcnt ? 0 : spa_first_txg(zcb->zcb_spa), 2180 bp, NULL, NULL, ZIO_FLAG_CANFAIL)), ==, 0); 2181 } 2182 2183 static void 2184 zdb_blkptr_done(zio_t *zio) 2185 { 2186 spa_t *spa = zio->io_spa; 2187 blkptr_t *bp = zio->io_bp; 2188 int ioerr = zio->io_error; 2189 zdb_cb_t *zcb = zio->io_private; 2190 zbookmark_t *zb = &zio->io_bookmark; 2191 2192 zio_data_buf_free(zio->io_data, zio->io_size); 2193 2194 mutex_enter(&spa->spa_scrub_lock); 2195 spa->spa_scrub_inflight--; 2196 cv_broadcast(&spa->spa_scrub_io_cv); 2197 2198 if (ioerr && !(zio->io_flags & ZIO_FLAG_SPECULATIVE)) { 2199 char blkbuf[BP_SPRINTF_LEN]; 2200 2201 zcb->zcb_haderrors = 1; 2202 zcb->zcb_errors[ioerr]++; 2203 2204 if (dump_opt['b'] >= 2) 2205 sprintf_blkptr(blkbuf, bp); 2206 else 2207 blkbuf[0] = '\0'; 2208 2209 (void) printf("zdb_blkptr_cb: " 2210 "Got error %d reading " 2211 "<%llu, %llu, %lld, %llx> %s -- skipping\n", 2212 ioerr, 2213 (u_longlong_t)zb->zb_objset, 2214 (u_longlong_t)zb->zb_object, 2215 (u_longlong_t)zb->zb_level, 2216 (u_longlong_t)zb->zb_blkid, 2217 blkbuf); 2218 } 2219 mutex_exit(&spa->spa_scrub_lock); 2220 } 2221 2222 static int 2223 zdb_blkptr_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2224 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2225 { 2226 zdb_cb_t *zcb = arg; 2227 char blkbuf[BP_SPRINTF_LEN]; 2228 dmu_object_type_t type; 2229 boolean_t is_metadata; 2230 2231 if (bp == NULL) 2232 return (0); 2233 2234 type = BP_GET_TYPE(bp); 2235 2236 zdb_count_block(zcb, zilog, bp, 2237 (type & DMU_OT_NEWTYPE) ? ZDB_OT_OTHER : type); 2238 2239 is_metadata = (BP_GET_LEVEL(bp) != 0 || DMU_OT_IS_METADATA(type)); 2240 2241 if (dump_opt['c'] > 1 || (dump_opt['c'] && is_metadata)) { 2242 size_t size = BP_GET_PSIZE(bp); 2243 void *data = zio_data_buf_alloc(size); 2244 int flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_SCRUB | ZIO_FLAG_RAW; 2245 2246 /* If it's an intent log block, failure is expected. */ 2247 if (zb->zb_level == ZB_ZIL_LEVEL) 2248 flags |= ZIO_FLAG_SPECULATIVE; 2249 2250 mutex_enter(&spa->spa_scrub_lock); 2251 while (spa->spa_scrub_inflight > max_inflight) 2252 cv_wait(&spa->spa_scrub_io_cv, &spa->spa_scrub_lock); 2253 spa->spa_scrub_inflight++; 2254 mutex_exit(&spa->spa_scrub_lock); 2255 2256 zio_nowait(zio_read(NULL, spa, bp, data, size, 2257 zdb_blkptr_done, zcb, ZIO_PRIORITY_ASYNC_READ, flags, zb)); 2258 } 2259 2260 zcb->zcb_readfails = 0; 2261 2262 if (dump_opt['b'] >= 5) { 2263 sprintf_blkptr(blkbuf, bp); 2264 (void) printf("objset %llu object %llu " 2265 "level %lld offset 0x%llx %s\n", 2266 (u_longlong_t)zb->zb_objset, 2267 (u_longlong_t)zb->zb_object, 2268 (longlong_t)zb->zb_level, 2269 (u_longlong_t)blkid2offset(dnp, bp, zb), 2270 blkbuf); 2271 } 2272 2273 if (dump_opt['b'] < 5 && isatty(STDERR_FILENO) && 2274 gethrtime() > zcb->zcb_lastprint + NANOSEC) { 2275 uint64_t now = gethrtime(); 2276 char buf[10]; 2277 uint64_t bytes = zcb->zcb_type[ZB_TOTAL][ZDB_OT_TOTAL].zb_asize; 2278 int kb_per_sec = 2279 1 + bytes / (1 + ((now - zcb->zcb_start) / 1000 / 1000)); 2280 int sec_remaining = 2281 (zcb->zcb_totalasize - bytes) / 1024 / kb_per_sec; 2282 2283 zfs_nicenum(bytes, buf, sizeof (buf)); 2284 (void) fprintf(stderr, 2285 "\r%5s completed (%4dMB/s) " 2286 "estimated time remaining: %uhr %02umin %02usec ", 2287 buf, kb_per_sec / 1024, 2288 sec_remaining / 60 / 60, 2289 sec_remaining / 60 % 60, 2290 sec_remaining % 60); 2291 2292 zcb->zcb_lastprint = now; 2293 } 2294 2295 return (0); 2296 } 2297 2298 static void 2299 zdb_leak(void *arg, uint64_t start, uint64_t size) 2300 { 2301 vdev_t *vd = arg; 2302 2303 (void) printf("leaked space: vdev %llu, offset 0x%llx, size %llu\n", 2304 (u_longlong_t)vd->vdev_id, (u_longlong_t)start, (u_longlong_t)size); 2305 } 2306 2307 static metaslab_ops_t zdb_metaslab_ops = { 2308 NULL, /* alloc */ 2309 NULL /* fragmented */ 2310 }; 2311 2312 static void 2313 zdb_ddt_leak_init(spa_t *spa, zdb_cb_t *zcb) 2314 { 2315 ddt_bookmark_t ddb = { 0 }; 2316 ddt_entry_t dde; 2317 int error; 2318 2319 while ((error = ddt_walk(spa, &ddb, &dde)) == 0) { 2320 blkptr_t blk; 2321 ddt_phys_t *ddp = dde.dde_phys; 2322 2323 if (ddb.ddb_class == DDT_CLASS_UNIQUE) 2324 return; 2325 2326 ASSERT(ddt_phys_total_refcnt(&dde) > 1); 2327 2328 for (int p = 0; p < DDT_PHYS_TYPES; p++, ddp++) { 2329 if (ddp->ddp_phys_birth == 0) 2330 continue; 2331 ddt_bp_create(ddb.ddb_checksum, 2332 &dde.dde_key, ddp, &blk); 2333 if (p == DDT_PHYS_DITTO) { 2334 zdb_count_block(zcb, NULL, &blk, ZDB_OT_DITTO); 2335 } else { 2336 zcb->zcb_dedup_asize += 2337 BP_GET_ASIZE(&blk) * (ddp->ddp_refcnt - 1); 2338 zcb->zcb_dedup_blocks++; 2339 } 2340 } 2341 if (!dump_opt['L']) { 2342 ddt_t *ddt = spa->spa_ddt[ddb.ddb_checksum]; 2343 ddt_enter(ddt); 2344 VERIFY(ddt_lookup(ddt, &blk, B_TRUE) != NULL); 2345 ddt_exit(ddt); 2346 } 2347 } 2348 2349 ASSERT(error == ENOENT); 2350 } 2351 2352 static void 2353 zdb_leak_init(spa_t *spa, zdb_cb_t *zcb) 2354 { 2355 zcb->zcb_spa = spa; 2356 2357 if (!dump_opt['L']) { 2358 vdev_t *rvd = spa->spa_root_vdev; 2359 for (int c = 0; c < rvd->vdev_children; c++) { 2360 vdev_t *vd = rvd->vdev_child[c]; 2361 for (int m = 0; m < vd->vdev_ms_count; m++) { 2362 metaslab_t *msp = vd->vdev_ms[m]; 2363 mutex_enter(&msp->ms_lock); 2364 metaslab_unload(msp); 2365 2366 /* 2367 * For leak detection, we overload the metaslab 2368 * ms_tree to contain allocated segments 2369 * instead of free segments. As a result, 2370 * we can't use the normal metaslab_load/unload 2371 * interfaces. 2372 */ 2373 if (msp->ms_sm != NULL) { 2374 msp->ms_ops = &zdb_metaslab_ops; 2375 VERIFY0(space_map_load(msp->ms_sm, 2376 msp->ms_tree, SM_ALLOC)); 2377 msp->ms_loaded = B_TRUE; 2378 } 2379 mutex_exit(&msp->ms_lock); 2380 } 2381 } 2382 } 2383 2384 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2385 2386 zdb_ddt_leak_init(spa, zcb); 2387 2388 spa_config_exit(spa, SCL_CONFIG, FTAG); 2389 } 2390 2391 static void 2392 zdb_leak_fini(spa_t *spa) 2393 { 2394 if (!dump_opt['L']) { 2395 vdev_t *rvd = spa->spa_root_vdev; 2396 for (int c = 0; c < rvd->vdev_children; c++) { 2397 vdev_t *vd = rvd->vdev_child[c]; 2398 for (int m = 0; m < vd->vdev_ms_count; m++) { 2399 metaslab_t *msp = vd->vdev_ms[m]; 2400 mutex_enter(&msp->ms_lock); 2401 2402 /* 2403 * The ms_tree has been overloaded to 2404 * contain allocated segments. Now that we 2405 * finished traversing all blocks, any 2406 * block that remains in the ms_tree 2407 * represents an allocated block that we 2408 * did not claim during the traversal. 2409 * Claimed blocks would have been removed 2410 * from the ms_tree. 2411 */ 2412 range_tree_vacate(msp->ms_tree, zdb_leak, vd); 2413 msp->ms_loaded = B_FALSE; 2414 2415 mutex_exit(&msp->ms_lock); 2416 } 2417 } 2418 } 2419 } 2420 2421 /* ARGSUSED */ 2422 static int 2423 count_block_cb(void *arg, const blkptr_t *bp, dmu_tx_t *tx) 2424 { 2425 zdb_cb_t *zcb = arg; 2426 2427 if (dump_opt['b'] >= 5) { 2428 char blkbuf[BP_SPRINTF_LEN]; 2429 sprintf_blkptr(blkbuf, bp); 2430 (void) printf("[%s] %s\n", 2431 "deferred free", blkbuf); 2432 } 2433 zdb_count_block(zcb, NULL, bp, ZDB_OT_DEFERRED); 2434 return (0); 2435 } 2436 2437 static int 2438 dump_block_stats(spa_t *spa) 2439 { 2440 zdb_cb_t zcb = { 0 }; 2441 zdb_blkstats_t *zb, *tzb; 2442 uint64_t norm_alloc, norm_space, total_alloc, total_found; 2443 int flags = TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA | TRAVERSE_HARD; 2444 int leaks = 0; 2445 2446 (void) printf("\nTraversing all blocks %s%s%s%s%s...\n\n", 2447 (dump_opt['c'] || !dump_opt['L']) ? "to verify " : "", 2448 (dump_opt['c'] == 1) ? "metadata " : "", 2449 dump_opt['c'] ? "checksums " : "", 2450 (dump_opt['c'] && !dump_opt['L']) ? "and verify " : "", 2451 !dump_opt['L'] ? "nothing leaked " : ""); 2452 2453 /* 2454 * Load all space maps as SM_ALLOC maps, then traverse the pool 2455 * claiming each block we discover. If the pool is perfectly 2456 * consistent, the space maps will be empty when we're done. 2457 * Anything left over is a leak; any block we can't claim (because 2458 * it's not part of any space map) is a double allocation, 2459 * reference to a freed block, or an unclaimed log block. 2460 */ 2461 zdb_leak_init(spa, &zcb); 2462 2463 /* 2464 * If there's a deferred-free bplist, process that first. 2465 */ 2466 (void) bpobj_iterate_nofree(&spa->spa_deferred_bpobj, 2467 count_block_cb, &zcb, NULL); 2468 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2469 (void) bpobj_iterate_nofree(&spa->spa_dsl_pool->dp_free_bpobj, 2470 count_block_cb, &zcb, NULL); 2471 } 2472 if (spa_feature_is_active(spa, SPA_FEATURE_ASYNC_DESTROY)) { 2473 VERIFY3U(0, ==, bptree_iterate(spa->spa_meta_objset, 2474 spa->spa_dsl_pool->dp_bptree_obj, B_FALSE, count_block_cb, 2475 &zcb, NULL)); 2476 } 2477 2478 if (dump_opt['c'] > 1) 2479 flags |= TRAVERSE_PREFETCH_DATA; 2480 2481 zcb.zcb_totalasize = metaslab_class_get_alloc(spa_normal_class(spa)); 2482 zcb.zcb_start = zcb.zcb_lastprint = gethrtime(); 2483 zcb.zcb_haderrors |= traverse_pool(spa, 0, flags, zdb_blkptr_cb, &zcb); 2484 2485 /* 2486 * If we've traversed the data blocks then we need to wait for those 2487 * I/Os to complete. We leverage "The Godfather" zio to wait on 2488 * all async I/Os to complete. 2489 */ 2490 if (dump_opt['c']) { 2491 (void) zio_wait(spa->spa_async_zio_root); 2492 spa->spa_async_zio_root = zio_root(spa, NULL, NULL, 2493 ZIO_FLAG_CANFAIL | ZIO_FLAG_SPECULATIVE | 2494 ZIO_FLAG_GODFATHER); 2495 } 2496 2497 if (zcb.zcb_haderrors) { 2498 (void) printf("\nError counts:\n\n"); 2499 (void) printf("\t%5s %s\n", "errno", "count"); 2500 for (int e = 0; e < 256; e++) { 2501 if (zcb.zcb_errors[e] != 0) { 2502 (void) printf("\t%5d %llu\n", 2503 e, (u_longlong_t)zcb.zcb_errors[e]); 2504 } 2505 } 2506 } 2507 2508 /* 2509 * Report any leaked segments. 2510 */ 2511 zdb_leak_fini(spa); 2512 2513 tzb = &zcb.zcb_type[ZB_TOTAL][ZDB_OT_TOTAL]; 2514 2515 norm_alloc = metaslab_class_get_alloc(spa_normal_class(spa)); 2516 norm_space = metaslab_class_get_space(spa_normal_class(spa)); 2517 2518 total_alloc = norm_alloc + metaslab_class_get_alloc(spa_log_class(spa)); 2519 total_found = tzb->zb_asize - zcb.zcb_dedup_asize; 2520 2521 if (total_found == total_alloc) { 2522 if (!dump_opt['L']) 2523 (void) printf("\n\tNo leaks (block sum matches space" 2524 " maps exactly)\n"); 2525 } else { 2526 (void) printf("block traversal size %llu != alloc %llu " 2527 "(%s %lld)\n", 2528 (u_longlong_t)total_found, 2529 (u_longlong_t)total_alloc, 2530 (dump_opt['L']) ? "unreachable" : "leaked", 2531 (longlong_t)(total_alloc - total_found)); 2532 leaks = 1; 2533 } 2534 2535 if (tzb->zb_count == 0) 2536 return (2); 2537 2538 (void) printf("\n"); 2539 (void) printf("\tbp count: %10llu\n", 2540 (u_longlong_t)tzb->zb_count); 2541 (void) printf("\tganged count: %10llu\n", 2542 (longlong_t)tzb->zb_gangs); 2543 (void) printf("\tbp logical: %10llu avg: %6llu\n", 2544 (u_longlong_t)tzb->zb_lsize, 2545 (u_longlong_t)(tzb->zb_lsize / tzb->zb_count)); 2546 (void) printf("\tbp physical: %10llu avg:" 2547 " %6llu compression: %6.2f\n", 2548 (u_longlong_t)tzb->zb_psize, 2549 (u_longlong_t)(tzb->zb_psize / tzb->zb_count), 2550 (double)tzb->zb_lsize / tzb->zb_psize); 2551 (void) printf("\tbp allocated: %10llu avg:" 2552 " %6llu compression: %6.2f\n", 2553 (u_longlong_t)tzb->zb_asize, 2554 (u_longlong_t)(tzb->zb_asize / tzb->zb_count), 2555 (double)tzb->zb_lsize / tzb->zb_asize); 2556 (void) printf("\tbp deduped: %10llu ref>1:" 2557 " %6llu deduplication: %6.2f\n", 2558 (u_longlong_t)zcb.zcb_dedup_asize, 2559 (u_longlong_t)zcb.zcb_dedup_blocks, 2560 (double)zcb.zcb_dedup_asize / tzb->zb_asize + 1.0); 2561 (void) printf("\tSPA allocated: %10llu used: %5.2f%%\n", 2562 (u_longlong_t)norm_alloc, 100.0 * norm_alloc / norm_space); 2563 2564 if (tzb->zb_ditto_samevdev != 0) { 2565 (void) printf("\tDittoed blocks on same vdev: %llu\n", 2566 (longlong_t)tzb->zb_ditto_samevdev); 2567 } 2568 2569 if (dump_opt['b'] >= 2) { 2570 int l, t, level; 2571 (void) printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 2572 "\t avg\t comp\t%%Total\tType\n"); 2573 2574 for (t = 0; t <= ZDB_OT_TOTAL; t++) { 2575 char csize[32], lsize[32], psize[32], asize[32]; 2576 char avg[32], gang[32]; 2577 char *typename; 2578 2579 if (t < DMU_OT_NUMTYPES) 2580 typename = dmu_ot[t].ot_name; 2581 else 2582 typename = zdb_ot_extname[t - DMU_OT_NUMTYPES]; 2583 2584 if (zcb.zcb_type[ZB_TOTAL][t].zb_asize == 0) { 2585 (void) printf("%6s\t%5s\t%5s\t%5s" 2586 "\t%5s\t%5s\t%6s\t%s\n", 2587 "-", 2588 "-", 2589 "-", 2590 "-", 2591 "-", 2592 "-", 2593 "-", 2594 typename); 2595 continue; 2596 } 2597 2598 for (l = ZB_TOTAL - 1; l >= -1; l--) { 2599 level = (l == -1 ? ZB_TOTAL : l); 2600 zb = &zcb.zcb_type[level][t]; 2601 2602 if (zb->zb_asize == 0) 2603 continue; 2604 2605 if (dump_opt['b'] < 3 && level != ZB_TOTAL) 2606 continue; 2607 2608 if (level == 0 && zb->zb_asize == 2609 zcb.zcb_type[ZB_TOTAL][t].zb_asize) 2610 continue; 2611 2612 zdb_nicenum(zb->zb_count, csize); 2613 zdb_nicenum(zb->zb_lsize, lsize); 2614 zdb_nicenum(zb->zb_psize, psize); 2615 zdb_nicenum(zb->zb_asize, asize); 2616 zdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2617 zdb_nicenum(zb->zb_gangs, gang); 2618 2619 (void) printf("%6s\t%5s\t%5s\t%5s\t%5s" 2620 "\t%5.2f\t%6.2f\t", 2621 csize, lsize, psize, asize, avg, 2622 (double)zb->zb_lsize / zb->zb_psize, 2623 100.0 * zb->zb_asize / tzb->zb_asize); 2624 2625 if (level == ZB_TOTAL) 2626 (void) printf("%s\n", typename); 2627 else 2628 (void) printf(" L%d %s\n", 2629 level, typename); 2630 2631 if (dump_opt['b'] >= 3 && zb->zb_gangs > 0) { 2632 (void) printf("\t number of ganged " 2633 "blocks: %s\n", gang); 2634 } 2635 2636 if (dump_opt['b'] >= 4) { 2637 (void) printf("psize " 2638 "(in 512-byte sectors): " 2639 "number of blocks\n"); 2640 dump_histogram(zb->zb_psize_histogram, 2641 PSIZE_HISTO_SIZE, 0); 2642 } 2643 } 2644 } 2645 } 2646 2647 (void) printf("\n"); 2648 2649 if (leaks) 2650 return (2); 2651 2652 if (zcb.zcb_haderrors) 2653 return (3); 2654 2655 return (0); 2656 } 2657 2658 typedef struct zdb_ddt_entry { 2659 ddt_key_t zdde_key; 2660 uint64_t zdde_ref_blocks; 2661 uint64_t zdde_ref_lsize; 2662 uint64_t zdde_ref_psize; 2663 uint64_t zdde_ref_dsize; 2664 avl_node_t zdde_node; 2665 } zdb_ddt_entry_t; 2666 2667 /* ARGSUSED */ 2668 static int 2669 zdb_ddt_add_cb(spa_t *spa, zilog_t *zilog, const blkptr_t *bp, 2670 const zbookmark_t *zb, const dnode_phys_t *dnp, void *arg) 2671 { 2672 avl_tree_t *t = arg; 2673 avl_index_t where; 2674 zdb_ddt_entry_t *zdde, zdde_search; 2675 2676 if (bp == NULL) 2677 return (0); 2678 2679 if (dump_opt['S'] > 1 && zb->zb_level == ZB_ROOT_LEVEL) { 2680 (void) printf("traversing objset %llu, %llu objects, " 2681 "%lu blocks so far\n", 2682 (u_longlong_t)zb->zb_objset, 2683 (u_longlong_t)bp->blk_fill, 2684 avl_numnodes(t)); 2685 } 2686 2687 if (BP_IS_HOLE(bp) || BP_GET_CHECKSUM(bp) == ZIO_CHECKSUM_OFF || 2688 BP_GET_LEVEL(bp) > 0 || DMU_OT_IS_METADATA(BP_GET_TYPE(bp))) 2689 return (0); 2690 2691 ddt_key_fill(&zdde_search.zdde_key, bp); 2692 2693 zdde = avl_find(t, &zdde_search, &where); 2694 2695 if (zdde == NULL) { 2696 zdde = umem_zalloc(sizeof (*zdde), UMEM_NOFAIL); 2697 zdde->zdde_key = zdde_search.zdde_key; 2698 avl_insert(t, zdde, where); 2699 } 2700 2701 zdde->zdde_ref_blocks += 1; 2702 zdde->zdde_ref_lsize += BP_GET_LSIZE(bp); 2703 zdde->zdde_ref_psize += BP_GET_PSIZE(bp); 2704 zdde->zdde_ref_dsize += bp_get_dsize_sync(spa, bp); 2705 2706 return (0); 2707 } 2708 2709 static void 2710 dump_simulated_ddt(spa_t *spa) 2711 { 2712 avl_tree_t t; 2713 void *cookie = NULL; 2714 zdb_ddt_entry_t *zdde; 2715 ddt_histogram_t ddh_total = { 0 }; 2716 ddt_stat_t dds_total = { 0 }; 2717 2718 avl_create(&t, ddt_entry_compare, 2719 sizeof (zdb_ddt_entry_t), offsetof(zdb_ddt_entry_t, zdde_node)); 2720 2721 spa_config_enter(spa, SCL_CONFIG, FTAG, RW_READER); 2722 2723 (void) traverse_pool(spa, 0, TRAVERSE_PRE | TRAVERSE_PREFETCH_METADATA, 2724 zdb_ddt_add_cb, &t); 2725 2726 spa_config_exit(spa, SCL_CONFIG, FTAG); 2727 2728 while ((zdde = avl_destroy_nodes(&t, &cookie)) != NULL) { 2729 ddt_stat_t dds; 2730 uint64_t refcnt = zdde->zdde_ref_blocks; 2731 ASSERT(refcnt != 0); 2732 2733 dds.dds_blocks = zdde->zdde_ref_blocks / refcnt; 2734 dds.dds_lsize = zdde->zdde_ref_lsize / refcnt; 2735 dds.dds_psize = zdde->zdde_ref_psize / refcnt; 2736 dds.dds_dsize = zdde->zdde_ref_dsize / refcnt; 2737 2738 dds.dds_ref_blocks = zdde->zdde_ref_blocks; 2739 dds.dds_ref_lsize = zdde->zdde_ref_lsize; 2740 dds.dds_ref_psize = zdde->zdde_ref_psize; 2741 dds.dds_ref_dsize = zdde->zdde_ref_dsize; 2742 2743 ddt_stat_add(&ddh_total.ddh_stat[highbit(refcnt) - 1], &dds, 0); 2744 2745 umem_free(zdde, sizeof (*zdde)); 2746 } 2747 2748 avl_destroy(&t); 2749 2750 ddt_histogram_stat(&dds_total, &ddh_total); 2751 2752 (void) printf("Simulated DDT histogram:\n"); 2753 2754 zpool_dump_ddt(&dds_total, &ddh_total); 2755 2756 dump_dedup_ratio(&dds_total); 2757 } 2758 2759 static void 2760 dump_zpool(spa_t *spa) 2761 { 2762 dsl_pool_t *dp = spa_get_dsl(spa); 2763 int rc = 0; 2764 2765 if (dump_opt['S']) { 2766 dump_simulated_ddt(spa); 2767 return; 2768 } 2769 2770 if (!dump_opt['e'] && dump_opt['C'] > 1) { 2771 (void) printf("\nCached configuration:\n"); 2772 dump_nvlist(spa->spa_config, 8); 2773 } 2774 2775 if (dump_opt['C']) 2776 dump_config(spa); 2777 2778 if (dump_opt['u']) 2779 dump_uberblock(&spa->spa_uberblock, "\nUberblock:\n", "\n"); 2780 2781 if (dump_opt['D']) 2782 dump_all_ddts(spa); 2783 2784 if (dump_opt['d'] > 2 || dump_opt['m']) 2785 dump_metaslabs(spa); 2786 2787 if (dump_opt['d'] || dump_opt['i']) { 2788 dump_dir(dp->dp_meta_objset); 2789 if (dump_opt['d'] >= 3) { 2790 dump_bpobj(&spa->spa_deferred_bpobj, 2791 "Deferred frees", 0); 2792 if (spa_version(spa) >= SPA_VERSION_DEADLISTS) { 2793 dump_bpobj(&spa->spa_dsl_pool->dp_free_bpobj, 2794 "Pool snapshot frees", 0); 2795 } 2796 2797 if (spa_feature_is_active(spa, 2798 SPA_FEATURE_ASYNC_DESTROY)) { 2799 dump_bptree(spa->spa_meta_objset, 2800 spa->spa_dsl_pool->dp_bptree_obj, 2801 "Pool dataset frees"); 2802 } 2803 dump_dtl(spa->spa_root_vdev, 0); 2804 } 2805 (void) dmu_objset_find(spa_name(spa), dump_one_dir, 2806 NULL, DS_FIND_SNAPSHOTS | DS_FIND_CHILDREN); 2807 } 2808 if (dump_opt['b'] || dump_opt['c']) 2809 rc = dump_block_stats(spa); 2810 2811 if (rc == 0) 2812 rc = verify_spacemap_refcounts(spa); 2813 2814 if (dump_opt['s']) 2815 show_pool_stats(spa); 2816 2817 if (dump_opt['h']) 2818 dump_history(spa); 2819 2820 if (rc != 0) 2821 exit(rc); 2822 } 2823 2824 #define ZDB_FLAG_CHECKSUM 0x0001 2825 #define ZDB_FLAG_DECOMPRESS 0x0002 2826 #define ZDB_FLAG_BSWAP 0x0004 2827 #define ZDB_FLAG_GBH 0x0008 2828 #define ZDB_FLAG_INDIRECT 0x0010 2829 #define ZDB_FLAG_PHYS 0x0020 2830 #define ZDB_FLAG_RAW 0x0040 2831 #define ZDB_FLAG_PRINT_BLKPTR 0x0080 2832 2833 int flagbits[256]; 2834 2835 static void 2836 zdb_print_blkptr(blkptr_t *bp, int flags) 2837 { 2838 char blkbuf[BP_SPRINTF_LEN]; 2839 2840 if (flags & ZDB_FLAG_BSWAP) 2841 byteswap_uint64_array((void *)bp, sizeof (blkptr_t)); 2842 2843 sprintf_blkptr(blkbuf, bp); 2844 (void) printf("%s\n", blkbuf); 2845 } 2846 2847 static void 2848 zdb_dump_indirect(blkptr_t *bp, int nbps, int flags) 2849 { 2850 int i; 2851 2852 for (i = 0; i < nbps; i++) 2853 zdb_print_blkptr(&bp[i], flags); 2854 } 2855 2856 static void 2857 zdb_dump_gbh(void *buf, int flags) 2858 { 2859 zdb_dump_indirect((blkptr_t *)buf, SPA_GBH_NBLKPTRS, flags); 2860 } 2861 2862 static void 2863 zdb_dump_block_raw(void *buf, uint64_t size, int flags) 2864 { 2865 if (flags & ZDB_FLAG_BSWAP) 2866 byteswap_uint64_array(buf, size); 2867 (void) write(1, buf, size); 2868 } 2869 2870 static void 2871 zdb_dump_block(char *label, void *buf, uint64_t size, int flags) 2872 { 2873 uint64_t *d = (uint64_t *)buf; 2874 int nwords = size / sizeof (uint64_t); 2875 int do_bswap = !!(flags & ZDB_FLAG_BSWAP); 2876 int i, j; 2877 char *hdr, *c; 2878 2879 2880 if (do_bswap) 2881 hdr = " 7 6 5 4 3 2 1 0 f e d c b a 9 8"; 2882 else 2883 hdr = " 0 1 2 3 4 5 6 7 8 9 a b c d e f"; 2884 2885 (void) printf("\n%s\n%6s %s 0123456789abcdef\n", label, "", hdr); 2886 2887 for (i = 0; i < nwords; i += 2) { 2888 (void) printf("%06llx: %016llx %016llx ", 2889 (u_longlong_t)(i * sizeof (uint64_t)), 2890 (u_longlong_t)(do_bswap ? BSWAP_64(d[i]) : d[i]), 2891 (u_longlong_t)(do_bswap ? BSWAP_64(d[i + 1]) : d[i + 1])); 2892 2893 c = (char *)&d[i]; 2894 for (j = 0; j < 2 * sizeof (uint64_t); j++) 2895 (void) printf("%c", isprint(c[j]) ? c[j] : '.'); 2896 (void) printf("\n"); 2897 } 2898 } 2899 2900 /* 2901 * There are two acceptable formats: 2902 * leaf_name - For example: c1t0d0 or /tmp/ztest.0a 2903 * child[.child]* - For example: 0.1.1 2904 * 2905 * The second form can be used to specify arbitrary vdevs anywhere 2906 * in the heirarchy. For example, in a pool with a mirror of 2907 * RAID-Zs, you can specify either RAID-Z vdev with 0.0 or 0.1 . 2908 */ 2909 static vdev_t * 2910 zdb_vdev_lookup(vdev_t *vdev, char *path) 2911 { 2912 char *s, *p, *q; 2913 int i; 2914 2915 if (vdev == NULL) 2916 return (NULL); 2917 2918 /* First, assume the x.x.x.x format */ 2919 i = (int)strtoul(path, &s, 10); 2920 if (s == path || (s && *s != '.' && *s != '\0')) 2921 goto name; 2922 if (i < 0 || i >= vdev->vdev_children) 2923 return (NULL); 2924 2925 vdev = vdev->vdev_child[i]; 2926 if (*s == '\0') 2927 return (vdev); 2928 return (zdb_vdev_lookup(vdev, s+1)); 2929 2930 name: 2931 for (i = 0; i < vdev->vdev_children; i++) { 2932 vdev_t *vc = vdev->vdev_child[i]; 2933 2934 if (vc->vdev_path == NULL) { 2935 vc = zdb_vdev_lookup(vc, path); 2936 if (vc == NULL) 2937 continue; 2938 else 2939 return (vc); 2940 } 2941 2942 p = strrchr(vc->vdev_path, '/'); 2943 p = p ? p + 1 : vc->vdev_path; 2944 q = &vc->vdev_path[strlen(vc->vdev_path) - 2]; 2945 2946 if (strcmp(vc->vdev_path, path) == 0) 2947 return (vc); 2948 if (strcmp(p, path) == 0) 2949 return (vc); 2950 if (strcmp(q, "s0") == 0 && strncmp(p, path, q - p) == 0) 2951 return (vc); 2952 } 2953 2954 return (NULL); 2955 } 2956 2957 /* 2958 * Read a block from a pool and print it out. The syntax of the 2959 * block descriptor is: 2960 * 2961 * pool:vdev_specifier:offset:size[:flags] 2962 * 2963 * pool - The name of the pool you wish to read from 2964 * vdev_specifier - Which vdev (see comment for zdb_vdev_lookup) 2965 * offset - offset, in hex, in bytes 2966 * size - Amount of data to read, in hex, in bytes 2967 * flags - A string of characters specifying options 2968 * b: Decode a blkptr at given offset within block 2969 * *c: Calculate and display checksums 2970 * d: Decompress data before dumping 2971 * e: Byteswap data before dumping 2972 * g: Display data as a gang block header 2973 * i: Display as an indirect block 2974 * p: Do I/O to physical offset 2975 * r: Dump raw data to stdout 2976 * 2977 * * = not yet implemented 2978 */ 2979 static void 2980 zdb_read_block(char *thing, spa_t *spa) 2981 { 2982 blkptr_t blk, *bp = &blk; 2983 dva_t *dva = bp->blk_dva; 2984 int flags = 0; 2985 uint64_t offset = 0, size = 0, psize = 0, lsize = 0, blkptr_offset = 0; 2986 zio_t *zio; 2987 vdev_t *vd; 2988 void *pbuf, *lbuf, *buf; 2989 char *s, *p, *dup, *vdev, *flagstr; 2990 int i, error; 2991 2992 dup = strdup(thing); 2993 s = strtok(dup, ":"); 2994 vdev = s ? s : ""; 2995 s = strtok(NULL, ":"); 2996 offset = strtoull(s ? s : "", NULL, 16); 2997 s = strtok(NULL, ":"); 2998 size = strtoull(s ? s : "", NULL, 16); 2999 s = strtok(NULL, ":"); 3000 flagstr = s ? s : ""; 3001 3002 s = NULL; 3003 if (size == 0) 3004 s = "size must not be zero"; 3005 if (!IS_P2ALIGNED(size, DEV_BSIZE)) 3006 s = "size must be a multiple of sector size"; 3007 if (!IS_P2ALIGNED(offset, DEV_BSIZE)) 3008 s = "offset must be a multiple of sector size"; 3009 if (s) { 3010 (void) printf("Invalid block specifier: %s - %s\n", thing, s); 3011 free(dup); 3012 return; 3013 } 3014 3015 for (s = strtok(flagstr, ":"); s; s = strtok(NULL, ":")) { 3016 for (i = 0; flagstr[i]; i++) { 3017 int bit = flagbits[(uchar_t)flagstr[i]]; 3018 3019 if (bit == 0) { 3020 (void) printf("***Invalid flag: %c\n", 3021 flagstr[i]); 3022 continue; 3023 } 3024 flags |= bit; 3025 3026 /* If it's not something with an argument, keep going */ 3027 if ((bit & (ZDB_FLAG_CHECKSUM | 3028 ZDB_FLAG_PRINT_BLKPTR)) == 0) 3029 continue; 3030 3031 p = &flagstr[i + 1]; 3032 if (bit == ZDB_FLAG_PRINT_BLKPTR) 3033 blkptr_offset = strtoull(p, &p, 16); 3034 if (*p != ':' && *p != '\0') { 3035 (void) printf("***Invalid flag arg: '%s'\n", s); 3036 free(dup); 3037 return; 3038 } 3039 } 3040 } 3041 3042 vd = zdb_vdev_lookup(spa->spa_root_vdev, vdev); 3043 if (vd == NULL) { 3044 (void) printf("***Invalid vdev: %s\n", vdev); 3045 free(dup); 3046 return; 3047 } else { 3048 if (vd->vdev_path) 3049 (void) fprintf(stderr, "Found vdev: %s\n", 3050 vd->vdev_path); 3051 else 3052 (void) fprintf(stderr, "Found vdev type: %s\n", 3053 vd->vdev_ops->vdev_op_type); 3054 } 3055 3056 psize = size; 3057 lsize = size; 3058 3059 pbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3060 lbuf = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3061 3062 BP_ZERO(bp); 3063 3064 DVA_SET_VDEV(&dva[0], vd->vdev_id); 3065 DVA_SET_OFFSET(&dva[0], offset); 3066 DVA_SET_GANG(&dva[0], !!(flags & ZDB_FLAG_GBH)); 3067 DVA_SET_ASIZE(&dva[0], vdev_psize_to_asize(vd, psize)); 3068 3069 BP_SET_BIRTH(bp, TXG_INITIAL, TXG_INITIAL); 3070 3071 BP_SET_LSIZE(bp, lsize); 3072 BP_SET_PSIZE(bp, psize); 3073 BP_SET_COMPRESS(bp, ZIO_COMPRESS_OFF); 3074 BP_SET_CHECKSUM(bp, ZIO_CHECKSUM_OFF); 3075 BP_SET_TYPE(bp, DMU_OT_NONE); 3076 BP_SET_LEVEL(bp, 0); 3077 BP_SET_DEDUP(bp, 0); 3078 BP_SET_BYTEORDER(bp, ZFS_HOST_BYTEORDER); 3079 3080 spa_config_enter(spa, SCL_STATE, FTAG, RW_READER); 3081 zio = zio_root(spa, NULL, NULL, 0); 3082 3083 if (vd == vd->vdev_top) { 3084 /* 3085 * Treat this as a normal block read. 3086 */ 3087 zio_nowait(zio_read(zio, spa, bp, pbuf, psize, NULL, NULL, 3088 ZIO_PRIORITY_SYNC_READ, 3089 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL)); 3090 } else { 3091 /* 3092 * Treat this as a vdev child I/O. 3093 */ 3094 zio_nowait(zio_vdev_child_io(zio, bp, vd, offset, pbuf, psize, 3095 ZIO_TYPE_READ, ZIO_PRIORITY_SYNC_READ, 3096 ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_QUEUE | 3097 ZIO_FLAG_DONT_PROPAGATE | ZIO_FLAG_DONT_RETRY | 3098 ZIO_FLAG_CANFAIL | ZIO_FLAG_RAW, NULL, NULL)); 3099 } 3100 3101 error = zio_wait(zio); 3102 spa_config_exit(spa, SCL_STATE, FTAG); 3103 3104 if (error) { 3105 (void) printf("Read of %s failed, error: %d\n", thing, error); 3106 goto out; 3107 } 3108 3109 if (flags & ZDB_FLAG_DECOMPRESS) { 3110 /* 3111 * We don't know how the data was compressed, so just try 3112 * every decompress function at every inflated blocksize. 3113 */ 3114 enum zio_compress c; 3115 void *pbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3116 void *lbuf2 = umem_alloc(SPA_MAXBLOCKSIZE, UMEM_NOFAIL); 3117 3118 bcopy(pbuf, pbuf2, psize); 3119 3120 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf + psize, 3121 SPA_MAXBLOCKSIZE - psize) == 0); 3122 3123 VERIFY(random_get_pseudo_bytes((uint8_t *)pbuf2 + psize, 3124 SPA_MAXBLOCKSIZE - psize) == 0); 3125 3126 for (lsize = SPA_MAXBLOCKSIZE; lsize > psize; 3127 lsize -= SPA_MINBLOCKSIZE) { 3128 for (c = 0; c < ZIO_COMPRESS_FUNCTIONS; c++) { 3129 if (zio_decompress_data(c, pbuf, lbuf, 3130 psize, lsize) == 0 && 3131 zio_decompress_data(c, pbuf2, lbuf2, 3132 psize, lsize) == 0 && 3133 bcmp(lbuf, lbuf2, lsize) == 0) 3134 break; 3135 } 3136 if (c != ZIO_COMPRESS_FUNCTIONS) 3137 break; 3138 lsize -= SPA_MINBLOCKSIZE; 3139 } 3140 3141 umem_free(pbuf2, SPA_MAXBLOCKSIZE); 3142 umem_free(lbuf2, SPA_MAXBLOCKSIZE); 3143 3144 if (lsize <= psize) { 3145 (void) printf("Decompress of %s failed\n", thing); 3146 goto out; 3147 } 3148 buf = lbuf; 3149 size = lsize; 3150 } else { 3151 buf = pbuf; 3152 size = psize; 3153 } 3154 3155 if (flags & ZDB_FLAG_PRINT_BLKPTR) 3156 zdb_print_blkptr((blkptr_t *)(void *) 3157 ((uintptr_t)buf + (uintptr_t)blkptr_offset), flags); 3158 else if (flags & ZDB_FLAG_RAW) 3159 zdb_dump_block_raw(buf, size, flags); 3160 else if (flags & ZDB_FLAG_INDIRECT) 3161 zdb_dump_indirect((blkptr_t *)buf, size / sizeof (blkptr_t), 3162 flags); 3163 else if (flags & ZDB_FLAG_GBH) 3164 zdb_dump_gbh(buf, flags); 3165 else 3166 zdb_dump_block(thing, buf, size, flags); 3167 3168 out: 3169 umem_free(pbuf, SPA_MAXBLOCKSIZE); 3170 umem_free(lbuf, SPA_MAXBLOCKSIZE); 3171 free(dup); 3172 } 3173 3174 static boolean_t 3175 pool_match(nvlist_t *cfg, char *tgt) 3176 { 3177 uint64_t v, guid = strtoull(tgt, NULL, 0); 3178 char *s; 3179 3180 if (guid != 0) { 3181 if (nvlist_lookup_uint64(cfg, ZPOOL_CONFIG_POOL_GUID, &v) == 0) 3182 return (v == guid); 3183 } else { 3184 if (nvlist_lookup_string(cfg, ZPOOL_CONFIG_POOL_NAME, &s) == 0) 3185 return (strcmp(s, tgt) == 0); 3186 } 3187 return (B_FALSE); 3188 } 3189 3190 static char * 3191 find_zpool(char **target, nvlist_t **configp, int dirc, char **dirv) 3192 { 3193 nvlist_t *pools; 3194 nvlist_t *match = NULL; 3195 char *name = NULL; 3196 char *sepp = NULL; 3197 char sep; 3198 int count = 0; 3199 importargs_t args = { 0 }; 3200 3201 args.paths = dirc; 3202 args.path = dirv; 3203 args.can_be_active = B_TRUE; 3204 3205 if ((sepp = strpbrk(*target, "/@")) != NULL) { 3206 sep = *sepp; 3207 *sepp = '\0'; 3208 } 3209 3210 pools = zpool_search_import(g_zfs, &args); 3211 3212 if (pools != NULL) { 3213 nvpair_t *elem = NULL; 3214 while ((elem = nvlist_next_nvpair(pools, elem)) != NULL) { 3215 verify(nvpair_value_nvlist(elem, configp) == 0); 3216 if (pool_match(*configp, *target)) { 3217 count++; 3218 if (match != NULL) { 3219 /* print previously found config */ 3220 if (name != NULL) { 3221 (void) printf("%s\n", name); 3222 dump_nvlist(match, 8); 3223 name = NULL; 3224 } 3225 (void) printf("%s\n", 3226 nvpair_name(elem)); 3227 dump_nvlist(*configp, 8); 3228 } else { 3229 match = *configp; 3230 name = nvpair_name(elem); 3231 } 3232 } 3233 } 3234 } 3235 if (count > 1) 3236 (void) fatal("\tMatched %d pools - use pool GUID " 3237 "instead of pool name or \n" 3238 "\tpool name part of a dataset name to select pool", count); 3239 3240 if (sepp) 3241 *sepp = sep; 3242 /* 3243 * If pool GUID was specified for pool id, replace it with pool name 3244 */ 3245 if (name && (strstr(*target, name) != *target)) { 3246 int sz = 1 + strlen(name) + ((sepp) ? strlen(sepp) : 0); 3247 3248 *target = umem_alloc(sz, UMEM_NOFAIL); 3249 (void) snprintf(*target, sz, "%s%s", name, sepp ? sepp : ""); 3250 } 3251 3252 *configp = name ? match : NULL; 3253 3254 return (name); 3255 } 3256 3257 int 3258 main(int argc, char **argv) 3259 { 3260 int i, c; 3261 struct rlimit rl = { 1024, 1024 }; 3262 spa_t *spa = NULL; 3263 objset_t *os = NULL; 3264 int dump_all = 1; 3265 int verbose = 0; 3266 int error = 0; 3267 char **searchdirs = NULL; 3268 int nsearch = 0; 3269 char *target; 3270 nvlist_t *policy = NULL; 3271 uint64_t max_txg = UINT64_MAX; 3272 int rewind = ZPOOL_NEVER_REWIND; 3273 3274 (void) setrlimit(RLIMIT_NOFILE, &rl); 3275 (void) enable_extended_FILE_stdio(-1, -1); 3276 3277 dprintf_setup(&argc, argv); 3278 3279 while ((c = getopt(argc, argv, "bcdhilmM:suCDRSAFLXevp:t:U:P")) != -1) { 3280 switch (c) { 3281 case 'b': 3282 case 'c': 3283 case 'd': 3284 case 'h': 3285 case 'i': 3286 case 'l': 3287 case 'm': 3288 case 's': 3289 case 'u': 3290 case 'C': 3291 case 'D': 3292 case 'R': 3293 case 'S': 3294 dump_opt[c]++; 3295 dump_all = 0; 3296 break; 3297 case 'A': 3298 case 'F': 3299 case 'L': 3300 case 'X': 3301 case 'e': 3302 case 'P': 3303 dump_opt[c]++; 3304 break; 3305 case 'v': 3306 verbose++; 3307 break; 3308 case 'M': 3309 max_inflight = strtoull(optarg, NULL, 0); 3310 if (max_inflight == 0) { 3311 (void) fprintf(stderr, "maximum number " 3312 "of inflight I/Os must be greater " 3313 "than 0\n"); 3314 usage(); 3315 } 3316 break; 3317 case 'p': 3318 if (searchdirs == NULL) { 3319 searchdirs = umem_alloc(sizeof (char *), 3320 UMEM_NOFAIL); 3321 } else { 3322 char **tmp = umem_alloc((nsearch + 1) * 3323 sizeof (char *), UMEM_NOFAIL); 3324 bcopy(searchdirs, tmp, nsearch * 3325 sizeof (char *)); 3326 umem_free(searchdirs, 3327 nsearch * sizeof (char *)); 3328 searchdirs = tmp; 3329 } 3330 searchdirs[nsearch++] = optarg; 3331 break; 3332 case 't': 3333 max_txg = strtoull(optarg, NULL, 0); 3334 if (max_txg < TXG_INITIAL) { 3335 (void) fprintf(stderr, "incorrect txg " 3336 "specified: %s\n", optarg); 3337 usage(); 3338 } 3339 break; 3340 case 'U': 3341 spa_config_path = optarg; 3342 break; 3343 default: 3344 usage(); 3345 break; 3346 } 3347 } 3348 3349 if (!dump_opt['e'] && searchdirs != NULL) { 3350 (void) fprintf(stderr, "-p option requires use of -e\n"); 3351 usage(); 3352 } 3353 3354 kernel_init(FREAD); 3355 g_zfs = libzfs_init(); 3356 ASSERT(g_zfs != NULL); 3357 3358 if (dump_all) 3359 verbose = MAX(verbose, 1); 3360 3361 for (c = 0; c < 256; c++) { 3362 if (dump_all && !strchr("elAFLRSXP", c)) 3363 dump_opt[c] = 1; 3364 if (dump_opt[c]) 3365 dump_opt[c] += verbose; 3366 } 3367 3368 aok = (dump_opt['A'] == 1) || (dump_opt['A'] > 2); 3369 zfs_recover = (dump_opt['A'] > 1); 3370 3371 argc -= optind; 3372 argv += optind; 3373 3374 if (argc < 2 && dump_opt['R']) 3375 usage(); 3376 if (argc < 1) { 3377 if (!dump_opt['e'] && dump_opt['C']) { 3378 dump_cachefile(spa_config_path); 3379 return (0); 3380 } 3381 usage(); 3382 } 3383 3384 if (dump_opt['l']) { 3385 dump_label(argv[0]); 3386 return (0); 3387 } 3388 3389 if (dump_opt['X'] || dump_opt['F']) 3390 rewind = ZPOOL_DO_REWIND | 3391 (dump_opt['X'] ? ZPOOL_EXTREME_REWIND : 0); 3392 3393 if (nvlist_alloc(&policy, NV_UNIQUE_NAME_TYPE, 0) != 0 || 3394 nvlist_add_uint64(policy, ZPOOL_REWIND_REQUEST_TXG, max_txg) != 0 || 3395 nvlist_add_uint32(policy, ZPOOL_REWIND_REQUEST, rewind) != 0) 3396 fatal("internal error: %s", strerror(ENOMEM)); 3397 3398 error = 0; 3399 target = argv[0]; 3400 3401 if (dump_opt['e']) { 3402 nvlist_t *cfg = NULL; 3403 char *name = find_zpool(&target, &cfg, nsearch, searchdirs); 3404 3405 error = ENOENT; 3406 if (name) { 3407 if (dump_opt['C'] > 1) { 3408 (void) printf("\nConfiguration for import:\n"); 3409 dump_nvlist(cfg, 8); 3410 } 3411 if (nvlist_add_nvlist(cfg, 3412 ZPOOL_REWIND_POLICY, policy) != 0) { 3413 fatal("can't open '%s': %s", 3414 target, strerror(ENOMEM)); 3415 } 3416 if ((error = spa_import(name, cfg, NULL, 3417 ZFS_IMPORT_MISSING_LOG)) != 0) { 3418 error = spa_import(name, cfg, NULL, 3419 ZFS_IMPORT_VERBATIM); 3420 } 3421 } 3422 } 3423 3424 if (error == 0) { 3425 if (strpbrk(target, "/@") == NULL || dump_opt['R']) { 3426 error = spa_open_rewind(target, &spa, FTAG, policy, 3427 NULL); 3428 if (error) { 3429 /* 3430 * If we're missing the log device then 3431 * try opening the pool after clearing the 3432 * log state. 3433 */ 3434 mutex_enter(&spa_namespace_lock); 3435 if ((spa = spa_lookup(target)) != NULL && 3436 spa->spa_log_state == SPA_LOG_MISSING) { 3437 spa->spa_log_state = SPA_LOG_CLEAR; 3438 error = 0; 3439 } 3440 mutex_exit(&spa_namespace_lock); 3441 3442 if (!error) { 3443 error = spa_open_rewind(target, &spa, 3444 FTAG, policy, NULL); 3445 } 3446 } 3447 } else { 3448 error = dmu_objset_own(target, DMU_OST_ANY, 3449 B_TRUE, FTAG, &os); 3450 } 3451 } 3452 nvlist_free(policy); 3453 3454 if (error) 3455 fatal("can't open '%s': %s", target, strerror(error)); 3456 3457 argv++; 3458 argc--; 3459 if (!dump_opt['R']) { 3460 if (argc > 0) { 3461 zopt_objects = argc; 3462 zopt_object = calloc(zopt_objects, sizeof (uint64_t)); 3463 for (i = 0; i < zopt_objects; i++) { 3464 errno = 0; 3465 zopt_object[i] = strtoull(argv[i], NULL, 0); 3466 if (zopt_object[i] == 0 && errno != 0) 3467 fatal("bad number %s: %s", 3468 argv[i], strerror(errno)); 3469 } 3470 } 3471 if (os != NULL) { 3472 dump_dir(os); 3473 } else if (zopt_objects > 0 && !dump_opt['m']) { 3474 dump_dir(spa->spa_meta_objset); 3475 } else { 3476 dump_zpool(spa); 3477 } 3478 } else { 3479 flagbits['b'] = ZDB_FLAG_PRINT_BLKPTR; 3480 flagbits['c'] = ZDB_FLAG_CHECKSUM; 3481 flagbits['d'] = ZDB_FLAG_DECOMPRESS; 3482 flagbits['e'] = ZDB_FLAG_BSWAP; 3483 flagbits['g'] = ZDB_FLAG_GBH; 3484 flagbits['i'] = ZDB_FLAG_INDIRECT; 3485 flagbits['p'] = ZDB_FLAG_PHYS; 3486 flagbits['r'] = ZDB_FLAG_RAW; 3487 3488 for (i = 0; i < argc; i++) 3489 zdb_read_block(argv[i], spa); 3490 } 3491 3492 (os != NULL) ? dmu_objset_disown(os, FTAG) : spa_close(spa, FTAG); 3493 3494 fuid_table_destroy(); 3495 sa_loaded = B_FALSE; 3496 3497 libzfs_fini(g_zfs); 3498 kernel_fini(); 3499 3500 return (0); 3501 } 3502