1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 2255da60b9SMark J Musante * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23beb56283SShampavman * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 24ba3132cfSJoe Stein * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 25fa9e4066Sahrens */ 26fa9e4066Sahrens 2755da60b9SMark J Musante /* Portions Copyright 2010 Robert Milkowski */ 2855da60b9SMark J Musante 29fa9e4066Sahrens #include <mdb/mdb_ctf.h> 30fa9e4066Sahrens #include <sys/zfs_context.h> 31fa9e4066Sahrens #include <sys/mdb_modapi.h> 32fa9e4066Sahrens #include <sys/dbuf.h> 33fa9e4066Sahrens #include <sys/dmu_objset.h> 34fa9e4066Sahrens #include <sys/dsl_dir.h> 35fa9e4066Sahrens #include <sys/dsl_pool.h> 36fa9e4066Sahrens #include <sys/metaslab_impl.h> 37fa9e4066Sahrens #include <sys/space_map.h> 38fa9e4066Sahrens #include <sys/list.h> 39fa9e4066Sahrens #include <sys/vdev_impl.h> 403f1f8012SMatthew Ahrens #include <sys/zap_leaf.h> 413f1f8012SMatthew Ahrens #include <sys/zap_impl.h> 429966ca11SMatthew Ahrens #include <ctype.h> 430a586ceaSMark Shellenbaum #include <sys/zfs_acl.h> 440a586ceaSMark Shellenbaum #include <sys/sa_impl.h> 45*dcbf3bd6SGeorge Wilson #include <sys/multilist.h> 46fa9e4066Sahrens 47fa9e4066Sahrens #ifdef _KERNEL 48fa9e4066Sahrens #define ZFS_OBJ_NAME "zfs" 49c55e05cbSMatthew Ahrens extern int64_t mdb_gethrtime(void); 50fa9e4066Sahrens #else 51fa9e4066Sahrens #define ZFS_OBJ_NAME "libzpool.so.1" 52fa9e4066Sahrens #endif 53fa9e4066Sahrens 5428e4da25SMatthew Ahrens #define ZFS_STRUCT "struct " ZFS_OBJ_NAME "`" 5528e4da25SMatthew Ahrens 56feef89cfSVictor Latushkin #ifndef _KERNEL 57feef89cfSVictor Latushkin int aok; 58feef89cfSVictor Latushkin #endif 59feef89cfSVictor Latushkin 602e4c9986SGeorge Wilson enum spa_flags { 612e4c9986SGeorge Wilson SPA_FLAG_CONFIG = 1 << 0, 622e4c9986SGeorge Wilson SPA_FLAG_VDEVS = 1 << 1, 632e4c9986SGeorge Wilson SPA_FLAG_ERRORS = 1 << 2, 642e4c9986SGeorge Wilson SPA_FLAG_METASLAB_GROUPS = 1 << 3, 652e4c9986SGeorge Wilson SPA_FLAG_METASLABS = 1 << 4, 662e4c9986SGeorge Wilson SPA_FLAG_HISTOGRAMS = 1 << 5 672e4c9986SGeorge Wilson }; 682e4c9986SGeorge Wilson 692e4c9986SGeorge Wilson #define SPA_FLAG_ALL_VDEV \ 702e4c9986SGeorge Wilson (SPA_FLAG_VDEVS | SPA_FLAG_ERRORS | SPA_FLAG_METASLAB_GROUPS | \ 712e4c9986SGeorge Wilson SPA_FLAG_METASLABS | SPA_FLAG_HISTOGRAMS) 722e4c9986SGeorge Wilson 73fa9e4066Sahrens static int 74fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 75fa9e4066Sahrens const char *member, int len, void *buf) 76fa9e4066Sahrens { 77fa9e4066Sahrens mdb_ctf_id_t id; 78fa9e4066Sahrens ulong_t off; 79fa9e4066Sahrens char name[64]; 80fa9e4066Sahrens 81fa9e4066Sahrens if (idp == NULL) { 82fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 83fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 84fa9e4066Sahrens return (DCMD_ERR); 85fa9e4066Sahrens } 86fa9e4066Sahrens idp = &id; 87fa9e4066Sahrens } else { 88fa9e4066Sahrens type = name; 89fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 90fa9e4066Sahrens } 91fa9e4066Sahrens 92fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 93fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 94fa9e4066Sahrens return (DCMD_ERR); 95fa9e4066Sahrens } 96fa9e4066Sahrens if (off % 8 != 0) { 97fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 98fa9e4066Sahrens member, type); 99fa9e4066Sahrens return (DCMD_ERR); 100fa9e4066Sahrens } 101fa9e4066Sahrens off /= 8; 102fa9e4066Sahrens 103fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 104fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 105fa9e4066Sahrens member, type, addr + off); 106fa9e4066Sahrens return (DCMD_ERR); 107fa9e4066Sahrens } 108fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 109fa9e4066Sahrens 110fa9e4066Sahrens return (0); 111fa9e4066Sahrens } 112fa9e4066Sahrens 11328e4da25SMatthew Ahrens #define GETMEMB(addr, structname, member, dest) \ 11428e4da25SMatthew Ahrens getmember(addr, ZFS_STRUCT structname, NULL, #member, \ 11528e4da25SMatthew Ahrens sizeof (dest), &(dest)) 116fa9e4066Sahrens 117fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 118fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 119fa9e4066Sahrens 1203f9d6ad7SLin Ling static boolean_t 1213f9d6ad7SLin Ling strisprint(const char *cp) 1223f9d6ad7SLin Ling { 1233f9d6ad7SLin Ling for (; *cp; cp++) { 1243f9d6ad7SLin Ling if (!isprint(*cp)) 1253f9d6ad7SLin Ling return (B_FALSE); 1263f9d6ad7SLin Ling } 1273f9d6ad7SLin Ling return (B_TRUE); 1283f9d6ad7SLin Ling } 1293f9d6ad7SLin Ling 1302e4c9986SGeorge Wilson #define NICENUM_BUFLEN 6 1312e4c9986SGeorge Wilson 1322e4c9986SGeorge Wilson static int 1332e4c9986SGeorge Wilson snprintfrac(char *buf, int len, 1342e4c9986SGeorge Wilson uint64_t numerator, uint64_t denom, int frac_digits) 1352e4c9986SGeorge Wilson { 1362e4c9986SGeorge Wilson int mul = 1; 1372e4c9986SGeorge Wilson int whole, frac, i; 1382e4c9986SGeorge Wilson 1392e4c9986SGeorge Wilson for (i = frac_digits; i; i--) 1402e4c9986SGeorge Wilson mul *= 10; 1412e4c9986SGeorge Wilson whole = numerator / denom; 1422e4c9986SGeorge Wilson frac = mul * numerator / denom - mul * whole; 1432e4c9986SGeorge Wilson return (mdb_snprintf(buf, len, "%u.%0*u", whole, frac_digits, frac)); 1442e4c9986SGeorge Wilson } 1452e4c9986SGeorge Wilson 1462e4c9986SGeorge Wilson static void 1472e4c9986SGeorge Wilson mdb_nicenum(uint64_t num, char *buf) 1482e4c9986SGeorge Wilson { 1492e4c9986SGeorge Wilson uint64_t n = num; 1502e4c9986SGeorge Wilson int index = 0; 1512e4c9986SGeorge Wilson char *u; 1522e4c9986SGeorge Wilson 1532e4c9986SGeorge Wilson while (n >= 1024) { 1542e4c9986SGeorge Wilson n = (n + (1024 / 2)) / 1024; /* Round up or down */ 1552e4c9986SGeorge Wilson index++; 1562e4c9986SGeorge Wilson } 1572e4c9986SGeorge Wilson 1582e4c9986SGeorge Wilson u = &" \0K\0M\0G\0T\0P\0E\0"[index*2]; 1592e4c9986SGeorge Wilson 1602e4c9986SGeorge Wilson if (index == 0) { 1612e4c9986SGeorge Wilson (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu", 1622e4c9986SGeorge Wilson (u_longlong_t)n); 1632e4c9986SGeorge Wilson } else if (n < 10 && (num & (num - 1)) != 0) { 1642e4c9986SGeorge Wilson (void) snprintfrac(buf, NICENUM_BUFLEN, 1652e4c9986SGeorge Wilson num, 1ULL << 10 * index, 2); 1662e4c9986SGeorge Wilson strcat(buf, u); 1672e4c9986SGeorge Wilson } else if (n < 100 && (num & (num - 1)) != 0) { 1682e4c9986SGeorge Wilson (void) snprintfrac(buf, NICENUM_BUFLEN, 1692e4c9986SGeorge Wilson num, 1ULL << 10 * index, 1); 1702e4c9986SGeorge Wilson strcat(buf, u); 1712e4c9986SGeorge Wilson } else { 1722e4c9986SGeorge Wilson (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu%s", 1732e4c9986SGeorge Wilson (u_longlong_t)n, u); 1742e4c9986SGeorge Wilson } 1752e4c9986SGeorge Wilson } 1762e4c9986SGeorge Wilson 177fa9e4066Sahrens static int verbose; 178fa9e4066Sahrens 179fa9e4066Sahrens static int 180fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 181fa9e4066Sahrens { 182fa9e4066Sahrens if (wsp->walk_addr == NULL) { 183fa9e4066Sahrens mdb_warn("must supply starting address\n"); 184fa9e4066Sahrens return (WALK_ERR); 185fa9e4066Sahrens } 186fa9e4066Sahrens 187fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 188fa9e4066Sahrens return (WALK_NEXT); 189fa9e4066Sahrens } 190fa9e4066Sahrens 191fa9e4066Sahrens static int 192fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 193fa9e4066Sahrens { 194fa9e4066Sahrens uint64_t entry; 195fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1968053a263Sck char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1978053a263Sck "INVALID", "INVALID", "INVALID", "INVALID" }; 198fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 199fa9e4066Sahrens 200fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 201fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 202fa9e4066Sahrens return (WALK_DONE); 203fa9e4066Sahrens } 204fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 205fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 206fa9e4066Sahrens 207fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 208fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 209fa9e4066Sahrens number, 210fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 211fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 212fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 213fa9e4066Sahrens } else { 214fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 215fa9e4066Sahrens "size=%06llx", number, 216fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 217fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 218fa9e4066Sahrens mapshift, 219fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 220fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 221fa9e4066Sahrens if (verbose) 222fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 223fa9e4066Sahrens mdb_printf("\n"); 224fa9e4066Sahrens } 225fa9e4066Sahrens return (WALK_NEXT); 226fa9e4066Sahrens } 227fa9e4066Sahrens 228fa9e4066Sahrens static int 22928e4da25SMatthew Ahrens mdb_dsl_dir_name(uintptr_t addr, char *buf) 230fa9e4066Sahrens { 231fa9e4066Sahrens static int gotid; 232fa9e4066Sahrens static mdb_ctf_id_t dd_id; 233fa9e4066Sahrens uintptr_t dd_parent; 2349adfa60dSMatthew Ahrens char dd_myname[ZFS_MAX_DATASET_NAME_LEN]; 235fa9e4066Sahrens 236fa9e4066Sahrens if (!gotid) { 23728e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "dsl_dir", 238fa9e4066Sahrens &dd_id) == -1) { 239fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 240fa9e4066Sahrens return (DCMD_ERR); 241fa9e4066Sahrens } 242fa9e4066Sahrens gotid = TRUE; 243fa9e4066Sahrens } 244fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 245fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 246fa9e4066Sahrens return (DCMD_ERR); 247fa9e4066Sahrens } 248fa9e4066Sahrens 249fa9e4066Sahrens if (dd_parent) { 25028e4da25SMatthew Ahrens if (mdb_dsl_dir_name(dd_parent, buf)) 251fa9e4066Sahrens return (DCMD_ERR); 252fa9e4066Sahrens strcat(buf, "/"); 253fa9e4066Sahrens } 254fa9e4066Sahrens 255fa9e4066Sahrens if (dd_myname[0]) 256fa9e4066Sahrens strcat(buf, dd_myname); 257fa9e4066Sahrens else 258fa9e4066Sahrens strcat(buf, "???"); 259fa9e4066Sahrens 260fa9e4066Sahrens return (0); 261fa9e4066Sahrens } 262fa9e4066Sahrens 263fa9e4066Sahrens static int 264fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 265fa9e4066Sahrens { 266fa9e4066Sahrens static int gotid; 2674223fc7cSMark Shellenbaum static mdb_ctf_id_t os_id, ds_id; 268fa9e4066Sahrens uintptr_t os_dsl_dataset; 2699adfa60dSMatthew Ahrens char ds_snapname[ZFS_MAX_DATASET_NAME_LEN]; 270fa9e4066Sahrens uintptr_t ds_dir; 271fa9e4066Sahrens 272fa9e4066Sahrens buf[0] = '\0'; 273fa9e4066Sahrens 274fa9e4066Sahrens if (!gotid) { 27528e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "objset", 2764223fc7cSMark Shellenbaum &os_id) == -1) { 2774223fc7cSMark Shellenbaum mdb_warn("couldn't find struct objset"); 278fa9e4066Sahrens return (DCMD_ERR); 279fa9e4066Sahrens } 28028e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "dsl_dataset", 281fa9e4066Sahrens &ds_id) == -1) { 282fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 283fa9e4066Sahrens return (DCMD_ERR); 284fa9e4066Sahrens } 285fa9e4066Sahrens 286fa9e4066Sahrens gotid = TRUE; 287fa9e4066Sahrens } 288fa9e4066Sahrens 2894223fc7cSMark Shellenbaum if (GETMEMBID(addr, &os_id, os_dsl_dataset, os_dsl_dataset)) 290fa9e4066Sahrens return (DCMD_ERR); 291fa9e4066Sahrens 292fa9e4066Sahrens if (os_dsl_dataset == 0) { 293fa9e4066Sahrens strcat(buf, "mos"); 294fa9e4066Sahrens return (0); 295fa9e4066Sahrens } 296fa9e4066Sahrens 297fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 298fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 299fa9e4066Sahrens return (DCMD_ERR); 300fa9e4066Sahrens } 301fa9e4066Sahrens 30228e4da25SMatthew Ahrens if (ds_dir && mdb_dsl_dir_name(ds_dir, buf)) 303fa9e4066Sahrens return (DCMD_ERR); 304fa9e4066Sahrens 305fa9e4066Sahrens if (ds_snapname[0]) { 306fa9e4066Sahrens strcat(buf, "@"); 307fa9e4066Sahrens strcat(buf, ds_snapname); 308fa9e4066Sahrens } 309fa9e4066Sahrens return (0); 310fa9e4066Sahrens } 311fa9e4066Sahrens 312fa9e4066Sahrens static void 313fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 314fa9e4066Sahrens const char *prefix) 315fa9e4066Sahrens { 316fa9e4066Sahrens const char *cp; 317fa9e4066Sahrens size_t len = strlen(prefix); 318fa9e4066Sahrens 319fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 320fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 321fa9e4066Sahrens cp += len; 322fa9e4066Sahrens (void) strncpy(out, cp, size); 323fa9e4066Sahrens } else { 324fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 325fa9e4066Sahrens } 326fa9e4066Sahrens } 327fa9e4066Sahrens 328614409b5Sahrens /* ARGSUSED */ 329614409b5Sahrens static int 330614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 331614409b5Sahrens { 332614409b5Sahrens /* 333614409b5Sahrens * This table can be approximately generated by running: 334614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 335614409b5Sahrens */ 336614409b5Sahrens static const char *params[] = { 337614409b5Sahrens "arc_reduce_dnlc_percent", 33869962b56SMatthew Ahrens "arc_lotsfree_percent", 33969962b56SMatthew Ahrens "zfs_dirty_data_max", 34069962b56SMatthew Ahrens "zfs_dirty_data_sync", 34169962b56SMatthew Ahrens "zfs_delay_max_ns", 34269962b56SMatthew Ahrens "zfs_delay_min_dirty_percent", 34369962b56SMatthew Ahrens "zfs_delay_scale", 34469962b56SMatthew Ahrens "zfs_vdev_max_active", 34569962b56SMatthew Ahrens "zfs_vdev_sync_read_min_active", 34669962b56SMatthew Ahrens "zfs_vdev_sync_read_max_active", 34769962b56SMatthew Ahrens "zfs_vdev_sync_write_min_active", 34869962b56SMatthew Ahrens "zfs_vdev_sync_write_max_active", 34969962b56SMatthew Ahrens "zfs_vdev_async_read_min_active", 35069962b56SMatthew Ahrens "zfs_vdev_async_read_max_active", 35169962b56SMatthew Ahrens "zfs_vdev_async_write_min_active", 35269962b56SMatthew Ahrens "zfs_vdev_async_write_max_active", 35369962b56SMatthew Ahrens "zfs_vdev_scrub_min_active", 35469962b56SMatthew Ahrens "zfs_vdev_scrub_max_active", 35569962b56SMatthew Ahrens "zfs_vdev_async_write_active_min_dirty_percent", 35669962b56SMatthew Ahrens "zfs_vdev_async_write_active_max_dirty_percent", 35769962b56SMatthew Ahrens "spa_asize_inflation", 358614409b5Sahrens "zfs_arc_max", 359614409b5Sahrens "zfs_arc_min", 36049e3519aSmaybee "arc_shrink_shift", 361614409b5Sahrens "zfs_mdcomp_disable", 362614409b5Sahrens "zfs_prefetch_disable", 363614409b5Sahrens "zfetch_max_streams", 364614409b5Sahrens "zfetch_min_sec_reap", 365614409b5Sahrens "zfetch_block_cap", 366614409b5Sahrens "zfetch_array_rd_sz", 367614409b5Sahrens "zfs_default_bs", 368614409b5Sahrens "zfs_default_ibs", 369614409b5Sahrens "metaslab_aliquot", 370614409b5Sahrens "reference_tracking_enable", 371614409b5Sahrens "reference_history", 372614409b5Sahrens "spa_max_replication_override", 373b24ab676SJeff Bonwick "spa_mode_global", 374614409b5Sahrens "zfs_flags", 3751ab7f2deSmaybee "zfs_txg_timeout", 376614409b5Sahrens "zfs_vdev_cache_max", 377614409b5Sahrens "zfs_vdev_cache_size", 378614409b5Sahrens "zfs_vdev_cache_bshift", 379614409b5Sahrens "vdev_mirror_shift", 380614409b5Sahrens "zfs_scrub_limit", 381b16da2e2SGeorge Wilson "zfs_no_scrub_io", 382b16da2e2SGeorge Wilson "zfs_no_scrub_prefetch", 383614409b5Sahrens "zfs_vdev_aggregation_limit", 384614409b5Sahrens "fzap_default_block_shift", 385614409b5Sahrens "zfs_immediate_write_sz", 386614409b5Sahrens "zfs_read_chunk_size", 387614409b5Sahrens "zfs_nocacheflush", 38855da60b9SMark J Musante "zil_replay_disable", 3891ab7f2deSmaybee "metaslab_gang_bang", 390d6e555bdSGeorge Wilson "metaslab_df_alloc_threshold", 391d6e555bdSGeorge Wilson "metaslab_df_free_pct", 392614409b5Sahrens "zio_injection_enabled", 393614409b5Sahrens "zvol_immediate_write_sz", 394614409b5Sahrens }; 395614409b5Sahrens 396b24ab676SJeff Bonwick for (int i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 397614409b5Sahrens int sz; 398614409b5Sahrens uint64_t val64; 399614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 400614409b5Sahrens 401614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 402614409b5Sahrens if (sz == 4) { 403614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 404614409b5Sahrens } else if (sz == 8) { 405614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 406614409b5Sahrens } else { 407614409b5Sahrens mdb_warn("variable %s not found", params[i]); 408614409b5Sahrens } 409614409b5Sahrens } 410614409b5Sahrens 411614409b5Sahrens return (DCMD_OK); 412614409b5Sahrens } 413614409b5Sahrens 414fa9e4066Sahrens /* ARGSUSED */ 415fa9e4066Sahrens static int 416fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 417fa9e4066Sahrens { 418b24ab676SJeff Bonwick mdb_ctf_id_t type_enum, checksum_enum, compress_enum; 419b24ab676SJeff Bonwick char type[80], checksum[80], compress[80]; 420b24ab676SJeff Bonwick blkptr_t blk, *bp = &blk; 421b24ab676SJeff Bonwick char buf[BP_SPRINTF_LEN]; 422fa9e4066Sahrens 423b24ab676SJeff Bonwick if (mdb_vread(&blk, sizeof (blkptr_t), addr) == -1) { 424fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 425fa9e4066Sahrens return (DCMD_ERR); 426fa9e4066Sahrens } 427fa9e4066Sahrens 428b24ab676SJeff Bonwick if (mdb_ctf_lookup_by_name("enum dmu_object_type", &type_enum) == -1 || 429b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_checksum", &checksum_enum) == -1 || 430b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_compress", &compress_enum) == -1) { 431b24ab676SJeff Bonwick mdb_warn("Could not find blkptr enumerated types"); 432fa9e4066Sahrens return (DCMD_ERR); 433fa9e4066Sahrens } 434fa9e4066Sahrens 435b24ab676SJeff Bonwick enum_lookup(type, sizeof (type), type_enum, 436b24ab676SJeff Bonwick BP_GET_TYPE(bp), "DMU_OT_"); 437b24ab676SJeff Bonwick enum_lookup(checksum, sizeof (checksum), checksum_enum, 438b24ab676SJeff Bonwick BP_GET_CHECKSUM(bp), "ZIO_CHECKSUM_"); 439b24ab676SJeff Bonwick enum_lookup(compress, sizeof (compress), compress_enum, 440b24ab676SJeff Bonwick BP_GET_COMPRESS(bp), "ZIO_COMPRESS_"); 441fa9e4066Sahrens 44243466aaeSMax Grossman SNPRINTF_BLKPTR(mdb_snprintf, '\n', buf, sizeof (buf), bp, type, 44343466aaeSMax Grossman checksum, compress); 444fa9e4066Sahrens 445b24ab676SJeff Bonwick mdb_printf("%s\n", buf); 446fa9e4066Sahrens 447fa9e4066Sahrens return (DCMD_OK); 448fa9e4066Sahrens } 449fa9e4066Sahrens 45028e4da25SMatthew Ahrens typedef struct mdb_dmu_buf_impl { 45128e4da25SMatthew Ahrens struct { 45228e4da25SMatthew Ahrens uint64_t db_object; 4532515f5d4SJustin T. Gibbs uintptr_t db_data; 45428e4da25SMatthew Ahrens } db; 455d5ee8a13SMatthew Ahrens uintptr_t db_objset; 45628e4da25SMatthew Ahrens uint64_t db_level; 45728e4da25SMatthew Ahrens uint64_t db_blkid; 45828e4da25SMatthew Ahrens struct { 45928e4da25SMatthew Ahrens uint64_t rc_count; 46028e4da25SMatthew Ahrens } db_holds; 46128e4da25SMatthew Ahrens } mdb_dmu_buf_impl_t; 46228e4da25SMatthew Ahrens 463fa9e4066Sahrens /* ARGSUSED */ 464fa9e4066Sahrens static int 465fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 466fa9e4066Sahrens { 46728e4da25SMatthew Ahrens mdb_dmu_buf_impl_t db; 468fa9e4066Sahrens char objectname[32]; 469fa9e4066Sahrens char blkidname[32]; 4709adfa60dSMatthew Ahrens char path[ZFS_MAX_DATASET_NAME_LEN]; 471ba3132cfSJoe Stein int ptr_width = (int)(sizeof (void *)) * 2; 472fa9e4066Sahrens 47328e4da25SMatthew Ahrens if (DCMD_HDRSPEC(flags)) 474ba3132cfSJoe Stein mdb_printf("%*s %8s %3s %9s %5s %s\n", 475ba3132cfSJoe Stein ptr_width, "addr", "object", "lvl", "blkid", "holds", "os"); 476fa9e4066Sahrens 47728e4da25SMatthew Ahrens if (mdb_ctf_vread(&db, ZFS_STRUCT "dmu_buf_impl", "mdb_dmu_buf_impl_t", 47828e4da25SMatthew Ahrens addr, 0) == -1) 479fa9e4066Sahrens return (DCMD_ERR); 480fa9e4066Sahrens 48128e4da25SMatthew Ahrens if (db.db.db_object == DMU_META_DNODE_OBJECT) 482fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 483fa9e4066Sahrens else 484fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 48528e4da25SMatthew Ahrens (u_longlong_t)db.db.db_object); 486fa9e4066Sahrens 48728e4da25SMatthew Ahrens if (db.db_blkid == DMU_BONUS_BLKID) 488fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 489fa9e4066Sahrens else 490fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 49128e4da25SMatthew Ahrens (u_longlong_t)db.db_blkid); 492fa9e4066Sahrens 493d5ee8a13SMatthew Ahrens if (objset_name(db.db_objset, path)) { 49428e4da25SMatthew Ahrens return (DCMD_ERR); 495fa9e4066Sahrens } 496fa9e4066Sahrens 497ba3132cfSJoe Stein mdb_printf("%*p %8s %3u %9s %5llu %s\n", ptr_width, addr, 49828e4da25SMatthew Ahrens objectname, (int)db.db_level, blkidname, 49928e4da25SMatthew Ahrens db.db_holds.rc_count, path); 500fa9e4066Sahrens 501fa9e4066Sahrens return (DCMD_OK); 502fa9e4066Sahrens } 503fa9e4066Sahrens 504fa9e4066Sahrens /* ARGSUSED */ 505fa9e4066Sahrens static int 506fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 507fa9e4066Sahrens { 508fa9e4066Sahrens #define HISTOSZ 32 509fa9e4066Sahrens uintptr_t dbp; 510fa9e4066Sahrens dmu_buf_impl_t db; 511fa9e4066Sahrens dbuf_hash_table_t ht; 512fa9e4066Sahrens uint64_t bucket, ndbufs; 513fa9e4066Sahrens uint64_t histo[HISTOSZ]; 514fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 515fa9e4066Sahrens int i, maxidx; 516fa9e4066Sahrens 517fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 518fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 519fa9e4066Sahrens return (DCMD_ERR); 520fa9e4066Sahrens } 521fa9e4066Sahrens 522fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 523fa9e4066Sahrens histo[i] = 0; 524fa9e4066Sahrens histo2[i] = 0; 525fa9e4066Sahrens } 526fa9e4066Sahrens 527fa9e4066Sahrens ndbufs = 0; 528fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 529fa9e4066Sahrens int len; 530fa9e4066Sahrens 531fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 532fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 533fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 534fa9e4066Sahrens bucket, ht.hash_table+bucket); 535fa9e4066Sahrens return (DCMD_ERR); 536fa9e4066Sahrens } 537fa9e4066Sahrens 538fa9e4066Sahrens len = 0; 539fa9e4066Sahrens while (dbp != 0) { 540fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 541fa9e4066Sahrens dbp) == -1) { 542fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 543fa9e4066Sahrens return (DCMD_ERR); 544fa9e4066Sahrens } 545fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 546fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 547fa9e4066Sahrens histo2[i]++; 548fa9e4066Sahrens len++; 549fa9e4066Sahrens ndbufs++; 550fa9e4066Sahrens } 551fa9e4066Sahrens 552fa9e4066Sahrens if (len >= HISTOSZ) 553fa9e4066Sahrens len = HISTOSZ-1; 554fa9e4066Sahrens histo[len]++; 555fa9e4066Sahrens } 556fa9e4066Sahrens 557fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 558fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 559fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 560fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 561fa9e4066Sahrens 562fa9e4066Sahrens mdb_printf("\n"); 563fa9e4066Sahrens maxidx = 0; 564fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 565fa9e4066Sahrens if (histo[i] > 0) 566fa9e4066Sahrens maxidx = i; 567fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 568fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 569fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 570fa9e4066Sahrens 571fa9e4066Sahrens mdb_printf("\n"); 572fa9e4066Sahrens maxidx = 0; 573fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 574fa9e4066Sahrens if (histo2[i] > 0) 575fa9e4066Sahrens maxidx = i; 576fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 577fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 578fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 579fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 580fa9e4066Sahrens 581fa9e4066Sahrens 582fa9e4066Sahrens return (DCMD_OK); 583fa9e4066Sahrens } 584fa9e4066Sahrens 5853f1f8012SMatthew Ahrens #define CHAIN_END 0xffff 5863f1f8012SMatthew Ahrens /* 5873f1f8012SMatthew Ahrens * ::zap_leaf [-v] 5883f1f8012SMatthew Ahrens * 5893f1f8012SMatthew Ahrens * Print a zap_leaf_phys_t, assumed to be 16k 5903f1f8012SMatthew Ahrens */ 5913f1f8012SMatthew Ahrens /* ARGSUSED */ 5923f1f8012SMatthew Ahrens static int 5933f1f8012SMatthew Ahrens zap_leaf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 5943f1f8012SMatthew Ahrens { 5953f1f8012SMatthew Ahrens char buf[16*1024]; 5963f1f8012SMatthew Ahrens int verbose = B_FALSE; 5973f1f8012SMatthew Ahrens int four = B_FALSE; 598c1379625SJustin T. Gibbs dmu_buf_t l_dbuf; 5993f1f8012SMatthew Ahrens zap_leaf_t l; 6003f1f8012SMatthew Ahrens zap_leaf_phys_t *zlp = (void *)buf; 6013f1f8012SMatthew Ahrens int i; 6023f1f8012SMatthew Ahrens 6033f1f8012SMatthew Ahrens if (mdb_getopts(argc, argv, 6043f1f8012SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 6053f1f8012SMatthew Ahrens '4', MDB_OPT_SETBITS, TRUE, &four, 6063f1f8012SMatthew Ahrens NULL) != argc) 6073f1f8012SMatthew Ahrens return (DCMD_USAGE); 6083f1f8012SMatthew Ahrens 609c1379625SJustin T. Gibbs l_dbuf.db_data = zlp; 610c1379625SJustin T. Gibbs l.l_dbuf = &l_dbuf; 6113f1f8012SMatthew Ahrens l.l_bs = 14; /* assume 16k blocks */ 6123f1f8012SMatthew Ahrens if (four) 6133f1f8012SMatthew Ahrens l.l_bs = 12; 6143f1f8012SMatthew Ahrens 6153f1f8012SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) { 6163f1f8012SMatthew Ahrens return (DCMD_USAGE); 6173f1f8012SMatthew Ahrens } 6183f1f8012SMatthew Ahrens 6193f1f8012SMatthew Ahrens if (mdb_vread(buf, sizeof (buf), addr) == -1) { 6203f1f8012SMatthew Ahrens mdb_warn("failed to read zap_leaf_phys_t at %p", addr); 6213f1f8012SMatthew Ahrens return (DCMD_ERR); 6223f1f8012SMatthew Ahrens } 6233f1f8012SMatthew Ahrens 6243f1f8012SMatthew Ahrens if (zlp->l_hdr.lh_block_type != ZBT_LEAF || 6253f1f8012SMatthew Ahrens zlp->l_hdr.lh_magic != ZAP_LEAF_MAGIC) { 6263f1f8012SMatthew Ahrens mdb_warn("This does not appear to be a zap_leaf_phys_t"); 6273f1f8012SMatthew Ahrens return (DCMD_ERR); 6283f1f8012SMatthew Ahrens } 6293f1f8012SMatthew Ahrens 6303f1f8012SMatthew Ahrens mdb_printf("zap_leaf_phys_t at %p:\n", addr); 6313f1f8012SMatthew Ahrens mdb_printf(" lh_prefix_len = %u\n", zlp->l_hdr.lh_prefix_len); 6323f1f8012SMatthew Ahrens mdb_printf(" lh_prefix = %llx\n", zlp->l_hdr.lh_prefix); 6333f1f8012SMatthew Ahrens mdb_printf(" lh_nentries = %u\n", zlp->l_hdr.lh_nentries); 6343f1f8012SMatthew Ahrens mdb_printf(" lh_nfree = %u\n", zlp->l_hdr.lh_nfree, 6353f1f8012SMatthew Ahrens zlp->l_hdr.lh_nfree * 100 / (ZAP_LEAF_NUMCHUNKS(&l))); 6363f1f8012SMatthew Ahrens mdb_printf(" lh_freelist = %u\n", zlp->l_hdr.lh_freelist); 6373f1f8012SMatthew Ahrens mdb_printf(" lh_flags = %x (%s)\n", zlp->l_hdr.lh_flags, 6383f1f8012SMatthew Ahrens zlp->l_hdr.lh_flags & ZLF_ENTRIES_CDSORTED ? 6393f1f8012SMatthew Ahrens "ENTRIES_CDSORTED" : ""); 6403f1f8012SMatthew Ahrens 6413f1f8012SMatthew Ahrens if (verbose) { 6423f1f8012SMatthew Ahrens mdb_printf(" hash table:\n"); 6433f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_HASH_NUMENTRIES(&l); i++) { 6443f1f8012SMatthew Ahrens if (zlp->l_hash[i] != CHAIN_END) 6453f1f8012SMatthew Ahrens mdb_printf(" %u: %u\n", i, zlp->l_hash[i]); 6463f1f8012SMatthew Ahrens } 6473f1f8012SMatthew Ahrens } 6483f1f8012SMatthew Ahrens 6493f1f8012SMatthew Ahrens mdb_printf(" chunks:\n"); 6503f1f8012SMatthew Ahrens for (i = 0; i < ZAP_LEAF_NUMCHUNKS(&l); i++) { 6513f1f8012SMatthew Ahrens /* LINTED: alignment */ 6523f1f8012SMatthew Ahrens zap_leaf_chunk_t *zlc = &ZAP_LEAF_CHUNK(&l, i); 6533f1f8012SMatthew Ahrens switch (zlc->l_entry.le_type) { 6543f1f8012SMatthew Ahrens case ZAP_CHUNK_FREE: 6553f1f8012SMatthew Ahrens if (verbose) { 6563f1f8012SMatthew Ahrens mdb_printf(" %u: free; lf_next = %u\n", 6573f1f8012SMatthew Ahrens i, zlc->l_free.lf_next); 6583f1f8012SMatthew Ahrens } 6593f1f8012SMatthew Ahrens break; 6603f1f8012SMatthew Ahrens case ZAP_CHUNK_ENTRY: 6613f1f8012SMatthew Ahrens mdb_printf(" %u: entry\n", i); 6623f1f8012SMatthew Ahrens if (verbose) { 6633f1f8012SMatthew Ahrens mdb_printf(" le_next = %u\n", 6643f1f8012SMatthew Ahrens zlc->l_entry.le_next); 6653f1f8012SMatthew Ahrens } 6663f1f8012SMatthew Ahrens mdb_printf(" le_name_chunk = %u\n", 6673f1f8012SMatthew Ahrens zlc->l_entry.le_name_chunk); 6683f1f8012SMatthew Ahrens mdb_printf(" le_name_numints = %u\n", 6693f1f8012SMatthew Ahrens zlc->l_entry.le_name_numints); 6703f1f8012SMatthew Ahrens mdb_printf(" le_value_chunk = %u\n", 6713f1f8012SMatthew Ahrens zlc->l_entry.le_value_chunk); 6723f1f8012SMatthew Ahrens mdb_printf(" le_value_intlen = %u\n", 6733f1f8012SMatthew Ahrens zlc->l_entry.le_value_intlen); 6743f1f8012SMatthew Ahrens mdb_printf(" le_value_numints = %u\n", 6753f1f8012SMatthew Ahrens zlc->l_entry.le_value_numints); 6763f1f8012SMatthew Ahrens mdb_printf(" le_cd = %u\n", 6773f1f8012SMatthew Ahrens zlc->l_entry.le_cd); 6783f1f8012SMatthew Ahrens mdb_printf(" le_hash = %llx\n", 6793f1f8012SMatthew Ahrens zlc->l_entry.le_hash); 6803f1f8012SMatthew Ahrens break; 6813f1f8012SMatthew Ahrens case ZAP_CHUNK_ARRAY: 6823f9d6ad7SLin Ling mdb_printf(" %u: array", i); 6833f9d6ad7SLin Ling if (strisprint((char *)zlc->l_array.la_array)) 6843f9d6ad7SLin Ling mdb_printf(" \"%s\"", zlc->l_array.la_array); 6853f9d6ad7SLin Ling mdb_printf("\n"); 6863f1f8012SMatthew Ahrens if (verbose) { 6873f1f8012SMatthew Ahrens int j; 6883f1f8012SMatthew Ahrens mdb_printf(" "); 6893f1f8012SMatthew Ahrens for (j = 0; j < ZAP_LEAF_ARRAY_BYTES; j++) { 6903f1f8012SMatthew Ahrens mdb_printf("%02x ", 6913f1f8012SMatthew Ahrens zlc->l_array.la_array[j]); 6923f1f8012SMatthew Ahrens } 6933f1f8012SMatthew Ahrens mdb_printf("\n"); 6943f1f8012SMatthew Ahrens } 6953f1f8012SMatthew Ahrens if (zlc->l_array.la_next != CHAIN_END) { 6963f1f8012SMatthew Ahrens mdb_printf(" lf_next = %u\n", 6973f1f8012SMatthew Ahrens zlc->l_array.la_next); 6983f1f8012SMatthew Ahrens } 6993f1f8012SMatthew Ahrens break; 7003f1f8012SMatthew Ahrens default: 7013f1f8012SMatthew Ahrens mdb_printf(" %u: undefined type %u\n", 7023f1f8012SMatthew Ahrens zlc->l_entry.le_type); 7033f1f8012SMatthew Ahrens } 7043f1f8012SMatthew Ahrens } 7053f1f8012SMatthew Ahrens 7063f1f8012SMatthew Ahrens return (DCMD_OK); 7073f1f8012SMatthew Ahrens } 7083f1f8012SMatthew Ahrens 709fa9e4066Sahrens typedef struct dbufs_data { 710fa9e4066Sahrens mdb_ctf_id_t id; 711fa9e4066Sahrens uint64_t objset; 712fa9e4066Sahrens uint64_t object; 713fa9e4066Sahrens uint64_t level; 714fa9e4066Sahrens uint64_t blkid; 715fa9e4066Sahrens char *osname; 716fa9e4066Sahrens } dbufs_data_t; 717fa9e4066Sahrens 718fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 719fa9e4066Sahrens 720fa9e4066Sahrens /* ARGSUSED */ 721fa9e4066Sahrens static int 722fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 723fa9e4066Sahrens { 724fa9e4066Sahrens dbufs_data_t *data = arg; 725fa9e4066Sahrens uintptr_t objset; 726fa9e4066Sahrens dmu_buf_t db; 727fa9e4066Sahrens uint8_t level; 728fa9e4066Sahrens uint64_t blkid; 7299adfa60dSMatthew Ahrens char osname[ZFS_MAX_DATASET_NAME_LEN]; 730fa9e4066Sahrens 731fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 732fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 733fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 734fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 735fa9e4066Sahrens return (WALK_ERR); 736fa9e4066Sahrens } 737fa9e4066Sahrens 738fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 739fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 740ccae0b50Seschrock strcmp(data->osname, osname) == 0)) && 741fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 742fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 743fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 744fa9e4066Sahrens mdb_printf("%#lr\n", addr); 745fa9e4066Sahrens } 746fa9e4066Sahrens return (WALK_NEXT); 747fa9e4066Sahrens } 748fa9e4066Sahrens 749fa9e4066Sahrens /* ARGSUSED */ 750fa9e4066Sahrens static int 751fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 752fa9e4066Sahrens { 753fa9e4066Sahrens dbufs_data_t data; 754fa9e4066Sahrens char *object = NULL; 755fa9e4066Sahrens char *blkid = NULL; 756fa9e4066Sahrens 757fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 758fa9e4066Sahrens data.osname = NULL; 759fa9e4066Sahrens 760fa9e4066Sahrens if (mdb_getopts(argc, argv, 761fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 762fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 763fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 764fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 765fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 766fa9e4066Sahrens return (DCMD_USAGE); 767fa9e4066Sahrens } 768fa9e4066Sahrens 769fa9e4066Sahrens if (object) { 770fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 771fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 772fa9e4066Sahrens } else { 773fa9e4066Sahrens data.object = mdb_strtoull(object); 774fa9e4066Sahrens } 775fa9e4066Sahrens } 776fa9e4066Sahrens 777fa9e4066Sahrens if (blkid) { 778fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 7790a586ceaSMark Shellenbaum data.blkid = DMU_BONUS_BLKID; 780fa9e4066Sahrens } else { 781fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 782fa9e4066Sahrens } 783fa9e4066Sahrens } 784fa9e4066Sahrens 78528e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "dmu_buf_impl", &data.id) == -1) { 786fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 787fa9e4066Sahrens return (DCMD_ERR); 788fa9e4066Sahrens } 789fa9e4066Sahrens 7905f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 791fa9e4066Sahrens mdb_warn("can't walk dbufs"); 792fa9e4066Sahrens return (DCMD_ERR); 793fa9e4066Sahrens } 794fa9e4066Sahrens 795fa9e4066Sahrens return (DCMD_OK); 796fa9e4066Sahrens } 797fa9e4066Sahrens 798fa9e4066Sahrens typedef struct abuf_find_data { 799fa9e4066Sahrens dva_t dva; 800fa9e4066Sahrens mdb_ctf_id_t id; 801fa9e4066Sahrens } abuf_find_data_t; 802fa9e4066Sahrens 803fa9e4066Sahrens /* ARGSUSED */ 804fa9e4066Sahrens static int 805fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 806fa9e4066Sahrens { 807fa9e4066Sahrens abuf_find_data_t *data = arg; 808fa9e4066Sahrens dva_t dva; 809fa9e4066Sahrens 810fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 811fa9e4066Sahrens return (WALK_ERR); 812fa9e4066Sahrens } 813fa9e4066Sahrens 814fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 815fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 816fa9e4066Sahrens mdb_printf("%#lr\n", addr); 817fa9e4066Sahrens } 818fa9e4066Sahrens return (WALK_NEXT); 819fa9e4066Sahrens } 820fa9e4066Sahrens 821fa9e4066Sahrens /* ARGSUSED */ 822fa9e4066Sahrens static int 823fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 824fa9e4066Sahrens { 825fa9e4066Sahrens abuf_find_data_t data; 826fa9e4066Sahrens GElf_Sym sym; 827fa9e4066Sahrens int i; 828fa9e4066Sahrens const char *syms[] = { 829a2eea2e1Sahrens "ARC_mru", 830a2eea2e1Sahrens "ARC_mru_ghost", 831a2eea2e1Sahrens "ARC_mfu", 832a2eea2e1Sahrens "ARC_mfu_ghost", 833fa9e4066Sahrens }; 834fa9e4066Sahrens 835fa9e4066Sahrens if (argc != 2) 836fa9e4066Sahrens return (DCMD_USAGE); 837fa9e4066Sahrens 838fa9e4066Sahrens for (i = 0; i < 2; i ++) { 839fa9e4066Sahrens switch (argv[i].a_type) { 840fa9e4066Sahrens case MDB_TYPE_STRING: 841fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 842fa9e4066Sahrens break; 843fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 844fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 845fa9e4066Sahrens break; 846fa9e4066Sahrens default: 847fa9e4066Sahrens return (DCMD_USAGE); 848fa9e4066Sahrens } 849fa9e4066Sahrens } 850fa9e4066Sahrens 85128e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "arc_buf_hdr", &data.id) == -1) { 852fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 853fa9e4066Sahrens return (DCMD_ERR); 854fa9e4066Sahrens } 855fa9e4066Sahrens 856fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 85722ce0148SMatthew Ahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, syms[i], &sym)) { 858fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 859fa9e4066Sahrens return (DCMD_ERR); 860fa9e4066Sahrens } 861fa9e4066Sahrens 862fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 863fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 864fa9e4066Sahrens return (DCMD_ERR); 865fa9e4066Sahrens } 866fa9e4066Sahrens } 867fa9e4066Sahrens 868fa9e4066Sahrens return (DCMD_OK); 869fa9e4066Sahrens } 870fa9e4066Sahrens 87128e4da25SMatthew Ahrens 87228e4da25SMatthew Ahrens typedef struct dbgmsg_arg { 87328e4da25SMatthew Ahrens boolean_t da_verbose; 87428e4da25SMatthew Ahrens boolean_t da_address; 87528e4da25SMatthew Ahrens } dbgmsg_arg_t; 87628e4da25SMatthew Ahrens 8773f9d6ad7SLin Ling /* ARGSUSED */ 8783f9d6ad7SLin Ling static int 8793f9d6ad7SLin Ling dbgmsg_cb(uintptr_t addr, const void *unknown, void *arg) 8803f9d6ad7SLin Ling { 8813f9d6ad7SLin Ling static mdb_ctf_id_t id; 8823f9d6ad7SLin Ling static boolean_t gotid; 8833f9d6ad7SLin Ling static ulong_t off; 8843f9d6ad7SLin Ling 88528e4da25SMatthew Ahrens dbgmsg_arg_t *da = arg; 8863f9d6ad7SLin Ling time_t timestamp; 8873f9d6ad7SLin Ling char buf[1024]; 8883f9d6ad7SLin Ling 8893f9d6ad7SLin Ling if (!gotid) { 89028e4da25SMatthew Ahrens if (mdb_ctf_lookup_by_name(ZFS_STRUCT "zfs_dbgmsg", &id) == 89128e4da25SMatthew Ahrens -1) { 8923f9d6ad7SLin Ling mdb_warn("couldn't find struct zfs_dbgmsg"); 8933f9d6ad7SLin Ling return (WALK_ERR); 8943f9d6ad7SLin Ling } 8953f9d6ad7SLin Ling gotid = TRUE; 8963f9d6ad7SLin Ling if (mdb_ctf_offsetof(id, "zdm_msg", &off) == -1) { 8973f9d6ad7SLin Ling mdb_warn("couldn't find zdm_msg"); 8983f9d6ad7SLin Ling return (WALK_ERR); 8993f9d6ad7SLin Ling } 9003f9d6ad7SLin Ling off /= 8; 9013f9d6ad7SLin Ling } 9023f9d6ad7SLin Ling 9033f9d6ad7SLin Ling 9043f9d6ad7SLin Ling if (GETMEMBID(addr, &id, zdm_timestamp, timestamp)) { 9053f9d6ad7SLin Ling return (WALK_ERR); 9063f9d6ad7SLin Ling } 9073f9d6ad7SLin Ling 9083f9d6ad7SLin Ling if (mdb_readstr(buf, sizeof (buf), addr + off) == -1) { 9093f9d6ad7SLin Ling mdb_warn("failed to read zdm_msg at %p\n", addr + off); 9103f9d6ad7SLin Ling return (DCMD_ERR); 9113f9d6ad7SLin Ling } 9123f9d6ad7SLin Ling 91328e4da25SMatthew Ahrens if (da->da_address) 91428e4da25SMatthew Ahrens mdb_printf("%p ", addr); 91528e4da25SMatthew Ahrens if (da->da_verbose) 9163f9d6ad7SLin Ling mdb_printf("%Y ", timestamp); 9173f9d6ad7SLin Ling 9183f9d6ad7SLin Ling mdb_printf("%s\n", buf); 9193f9d6ad7SLin Ling 92028e4da25SMatthew Ahrens if (da->da_verbose) 9213f9d6ad7SLin Ling (void) mdb_call_dcmd("whatis", addr, DCMD_ADDRSPEC, 0, NULL); 9223f9d6ad7SLin Ling 9233f9d6ad7SLin Ling return (WALK_NEXT); 9243f9d6ad7SLin Ling } 9253f9d6ad7SLin Ling 9263f9d6ad7SLin Ling /* ARGSUSED */ 9273f9d6ad7SLin Ling static int 9283f9d6ad7SLin Ling dbgmsg(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 9293f9d6ad7SLin Ling { 9303f9d6ad7SLin Ling GElf_Sym sym; 93128e4da25SMatthew Ahrens dbgmsg_arg_t da = { 0 }; 9323f9d6ad7SLin Ling 9333f9d6ad7SLin Ling if (mdb_getopts(argc, argv, 93428e4da25SMatthew Ahrens 'v', MDB_OPT_SETBITS, B_TRUE, &da.da_verbose, 93528e4da25SMatthew Ahrens 'a', MDB_OPT_SETBITS, B_TRUE, &da.da_address, 9363f9d6ad7SLin Ling NULL) != argc) 9373f9d6ad7SLin Ling return (DCMD_USAGE); 9383f9d6ad7SLin Ling 9393b2aab18SMatthew Ahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "zfs_dbgmsgs", &sym)) { 9403f9d6ad7SLin Ling mdb_warn("can't find zfs_dbgmsgs"); 9413f9d6ad7SLin Ling return (DCMD_ERR); 9423f9d6ad7SLin Ling } 9433f9d6ad7SLin Ling 94428e4da25SMatthew Ahrens if (mdb_pwalk("list", dbgmsg_cb, &da, sym.st_value) != 0) { 9453f9d6ad7SLin Ling mdb_warn("can't walk zfs_dbgmsgs"); 9463f9d6ad7SLin Ling return (DCMD_ERR); 9473f9d6ad7SLin Ling } 9483f9d6ad7SLin Ling 9493f9d6ad7SLin Ling return (DCMD_OK); 9503f9d6ad7SLin Ling } 9513f9d6ad7SLin Ling 95244cb6abcSbmc /*ARGSUSED*/ 95344cb6abcSbmc static int 95444cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 95544cb6abcSbmc { 95644cb6abcSbmc kstat_named_t *stats; 95744cb6abcSbmc GElf_Sym sym; 95891ebeef5Sahrens int nstats, i; 95944cb6abcSbmc uint_t opt_a = FALSE; 96091ebeef5Sahrens uint_t opt_b = FALSE; 96191ebeef5Sahrens uint_t shift = 0; 96291ebeef5Sahrens const char *suffix; 96344cb6abcSbmc 96491ebeef5Sahrens static const char *bytestats[] = { 9659253d63dSGeorge Wilson "p", "c", "c_min", "c_max", "size", "duplicate_buffers_size", 96620128a08SGeorge Wilson "arc_meta_used", "arc_meta_limit", "arc_meta_max", 9674076b1bfSPrakash Surya "arc_meta_min", "hdr_size", "data_size", "metadata_size", 9684076b1bfSPrakash Surya "other_size", "anon_size", "anon_evictable_data", 9694076b1bfSPrakash Surya "anon_evictable_metadata", "mru_size", "mru_evictable_data", 9704076b1bfSPrakash Surya "mru_evictable_metadata", "mru_ghost_size", 9714076b1bfSPrakash Surya "mru_ghost_evictable_data", "mru_ghost_evictable_metadata", 9724076b1bfSPrakash Surya "mfu_size", "mfu_evictable_data", "mfu_evictable_metadata", 9734076b1bfSPrakash Surya "mfu_ghost_size", "mfu_ghost_evictable_data", 9744076b1bfSPrakash Surya "mfu_ghost_evictable_metadata", "evict_l2_cached", 9754076b1bfSPrakash Surya "evict_l2_eligible", "evict_l2_ineligible", "l2_read_bytes", 9764076b1bfSPrakash Surya "l2_write_bytes", "l2_size", "l2_asize", "l2_hdr_size", 977*dcbf3bd6SGeorge Wilson "compressed_size", "uncompressed_size", "overhead_size", 9789253d63dSGeorge Wilson NULL 97991ebeef5Sahrens }; 98091ebeef5Sahrens 98191ebeef5Sahrens static const char *extras[] = { 98291ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 98391ebeef5Sahrens NULL 98444cb6abcSbmc }; 98544cb6abcSbmc 98622ce0148SMatthew Ahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "arc_stats", &sym) == -1) { 98744cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 98844cb6abcSbmc return (DCMD_ERR); 98944cb6abcSbmc } 99044cb6abcSbmc 99144cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 99244cb6abcSbmc 99344cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 99444cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 99544cb6abcSbmc return (DCMD_ERR); 99644cb6abcSbmc } 99744cb6abcSbmc 99844cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 99944cb6abcSbmc 100091ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 100191ebeef5Sahrens if (mdb_getopts(argc, argv, 100291ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 100391ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 100491ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 100591ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 100691ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 100791ebeef5Sahrens NULL) != argc) 100844cb6abcSbmc return (DCMD_USAGE); 100944cb6abcSbmc 101091ebeef5Sahrens if (!opt_b && !shift) 101191ebeef5Sahrens shift = 20; 101291ebeef5Sahrens 101391ebeef5Sahrens switch (shift) { 101491ebeef5Sahrens case 0: 101591ebeef5Sahrens suffix = "B"; 101691ebeef5Sahrens break; 101791ebeef5Sahrens case 10: 101891ebeef5Sahrens suffix = "KB"; 101991ebeef5Sahrens break; 102091ebeef5Sahrens case 20: 102191ebeef5Sahrens suffix = "MB"; 102291ebeef5Sahrens break; 102391ebeef5Sahrens case 30: 102491ebeef5Sahrens suffix = "GB"; 102591ebeef5Sahrens break; 102691ebeef5Sahrens default: 102791ebeef5Sahrens suffix = "XX"; 102891ebeef5Sahrens } 102991ebeef5Sahrens 103091ebeef5Sahrens for (i = 0; i < nstats; i++) { 103191ebeef5Sahrens int j; 103291ebeef5Sahrens boolean_t bytes = B_FALSE; 103391ebeef5Sahrens 103491ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 103591ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 103691ebeef5Sahrens bytes = B_TRUE; 103791ebeef5Sahrens break; 103891ebeef5Sahrens } 103991ebeef5Sahrens } 104044cb6abcSbmc 104191ebeef5Sahrens if (bytes) { 104291ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 104391ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 104491ebeef5Sahrens } else { 104591ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 104644cb6abcSbmc stats[i].value.ui64); 104744cb6abcSbmc } 104844cb6abcSbmc } 104944cb6abcSbmc 105091ebeef5Sahrens for (i = 0; extras[i]; i++) { 105191ebeef5Sahrens uint64_t buf; 105244cb6abcSbmc 105322ce0148SMatthew Ahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, extras[i], &sym) == -1) { 105491ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 105591ebeef5Sahrens return (DCMD_ERR); 105644cb6abcSbmc } 105744cb6abcSbmc 105891ebeef5Sahrens if (sym.st_size != sizeof (uint64_t) && 105991ebeef5Sahrens sym.st_size != sizeof (uint32_t)) { 106091ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 106191ebeef5Sahrens extras[i]); 106291ebeef5Sahrens return (DCMD_ERR); 106344cb6abcSbmc } 106444cb6abcSbmc 106591ebeef5Sahrens if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 106691ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 106791ebeef5Sahrens return (DCMD_ERR); 106844cb6abcSbmc } 106944cb6abcSbmc 107091ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 107191ebeef5Sahrens 107291ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 107391ebeef5Sahrens if (sym.st_size == sizeof (uint64_t)) 107491ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 107544cb6abcSbmc 107691ebeef5Sahrens if (sym.st_size == sizeof (uint32_t)) 107791ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 107891ebeef5Sahrens } 107944cb6abcSbmc return (DCMD_OK); 108044cb6abcSbmc } 108144cb6abcSbmc 108222ce0148SMatthew Ahrens typedef struct mdb_spa_print { 108322ce0148SMatthew Ahrens pool_state_t spa_state; 10849adfa60dSMatthew Ahrens char spa_name[ZFS_MAX_DATASET_NAME_LEN]; 108522ce0148SMatthew Ahrens } mdb_spa_print_t; 108622ce0148SMatthew Ahrens 1087fa9e4066Sahrens /* 1088fa9e4066Sahrens * ::spa 1089fa9e4066Sahrens * 109022ce0148SMatthew Ahrens * -c Print configuration information as well 109122ce0148SMatthew Ahrens * -v Print vdev state 109222ce0148SMatthew Ahrens * -e Print vdev error stats 10932e4c9986SGeorge Wilson * -m Print vdev metaslab info 10942e4c9986SGeorge Wilson * -M print vdev metaslab group info 10952e4c9986SGeorge Wilson * -h Print histogram info (must be combined with -m or -M) 1096fa9e4066Sahrens * 1097fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 1098fa9e4066Sahrens * active pools on the system. 1099fa9e4066Sahrens */ 1100fa9e4066Sahrens /* ARGSUSED */ 1101fa9e4066Sahrens static int 1102fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1103fa9e4066Sahrens { 1104fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 1105e14bb325SJeff Bonwick "SPARE", "L2CACHE", "UNINIT", "UNAVAIL", "POTENTIAL" }; 1106fa9e4066Sahrens const char *state; 11072e4c9986SGeorge Wilson int spa_flags = 0; 1108fa9e4066Sahrens 1109fa9e4066Sahrens if (mdb_getopts(argc, argv, 11102e4c9986SGeorge Wilson 'c', MDB_OPT_SETBITS, SPA_FLAG_CONFIG, &spa_flags, 11112e4c9986SGeorge Wilson 'v', MDB_OPT_SETBITS, SPA_FLAG_VDEVS, &spa_flags, 11122e4c9986SGeorge Wilson 'e', MDB_OPT_SETBITS, SPA_FLAG_ERRORS, &spa_flags, 11132e4c9986SGeorge Wilson 'M', MDB_OPT_SETBITS, SPA_FLAG_METASLAB_GROUPS, &spa_flags, 11142e4c9986SGeorge Wilson 'm', MDB_OPT_SETBITS, SPA_FLAG_METASLABS, &spa_flags, 11152e4c9986SGeorge Wilson 'h', MDB_OPT_SETBITS, SPA_FLAG_HISTOGRAMS, &spa_flags, 1116fa9e4066Sahrens NULL) != argc) 1117fa9e4066Sahrens return (DCMD_USAGE); 1118fa9e4066Sahrens 1119fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1120fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 1121fa9e4066Sahrens mdb_warn("can't walk spa"); 1122fa9e4066Sahrens return (DCMD_ERR); 1123fa9e4066Sahrens } 1124fa9e4066Sahrens 1125fa9e4066Sahrens return (DCMD_OK); 1126fa9e4066Sahrens } 1127fa9e4066Sahrens 1128fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1129fa9e4066Sahrens mdb_printf("%#lr\n", addr); 1130fa9e4066Sahrens return (DCMD_OK); 1131fa9e4066Sahrens } 1132fa9e4066Sahrens 1133fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 1134fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 1135fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 1136fa9e4066Sahrens 113722ce0148SMatthew Ahrens mdb_spa_print_t spa; 113822ce0148SMatthew Ahrens if (mdb_ctf_vread(&spa, "spa_t", "mdb_spa_print_t", addr, 0) == -1) 1139fa9e4066Sahrens return (DCMD_ERR); 1140fa9e4066Sahrens 1141fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 1142ea8dc4b6Seschrock state = "UNKNOWN"; 1143fa9e4066Sahrens else 1144fa9e4066Sahrens state = statetab[spa.spa_state]; 1145fa9e4066Sahrens 1146e14bb325SJeff Bonwick mdb_printf("%0?p %9s %s\n", addr, state, spa.spa_name); 1147fa9e4066Sahrens 11482e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_CONFIG) { 1149fa9e4066Sahrens mdb_printf("\n"); 1150fa9e4066Sahrens mdb_inc_indent(4); 1151fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 1152fa9e4066Sahrens NULL) != DCMD_OK) 1153fa9e4066Sahrens return (DCMD_ERR); 1154fa9e4066Sahrens mdb_dec_indent(4); 1155fa9e4066Sahrens } 1156fa9e4066Sahrens 11572e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_ALL_VDEV) { 1158fa9e4066Sahrens mdb_arg_t v; 11592e4c9986SGeorge Wilson char opts[100] = "-"; 11602e4c9986SGeorge Wilson int args = 11612e4c9986SGeorge Wilson (spa_flags | SPA_FLAG_VDEVS) == SPA_FLAG_VDEVS ? 0 : 1; 11622e4c9986SGeorge Wilson 11632e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_ERRORS) 11642e4c9986SGeorge Wilson strcat(opts, "e"); 11652e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLABS) 11662e4c9986SGeorge Wilson strcat(opts, "m"); 11672e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLAB_GROUPS) 11682e4c9986SGeorge Wilson strcat(opts, "M"); 11692e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_HISTOGRAMS) 11702e4c9986SGeorge Wilson strcat(opts, "h"); 1171fa9e4066Sahrens 1172fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 11732e4c9986SGeorge Wilson v.a_un.a_str = opts; 1174fa9e4066Sahrens 1175fa9e4066Sahrens mdb_printf("\n"); 1176fa9e4066Sahrens mdb_inc_indent(4); 11772e4c9986SGeorge Wilson if (mdb_call_dcmd("spa_vdevs", addr, flags, args, 1178fa9e4066Sahrens &v) != DCMD_OK) 1179fa9e4066Sahrens return (DCMD_ERR); 1180fa9e4066Sahrens mdb_dec_indent(4); 1181fa9e4066Sahrens } 1182fa9e4066Sahrens 1183fa9e4066Sahrens return (DCMD_OK); 1184fa9e4066Sahrens } 1185fa9e4066Sahrens 118628e4da25SMatthew Ahrens typedef struct mdb_spa_config_spa { 1187d5ee8a13SMatthew Ahrens uintptr_t spa_config; 118828e4da25SMatthew Ahrens } mdb_spa_config_spa_t; 118928e4da25SMatthew Ahrens 1190fa9e4066Sahrens /* 1191fa9e4066Sahrens * ::spa_config 1192fa9e4066Sahrens * 1193fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 1194fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 1195fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 1196fa9e4066Sahrens */ 1197fa9e4066Sahrens /* ARGSUSED */ 1198fa9e4066Sahrens static int 1199fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1200fa9e4066Sahrens { 120128e4da25SMatthew Ahrens mdb_spa_config_spa_t spa; 1202fa9e4066Sahrens 1203fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1204fa9e4066Sahrens return (DCMD_USAGE); 1205fa9e4066Sahrens 120628e4da25SMatthew Ahrens if (mdb_ctf_vread(&spa, ZFS_STRUCT "spa", "mdb_spa_config_spa_t", 120728e4da25SMatthew Ahrens addr, 0) == -1) 1208fa9e4066Sahrens return (DCMD_ERR); 1209fa9e4066Sahrens 1210d5ee8a13SMatthew Ahrens if (spa.spa_config == 0) { 1211fa9e4066Sahrens mdb_printf("(none)\n"); 1212fa9e4066Sahrens return (DCMD_OK); 1213fa9e4066Sahrens } 1214fa9e4066Sahrens 1215d5ee8a13SMatthew Ahrens return (mdb_call_dcmd("nvlist", spa.spa_config, flags, 1216fa9e4066Sahrens 0, NULL)); 1217fa9e4066Sahrens } 1218fa9e4066Sahrens 12192e4c9986SGeorge Wilson const char histo_stars[] = "****************************************"; 12202e4c9986SGeorge Wilson const int histo_width = sizeof (histo_stars) - 1; 12212e4c9986SGeorge Wilson 12222e4c9986SGeorge Wilson static void 12232e4c9986SGeorge Wilson dump_histogram(const uint64_t *histo, int size, int offset) 12242e4c9986SGeorge Wilson { 12252e4c9986SGeorge Wilson int i; 12262e4c9986SGeorge Wilson int minidx = size - 1; 12272e4c9986SGeorge Wilson int maxidx = 0; 12282e4c9986SGeorge Wilson uint64_t max = 0; 12292e4c9986SGeorge Wilson 12302e4c9986SGeorge Wilson for (i = 0; i < size; i++) { 12312e4c9986SGeorge Wilson if (histo[i] > max) 12322e4c9986SGeorge Wilson max = histo[i]; 12332e4c9986SGeorge Wilson if (histo[i] > 0 && i > maxidx) 12342e4c9986SGeorge Wilson maxidx = i; 12352e4c9986SGeorge Wilson if (histo[i] > 0 && i < minidx) 12362e4c9986SGeorge Wilson minidx = i; 12372e4c9986SGeorge Wilson } 12382e4c9986SGeorge Wilson 12392e4c9986SGeorge Wilson if (max < histo_width) 12402e4c9986SGeorge Wilson max = histo_width; 12412e4c9986SGeorge Wilson 12422e4c9986SGeorge Wilson for (i = minidx; i <= maxidx; i++) { 12432e4c9986SGeorge Wilson mdb_printf("%3u: %6llu %s\n", 12442e4c9986SGeorge Wilson i + offset, (u_longlong_t)histo[i], 12452e4c9986SGeorge Wilson &histo_stars[(max - histo[i]) * histo_width / max]); 12462e4c9986SGeorge Wilson } 12472e4c9986SGeorge Wilson } 12482e4c9986SGeorge Wilson 12492e4c9986SGeorge Wilson typedef struct mdb_range_tree { 12502e4c9986SGeorge Wilson uint64_t rt_space; 12512e4c9986SGeorge Wilson } mdb_range_tree_t; 12522e4c9986SGeorge Wilson 12532e4c9986SGeorge Wilson typedef struct mdb_metaslab_group { 12542e4c9986SGeorge Wilson uint64_t mg_fragmentation; 12552e4c9986SGeorge Wilson uint64_t mg_histogram[RANGE_TREE_HISTOGRAM_SIZE]; 12562e4c9986SGeorge Wilson } mdb_metaslab_group_t; 12572e4c9986SGeorge Wilson 12582e4c9986SGeorge Wilson typedef struct mdb_metaslab { 12592e4c9986SGeorge Wilson uint64_t ms_id; 12602e4c9986SGeorge Wilson uint64_t ms_start; 12612e4c9986SGeorge Wilson uint64_t ms_size; 12622e4c9986SGeorge Wilson uint64_t ms_fragmentation; 12632e4c9986SGeorge Wilson uintptr_t ms_alloctree[TXG_SIZE]; 12642e4c9986SGeorge Wilson uintptr_t ms_freetree[TXG_SIZE]; 12652e4c9986SGeorge Wilson uintptr_t ms_tree; 12662e4c9986SGeorge Wilson uintptr_t ms_sm; 12672e4c9986SGeorge Wilson } mdb_metaslab_t; 12682e4c9986SGeorge Wilson 12692e4c9986SGeorge Wilson typedef struct mdb_space_map_phys_t { 12702e4c9986SGeorge Wilson uint64_t smp_alloc; 12712e4c9986SGeorge Wilson uint64_t smp_histogram[SPACE_MAP_HISTOGRAM_SIZE]; 12722e4c9986SGeorge Wilson } mdb_space_map_phys_t; 12732e4c9986SGeorge Wilson 12742e4c9986SGeorge Wilson typedef struct mdb_space_map { 12752e4c9986SGeorge Wilson uint64_t sm_size; 12762e4c9986SGeorge Wilson uint8_t sm_shift; 12772e4c9986SGeorge Wilson uint64_t sm_alloc; 12782e4c9986SGeorge Wilson uintptr_t sm_phys; 12792e4c9986SGeorge Wilson } mdb_space_map_t; 12802e4c9986SGeorge Wilson 12812e4c9986SGeorge Wilson typedef struct mdb_vdev { 12822e4c9986SGeorge Wilson uintptr_t vdev_ms; 12832e4c9986SGeorge Wilson uint64_t vdev_ms_count; 12842e4c9986SGeorge Wilson vdev_stat_t vdev_stat; 12852e4c9986SGeorge Wilson } mdb_vdev_t; 12862e4c9986SGeorge Wilson 12872e4c9986SGeorge Wilson static int 12882e4c9986SGeorge Wilson metaslab_stats(uintptr_t addr, int spa_flags) 12892e4c9986SGeorge Wilson { 12902e4c9986SGeorge Wilson mdb_vdev_t vdev; 12912e4c9986SGeorge Wilson uintptr_t *vdev_ms; 12922e4c9986SGeorge Wilson 12932e4c9986SGeorge Wilson if (mdb_ctf_vread(&vdev, "vdev_t", "mdb_vdev_t", 12942e4c9986SGeorge Wilson (uintptr_t)addr, 0) == -1) { 12952e4c9986SGeorge Wilson mdb_warn("failed to read vdev at %p\n", addr); 12962e4c9986SGeorge Wilson return (DCMD_ERR); 12972e4c9986SGeorge Wilson } 12982e4c9986SGeorge Wilson 12992e4c9986SGeorge Wilson mdb_inc_indent(4); 13002e4c9986SGeorge Wilson mdb_printf("%<u>%-?s %6s %20s %10s %9s%</u>\n", "ADDR", "ID", 13012e4c9986SGeorge Wilson "OFFSET", "FREE", "FRAGMENTATION"); 13022e4c9986SGeorge Wilson 13032e4c9986SGeorge Wilson vdev_ms = mdb_alloc(vdev.vdev_ms_count * sizeof (void *), 13042e4c9986SGeorge Wilson UM_SLEEP | UM_GC); 13052e4c9986SGeorge Wilson if (mdb_vread(vdev_ms, vdev.vdev_ms_count * sizeof (void *), 13062e4c9986SGeorge Wilson (uintptr_t)vdev.vdev_ms) == -1) { 13072e4c9986SGeorge Wilson mdb_warn("failed to read vdev_ms at %p\n", vdev.vdev_ms); 13082e4c9986SGeorge Wilson return (DCMD_ERR); 13092e4c9986SGeorge Wilson } 13102e4c9986SGeorge Wilson 13112e4c9986SGeorge Wilson for (int m = 0; m < vdev.vdev_ms_count; m++) { 13122e4c9986SGeorge Wilson mdb_metaslab_t ms; 13132e4c9986SGeorge Wilson mdb_space_map_t sm = { 0 }; 13142e4c9986SGeorge Wilson char free[NICENUM_BUFLEN]; 13152e4c9986SGeorge Wilson 13162e4c9986SGeorge Wilson if (mdb_ctf_vread(&ms, "metaslab_t", "mdb_metaslab_t", 13172e4c9986SGeorge Wilson (uintptr_t)vdev_ms[m], 0) == -1) 13182e4c9986SGeorge Wilson return (DCMD_ERR); 13192e4c9986SGeorge Wilson 13202e4c9986SGeorge Wilson if (ms.ms_sm != NULL && 13212e4c9986SGeorge Wilson mdb_ctf_vread(&sm, "space_map_t", "mdb_space_map_t", 13222e4c9986SGeorge Wilson ms.ms_sm, 0) == -1) 13232e4c9986SGeorge Wilson return (DCMD_ERR); 13242e4c9986SGeorge Wilson 13252e4c9986SGeorge Wilson mdb_nicenum(ms.ms_size - sm.sm_alloc, free); 13262e4c9986SGeorge Wilson 13272e4c9986SGeorge Wilson mdb_printf("%0?p %6llu %20llx %10s ", vdev_ms[m], ms.ms_id, 13282e4c9986SGeorge Wilson ms.ms_start, free); 13292e4c9986SGeorge Wilson if (ms.ms_fragmentation == ZFS_FRAG_INVALID) 13302e4c9986SGeorge Wilson mdb_printf("%9s\n", "-"); 13312e4c9986SGeorge Wilson else 13322e4c9986SGeorge Wilson mdb_printf("%9llu%%\n", ms.ms_fragmentation); 13332e4c9986SGeorge Wilson 13342e4c9986SGeorge Wilson if ((spa_flags & SPA_FLAG_HISTOGRAMS) && ms.ms_sm != NULL) { 13352e4c9986SGeorge Wilson mdb_space_map_phys_t smp; 13362e4c9986SGeorge Wilson 13372e4c9986SGeorge Wilson if (sm.sm_phys == NULL) 13382e4c9986SGeorge Wilson continue; 13392e4c9986SGeorge Wilson 13402e4c9986SGeorge Wilson (void) mdb_ctf_vread(&smp, "space_map_phys_t", 13412e4c9986SGeorge Wilson "mdb_space_map_phys_t", sm.sm_phys, 0); 13422e4c9986SGeorge Wilson 13432e4c9986SGeorge Wilson dump_histogram(smp.smp_histogram, 13442e4c9986SGeorge Wilson SPACE_MAP_HISTOGRAM_SIZE, sm.sm_shift); 13452e4c9986SGeorge Wilson } 13462e4c9986SGeorge Wilson } 13472e4c9986SGeorge Wilson mdb_dec_indent(4); 13482e4c9986SGeorge Wilson return (DCMD_OK); 13492e4c9986SGeorge Wilson } 13502e4c9986SGeorge Wilson 13512e4c9986SGeorge Wilson static int 13522e4c9986SGeorge Wilson metaslab_group_stats(uintptr_t addr, int spa_flags) 13532e4c9986SGeorge Wilson { 13542e4c9986SGeorge Wilson mdb_metaslab_group_t mg; 13552e4c9986SGeorge Wilson if (mdb_ctf_vread(&mg, "metaslab_group_t", "mdb_metaslab_group_t", 13562e4c9986SGeorge Wilson (uintptr_t)addr, 0) == -1) { 13572e4c9986SGeorge Wilson mdb_warn("failed to read vdev_mg at %p\n", addr); 13582e4c9986SGeorge Wilson return (DCMD_ERR); 13592e4c9986SGeorge Wilson } 13602e4c9986SGeorge Wilson 13612e4c9986SGeorge Wilson mdb_inc_indent(4); 13622e4c9986SGeorge Wilson mdb_printf("%<u>%-?s %15s%</u>\n", "ADDR", "FRAGMENTATION"); 13632e4c9986SGeorge Wilson if (mg.mg_fragmentation == ZFS_FRAG_INVALID) 13642e4c9986SGeorge Wilson mdb_printf("%0?p %15s\n", addr, "-"); 13652e4c9986SGeorge Wilson else 13662e4c9986SGeorge Wilson mdb_printf("%0?p %15llu%%\n", addr, mg.mg_fragmentation); 13672e4c9986SGeorge Wilson 13682e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_HISTOGRAMS) 13692e4c9986SGeorge Wilson dump_histogram(mg.mg_histogram, RANGE_TREE_HISTOGRAM_SIZE, 0); 13702e4c9986SGeorge Wilson mdb_dec_indent(4); 13712e4c9986SGeorge Wilson return (DCMD_OK); 13722e4c9986SGeorge Wilson } 13732e4c9986SGeorge Wilson 1374fa9e4066Sahrens /* 1375fa9e4066Sahrens * ::vdev 1376fa9e4066Sahrens * 1377fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1378fa9e4066Sahrens * 1379fa9e4066Sahrens * ADDR STATE AUX DESC 1380fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1381fa9e4066Sahrens * 1382fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1383fa9e4066Sahrens * 1384fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1385fa9e4066Sahrens */ 1386fa9e4066Sahrens static int 13872e4c9986SGeorge Wilson do_print_vdev(uintptr_t addr, int flags, int depth, boolean_t recursive, 13882e4c9986SGeorge Wilson int spa_flags) 1389fa9e4066Sahrens { 1390fa9e4066Sahrens vdev_t vdev; 1391fa9e4066Sahrens char desc[MAXNAMELEN]; 1392fa9e4066Sahrens int c, children; 1393fa9e4066Sahrens uintptr_t *child; 1394fa9e4066Sahrens const char *state, *aux; 1395fa9e4066Sahrens 1396fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1397fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1398fa9e4066Sahrens return (DCMD_ERR); 1399fa9e4066Sahrens } 1400fa9e4066Sahrens 1401fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1402b4952e17SGeorge Wilson mdb_printf("%#lr\n", addr); 1403fa9e4066Sahrens } else { 1404fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1405fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1406fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1407fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1408fa9e4066Sahrens vdev.vdev_path); 1409fa9e4066Sahrens return (DCMD_ERR); 1410fa9e4066Sahrens } 1411fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1412fa9e4066Sahrens vdev_ops_t ops; 1413fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1414fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1415fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1416fa9e4066Sahrens vdev.vdev_ops); 1417fa9e4066Sahrens return (DCMD_ERR); 1418fa9e4066Sahrens } 1419fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1420fa9e4066Sahrens } else { 1421fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1422fa9e4066Sahrens } 1423fa9e4066Sahrens 1424fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1425fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1426fa9e4066Sahrens "ADDR", "STATE", "AUX", 1427fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1428fa9e4066Sahrens "DESCRIPTION"); 1429fa9e4066Sahrens 1430fa9e4066Sahrens mdb_printf("%0?p ", addr); 1431fa9e4066Sahrens 1432fa9e4066Sahrens switch (vdev.vdev_state) { 1433fa9e4066Sahrens case VDEV_STATE_CLOSED: 1434ccae0b50Seschrock state = "CLOSED"; 1435ccae0b50Seschrock break; 1436fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1437ccae0b50Seschrock state = "OFFLINE"; 1438ccae0b50Seschrock break; 1439fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1440ccae0b50Seschrock state = "CANT_OPEN"; 1441ccae0b50Seschrock break; 1442fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1443ccae0b50Seschrock state = "DEGRADED"; 1444ccae0b50Seschrock break; 1445fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1446ccae0b50Seschrock state = "HEALTHY"; 1447ccae0b50Seschrock break; 14483d7072f8Seschrock case VDEV_STATE_REMOVED: 14493d7072f8Seschrock state = "REMOVED"; 14503d7072f8Seschrock break; 14513d7072f8Seschrock case VDEV_STATE_FAULTED: 14523d7072f8Seschrock state = "FAULTED"; 14533d7072f8Seschrock break; 1454fa9e4066Sahrens default: 1455ccae0b50Seschrock state = "UNKNOWN"; 1456ccae0b50Seschrock break; 1457fa9e4066Sahrens } 1458fa9e4066Sahrens 1459fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1460fa9e4066Sahrens case VDEV_AUX_NONE: 1461fa9e4066Sahrens aux = "-"; 1462fa9e4066Sahrens break; 1463fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1464fa9e4066Sahrens aux = "OPEN_FAILED"; 1465fa9e4066Sahrens break; 1466fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1467fa9e4066Sahrens aux = "CORRUPT_DATA"; 1468fa9e4066Sahrens break; 1469fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1470fa9e4066Sahrens aux = "NO_REPLICAS"; 1471fa9e4066Sahrens break; 1472fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1473fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1474fa9e4066Sahrens break; 1475fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1476fa9e4066Sahrens aux = "TOO_SMALL"; 1477fa9e4066Sahrens break; 1478fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1479fa9e4066Sahrens aux = "BAD_LABEL"; 1480fa9e4066Sahrens break; 1481b87f3af3Sperrin case VDEV_AUX_VERSION_NEWER: 1482b87f3af3Sperrin aux = "VERS_NEWER"; 1483b87f3af3Sperrin break; 1484b87f3af3Sperrin case VDEV_AUX_VERSION_OLDER: 1485b87f3af3Sperrin aux = "VERS_OLDER"; 1486b87f3af3Sperrin break; 1487ad135b5dSChristopher Siden case VDEV_AUX_UNSUP_FEAT: 1488ad135b5dSChristopher Siden aux = "UNSUP_FEAT"; 1489ad135b5dSChristopher Siden break; 1490b87f3af3Sperrin case VDEV_AUX_SPARED: 1491b87f3af3Sperrin aux = "SPARED"; 1492b87f3af3Sperrin break; 1493b87f3af3Sperrin case VDEV_AUX_ERR_EXCEEDED: 1494b87f3af3Sperrin aux = "ERR_EXCEEDED"; 1495b87f3af3Sperrin break; 1496b87f3af3Sperrin case VDEV_AUX_IO_FAILURE: 1497b87f3af3Sperrin aux = "IO_FAILURE"; 1498b87f3af3Sperrin break; 1499b87f3af3Sperrin case VDEV_AUX_BAD_LOG: 1500b87f3af3Sperrin aux = "BAD_LOG"; 1501b87f3af3Sperrin break; 15021195e687SMark J Musante case VDEV_AUX_EXTERNAL: 15031195e687SMark J Musante aux = "EXTERNAL"; 15041195e687SMark J Musante break; 15051195e687SMark J Musante case VDEV_AUX_SPLIT_POOL: 15061195e687SMark J Musante aux = "SPLIT_POOL"; 15071195e687SMark J Musante break; 1508fa9e4066Sahrens default: 1509fa9e4066Sahrens aux = "UNKNOWN"; 1510fa9e4066Sahrens break; 1511fa9e4066Sahrens } 1512fa9e4066Sahrens 1513fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1514fa9e4066Sahrens 15152e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_ERRORS) { 1516fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1517fa9e4066Sahrens int i; 1518fa9e4066Sahrens 1519fa9e4066Sahrens mdb_inc_indent(4); 1520fa9e4066Sahrens mdb_printf("\n"); 1521fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1522fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1523fa9e4066Sahrens "IOCTL"); 1524fa9e4066Sahrens mdb_printf("OPS "); 1525fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1526fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1527fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1528fa9e4066Sahrens mdb_printf("\n"); 1529fa9e4066Sahrens mdb_printf("BYTES "); 1530fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1531fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1532fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1533fa9e4066Sahrens 1534fa9e4066Sahrens 1535fa9e4066Sahrens mdb_printf("\n"); 1536fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1537fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1538fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1539fa9e4066Sahrens vs->vs_checksum_errors); 1540fa9e4066Sahrens mdb_dec_indent(4); 15412e4c9986SGeorge Wilson mdb_printf("\n"); 1542fa9e4066Sahrens } 1543fa9e4066Sahrens 15442e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLAB_GROUPS && 15452e4c9986SGeorge Wilson vdev.vdev_mg != NULL) { 15462e4c9986SGeorge Wilson metaslab_group_stats((uintptr_t)vdev.vdev_mg, 15472e4c9986SGeorge Wilson spa_flags); 15482e4c9986SGeorge Wilson } 15492e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLABS && vdev.vdev_ms != NULL) { 15502e4c9986SGeorge Wilson metaslab_stats((uintptr_t)addr, spa_flags); 15512e4c9986SGeorge Wilson } 1552fa9e4066Sahrens } 1553fa9e4066Sahrens 1554fa9e4066Sahrens children = vdev.vdev_children; 1555fa9e4066Sahrens 1556fa9e4066Sahrens if (children == 0 || !recursive) 1557fa9e4066Sahrens return (DCMD_OK); 1558fa9e4066Sahrens 1559fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1560fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1561fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1562fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1563fa9e4066Sahrens return (DCMD_ERR); 1564fa9e4066Sahrens } 1565fa9e4066Sahrens 1566fa9e4066Sahrens for (c = 0; c < children; c++) { 15672e4c9986SGeorge Wilson if (do_print_vdev(child[c], flags, depth + 2, recursive, 15682e4c9986SGeorge Wilson spa_flags)) { 1569fa9e4066Sahrens return (DCMD_ERR); 15702e4c9986SGeorge Wilson } 1571fa9e4066Sahrens } 1572fa9e4066Sahrens 1573fa9e4066Sahrens return (DCMD_OK); 1574fa9e4066Sahrens } 1575fa9e4066Sahrens 1576fa9e4066Sahrens static int 1577fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1578fa9e4066Sahrens { 1579c5904d13Seschrock uint64_t depth = 0; 15802e4c9986SGeorge Wilson boolean_t recursive = B_FALSE; 15812e4c9986SGeorge Wilson int spa_flags = 0; 1582fa9e4066Sahrens 1583fa9e4066Sahrens if (mdb_getopts(argc, argv, 15842e4c9986SGeorge Wilson 'e', MDB_OPT_SETBITS, SPA_FLAG_ERRORS, &spa_flags, 15852e4c9986SGeorge Wilson 'm', MDB_OPT_SETBITS, SPA_FLAG_METASLABS, &spa_flags, 15862e4c9986SGeorge Wilson 'M', MDB_OPT_SETBITS, SPA_FLAG_METASLAB_GROUPS, &spa_flags, 15872e4c9986SGeorge Wilson 'h', MDB_OPT_SETBITS, SPA_FLAG_HISTOGRAMS, &spa_flags, 1588fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 15892e4c9986SGeorge Wilson 'd', MDB_OPT_UINT64, &depth, NULL) != argc) 1590fa9e4066Sahrens return (DCMD_USAGE); 1591fa9e4066Sahrens 1592fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1593fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1594fa9e4066Sahrens return (DCMD_ERR); 1595fa9e4066Sahrens } 1596fa9e4066Sahrens 15972e4c9986SGeorge Wilson return (do_print_vdev(addr, flags, (int)depth, recursive, spa_flags)); 1598fa9e4066Sahrens } 1599fa9e4066Sahrens 16005f5f7a6fSahrens typedef struct metaslab_walk_data { 16015f5f7a6fSahrens uint64_t mw_numvdevs; 16025f5f7a6fSahrens uintptr_t *mw_vdevs; 16035f5f7a6fSahrens int mw_curvdev; 16045f5f7a6fSahrens uint64_t mw_nummss; 16055f5f7a6fSahrens uintptr_t *mw_mss; 16065f5f7a6fSahrens int mw_curms; 16075f5f7a6fSahrens } metaslab_walk_data_t; 16085f5f7a6fSahrens 16095f5f7a6fSahrens static int 16105f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 16115f5f7a6fSahrens { 16125f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 16135f5f7a6fSahrens metaslab_t ms; 16145f5f7a6fSahrens uintptr_t msp; 16155f5f7a6fSahrens 16165f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 16175f5f7a6fSahrens return (WALK_DONE); 16185f5f7a6fSahrens 16195f5f7a6fSahrens if (mw->mw_mss == NULL) { 16205f5f7a6fSahrens uintptr_t mssp; 16215f5f7a6fSahrens uintptr_t vdevp; 16225f5f7a6fSahrens 16235f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 16245f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 16255f5f7a6fSahrens 16265f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 162728e4da25SMatthew Ahrens if (GETMEMB(vdevp, "vdev", vdev_ms, mssp) || 162828e4da25SMatthew Ahrens GETMEMB(vdevp, "vdev", vdev_ms_count, mw->mw_nummss)) { 16295f5f7a6fSahrens return (WALK_ERR); 16305f5f7a6fSahrens } 16315f5f7a6fSahrens 16325f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 16335f5f7a6fSahrens UM_SLEEP | UM_GC); 16345f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 16355f5f7a6fSahrens mssp) == -1) { 16365f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 16375f5f7a6fSahrens return (WALK_ERR); 16385f5f7a6fSahrens } 16395f5f7a6fSahrens } 16405f5f7a6fSahrens 16415f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 16425f5f7a6fSahrens mw->mw_mss = NULL; 16435f5f7a6fSahrens mw->mw_curms = 0; 16445f5f7a6fSahrens mw->mw_nummss = 0; 16455f5f7a6fSahrens mw->mw_curvdev++; 16465f5f7a6fSahrens return (WALK_NEXT); 16475f5f7a6fSahrens } 16485f5f7a6fSahrens 16495f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 16505f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 16515f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 16525f5f7a6fSahrens return (WALK_ERR); 16535f5f7a6fSahrens } 16545f5f7a6fSahrens 16555f5f7a6fSahrens mw->mw_curms++; 16565f5f7a6fSahrens 16575f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 16585f5f7a6fSahrens } 16595f5f7a6fSahrens 16605f5f7a6fSahrens static int 16615f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 16625f5f7a6fSahrens { 16635f5f7a6fSahrens metaslab_walk_data_t *mw; 16645f5f7a6fSahrens uintptr_t root_vdevp; 16655f5f7a6fSahrens uintptr_t childp; 16665f5f7a6fSahrens 16675f5f7a6fSahrens if (wsp->walk_addr == NULL) { 16685f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 16695f5f7a6fSahrens return (WALK_ERR); 16705f5f7a6fSahrens } 16715f5f7a6fSahrens 16725f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 16735f5f7a6fSahrens 167428e4da25SMatthew Ahrens if (GETMEMB(wsp->walk_addr, "spa", spa_root_vdev, root_vdevp) || 167528e4da25SMatthew Ahrens GETMEMB(root_vdevp, "vdev", vdev_children, mw->mw_numvdevs) || 167628e4da25SMatthew Ahrens GETMEMB(root_vdevp, "vdev", vdev_child, childp)) { 16775f5f7a6fSahrens return (DCMD_ERR); 16785f5f7a6fSahrens } 16795f5f7a6fSahrens 16805f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 16815f5f7a6fSahrens UM_SLEEP | UM_GC); 16825f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 16835f5f7a6fSahrens childp) == -1) { 16845f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 16855f5f7a6fSahrens return (DCMD_ERR); 16865f5f7a6fSahrens } 16875f5f7a6fSahrens 16885f5f7a6fSahrens wsp->walk_data = mw; 16895f5f7a6fSahrens 16905f5f7a6fSahrens return (WALK_NEXT); 16915f5f7a6fSahrens } 16925f5f7a6fSahrens 1693fa9e4066Sahrens typedef struct mdb_spa { 1694fa9e4066Sahrens uintptr_t spa_dsl_pool; 1695fa9e4066Sahrens uintptr_t spa_root_vdev; 1696fa9e4066Sahrens } mdb_spa_t; 1697fa9e4066Sahrens 16982515f5d4SJustin T. Gibbs typedef struct mdb_dsl_pool { 16992515f5d4SJustin T. Gibbs uintptr_t dp_root_dir; 17002515f5d4SJustin T. Gibbs } mdb_dsl_pool_t; 17012515f5d4SJustin T. Gibbs 1702fa9e4066Sahrens typedef struct mdb_dsl_dir { 17032515f5d4SJustin T. Gibbs uintptr_t dd_dbuf; 1704fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1705fa9e4066Sahrens } mdb_dsl_dir_t; 1706fa9e4066Sahrens 1707fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1708fa9e4066Sahrens uint64_t dd_used_bytes; 1709fa9e4066Sahrens uint64_t dd_compressed_bytes; 1710fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1711fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1712fa9e4066Sahrens 17135f5f7a6fSahrens typedef struct space_data { 17140713e232SGeorge Wilson uint64_t ms_alloctree[TXG_SIZE]; 17150713e232SGeorge Wilson uint64_t ms_freetree[TXG_SIZE]; 17160713e232SGeorge Wilson uint64_t ms_tree; 17175f5f7a6fSahrens uint64_t avail; 17185f5f7a6fSahrens uint64_t nowavail; 17195f5f7a6fSahrens } space_data_t; 17205f5f7a6fSahrens 17215f5f7a6fSahrens /* ARGSUSED */ 17225f5f7a6fSahrens static int 17235f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 17245f5f7a6fSahrens { 17255f5f7a6fSahrens space_data_t *sd = arg; 17265f5f7a6fSahrens mdb_metaslab_t ms; 17270713e232SGeorge Wilson mdb_range_tree_t rt; 17282e4c9986SGeorge Wilson mdb_space_map_t sm = { 0 }; 17290713e232SGeorge Wilson mdb_space_map_phys_t smp = { 0 }; 17300713e232SGeorge Wilson int i; 17310713e232SGeorge Wilson 17320713e232SGeorge Wilson if (mdb_ctf_vread(&ms, "metaslab_t", "mdb_metaslab_t", 17330713e232SGeorge Wilson addr, 0) == -1) 17340713e232SGeorge Wilson return (WALK_ERR); 17350713e232SGeorge Wilson 17360713e232SGeorge Wilson for (i = 0; i < TXG_SIZE; i++) { 17370713e232SGeorge Wilson if (mdb_ctf_vread(&rt, "range_tree_t", 17380713e232SGeorge Wilson "mdb_range_tree_t", ms.ms_alloctree[i], 0) == -1) 17392e4c9986SGeorge Wilson return (WALK_ERR); 17402e4c9986SGeorge Wilson 17410713e232SGeorge Wilson sd->ms_alloctree[i] += rt.rt_space; 17425f5f7a6fSahrens 17430713e232SGeorge Wilson if (mdb_ctf_vread(&rt, "range_tree_t", 17440713e232SGeorge Wilson "mdb_range_tree_t", ms.ms_freetree[i], 0) == -1) 17452e4c9986SGeorge Wilson return (WALK_ERR); 17462e4c9986SGeorge Wilson 17470713e232SGeorge Wilson sd->ms_freetree[i] += rt.rt_space; 17480713e232SGeorge Wilson } 17490713e232SGeorge Wilson 17500713e232SGeorge Wilson if (mdb_ctf_vread(&rt, "range_tree_t", 17512e4c9986SGeorge Wilson "mdb_range_tree_t", ms.ms_tree, 0) == -1) 17522e4c9986SGeorge Wilson return (WALK_ERR); 17532e4c9986SGeorge Wilson 17542e4c9986SGeorge Wilson if (ms.ms_sm != NULL && 17550713e232SGeorge Wilson mdb_ctf_vread(&sm, "space_map_t", 17560713e232SGeorge Wilson "mdb_space_map_t", ms.ms_sm, 0) == -1) 17575f5f7a6fSahrens return (WALK_ERR); 17580713e232SGeorge Wilson 17590713e232SGeorge Wilson if (sm.sm_phys != NULL) { 17600713e232SGeorge Wilson (void) mdb_ctf_vread(&smp, "space_map_phys_t", 17610713e232SGeorge Wilson "mdb_space_map_phys_t", sm.sm_phys, 0); 17625f5f7a6fSahrens } 17635f5f7a6fSahrens 17640713e232SGeorge Wilson sd->ms_tree += rt.rt_space; 17650713e232SGeorge Wilson sd->avail += sm.sm_size - sm.sm_alloc; 17660713e232SGeorge Wilson sd->nowavail += sm.sm_size - smp.smp_alloc; 17675f5f7a6fSahrens 17685f5f7a6fSahrens return (WALK_NEXT); 17695f5f7a6fSahrens } 17705f5f7a6fSahrens 1771fa9e4066Sahrens /* 1772fa9e4066Sahrens * ::spa_space [-b] 1773fa9e4066Sahrens * 1774fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1775fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1776fa9e4066Sahrens * Otherwise print in megabytes. 1777fa9e4066Sahrens */ 1778fa9e4066Sahrens /* ARGSUSED */ 1779fa9e4066Sahrens static int 1780fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1781fa9e4066Sahrens { 1782fa9e4066Sahrens mdb_spa_t spa; 17832515f5d4SJustin T. Gibbs mdb_dsl_pool_t dp; 1784fa9e4066Sahrens mdb_dsl_dir_t dd; 17852515f5d4SJustin T. Gibbs mdb_dmu_buf_impl_t db; 1786fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 17875f5f7a6fSahrens space_data_t sd; 1788fa9e4066Sahrens int shift = 20; 1789fa9e4066Sahrens char *suffix = "M"; 179028e4da25SMatthew Ahrens int bytes = B_FALSE; 1791fa9e4066Sahrens 179228e4da25SMatthew Ahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bytes, NULL) != 1793fa9e4066Sahrens argc) 1794fa9e4066Sahrens return (DCMD_USAGE); 1795fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1796fa9e4066Sahrens return (DCMD_USAGE); 1797fa9e4066Sahrens 179828e4da25SMatthew Ahrens if (bytes) { 1799fa9e4066Sahrens shift = 0; 1800fa9e4066Sahrens suffix = ""; 1801fa9e4066Sahrens } 1802fa9e4066Sahrens 18032515f5d4SJustin T. Gibbs if (mdb_ctf_vread(&spa, ZFS_STRUCT "spa", "mdb_spa_t", 18042515f5d4SJustin T. Gibbs addr, 0) == -1 || 18052515f5d4SJustin T. Gibbs mdb_ctf_vread(&dp, ZFS_STRUCT "dsl_pool", "mdb_dsl_pool_t", 18062515f5d4SJustin T. Gibbs spa.spa_dsl_pool, 0) == -1 || 18072515f5d4SJustin T. Gibbs mdb_ctf_vread(&dd, ZFS_STRUCT "dsl_dir", "mdb_dsl_dir_t", 18082515f5d4SJustin T. Gibbs dp.dp_root_dir, 0) == -1 || 18092515f5d4SJustin T. Gibbs mdb_ctf_vread(&db, ZFS_STRUCT "dmu_buf_impl", "mdb_dmu_buf_impl_t", 18102515f5d4SJustin T. Gibbs dd.dd_dbuf, 0) == -1 || 18112515f5d4SJustin T. Gibbs mdb_ctf_vread(&dsp, ZFS_STRUCT "dsl_dir_phys", 18122515f5d4SJustin T. Gibbs "mdb_dsl_dir_phys_t", db.db.db_data, 0) == -1) { 1813fa9e4066Sahrens return (DCMD_ERR); 1814fa9e4066Sahrens } 1815fa9e4066Sahrens 1816fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1817fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1818fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1819fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1820fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1821fa9e4066Sahrens 1822fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1823fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 18245f5f7a6fSahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 18255f5f7a6fSahrens dsp.dd_compressed_bytes >> shift, suffix); 18265f5f7a6fSahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 18275f5f7a6fSahrens dsp.dd_uncompressed_bytes >> shift, suffix); 18285f5f7a6fSahrens 18295f5f7a6fSahrens bzero(&sd, sizeof (sd)); 18305f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 18315f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 18325f5f7a6fSahrens return (DCMD_ERR); 1833fa9e4066Sahrens } 1834fa9e4066Sahrens 1835fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 18360713e232SGeorge Wilson sd.ms_alloctree[0] >> shift, suffix, 18370713e232SGeorge Wilson sd.ms_alloctree[1] >> shift, suffix, 18380713e232SGeorge Wilson sd.ms_alloctree[2] >> shift, suffix, 18390713e232SGeorge Wilson sd.ms_alloctree[3] >> shift, suffix); 1840fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 18410713e232SGeorge Wilson sd.ms_freetree[0] >> shift, suffix, 18420713e232SGeorge Wilson sd.ms_freetree[1] >> shift, suffix, 18430713e232SGeorge Wilson sd.ms_freetree[2] >> shift, suffix, 18440713e232SGeorge Wilson sd.ms_freetree[3] >> shift, suffix); 18450713e232SGeorge Wilson mdb_printf("ms_tree = %llu%s\n", sd.ms_tree >> shift, suffix); 18465f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 18475f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 18485f5f7a6fSahrens sd.nowavail >> shift, suffix); 1849fa9e4066Sahrens 1850fa9e4066Sahrens return (DCMD_OK); 1851fa9e4066Sahrens } 1852fa9e4066Sahrens 185322ce0148SMatthew Ahrens typedef struct mdb_spa_aux_vdev { 185422ce0148SMatthew Ahrens int sav_count; 185522ce0148SMatthew Ahrens uintptr_t sav_vdevs; 185622ce0148SMatthew Ahrens } mdb_spa_aux_vdev_t; 1857fa9e4066Sahrens 185822ce0148SMatthew Ahrens typedef struct mdb_spa_vdevs { 185922ce0148SMatthew Ahrens uintptr_t spa_root_vdev; 186022ce0148SMatthew Ahrens mdb_spa_aux_vdev_t spa_l2cache; 186122ce0148SMatthew Ahrens mdb_spa_aux_vdev_t spa_spares; 186222ce0148SMatthew Ahrens } mdb_spa_vdevs_t; 1863fa9e4066Sahrens 1864ec9f632eSEric Schrock static int 186522ce0148SMatthew Ahrens spa_print_aux(mdb_spa_aux_vdev_t *sav, uint_t flags, mdb_arg_t *v, 1866ec9f632eSEric Schrock const char *name) 1867ec9f632eSEric Schrock { 1868ec9f632eSEric Schrock uintptr_t *aux; 1869ec9f632eSEric Schrock size_t len; 1870ec9f632eSEric Schrock int ret, i; 1871ec9f632eSEric Schrock 1872ec9f632eSEric Schrock /* 1873ec9f632eSEric Schrock * Iterate over aux vdevs and print those out as well. This is a 1874ec9f632eSEric Schrock * little annoying because we don't have a root vdev to pass to ::vdev. 1875ec9f632eSEric Schrock * Instead, we print a single line and then call it for each child 1876ec9f632eSEric Schrock * vdev. 1877ec9f632eSEric Schrock */ 1878ec9f632eSEric Schrock if (sav->sav_count != 0) { 1879ec9f632eSEric Schrock v[1].a_type = MDB_TYPE_STRING; 1880ec9f632eSEric Schrock v[1].a_un.a_str = "-d"; 1881ec9f632eSEric Schrock v[2].a_type = MDB_TYPE_IMMEDIATE; 1882ec9f632eSEric Schrock v[2].a_un.a_val = 2; 1883ec9f632eSEric Schrock 1884ec9f632eSEric Schrock len = sav->sav_count * sizeof (uintptr_t); 1885ec9f632eSEric Schrock aux = mdb_alloc(len, UM_SLEEP); 188622ce0148SMatthew Ahrens if (mdb_vread(aux, len, sav->sav_vdevs) == -1) { 1887ec9f632eSEric Schrock mdb_free(aux, len); 1888ec9f632eSEric Schrock mdb_warn("failed to read l2cache vdevs at %p", 1889ec9f632eSEric Schrock sav->sav_vdevs); 1890ec9f632eSEric Schrock return (DCMD_ERR); 1891ec9f632eSEric Schrock } 1892ec9f632eSEric Schrock 1893ec9f632eSEric Schrock mdb_printf("%-?s %-9s %-12s %s\n", "-", "-", "-", name); 1894ec9f632eSEric Schrock 1895ec9f632eSEric Schrock for (i = 0; i < sav->sav_count; i++) { 1896ec9f632eSEric Schrock ret = mdb_call_dcmd("vdev", aux[i], flags, 3, v); 1897ec9f632eSEric Schrock if (ret != DCMD_OK) { 1898ec9f632eSEric Schrock mdb_free(aux, len); 1899ec9f632eSEric Schrock return (ret); 1900ec9f632eSEric Schrock } 1901ec9f632eSEric Schrock } 1902ec9f632eSEric Schrock 1903ec9f632eSEric Schrock mdb_free(aux, len); 1904ec9f632eSEric Schrock } 1905ec9f632eSEric Schrock 1906ec9f632eSEric Schrock return (0); 1907ec9f632eSEric Schrock } 1908ec9f632eSEric Schrock 1909fa9e4066Sahrens /* 1910fa9e4066Sahrens * ::spa_vdevs 1911fa9e4066Sahrens * 19122e4c9986SGeorge Wilson * -e Include error stats 19132e4c9986SGeorge Wilson * -m Include metaslab information 19142e4c9986SGeorge Wilson * -M Include metaslab group information 19152e4c9986SGeorge Wilson * -h Include histogram information (requires -m or -M) 1916fa9e4066Sahrens * 1917fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1918c5904d13Seschrock * This is accomplished by invoking "::vdev -re" on the root vdev, as well as 1919c5904d13Seschrock * iterating over the cache devices. 1920fa9e4066Sahrens */ 1921fa9e4066Sahrens /* ARGSUSED */ 1922fa9e4066Sahrens static int 1923fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1924fa9e4066Sahrens { 1925c5904d13Seschrock mdb_arg_t v[3]; 1926ec9f632eSEric Schrock int ret; 19272e4c9986SGeorge Wilson char opts[100] = "-r"; 19282e4c9986SGeorge Wilson int spa_flags = 0; 1929fa9e4066Sahrens 1930fa9e4066Sahrens if (mdb_getopts(argc, argv, 19312e4c9986SGeorge Wilson 'e', MDB_OPT_SETBITS, SPA_FLAG_ERRORS, &spa_flags, 19322e4c9986SGeorge Wilson 'm', MDB_OPT_SETBITS, SPA_FLAG_METASLABS, &spa_flags, 19332e4c9986SGeorge Wilson 'M', MDB_OPT_SETBITS, SPA_FLAG_METASLAB_GROUPS, &spa_flags, 19342e4c9986SGeorge Wilson 'h', MDB_OPT_SETBITS, SPA_FLAG_HISTOGRAMS, &spa_flags, 1935fa9e4066Sahrens NULL) != argc) 1936fa9e4066Sahrens return (DCMD_USAGE); 1937fa9e4066Sahrens 1938fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1939fa9e4066Sahrens return (DCMD_USAGE); 1940fa9e4066Sahrens 194122ce0148SMatthew Ahrens mdb_spa_vdevs_t spa; 194222ce0148SMatthew Ahrens if (mdb_ctf_vread(&spa, "spa_t", "mdb_spa_vdevs_t", addr, 0) == -1) 1943fa9e4066Sahrens return (DCMD_ERR); 1944fa9e4066Sahrens 1945088e9d47Seschrock /* 1946088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1947088e9d47Seschrock */ 1948088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1949088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1950088e9d47Seschrock return (DCMD_OK); 1951088e9d47Seschrock } 1952088e9d47Seschrock 19532e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_ERRORS) 19542e4c9986SGeorge Wilson strcat(opts, "e"); 19552e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLABS) 19562e4c9986SGeorge Wilson strcat(opts, "m"); 19572e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_METASLAB_GROUPS) 19582e4c9986SGeorge Wilson strcat(opts, "M"); 19592e4c9986SGeorge Wilson if (spa_flags & SPA_FLAG_HISTOGRAMS) 19602e4c9986SGeorge Wilson strcat(opts, "h"); 19612e4c9986SGeorge Wilson 1962c5904d13Seschrock v[0].a_type = MDB_TYPE_STRING; 19632e4c9986SGeorge Wilson v[0].a_un.a_str = opts; 1964fa9e4066Sahrens 1965c5904d13Seschrock ret = mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1966c5904d13Seschrock flags, 1, v); 1967c5904d13Seschrock if (ret != DCMD_OK) 1968c5904d13Seschrock return (ret); 1969c5904d13Seschrock 1970ec9f632eSEric Schrock if (spa_print_aux(&spa.spa_l2cache, flags, v, "cache") != 0 || 1971ec9f632eSEric Schrock spa_print_aux(&spa.spa_spares, flags, v, "spares") != 0) 1972ec9f632eSEric Schrock return (DCMD_ERR); 1973c5904d13Seschrock 1974c5904d13Seschrock return (DCMD_OK); 1975fa9e4066Sahrens } 1976fa9e4066Sahrens 1977ccae0b50Seschrock /* 1978ccae0b50Seschrock * ::zio 1979ccae0b50Seschrock * 1980ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1981ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1982ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1983ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1984ccae0b50Seschrock * 1985c55e05cbSMatthew Ahrens * ADDRESS TYPE STAGE WAITER TIME_ELAPSED 1986ccae0b50Seschrock * 1987ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1988ccae0b50Seschrock * descend down the tree. 1989ccae0b50Seschrock */ 1990fac3008cSeschrock 1991c55e05cbSMatthew Ahrens #define ZIO_MAXINDENT 7 1992a3f829aeSBill Moore #define ZIO_MAXWIDTH (sizeof (uintptr_t) * 2 + ZIO_MAXINDENT) 1993a3f829aeSBill Moore #define ZIO_WALK_SELF 0 1994a3f829aeSBill Moore #define ZIO_WALK_CHILD 1 1995a3f829aeSBill Moore #define ZIO_WALK_PARENT 2 1996a3f829aeSBill Moore 1997a3f829aeSBill Moore typedef struct zio_print_args { 1998a3f829aeSBill Moore int zpa_current_depth; 1999a3f829aeSBill Moore int zpa_min_depth; 2000a3f829aeSBill Moore int zpa_max_depth; 2001a3f829aeSBill Moore int zpa_type; 2002a3f829aeSBill Moore uint_t zpa_flags; 2003a3f829aeSBill Moore } zio_print_args_t; 2004a3f829aeSBill Moore 200528e4da25SMatthew Ahrens typedef struct mdb_zio { 200628e4da25SMatthew Ahrens enum zio_type io_type; 200728e4da25SMatthew Ahrens enum zio_stage io_stage; 2008d5ee8a13SMatthew Ahrens uintptr_t io_waiter; 2009d5ee8a13SMatthew Ahrens uintptr_t io_spa; 201028e4da25SMatthew Ahrens struct { 201128e4da25SMatthew Ahrens struct { 2012d5ee8a13SMatthew Ahrens uintptr_t list_next; 201328e4da25SMatthew Ahrens } list_head; 201428e4da25SMatthew Ahrens } io_parent_list; 201528e4da25SMatthew Ahrens int io_error; 201628e4da25SMatthew Ahrens } mdb_zio_t; 201728e4da25SMatthew Ahrens 2018c55e05cbSMatthew Ahrens typedef struct mdb_zio_timestamp { 2019c55e05cbSMatthew Ahrens hrtime_t io_timestamp; 2020c55e05cbSMatthew Ahrens } mdb_zio_timestamp_t; 2021c55e05cbSMatthew Ahrens 2022a3f829aeSBill Moore static int zio_child_cb(uintptr_t addr, const void *unknown, void *arg); 2023fac3008cSeschrock 2024ccae0b50Seschrock static int 2025c55e05cbSMatthew Ahrens zio_print_cb(uintptr_t addr, zio_print_args_t *zpa) 2026ccae0b50Seschrock { 2027ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 2028a3f829aeSBill Moore int indent = zpa->zpa_current_depth; 2029ccae0b50Seschrock const char *type, *stage; 2030a3f829aeSBill Moore uintptr_t laddr; 2031c55e05cbSMatthew Ahrens mdb_zio_t zio; 2032c55e05cbSMatthew Ahrens mdb_zio_timestamp_t zio_timestamp = { 0 }; 2033c55e05cbSMatthew Ahrens 2034c55e05cbSMatthew Ahrens if (mdb_ctf_vread(&zio, ZFS_STRUCT "zio", "mdb_zio_t", addr, 0) == -1) 2035c55e05cbSMatthew Ahrens return (WALK_ERR); 2036c55e05cbSMatthew Ahrens (void) mdb_ctf_vread(&zio_timestamp, ZFS_STRUCT "zio", 2037c55e05cbSMatthew Ahrens "mdb_zio_timestamp_t", addr, MDB_CTF_VREAD_QUIET); 2038ccae0b50Seschrock 2039a3f829aeSBill Moore if (indent > ZIO_MAXINDENT) 2040a3f829aeSBill Moore indent = ZIO_MAXINDENT; 2041ccae0b50Seschrock 2042ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 2043ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 2044ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 2045ccae0b50Seschrock return (WALK_ERR); 2046ccae0b50Seschrock } 2047ccae0b50Seschrock 2048c55e05cbSMatthew Ahrens if ((type = mdb_ctf_enum_name(type_enum, zio.io_type)) != NULL) 2049ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 2050ccae0b50Seschrock else 2051ccae0b50Seschrock type = "?"; 2052ccae0b50Seschrock 2053c55e05cbSMatthew Ahrens if (zio.io_error == 0) { 2054c55e05cbSMatthew Ahrens stage = mdb_ctf_enum_name(stage_enum, zio.io_stage); 205528e4da25SMatthew Ahrens if (stage != NULL) 205628e4da25SMatthew Ahrens stage += sizeof ("ZIO_STAGE_") - 1; 205728e4da25SMatthew Ahrens else 205828e4da25SMatthew Ahrens stage = "?"; 205928e4da25SMatthew Ahrens } else { 206028e4da25SMatthew Ahrens stage = "FAILED"; 206128e4da25SMatthew Ahrens } 2062ccae0b50Seschrock 2063a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_min_depth) { 2064a3f829aeSBill Moore if (zpa->zpa_flags & DCMD_PIPE_OUT) { 2065a3f829aeSBill Moore mdb_printf("%?p\n", addr); 2066a3f829aeSBill Moore } else { 2067a3f829aeSBill Moore mdb_printf("%*s%-*p %-5s %-16s ", indent, "", 2068a3f829aeSBill Moore ZIO_MAXWIDTH - indent, addr, type, stage); 2069d5ee8a13SMatthew Ahrens if (zio.io_waiter != 0) 2070d5ee8a13SMatthew Ahrens mdb_printf("%-16lx ", zio.io_waiter); 2071a3f829aeSBill Moore else 2072c55e05cbSMatthew Ahrens mdb_printf("%-16s ", "-"); 2073c55e05cbSMatthew Ahrens #ifdef _KERNEL 2074c55e05cbSMatthew Ahrens if (zio_timestamp.io_timestamp != 0) { 2075c55e05cbSMatthew Ahrens mdb_printf("%llums", (mdb_gethrtime() - 2076c55e05cbSMatthew Ahrens zio_timestamp.io_timestamp) / 2077c55e05cbSMatthew Ahrens 1000000); 2078c55e05cbSMatthew Ahrens } else { 2079c55e05cbSMatthew Ahrens mdb_printf("%-12s ", "-"); 2080c55e05cbSMatthew Ahrens } 2081c55e05cbSMatthew Ahrens #else 2082c55e05cbSMatthew Ahrens mdb_printf("%-12s ", "-"); 2083c55e05cbSMatthew Ahrens #endif 2084c55e05cbSMatthew Ahrens mdb_printf("\n"); 2085a3f829aeSBill Moore } 2086a3f829aeSBill Moore } 2087a3f829aeSBill Moore 2088a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_max_depth) 2089a3f829aeSBill Moore return (WALK_NEXT); 2090ccae0b50Seschrock 2091a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 209228e4da25SMatthew Ahrens laddr = addr + mdb_ctf_offsetof_by_name(ZFS_STRUCT "zio", 209328e4da25SMatthew Ahrens "io_parent_list"); 2094ccae0b50Seschrock else 209528e4da25SMatthew Ahrens laddr = addr + mdb_ctf_offsetof_by_name(ZFS_STRUCT "zio", 209628e4da25SMatthew Ahrens "io_child_list"); 2097ccae0b50Seschrock 2098a3f829aeSBill Moore zpa->zpa_current_depth++; 2099a3f829aeSBill Moore if (mdb_pwalk("list", zio_child_cb, zpa, laddr) != 0) { 2100a3f829aeSBill Moore mdb_warn("failed to walk zio_t children at %p\n", laddr); 2101ccae0b50Seschrock return (WALK_ERR); 2102ccae0b50Seschrock } 2103a3f829aeSBill Moore zpa->zpa_current_depth--; 2104ccae0b50Seschrock 2105ccae0b50Seschrock return (WALK_NEXT); 2106ccae0b50Seschrock } 2107ccae0b50Seschrock 2108a3f829aeSBill Moore /* ARGSUSED */ 2109ccae0b50Seschrock static int 2110a3f829aeSBill Moore zio_child_cb(uintptr_t addr, const void *unknown, void *arg) 2111ccae0b50Seschrock { 2112a3f829aeSBill Moore zio_link_t zl; 2113a3f829aeSBill Moore uintptr_t ziop; 2114a3f829aeSBill Moore zio_print_args_t *zpa = arg; 2115a3f829aeSBill Moore 2116a3f829aeSBill Moore if (mdb_vread(&zl, sizeof (zl), addr) == -1) { 2117a3f829aeSBill Moore mdb_warn("failed to read zio_link_t at %p", addr); 2118a3f829aeSBill Moore return (WALK_ERR); 2119a3f829aeSBill Moore } 2120a3f829aeSBill Moore 2121a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 2122a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_parent; 2123a3f829aeSBill Moore else 2124a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_child; 2125a3f829aeSBill Moore 212669962b56SMatthew Ahrens return (zio_print_cb(ziop, zpa)); 2127a3f829aeSBill Moore } 2128a3f829aeSBill Moore 2129a3f829aeSBill Moore /* ARGSUSED */ 2130a3f829aeSBill Moore static int 2131a3f829aeSBill Moore zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 2132a3f829aeSBill Moore { 2133a3f829aeSBill Moore zio_print_args_t zpa = { 0 }; 2134ccae0b50Seschrock 2135ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 2136ccae0b50Seschrock return (DCMD_USAGE); 2137ccae0b50Seschrock 2138a3f829aeSBill Moore if (mdb_getopts(argc, argv, 2139a3f829aeSBill Moore 'r', MDB_OPT_SETBITS, INT_MAX, &zpa.zpa_max_depth, 2140a3f829aeSBill Moore 'c', MDB_OPT_SETBITS, ZIO_WALK_CHILD, &zpa.zpa_type, 2141a3f829aeSBill Moore 'p', MDB_OPT_SETBITS, ZIO_WALK_PARENT, &zpa.zpa_type, 2142a3f829aeSBill Moore NULL) != argc) 2143a3f829aeSBill Moore return (DCMD_USAGE); 2144a3f829aeSBill Moore 2145a3f829aeSBill Moore zpa.zpa_flags = flags; 2146a3f829aeSBill Moore if (zpa.zpa_max_depth != 0) { 2147a3f829aeSBill Moore if (zpa.zpa_type == ZIO_WALK_SELF) 2148a3f829aeSBill Moore zpa.zpa_type = ZIO_WALK_CHILD; 2149a3f829aeSBill Moore } else if (zpa.zpa_type != ZIO_WALK_SELF) { 2150a3f829aeSBill Moore zpa.zpa_min_depth = 1; 2151a3f829aeSBill Moore zpa.zpa_max_depth = 1; 2152a3f829aeSBill Moore } 2153a3f829aeSBill Moore 2154c55e05cbSMatthew Ahrens if (!(flags & DCMD_PIPE_OUT) && DCMD_HDRSPEC(flags)) { 2155c55e05cbSMatthew Ahrens mdb_printf("%<u>%-*s %-5s %-16s %-16s %-12s%</u>\n", 2156c55e05cbSMatthew Ahrens ZIO_MAXWIDTH, "ADDRESS", "TYPE", "STAGE", "WAITER", 2157c55e05cbSMatthew Ahrens "TIME_ELAPSED"); 2158c55e05cbSMatthew Ahrens } 2159fac3008cSeschrock 2160c55e05cbSMatthew Ahrens if (zio_print_cb(addr, &zpa) != WALK_NEXT) 2161ccae0b50Seschrock return (DCMD_ERR); 2162ccae0b50Seschrock 2163ccae0b50Seschrock return (DCMD_OK); 2164ccae0b50Seschrock } 2165ccae0b50Seschrock 2166ccae0b50Seschrock /* 2167ccae0b50Seschrock * [addr]::zio_state 2168ccae0b50Seschrock * 2169ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 2170ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 2171ccae0b50Seschrock */ 2172ccae0b50Seschrock /*ARGSUSED*/ 2173ccae0b50Seschrock static int 2174ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 2175ccae0b50Seschrock { 2176ccae0b50Seschrock /* 2177ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 2178ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 2179ccae0b50Seschrock * non-existent spa_t. 2180ccae0b50Seschrock */ 2181ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 2182ccae0b50Seschrock addr = 0; 2183ccae0b50Seschrock 2184ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 2185ccae0b50Seschrock } 2186ccae0b50Seschrock 2187*dcbf3bd6SGeorge Wilson typedef struct mdb_multilist { 2188*dcbf3bd6SGeorge Wilson uint64_t ml_num_sublists; 2189*dcbf3bd6SGeorge Wilson uintptr_t ml_sublists; 2190*dcbf3bd6SGeorge Wilson } mdb_multilist_t; 2191*dcbf3bd6SGeorge Wilson 2192*dcbf3bd6SGeorge Wilson typedef struct multilist_walk_data { 2193*dcbf3bd6SGeorge Wilson uint64_t mwd_idx; 2194*dcbf3bd6SGeorge Wilson mdb_multilist_t mwd_ml; 2195*dcbf3bd6SGeorge Wilson } multilist_walk_data_t; 2196*dcbf3bd6SGeorge Wilson 2197*dcbf3bd6SGeorge Wilson /* ARGSUSED */ 2198*dcbf3bd6SGeorge Wilson static int 2199*dcbf3bd6SGeorge Wilson multilist_print_cb(uintptr_t addr, const void *unknown, void *arg) 2200*dcbf3bd6SGeorge Wilson { 2201*dcbf3bd6SGeorge Wilson mdb_printf("%#lr\n", addr); 2202*dcbf3bd6SGeorge Wilson return (WALK_NEXT); 2203*dcbf3bd6SGeorge Wilson } 2204*dcbf3bd6SGeorge Wilson 2205*dcbf3bd6SGeorge Wilson static int 2206*dcbf3bd6SGeorge Wilson multilist_walk_step(mdb_walk_state_t *wsp) 2207*dcbf3bd6SGeorge Wilson { 2208*dcbf3bd6SGeorge Wilson multilist_walk_data_t *mwd = wsp->walk_data; 2209*dcbf3bd6SGeorge Wilson 2210*dcbf3bd6SGeorge Wilson if (mwd->mwd_idx >= mwd->mwd_ml.ml_num_sublists) 2211*dcbf3bd6SGeorge Wilson return (WALK_DONE); 2212*dcbf3bd6SGeorge Wilson 2213*dcbf3bd6SGeorge Wilson wsp->walk_addr = mwd->mwd_ml.ml_sublists + 2214*dcbf3bd6SGeorge Wilson mdb_ctf_sizeof_by_name("multilist_sublist_t") * mwd->mwd_idx + 2215*dcbf3bd6SGeorge Wilson mdb_ctf_offsetof_by_name("multilist_sublist_t", "mls_list"); 2216*dcbf3bd6SGeorge Wilson 2217*dcbf3bd6SGeorge Wilson mdb_pwalk("list", multilist_print_cb, (void*)NULL, wsp->walk_addr); 2218*dcbf3bd6SGeorge Wilson mwd->mwd_idx++; 2219*dcbf3bd6SGeorge Wilson 2220*dcbf3bd6SGeorge Wilson return (WALK_NEXT); 2221*dcbf3bd6SGeorge Wilson } 2222*dcbf3bd6SGeorge Wilson 2223*dcbf3bd6SGeorge Wilson static int 2224*dcbf3bd6SGeorge Wilson multilist_walk_init(mdb_walk_state_t *wsp) 2225*dcbf3bd6SGeorge Wilson { 2226*dcbf3bd6SGeorge Wilson multilist_walk_data_t *mwd; 2227*dcbf3bd6SGeorge Wilson 2228*dcbf3bd6SGeorge Wilson if (wsp->walk_addr == NULL) { 2229*dcbf3bd6SGeorge Wilson mdb_warn("must supply address of multilist_t\n"); 2230*dcbf3bd6SGeorge Wilson return (WALK_ERR); 2231*dcbf3bd6SGeorge Wilson } 2232*dcbf3bd6SGeorge Wilson 2233*dcbf3bd6SGeorge Wilson mwd = mdb_zalloc(sizeof (multilist_walk_data_t), UM_SLEEP | UM_GC); 2234*dcbf3bd6SGeorge Wilson if (mdb_ctf_vread(&mwd->mwd_ml, "multilist_t", "mdb_multilist_t", 2235*dcbf3bd6SGeorge Wilson wsp->walk_addr, 0) == -1) { 2236*dcbf3bd6SGeorge Wilson return (WALK_ERR); 2237*dcbf3bd6SGeorge Wilson } 2238*dcbf3bd6SGeorge Wilson 2239*dcbf3bd6SGeorge Wilson if (mwd->mwd_ml.ml_num_sublists == 0 || 2240*dcbf3bd6SGeorge Wilson mwd->mwd_ml.ml_sublists == NULL) { 2241*dcbf3bd6SGeorge Wilson mdb_warn("invalid or uninitialized multilist at %#lx\n", 2242*dcbf3bd6SGeorge Wilson wsp->walk_addr); 2243*dcbf3bd6SGeorge Wilson return (WALK_ERR); 2244*dcbf3bd6SGeorge Wilson } 2245*dcbf3bd6SGeorge Wilson 2246*dcbf3bd6SGeorge Wilson wsp->walk_data = mwd; 2247*dcbf3bd6SGeorge Wilson return (WALK_NEXT); 2248*dcbf3bd6SGeorge Wilson } 2249*dcbf3bd6SGeorge Wilson 2250fa9e4066Sahrens typedef struct txg_list_walk_data { 2251fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 2252fa9e4066Sahrens int lw_txgoff; 2253fa9e4066Sahrens int lw_maxoff; 2254fa9e4066Sahrens size_t lw_offset; 2255fa9e4066Sahrens void *lw_obj; 2256fa9e4066Sahrens } txg_list_walk_data_t; 2257fa9e4066Sahrens 2258fa9e4066Sahrens static int 2259fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 2260fa9e4066Sahrens { 2261fa9e4066Sahrens txg_list_walk_data_t *lwd; 2262fa9e4066Sahrens txg_list_t list; 2263fa9e4066Sahrens int i; 2264fa9e4066Sahrens 2265fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 2266fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 2267fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 2268fa9e4066Sahrens return (WALK_ERR); 2269fa9e4066Sahrens } 2270fa9e4066Sahrens 2271fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 2272fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 2273fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 2274fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 2275fa9e4066Sahrens UM_SLEEP | UM_GC); 2276fa9e4066Sahrens lwd->lw_txgoff = txg; 2277fa9e4066Sahrens lwd->lw_maxoff = maxoff; 2278fa9e4066Sahrens 2279fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 2280fa9e4066Sahrens wsp->walk_data = lwd; 2281fa9e4066Sahrens 2282fa9e4066Sahrens return (WALK_NEXT); 2283fa9e4066Sahrens } 2284fa9e4066Sahrens 2285fa9e4066Sahrens static int 2286fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 2287fa9e4066Sahrens { 2288fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 2289fa9e4066Sahrens } 2290fa9e4066Sahrens 2291fa9e4066Sahrens static int 2292fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 2293fa9e4066Sahrens { 2294fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 2295fa9e4066Sahrens } 2296fa9e4066Sahrens 2297fa9e4066Sahrens static int 2298fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 2299fa9e4066Sahrens { 2300fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 2301fa9e4066Sahrens } 2302fa9e4066Sahrens 2303fa9e4066Sahrens static int 2304fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 2305fa9e4066Sahrens { 2306fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 2307fa9e4066Sahrens } 2308fa9e4066Sahrens 2309fa9e4066Sahrens static int 2310fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 2311fa9e4066Sahrens { 2312fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 2313fa9e4066Sahrens } 2314fa9e4066Sahrens 2315fa9e4066Sahrens static int 2316fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 2317fa9e4066Sahrens { 2318fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 2319fa9e4066Sahrens uintptr_t addr; 2320fa9e4066Sahrens txg_node_t *node; 2321fa9e4066Sahrens int status; 2322fa9e4066Sahrens 2323fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 2324fa9e4066Sahrens lwd->lw_txgoff++; 2325fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 2326fa9e4066Sahrens } 2327fa9e4066Sahrens 2328fa9e4066Sahrens if (wsp->walk_addr == NULL) 2329fa9e4066Sahrens return (WALK_DONE); 2330fa9e4066Sahrens 2331fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 2332fa9e4066Sahrens 2333fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 2334fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 2335fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 2336fa9e4066Sahrens return (WALK_ERR); 2337fa9e4066Sahrens } 2338fa9e4066Sahrens 2339fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 2340fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 2341fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 2342fa9e4066Sahrens 2343fa9e4066Sahrens return (status); 2344fa9e4066Sahrens } 2345fa9e4066Sahrens 2346fa9e4066Sahrens /* 2347fa9e4066Sahrens * ::walk spa 2348fa9e4066Sahrens * 2349fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 2350fa9e4066Sahrens * a layered avl walk. 2351fa9e4066Sahrens */ 2352fa9e4066Sahrens static int 2353fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 2354fa9e4066Sahrens { 2355fa9e4066Sahrens GElf_Sym sym; 2356fa9e4066Sahrens 2357fa9e4066Sahrens if (wsp->walk_addr != NULL) { 2358fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 2359fa9e4066Sahrens return (WALK_ERR); 2360fa9e4066Sahrens } 2361fa9e4066Sahrens 2362fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 2363fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 2364fa9e4066Sahrens return (WALK_ERR); 2365fa9e4066Sahrens } 2366fa9e4066Sahrens 2367fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 2368fa9e4066Sahrens 2369fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 2370fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 2371fa9e4066Sahrens return (WALK_ERR); 2372fa9e4066Sahrens } 2373fa9e4066Sahrens 2374fa9e4066Sahrens return (WALK_NEXT); 2375fa9e4066Sahrens } 2376fa9e4066Sahrens 2377fa9e4066Sahrens static int 2378fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 2379fa9e4066Sahrens { 238022ce0148SMatthew Ahrens return (wsp->walk_callback(wsp->walk_addr, NULL, wsp->walk_cbdata)); 2381fa9e4066Sahrens } 2382fa9e4066Sahrens 2383ccae0b50Seschrock /* 2384ccae0b50Seschrock * [addr]::walk zio 2385ccae0b50Seschrock * 2386ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 2387ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 2388ccae0b50Seschrock * structures to a particular pool. 2389ccae0b50Seschrock */ 2390ccae0b50Seschrock static int 2391ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 2392ccae0b50Seschrock { 2393dee140dfSMatthew Ahrens wsp->walk_data = (void *)wsp->walk_addr; 2394ccae0b50Seschrock 2395ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 2396ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 2397ccae0b50Seschrock return (WALK_ERR); 2398ccae0b50Seschrock } 2399ccae0b50Seschrock 2400ccae0b50Seschrock return (WALK_NEXT); 2401ccae0b50Seschrock } 2402ccae0b50Seschrock 2403ccae0b50Seschrock static int 2404ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 2405ccae0b50Seschrock { 240628e4da25SMatthew Ahrens mdb_zio_t zio; 2407dee140dfSMatthew Ahrens uintptr_t spa = (uintptr_t)wsp->walk_data; 2408ccae0b50Seschrock 240928e4da25SMatthew Ahrens if (mdb_ctf_vread(&zio, ZFS_STRUCT "zio", "mdb_zio_t", 241028e4da25SMatthew Ahrens wsp->walk_addr, 0) == -1) 2411ccae0b50Seschrock return (WALK_ERR); 2412ccae0b50Seschrock 2413dee140dfSMatthew Ahrens if (spa != 0 && spa != zio.io_spa) 2414ccae0b50Seschrock return (WALK_NEXT); 2415ccae0b50Seschrock 2416ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 2417ccae0b50Seschrock } 2418ccae0b50Seschrock 2419ccae0b50Seschrock /* 2420ccae0b50Seschrock * [addr]::walk zio_root 2421ccae0b50Seschrock * 2422ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 2423ccae0b50Seschrock */ 2424ccae0b50Seschrock static int 2425ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 2426ccae0b50Seschrock { 242728e4da25SMatthew Ahrens mdb_zio_t zio; 2428dee140dfSMatthew Ahrens uintptr_t spa = (uintptr_t)wsp->walk_data; 2429ccae0b50Seschrock 243028e4da25SMatthew Ahrens if (mdb_ctf_vread(&zio, ZFS_STRUCT "zio", "mdb_zio_t", 243128e4da25SMatthew Ahrens wsp->walk_addr, 0) == -1) 2432ccae0b50Seschrock return (WALK_ERR); 2433ccae0b50Seschrock 2434dee140dfSMatthew Ahrens if (spa != 0 && spa != zio.io_spa) 2435ccae0b50Seschrock return (WALK_NEXT); 2436ccae0b50Seschrock 2437a3f829aeSBill Moore /* If the parent list is not empty, ignore */ 2438d5ee8a13SMatthew Ahrens if (zio.io_parent_list.list_head.list_next != 243928e4da25SMatthew Ahrens wsp->walk_addr + 244028e4da25SMatthew Ahrens mdb_ctf_offsetof_by_name(ZFS_STRUCT "zio", "io_parent_list") + 244128e4da25SMatthew Ahrens mdb_ctf_offsetof_by_name("struct list", "list_head")) 2442ccae0b50Seschrock return (WALK_NEXT); 2443ccae0b50Seschrock 2444ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 2445ccae0b50Seschrock } 2446ccae0b50Seschrock 244788b7b0f2SMatthew Ahrens /* 244888b7b0f2SMatthew Ahrens * ::zfs_blkstats 244988b7b0f2SMatthew Ahrens * 24502e4c9986SGeorge Wilson * -v print verbose per-level information 245188b7b0f2SMatthew Ahrens * 245288b7b0f2SMatthew Ahrens */ 245388b7b0f2SMatthew Ahrens static int 245488b7b0f2SMatthew Ahrens zfs_blkstats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 245588b7b0f2SMatthew Ahrens { 245688b7b0f2SMatthew Ahrens boolean_t verbose = B_FALSE; 245788b7b0f2SMatthew Ahrens zfs_all_blkstats_t stats; 245888b7b0f2SMatthew Ahrens dmu_object_type_t t; 245988b7b0f2SMatthew Ahrens zfs_blkstat_t *tzb; 246088b7b0f2SMatthew Ahrens uint64_t ditto; 246188b7b0f2SMatthew Ahrens dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES + 10]; 246288b7b0f2SMatthew Ahrens /* +10 in case it grew */ 246388b7b0f2SMatthew Ahrens 246488b7b0f2SMatthew Ahrens if (mdb_readvar(&dmu_ot, "dmu_ot") == -1) { 246588b7b0f2SMatthew Ahrens mdb_warn("failed to read 'dmu_ot'"); 246688b7b0f2SMatthew Ahrens return (DCMD_ERR); 246788b7b0f2SMatthew Ahrens } 246888b7b0f2SMatthew Ahrens 246988b7b0f2SMatthew Ahrens if (mdb_getopts(argc, argv, 247088b7b0f2SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 247188b7b0f2SMatthew Ahrens NULL) != argc) 247288b7b0f2SMatthew Ahrens return (DCMD_USAGE); 247388b7b0f2SMatthew Ahrens 247488b7b0f2SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 247588b7b0f2SMatthew Ahrens return (DCMD_USAGE); 247688b7b0f2SMatthew Ahrens 247728e4da25SMatthew Ahrens if (GETMEMB(addr, "spa", spa_dsl_pool, addr) || 247828e4da25SMatthew Ahrens GETMEMB(addr, "dsl_pool", dp_blkstats, addr) || 247988b7b0f2SMatthew Ahrens mdb_vread(&stats, sizeof (zfs_all_blkstats_t), addr) == -1) { 248088b7b0f2SMatthew Ahrens mdb_warn("failed to read data at %p;", addr); 248188b7b0f2SMatthew Ahrens mdb_printf("maybe no stats? run \"zpool scrub\" first."); 248288b7b0f2SMatthew Ahrens return (DCMD_ERR); 248388b7b0f2SMatthew Ahrens } 248488b7b0f2SMatthew Ahrens 2485ad135b5dSChristopher Siden tzb = &stats.zab_type[DN_MAX_LEVELS][DMU_OT_TOTAL]; 248688b7b0f2SMatthew Ahrens if (tzb->zb_gangs != 0) { 248788b7b0f2SMatthew Ahrens mdb_printf("Ganged blocks: %llu\n", 248888b7b0f2SMatthew Ahrens (longlong_t)tzb->zb_gangs); 248988b7b0f2SMatthew Ahrens } 249088b7b0f2SMatthew Ahrens 249188b7b0f2SMatthew Ahrens ditto = tzb->zb_ditto_2_of_2_samevdev + tzb->zb_ditto_2_of_3_samevdev + 249288b7b0f2SMatthew Ahrens tzb->zb_ditto_3_of_3_samevdev; 249388b7b0f2SMatthew Ahrens if (ditto != 0) { 249488b7b0f2SMatthew Ahrens mdb_printf("Dittoed blocks on same vdev: %llu\n", 249588b7b0f2SMatthew Ahrens (longlong_t)ditto); 249688b7b0f2SMatthew Ahrens } 249788b7b0f2SMatthew Ahrens 249888b7b0f2SMatthew Ahrens mdb_printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 249988b7b0f2SMatthew Ahrens "\t avg\t comp\t%%Total\tType\n"); 250088b7b0f2SMatthew Ahrens 2501ad135b5dSChristopher Siden for (t = 0; t <= DMU_OT_TOTAL; t++) { 250288b7b0f2SMatthew Ahrens char csize[NICENUM_BUFLEN], lsize[NICENUM_BUFLEN]; 250388b7b0f2SMatthew Ahrens char psize[NICENUM_BUFLEN], asize[NICENUM_BUFLEN]; 250488b7b0f2SMatthew Ahrens char avg[NICENUM_BUFLEN]; 250588b7b0f2SMatthew Ahrens char comp[NICENUM_BUFLEN], pct[NICENUM_BUFLEN]; 250688b7b0f2SMatthew Ahrens char typename[64]; 250788b7b0f2SMatthew Ahrens int l; 250888b7b0f2SMatthew Ahrens 250988b7b0f2SMatthew Ahrens 251088b7b0f2SMatthew Ahrens if (t == DMU_OT_DEFERRED) 251188b7b0f2SMatthew Ahrens strcpy(typename, "deferred free"); 2512ad135b5dSChristopher Siden else if (t == DMU_OT_OTHER) 2513ad135b5dSChristopher Siden strcpy(typename, "other"); 251488b7b0f2SMatthew Ahrens else if (t == DMU_OT_TOTAL) 251588b7b0f2SMatthew Ahrens strcpy(typename, "Total"); 251688b7b0f2SMatthew Ahrens else if (mdb_readstr(typename, sizeof (typename), 251788b7b0f2SMatthew Ahrens (uintptr_t)dmu_ot[t].ot_name) == -1) { 251888b7b0f2SMatthew Ahrens mdb_warn("failed to read type name"); 251988b7b0f2SMatthew Ahrens return (DCMD_ERR); 252088b7b0f2SMatthew Ahrens } 252188b7b0f2SMatthew Ahrens 252288b7b0f2SMatthew Ahrens if (stats.zab_type[DN_MAX_LEVELS][t].zb_asize == 0) 252388b7b0f2SMatthew Ahrens continue; 252488b7b0f2SMatthew Ahrens 252588b7b0f2SMatthew Ahrens for (l = -1; l < DN_MAX_LEVELS; l++) { 252688b7b0f2SMatthew Ahrens int level = (l == -1 ? DN_MAX_LEVELS : l); 252788b7b0f2SMatthew Ahrens zfs_blkstat_t *zb = &stats.zab_type[level][t]; 252888b7b0f2SMatthew Ahrens 252988b7b0f2SMatthew Ahrens if (zb->zb_asize == 0) 253088b7b0f2SMatthew Ahrens continue; 253188b7b0f2SMatthew Ahrens 253288b7b0f2SMatthew Ahrens /* 253388b7b0f2SMatthew Ahrens * Don't print each level unless requested. 253488b7b0f2SMatthew Ahrens */ 253588b7b0f2SMatthew Ahrens if (!verbose && level != DN_MAX_LEVELS) 253688b7b0f2SMatthew Ahrens continue; 253788b7b0f2SMatthew Ahrens 253888b7b0f2SMatthew Ahrens /* 253988b7b0f2SMatthew Ahrens * If all the space is level 0, don't print the 254088b7b0f2SMatthew Ahrens * level 0 separately. 254188b7b0f2SMatthew Ahrens */ 254288b7b0f2SMatthew Ahrens if (level == 0 && zb->zb_asize == 254388b7b0f2SMatthew Ahrens stats.zab_type[DN_MAX_LEVELS][t].zb_asize) 254488b7b0f2SMatthew Ahrens continue; 254588b7b0f2SMatthew Ahrens 254688b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_count, csize); 254788b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_lsize, lsize); 254888b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_psize, psize); 254988b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize, asize); 255088b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2551ff64c0f7SMatthew Ahrens (void) snprintfrac(comp, NICENUM_BUFLEN, 2552ff64c0f7SMatthew Ahrens zb->zb_lsize, zb->zb_psize, 2); 2553ff64c0f7SMatthew Ahrens (void) snprintfrac(pct, NICENUM_BUFLEN, 2554ff64c0f7SMatthew Ahrens 100 * zb->zb_asize, tzb->zb_asize, 2); 255588b7b0f2SMatthew Ahrens 255688b7b0f2SMatthew Ahrens mdb_printf("%6s\t%5s\t%5s\t%5s\t%5s" 255788b7b0f2SMatthew Ahrens "\t%5s\t%6s\t", 255888b7b0f2SMatthew Ahrens csize, lsize, psize, asize, avg, comp, pct); 255988b7b0f2SMatthew Ahrens 256088b7b0f2SMatthew Ahrens if (level == DN_MAX_LEVELS) 256188b7b0f2SMatthew Ahrens mdb_printf("%s\n", typename); 256288b7b0f2SMatthew Ahrens else 256388b7b0f2SMatthew Ahrens mdb_printf(" L%d %s\n", 256488b7b0f2SMatthew Ahrens level, typename); 256588b7b0f2SMatthew Ahrens } 256688b7b0f2SMatthew Ahrens } 256788b7b0f2SMatthew Ahrens 256888b7b0f2SMatthew Ahrens return (DCMD_OK); 256988b7b0f2SMatthew Ahrens } 257088b7b0f2SMatthew Ahrens 2571d5ee8a13SMatthew Ahrens typedef struct mdb_reference { 2572d5ee8a13SMatthew Ahrens uintptr_t ref_holder; 2573d5ee8a13SMatthew Ahrens uintptr_t ref_removed; 2574d5ee8a13SMatthew Ahrens uint64_t ref_number; 2575d5ee8a13SMatthew Ahrens } mdb_reference_t; 2576d5ee8a13SMatthew Ahrens 25779966ca11SMatthew Ahrens /* ARGSUSED */ 25789966ca11SMatthew Ahrens static int 25799966ca11SMatthew Ahrens reference_cb(uintptr_t addr, const void *ignored, void *arg) 25809966ca11SMatthew Ahrens { 2581d5ee8a13SMatthew Ahrens mdb_reference_t ref; 25823f9d6ad7SLin Ling boolean_t holder_is_str = B_FALSE; 25839966ca11SMatthew Ahrens char holder_str[128]; 25849966ca11SMatthew Ahrens boolean_t removed = (boolean_t)arg; 25859966ca11SMatthew Ahrens 2586d5ee8a13SMatthew Ahrens if (mdb_ctf_vread(&ref, "reference_t", "mdb_reference_t", addr, 2587d5ee8a13SMatthew Ahrens 0) == -1) 2588d5ee8a13SMatthew Ahrens return (DCMD_ERR); 25899966ca11SMatthew Ahrens 2590d5ee8a13SMatthew Ahrens if (mdb_readstr(holder_str, sizeof (holder_str), 2591d5ee8a13SMatthew Ahrens ref.ref_holder) != -1) 25923f9d6ad7SLin Ling holder_is_str = strisprint(holder_str); 25939966ca11SMatthew Ahrens 25949966ca11SMatthew Ahrens if (removed) 25959966ca11SMatthew Ahrens mdb_printf("removed "); 25969966ca11SMatthew Ahrens mdb_printf("reference "); 2597d5ee8a13SMatthew Ahrens if (ref.ref_number != 1) 2598d5ee8a13SMatthew Ahrens mdb_printf("with count=%llu ", ref.ref_number); 2599d5ee8a13SMatthew Ahrens mdb_printf("with tag %lx", ref.ref_holder); 26009966ca11SMatthew Ahrens if (holder_is_str) 26019966ca11SMatthew Ahrens mdb_printf(" \"%s\"", holder_str); 26029966ca11SMatthew Ahrens mdb_printf(", held at:\n"); 26039966ca11SMatthew Ahrens 26049966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", addr, DCMD_ADDRSPEC, 0, NULL); 26059966ca11SMatthew Ahrens 26069966ca11SMatthew Ahrens if (removed) { 26079966ca11SMatthew Ahrens mdb_printf("removed at:\n"); 2608d5ee8a13SMatthew Ahrens (void) mdb_call_dcmd("whatis", ref.ref_removed, 26099966ca11SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 26109966ca11SMatthew Ahrens } 26119966ca11SMatthew Ahrens 26129966ca11SMatthew Ahrens mdb_printf("\n"); 26139966ca11SMatthew Ahrens 26149966ca11SMatthew Ahrens return (WALK_NEXT); 26159966ca11SMatthew Ahrens } 26169966ca11SMatthew Ahrens 2617d5ee8a13SMatthew Ahrens typedef struct mdb_refcount { 2618d5ee8a13SMatthew Ahrens uint64_t rc_count; 2619d5ee8a13SMatthew Ahrens } mdb_refcount_t; 2620d5ee8a13SMatthew Ahrens 2621d5ee8a13SMatthew Ahrens typedef struct mdb_refcount_removed { 2622d5ee8a13SMatthew Ahrens uint64_t rc_removed_count; 2623d5ee8a13SMatthew Ahrens } mdb_refcount_removed_t; 2624d5ee8a13SMatthew Ahrens 2625d5ee8a13SMatthew Ahrens typedef struct mdb_refcount_tracked { 2626d5ee8a13SMatthew Ahrens boolean_t rc_tracked; 2627d5ee8a13SMatthew Ahrens } mdb_refcount_tracked_t; 2628d5ee8a13SMatthew Ahrens 26299966ca11SMatthew Ahrens /* ARGSUSED */ 26309966ca11SMatthew Ahrens static int 26319966ca11SMatthew Ahrens refcount(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 26329966ca11SMatthew Ahrens { 2633d5ee8a13SMatthew Ahrens mdb_refcount_t rc; 2634d5ee8a13SMatthew Ahrens mdb_refcount_removed_t rcr; 2635d5ee8a13SMatthew Ahrens mdb_refcount_tracked_t rct; 2636d5ee8a13SMatthew Ahrens int off; 263728e4da25SMatthew Ahrens boolean_t released = B_FALSE; 26389966ca11SMatthew Ahrens 26399966ca11SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 26409966ca11SMatthew Ahrens return (DCMD_USAGE); 26419966ca11SMatthew Ahrens 264228e4da25SMatthew Ahrens if (mdb_getopts(argc, argv, 264328e4da25SMatthew Ahrens 'r', MDB_OPT_SETBITS, B_TRUE, &released, 264428e4da25SMatthew Ahrens NULL) != argc) 264528e4da25SMatthew Ahrens return (DCMD_USAGE); 264628e4da25SMatthew Ahrens 2647d5ee8a13SMatthew Ahrens if (mdb_ctf_vread(&rc, "refcount_t", "mdb_refcount_t", addr, 2648d5ee8a13SMatthew Ahrens 0) == -1) 26499966ca11SMatthew Ahrens return (DCMD_ERR); 26509966ca11SMatthew Ahrens 2651d5ee8a13SMatthew Ahrens if (mdb_ctf_vread(&rcr, "refcount_t", "mdb_refcount_removed_t", addr, 2652d5ee8a13SMatthew Ahrens MDB_CTF_VREAD_QUIET) == -1) { 2653d5ee8a13SMatthew Ahrens mdb_printf("refcount_t at %p has %llu holds (untracked)\n", 2654d5ee8a13SMatthew Ahrens addr, (longlong_t)rc.rc_count); 265528e4da25SMatthew Ahrens return (DCMD_OK); 265628e4da25SMatthew Ahrens } 265728e4da25SMatthew Ahrens 2658d5ee8a13SMatthew Ahrens if (mdb_ctf_vread(&rct, "refcount_t", "mdb_refcount_tracked_t", addr, 2659d5ee8a13SMatthew Ahrens MDB_CTF_VREAD_QUIET) == -1) { 2660d5ee8a13SMatthew Ahrens /* If this is an old target, it might be tracked. */ 2661d5ee8a13SMatthew Ahrens rct.rc_tracked = B_TRUE; 2662d5ee8a13SMatthew Ahrens } 2663d5ee8a13SMatthew Ahrens 26649966ca11SMatthew Ahrens mdb_printf("refcount_t at %p has %llu current holds, " 26659966ca11SMatthew Ahrens "%llu recently released holds\n", 2666d5ee8a13SMatthew Ahrens addr, (longlong_t)rc.rc_count, (longlong_t)rcr.rc_removed_count); 26679966ca11SMatthew Ahrens 2668d5ee8a13SMatthew Ahrens if (rct.rc_tracked && rc.rc_count > 0) 26699966ca11SMatthew Ahrens mdb_printf("current holds:\n"); 2670d5ee8a13SMatthew Ahrens off = mdb_ctf_offsetof_by_name("refcount_t", "rc_list"); 2671d5ee8a13SMatthew Ahrens if (off == -1) 26729966ca11SMatthew Ahrens return (DCMD_ERR); 2673d5ee8a13SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_FALSE, addr + off); 2674d5ee8a13SMatthew Ahrens 2675d5ee8a13SMatthew Ahrens if (released && rcr.rc_removed_count > 0) { 2676d5ee8a13SMatthew Ahrens mdb_printf("released holds:\n"); 26779966ca11SMatthew Ahrens 2678d5ee8a13SMatthew Ahrens off = mdb_ctf_offsetof_by_name("refcount_t", "rc_removed"); 2679d5ee8a13SMatthew Ahrens if (off == -1) 268028e4da25SMatthew Ahrens return (DCMD_ERR); 2681421ff020SPrakash Surya mdb_pwalk("list", reference_cb, (void*)B_TRUE, addr + off); 268228e4da25SMatthew Ahrens } 26839966ca11SMatthew Ahrens 26849966ca11SMatthew Ahrens return (DCMD_OK); 26859966ca11SMatthew Ahrens } 26869966ca11SMatthew Ahrens 26870a586ceaSMark Shellenbaum /* ARGSUSED */ 26880a586ceaSMark Shellenbaum static int 26890a586ceaSMark Shellenbaum sa_attr_table(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 26900a586ceaSMark Shellenbaum { 26910a586ceaSMark Shellenbaum sa_attr_table_t *table; 26920a586ceaSMark Shellenbaum sa_os_t sa_os; 26930a586ceaSMark Shellenbaum char *name; 26940a586ceaSMark Shellenbaum int i; 26950a586ceaSMark Shellenbaum 26960a586ceaSMark Shellenbaum if (mdb_vread(&sa_os, sizeof (sa_os_t), addr) == -1) { 26970a586ceaSMark Shellenbaum mdb_warn("failed to read sa_os at %p", addr); 26980a586ceaSMark Shellenbaum return (DCMD_ERR); 26990a586ceaSMark Shellenbaum } 27000a586ceaSMark Shellenbaum 27010a586ceaSMark Shellenbaum table = mdb_alloc(sizeof (sa_attr_table_t) * sa_os.sa_num_attrs, 27020a586ceaSMark Shellenbaum UM_SLEEP | UM_GC); 27030a586ceaSMark Shellenbaum name = mdb_alloc(MAXPATHLEN, UM_SLEEP | UM_GC); 27040a586ceaSMark Shellenbaum 27050a586ceaSMark Shellenbaum if (mdb_vread(table, sizeof (sa_attr_table_t) * sa_os.sa_num_attrs, 27060a586ceaSMark Shellenbaum (uintptr_t)sa_os.sa_attr_table) == -1) { 27070a586ceaSMark Shellenbaum mdb_warn("failed to read sa_os at %p", addr); 27080a586ceaSMark Shellenbaum return (DCMD_ERR); 27090a586ceaSMark Shellenbaum } 27100a586ceaSMark Shellenbaum 27110a586ceaSMark Shellenbaum mdb_printf("%<u>%-10s %-10s %-10s %-10s %s%</u>\n", 27120a586ceaSMark Shellenbaum "ATTR ID", "REGISTERED", "LENGTH", "BSWAP", "NAME"); 27130a586ceaSMark Shellenbaum for (i = 0; i != sa_os.sa_num_attrs; i++) { 27140a586ceaSMark Shellenbaum mdb_readstr(name, MAXPATHLEN, (uintptr_t)table[i].sa_name); 27150a586ceaSMark Shellenbaum mdb_printf("%5x %8x %8x %8x %-s\n", 27160a586ceaSMark Shellenbaum (int)table[i].sa_attr, (int)table[i].sa_registered, 27170a586ceaSMark Shellenbaum (int)table[i].sa_length, table[i].sa_byteswap, name); 27180a586ceaSMark Shellenbaum } 27190a586ceaSMark Shellenbaum 27200a586ceaSMark Shellenbaum return (DCMD_OK); 27210a586ceaSMark Shellenbaum } 27220a586ceaSMark Shellenbaum 27230a586ceaSMark Shellenbaum static int 27240a586ceaSMark Shellenbaum sa_get_off_table(uintptr_t addr, uint32_t **off_tab, int attr_count) 27250a586ceaSMark Shellenbaum { 27260a586ceaSMark Shellenbaum uintptr_t idx_table; 27270a586ceaSMark Shellenbaum 272828e4da25SMatthew Ahrens if (GETMEMB(addr, "sa_idx_tab", sa_idx_tab, idx_table)) { 27290a586ceaSMark Shellenbaum mdb_printf("can't find offset table in sa_idx_tab\n"); 27300a586ceaSMark Shellenbaum return (-1); 27310a586ceaSMark Shellenbaum } 27320a586ceaSMark Shellenbaum 27330a586ceaSMark Shellenbaum *off_tab = mdb_alloc(attr_count * sizeof (uint32_t), 27340a586ceaSMark Shellenbaum UM_SLEEP | UM_GC); 27350a586ceaSMark Shellenbaum 27360a586ceaSMark Shellenbaum if (mdb_vread(*off_tab, 27370a586ceaSMark Shellenbaum attr_count * sizeof (uint32_t), idx_table) == -1) { 27380a586ceaSMark Shellenbaum mdb_warn("failed to attribute offset table %p", idx_table); 27390a586ceaSMark Shellenbaum return (-1); 27400a586ceaSMark Shellenbaum } 27410a586ceaSMark Shellenbaum 27420a586ceaSMark Shellenbaum return (DCMD_OK); 27430a586ceaSMark Shellenbaum } 27440a586ceaSMark Shellenbaum 27450a586ceaSMark Shellenbaum /*ARGSUSED*/ 27460a586ceaSMark Shellenbaum static int 27470a586ceaSMark Shellenbaum sa_attr_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 27480a586ceaSMark Shellenbaum { 27490a586ceaSMark Shellenbaum uint32_t *offset_tab; 27500a586ceaSMark Shellenbaum int attr_count; 27510a586ceaSMark Shellenbaum uint64_t attr_id; 27520a586ceaSMark Shellenbaum uintptr_t attr_addr; 27530a586ceaSMark Shellenbaum uintptr_t bonus_tab, spill_tab; 27540a586ceaSMark Shellenbaum uintptr_t db_bonus, db_spill; 27550a586ceaSMark Shellenbaum uintptr_t os, os_sa; 27560a586ceaSMark Shellenbaum uintptr_t db_data; 27570a586ceaSMark Shellenbaum 27580a586ceaSMark Shellenbaum if (argc != 1) 27590a586ceaSMark Shellenbaum return (DCMD_USAGE); 27600a586ceaSMark Shellenbaum 27610a586ceaSMark Shellenbaum if (argv[0].a_type == MDB_TYPE_STRING) 27620a586ceaSMark Shellenbaum attr_id = mdb_strtoull(argv[0].a_un.a_str); 27630a586ceaSMark Shellenbaum else 27640a586ceaSMark Shellenbaum return (DCMD_USAGE); 27650a586ceaSMark Shellenbaum 276628e4da25SMatthew Ahrens if (GETMEMB(addr, "sa_handle", sa_bonus_tab, bonus_tab) || 276728e4da25SMatthew Ahrens GETMEMB(addr, "sa_handle", sa_spill_tab, spill_tab) || 276828e4da25SMatthew Ahrens GETMEMB(addr, "sa_handle", sa_os, os) || 276928e4da25SMatthew Ahrens GETMEMB(addr, "sa_handle", sa_bonus, db_bonus) || 277028e4da25SMatthew Ahrens GETMEMB(addr, "sa_handle", sa_spill, db_spill)) { 27710a586ceaSMark Shellenbaum mdb_printf("Can't find necessary information in sa_handle " 27720a586ceaSMark Shellenbaum "in sa_handle\n"); 27730a586ceaSMark Shellenbaum return (DCMD_ERR); 27740a586ceaSMark Shellenbaum } 27750a586ceaSMark Shellenbaum 277628e4da25SMatthew Ahrens if (GETMEMB(os, "objset", os_sa, os_sa)) { 27770a586ceaSMark Shellenbaum mdb_printf("Can't find os_sa in objset\n"); 27780a586ceaSMark Shellenbaum return (DCMD_ERR); 27790a586ceaSMark Shellenbaum } 27800a586ceaSMark Shellenbaum 278128e4da25SMatthew Ahrens if (GETMEMB(os_sa, "sa_os", sa_num_attrs, attr_count)) { 27820a586ceaSMark Shellenbaum mdb_printf("Can't find sa_num_attrs\n"); 27830a586ceaSMark Shellenbaum return (DCMD_ERR); 27840a586ceaSMark Shellenbaum } 27850a586ceaSMark Shellenbaum 27860a586ceaSMark Shellenbaum if (attr_id > attr_count) { 27870a586ceaSMark Shellenbaum mdb_printf("attribute id number is out of range\n"); 27880a586ceaSMark Shellenbaum return (DCMD_ERR); 27890a586ceaSMark Shellenbaum } 27900a586ceaSMark Shellenbaum 27910a586ceaSMark Shellenbaum if (bonus_tab) { 27920a586ceaSMark Shellenbaum if (sa_get_off_table(bonus_tab, &offset_tab, 27930a586ceaSMark Shellenbaum attr_count) == -1) { 27940a586ceaSMark Shellenbaum return (DCMD_ERR); 27950a586ceaSMark Shellenbaum } 27960a586ceaSMark Shellenbaum 279728e4da25SMatthew Ahrens if (GETMEMB(db_bonus, "dmu_buf", db_data, db_data)) { 27980a586ceaSMark Shellenbaum mdb_printf("can't find db_data in bonus dbuf\n"); 27990a586ceaSMark Shellenbaum return (DCMD_ERR); 28000a586ceaSMark Shellenbaum } 28010a586ceaSMark Shellenbaum } 28020a586ceaSMark Shellenbaum 28030a586ceaSMark Shellenbaum if (bonus_tab && !TOC_ATTR_PRESENT(offset_tab[attr_id]) && 28040a586ceaSMark Shellenbaum spill_tab == NULL) { 28050a586ceaSMark Shellenbaum mdb_printf("Attribute does not exist\n"); 28060a586ceaSMark Shellenbaum return (DCMD_ERR); 28070a586ceaSMark Shellenbaum } else if (!TOC_ATTR_PRESENT(offset_tab[attr_id]) && spill_tab) { 28080a586ceaSMark Shellenbaum if (sa_get_off_table(spill_tab, &offset_tab, 28090a586ceaSMark Shellenbaum attr_count) == -1) { 28100a586ceaSMark Shellenbaum return (DCMD_ERR); 28110a586ceaSMark Shellenbaum } 281228e4da25SMatthew Ahrens if (GETMEMB(db_spill, "dmu_buf", db_data, db_data)) { 28130a586ceaSMark Shellenbaum mdb_printf("can't find db_data in spill dbuf\n"); 28140a586ceaSMark Shellenbaum return (DCMD_ERR); 28150a586ceaSMark Shellenbaum } 28160a586ceaSMark Shellenbaum if (!TOC_ATTR_PRESENT(offset_tab[attr_id])) { 28170a586ceaSMark Shellenbaum mdb_printf("Attribute does not exist\n"); 28180a586ceaSMark Shellenbaum return (DCMD_ERR); 28190a586ceaSMark Shellenbaum } 28200a586ceaSMark Shellenbaum } 28210a586ceaSMark Shellenbaum attr_addr = db_data + TOC_OFF(offset_tab[attr_id]); 28220a586ceaSMark Shellenbaum mdb_printf("%p\n", attr_addr); 28230a586ceaSMark Shellenbaum return (DCMD_OK); 28240a586ceaSMark Shellenbaum } 28250a586ceaSMark Shellenbaum 28260a586ceaSMark Shellenbaum /* ARGSUSED */ 28270a586ceaSMark Shellenbaum static int 28280a586ceaSMark Shellenbaum zfs_ace_print_common(uintptr_t addr, uint_t flags, 28290a586ceaSMark Shellenbaum uint64_t id, uint32_t access_mask, uint16_t ace_flags, 28300a586ceaSMark Shellenbaum uint16_t ace_type, int verbose) 28310a586ceaSMark Shellenbaum { 28320a586ceaSMark Shellenbaum if (DCMD_HDRSPEC(flags) && !verbose) 28330a586ceaSMark Shellenbaum mdb_printf("%<u>%-?s %-8s %-8s %-8s %s%</u>\n", 28340a586ceaSMark Shellenbaum "ADDR", "FLAGS", "MASK", "TYPE", "ID"); 28350a586ceaSMark Shellenbaum 28360a586ceaSMark Shellenbaum if (!verbose) { 28370a586ceaSMark Shellenbaum mdb_printf("%0?p %-8x %-8x %-8x %-llx\n", addr, 28380a586ceaSMark Shellenbaum ace_flags, access_mask, ace_type, id); 28390a586ceaSMark Shellenbaum return (DCMD_OK); 28400a586ceaSMark Shellenbaum } 28410a586ceaSMark Shellenbaum 28420a586ceaSMark Shellenbaum switch (ace_flags & ACE_TYPE_FLAGS) { 28430a586ceaSMark Shellenbaum case ACE_OWNER: 28440a586ceaSMark Shellenbaum mdb_printf("owner@:"); 28450a586ceaSMark Shellenbaum break; 28460a586ceaSMark Shellenbaum case (ACE_IDENTIFIER_GROUP | ACE_GROUP): 28470a586ceaSMark Shellenbaum mdb_printf("group@:"); 28480a586ceaSMark Shellenbaum break; 28490a586ceaSMark Shellenbaum case ACE_EVERYONE: 28500a586ceaSMark Shellenbaum mdb_printf("everyone@:"); 28510a586ceaSMark Shellenbaum break; 28520a586ceaSMark Shellenbaum case ACE_IDENTIFIER_GROUP: 28530a586ceaSMark Shellenbaum mdb_printf("group:%llx:", (u_longlong_t)id); 28540a586ceaSMark Shellenbaum break; 28550a586ceaSMark Shellenbaum case 0: /* User entry */ 28560a586ceaSMark Shellenbaum mdb_printf("user:%llx:", (u_longlong_t)id); 28570a586ceaSMark Shellenbaum break; 28580a586ceaSMark Shellenbaum } 28590a586ceaSMark Shellenbaum 28600a586ceaSMark Shellenbaum /* print out permission mask */ 28610a586ceaSMark Shellenbaum if (access_mask & ACE_READ_DATA) 28620a586ceaSMark Shellenbaum mdb_printf("r"); 28630a586ceaSMark Shellenbaum else 28640a586ceaSMark Shellenbaum mdb_printf("-"); 28650a586ceaSMark Shellenbaum if (access_mask & ACE_WRITE_DATA) 28660a586ceaSMark Shellenbaum mdb_printf("w"); 28670a586ceaSMark Shellenbaum else 28680a586ceaSMark Shellenbaum mdb_printf("-"); 28690a586ceaSMark Shellenbaum if (access_mask & ACE_EXECUTE) 28700a586ceaSMark Shellenbaum mdb_printf("x"); 28710a586ceaSMark Shellenbaum else 28720a586ceaSMark Shellenbaum mdb_printf("-"); 28730a586ceaSMark Shellenbaum if (access_mask & ACE_APPEND_DATA) 28740a586ceaSMark Shellenbaum mdb_printf("p"); 28750a586ceaSMark Shellenbaum else 28760a586ceaSMark Shellenbaum mdb_printf("-"); 28770a586ceaSMark Shellenbaum if (access_mask & ACE_DELETE) 28780a586ceaSMark Shellenbaum mdb_printf("d"); 28790a586ceaSMark Shellenbaum else 28800a586ceaSMark Shellenbaum mdb_printf("-"); 28810a586ceaSMark Shellenbaum if (access_mask & ACE_DELETE_CHILD) 28820a586ceaSMark Shellenbaum mdb_printf("D"); 28830a586ceaSMark Shellenbaum else 28840a586ceaSMark Shellenbaum mdb_printf("-"); 28850a586ceaSMark Shellenbaum if (access_mask & ACE_READ_ATTRIBUTES) 28860a586ceaSMark Shellenbaum mdb_printf("a"); 28870a586ceaSMark Shellenbaum else 28880a586ceaSMark Shellenbaum mdb_printf("-"); 28890a586ceaSMark Shellenbaum if (access_mask & ACE_WRITE_ATTRIBUTES) 28900a586ceaSMark Shellenbaum mdb_printf("A"); 28910a586ceaSMark Shellenbaum else 28920a586ceaSMark Shellenbaum mdb_printf("-"); 28930a586ceaSMark Shellenbaum if (access_mask & ACE_READ_NAMED_ATTRS) 28940a586ceaSMark Shellenbaum mdb_printf("R"); 28950a586ceaSMark Shellenbaum else 28960a586ceaSMark Shellenbaum mdb_printf("-"); 28970a586ceaSMark Shellenbaum if (access_mask & ACE_WRITE_NAMED_ATTRS) 28980a586ceaSMark Shellenbaum mdb_printf("W"); 28990a586ceaSMark Shellenbaum else 29000a586ceaSMark Shellenbaum mdb_printf("-"); 29010a586ceaSMark Shellenbaum if (access_mask & ACE_READ_ACL) 29020a586ceaSMark Shellenbaum mdb_printf("c"); 29030a586ceaSMark Shellenbaum else 29040a586ceaSMark Shellenbaum mdb_printf("-"); 29050a586ceaSMark Shellenbaum if (access_mask & ACE_WRITE_ACL) 29060a586ceaSMark Shellenbaum mdb_printf("C"); 29070a586ceaSMark Shellenbaum else 29080a586ceaSMark Shellenbaum mdb_printf("-"); 29090a586ceaSMark Shellenbaum if (access_mask & ACE_WRITE_OWNER) 29100a586ceaSMark Shellenbaum mdb_printf("o"); 29110a586ceaSMark Shellenbaum else 29120a586ceaSMark Shellenbaum mdb_printf("-"); 29130a586ceaSMark Shellenbaum if (access_mask & ACE_SYNCHRONIZE) 29140a586ceaSMark Shellenbaum mdb_printf("s"); 29150a586ceaSMark Shellenbaum else 29160a586ceaSMark Shellenbaum mdb_printf("-"); 29170a586ceaSMark Shellenbaum 29180a586ceaSMark Shellenbaum mdb_printf(":"); 29190a586ceaSMark Shellenbaum 29200a586ceaSMark Shellenbaum /* Print out inheritance flags */ 29210a586ceaSMark Shellenbaum if (ace_flags & ACE_FILE_INHERIT_ACE) 29220a586ceaSMark Shellenbaum mdb_printf("f"); 29230a586ceaSMark Shellenbaum else 29240a586ceaSMark Shellenbaum mdb_printf("-"); 29250a586ceaSMark Shellenbaum if (ace_flags & ACE_DIRECTORY_INHERIT_ACE) 29260a586ceaSMark Shellenbaum mdb_printf("d"); 29270a586ceaSMark Shellenbaum else 29280a586ceaSMark Shellenbaum mdb_printf("-"); 29290a586ceaSMark Shellenbaum if (ace_flags & ACE_INHERIT_ONLY_ACE) 29300a586ceaSMark Shellenbaum mdb_printf("i"); 29310a586ceaSMark Shellenbaum else 29320a586ceaSMark Shellenbaum mdb_printf("-"); 29330a586ceaSMark Shellenbaum if (ace_flags & ACE_NO_PROPAGATE_INHERIT_ACE) 29340a586ceaSMark Shellenbaum mdb_printf("n"); 29350a586ceaSMark Shellenbaum else 29360a586ceaSMark Shellenbaum mdb_printf("-"); 29370a586ceaSMark Shellenbaum if (ace_flags & ACE_SUCCESSFUL_ACCESS_ACE_FLAG) 29380a586ceaSMark Shellenbaum mdb_printf("S"); 29390a586ceaSMark Shellenbaum else 29400a586ceaSMark Shellenbaum mdb_printf("-"); 29410a586ceaSMark Shellenbaum if (ace_flags & ACE_FAILED_ACCESS_ACE_FLAG) 29420a586ceaSMark Shellenbaum mdb_printf("F"); 29430a586ceaSMark Shellenbaum else 29440a586ceaSMark Shellenbaum mdb_printf("-"); 29450a586ceaSMark Shellenbaum if (ace_flags & ACE_INHERITED_ACE) 29460a586ceaSMark Shellenbaum mdb_printf("I"); 29470a586ceaSMark Shellenbaum else 29480a586ceaSMark Shellenbaum mdb_printf("-"); 29490a586ceaSMark Shellenbaum 29500a586ceaSMark Shellenbaum switch (ace_type) { 29510a586ceaSMark Shellenbaum case ACE_ACCESS_ALLOWED_ACE_TYPE: 29520a586ceaSMark Shellenbaum mdb_printf(":allow\n"); 29530a586ceaSMark Shellenbaum break; 29540a586ceaSMark Shellenbaum case ACE_ACCESS_DENIED_ACE_TYPE: 29550a586ceaSMark Shellenbaum mdb_printf(":deny\n"); 29560a586ceaSMark Shellenbaum break; 29570a586ceaSMark Shellenbaum case ACE_SYSTEM_AUDIT_ACE_TYPE: 29580a586ceaSMark Shellenbaum mdb_printf(":audit\n"); 29590a586ceaSMark Shellenbaum break; 29600a586ceaSMark Shellenbaum case ACE_SYSTEM_ALARM_ACE_TYPE: 29610a586ceaSMark Shellenbaum mdb_printf(":alarm\n"); 29620a586ceaSMark Shellenbaum break; 29630a586ceaSMark Shellenbaum default: 29640a586ceaSMark Shellenbaum mdb_printf(":?\n"); 29650a586ceaSMark Shellenbaum } 29660a586ceaSMark Shellenbaum return (DCMD_OK); 29670a586ceaSMark Shellenbaum } 29680a586ceaSMark Shellenbaum 29690a586ceaSMark Shellenbaum /* ARGSUSED */ 29700a586ceaSMark Shellenbaum static int 29710a586ceaSMark Shellenbaum zfs_ace_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 29720a586ceaSMark Shellenbaum { 29730a586ceaSMark Shellenbaum zfs_ace_t zace; 29740a586ceaSMark Shellenbaum int verbose = FALSE; 29750a586ceaSMark Shellenbaum uint64_t id; 29760a586ceaSMark Shellenbaum 29770a586ceaSMark Shellenbaum if (!(flags & DCMD_ADDRSPEC)) 29780a586ceaSMark Shellenbaum return (DCMD_USAGE); 29790a586ceaSMark Shellenbaum 29800a586ceaSMark Shellenbaum if (mdb_getopts(argc, argv, 29810a586ceaSMark Shellenbaum 'v', MDB_OPT_SETBITS, TRUE, &verbose, TRUE, NULL) != argc) 29820a586ceaSMark Shellenbaum return (DCMD_USAGE); 29830a586ceaSMark Shellenbaum 29840a586ceaSMark Shellenbaum if (mdb_vread(&zace, sizeof (zfs_ace_t), addr) == -1) { 29850a586ceaSMark Shellenbaum mdb_warn("failed to read zfs_ace_t"); 29860a586ceaSMark Shellenbaum return (DCMD_ERR); 29870a586ceaSMark Shellenbaum } 29880a586ceaSMark Shellenbaum 29890a586ceaSMark Shellenbaum if ((zace.z_hdr.z_flags & ACE_TYPE_FLAGS) == 0 || 29900a586ceaSMark Shellenbaum (zace.z_hdr.z_flags & ACE_TYPE_FLAGS) == ACE_IDENTIFIER_GROUP) 29910a586ceaSMark Shellenbaum id = zace.z_fuid; 29920a586ceaSMark Shellenbaum else 29930a586ceaSMark Shellenbaum id = -1; 29940a586ceaSMark Shellenbaum 29950a586ceaSMark Shellenbaum return (zfs_ace_print_common(addr, flags, id, zace.z_hdr.z_access_mask, 29960a586ceaSMark Shellenbaum zace.z_hdr.z_flags, zace.z_hdr.z_type, verbose)); 29970a586ceaSMark Shellenbaum } 29980a586ceaSMark Shellenbaum 29990a586ceaSMark Shellenbaum /* ARGSUSED */ 30000a586ceaSMark Shellenbaum static int 30010a586ceaSMark Shellenbaum zfs_ace0_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 30020a586ceaSMark Shellenbaum { 30030a586ceaSMark Shellenbaum ace_t ace; 30040a586ceaSMark Shellenbaum uint64_t id; 30050a586ceaSMark Shellenbaum int verbose = FALSE; 30060a586ceaSMark Shellenbaum 30070a586ceaSMark Shellenbaum if (!(flags & DCMD_ADDRSPEC)) 30080a586ceaSMark Shellenbaum return (DCMD_USAGE); 30090a586ceaSMark Shellenbaum 30100a586ceaSMark Shellenbaum if (mdb_getopts(argc, argv, 30110a586ceaSMark Shellenbaum 'v', MDB_OPT_SETBITS, TRUE, &verbose, TRUE, NULL) != argc) 30120a586ceaSMark Shellenbaum return (DCMD_USAGE); 30130a586ceaSMark Shellenbaum 30140a586ceaSMark Shellenbaum if (mdb_vread(&ace, sizeof (ace_t), addr) == -1) { 30150a586ceaSMark Shellenbaum mdb_warn("failed to read ace_t"); 30160a586ceaSMark Shellenbaum return (DCMD_ERR); 30170a586ceaSMark Shellenbaum } 30180a586ceaSMark Shellenbaum 30190a586ceaSMark Shellenbaum if ((ace.a_flags & ACE_TYPE_FLAGS) == 0 || 30200a586ceaSMark Shellenbaum (ace.a_flags & ACE_TYPE_FLAGS) == ACE_IDENTIFIER_GROUP) 30210a586ceaSMark Shellenbaum id = ace.a_who; 30220a586ceaSMark Shellenbaum else 30230a586ceaSMark Shellenbaum id = -1; 30240a586ceaSMark Shellenbaum 30250a586ceaSMark Shellenbaum return (zfs_ace_print_common(addr, flags, id, ace.a_access_mask, 30260a586ceaSMark Shellenbaum ace.a_flags, ace.a_type, verbose)); 30270a586ceaSMark Shellenbaum } 30280a586ceaSMark Shellenbaum 30290a586ceaSMark Shellenbaum typedef struct acl_dump_args { 30300a586ceaSMark Shellenbaum int a_argc; 30310a586ceaSMark Shellenbaum const mdb_arg_t *a_argv; 30320a586ceaSMark Shellenbaum uint16_t a_version; 30330a586ceaSMark Shellenbaum int a_flags; 30340a586ceaSMark Shellenbaum } acl_dump_args_t; 30350a586ceaSMark Shellenbaum 30360a586ceaSMark Shellenbaum /* ARGSUSED */ 30370a586ceaSMark Shellenbaum static int 30380a586ceaSMark Shellenbaum acl_aces_cb(uintptr_t addr, const void *unknown, void *arg) 30390a586ceaSMark Shellenbaum { 30400a586ceaSMark Shellenbaum acl_dump_args_t *acl_args = (acl_dump_args_t *)arg; 30410a586ceaSMark Shellenbaum 30420a586ceaSMark Shellenbaum if (acl_args->a_version == 1) { 30430a586ceaSMark Shellenbaum if (mdb_call_dcmd("zfs_ace", addr, 30440a586ceaSMark Shellenbaum DCMD_ADDRSPEC|acl_args->a_flags, acl_args->a_argc, 30450a586ceaSMark Shellenbaum acl_args->a_argv) != DCMD_OK) { 30460a586ceaSMark Shellenbaum return (WALK_ERR); 30470a586ceaSMark Shellenbaum } 30480a586ceaSMark Shellenbaum } else { 30490a586ceaSMark Shellenbaum if (mdb_call_dcmd("zfs_ace0", addr, 30500a586ceaSMark Shellenbaum DCMD_ADDRSPEC|acl_args->a_flags, acl_args->a_argc, 30510a586ceaSMark Shellenbaum acl_args->a_argv) != DCMD_OK) { 30520a586ceaSMark Shellenbaum return (WALK_ERR); 30530a586ceaSMark Shellenbaum } 30540a586ceaSMark Shellenbaum } 30550a586ceaSMark Shellenbaum acl_args->a_flags = DCMD_LOOP; 30560a586ceaSMark Shellenbaum return (WALK_NEXT); 30570a586ceaSMark Shellenbaum } 30580a586ceaSMark Shellenbaum 30590a586ceaSMark Shellenbaum /* ARGSUSED */ 30600a586ceaSMark Shellenbaum static int 30610a586ceaSMark Shellenbaum acl_cb(uintptr_t addr, const void *unknown, void *arg) 30620a586ceaSMark Shellenbaum { 30630a586ceaSMark Shellenbaum acl_dump_args_t *acl_args = (acl_dump_args_t *)arg; 30640a586ceaSMark Shellenbaum 30650a586ceaSMark Shellenbaum if (acl_args->a_version == 1) { 30660a586ceaSMark Shellenbaum if (mdb_pwalk("zfs_acl_node_aces", acl_aces_cb, 30670a586ceaSMark Shellenbaum arg, addr) != 0) { 30680a586ceaSMark Shellenbaum mdb_warn("can't walk ACEs"); 30690a586ceaSMark Shellenbaum return (DCMD_ERR); 30700a586ceaSMark Shellenbaum } 30710a586ceaSMark Shellenbaum } else { 30720a586ceaSMark Shellenbaum if (mdb_pwalk("zfs_acl_node_aces0", acl_aces_cb, 30730a586ceaSMark Shellenbaum arg, addr) != 0) { 30740a586ceaSMark Shellenbaum mdb_warn("can't walk ACEs"); 30750a586ceaSMark Shellenbaum return (DCMD_ERR); 30760a586ceaSMark Shellenbaum } 30770a586ceaSMark Shellenbaum } 30780a586ceaSMark Shellenbaum return (WALK_NEXT); 30790a586ceaSMark Shellenbaum } 30800a586ceaSMark Shellenbaum 30810a586ceaSMark Shellenbaum /* ARGSUSED */ 30820a586ceaSMark Shellenbaum static int 30830a586ceaSMark Shellenbaum zfs_acl_dump(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 30840a586ceaSMark Shellenbaum { 30850a586ceaSMark Shellenbaum zfs_acl_t zacl; 30860a586ceaSMark Shellenbaum int verbose = FALSE; 30870a586ceaSMark Shellenbaum acl_dump_args_t acl_args; 30880a586ceaSMark Shellenbaum 30890a586ceaSMark Shellenbaum if (!(flags & DCMD_ADDRSPEC)) 30900a586ceaSMark Shellenbaum return (DCMD_USAGE); 30910a586ceaSMark Shellenbaum 30920a586ceaSMark Shellenbaum if (mdb_getopts(argc, argv, 30930a586ceaSMark Shellenbaum 'v', MDB_OPT_SETBITS, TRUE, &verbose, TRUE, NULL) != argc) 30940a586ceaSMark Shellenbaum return (DCMD_USAGE); 30950a586ceaSMark Shellenbaum 30960a586ceaSMark Shellenbaum if (mdb_vread(&zacl, sizeof (zfs_acl_t), addr) == -1) { 30970a586ceaSMark Shellenbaum mdb_warn("failed to read zfs_acl_t"); 30980a586ceaSMark Shellenbaum return (DCMD_ERR); 30990a586ceaSMark Shellenbaum } 31000a586ceaSMark Shellenbaum 31010a586ceaSMark Shellenbaum acl_args.a_argc = argc; 31020a586ceaSMark Shellenbaum acl_args.a_argv = argv; 31030a586ceaSMark Shellenbaum acl_args.a_version = zacl.z_version; 31040a586ceaSMark Shellenbaum acl_args.a_flags = DCMD_LOOPFIRST; 31050a586ceaSMark Shellenbaum 31060a586ceaSMark Shellenbaum if (mdb_pwalk("zfs_acl_node", acl_cb, &acl_args, addr) != 0) { 31070a586ceaSMark Shellenbaum mdb_warn("can't walk ACL"); 31080a586ceaSMark Shellenbaum return (DCMD_ERR); 31090a586ceaSMark Shellenbaum } 31100a586ceaSMark Shellenbaum 31110a586ceaSMark Shellenbaum return (DCMD_OK); 31120a586ceaSMark Shellenbaum } 31130a586ceaSMark Shellenbaum 31140a586ceaSMark Shellenbaum /* ARGSUSED */ 31150a586ceaSMark Shellenbaum static int 31160a586ceaSMark Shellenbaum zfs_acl_node_walk_init(mdb_walk_state_t *wsp) 31170a586ceaSMark Shellenbaum { 31180a586ceaSMark Shellenbaum if (wsp->walk_addr == NULL) { 31190a586ceaSMark Shellenbaum mdb_warn("must supply address of zfs_acl_node_t\n"); 31200a586ceaSMark Shellenbaum return (WALK_ERR); 31210a586ceaSMark Shellenbaum } 31220a586ceaSMark Shellenbaum 312328e4da25SMatthew Ahrens wsp->walk_addr += 312428e4da25SMatthew Ahrens mdb_ctf_offsetof_by_name(ZFS_STRUCT "zfs_acl", "z_acl"); 31250a586ceaSMark Shellenbaum 31260a586ceaSMark Shellenbaum if (mdb_layered_walk("list", wsp) == -1) { 31270a586ceaSMark Shellenbaum mdb_warn("failed to walk 'list'\n"); 31280a586ceaSMark Shellenbaum return (WALK_ERR); 31290a586ceaSMark Shellenbaum } 31300a586ceaSMark Shellenbaum 31310a586ceaSMark Shellenbaum return (WALK_NEXT); 31320a586ceaSMark Shellenbaum } 31330a586ceaSMark Shellenbaum 31340a586ceaSMark Shellenbaum static int 31350a586ceaSMark Shellenbaum zfs_acl_node_walk_step(mdb_walk_state_t *wsp) 31360a586ceaSMark Shellenbaum { 31370a586ceaSMark Shellenbaum zfs_acl_node_t aclnode; 31380a586ceaSMark Shellenbaum 31390a586ceaSMark Shellenbaum if (mdb_vread(&aclnode, sizeof (zfs_acl_node_t), 31400a586ceaSMark Shellenbaum wsp->walk_addr) == -1) { 31410a586ceaSMark Shellenbaum mdb_warn("failed to read zfs_acl_node at %p", wsp->walk_addr); 31420a586ceaSMark Shellenbaum return (WALK_ERR); 31430a586ceaSMark Shellenbaum } 31440a586ceaSMark Shellenbaum 31450a586ceaSMark Shellenbaum return (wsp->walk_callback(wsp->walk_addr, &aclnode, wsp->walk_cbdata)); 31460a586ceaSMark Shellenbaum } 31470a586ceaSMark Shellenbaum 31480a586ceaSMark Shellenbaum typedef struct ace_walk_data { 31490a586ceaSMark Shellenbaum int ace_count; 31500a586ceaSMark Shellenbaum int ace_version; 31510a586ceaSMark Shellenbaum } ace_walk_data_t; 31520a586ceaSMark Shellenbaum 31530a586ceaSMark Shellenbaum static int 31540a586ceaSMark Shellenbaum zfs_aces_walk_init_common(mdb_walk_state_t *wsp, int version, 31550a586ceaSMark Shellenbaum int ace_count, uintptr_t ace_data) 31560a586ceaSMark Shellenbaum { 31570a586ceaSMark Shellenbaum ace_walk_data_t *ace_walk_data; 31580a586ceaSMark Shellenbaum 31590a586ceaSMark Shellenbaum if (wsp->walk_addr == NULL) { 31600a586ceaSMark Shellenbaum mdb_warn("must supply address of zfs_acl_node_t\n"); 31610a586ceaSMark Shellenbaum return (WALK_ERR); 31620a586ceaSMark Shellenbaum } 31630a586ceaSMark Shellenbaum 31640a586ceaSMark Shellenbaum ace_walk_data = mdb_alloc(sizeof (ace_walk_data_t), UM_SLEEP | UM_GC); 31650a586ceaSMark Shellenbaum 31660a586ceaSMark Shellenbaum ace_walk_data->ace_count = ace_count; 31670a586ceaSMark Shellenbaum ace_walk_data->ace_version = version; 31680a586ceaSMark Shellenbaum 31690a586ceaSMark Shellenbaum wsp->walk_addr = ace_data; 31700a586ceaSMark Shellenbaum wsp->walk_data = ace_walk_data; 31710a586ceaSMark Shellenbaum 31720a586ceaSMark Shellenbaum return (WALK_NEXT); 31730a586ceaSMark Shellenbaum } 31740a586ceaSMark Shellenbaum 31750a586ceaSMark Shellenbaum static int 31760a586ceaSMark Shellenbaum zfs_acl_node_aces_walk_init_common(mdb_walk_state_t *wsp, int version) 31770a586ceaSMark Shellenbaum { 31780a586ceaSMark Shellenbaum static int gotid; 31790a586ceaSMark Shellenbaum static mdb_ctf_id_t acl_id; 31800a586ceaSMark Shellenbaum int z_ace_count; 31810a586ceaSMark Shellenbaum uintptr_t z_acldata; 31820a586ceaSMark Shellenbaum 31830a586ceaSMark Shellenbaum if (!gotid) { 31840a586ceaSMark Shellenbaum if (mdb_ctf_lookup_by_name("struct zfs_acl_node", 31850a586ceaSMark Shellenbaum &acl_id) == -1) { 31860a586ceaSMark Shellenbaum mdb_warn("couldn't find struct zfs_acl_node"); 31870a586ceaSMark Shellenbaum return (DCMD_ERR); 31880a586ceaSMark Shellenbaum } 31890a586ceaSMark Shellenbaum gotid = TRUE; 31900a586ceaSMark Shellenbaum } 31910a586ceaSMark Shellenbaum 31920a586ceaSMark Shellenbaum if (GETMEMBID(wsp->walk_addr, &acl_id, z_ace_count, z_ace_count)) { 31930a586ceaSMark Shellenbaum return (DCMD_ERR); 31940a586ceaSMark Shellenbaum } 31950a586ceaSMark Shellenbaum if (GETMEMBID(wsp->walk_addr, &acl_id, z_acldata, z_acldata)) { 31960a586ceaSMark Shellenbaum return (DCMD_ERR); 31970a586ceaSMark Shellenbaum } 31980a586ceaSMark Shellenbaum 31990a586ceaSMark Shellenbaum return (zfs_aces_walk_init_common(wsp, version, 32000a586ceaSMark Shellenbaum z_ace_count, z_acldata)); 32010a586ceaSMark Shellenbaum } 32020a586ceaSMark Shellenbaum 32030a586ceaSMark Shellenbaum /* ARGSUSED */ 32040a586ceaSMark Shellenbaum static int 32050a586ceaSMark Shellenbaum zfs_acl_node_aces_walk_init(mdb_walk_state_t *wsp) 32060a586ceaSMark Shellenbaum { 32070a586ceaSMark Shellenbaum return (zfs_acl_node_aces_walk_init_common(wsp, 1)); 32080a586ceaSMark Shellenbaum } 32090a586ceaSMark Shellenbaum 32100a586ceaSMark Shellenbaum /* ARGSUSED */ 32110a586ceaSMark Shellenbaum static int 32120a586ceaSMark Shellenbaum zfs_acl_node_aces0_walk_init(mdb_walk_state_t *wsp) 32130a586ceaSMark Shellenbaum { 32140a586ceaSMark Shellenbaum return (zfs_acl_node_aces_walk_init_common(wsp, 0)); 32150a586ceaSMark Shellenbaum } 32160a586ceaSMark Shellenbaum 32170a586ceaSMark Shellenbaum static int 32180a586ceaSMark Shellenbaum zfs_aces_walk_step(mdb_walk_state_t *wsp) 32190a586ceaSMark Shellenbaum { 32200a586ceaSMark Shellenbaum ace_walk_data_t *ace_data = wsp->walk_data; 32210a586ceaSMark Shellenbaum zfs_ace_t zace; 32220a586ceaSMark Shellenbaum ace_t *acep; 32230a586ceaSMark Shellenbaum int status; 32240a586ceaSMark Shellenbaum int entry_type; 32250a586ceaSMark Shellenbaum int allow_type; 32260a586ceaSMark Shellenbaum uintptr_t ptr; 32270a586ceaSMark Shellenbaum 32280a586ceaSMark Shellenbaum if (ace_data->ace_count == 0) 32290a586ceaSMark Shellenbaum return (WALK_DONE); 32300a586ceaSMark Shellenbaum 32310a586ceaSMark Shellenbaum if (mdb_vread(&zace, sizeof (zfs_ace_t), wsp->walk_addr) == -1) { 32320a586ceaSMark Shellenbaum mdb_warn("failed to read zfs_ace_t at %#lx", 32330a586ceaSMark Shellenbaum wsp->walk_addr); 32340a586ceaSMark Shellenbaum return (WALK_ERR); 32350a586ceaSMark Shellenbaum } 32360a586ceaSMark Shellenbaum 32370a586ceaSMark Shellenbaum switch (ace_data->ace_version) { 32380a586ceaSMark Shellenbaum case 0: 32390a586ceaSMark Shellenbaum acep = (ace_t *)&zace; 32400a586ceaSMark Shellenbaum entry_type = acep->a_flags & ACE_TYPE_FLAGS; 32410a586ceaSMark Shellenbaum allow_type = acep->a_type; 32420a586ceaSMark Shellenbaum break; 32430a586ceaSMark Shellenbaum case 1: 32440a586ceaSMark Shellenbaum entry_type = zace.z_hdr.z_flags & ACE_TYPE_FLAGS; 32450a586ceaSMark Shellenbaum allow_type = zace.z_hdr.z_type; 32460a586ceaSMark Shellenbaum break; 32470a586ceaSMark Shellenbaum default: 32480a586ceaSMark Shellenbaum return (WALK_ERR); 32490a586ceaSMark Shellenbaum } 32500a586ceaSMark Shellenbaum 32510a586ceaSMark Shellenbaum ptr = (uintptr_t)wsp->walk_addr; 32520a586ceaSMark Shellenbaum switch (entry_type) { 32530a586ceaSMark Shellenbaum case ACE_OWNER: 32540a586ceaSMark Shellenbaum case ACE_EVERYONE: 32550a586ceaSMark Shellenbaum case (ACE_IDENTIFIER_GROUP | ACE_GROUP): 32560a586ceaSMark Shellenbaum ptr += ace_data->ace_version == 0 ? 32570a586ceaSMark Shellenbaum sizeof (ace_t) : sizeof (zfs_ace_hdr_t); 32580a586ceaSMark Shellenbaum break; 32590a586ceaSMark Shellenbaum case ACE_IDENTIFIER_GROUP: 32600a586ceaSMark Shellenbaum default: 32610a586ceaSMark Shellenbaum switch (allow_type) { 32620a586ceaSMark Shellenbaum case ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE: 32630a586ceaSMark Shellenbaum case ACE_ACCESS_DENIED_OBJECT_ACE_TYPE: 32640a586ceaSMark Shellenbaum case ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE: 32650a586ceaSMark Shellenbaum case ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE: 32660a586ceaSMark Shellenbaum ptr += ace_data->ace_version == 0 ? 32670a586ceaSMark Shellenbaum sizeof (ace_t) : sizeof (zfs_object_ace_t); 32680a586ceaSMark Shellenbaum break; 32690a586ceaSMark Shellenbaum default: 32700a586ceaSMark Shellenbaum ptr += ace_data->ace_version == 0 ? 32710a586ceaSMark Shellenbaum sizeof (ace_t) : sizeof (zfs_ace_t); 32720a586ceaSMark Shellenbaum break; 32730a586ceaSMark Shellenbaum } 32740a586ceaSMark Shellenbaum } 32750a586ceaSMark Shellenbaum 32760a586ceaSMark Shellenbaum ace_data->ace_count--; 32770a586ceaSMark Shellenbaum status = wsp->walk_callback(wsp->walk_addr, 32780a586ceaSMark Shellenbaum (void *)(uintptr_t)&zace, wsp->walk_cbdata); 32790a586ceaSMark Shellenbaum 32800a586ceaSMark Shellenbaum wsp->walk_addr = ptr; 32810a586ceaSMark Shellenbaum return (status); 32820a586ceaSMark Shellenbaum } 32830a586ceaSMark Shellenbaum 328428e4da25SMatthew Ahrens typedef struct mdb_zfs_rrwlock { 3285d5ee8a13SMatthew Ahrens uintptr_t rr_writer; 328628e4da25SMatthew Ahrens boolean_t rr_writer_wanted; 328728e4da25SMatthew Ahrens } mdb_zfs_rrwlock_t; 328828e4da25SMatthew Ahrens 328928e4da25SMatthew Ahrens static uint_t rrw_key; 329028e4da25SMatthew Ahrens 329128e4da25SMatthew Ahrens /* ARGSUSED */ 329228e4da25SMatthew Ahrens static int 329328e4da25SMatthew Ahrens rrwlock(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 329428e4da25SMatthew Ahrens { 329528e4da25SMatthew Ahrens mdb_zfs_rrwlock_t rrw; 329628e4da25SMatthew Ahrens 329728e4da25SMatthew Ahrens if (rrw_key == 0) { 329828e4da25SMatthew Ahrens if (mdb_ctf_readsym(&rrw_key, "uint_t", "rrw_tsd_key", 0) == -1) 329928e4da25SMatthew Ahrens return (DCMD_ERR); 330028e4da25SMatthew Ahrens } 330128e4da25SMatthew Ahrens 330228e4da25SMatthew Ahrens if (mdb_ctf_vread(&rrw, "rrwlock_t", "mdb_zfs_rrwlock_t", addr, 330328e4da25SMatthew Ahrens 0) == -1) 330428e4da25SMatthew Ahrens return (DCMD_ERR); 330528e4da25SMatthew Ahrens 3306d5ee8a13SMatthew Ahrens if (rrw.rr_writer != 0) { 3307d5ee8a13SMatthew Ahrens mdb_printf("write lock held by thread %lx\n", rrw.rr_writer); 330828e4da25SMatthew Ahrens return (DCMD_OK); 330928e4da25SMatthew Ahrens } 331028e4da25SMatthew Ahrens 331128e4da25SMatthew Ahrens if (rrw.rr_writer_wanted) { 331228e4da25SMatthew Ahrens mdb_printf("writer wanted\n"); 331328e4da25SMatthew Ahrens } 331428e4da25SMatthew Ahrens 331528e4da25SMatthew Ahrens mdb_printf("anonymous references:\n"); 331628e4da25SMatthew Ahrens (void) mdb_call_dcmd("refcount", addr + 331728e4da25SMatthew Ahrens mdb_ctf_offsetof_by_name(ZFS_STRUCT "rrwlock", "rr_anon_rcount"), 331828e4da25SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 331928e4da25SMatthew Ahrens 332028e4da25SMatthew Ahrens mdb_printf("linked references:\n"); 332128e4da25SMatthew Ahrens (void) mdb_call_dcmd("refcount", addr + 332228e4da25SMatthew Ahrens mdb_ctf_offsetof_by_name(ZFS_STRUCT "rrwlock", "rr_linked_rcount"), 332328e4da25SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 332428e4da25SMatthew Ahrens 332528e4da25SMatthew Ahrens /* 332628e4da25SMatthew Ahrens * XXX This should find references from 332728e4da25SMatthew Ahrens * "::walk thread | ::tsd -v <rrw_key>", but there is no support 332828e4da25SMatthew Ahrens * for programmatic consumption of dcmds, so this would be 332928e4da25SMatthew Ahrens * difficult, potentially requiring reimplementing ::tsd (both 333028e4da25SMatthew Ahrens * user and kernel versions) in this MDB module. 333128e4da25SMatthew Ahrens */ 333228e4da25SMatthew Ahrens 333328e4da25SMatthew Ahrens return (DCMD_OK); 333428e4da25SMatthew Ahrens } 333528e4da25SMatthew Ahrens 3336*dcbf3bd6SGeorge Wilson typedef struct mdb_arc_buf_hdr_t { 3337*dcbf3bd6SGeorge Wilson uint16_t b_psize; 3338*dcbf3bd6SGeorge Wilson uint16_t b_lsize; 3339*dcbf3bd6SGeorge Wilson struct { 3340*dcbf3bd6SGeorge Wilson uint32_t b_bufcnt; 3341*dcbf3bd6SGeorge Wilson uintptr_t b_state; 3342*dcbf3bd6SGeorge Wilson uintptr_t b_pdata; 3343*dcbf3bd6SGeorge Wilson } b_l1hdr; 3344*dcbf3bd6SGeorge Wilson } mdb_arc_buf_hdr_t; 3345*dcbf3bd6SGeorge Wilson 3346*dcbf3bd6SGeorge Wilson enum arc_cflags { 3347*dcbf3bd6SGeorge Wilson ARC_CFLAG_VERBOSE = 1 << 0, 3348*dcbf3bd6SGeorge Wilson ARC_CFLAG_ANON = 1 << 1, 3349*dcbf3bd6SGeorge Wilson ARC_CFLAG_MRU = 1 << 2, 3350*dcbf3bd6SGeorge Wilson ARC_CFLAG_MFU = 1 << 3, 3351*dcbf3bd6SGeorge Wilson ARC_CFLAG_BUFS = 1 << 4, 3352*dcbf3bd6SGeorge Wilson }; 3353*dcbf3bd6SGeorge Wilson 3354*dcbf3bd6SGeorge Wilson typedef struct arc_compression_stats_data { 3355*dcbf3bd6SGeorge Wilson GElf_Sym anon_sym; /* ARC_anon symbol */ 3356*dcbf3bd6SGeorge Wilson GElf_Sym mru_sym; /* ARC_mru symbol */ 3357*dcbf3bd6SGeorge Wilson GElf_Sym mrug_sym; /* ARC_mru_ghost symbol */ 3358*dcbf3bd6SGeorge Wilson GElf_Sym mfu_sym; /* ARC_mfu symbol */ 3359*dcbf3bd6SGeorge Wilson GElf_Sym mfug_sym; /* ARC_mfu_ghost symbol */ 3360*dcbf3bd6SGeorge Wilson GElf_Sym l2c_sym; /* ARC_l2c_only symbol */ 3361*dcbf3bd6SGeorge Wilson uint64_t *anon_c_hist; /* histogram of compressed sizes in anon */ 3362*dcbf3bd6SGeorge Wilson uint64_t *anon_u_hist; /* histogram of uncompressed sizes in anon */ 3363*dcbf3bd6SGeorge Wilson uint64_t *anon_bufs; /* histogram of buffer counts in anon state */ 3364*dcbf3bd6SGeorge Wilson uint64_t *mru_c_hist; /* histogram of compressed sizes in mru */ 3365*dcbf3bd6SGeorge Wilson uint64_t *mru_u_hist; /* histogram of uncompressed sizes in mru */ 3366*dcbf3bd6SGeorge Wilson uint64_t *mru_bufs; /* histogram of buffer counts in mru */ 3367*dcbf3bd6SGeorge Wilson uint64_t *mfu_c_hist; /* histogram of compressed sizes in mfu */ 3368*dcbf3bd6SGeorge Wilson uint64_t *mfu_u_hist; /* histogram of uncompressed sizes in mfu */ 3369*dcbf3bd6SGeorge Wilson uint64_t *mfu_bufs; /* histogram of buffer counts in mfu */ 3370*dcbf3bd6SGeorge Wilson uint64_t *all_c_hist; /* histogram of compressed anon + mru + mfu */ 3371*dcbf3bd6SGeorge Wilson uint64_t *all_u_hist; /* histogram of uncompressed anon + mru + mfu */ 3372*dcbf3bd6SGeorge Wilson uint64_t *all_bufs; /* histogram of buffer counts in all states */ 3373*dcbf3bd6SGeorge Wilson int arc_cflags; /* arc compression flags, specified by user */ 3374*dcbf3bd6SGeorge Wilson int hist_nbuckets; /* number of buckets in each histogram */ 3375*dcbf3bd6SGeorge Wilson } arc_compression_stats_data_t; 3376*dcbf3bd6SGeorge Wilson 3377*dcbf3bd6SGeorge Wilson int 3378*dcbf3bd6SGeorge Wilson highbit64(uint64_t i) 3379*dcbf3bd6SGeorge Wilson { 3380*dcbf3bd6SGeorge Wilson int h = 1; 3381*dcbf3bd6SGeorge Wilson 3382*dcbf3bd6SGeorge Wilson if (i == 0) 3383*dcbf3bd6SGeorge Wilson return (0); 3384*dcbf3bd6SGeorge Wilson if (i & 0xffffffff00000000ULL) { 3385*dcbf3bd6SGeorge Wilson h += 32; i >>= 32; 3386*dcbf3bd6SGeorge Wilson } 3387*dcbf3bd6SGeorge Wilson if (i & 0xffff0000) { 3388*dcbf3bd6SGeorge Wilson h += 16; i >>= 16; 3389*dcbf3bd6SGeorge Wilson } 3390*dcbf3bd6SGeorge Wilson if (i & 0xff00) { 3391*dcbf3bd6SGeorge Wilson h += 8; i >>= 8; 3392*dcbf3bd6SGeorge Wilson } 3393*dcbf3bd6SGeorge Wilson if (i & 0xf0) { 3394*dcbf3bd6SGeorge Wilson h += 4; i >>= 4; 3395*dcbf3bd6SGeorge Wilson } 3396*dcbf3bd6SGeorge Wilson if (i & 0xc) { 3397*dcbf3bd6SGeorge Wilson h += 2; i >>= 2; 3398*dcbf3bd6SGeorge Wilson } 3399*dcbf3bd6SGeorge Wilson if (i & 0x2) { 3400*dcbf3bd6SGeorge Wilson h += 1; 3401*dcbf3bd6SGeorge Wilson } 3402*dcbf3bd6SGeorge Wilson return (h); 3403*dcbf3bd6SGeorge Wilson } 3404*dcbf3bd6SGeorge Wilson 3405*dcbf3bd6SGeorge Wilson /* ARGSUSED */ 3406*dcbf3bd6SGeorge Wilson static int 3407*dcbf3bd6SGeorge Wilson arc_compression_stats_cb(uintptr_t addr, const void *unknown, void *arg) 3408*dcbf3bd6SGeorge Wilson { 3409*dcbf3bd6SGeorge Wilson arc_compression_stats_data_t *data = arg; 3410*dcbf3bd6SGeorge Wilson mdb_arc_buf_hdr_t hdr; 3411*dcbf3bd6SGeorge Wilson int cbucket, ubucket, bufcnt; 3412*dcbf3bd6SGeorge Wilson 3413*dcbf3bd6SGeorge Wilson if (mdb_ctf_vread(&hdr, "arc_buf_hdr_t", "mdb_arc_buf_hdr_t", 3414*dcbf3bd6SGeorge Wilson addr, 0) == -1) { 3415*dcbf3bd6SGeorge Wilson return (WALK_ERR); 3416*dcbf3bd6SGeorge Wilson } 3417*dcbf3bd6SGeorge Wilson 3418*dcbf3bd6SGeorge Wilson /* 3419*dcbf3bd6SGeorge Wilson * Headers in the ghost states, or the l2c_only state don't have 3420*dcbf3bd6SGeorge Wilson * arc buffers linked off of them. Thus, their compressed size 3421*dcbf3bd6SGeorge Wilson * is meaningless, so we skip these from the stats. 3422*dcbf3bd6SGeorge Wilson */ 3423*dcbf3bd6SGeorge Wilson if (hdr.b_l1hdr.b_state == data->mrug_sym.st_value || 3424*dcbf3bd6SGeorge Wilson hdr.b_l1hdr.b_state == data->mfug_sym.st_value || 3425*dcbf3bd6SGeorge Wilson hdr.b_l1hdr.b_state == data->l2c_sym.st_value) { 3426*dcbf3bd6SGeorge Wilson return (WALK_NEXT); 3427*dcbf3bd6SGeorge Wilson } 3428*dcbf3bd6SGeorge Wilson 3429*dcbf3bd6SGeorge Wilson /* 3430*dcbf3bd6SGeorge Wilson * The physical size (compressed) and logical size 3431*dcbf3bd6SGeorge Wilson * (uncompressed) are in units of SPA_MINBLOCKSIZE. By default, 3432*dcbf3bd6SGeorge Wilson * we use the log2 of this value (rounded down to the nearest 3433*dcbf3bd6SGeorge Wilson * integer) to determine the bucket to assign this header to. 3434*dcbf3bd6SGeorge Wilson * Thus, the histogram is logarithmic with respect to the size 3435*dcbf3bd6SGeorge Wilson * of the header. For example, the following is a mapping of the 3436*dcbf3bd6SGeorge Wilson * bucket numbers and the range of header sizes they correspond to: 3437*dcbf3bd6SGeorge Wilson * 3438*dcbf3bd6SGeorge Wilson * 0: 0 byte headers 3439*dcbf3bd6SGeorge Wilson * 1: 512 byte headers 3440*dcbf3bd6SGeorge Wilson * 2: [1024 - 2048) byte headers 3441*dcbf3bd6SGeorge Wilson * 3: [2048 - 4096) byte headers 3442*dcbf3bd6SGeorge Wilson * 4: [4096 - 8192) byte headers 3443*dcbf3bd6SGeorge Wilson * 5: [8192 - 16394) byte headers 3444*dcbf3bd6SGeorge Wilson * 6: [16384 - 32768) byte headers 3445*dcbf3bd6SGeorge Wilson * 7: [32768 - 65536) byte headers 3446*dcbf3bd6SGeorge Wilson * 8: [65536 - 131072) byte headers 3447*dcbf3bd6SGeorge Wilson * 9: 131072 byte headers 3448*dcbf3bd6SGeorge Wilson * 3449*dcbf3bd6SGeorge Wilson * If the ARC_CFLAG_VERBOSE flag was specified, we use the 3450*dcbf3bd6SGeorge Wilson * physical and logical sizes directly. Thus, the histogram will 3451*dcbf3bd6SGeorge Wilson * no longer be logarithmic; instead it will be linear with 3452*dcbf3bd6SGeorge Wilson * respect to the size of the header. The following is a mapping 3453*dcbf3bd6SGeorge Wilson * of the first many bucket numbers and the header size they 3454*dcbf3bd6SGeorge Wilson * correspond to: 3455*dcbf3bd6SGeorge Wilson * 3456*dcbf3bd6SGeorge Wilson * 0: 0 byte headers 3457*dcbf3bd6SGeorge Wilson * 1: 512 byte headers 3458*dcbf3bd6SGeorge Wilson * 2: 1024 byte headers 3459*dcbf3bd6SGeorge Wilson * 3: 1536 byte headers 3460*dcbf3bd6SGeorge Wilson * 4: 2048 byte headers 3461*dcbf3bd6SGeorge Wilson * 5: 2560 byte headers 3462*dcbf3bd6SGeorge Wilson * 6: 3072 byte headers 3463*dcbf3bd6SGeorge Wilson * 3464*dcbf3bd6SGeorge Wilson * And so on. Keep in mind that a range of sizes isn't used in 3465*dcbf3bd6SGeorge Wilson * the case of linear scale because the headers can only 3466*dcbf3bd6SGeorge Wilson * increment or decrement in sizes of 512 bytes. So, it's not 3467*dcbf3bd6SGeorge Wilson * possible for a header to be sized in between whats listed 3468*dcbf3bd6SGeorge Wilson * above. 3469*dcbf3bd6SGeorge Wilson * 3470*dcbf3bd6SGeorge Wilson * Also, the above mapping values were calculated assuming a 3471*dcbf3bd6SGeorge Wilson * SPA_MINBLOCKSHIFT of 512 bytes and a SPA_MAXBLOCKSIZE of 128K. 3472*dcbf3bd6SGeorge Wilson */ 3473*dcbf3bd6SGeorge Wilson 3474*dcbf3bd6SGeorge Wilson if (data->arc_cflags & ARC_CFLAG_VERBOSE) { 3475*dcbf3bd6SGeorge Wilson cbucket = hdr.b_psize; 3476*dcbf3bd6SGeorge Wilson ubucket = hdr.b_lsize; 3477*dcbf3bd6SGeorge Wilson } else { 3478*dcbf3bd6SGeorge Wilson cbucket = highbit64(hdr.b_psize); 3479*dcbf3bd6SGeorge Wilson ubucket = highbit64(hdr.b_lsize); 3480*dcbf3bd6SGeorge Wilson } 3481*dcbf3bd6SGeorge Wilson 3482*dcbf3bd6SGeorge Wilson bufcnt = hdr.b_l1hdr.b_bufcnt; 3483*dcbf3bd6SGeorge Wilson if (bufcnt >= data->hist_nbuckets) 3484*dcbf3bd6SGeorge Wilson bufcnt = data->hist_nbuckets - 1; 3485*dcbf3bd6SGeorge Wilson 3486*dcbf3bd6SGeorge Wilson /* Ensure we stay within the bounds of the histogram array */ 3487*dcbf3bd6SGeorge Wilson ASSERT3U(cbucket, <, data->hist_nbuckets); 3488*dcbf3bd6SGeorge Wilson ASSERT3U(ubucket, <, data->hist_nbuckets); 3489*dcbf3bd6SGeorge Wilson 3490*dcbf3bd6SGeorge Wilson if (hdr.b_l1hdr.b_state == data->anon_sym.st_value) { 3491*dcbf3bd6SGeorge Wilson data->anon_c_hist[cbucket]++; 3492*dcbf3bd6SGeorge Wilson data->anon_u_hist[ubucket]++; 3493*dcbf3bd6SGeorge Wilson data->anon_bufs[bufcnt]++; 3494*dcbf3bd6SGeorge Wilson } else if (hdr.b_l1hdr.b_state == data->mru_sym.st_value) { 3495*dcbf3bd6SGeorge Wilson data->mru_c_hist[cbucket]++; 3496*dcbf3bd6SGeorge Wilson data->mru_u_hist[ubucket]++; 3497*dcbf3bd6SGeorge Wilson data->mru_bufs[bufcnt]++; 3498*dcbf3bd6SGeorge Wilson } else if (hdr.b_l1hdr.b_state == data->mfu_sym.st_value) { 3499*dcbf3bd6SGeorge Wilson data->mfu_c_hist[cbucket]++; 3500*dcbf3bd6SGeorge Wilson data->mfu_u_hist[ubucket]++; 3501*dcbf3bd6SGeorge Wilson data->mfu_bufs[bufcnt]++; 3502*dcbf3bd6SGeorge Wilson } 3503*dcbf3bd6SGeorge Wilson 3504*dcbf3bd6SGeorge Wilson data->all_c_hist[cbucket]++; 3505*dcbf3bd6SGeorge Wilson data->all_u_hist[ubucket]++; 3506*dcbf3bd6SGeorge Wilson data->all_bufs[bufcnt]++; 3507*dcbf3bd6SGeorge Wilson 3508*dcbf3bd6SGeorge Wilson return (WALK_NEXT); 3509*dcbf3bd6SGeorge Wilson } 3510*dcbf3bd6SGeorge Wilson 3511*dcbf3bd6SGeorge Wilson /* ARGSUSED */ 3512*dcbf3bd6SGeorge Wilson static int 3513*dcbf3bd6SGeorge Wilson arc_compression_stats(uintptr_t addr, uint_t flags, int argc, 3514*dcbf3bd6SGeorge Wilson const mdb_arg_t *argv) 3515*dcbf3bd6SGeorge Wilson { 3516*dcbf3bd6SGeorge Wilson arc_compression_stats_data_t data = { 0 }; 3517*dcbf3bd6SGeorge Wilson unsigned int max_shifted = SPA_MAXBLOCKSIZE >> SPA_MINBLOCKSHIFT; 3518*dcbf3bd6SGeorge Wilson unsigned int hist_size; 3519*dcbf3bd6SGeorge Wilson char range[32]; 3520*dcbf3bd6SGeorge Wilson int rc = DCMD_OK; 3521*dcbf3bd6SGeorge Wilson 3522*dcbf3bd6SGeorge Wilson if (mdb_getopts(argc, argv, 3523*dcbf3bd6SGeorge Wilson 'v', MDB_OPT_SETBITS, ARC_CFLAG_VERBOSE, &data.arc_cflags, 3524*dcbf3bd6SGeorge Wilson 'a', MDB_OPT_SETBITS, ARC_CFLAG_ANON, &data.arc_cflags, 3525*dcbf3bd6SGeorge Wilson 'b', MDB_OPT_SETBITS, ARC_CFLAG_BUFS, &data.arc_cflags, 3526*dcbf3bd6SGeorge Wilson 'r', MDB_OPT_SETBITS, ARC_CFLAG_MRU, &data.arc_cflags, 3527*dcbf3bd6SGeorge Wilson 'f', MDB_OPT_SETBITS, ARC_CFLAG_MFU, &data.arc_cflags) != argc) 3528*dcbf3bd6SGeorge Wilson return (DCMD_USAGE); 3529*dcbf3bd6SGeorge Wilson 3530*dcbf3bd6SGeorge Wilson if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_anon", &data.anon_sym) || 3531*dcbf3bd6SGeorge Wilson mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_mru", &data.mru_sym) || 3532*dcbf3bd6SGeorge Wilson mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_mru_ghost", &data.mrug_sym) || 3533*dcbf3bd6SGeorge Wilson mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_mfu", &data.mfu_sym) || 3534*dcbf3bd6SGeorge Wilson mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_mfu_ghost", &data.mfug_sym) || 3535*dcbf3bd6SGeorge Wilson mdb_lookup_by_obj(ZFS_OBJ_NAME, "ARC_l2c_only", &data.l2c_sym)) { 3536*dcbf3bd6SGeorge Wilson mdb_warn("can't find arc state symbol"); 3537*dcbf3bd6SGeorge Wilson return (DCMD_ERR); 3538*dcbf3bd6SGeorge Wilson } 3539*dcbf3bd6SGeorge Wilson 3540*dcbf3bd6SGeorge Wilson /* 3541*dcbf3bd6SGeorge Wilson * Determine the maximum expected size for any header, and use 3542*dcbf3bd6SGeorge Wilson * this to determine the number of buckets needed for each 3543*dcbf3bd6SGeorge Wilson * histogram. If ARC_CFLAG_VERBOSE is specified, this value is 3544*dcbf3bd6SGeorge Wilson * used directly; otherwise the log2 of the maximum size is 3545*dcbf3bd6SGeorge Wilson * used. Thus, if using a log2 scale there's a maximum of 10 3546*dcbf3bd6SGeorge Wilson * possible buckets, while the linear scale (when using 3547*dcbf3bd6SGeorge Wilson * ARC_CFLAG_VERBOSE) has a maximum of 257 buckets. 3548*dcbf3bd6SGeorge Wilson */ 3549*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_VERBOSE) 3550*dcbf3bd6SGeorge Wilson data.hist_nbuckets = max_shifted + 1; 3551*dcbf3bd6SGeorge Wilson else 3552*dcbf3bd6SGeorge Wilson data.hist_nbuckets = highbit64(max_shifted) + 1; 3553*dcbf3bd6SGeorge Wilson 3554*dcbf3bd6SGeorge Wilson hist_size = sizeof (uint64_t) * data.hist_nbuckets; 3555*dcbf3bd6SGeorge Wilson 3556*dcbf3bd6SGeorge Wilson data.anon_c_hist = mdb_zalloc(hist_size, UM_SLEEP); 3557*dcbf3bd6SGeorge Wilson data.anon_u_hist = mdb_zalloc(hist_size, UM_SLEEP); 3558*dcbf3bd6SGeorge Wilson data.anon_bufs = mdb_zalloc(hist_size, UM_SLEEP); 3559*dcbf3bd6SGeorge Wilson 3560*dcbf3bd6SGeorge Wilson data.mru_c_hist = mdb_zalloc(hist_size, UM_SLEEP); 3561*dcbf3bd6SGeorge Wilson data.mru_u_hist = mdb_zalloc(hist_size, UM_SLEEP); 3562*dcbf3bd6SGeorge Wilson data.mru_bufs = mdb_zalloc(hist_size, UM_SLEEP); 3563*dcbf3bd6SGeorge Wilson 3564*dcbf3bd6SGeorge Wilson data.mfu_c_hist = mdb_zalloc(hist_size, UM_SLEEP); 3565*dcbf3bd6SGeorge Wilson data.mfu_u_hist = mdb_zalloc(hist_size, UM_SLEEP); 3566*dcbf3bd6SGeorge Wilson data.mfu_bufs = mdb_zalloc(hist_size, UM_SLEEP); 3567*dcbf3bd6SGeorge Wilson 3568*dcbf3bd6SGeorge Wilson data.all_c_hist = mdb_zalloc(hist_size, UM_SLEEP); 3569*dcbf3bd6SGeorge Wilson data.all_u_hist = mdb_zalloc(hist_size, UM_SLEEP); 3570*dcbf3bd6SGeorge Wilson data.all_bufs = mdb_zalloc(hist_size, UM_SLEEP); 3571*dcbf3bd6SGeorge Wilson 3572*dcbf3bd6SGeorge Wilson if (mdb_walk("arc_buf_hdr_t_full", arc_compression_stats_cb, 3573*dcbf3bd6SGeorge Wilson &data) != 0) { 3574*dcbf3bd6SGeorge Wilson mdb_warn("can't walk arc_buf_hdr's"); 3575*dcbf3bd6SGeorge Wilson rc = DCMD_ERR; 3576*dcbf3bd6SGeorge Wilson goto out; 3577*dcbf3bd6SGeorge Wilson } 3578*dcbf3bd6SGeorge Wilson 3579*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_VERBOSE) { 3580*dcbf3bd6SGeorge Wilson rc = mdb_snprintf(range, sizeof (range), 3581*dcbf3bd6SGeorge Wilson "[n*%llu, (n+1)*%llu)", SPA_MINBLOCKSIZE, 3582*dcbf3bd6SGeorge Wilson SPA_MINBLOCKSIZE); 3583*dcbf3bd6SGeorge Wilson } else { 3584*dcbf3bd6SGeorge Wilson rc = mdb_snprintf(range, sizeof (range), 3585*dcbf3bd6SGeorge Wilson "[2^(n-1)*%llu, 2^n*%llu)", SPA_MINBLOCKSIZE, 3586*dcbf3bd6SGeorge Wilson SPA_MINBLOCKSIZE); 3587*dcbf3bd6SGeorge Wilson } 3588*dcbf3bd6SGeorge Wilson 3589*dcbf3bd6SGeorge Wilson if (rc < 0) { 3590*dcbf3bd6SGeorge Wilson /* snprintf failed, abort the dcmd */ 3591*dcbf3bd6SGeorge Wilson rc = DCMD_ERR; 3592*dcbf3bd6SGeorge Wilson goto out; 3593*dcbf3bd6SGeorge Wilson } else { 3594*dcbf3bd6SGeorge Wilson /* snprintf succeeded above, reset return code */ 3595*dcbf3bd6SGeorge Wilson rc = DCMD_OK; 3596*dcbf3bd6SGeorge Wilson } 3597*dcbf3bd6SGeorge Wilson 3598*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_ANON) { 3599*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_BUFS) { 3600*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of the number of anon buffers " 3601*dcbf3bd6SGeorge Wilson "that are associated with an arc hdr.\n"); 3602*dcbf3bd6SGeorge Wilson dump_histogram(data.anon_bufs, data.hist_nbuckets, 0); 3603*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3604*dcbf3bd6SGeorge Wilson } 3605*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of compressed anon buffers.\n" 3606*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3607*dcbf3bd6SGeorge Wilson dump_histogram(data.anon_c_hist, data.hist_nbuckets, 0); 3608*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3609*dcbf3bd6SGeorge Wilson 3610*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of uncompressed anon buffers.\n" 3611*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3612*dcbf3bd6SGeorge Wilson dump_histogram(data.anon_u_hist, data.hist_nbuckets, 0); 3613*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3614*dcbf3bd6SGeorge Wilson } 3615*dcbf3bd6SGeorge Wilson 3616*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_MRU) { 3617*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_BUFS) { 3618*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of the number of mru buffers " 3619*dcbf3bd6SGeorge Wilson "that are associated with an arc hdr.\n"); 3620*dcbf3bd6SGeorge Wilson dump_histogram(data.mru_bufs, data.hist_nbuckets, 0); 3621*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3622*dcbf3bd6SGeorge Wilson } 3623*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of compressed mru buffers.\n" 3624*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3625*dcbf3bd6SGeorge Wilson dump_histogram(data.mru_c_hist, data.hist_nbuckets, 0); 3626*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3627*dcbf3bd6SGeorge Wilson 3628*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of uncompressed mru buffers.\n" 3629*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3630*dcbf3bd6SGeorge Wilson dump_histogram(data.mru_u_hist, data.hist_nbuckets, 0); 3631*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3632*dcbf3bd6SGeorge Wilson } 3633*dcbf3bd6SGeorge Wilson 3634*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_MFU) { 3635*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_BUFS) { 3636*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of the number of mfu buffers " 3637*dcbf3bd6SGeorge Wilson "that are associated with an arc hdr.\n"); 3638*dcbf3bd6SGeorge Wilson dump_histogram(data.mfu_bufs, data.hist_nbuckets, 0); 3639*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3640*dcbf3bd6SGeorge Wilson } 3641*dcbf3bd6SGeorge Wilson 3642*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of compressed mfu buffers.\n" 3643*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3644*dcbf3bd6SGeorge Wilson dump_histogram(data.mfu_c_hist, data.hist_nbuckets, 0); 3645*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3646*dcbf3bd6SGeorge Wilson 3647*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of uncompressed mfu buffers.\n" 3648*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3649*dcbf3bd6SGeorge Wilson dump_histogram(data.mfu_u_hist, data.hist_nbuckets, 0); 3650*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3651*dcbf3bd6SGeorge Wilson } 3652*dcbf3bd6SGeorge Wilson 3653*dcbf3bd6SGeorge Wilson if (data.arc_cflags & ARC_CFLAG_BUFS) { 3654*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of all buffers that " 3655*dcbf3bd6SGeorge Wilson "are associated with an arc hdr.\n"); 3656*dcbf3bd6SGeorge Wilson dump_histogram(data.all_bufs, data.hist_nbuckets, 0); 3657*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3658*dcbf3bd6SGeorge Wilson } 3659*dcbf3bd6SGeorge Wilson 3660*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of all compressed buffers.\n" 3661*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3662*dcbf3bd6SGeorge Wilson dump_histogram(data.all_c_hist, data.hist_nbuckets, 0); 3663*dcbf3bd6SGeorge Wilson mdb_printf("\n"); 3664*dcbf3bd6SGeorge Wilson 3665*dcbf3bd6SGeorge Wilson mdb_printf("Histogram of all uncompressed buffers.\n" 3666*dcbf3bd6SGeorge Wilson "Each bucket represents buffers of size: %s.\n", range); 3667*dcbf3bd6SGeorge Wilson dump_histogram(data.all_u_hist, data.hist_nbuckets, 0); 3668*dcbf3bd6SGeorge Wilson 3669*dcbf3bd6SGeorge Wilson out: 3670*dcbf3bd6SGeorge Wilson mdb_free(data.anon_c_hist, hist_size); 3671*dcbf3bd6SGeorge Wilson mdb_free(data.anon_u_hist, hist_size); 3672*dcbf3bd6SGeorge Wilson mdb_free(data.anon_bufs, hist_size); 3673*dcbf3bd6SGeorge Wilson 3674*dcbf3bd6SGeorge Wilson mdb_free(data.mru_c_hist, hist_size); 3675*dcbf3bd6SGeorge Wilson mdb_free(data.mru_u_hist, hist_size); 3676*dcbf3bd6SGeorge Wilson mdb_free(data.mru_bufs, hist_size); 3677*dcbf3bd6SGeorge Wilson 3678*dcbf3bd6SGeorge Wilson mdb_free(data.mfu_c_hist, hist_size); 3679*dcbf3bd6SGeorge Wilson mdb_free(data.mfu_u_hist, hist_size); 3680*dcbf3bd6SGeorge Wilson mdb_free(data.mfu_bufs, hist_size); 3681*dcbf3bd6SGeorge Wilson 3682*dcbf3bd6SGeorge Wilson mdb_free(data.all_c_hist, hist_size); 3683*dcbf3bd6SGeorge Wilson mdb_free(data.all_u_hist, hist_size); 3684*dcbf3bd6SGeorge Wilson mdb_free(data.all_bufs, hist_size); 3685*dcbf3bd6SGeorge Wilson 3686*dcbf3bd6SGeorge Wilson return (rc); 3687*dcbf3bd6SGeorge Wilson } 3688*dcbf3bd6SGeorge Wilson 3689fa9e4066Sahrens /* 3690fa9e4066Sahrens * MDB module linkage information: 3691fa9e4066Sahrens * 3692fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 3693fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 3694fa9e4066Sahrens */ 3695fa9e4066Sahrens 3696fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 369791ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 3698fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 3699fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 3700fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 3701fa9e4066Sahrens { "dbufs", 37024223fc7cSMark Shellenbaum "\t[-O objset_t*] [-n objset_name | \"mos\"] " 3703a3f829aeSBill Moore "[-o object | \"mdn\"] \n" 3704a3f829aeSBill Moore "\t[-l level] [-b blkid | \"bonus\"]", 3705a3f829aeSBill Moore "find dmu_buf_impl_t's that match specified criteria", dbufs }, 3706fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 3707a3f829aeSBill Moore "find arc_buf_hdr_t of a specified DVA", 3708a3f829aeSBill Moore abuf_find }, 37092e4c9986SGeorge Wilson { "spa", "?[-cevmMh]\n" 37102e4c9986SGeorge Wilson "\t-c display spa config\n" 37112e4c9986SGeorge Wilson "\t-e display vdev statistics\n" 37122e4c9986SGeorge Wilson "\t-v display vdev information\n" 37132e4c9986SGeorge Wilson "\t-m display metaslab statistics\n" 37142e4c9986SGeorge Wilson "\t-M display metaslab group statistics\n" 37152e4c9986SGeorge Wilson "\t-h display histogram (requires -m or -M)\n", 37162e4c9986SGeorge Wilson "spa_t summary", spa_print }, 3717fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 3718fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 37192e4c9986SGeorge Wilson { "spa_vdevs", ":[-emMh]\n" 37202e4c9986SGeorge Wilson "\t-e display vdev statistics\n" 37212e4c9986SGeorge Wilson "\t-m dispaly metaslab statistics\n" 37222e4c9986SGeorge Wilson "\t-M display metaslab group statistic\n" 37232e4c9986SGeorge Wilson "\t-h display histogram (requires -m or -M)\n", 37242e4c9986SGeorge Wilson "given a spa_t, print vdev summary", spa_vdevs }, 372591ebeef5Sahrens { "vdev", ":[-re]\n" 3726a3f829aeSBill Moore "\t-r display recursively\n" 37272e4c9986SGeorge Wilson "\t-e display statistics\n" 37282e4c9986SGeorge Wilson "\t-m display metaslab statistics\n" 37292e4c9986SGeorge Wilson "\t-M display metaslab group statistics\n" 37302e4c9986SGeorge Wilson "\t-h display histogram (requires -m or -M)\n", 3731a3f829aeSBill Moore "vdev_t summary", vdev_print }, 37322e4c9986SGeorge Wilson { "zio", ":[-cpr]\n" 3733a3f829aeSBill Moore "\t-c display children\n" 3734a3f829aeSBill Moore "\t-p display parents\n" 3735a3f829aeSBill Moore "\t-r display recursively", 3736a3f829aeSBill Moore "zio_t summary", zio_print }, 3737ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 3738ccae0b50Seschrock "for a particular pool", zio_state }, 373988b7b0f2SMatthew Ahrens { "zfs_blkstats", ":[-v]", 374088b7b0f2SMatthew Ahrens "given a spa_t, print block type stats from last scrub", 374188b7b0f2SMatthew Ahrens zfs_blkstats }, 3742614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 374328e4da25SMatthew Ahrens { "refcount", ":[-r]\n" 374428e4da25SMatthew Ahrens "\t-r display recently removed references", 374528e4da25SMatthew Ahrens "print refcount_t holders", refcount }, 37463f1f8012SMatthew Ahrens { "zap_leaf", "", "print zap_leaf_phys_t", zap_leaf }, 37470a586ceaSMark Shellenbaum { "zfs_aces", ":[-v]", "print all ACEs from a zfs_acl_t", 37480a586ceaSMark Shellenbaum zfs_acl_dump }, 37490a586ceaSMark Shellenbaum { "zfs_ace", ":[-v]", "print zfs_ace", zfs_ace_print }, 37500a586ceaSMark Shellenbaum { "zfs_ace0", ":[-v]", "print zfs_ace0", zfs_ace0_print }, 37510a586ceaSMark Shellenbaum { "sa_attr_table", ":", "print SA attribute table from sa_os_t", 37520a586ceaSMark Shellenbaum sa_attr_table}, 37530a586ceaSMark Shellenbaum { "sa_attr", ": attr_id", 37540a586ceaSMark Shellenbaum "print SA attribute address when given sa_handle_t", sa_attr_print}, 375528e4da25SMatthew Ahrens { "zfs_dbgmsg", ":[-va]", 37563f9d6ad7SLin Ling "print zfs debug log", dbgmsg}, 375728e4da25SMatthew Ahrens { "rrwlock", ":", 375828e4da25SMatthew Ahrens "print rrwlock_t, including readers", rrwlock}, 3759*dcbf3bd6SGeorge Wilson { "arc_compression_stats", ":[-vabrf]\n" 3760*dcbf3bd6SGeorge Wilson "\t-v verbose, display a linearly scaled histogram\n" 3761*dcbf3bd6SGeorge Wilson "\t-a display ARC_anon state statistics individually\n" 3762*dcbf3bd6SGeorge Wilson "\t-r display ARC_mru state statistics individually\n" 3763*dcbf3bd6SGeorge Wilson "\t-f display ARC_mfu state statistics individually\n" 3764*dcbf3bd6SGeorge Wilson "\t-b display histogram of buffer counts\n", 3765*dcbf3bd6SGeorge Wilson "print a histogram of compressed arc buffer sizes", 3766*dcbf3bd6SGeorge Wilson arc_compression_stats}, 3767fa9e4066Sahrens { NULL } 3768fa9e4066Sahrens }; 3769fa9e4066Sahrens 3770fa9e4066Sahrens static const mdb_walker_t walkers[] = { 3771fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 377228e4da25SMatthew Ahrens freelist_walk_init, freelist_walk_step, NULL }, 3773fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 377428e4da25SMatthew Ahrens txg_list_walk_init, txg_list_walk_step, NULL }, 3775fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 377628e4da25SMatthew Ahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 3777fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 377828e4da25SMatthew Ahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 3779fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 378028e4da25SMatthew Ahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 3781fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 378228e4da25SMatthew Ahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 3783ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 378428e4da25SMatthew Ahrens zio_walk_init, zio_walk_step, NULL }, 378528e4da25SMatthew Ahrens { "zio_root", 378628e4da25SMatthew Ahrens "walk all root zio_t structures, optionally for a particular spa_t", 378728e4da25SMatthew Ahrens zio_walk_init, zio_walk_root_step, NULL }, 3788fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 378928e4da25SMatthew Ahrens spa_walk_init, spa_walk_step, NULL }, 37905f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 379128e4da25SMatthew Ahrens metaslab_walk_init, metaslab_walk_step, NULL }, 3792*dcbf3bd6SGeorge Wilson { "multilist", "given a multilist_t *, walk all list_t structures", 3793*dcbf3bd6SGeorge Wilson multilist_walk_init, multilist_walk_step, NULL }, 37940a586ceaSMark Shellenbaum { "zfs_acl_node", "given a zfs_acl_t, walk all zfs_acl_nodes", 37950a586ceaSMark Shellenbaum zfs_acl_node_walk_init, zfs_acl_node_walk_step, NULL }, 37960a586ceaSMark Shellenbaum { "zfs_acl_node_aces", "given a zfs_acl_node_t, walk all ACEs", 37970a586ceaSMark Shellenbaum zfs_acl_node_aces_walk_init, zfs_aces_walk_step, NULL }, 37980a586ceaSMark Shellenbaum { "zfs_acl_node_aces0", 37990a586ceaSMark Shellenbaum "given a zfs_acl_node_t, walk all ACEs as ace_t", 38000a586ceaSMark Shellenbaum zfs_acl_node_aces0_walk_init, zfs_aces_walk_step, NULL }, 3801fa9e4066Sahrens { NULL } 3802fa9e4066Sahrens }; 3803fa9e4066Sahrens 3804fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 3805fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 3806fa9e4066Sahrens }; 3807fa9e4066Sahrens 3808fa9e4066Sahrens const mdb_modinfo_t * 3809fa9e4066Sahrens _mdb_init(void) 3810fa9e4066Sahrens { 3811fa9e4066Sahrens return (&modinfo); 3812fa9e4066Sahrens } 3813