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 /* 228053a263Sck153898 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #pragma ident "%Z%%M% %I% %E% SMI" 27fa9e4066Sahrens 28fa9e4066Sahrens #include <mdb/mdb_ctf.h> 29fa9e4066Sahrens #include <sys/zfs_context.h> 30fa9e4066Sahrens #include <sys/mdb_modapi.h> 31fa9e4066Sahrens #include <sys/dbuf.h> 32fa9e4066Sahrens #include <sys/dmu_objset.h> 33fa9e4066Sahrens #include <sys/dsl_dir.h> 34fa9e4066Sahrens #include <sys/dsl_pool.h> 35fa9e4066Sahrens #include <sys/metaslab_impl.h> 36fa9e4066Sahrens #include <sys/space_map.h> 37fa9e4066Sahrens #include <sys/list.h> 38fa9e4066Sahrens #include <sys/spa_impl.h> 39fa9e4066Sahrens #include <sys/vdev_impl.h> 40fa9e4066Sahrens #include <sys/zio_compress.h> 41fa9e4066Sahrens 42fa9e4066Sahrens #ifndef _KERNEL 43fa9e4066Sahrens #include "../genunix/list.h" 44fa9e4066Sahrens #endif 45fa9e4066Sahrens 46fa9e4066Sahrens #ifdef _KERNEL 47fa9e4066Sahrens #define ZFS_OBJ_NAME "zfs" 48fa9e4066Sahrens #else 49fa9e4066Sahrens #define ZFS_OBJ_NAME "libzpool.so.1" 50fa9e4066Sahrens #endif 51fa9e4066Sahrens 52fa9e4066Sahrens static char * 53fa9e4066Sahrens local_strdup(const char *s) 54fa9e4066Sahrens { 55fa9e4066Sahrens char *s1 = mdb_alloc(strlen(s) + 1, UM_SLEEP); 56fa9e4066Sahrens 57fa9e4066Sahrens (void) strcpy(s1, s); 58fa9e4066Sahrens return (s1); 59fa9e4066Sahrens } 60fa9e4066Sahrens 61fa9e4066Sahrens static int 62fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 63fa9e4066Sahrens const char *member, int len, void *buf) 64fa9e4066Sahrens { 65fa9e4066Sahrens mdb_ctf_id_t id; 66fa9e4066Sahrens ulong_t off; 67fa9e4066Sahrens char name[64]; 68fa9e4066Sahrens 69fa9e4066Sahrens if (idp == NULL) { 70fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 71fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 72fa9e4066Sahrens return (DCMD_ERR); 73fa9e4066Sahrens } 74fa9e4066Sahrens idp = &id; 75fa9e4066Sahrens } else { 76fa9e4066Sahrens type = name; 77fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 78fa9e4066Sahrens } 79fa9e4066Sahrens 80fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 81fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 82fa9e4066Sahrens return (DCMD_ERR); 83fa9e4066Sahrens } 84fa9e4066Sahrens if (off % 8 != 0) { 85fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 86fa9e4066Sahrens member, type); 87fa9e4066Sahrens return (DCMD_ERR); 88fa9e4066Sahrens } 89fa9e4066Sahrens off /= 8; 90fa9e4066Sahrens 91fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 92fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 93fa9e4066Sahrens member, type, addr + off); 94fa9e4066Sahrens return (DCMD_ERR); 95fa9e4066Sahrens } 96fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 97fa9e4066Sahrens 98fa9e4066Sahrens return (0); 99fa9e4066Sahrens } 100fa9e4066Sahrens 101fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 102fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 103fa9e4066Sahrens 104fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 105fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 106fa9e4066Sahrens 107fa9e4066Sahrens static int 108fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 109fa9e4066Sahrens const char *member, uint64_t *rc) 110fa9e4066Sahrens { 111fa9e4066Sahrens static int gotid; 112fa9e4066Sahrens static mdb_ctf_id_t rc_id; 113fa9e4066Sahrens ulong_t off; 114fa9e4066Sahrens 115fa9e4066Sahrens if (!gotid) { 116fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 117fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 118fa9e4066Sahrens return (DCMD_ERR); 119fa9e4066Sahrens } 120fa9e4066Sahrens gotid = TRUE; 121fa9e4066Sahrens } 122fa9e4066Sahrens 123fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 124fa9e4066Sahrens char name[64]; 125fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 126fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 127fa9e4066Sahrens return (DCMD_ERR); 128fa9e4066Sahrens } 129fa9e4066Sahrens off /= 8; 130fa9e4066Sahrens 131fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 132fa9e4066Sahrens } 133fa9e4066Sahrens 134fa9e4066Sahrens static int 135fa9e4066Sahrens read_symbol(char *sym_name, void **bufp) 136fa9e4066Sahrens { 137fa9e4066Sahrens GElf_Sym sym; 138fa9e4066Sahrens 139fa9e4066Sahrens if (mdb_lookup_by_obj(MDB_TGT_OBJ_EVERY, sym_name, &sym)) { 140fa9e4066Sahrens mdb_warn("can't find symbol %s", sym_name); 141fa9e4066Sahrens return (DCMD_ERR); 142fa9e4066Sahrens } 143fa9e4066Sahrens 144fa9e4066Sahrens *bufp = mdb_alloc(sym.st_size, UM_SLEEP); 145fa9e4066Sahrens 146fa9e4066Sahrens if (mdb_vread(*bufp, sym.st_size, sym.st_value) == -1) { 147fa9e4066Sahrens mdb_warn("can't read data for symbol %s", sym_name); 148fa9e4066Sahrens mdb_free(*bufp, sym.st_size); 149fa9e4066Sahrens return (DCMD_ERR); 150fa9e4066Sahrens } 151fa9e4066Sahrens 152fa9e4066Sahrens return (DCMD_OK); 153fa9e4066Sahrens } 154fa9e4066Sahrens 155fa9e4066Sahrens static int verbose; 156fa9e4066Sahrens 157fa9e4066Sahrens static int 158fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 159fa9e4066Sahrens { 160fa9e4066Sahrens if (wsp->walk_addr == NULL) { 161fa9e4066Sahrens mdb_warn("must supply starting address\n"); 162fa9e4066Sahrens return (WALK_ERR); 163fa9e4066Sahrens } 164fa9e4066Sahrens 165fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 166fa9e4066Sahrens return (WALK_NEXT); 167fa9e4066Sahrens } 168fa9e4066Sahrens 169fa9e4066Sahrens static int 170fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 171fa9e4066Sahrens { 172fa9e4066Sahrens uint64_t entry; 173fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1748053a263Sck153898 char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1758053a263Sck153898 "INVALID", "INVALID", "INVALID", "INVALID" }; 176fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 177fa9e4066Sahrens 178fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 179fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 180fa9e4066Sahrens return (WALK_DONE); 181fa9e4066Sahrens } 182fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 183fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 184fa9e4066Sahrens 185fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 186fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 187fa9e4066Sahrens number, 188fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 189fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 190fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 191fa9e4066Sahrens } else { 192fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 193fa9e4066Sahrens "size=%06llx", number, 194fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 195fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 196fa9e4066Sahrens mapshift, 197fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 198fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 199fa9e4066Sahrens if (verbose) 200fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 201fa9e4066Sahrens mdb_printf("\n"); 202fa9e4066Sahrens } 203fa9e4066Sahrens return (WALK_NEXT); 204fa9e4066Sahrens } 205fa9e4066Sahrens 206fa9e4066Sahrens 207fa9e4066Sahrens static int 208fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 209fa9e4066Sahrens { 210fa9e4066Sahrens static int gotid; 211fa9e4066Sahrens static mdb_ctf_id_t dd_id; 212fa9e4066Sahrens uintptr_t dd_parent; 213fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 214fa9e4066Sahrens 215fa9e4066Sahrens if (!gotid) { 216fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 217fa9e4066Sahrens &dd_id) == -1) { 218fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 219fa9e4066Sahrens return (DCMD_ERR); 220fa9e4066Sahrens } 221fa9e4066Sahrens gotid = TRUE; 222fa9e4066Sahrens } 223fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 224fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 225fa9e4066Sahrens return (DCMD_ERR); 226fa9e4066Sahrens } 227fa9e4066Sahrens 228fa9e4066Sahrens if (dd_parent) { 229fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 230fa9e4066Sahrens return (DCMD_ERR); 231fa9e4066Sahrens strcat(buf, "/"); 232fa9e4066Sahrens } 233fa9e4066Sahrens 234fa9e4066Sahrens if (dd_myname[0]) 235fa9e4066Sahrens strcat(buf, dd_myname); 236fa9e4066Sahrens else 237fa9e4066Sahrens strcat(buf, "???"); 238fa9e4066Sahrens 239fa9e4066Sahrens return (0); 240fa9e4066Sahrens } 241fa9e4066Sahrens 242fa9e4066Sahrens static int 243fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 244fa9e4066Sahrens { 245fa9e4066Sahrens static int gotid; 246fa9e4066Sahrens static mdb_ctf_id_t osi_id, ds_id; 247fa9e4066Sahrens uintptr_t os_dsl_dataset; 248fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 249fa9e4066Sahrens uintptr_t ds_dir; 250fa9e4066Sahrens 251fa9e4066Sahrens buf[0] = '\0'; 252fa9e4066Sahrens 253fa9e4066Sahrens if (!gotid) { 254fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct objset_impl", 255fa9e4066Sahrens &osi_id) == -1) { 256fa9e4066Sahrens mdb_warn("couldn't find struct objset_impl"); 257fa9e4066Sahrens return (DCMD_ERR); 258fa9e4066Sahrens } 259fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 260fa9e4066Sahrens &ds_id) == -1) { 261fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 262fa9e4066Sahrens return (DCMD_ERR); 263fa9e4066Sahrens } 264fa9e4066Sahrens 265fa9e4066Sahrens gotid = TRUE; 266fa9e4066Sahrens } 267fa9e4066Sahrens 268fa9e4066Sahrens if (GETMEMBID(addr, &osi_id, os_dsl_dataset, os_dsl_dataset)) 269fa9e4066Sahrens return (DCMD_ERR); 270fa9e4066Sahrens 271fa9e4066Sahrens if (os_dsl_dataset == 0) { 272fa9e4066Sahrens strcat(buf, "mos"); 273fa9e4066Sahrens return (0); 274fa9e4066Sahrens } 275fa9e4066Sahrens 276fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 277fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 278fa9e4066Sahrens return (DCMD_ERR); 279fa9e4066Sahrens } 280fa9e4066Sahrens 281fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 282fa9e4066Sahrens return (DCMD_ERR); 283fa9e4066Sahrens 284fa9e4066Sahrens if (ds_snapname[0]) { 285fa9e4066Sahrens strcat(buf, "@"); 286fa9e4066Sahrens strcat(buf, ds_snapname); 287fa9e4066Sahrens } 288fa9e4066Sahrens return (0); 289fa9e4066Sahrens } 290fa9e4066Sahrens 291fa9e4066Sahrens static void 292fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 293fa9e4066Sahrens const char *prefix) 294fa9e4066Sahrens { 295fa9e4066Sahrens const char *cp; 296fa9e4066Sahrens size_t len = strlen(prefix); 297fa9e4066Sahrens 298fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 299fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 300fa9e4066Sahrens cp += len; 301fa9e4066Sahrens (void) strncpy(out, cp, size); 302fa9e4066Sahrens } else { 303fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 304fa9e4066Sahrens } 305fa9e4066Sahrens } 306fa9e4066Sahrens 307fa9e4066Sahrens /* ARGSUSED */ 308fa9e4066Sahrens static int 309fa9e4066Sahrens zio_pipeline(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 310fa9e4066Sahrens { 311fa9e4066Sahrens mdb_ctf_id_t pipe_enum; 312fa9e4066Sahrens int i; 313fa9e4066Sahrens char stage[1024]; 314fa9e4066Sahrens 315fa9e4066Sahrens if (mdb_ctf_lookup_by_name("enum zio_stage", &pipe_enum) == -1) { 316fa9e4066Sahrens mdb_warn("Could not find enum zio_stage"); 317fa9e4066Sahrens return (DCMD_ERR); 318fa9e4066Sahrens } 319fa9e4066Sahrens 320fa9e4066Sahrens for (i = 0; i < 32; i++) { 321fa9e4066Sahrens if (addr & (1U << i)) { 322fa9e4066Sahrens enum_lookup(stage, sizeof (stage), pipe_enum, i, 323fa9e4066Sahrens "ZIO_STAGE_"); 324fa9e4066Sahrens mdb_printf(" %s\n", stage); 325fa9e4066Sahrens } 326fa9e4066Sahrens } 327fa9e4066Sahrens 328fa9e4066Sahrens return (DCMD_OK); 329fa9e4066Sahrens } 330fa9e4066Sahrens 331fa9e4066Sahrens /* ARGSUSED */ 332fa9e4066Sahrens static int 333614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 334614409b5Sahrens { 335614409b5Sahrens /* 336614409b5Sahrens * This table can be approximately generated by running: 337614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 338614409b5Sahrens */ 339614409b5Sahrens static const char *params[] = { 340614409b5Sahrens "arc_reduce_dnlc_percent", 341614409b5Sahrens "zfs_arc_max", 342614409b5Sahrens "zfs_arc_min", 34349e3519aSmaybee "arc_shrink_shift", 344614409b5Sahrens "zfs_mdcomp_disable", 345614409b5Sahrens "zfs_prefetch_disable", 346614409b5Sahrens "zfetch_max_streams", 347614409b5Sahrens "zfetch_min_sec_reap", 348614409b5Sahrens "zfetch_block_cap", 349614409b5Sahrens "zfetch_array_rd_sz", 350614409b5Sahrens "zfs_default_bs", 351614409b5Sahrens "zfs_default_ibs", 352614409b5Sahrens "metaslab_aliquot", 353614409b5Sahrens "reference_tracking_enable", 354614409b5Sahrens "reference_history", 355614409b5Sahrens "zio_taskq_threads", 356614409b5Sahrens "spa_max_replication_override", 357614409b5Sahrens "spa_mode", 358614409b5Sahrens "zfs_flags", 359614409b5Sahrens "txg_time", 360614409b5Sahrens "zfs_vdev_cache_max", 361614409b5Sahrens "zfs_vdev_cache_size", 362614409b5Sahrens "zfs_vdev_cache_bshift", 363614409b5Sahrens "vdev_mirror_shift", 364614409b5Sahrens "zfs_vdev_max_pending", 365614409b5Sahrens "zfs_vdev_min_pending", 366614409b5Sahrens "zfs_scrub_limit", 367614409b5Sahrens "zfs_vdev_time_shift", 368614409b5Sahrens "zfs_vdev_ramp_rate", 369614409b5Sahrens "zfs_vdev_aggregation_limit", 370614409b5Sahrens "fzap_default_block_shift", 371614409b5Sahrens "zfs_immediate_write_sz", 372614409b5Sahrens "zfs_read_chunk_size", 373614409b5Sahrens "zil_disable", 374614409b5Sahrens "zfs_nocacheflush", 375614409b5Sahrens "zio_gang_bang", 376614409b5Sahrens "zio_injection_enabled", 377614409b5Sahrens "zvol_immediate_write_sz", 378614409b5Sahrens }; 379614409b5Sahrens int i; 380614409b5Sahrens 381614409b5Sahrens for (i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 382614409b5Sahrens int sz; 383614409b5Sahrens uint64_t val64; 384614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 385614409b5Sahrens 386614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 387614409b5Sahrens if (sz == 4) { 388614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 389614409b5Sahrens } else if (sz == 8) { 390614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 391614409b5Sahrens } else { 392614409b5Sahrens mdb_warn("variable %s not found", params[i]); 393614409b5Sahrens } 394614409b5Sahrens } 395614409b5Sahrens 396614409b5Sahrens return (DCMD_OK); 397614409b5Sahrens } 398614409b5Sahrens 399614409b5Sahrens /* ARGSUSED */ 400614409b5Sahrens static int 401fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 402fa9e4066Sahrens { 403fa9e4066Sahrens blkptr_t bp; 404fa9e4066Sahrens dmu_object_type_info_t *doti; 405fa9e4066Sahrens zio_compress_info_t *zct; 406fa9e4066Sahrens zio_checksum_info_t *zci; 407fa9e4066Sahrens int i; 408fa9e4066Sahrens char buf[MAXPATHLEN]; 409fa9e4066Sahrens 410fa9e4066Sahrens if (mdb_vread(&bp, sizeof (blkptr_t), addr) == -1) { 411fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 412fa9e4066Sahrens return (DCMD_ERR); 413fa9e4066Sahrens } 414fa9e4066Sahrens 415fa9e4066Sahrens if (read_symbol("dmu_ot", (void **)&doti) != DCMD_OK) 416fa9e4066Sahrens return (DCMD_ERR); 417fa9e4066Sahrens for (i = 0; i < DMU_OT_NUMTYPES; i++) { 418fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)doti[i].ot_name); 419fa9e4066Sahrens doti[i].ot_name = local_strdup(buf); 420fa9e4066Sahrens } 421fa9e4066Sahrens 422fa9e4066Sahrens if (read_symbol("zio_checksum_table", (void **)&zci) != DCMD_OK) 423fa9e4066Sahrens return (DCMD_ERR); 424fa9e4066Sahrens for (i = 0; i < ZIO_CHECKSUM_FUNCTIONS; i++) { 425fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zci[i].ci_name); 426fa9e4066Sahrens zci[i].ci_name = local_strdup(buf); 427fa9e4066Sahrens } 428fa9e4066Sahrens 429fa9e4066Sahrens if (read_symbol("zio_compress_table", (void **)&zct) != DCMD_OK) 430fa9e4066Sahrens return (DCMD_ERR); 431fa9e4066Sahrens for (i = 0; i < ZIO_COMPRESS_FUNCTIONS; i++) { 432fa9e4066Sahrens mdb_readstr(buf, sizeof (buf), (uintptr_t)zct[i].ci_name); 433fa9e4066Sahrens zct[i].ci_name = local_strdup(buf); 434fa9e4066Sahrens } 435fa9e4066Sahrens 43644cd46caSbillm /* 43744cd46caSbillm * Super-ick warning: This code is also duplicated in 43844cd46caSbillm * cmd/zdb.c . Yeah, I hate code replication, too. 43944cd46caSbillm */ 44044cd46caSbillm for (i = 0; i < BP_GET_NDVAS(&bp); i++) { 441ecc2d604Sbonwick dva_t *dva = &bp.blk_dva[i]; 44244cd46caSbillm 44344cd46caSbillm mdb_printf("DVA[%d]: vdev_id %lld / %llx\n", i, 44444cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva)); 44544cd46caSbillm mdb_printf("DVA[%d]: GANG: %-5s GRID: %04x\t" 44644cd46caSbillm "ASIZE: %llx\n", i, DVA_GET_GANG(dva) ? "TRUE" : "FALSE", 44744cd46caSbillm DVA_GET_GRID(dva), DVA_GET_ASIZE(dva)); 44844cd46caSbillm mdb_printf("DVA[%d]: :%llu:%llx:%llx:%s%s%s%s\n", i, 44944cd46caSbillm DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva), BP_GET_PSIZE(&bp), 45044cd46caSbillm BP_SHOULD_BYTESWAP(&bp) ? "e" : "", 45144cd46caSbillm !DVA_GET_GANG(dva) && BP_GET_LEVEL(&bp) != 0 ? "i" : "", 45244cd46caSbillm DVA_GET_GANG(dva) ? "g" : "", 45344cd46caSbillm BP_GET_COMPRESS(&bp) != 0 ? "d" : ""); 454fa9e4066Sahrens } 455fa9e4066Sahrens mdb_printf("LSIZE: %-16llx\t\tPSIZE: %llx\n", 456fa9e4066Sahrens BP_GET_LSIZE(&bp), BP_GET_PSIZE(&bp)); 45744cd46caSbillm mdb_printf("ENDIAN: %6s\t\t\t\t\tTYPE: %s\n", 458fa9e4066Sahrens BP_GET_BYTEORDER(&bp) ? "LITTLE" : "BIG", 459fa9e4066Sahrens doti[BP_GET_TYPE(&bp)].ot_name); 460fa9e4066Sahrens mdb_printf("BIRTH: %-16llx LEVEL: %-2d\tFILL: %llx\n", 461fa9e4066Sahrens bp.blk_birth, BP_GET_LEVEL(&bp), bp.blk_fill); 462fa9e4066Sahrens mdb_printf("CKFUNC: %-16s\t\tCOMP: %s\n", 463fa9e4066Sahrens zci[BP_GET_CHECKSUM(&bp)].ci_name, 464fa9e4066Sahrens zct[BP_GET_COMPRESS(&bp)].ci_name); 465fa9e4066Sahrens mdb_printf("CKSUM: %llx:%llx:%llx:%llx\n", 466fa9e4066Sahrens bp.blk_cksum.zc_word[0], 467fa9e4066Sahrens bp.blk_cksum.zc_word[1], 468fa9e4066Sahrens bp.blk_cksum.zc_word[2], 469fa9e4066Sahrens bp.blk_cksum.zc_word[3]); 470fa9e4066Sahrens 471fa9e4066Sahrens return (DCMD_OK); 472fa9e4066Sahrens } 473fa9e4066Sahrens 474fa9e4066Sahrens /* ARGSUSED */ 475fa9e4066Sahrens static int 476fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 477fa9e4066Sahrens { 478fa9e4066Sahrens mdb_ctf_id_t id; 479fa9e4066Sahrens dmu_buf_t db; 480fa9e4066Sahrens uintptr_t objset; 481fa9e4066Sahrens uint8_t level; 482fa9e4066Sahrens uint64_t blkid; 483fa9e4066Sahrens uint64_t holds; 484fa9e4066Sahrens char objectname[32]; 485fa9e4066Sahrens char blkidname[32]; 486fa9e4066Sahrens char path[MAXNAMELEN]; 487fa9e4066Sahrens 488fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 489fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 490fa9e4066Sahrens } 491fa9e4066Sahrens 492fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 493fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 494fa9e4066Sahrens return (DCMD_ERR); 495fa9e4066Sahrens } 496fa9e4066Sahrens 497fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 498fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 499fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 500fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 501fa9e4066Sahrens return (WALK_ERR); 502fa9e4066Sahrens } 503fa9e4066Sahrens 504fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 505fa9e4066Sahrens return (WALK_ERR); 506fa9e4066Sahrens } 507fa9e4066Sahrens 508fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 509fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 510fa9e4066Sahrens else 511fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 512fa9e4066Sahrens (u_longlong_t)db.db_object); 513fa9e4066Sahrens 514fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 515fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 516fa9e4066Sahrens else 517fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 518fa9e4066Sahrens (u_longlong_t)blkid); 519fa9e4066Sahrens 520fa9e4066Sahrens if (objset_name(objset, path)) { 521fa9e4066Sahrens return (WALK_ERR); 522fa9e4066Sahrens } 523fa9e4066Sahrens 524fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 525fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 526fa9e4066Sahrens 527fa9e4066Sahrens return (DCMD_OK); 528fa9e4066Sahrens } 529fa9e4066Sahrens 530fa9e4066Sahrens /* ARGSUSED */ 531fa9e4066Sahrens static int 532fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 533fa9e4066Sahrens { 534fa9e4066Sahrens #define HISTOSZ 32 535fa9e4066Sahrens uintptr_t dbp; 536fa9e4066Sahrens dmu_buf_impl_t db; 537fa9e4066Sahrens dbuf_hash_table_t ht; 538fa9e4066Sahrens uint64_t bucket, ndbufs; 539fa9e4066Sahrens uint64_t histo[HISTOSZ]; 540fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 541fa9e4066Sahrens int i, maxidx; 542fa9e4066Sahrens 543fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 544fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 545fa9e4066Sahrens return (DCMD_ERR); 546fa9e4066Sahrens } 547fa9e4066Sahrens 548fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 549fa9e4066Sahrens histo[i] = 0; 550fa9e4066Sahrens histo2[i] = 0; 551fa9e4066Sahrens } 552fa9e4066Sahrens 553fa9e4066Sahrens ndbufs = 0; 554fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 555fa9e4066Sahrens int len; 556fa9e4066Sahrens 557fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 558fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 559fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 560fa9e4066Sahrens bucket, ht.hash_table+bucket); 561fa9e4066Sahrens return (DCMD_ERR); 562fa9e4066Sahrens } 563fa9e4066Sahrens 564fa9e4066Sahrens len = 0; 565fa9e4066Sahrens while (dbp != 0) { 566fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 567fa9e4066Sahrens dbp) == -1) { 568fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 569fa9e4066Sahrens return (DCMD_ERR); 570fa9e4066Sahrens } 571fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 572fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 573fa9e4066Sahrens histo2[i]++; 574fa9e4066Sahrens len++; 575fa9e4066Sahrens ndbufs++; 576fa9e4066Sahrens } 577fa9e4066Sahrens 578fa9e4066Sahrens if (len >= HISTOSZ) 579fa9e4066Sahrens len = HISTOSZ-1; 580fa9e4066Sahrens histo[len]++; 581fa9e4066Sahrens } 582fa9e4066Sahrens 583fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 584fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 585fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 586fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 587fa9e4066Sahrens 588fa9e4066Sahrens mdb_printf("\n"); 589fa9e4066Sahrens maxidx = 0; 590fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 591fa9e4066Sahrens if (histo[i] > 0) 592fa9e4066Sahrens maxidx = i; 593fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 594fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 595fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 596fa9e4066Sahrens 597fa9e4066Sahrens mdb_printf("\n"); 598fa9e4066Sahrens maxidx = 0; 599fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 600fa9e4066Sahrens if (histo2[i] > 0) 601fa9e4066Sahrens maxidx = i; 602fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 603fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 604fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 605fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 606fa9e4066Sahrens 607fa9e4066Sahrens 608fa9e4066Sahrens return (DCMD_OK); 609fa9e4066Sahrens } 610fa9e4066Sahrens 611fa9e4066Sahrens typedef struct dbufs_data { 612fa9e4066Sahrens mdb_ctf_id_t id; 613fa9e4066Sahrens uint64_t objset; 614fa9e4066Sahrens uint64_t object; 615fa9e4066Sahrens uint64_t level; 616fa9e4066Sahrens uint64_t blkid; 617fa9e4066Sahrens char *osname; 618fa9e4066Sahrens } dbufs_data_t; 619fa9e4066Sahrens 620fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 621fa9e4066Sahrens 622fa9e4066Sahrens /* ARGSUSED */ 623fa9e4066Sahrens static int 624fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 625fa9e4066Sahrens { 626fa9e4066Sahrens dbufs_data_t *data = arg; 627fa9e4066Sahrens uintptr_t objset; 628fa9e4066Sahrens dmu_buf_t db; 629fa9e4066Sahrens uint8_t level; 630fa9e4066Sahrens uint64_t blkid; 631fa9e4066Sahrens char osname[MAXNAMELEN]; 632fa9e4066Sahrens 633fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 634fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 635fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 636fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 637fa9e4066Sahrens return (WALK_ERR); 638fa9e4066Sahrens } 639fa9e4066Sahrens 640fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 641fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 642fa9e4066Sahrens strcmp(data->osname, osname) == 0)) && 643fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 644fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 645fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 646fa9e4066Sahrens mdb_printf("%#lr\n", addr); 647fa9e4066Sahrens } 648fa9e4066Sahrens return (WALK_NEXT); 649fa9e4066Sahrens } 650fa9e4066Sahrens 651fa9e4066Sahrens /* ARGSUSED */ 652fa9e4066Sahrens static int 653fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 654fa9e4066Sahrens { 655fa9e4066Sahrens dbufs_data_t data; 656fa9e4066Sahrens char *object = NULL; 657fa9e4066Sahrens char *blkid = NULL; 658fa9e4066Sahrens 659fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 660fa9e4066Sahrens data.osname = NULL; 661fa9e4066Sahrens 662fa9e4066Sahrens if (mdb_getopts(argc, argv, 663fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 664fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 665fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 666fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 667fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 668fa9e4066Sahrens return (DCMD_USAGE); 669fa9e4066Sahrens } 670fa9e4066Sahrens 671fa9e4066Sahrens if (object) { 672fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 673fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 674fa9e4066Sahrens } else { 675fa9e4066Sahrens data.object = mdb_strtoull(object); 676fa9e4066Sahrens } 677fa9e4066Sahrens } 678fa9e4066Sahrens 679fa9e4066Sahrens if (blkid) { 680fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 681fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 682fa9e4066Sahrens } else { 683fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 684fa9e4066Sahrens } 685fa9e4066Sahrens } 686fa9e4066Sahrens 687fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 688fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 689fa9e4066Sahrens return (DCMD_ERR); 690fa9e4066Sahrens } 691fa9e4066Sahrens 6925f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 693fa9e4066Sahrens mdb_warn("can't walk dbufs"); 694fa9e4066Sahrens return (DCMD_ERR); 695fa9e4066Sahrens } 696fa9e4066Sahrens 697fa9e4066Sahrens return (DCMD_OK); 698fa9e4066Sahrens } 699fa9e4066Sahrens 700fa9e4066Sahrens typedef struct abuf_find_data { 701fa9e4066Sahrens dva_t dva; 702fa9e4066Sahrens mdb_ctf_id_t id; 703fa9e4066Sahrens } abuf_find_data_t; 704fa9e4066Sahrens 705fa9e4066Sahrens /* ARGSUSED */ 706fa9e4066Sahrens static int 707fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 708fa9e4066Sahrens { 709fa9e4066Sahrens abuf_find_data_t *data = arg; 710fa9e4066Sahrens dva_t dva; 711fa9e4066Sahrens 712fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 713fa9e4066Sahrens return (WALK_ERR); 714fa9e4066Sahrens } 715fa9e4066Sahrens 716fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 717fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 718fa9e4066Sahrens mdb_printf("%#lr\n", addr); 719fa9e4066Sahrens } 720fa9e4066Sahrens return (WALK_NEXT); 721fa9e4066Sahrens } 722fa9e4066Sahrens 723fa9e4066Sahrens /* ARGSUSED */ 724fa9e4066Sahrens static int 725fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 726fa9e4066Sahrens { 727fa9e4066Sahrens abuf_find_data_t data; 728fa9e4066Sahrens GElf_Sym sym; 729fa9e4066Sahrens int i; 730fa9e4066Sahrens const char *syms[] = { 731a2eea2e1Sahrens "ARC_mru", 732a2eea2e1Sahrens "ARC_mru_ghost", 733a2eea2e1Sahrens "ARC_mfu", 734a2eea2e1Sahrens "ARC_mfu_ghost", 735fa9e4066Sahrens }; 736fa9e4066Sahrens 737fa9e4066Sahrens if (argc != 2) 738fa9e4066Sahrens return (DCMD_USAGE); 739fa9e4066Sahrens 740fa9e4066Sahrens for (i = 0; i < 2; i ++) { 741fa9e4066Sahrens switch (argv[i].a_type) { 742fa9e4066Sahrens case MDB_TYPE_STRING: 743fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 744fa9e4066Sahrens break; 745fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 746fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 747fa9e4066Sahrens break; 748fa9e4066Sahrens default: 749fa9e4066Sahrens return (DCMD_USAGE); 750fa9e4066Sahrens } 751fa9e4066Sahrens } 752fa9e4066Sahrens 753fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 754fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 755fa9e4066Sahrens return (DCMD_ERR); 756fa9e4066Sahrens } 757fa9e4066Sahrens 758fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 759fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 760fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 761fa9e4066Sahrens return (DCMD_ERR); 762fa9e4066Sahrens } 763fa9e4066Sahrens 764fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 765fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 766fa9e4066Sahrens return (DCMD_ERR); 767fa9e4066Sahrens } 768fa9e4066Sahrens } 769fa9e4066Sahrens 770fa9e4066Sahrens return (DCMD_OK); 771fa9e4066Sahrens } 772fa9e4066Sahrens 773fa9e4066Sahrens void 774fa9e4066Sahrens abuf_help(void) 775fa9e4066Sahrens { 776fa9e4066Sahrens mdb_printf("::abuf_find dva_word[0] dva_word[1]\n"); 777fa9e4066Sahrens } 778fa9e4066Sahrens 77944cb6abcSbmc /*ARGSUSED*/ 78044cb6abcSbmc static int 78144cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 78244cb6abcSbmc { 78344cb6abcSbmc kstat_named_t *stats; 78444cb6abcSbmc GElf_Sym sym; 78544cb6abcSbmc int nstats, i, j; 78644cb6abcSbmc uint_t opt_a = FALSE; 78744cb6abcSbmc 78844cb6abcSbmc /* 78944cb6abcSbmc * In its default mode, ::arc prints exactly what one would see with 79044cb6abcSbmc * the legacy "arc::print". The legacy[] array tracks the order of 79144cb6abcSbmc * the legacy "arc" structure -- and whether the variable can be found 79244cb6abcSbmc * in a global variable or within the arc_stats (the default). 79344cb6abcSbmc */ 79444cb6abcSbmc struct { 79544cb6abcSbmc const char *name; 79644cb6abcSbmc const char *var; 79744cb6abcSbmc } legacy[] = { 79844cb6abcSbmc { "anon", "arc_anon" }, 79944cb6abcSbmc { "mru", "arc_mru" }, 80044cb6abcSbmc { "mru_ghost", "arc_mru_ghost" }, 80144cb6abcSbmc { "mfu", "arc_mfu" }, 80244cb6abcSbmc { "mfu_ghost", "arc_mfu_ghost" }, 80344cb6abcSbmc { "size" }, 80444cb6abcSbmc { "p" }, 80544cb6abcSbmc { "c" }, 80644cb6abcSbmc { "c_min" }, 80744cb6abcSbmc { "c_max" }, 80844cb6abcSbmc { "hits" }, 80944cb6abcSbmc { "misses" }, 81044cb6abcSbmc { "deleted" }, 81144cb6abcSbmc { "recycle_miss" }, 81244cb6abcSbmc { "mutex_miss" }, 81344cb6abcSbmc { "evict_skip" }, 81444cb6abcSbmc { "hash_elements" }, 81544cb6abcSbmc { "hash_elements_max" }, 81644cb6abcSbmc { "hash_collisions" }, 81744cb6abcSbmc { "hash_chains" }, 81844cb6abcSbmc { "hash_chain_max" }, 81944cb6abcSbmc { "no_grow", "arc_no_grow" }, 82044cb6abcSbmc { NULL } 82144cb6abcSbmc }; 82244cb6abcSbmc 82344cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 82444cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 82544cb6abcSbmc return (DCMD_ERR); 82644cb6abcSbmc } 82744cb6abcSbmc 82844cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 82944cb6abcSbmc 83044cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 83144cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 83244cb6abcSbmc return (DCMD_ERR); 83344cb6abcSbmc } 83444cb6abcSbmc 83544cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 83644cb6abcSbmc 83744cb6abcSbmc if (mdb_getopts(argc, argv, 'a', 83844cb6abcSbmc MDB_OPT_SETBITS, TRUE, &opt_a, NULL) != argc) 83944cb6abcSbmc return (DCMD_USAGE); 84044cb6abcSbmc 84144cb6abcSbmc mdb_printf("{\n"); 84244cb6abcSbmc 84344cb6abcSbmc if (opt_a) { 84444cb6abcSbmc for (i = 0; i < nstats; i++) { 84544cb6abcSbmc mdb_printf(" %s = 0x%llx\n", stats[i].name, 84644cb6abcSbmc stats[i].value.ui64); 84744cb6abcSbmc } 84844cb6abcSbmc 84944cb6abcSbmc mdb_printf("}\n"); 85044cb6abcSbmc return (DCMD_OK); 85144cb6abcSbmc } 85244cb6abcSbmc 85344cb6abcSbmc for (i = 0; legacy[i].name != NULL; i++) { 85444cb6abcSbmc if (legacy[i].var != NULL) { 85544cb6abcSbmc uint64_t buf; 85644cb6abcSbmc 85744cb6abcSbmc if (mdb_lookup_by_name(legacy[i].var, &sym) == -1) { 85844cb6abcSbmc mdb_warn("failed to find '%s'", legacy[i].var); 85944cb6abcSbmc return (DCMD_ERR); 86044cb6abcSbmc } 86144cb6abcSbmc 86244cb6abcSbmc if (sym.st_size != sizeof (uint64_t) && 86344cb6abcSbmc sym.st_size != sizeof (uint32_t)) { 86444cb6abcSbmc mdb_warn("expected scalar for legacy " 86544cb6abcSbmc "variable '%s'\n", legacy[i].var); 86644cb6abcSbmc return (DCMD_ERR); 86744cb6abcSbmc } 86844cb6abcSbmc 86944cb6abcSbmc if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 87044cb6abcSbmc mdb_warn("couldn't read '%s'", legacy[i].var); 87144cb6abcSbmc return (DCMD_ERR); 87244cb6abcSbmc } 87344cb6abcSbmc 87444cb6abcSbmc mdb_printf(" %s = ", legacy[i].name); 87544cb6abcSbmc 87644cb6abcSbmc if (sym.st_size == sizeof (uint64_t)) 87744cb6abcSbmc mdb_printf("%a\n", buf); 87844cb6abcSbmc 87944cb6abcSbmc if (sym.st_size == sizeof (uint32_t)) 88044cb6abcSbmc mdb_printf("%d\n", *((uint32_t *)&buf)); 88144cb6abcSbmc 88244cb6abcSbmc continue; 88344cb6abcSbmc } 88444cb6abcSbmc 88544cb6abcSbmc for (j = 0; j < nstats; j++) { 88644cb6abcSbmc if (strcmp(legacy[i].name, stats[j].name) != 0) 88744cb6abcSbmc continue; 88844cb6abcSbmc 88944cb6abcSbmc mdb_printf(" %s = ", stats[j].name); 89044cb6abcSbmc 89144cb6abcSbmc if (stats[j].value.ui64 == 0) { 89244cb6abcSbmc /* 89344cb6abcSbmc * To remain completely output compatible with 89444cb6abcSbmc * the legacy arc::print, we print 0 not as 89544cb6abcSbmc * "0x0" but rather 0. 89644cb6abcSbmc */ 89744cb6abcSbmc mdb_printf("0\n"); 89844cb6abcSbmc } else { 89944cb6abcSbmc mdb_printf("0x%llx\n", stats[j].value.ui64); 90044cb6abcSbmc } 90144cb6abcSbmc 90244cb6abcSbmc break; 90344cb6abcSbmc } 90444cb6abcSbmc 90544cb6abcSbmc if (j == nstats) { 90644cb6abcSbmc mdb_warn("couldn't find statistic in 'arc_stats' " 90744cb6abcSbmc "for field '%s'\n", legacy[i].name); 90844cb6abcSbmc } 90944cb6abcSbmc } 91044cb6abcSbmc 91144cb6abcSbmc mdb_printf("}\n"); 91244cb6abcSbmc 91344cb6abcSbmc return (DCMD_OK); 91444cb6abcSbmc } 91544cb6abcSbmc 916fa9e4066Sahrens /* 917fa9e4066Sahrens * ::spa 918fa9e4066Sahrens * 919fa9e4066Sahrens * -c Print configuration information as well 920fa9e4066Sahrens * -v Print vdev state 921fa9e4066Sahrens * -e Print vdev error stats 922fa9e4066Sahrens * 923fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 924fa9e4066Sahrens * active pools on the system. 925fa9e4066Sahrens */ 926fa9e4066Sahrens /* ARGSUSED */ 927fa9e4066Sahrens static int 928fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 929fa9e4066Sahrens { 930fa9e4066Sahrens spa_t spa; 931fa9e4066Sahrens char poolname[MAXNAMELEN]; 932fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 933fa9e4066Sahrens "UNINIT", "UNAVAIL" }; 934fa9e4066Sahrens const char *state; 935fa9e4066Sahrens int config = FALSE; 936fa9e4066Sahrens int vdevs = FALSE; 937fa9e4066Sahrens int errors = FALSE; 938fa9e4066Sahrens 939fa9e4066Sahrens if (mdb_getopts(argc, argv, 940fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 941fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 942fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 943fa9e4066Sahrens NULL) != argc) 944fa9e4066Sahrens return (DCMD_USAGE); 945fa9e4066Sahrens 946fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 947fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 948fa9e4066Sahrens mdb_warn("can't walk spa"); 949fa9e4066Sahrens return (DCMD_ERR); 950fa9e4066Sahrens } 951fa9e4066Sahrens 952fa9e4066Sahrens return (DCMD_OK); 953fa9e4066Sahrens } 954fa9e4066Sahrens 955fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 956fa9e4066Sahrens mdb_printf("%#lr\n", addr); 957fa9e4066Sahrens return (DCMD_OK); 958fa9e4066Sahrens } 959fa9e4066Sahrens 960fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 961fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 962fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 963fa9e4066Sahrens 964fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 965fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 966fa9e4066Sahrens return (DCMD_ERR); 967fa9e4066Sahrens } 968fa9e4066Sahrens 969fa9e4066Sahrens if (mdb_readstr(poolname, sizeof (poolname), (uintptr_t)spa.spa_name) 970fa9e4066Sahrens == -1) { 971fa9e4066Sahrens mdb_warn("failed to read pool name at %p", spa.spa_name); 972fa9e4066Sahrens return (DCMD_ERR); 973fa9e4066Sahrens } 974fa9e4066Sahrens 975fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 976ea8dc4b6Seschrock state = "UNKNOWN"; 977fa9e4066Sahrens else 978fa9e4066Sahrens state = statetab[spa.spa_state]; 979fa9e4066Sahrens 980fa9e4066Sahrens mdb_printf("%0?p %9s %s\n", addr, state, poolname); 981fa9e4066Sahrens 982fa9e4066Sahrens if (config) { 983fa9e4066Sahrens mdb_printf("\n"); 984fa9e4066Sahrens mdb_inc_indent(4); 985fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 986fa9e4066Sahrens NULL) != DCMD_OK) 987fa9e4066Sahrens return (DCMD_ERR); 988fa9e4066Sahrens mdb_dec_indent(4); 989fa9e4066Sahrens } 990fa9e4066Sahrens 991fa9e4066Sahrens if (vdevs || errors) { 992fa9e4066Sahrens mdb_arg_t v; 993fa9e4066Sahrens 994fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 995fa9e4066Sahrens v.a_un.a_str = "-e"; 996fa9e4066Sahrens 997fa9e4066Sahrens mdb_printf("\n"); 998fa9e4066Sahrens mdb_inc_indent(4); 999fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 1000fa9e4066Sahrens &v) != DCMD_OK) 1001fa9e4066Sahrens return (DCMD_ERR); 1002fa9e4066Sahrens mdb_dec_indent(4); 1003fa9e4066Sahrens } 1004fa9e4066Sahrens 1005fa9e4066Sahrens return (DCMD_OK); 1006fa9e4066Sahrens } 1007fa9e4066Sahrens 1008fa9e4066Sahrens /* 1009fa9e4066Sahrens * ::spa_config 1010fa9e4066Sahrens * 1011fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 1012fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 1013fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 1014fa9e4066Sahrens */ 1015fa9e4066Sahrens /* ARGSUSED */ 1016fa9e4066Sahrens static int 1017fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1018fa9e4066Sahrens { 1019fa9e4066Sahrens spa_t spa; 1020fa9e4066Sahrens 1021fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1022fa9e4066Sahrens return (DCMD_USAGE); 1023fa9e4066Sahrens 1024fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1025fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1026fa9e4066Sahrens return (DCMD_ERR); 1027fa9e4066Sahrens } 1028fa9e4066Sahrens 1029fa9e4066Sahrens if (spa.spa_config == NULL) { 1030fa9e4066Sahrens mdb_printf("(none)\n"); 1031fa9e4066Sahrens return (DCMD_OK); 1032fa9e4066Sahrens } 1033fa9e4066Sahrens 1034fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 1035fa9e4066Sahrens 0, NULL)); 1036fa9e4066Sahrens } 1037fa9e4066Sahrens 1038fa9e4066Sahrens void 1039fa9e4066Sahrens vdev_help(void) 1040fa9e4066Sahrens { 1041614409b5Sahrens mdb_printf("[vdev_t*]::vdev [-er]\n" 1042614409b5Sahrens "\t-> -e display vdev stats\n" 1043fa9e4066Sahrens "\t-> -r recursive (visit all children)\n"); 1044fa9e4066Sahrens } 1045fa9e4066Sahrens 1046fa9e4066Sahrens /* 1047fa9e4066Sahrens * ::vdev 1048fa9e4066Sahrens * 1049fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 1050fa9e4066Sahrens * 1051fa9e4066Sahrens * ADDR STATE AUX DESC 1052fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 1053fa9e4066Sahrens * 1054fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 1055fa9e4066Sahrens * 1056fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 1057fa9e4066Sahrens */ 1058fa9e4066Sahrens static int 1059614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 1060fa9e4066Sahrens int recursive) 1061fa9e4066Sahrens { 1062fa9e4066Sahrens vdev_t vdev; 1063fa9e4066Sahrens char desc[MAXNAMELEN]; 1064fa9e4066Sahrens int c, children; 1065fa9e4066Sahrens uintptr_t *child; 1066fa9e4066Sahrens const char *state, *aux; 1067fa9e4066Sahrens 1068fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 1069fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 1070fa9e4066Sahrens return (DCMD_ERR); 1071fa9e4066Sahrens } 1072fa9e4066Sahrens 1073fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 1074fa9e4066Sahrens mdb_printf("%#lr", addr); 1075fa9e4066Sahrens } else { 1076fa9e4066Sahrens if (vdev.vdev_path != NULL) { 1077fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 1078fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 1079fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 1080fa9e4066Sahrens vdev.vdev_path); 1081fa9e4066Sahrens return (DCMD_ERR); 1082fa9e4066Sahrens } 1083fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 1084fa9e4066Sahrens vdev_ops_t ops; 1085fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 1086fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 1087fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 1088fa9e4066Sahrens vdev.vdev_ops); 1089fa9e4066Sahrens return (DCMD_ERR); 1090fa9e4066Sahrens } 1091fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 1092fa9e4066Sahrens } else { 1093fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 1094fa9e4066Sahrens } 1095fa9e4066Sahrens 1096fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 1097fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 1098fa9e4066Sahrens "ADDR", "STATE", "AUX", 1099fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 1100fa9e4066Sahrens "DESCRIPTION"); 1101fa9e4066Sahrens 1102fa9e4066Sahrens mdb_printf("%0?p ", addr); 1103fa9e4066Sahrens 1104fa9e4066Sahrens switch (vdev.vdev_state) { 1105fa9e4066Sahrens case VDEV_STATE_CLOSED: 1106fa9e4066Sahrens state = "CLOSED"; 1107fa9e4066Sahrens break; 1108fa9e4066Sahrens case VDEV_STATE_OFFLINE: 1109fa9e4066Sahrens state = "OFFLINE"; 1110fa9e4066Sahrens break; 1111fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 1112fa9e4066Sahrens state = "CANT_OPEN"; 1113fa9e4066Sahrens break; 1114fa9e4066Sahrens case VDEV_STATE_DEGRADED: 1115fa9e4066Sahrens state = "DEGRADED"; 1116fa9e4066Sahrens break; 1117fa9e4066Sahrens case VDEV_STATE_HEALTHY: 1118fa9e4066Sahrens state = "HEALTHY"; 1119fa9e4066Sahrens break; 1120*3d7072f8Seschrock case VDEV_STATE_REMOVED: 1121*3d7072f8Seschrock state = "REMOVED"; 1122*3d7072f8Seschrock break; 1123*3d7072f8Seschrock case VDEV_STATE_FAULTED: 1124*3d7072f8Seschrock state = "FAULTED"; 1125*3d7072f8Seschrock break; 1126fa9e4066Sahrens default: 1127fa9e4066Sahrens state = "UNKNOWN"; 1128fa9e4066Sahrens break; 1129fa9e4066Sahrens } 1130fa9e4066Sahrens 1131fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1132fa9e4066Sahrens case VDEV_AUX_NONE: 1133fa9e4066Sahrens aux = "-"; 1134fa9e4066Sahrens break; 1135fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1136fa9e4066Sahrens aux = "OPEN_FAILED"; 1137fa9e4066Sahrens break; 1138fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1139fa9e4066Sahrens aux = "CORRUPT_DATA"; 1140fa9e4066Sahrens break; 1141fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1142fa9e4066Sahrens aux = "NO_REPLICAS"; 1143fa9e4066Sahrens break; 1144fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1145fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1146fa9e4066Sahrens break; 1147fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1148fa9e4066Sahrens aux = "TOO_SMALL"; 1149fa9e4066Sahrens break; 1150fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1151fa9e4066Sahrens aux = "BAD_LABEL"; 1152fa9e4066Sahrens break; 1153fa9e4066Sahrens default: 1154fa9e4066Sahrens aux = "UNKNOWN"; 1155fa9e4066Sahrens break; 1156fa9e4066Sahrens } 1157fa9e4066Sahrens 1158fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1159fa9e4066Sahrens 1160fa9e4066Sahrens if (stats) { 1161fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1162fa9e4066Sahrens int i; 1163fa9e4066Sahrens 1164fa9e4066Sahrens mdb_inc_indent(4); 1165fa9e4066Sahrens mdb_printf("\n"); 1166fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1167fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1168fa9e4066Sahrens "IOCTL"); 1169fa9e4066Sahrens mdb_printf("OPS "); 1170fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1171fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1172fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1173fa9e4066Sahrens mdb_printf("\n"); 1174fa9e4066Sahrens mdb_printf("BYTES "); 1175fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1176fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1177fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1178fa9e4066Sahrens 1179fa9e4066Sahrens 1180fa9e4066Sahrens mdb_printf("\n"); 1181fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1182fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1183fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1184fa9e4066Sahrens vs->vs_checksum_errors); 1185fa9e4066Sahrens mdb_dec_indent(4); 1186fa9e4066Sahrens } 1187fa9e4066Sahrens 1188614409b5Sahrens if (stats) 1189fa9e4066Sahrens mdb_printf("\n"); 1190fa9e4066Sahrens } 1191fa9e4066Sahrens 1192fa9e4066Sahrens children = vdev.vdev_children; 1193fa9e4066Sahrens 1194fa9e4066Sahrens if (children == 0 || !recursive) 1195fa9e4066Sahrens return (DCMD_OK); 1196fa9e4066Sahrens 1197fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1198fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1199fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1200fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1201fa9e4066Sahrens return (DCMD_ERR); 1202fa9e4066Sahrens } 1203fa9e4066Sahrens 1204fa9e4066Sahrens for (c = 0; c < children; c++) { 1205614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1206fa9e4066Sahrens recursive)) 1207fa9e4066Sahrens return (DCMD_ERR); 1208fa9e4066Sahrens } 1209fa9e4066Sahrens 1210fa9e4066Sahrens return (DCMD_OK); 1211fa9e4066Sahrens } 1212fa9e4066Sahrens 1213fa9e4066Sahrens static int 1214fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1215fa9e4066Sahrens { 1216fa9e4066Sahrens int recursive = FALSE; 1217fa9e4066Sahrens int stats = FALSE; 1218fa9e4066Sahrens 1219fa9e4066Sahrens if (mdb_getopts(argc, argv, 1220fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1221fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1222fa9e4066Sahrens NULL) != argc) 1223fa9e4066Sahrens return (DCMD_USAGE); 1224fa9e4066Sahrens 1225fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1226fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1227fa9e4066Sahrens return (DCMD_ERR); 1228fa9e4066Sahrens } 1229fa9e4066Sahrens 1230614409b5Sahrens return (do_print_vdev(addr, flags, 0, stats, recursive)); 1231fa9e4066Sahrens } 1232fa9e4066Sahrens 12335f5f7a6fSahrens typedef struct metaslab_walk_data { 12345f5f7a6fSahrens uint64_t mw_numvdevs; 12355f5f7a6fSahrens uintptr_t *mw_vdevs; 12365f5f7a6fSahrens int mw_curvdev; 12375f5f7a6fSahrens uint64_t mw_nummss; 12385f5f7a6fSahrens uintptr_t *mw_mss; 12395f5f7a6fSahrens int mw_curms; 12405f5f7a6fSahrens } metaslab_walk_data_t; 12415f5f7a6fSahrens 12425f5f7a6fSahrens static int 12435f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 12445f5f7a6fSahrens { 12455f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 12465f5f7a6fSahrens metaslab_t ms; 12475f5f7a6fSahrens uintptr_t msp; 12485f5f7a6fSahrens 12495f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 12505f5f7a6fSahrens return (WALK_DONE); 12515f5f7a6fSahrens 12525f5f7a6fSahrens if (mw->mw_mss == NULL) { 12535f5f7a6fSahrens uintptr_t mssp; 12545f5f7a6fSahrens uintptr_t vdevp; 12555f5f7a6fSahrens 12565f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 12575f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 12585f5f7a6fSahrens 12595f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 12605f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 12615f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 12625f5f7a6fSahrens return (WALK_ERR); 12635f5f7a6fSahrens } 12645f5f7a6fSahrens 12655f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 12665f5f7a6fSahrens UM_SLEEP | UM_GC); 12675f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 12685f5f7a6fSahrens mssp) == -1) { 12695f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 12705f5f7a6fSahrens return (WALK_ERR); 12715f5f7a6fSahrens } 12725f5f7a6fSahrens } 12735f5f7a6fSahrens 12745f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 12755f5f7a6fSahrens mw->mw_mss = NULL; 12765f5f7a6fSahrens mw->mw_curms = 0; 12775f5f7a6fSahrens mw->mw_nummss = 0; 12785f5f7a6fSahrens mw->mw_curvdev++; 12795f5f7a6fSahrens return (WALK_NEXT); 12805f5f7a6fSahrens } 12815f5f7a6fSahrens 12825f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 12835f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 12845f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 12855f5f7a6fSahrens return (WALK_ERR); 12865f5f7a6fSahrens } 12875f5f7a6fSahrens 12885f5f7a6fSahrens mw->mw_curms++; 12895f5f7a6fSahrens 12905f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 12915f5f7a6fSahrens } 12925f5f7a6fSahrens 12935f5f7a6fSahrens /* ARGSUSED */ 12945f5f7a6fSahrens static int 12955f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 12965f5f7a6fSahrens { 12975f5f7a6fSahrens metaslab_walk_data_t *mw; 12985f5f7a6fSahrens uintptr_t root_vdevp; 12995f5f7a6fSahrens uintptr_t childp; 13005f5f7a6fSahrens 13015f5f7a6fSahrens if (wsp->walk_addr == NULL) { 13025f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 13035f5f7a6fSahrens return (WALK_ERR); 13045f5f7a6fSahrens } 13055f5f7a6fSahrens 13065f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 13075f5f7a6fSahrens 13085f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 13095f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 13105f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 13115f5f7a6fSahrens return (DCMD_ERR); 13125f5f7a6fSahrens } 13135f5f7a6fSahrens 13145f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 13155f5f7a6fSahrens UM_SLEEP | UM_GC); 13165f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 13175f5f7a6fSahrens childp) == -1) { 13185f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 13195f5f7a6fSahrens return (DCMD_ERR); 13205f5f7a6fSahrens } 13215f5f7a6fSahrens 13225f5f7a6fSahrens wsp->walk_data = mw; 13235f5f7a6fSahrens 13245f5f7a6fSahrens return (WALK_NEXT); 13255f5f7a6fSahrens } 13265f5f7a6fSahrens 1327fa9e4066Sahrens typedef struct mdb_spa { 1328fa9e4066Sahrens uintptr_t spa_dsl_pool; 1329fa9e4066Sahrens uintptr_t spa_root_vdev; 1330fa9e4066Sahrens } mdb_spa_t; 1331fa9e4066Sahrens 1332fa9e4066Sahrens typedef struct mdb_dsl_dir { 1333fa9e4066Sahrens uintptr_t dd_phys; 1334fa9e4066Sahrens uint64_t dd_used_bytes; 1335fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1336fa9e4066Sahrens } mdb_dsl_dir_t; 1337fa9e4066Sahrens 1338fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1339fa9e4066Sahrens uint64_t dd_used_bytes; 1340fa9e4066Sahrens uint64_t dd_compressed_bytes; 1341fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1342fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1343fa9e4066Sahrens 1344fa9e4066Sahrens typedef struct mdb_vdev { 1345fa9e4066Sahrens uintptr_t vdev_parent; 1346fa9e4066Sahrens uintptr_t vdev_ms; 1347fa9e4066Sahrens uint64_t vdev_ms_count; 1348fa9e4066Sahrens vdev_stat_t vdev_stat; 1349fa9e4066Sahrens } mdb_vdev_t; 1350fa9e4066Sahrens 1351fa9e4066Sahrens typedef struct mdb_metaslab { 1352fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1353fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1354fa9e4066Sahrens space_map_t ms_map; 1355ecc2d604Sbonwick space_map_obj_t ms_smo; 13565f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1357fa9e4066Sahrens } mdb_metaslab_t; 1358fa9e4066Sahrens 13595f5f7a6fSahrens typedef struct space_data { 13605f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 13615f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 13625f5f7a6fSahrens uint64_t ms_map; 13635f5f7a6fSahrens uint64_t avail; 13645f5f7a6fSahrens uint64_t nowavail; 13655f5f7a6fSahrens } space_data_t; 13665f5f7a6fSahrens 13675f5f7a6fSahrens /* ARGSUSED */ 13685f5f7a6fSahrens static int 13695f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 13705f5f7a6fSahrens { 13715f5f7a6fSahrens space_data_t *sd = arg; 13725f5f7a6fSahrens mdb_metaslab_t ms; 13735f5f7a6fSahrens 13745f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 13755f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 13765f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 13775f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 13785f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 13795f5f7a6fSahrens return (WALK_ERR); 13805f5f7a6fSahrens } 13815f5f7a6fSahrens 13825f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 13835f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 13845f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 13855f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 13865f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 13875f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 13885f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 13895f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 13905f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 13915f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 13925f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 13935f5f7a6fSahrens 13945f5f7a6fSahrens return (WALK_NEXT); 13955f5f7a6fSahrens } 13965f5f7a6fSahrens 1397fa9e4066Sahrens /* 1398fa9e4066Sahrens * ::spa_space [-b] 1399fa9e4066Sahrens * 1400fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1401fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1402fa9e4066Sahrens * Otherwise print in megabytes. 1403fa9e4066Sahrens */ 1404fa9e4066Sahrens /* ARGSUSED */ 1405fa9e4066Sahrens static int 1406fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1407fa9e4066Sahrens { 1408fa9e4066Sahrens mdb_spa_t spa; 1409fa9e4066Sahrens uintptr_t dp_root_dir; 1410fa9e4066Sahrens mdb_dsl_dir_t dd; 1411fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1412fa9e4066Sahrens uint64_t children; 1413fa9e4066Sahrens uintptr_t childaddr; 14145f5f7a6fSahrens space_data_t sd; 1415fa9e4066Sahrens int shift = 20; 1416fa9e4066Sahrens char *suffix = "M"; 1417fa9e4066Sahrens int bits = FALSE; 1418fa9e4066Sahrens 1419fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1420fa9e4066Sahrens argc) 1421fa9e4066Sahrens return (DCMD_USAGE); 1422fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1423fa9e4066Sahrens return (DCMD_USAGE); 1424fa9e4066Sahrens 1425fa9e4066Sahrens if (bits) { 1426fa9e4066Sahrens shift = 0; 1427fa9e4066Sahrens suffix = ""; 1428fa9e4066Sahrens } 1429fa9e4066Sahrens 1430fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1431fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1432fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1433fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1434fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1435fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1436fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1437fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1438fa9e4066Sahrens dd_used_bytes, dd.dd_used_bytes) || 1439fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1440fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1441fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 14425f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 14435f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1444fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1445fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1446fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1447fa9e4066Sahrens return (DCMD_ERR); 1448fa9e4066Sahrens } 1449fa9e4066Sahrens 1450fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1451fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1452fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1453fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1454fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1455fa9e4066Sahrens mdb_printf("dd_used_bytes = %llu%s\n", 1456fa9e4066Sahrens dd.dd_used_bytes >> shift, suffix); 1457fa9e4066Sahrens 1458fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1459fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 1460fa9e4066Sahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 1461fa9e4066Sahrens dsp.dd_compressed_bytes >> shift, suffix); 1462fa9e4066Sahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 1463fa9e4066Sahrens dsp.dd_uncompressed_bytes >> shift, suffix); 1464fa9e4066Sahrens 14655f5f7a6fSahrens bzero(&sd, sizeof (sd)); 14665f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 14675f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 1468fa9e4066Sahrens return (DCMD_ERR); 1469fa9e4066Sahrens } 1470fa9e4066Sahrens 1471fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 14725f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 14735f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 14745f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 14755f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1476fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 14775f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 14785f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 14795f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 14805f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 14815f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 14825f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 14835f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 14845f5f7a6fSahrens sd.nowavail >> shift, suffix); 1485fa9e4066Sahrens 1486fa9e4066Sahrens return (DCMD_OK); 1487fa9e4066Sahrens } 1488fa9e4066Sahrens 1489fa9e4066Sahrens /* 1490fa9e4066Sahrens * ::spa_verify 1491fa9e4066Sahrens * 1492fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1493fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1494fa9e4066Sahrens */ 1495fa9e4066Sahrens /* ARGSUSED */ 1496fa9e4066Sahrens static int 1497fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1498fa9e4066Sahrens { 1499fa9e4066Sahrens spa_t spa; 1500fa9e4066Sahrens 1501fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1502fa9e4066Sahrens return (DCMD_USAGE); 1503fa9e4066Sahrens 1504fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1505fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1506fa9e4066Sahrens return (DCMD_ERR); 1507fa9e4066Sahrens } 1508fa9e4066Sahrens 1509fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1510fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1511fa9e4066Sahrens return (DCMD_OK); 1512fa9e4066Sahrens } 1513fa9e4066Sahrens 1514fa9e4066Sahrens return (DCMD_OK); 1515fa9e4066Sahrens } 1516fa9e4066Sahrens 1517fa9e4066Sahrens /* 1518fa9e4066Sahrens * ::spa_vdevs 1519fa9e4066Sahrens * 1520fa9e4066Sahrens * -e Include error stats 1521fa9e4066Sahrens * 1522fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1523fa9e4066Sahrens * This is accomplished by invoking "::vdev -re" on the root vdev. 1524fa9e4066Sahrens */ 1525fa9e4066Sahrens /* ARGSUSED */ 1526fa9e4066Sahrens static int 1527fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1528fa9e4066Sahrens { 1529fa9e4066Sahrens spa_t spa; 1530fa9e4066Sahrens mdb_arg_t v; 1531fa9e4066Sahrens int errors = FALSE; 1532fa9e4066Sahrens 1533fa9e4066Sahrens if (mdb_getopts(argc, argv, 1534fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1535fa9e4066Sahrens NULL) != argc) 1536fa9e4066Sahrens return (DCMD_USAGE); 1537fa9e4066Sahrens 1538fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1539fa9e4066Sahrens return (DCMD_USAGE); 1540fa9e4066Sahrens 1541fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1542fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1543fa9e4066Sahrens return (DCMD_ERR); 1544fa9e4066Sahrens } 1545fa9e4066Sahrens 1546088e9d47Seschrock /* 1547088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1548088e9d47Seschrock */ 1549088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1550088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1551088e9d47Seschrock return (DCMD_OK); 1552088e9d47Seschrock } 1553088e9d47Seschrock 1554fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 1555fa9e4066Sahrens v.a_un.a_str = errors ? "-re" : "-r"; 1556fa9e4066Sahrens 1557fa9e4066Sahrens return (mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1558fa9e4066Sahrens flags, 1, &v)); 1559fa9e4066Sahrens } 1560fa9e4066Sahrens 1561ccae0b50Seschrock /* 1562ccae0b50Seschrock * ::zio 1563ccae0b50Seschrock * 1564ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1565ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1566ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1567ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1568ccae0b50Seschrock * 1569ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1570ccae0b50Seschrock * 1571ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1572ccae0b50Seschrock * descend down the tree. 1573ccae0b50Seschrock */ 1574fac3008cSeschrock 1575fac3008cSeschrock #define ZIO_MAXDEPTH 16 1576fac3008cSeschrock 1577ccae0b50Seschrock static int 1578ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1579ccae0b50Seschrock { 1580ccae0b50Seschrock const zio_t *zio = data; 1581ccae0b50Seschrock uintptr_t depth = (uintptr_t)priv; 1582ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1583ccae0b50Seschrock const char *type, *stage; 1584ccae0b50Seschrock int maxdepth; 1585ccae0b50Seschrock 1586fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1587fac3008cSeschrock if (depth > ZIO_MAXDEPTH) 1588fac3008cSeschrock depth = ZIO_MAXDEPTH; 1589ccae0b50Seschrock 1590ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1591ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1592ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1593ccae0b50Seschrock return (WALK_ERR); 1594ccae0b50Seschrock } 1595ccae0b50Seschrock 1596ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1597ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1598ccae0b50Seschrock else 1599ccae0b50Seschrock type = "?"; 1600ccae0b50Seschrock 1601ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1602ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1603ccae0b50Seschrock else 1604ccae0b50Seschrock stage = "?"; 1605ccae0b50Seschrock 1606ccae0b50Seschrock 1607ccae0b50Seschrock mdb_printf("%*s%-*p %-5s %-22s ", 1608ccae0b50Seschrock depth, "", maxdepth - depth, addr, type, stage); 1609ccae0b50Seschrock if (zio->io_waiter) 1610ccae0b50Seschrock mdb_printf("%?p\n", zio->io_waiter); 1611ccae0b50Seschrock else 1612ccae0b50Seschrock mdb_printf("-\n"); 1613ccae0b50Seschrock 1614ccae0b50Seschrock if (mdb_pwalk("zio_child", zio_print_cb, (void *)(depth + 1), 1615ccae0b50Seschrock addr) != 0) { 1616ccae0b50Seschrock mdb_warn("failed to walk zio_t children at %p\n", addr); 1617ccae0b50Seschrock return (WALK_ERR); 1618ccae0b50Seschrock } 1619ccae0b50Seschrock 1620ccae0b50Seschrock return (WALK_NEXT); 1621ccae0b50Seschrock } 1622ccae0b50Seschrock 1623ccae0b50Seschrock /*ARGSUSED*/ 1624ccae0b50Seschrock static int 1625ccae0b50Seschrock zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1626ccae0b50Seschrock { 1627ccae0b50Seschrock zio_t zio; 1628fac3008cSeschrock int maxdepth; 1629fac3008cSeschrock 1630fac3008cSeschrock maxdepth = sizeof (uintptr_t) * 2 + ZIO_MAXDEPTH; 1631ccae0b50Seschrock 1632ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1633ccae0b50Seschrock return (DCMD_USAGE); 1634ccae0b50Seschrock 1635ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1636ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1637ccae0b50Seschrock return (DCMD_ERR); 1638ccae0b50Seschrock } 1639ccae0b50Seschrock 1640fac3008cSeschrock if (DCMD_HDRSPEC(flags)) 1641fac3008cSeschrock mdb_printf("%<u>%-*s %-5s %-22s %-?s%</u>\n", maxdepth, 1642fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1643fac3008cSeschrock 1644ccae0b50Seschrock if (zio_print_cb(addr, &zio, NULL) != WALK_NEXT) 1645ccae0b50Seschrock return (DCMD_ERR); 1646ccae0b50Seschrock 1647ccae0b50Seschrock return (DCMD_OK); 1648ccae0b50Seschrock } 1649ccae0b50Seschrock 1650ccae0b50Seschrock /* 1651ccae0b50Seschrock * [addr]::zio_state 1652ccae0b50Seschrock * 1653ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1654ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1655ccae0b50Seschrock */ 1656ccae0b50Seschrock /*ARGSUSED*/ 1657ccae0b50Seschrock static int 1658ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1659ccae0b50Seschrock { 1660ccae0b50Seschrock /* 1661ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1662ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1663ccae0b50Seschrock * non-existent spa_t. 1664ccae0b50Seschrock */ 1665ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1666ccae0b50Seschrock addr = 0; 1667ccae0b50Seschrock 1668ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1669ccae0b50Seschrock } 1670ccae0b50Seschrock 1671fa9e4066Sahrens typedef struct txg_list_walk_data { 1672fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1673fa9e4066Sahrens int lw_txgoff; 1674fa9e4066Sahrens int lw_maxoff; 1675fa9e4066Sahrens size_t lw_offset; 1676fa9e4066Sahrens void *lw_obj; 1677fa9e4066Sahrens } txg_list_walk_data_t; 1678fa9e4066Sahrens 1679fa9e4066Sahrens static int 1680fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1681fa9e4066Sahrens { 1682fa9e4066Sahrens txg_list_walk_data_t *lwd; 1683fa9e4066Sahrens txg_list_t list; 1684fa9e4066Sahrens int i; 1685fa9e4066Sahrens 1686fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1687fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1688fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1689fa9e4066Sahrens return (WALK_ERR); 1690fa9e4066Sahrens } 1691fa9e4066Sahrens 1692fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1693fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1694fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1695fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1696fa9e4066Sahrens UM_SLEEP | UM_GC); 1697fa9e4066Sahrens lwd->lw_txgoff = txg; 1698fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1699fa9e4066Sahrens 1700fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1701fa9e4066Sahrens wsp->walk_data = lwd; 1702fa9e4066Sahrens 1703fa9e4066Sahrens return (WALK_NEXT); 1704fa9e4066Sahrens } 1705fa9e4066Sahrens 1706fa9e4066Sahrens static int 1707fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1708fa9e4066Sahrens { 1709fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1710fa9e4066Sahrens } 1711fa9e4066Sahrens 1712fa9e4066Sahrens static int 1713fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1714fa9e4066Sahrens { 1715fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1716fa9e4066Sahrens } 1717fa9e4066Sahrens 1718fa9e4066Sahrens static int 1719fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1720fa9e4066Sahrens { 1721fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1722fa9e4066Sahrens } 1723fa9e4066Sahrens 1724fa9e4066Sahrens static int 1725fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1726fa9e4066Sahrens { 1727fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1728fa9e4066Sahrens } 1729fa9e4066Sahrens 1730fa9e4066Sahrens static int 1731fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1732fa9e4066Sahrens { 1733fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1734fa9e4066Sahrens } 1735fa9e4066Sahrens 1736fa9e4066Sahrens static int 1737fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1738fa9e4066Sahrens { 1739fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1740fa9e4066Sahrens uintptr_t addr; 1741fa9e4066Sahrens txg_node_t *node; 1742fa9e4066Sahrens int status; 1743fa9e4066Sahrens 1744fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1745fa9e4066Sahrens lwd->lw_txgoff++; 1746fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1747fa9e4066Sahrens } 1748fa9e4066Sahrens 1749fa9e4066Sahrens if (wsp->walk_addr == NULL) 1750fa9e4066Sahrens return (WALK_DONE); 1751fa9e4066Sahrens 1752fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1753fa9e4066Sahrens 1754fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1755fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1756fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1757fa9e4066Sahrens return (WALK_ERR); 1758fa9e4066Sahrens } 1759fa9e4066Sahrens 1760fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1761fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1762fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1763fa9e4066Sahrens 1764fa9e4066Sahrens return (status); 1765fa9e4066Sahrens } 1766fa9e4066Sahrens 1767fa9e4066Sahrens /* 1768fa9e4066Sahrens * ::walk spa 1769fa9e4066Sahrens * 1770fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1771fa9e4066Sahrens * a layered avl walk. 1772fa9e4066Sahrens */ 1773fa9e4066Sahrens static int 1774fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1775fa9e4066Sahrens { 1776fa9e4066Sahrens GElf_Sym sym; 1777fa9e4066Sahrens 1778fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1779fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1780fa9e4066Sahrens return (WALK_ERR); 1781fa9e4066Sahrens } 1782fa9e4066Sahrens 1783fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1784fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1785fa9e4066Sahrens return (WALK_ERR); 1786fa9e4066Sahrens } 1787fa9e4066Sahrens 1788fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1789fa9e4066Sahrens 1790fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1791fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1792fa9e4066Sahrens return (WALK_ERR); 1793fa9e4066Sahrens } 1794fa9e4066Sahrens 1795fa9e4066Sahrens return (WALK_NEXT); 1796fa9e4066Sahrens } 1797fa9e4066Sahrens 1798fa9e4066Sahrens static int 1799fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1800fa9e4066Sahrens { 1801fa9e4066Sahrens spa_t spa; 1802fa9e4066Sahrens 1803fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1804fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1805fa9e4066Sahrens return (WALK_ERR); 1806fa9e4066Sahrens } 1807fa9e4066Sahrens 1808fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1809fa9e4066Sahrens } 1810fa9e4066Sahrens 1811fa9e4066Sahrens /* 1812ccae0b50Seschrock * [addr]::walk zio 1813ccae0b50Seschrock * 1814ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1815ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1816ccae0b50Seschrock * structures to a particular pool. 1817ccae0b50Seschrock */ 1818ccae0b50Seschrock static int 1819ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1820ccae0b50Seschrock { 1821ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1822ccae0b50Seschrock 1823ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1824ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1825ccae0b50Seschrock return (WALK_ERR); 1826ccae0b50Seschrock } 1827ccae0b50Seschrock 1828ccae0b50Seschrock return (WALK_NEXT); 1829ccae0b50Seschrock } 1830ccae0b50Seschrock 1831ccae0b50Seschrock static int 1832ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1833ccae0b50Seschrock { 1834ccae0b50Seschrock zio_t zio; 1835ccae0b50Seschrock 1836ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1837ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1838ccae0b50Seschrock return (WALK_ERR); 1839ccae0b50Seschrock } 1840ccae0b50Seschrock 1841ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1842ccae0b50Seschrock return (WALK_NEXT); 1843ccae0b50Seschrock 1844ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1845ccae0b50Seschrock } 1846ccae0b50Seschrock 1847ccae0b50Seschrock /* 1848ccae0b50Seschrock * ::walk zio_child 1849ccae0b50Seschrock * 1850ccae0b50Seschrock * Walk the children of a zio_t structure. 1851ccae0b50Seschrock */ 1852ccae0b50Seschrock static int 1853ccae0b50Seschrock zio_child_walk_init(mdb_walk_state_t *wsp) 1854ccae0b50Seschrock { 1855ccae0b50Seschrock zio_t zio; 1856ccae0b50Seschrock 1857ccae0b50Seschrock if (wsp->walk_addr == 0) { 1858ccae0b50Seschrock mdb_warn("::walk zio_child doesn't support global walks\n"); 1859ccae0b50Seschrock return (WALK_ERR); 1860ccae0b50Seschrock } 1861ccae0b50Seschrock 1862ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1863ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1864ccae0b50Seschrock return (WALK_ERR); 1865ccae0b50Seschrock } 1866ccae0b50Seschrock 1867ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_child; 1868ccae0b50Seschrock return (WALK_NEXT); 1869ccae0b50Seschrock } 1870ccae0b50Seschrock 1871ccae0b50Seschrock static int 1872ccae0b50Seschrock zio_sibling_walk_step(mdb_walk_state_t *wsp) 1873ccae0b50Seschrock { 1874ccae0b50Seschrock zio_t zio; 1875ccae0b50Seschrock int status; 1876ccae0b50Seschrock 1877ccae0b50Seschrock if (wsp->walk_addr == NULL) 1878ccae0b50Seschrock return (WALK_DONE); 1879ccae0b50Seschrock 1880ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1881ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1882ccae0b50Seschrock return (WALK_ERR); 1883ccae0b50Seschrock } 1884ccae0b50Seschrock 1885ccae0b50Seschrock status = wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata); 1886ccae0b50Seschrock 1887ccae0b50Seschrock wsp->walk_addr = (uintptr_t)zio.io_sibling_next; 1888ccae0b50Seschrock return (status); 1889ccae0b50Seschrock } 1890ccae0b50Seschrock 1891ccae0b50Seschrock /* 1892ccae0b50Seschrock * [addr]::walk zio_root 1893ccae0b50Seschrock * 1894ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1895ccae0b50Seschrock */ 1896ccae0b50Seschrock static int 1897ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1898ccae0b50Seschrock { 1899ccae0b50Seschrock zio_t zio; 1900ccae0b50Seschrock 1901ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1902ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1903ccae0b50Seschrock return (WALK_ERR); 1904ccae0b50Seschrock } 1905ccae0b50Seschrock 1906ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1907ccae0b50Seschrock return (WALK_NEXT); 1908ccae0b50Seschrock 1909ccae0b50Seschrock if ((uintptr_t)zio.io_root != wsp->walk_addr) 1910ccae0b50Seschrock return (WALK_NEXT); 1911ccae0b50Seschrock 1912ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1913ccae0b50Seschrock } 1914ccae0b50Seschrock 1915ccae0b50Seschrock /* 1916fa9e4066Sahrens * MDB module linkage information: 1917fa9e4066Sahrens * 1918fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 1919fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 1920fa9e4066Sahrens */ 1921fa9e4066Sahrens 1922fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 192344cb6abcSbmc { "arc", "[-a]", "print ARC variables", arc_print }, 1924fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 1925fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 1926fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 1927fa9e4066Sahrens { "dbufs", 1928fa9e4066Sahrens "\t[-O objset_t*] [-n objset_name | \"mos\"] [-o object | \"mdn\"] \n" 1929fa9e4066Sahrens "\t[-l level] [-b blkid | \"bonus\"]", 1930fa9e4066Sahrens "find dmu_buf_impl_t's that meet criterion", dbufs }, 1931fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 1932fa9e4066Sahrens "find arc_buf_hdr_t of a specified DVA", 1933fa9e4066Sahrens abuf_find }, 1934fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 1935fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 1936fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 1937fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 1938fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 1939614409b5Sahrens { "vdev", ":[-re]", "vdev_t summary", vdev_print }, 1940ccae0b50Seschrock { "zio", ":", "zio_t summary", zio_print }, 1941ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 1942ccae0b50Seschrock "for a particular pool", zio_state }, 1943fa9e4066Sahrens { "zio_pipeline", ":", "decode a zio pipeline", zio_pipeline }, 1944614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 1945fa9e4066Sahrens { NULL } 1946fa9e4066Sahrens }; 1947fa9e4066Sahrens 1948fa9e4066Sahrens static const mdb_walker_t walkers[] = { 1949fa9e4066Sahrens /* 1950fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 1951fa9e4066Sahrens * need to add it. 1952fa9e4066Sahrens */ 1953fa9e4066Sahrens #ifndef _KERNEL 1954fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 1955fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 1956fa9e4066Sahrens #endif 1957fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 19585f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 1959fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 19605f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 1961fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 19625f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 1963fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 19645f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 1965fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 19665f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 1967fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 19685f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 1969ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 1970ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 1971ccae0b50Seschrock { "zio_child", "walk children of a zio_t structure", 1972ccae0b50Seschrock zio_child_walk_init, zio_sibling_walk_step, NULL }, 1973ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 1974ccae0b50Seschrock "particular spa_t", 1975ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 1976fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 1977fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 19785f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 19795f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 1980fa9e4066Sahrens { NULL } 1981fa9e4066Sahrens }; 1982fa9e4066Sahrens 1983fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 1984fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 1985fa9e4066Sahrens }; 1986fa9e4066Sahrens 1987fa9e4066Sahrens const mdb_modinfo_t * 1988fa9e4066Sahrens _mdb_init(void) 1989fa9e4066Sahrens { 1990fa9e4066Sahrens return (&modinfo); 1991fa9e4066Sahrens } 1992