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 /* 22a3f829aeSBill Moore * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23fa9e4066Sahrens * Use is subject to license terms. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #include <mdb/mdb_ctf.h> 27fa9e4066Sahrens #include <sys/zfs_context.h> 28fa9e4066Sahrens #include <sys/mdb_modapi.h> 29fa9e4066Sahrens #include <sys/dbuf.h> 30fa9e4066Sahrens #include <sys/dmu_objset.h> 31fa9e4066Sahrens #include <sys/dsl_dir.h> 32fa9e4066Sahrens #include <sys/dsl_pool.h> 33fa9e4066Sahrens #include <sys/metaslab_impl.h> 34fa9e4066Sahrens #include <sys/space_map.h> 35fa9e4066Sahrens #include <sys/list.h> 36fa9e4066Sahrens #include <sys/spa_impl.h> 37fa9e4066Sahrens #include <sys/vdev_impl.h> 389966ca11SMatthew Ahrens #include <ctype.h> 39fa9e4066Sahrens 40fa9e4066Sahrens #ifndef _KERNEL 41fa9e4066Sahrens #include "../genunix/list.h" 42fa9e4066Sahrens #endif 43fa9e4066Sahrens 44fa9e4066Sahrens #ifdef _KERNEL 45fa9e4066Sahrens #define ZFS_OBJ_NAME "zfs" 46fa9e4066Sahrens #else 47fa9e4066Sahrens #define ZFS_OBJ_NAME "libzpool.so.1" 48fa9e4066Sahrens #endif 49fa9e4066Sahrens 50fa9e4066Sahrens static int 51fa9e4066Sahrens getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp, 52fa9e4066Sahrens const char *member, int len, void *buf) 53fa9e4066Sahrens { 54fa9e4066Sahrens mdb_ctf_id_t id; 55fa9e4066Sahrens ulong_t off; 56fa9e4066Sahrens char name[64]; 57fa9e4066Sahrens 58fa9e4066Sahrens if (idp == NULL) { 59fa9e4066Sahrens if (mdb_ctf_lookup_by_name(type, &id) == -1) { 60fa9e4066Sahrens mdb_warn("couldn't find type %s", type); 61fa9e4066Sahrens return (DCMD_ERR); 62fa9e4066Sahrens } 63fa9e4066Sahrens idp = &id; 64fa9e4066Sahrens } else { 65fa9e4066Sahrens type = name; 66fa9e4066Sahrens mdb_ctf_type_name(*idp, name, sizeof (name)); 67fa9e4066Sahrens } 68fa9e4066Sahrens 69fa9e4066Sahrens if (mdb_ctf_offsetof(*idp, member, &off) == -1) { 70fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, type); 71fa9e4066Sahrens return (DCMD_ERR); 72fa9e4066Sahrens } 73fa9e4066Sahrens if (off % 8 != 0) { 74fa9e4066Sahrens mdb_warn("member %s of type %s is unsupported bitfield", 75fa9e4066Sahrens member, type); 76fa9e4066Sahrens return (DCMD_ERR); 77fa9e4066Sahrens } 78fa9e4066Sahrens off /= 8; 79fa9e4066Sahrens 80fa9e4066Sahrens if (mdb_vread(buf, len, addr + off) == -1) { 81fa9e4066Sahrens mdb_warn("failed to read %s from %s at %p", 82fa9e4066Sahrens member, type, addr + off); 83fa9e4066Sahrens return (DCMD_ERR); 84fa9e4066Sahrens } 85fa9e4066Sahrens /* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */ 86fa9e4066Sahrens 87fa9e4066Sahrens return (0); 88fa9e4066Sahrens } 89fa9e4066Sahrens 90fa9e4066Sahrens #define GETMEMB(addr, type, member, dest) \ 91fa9e4066Sahrens getmember(addr, #type, NULL, #member, sizeof (dest), &(dest)) 92fa9e4066Sahrens 93fa9e4066Sahrens #define GETMEMBID(addr, ctfid, member, dest) \ 94fa9e4066Sahrens getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest)) 95fa9e4066Sahrens 96fa9e4066Sahrens static int 97fa9e4066Sahrens getrefcount(uintptr_t addr, mdb_ctf_id_t *id, 98fa9e4066Sahrens const char *member, uint64_t *rc) 99fa9e4066Sahrens { 100fa9e4066Sahrens static int gotid; 101fa9e4066Sahrens static mdb_ctf_id_t rc_id; 102fa9e4066Sahrens ulong_t off; 103fa9e4066Sahrens 104fa9e4066Sahrens if (!gotid) { 105fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 106fa9e4066Sahrens mdb_warn("couldn't find struct refcount"); 107fa9e4066Sahrens return (DCMD_ERR); 108fa9e4066Sahrens } 109fa9e4066Sahrens gotid = TRUE; 110fa9e4066Sahrens } 111fa9e4066Sahrens 112fa9e4066Sahrens if (mdb_ctf_offsetof(*id, member, &off) == -1) { 113fa9e4066Sahrens char name[64]; 114fa9e4066Sahrens mdb_ctf_type_name(*id, name, sizeof (name)); 115fa9e4066Sahrens mdb_warn("couldn't find member %s of type %s\n", member, name); 116fa9e4066Sahrens return (DCMD_ERR); 117fa9e4066Sahrens } 118fa9e4066Sahrens off /= 8; 119fa9e4066Sahrens 120fa9e4066Sahrens return (GETMEMBID(addr + off, &rc_id, rc_count, *rc)); 121fa9e4066Sahrens } 122fa9e4066Sahrens 123fa9e4066Sahrens static int verbose; 124fa9e4066Sahrens 125fa9e4066Sahrens static int 126fa9e4066Sahrens freelist_walk_init(mdb_walk_state_t *wsp) 127fa9e4066Sahrens { 128fa9e4066Sahrens if (wsp->walk_addr == NULL) { 129fa9e4066Sahrens mdb_warn("must supply starting address\n"); 130fa9e4066Sahrens return (WALK_ERR); 131fa9e4066Sahrens } 132fa9e4066Sahrens 133fa9e4066Sahrens wsp->walk_data = 0; /* Index into the freelist */ 134fa9e4066Sahrens return (WALK_NEXT); 135fa9e4066Sahrens } 136fa9e4066Sahrens 137fa9e4066Sahrens static int 138fa9e4066Sahrens freelist_walk_step(mdb_walk_state_t *wsp) 139fa9e4066Sahrens { 140fa9e4066Sahrens uint64_t entry; 141fa9e4066Sahrens uintptr_t number = (uintptr_t)wsp->walk_data; 1428053a263Sck char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID", 1438053a263Sck "INVALID", "INVALID", "INVALID", "INVALID" }; 144fa9e4066Sahrens int mapshift = SPA_MINBLOCKSHIFT; 145fa9e4066Sahrens 146fa9e4066Sahrens if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) { 147fa9e4066Sahrens mdb_warn("failed to read freelist entry %p", wsp->walk_addr); 148fa9e4066Sahrens return (WALK_DONE); 149fa9e4066Sahrens } 150fa9e4066Sahrens wsp->walk_addr += sizeof (entry); 151fa9e4066Sahrens wsp->walk_data = (void *)(number + 1); 152fa9e4066Sahrens 153fa9e4066Sahrens if (SM_DEBUG_DECODE(entry)) { 154fa9e4066Sahrens mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n", 155fa9e4066Sahrens number, 156fa9e4066Sahrens ddata[SM_DEBUG_ACTION_DECODE(entry)], 157fa9e4066Sahrens SM_DEBUG_TXG_DECODE(entry), 158fa9e4066Sahrens SM_DEBUG_SYNCPASS_DECODE(entry)); 159fa9e4066Sahrens } else { 160fa9e4066Sahrens mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c " 161fa9e4066Sahrens "size=%06llx", number, 162fa9e4066Sahrens SM_OFFSET_DECODE(entry) << mapshift, 163fa9e4066Sahrens (SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) << 164fa9e4066Sahrens mapshift, 165fa9e4066Sahrens SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F', 166fa9e4066Sahrens SM_RUN_DECODE(entry) << mapshift); 167fa9e4066Sahrens if (verbose) 168fa9e4066Sahrens mdb_printf(" (raw=%012llx)\n", entry); 169fa9e4066Sahrens mdb_printf("\n"); 170fa9e4066Sahrens } 171fa9e4066Sahrens return (WALK_NEXT); 172fa9e4066Sahrens } 173fa9e4066Sahrens 174fa9e4066Sahrens 175fa9e4066Sahrens static int 176fa9e4066Sahrens dataset_name(uintptr_t addr, char *buf) 177fa9e4066Sahrens { 178fa9e4066Sahrens static int gotid; 179fa9e4066Sahrens static mdb_ctf_id_t dd_id; 180fa9e4066Sahrens uintptr_t dd_parent; 181fa9e4066Sahrens char dd_myname[MAXNAMELEN]; 182fa9e4066Sahrens 183fa9e4066Sahrens if (!gotid) { 184fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dir", 185fa9e4066Sahrens &dd_id) == -1) { 186fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dir"); 187fa9e4066Sahrens return (DCMD_ERR); 188fa9e4066Sahrens } 189fa9e4066Sahrens gotid = TRUE; 190fa9e4066Sahrens } 191fa9e4066Sahrens if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) || 192fa9e4066Sahrens GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) { 193fa9e4066Sahrens return (DCMD_ERR); 194fa9e4066Sahrens } 195fa9e4066Sahrens 196fa9e4066Sahrens if (dd_parent) { 197fa9e4066Sahrens if (dataset_name(dd_parent, buf)) 198fa9e4066Sahrens return (DCMD_ERR); 199fa9e4066Sahrens strcat(buf, "/"); 200fa9e4066Sahrens } 201fa9e4066Sahrens 202fa9e4066Sahrens if (dd_myname[0]) 203fa9e4066Sahrens strcat(buf, dd_myname); 204fa9e4066Sahrens else 205fa9e4066Sahrens strcat(buf, "???"); 206fa9e4066Sahrens 207fa9e4066Sahrens return (0); 208fa9e4066Sahrens } 209fa9e4066Sahrens 210fa9e4066Sahrens static int 211fa9e4066Sahrens objset_name(uintptr_t addr, char *buf) 212fa9e4066Sahrens { 213fa9e4066Sahrens static int gotid; 214503ad85cSMatthew Ahrens static mdb_ctf_id_t os_id, ds_id; 215fa9e4066Sahrens uintptr_t os_dsl_dataset; 216fa9e4066Sahrens char ds_snapname[MAXNAMELEN]; 217fa9e4066Sahrens uintptr_t ds_dir; 218fa9e4066Sahrens 219fa9e4066Sahrens buf[0] = '\0'; 220fa9e4066Sahrens 221fa9e4066Sahrens if (!gotid) { 222503ad85cSMatthew Ahrens if (mdb_ctf_lookup_by_name("struct objset", 223503ad85cSMatthew Ahrens &os_id) == -1) { 224503ad85cSMatthew Ahrens mdb_warn("couldn't find struct objset"); 225fa9e4066Sahrens return (DCMD_ERR); 226fa9e4066Sahrens } 227fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dsl_dataset", 228fa9e4066Sahrens &ds_id) == -1) { 229fa9e4066Sahrens mdb_warn("couldn't find struct dsl_dataset"); 230fa9e4066Sahrens return (DCMD_ERR); 231fa9e4066Sahrens } 232fa9e4066Sahrens 233fa9e4066Sahrens gotid = TRUE; 234fa9e4066Sahrens } 235fa9e4066Sahrens 236503ad85cSMatthew Ahrens if (GETMEMBID(addr, &os_id, os_dsl_dataset, os_dsl_dataset)) 237fa9e4066Sahrens return (DCMD_ERR); 238fa9e4066Sahrens 239fa9e4066Sahrens if (os_dsl_dataset == 0) { 240fa9e4066Sahrens strcat(buf, "mos"); 241fa9e4066Sahrens return (0); 242fa9e4066Sahrens } 243fa9e4066Sahrens 244fa9e4066Sahrens if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) || 245fa9e4066Sahrens GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) { 246fa9e4066Sahrens return (DCMD_ERR); 247fa9e4066Sahrens } 248fa9e4066Sahrens 249fa9e4066Sahrens if (ds_dir && dataset_name(ds_dir, buf)) 250fa9e4066Sahrens return (DCMD_ERR); 251fa9e4066Sahrens 252fa9e4066Sahrens if (ds_snapname[0]) { 253fa9e4066Sahrens strcat(buf, "@"); 254fa9e4066Sahrens strcat(buf, ds_snapname); 255fa9e4066Sahrens } 256fa9e4066Sahrens return (0); 257fa9e4066Sahrens } 258fa9e4066Sahrens 259fa9e4066Sahrens static void 260fa9e4066Sahrens enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val, 261fa9e4066Sahrens const char *prefix) 262fa9e4066Sahrens { 263fa9e4066Sahrens const char *cp; 264fa9e4066Sahrens size_t len = strlen(prefix); 265fa9e4066Sahrens 266fa9e4066Sahrens if ((cp = mdb_ctf_enum_name(id, val)) != NULL) { 267fa9e4066Sahrens if (strncmp(cp, prefix, len) == 0) 268fa9e4066Sahrens cp += len; 269fa9e4066Sahrens (void) strncpy(out, cp, size); 270fa9e4066Sahrens } else { 271fa9e4066Sahrens mdb_snprintf(out, size, "? (%d)", val); 272fa9e4066Sahrens } 273fa9e4066Sahrens } 274fa9e4066Sahrens 275614409b5Sahrens /* ARGSUSED */ 276614409b5Sahrens static int 277614409b5Sahrens zfs_params(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 278614409b5Sahrens { 279614409b5Sahrens /* 280614409b5Sahrens * This table can be approximately generated by running: 281614409b5Sahrens * egrep "^[a-z0-9_]+ [a-z0-9_]+( =.*)?;" *.c | cut -d ' ' -f 2 282614409b5Sahrens */ 283614409b5Sahrens static const char *params[] = { 284614409b5Sahrens "arc_reduce_dnlc_percent", 285614409b5Sahrens "zfs_arc_max", 286614409b5Sahrens "zfs_arc_min", 28749e3519aSmaybee "arc_shrink_shift", 288614409b5Sahrens "zfs_mdcomp_disable", 289614409b5Sahrens "zfs_prefetch_disable", 290614409b5Sahrens "zfetch_max_streams", 291614409b5Sahrens "zfetch_min_sec_reap", 292614409b5Sahrens "zfetch_block_cap", 293614409b5Sahrens "zfetch_array_rd_sz", 294614409b5Sahrens "zfs_default_bs", 295614409b5Sahrens "zfs_default_ibs", 296614409b5Sahrens "metaslab_aliquot", 297614409b5Sahrens "reference_tracking_enable", 298614409b5Sahrens "reference_history", 299614409b5Sahrens "spa_max_replication_override", 300b24ab676SJeff Bonwick "spa_mode_global", 301614409b5Sahrens "zfs_flags", 3021ab7f2deSmaybee "zfs_txg_synctime", 3031ab7f2deSmaybee "zfs_txg_timeout", 3041ab7f2deSmaybee "zfs_write_limit_min", 3051ab7f2deSmaybee "zfs_write_limit_max", 3061ab7f2deSmaybee "zfs_write_limit_shift", 3071ab7f2deSmaybee "zfs_write_limit_override", 3081ab7f2deSmaybee "zfs_no_write_throttle", 309614409b5Sahrens "zfs_vdev_cache_max", 310614409b5Sahrens "zfs_vdev_cache_size", 311614409b5Sahrens "zfs_vdev_cache_bshift", 312614409b5Sahrens "vdev_mirror_shift", 313614409b5Sahrens "zfs_vdev_max_pending", 314614409b5Sahrens "zfs_vdev_min_pending", 315614409b5Sahrens "zfs_scrub_limit", 316*b16da2e2SGeorge Wilson "zfs_no_scrub_io", 317*b16da2e2SGeorge Wilson "zfs_no_scrub_prefetch", 318614409b5Sahrens "zfs_vdev_time_shift", 319614409b5Sahrens "zfs_vdev_ramp_rate", 320614409b5Sahrens "zfs_vdev_aggregation_limit", 321614409b5Sahrens "fzap_default_block_shift", 322614409b5Sahrens "zfs_immediate_write_sz", 323614409b5Sahrens "zfs_read_chunk_size", 324614409b5Sahrens "zil_disable", 325614409b5Sahrens "zfs_nocacheflush", 3261ab7f2deSmaybee "metaslab_gang_bang", 327d6e555bdSGeorge Wilson "metaslab_df_alloc_threshold", 328d6e555bdSGeorge Wilson "metaslab_df_free_pct", 329614409b5Sahrens "zio_injection_enabled", 330614409b5Sahrens "zvol_immediate_write_sz", 331614409b5Sahrens }; 332614409b5Sahrens 333b24ab676SJeff Bonwick for (int i = 0; i < sizeof (params) / sizeof (params[0]); i++) { 334614409b5Sahrens int sz; 335614409b5Sahrens uint64_t val64; 336614409b5Sahrens uint32_t *val32p = (uint32_t *)&val64; 337614409b5Sahrens 338614409b5Sahrens sz = mdb_readvar(&val64, params[i]); 339614409b5Sahrens if (sz == 4) { 340614409b5Sahrens mdb_printf("%s = 0x%x\n", params[i], *val32p); 341614409b5Sahrens } else if (sz == 8) { 342614409b5Sahrens mdb_printf("%s = 0x%llx\n", params[i], val64); 343614409b5Sahrens } else { 344614409b5Sahrens mdb_warn("variable %s not found", params[i]); 345614409b5Sahrens } 346614409b5Sahrens } 347614409b5Sahrens 348614409b5Sahrens return (DCMD_OK); 349614409b5Sahrens } 350614409b5Sahrens 351fa9e4066Sahrens /* ARGSUSED */ 352fa9e4066Sahrens static int 353fa9e4066Sahrens blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 354fa9e4066Sahrens { 355b24ab676SJeff Bonwick mdb_ctf_id_t type_enum, checksum_enum, compress_enum; 356b24ab676SJeff Bonwick char type[80], checksum[80], compress[80]; 357b24ab676SJeff Bonwick blkptr_t blk, *bp = &blk; 358b24ab676SJeff Bonwick char buf[BP_SPRINTF_LEN]; 359fa9e4066Sahrens 360b24ab676SJeff Bonwick if (mdb_vread(&blk, sizeof (blkptr_t), addr) == -1) { 361fa9e4066Sahrens mdb_warn("failed to read blkptr_t"); 362fa9e4066Sahrens return (DCMD_ERR); 363fa9e4066Sahrens } 364fa9e4066Sahrens 365b24ab676SJeff Bonwick if (mdb_ctf_lookup_by_name("enum dmu_object_type", &type_enum) == -1 || 366b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_checksum", &checksum_enum) == -1 || 367b24ab676SJeff Bonwick mdb_ctf_lookup_by_name("enum zio_compress", &compress_enum) == -1) { 368b24ab676SJeff Bonwick mdb_warn("Could not find blkptr enumerated types"); 369fa9e4066Sahrens return (DCMD_ERR); 370fa9e4066Sahrens } 371fa9e4066Sahrens 372b24ab676SJeff Bonwick enum_lookup(type, sizeof (type), type_enum, 373b24ab676SJeff Bonwick BP_GET_TYPE(bp), "DMU_OT_"); 374b24ab676SJeff Bonwick enum_lookup(checksum, sizeof (checksum), checksum_enum, 375b24ab676SJeff Bonwick BP_GET_CHECKSUM(bp), "ZIO_CHECKSUM_"); 376b24ab676SJeff Bonwick enum_lookup(compress, sizeof (compress), compress_enum, 377b24ab676SJeff Bonwick BP_GET_COMPRESS(bp), "ZIO_COMPRESS_"); 378fa9e4066Sahrens 379b24ab676SJeff Bonwick SPRINTF_BLKPTR(mdb_snprintf, '\n', buf, bp, type, checksum, compress); 380fa9e4066Sahrens 381b24ab676SJeff Bonwick mdb_printf("%s\n", buf); 382fa9e4066Sahrens 383fa9e4066Sahrens return (DCMD_OK); 384fa9e4066Sahrens } 385fa9e4066Sahrens 386fa9e4066Sahrens /* ARGSUSED */ 387fa9e4066Sahrens static int 388fa9e4066Sahrens dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 389fa9e4066Sahrens { 390fa9e4066Sahrens mdb_ctf_id_t id; 391fa9e4066Sahrens dmu_buf_t db; 392fa9e4066Sahrens uintptr_t objset; 393fa9e4066Sahrens uint8_t level; 394fa9e4066Sahrens uint64_t blkid; 395fa9e4066Sahrens uint64_t holds; 396fa9e4066Sahrens char objectname[32]; 397fa9e4066Sahrens char blkidname[32]; 398fa9e4066Sahrens char path[MAXNAMELEN]; 399fa9e4066Sahrens 400fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) { 401fa9e4066Sahrens mdb_printf(" addr object lvl blkid holds os\n"); 402fa9e4066Sahrens } 403fa9e4066Sahrens 404fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) { 405fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 406fa9e4066Sahrens return (DCMD_ERR); 407fa9e4066Sahrens } 408fa9e4066Sahrens 409fa9e4066Sahrens if (GETMEMBID(addr, &id, db_objset, objset) || 410fa9e4066Sahrens GETMEMBID(addr, &id, db, db) || 411fa9e4066Sahrens GETMEMBID(addr, &id, db_level, level) || 412fa9e4066Sahrens GETMEMBID(addr, &id, db_blkid, blkid)) { 413fa9e4066Sahrens return (WALK_ERR); 414fa9e4066Sahrens } 415fa9e4066Sahrens 416fa9e4066Sahrens if (getrefcount(addr, &id, "db_holds", &holds)) { 417fa9e4066Sahrens return (WALK_ERR); 418fa9e4066Sahrens } 419fa9e4066Sahrens 420fa9e4066Sahrens if (db.db_object == DMU_META_DNODE_OBJECT) 421fa9e4066Sahrens (void) strcpy(objectname, "mdn"); 422fa9e4066Sahrens else 423fa9e4066Sahrens (void) mdb_snprintf(objectname, sizeof (objectname), "%llx", 424fa9e4066Sahrens (u_longlong_t)db.db_object); 425fa9e4066Sahrens 426fa9e4066Sahrens if (blkid == DB_BONUS_BLKID) 427fa9e4066Sahrens (void) strcpy(blkidname, "bonus"); 428fa9e4066Sahrens else 429fa9e4066Sahrens (void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx", 430fa9e4066Sahrens (u_longlong_t)blkid); 431fa9e4066Sahrens 432fa9e4066Sahrens if (objset_name(objset, path)) { 433fa9e4066Sahrens return (WALK_ERR); 434fa9e4066Sahrens } 435fa9e4066Sahrens 436fa9e4066Sahrens mdb_printf("%p %8s %1u %9s %2llu %s\n", 437fa9e4066Sahrens addr, objectname, level, blkidname, holds, path); 438fa9e4066Sahrens 439fa9e4066Sahrens return (DCMD_OK); 440fa9e4066Sahrens } 441fa9e4066Sahrens 442fa9e4066Sahrens /* ARGSUSED */ 443fa9e4066Sahrens static int 444fa9e4066Sahrens dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 445fa9e4066Sahrens { 446fa9e4066Sahrens #define HISTOSZ 32 447fa9e4066Sahrens uintptr_t dbp; 448fa9e4066Sahrens dmu_buf_impl_t db; 449fa9e4066Sahrens dbuf_hash_table_t ht; 450fa9e4066Sahrens uint64_t bucket, ndbufs; 451fa9e4066Sahrens uint64_t histo[HISTOSZ]; 452fa9e4066Sahrens uint64_t histo2[HISTOSZ]; 453fa9e4066Sahrens int i, maxidx; 454fa9e4066Sahrens 455fa9e4066Sahrens if (mdb_readvar(&ht, "dbuf_hash_table") == -1) { 456fa9e4066Sahrens mdb_warn("failed to read 'dbuf_hash_table'"); 457fa9e4066Sahrens return (DCMD_ERR); 458fa9e4066Sahrens } 459fa9e4066Sahrens 460fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) { 461fa9e4066Sahrens histo[i] = 0; 462fa9e4066Sahrens histo2[i] = 0; 463fa9e4066Sahrens } 464fa9e4066Sahrens 465fa9e4066Sahrens ndbufs = 0; 466fa9e4066Sahrens for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) { 467fa9e4066Sahrens int len; 468fa9e4066Sahrens 469fa9e4066Sahrens if (mdb_vread(&dbp, sizeof (void *), 470fa9e4066Sahrens (uintptr_t)(ht.hash_table+bucket)) == -1) { 471fa9e4066Sahrens mdb_warn("failed to read hash bucket %u at %p", 472fa9e4066Sahrens bucket, ht.hash_table+bucket); 473fa9e4066Sahrens return (DCMD_ERR); 474fa9e4066Sahrens } 475fa9e4066Sahrens 476fa9e4066Sahrens len = 0; 477fa9e4066Sahrens while (dbp != 0) { 478fa9e4066Sahrens if (mdb_vread(&db, sizeof (dmu_buf_impl_t), 479fa9e4066Sahrens dbp) == -1) { 480fa9e4066Sahrens mdb_warn("failed to read dbuf at %p", dbp); 481fa9e4066Sahrens return (DCMD_ERR); 482fa9e4066Sahrens } 483fa9e4066Sahrens dbp = (uintptr_t)db.db_hash_next; 484fa9e4066Sahrens for (i = MIN(len, HISTOSZ - 1); i >= 0; i--) 485fa9e4066Sahrens histo2[i]++; 486fa9e4066Sahrens len++; 487fa9e4066Sahrens ndbufs++; 488fa9e4066Sahrens } 489fa9e4066Sahrens 490fa9e4066Sahrens if (len >= HISTOSZ) 491fa9e4066Sahrens len = HISTOSZ-1; 492fa9e4066Sahrens histo[len]++; 493fa9e4066Sahrens } 494fa9e4066Sahrens 495fa9e4066Sahrens mdb_printf("hash table has %llu buckets, %llu dbufs " 496fa9e4066Sahrens "(avg %llu buckets/dbuf)\n", 497fa9e4066Sahrens ht.hash_table_mask+1, ndbufs, 498fa9e4066Sahrens (ht.hash_table_mask+1)/ndbufs); 499fa9e4066Sahrens 500fa9e4066Sahrens mdb_printf("\n"); 501fa9e4066Sahrens maxidx = 0; 502fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 503fa9e4066Sahrens if (histo[i] > 0) 504fa9e4066Sahrens maxidx = i; 505fa9e4066Sahrens mdb_printf("hash chain length number of buckets\n"); 506fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 507fa9e4066Sahrens mdb_printf("%u %llu\n", i, histo[i]); 508fa9e4066Sahrens 509fa9e4066Sahrens mdb_printf("\n"); 510fa9e4066Sahrens maxidx = 0; 511fa9e4066Sahrens for (i = 0; i < HISTOSZ; i++) 512fa9e4066Sahrens if (histo2[i] > 0) 513fa9e4066Sahrens maxidx = i; 514fa9e4066Sahrens mdb_printf("hash chain depth number of dbufs\n"); 515fa9e4066Sahrens for (i = 0; i <= maxidx; i++) 516fa9e4066Sahrens mdb_printf("%u or more %llu %llu%%\n", 517fa9e4066Sahrens i, histo2[i], histo2[i]*100/ndbufs); 518fa9e4066Sahrens 519fa9e4066Sahrens 520fa9e4066Sahrens return (DCMD_OK); 521fa9e4066Sahrens } 522fa9e4066Sahrens 523fa9e4066Sahrens typedef struct dbufs_data { 524fa9e4066Sahrens mdb_ctf_id_t id; 525fa9e4066Sahrens uint64_t objset; 526fa9e4066Sahrens uint64_t object; 527fa9e4066Sahrens uint64_t level; 528fa9e4066Sahrens uint64_t blkid; 529fa9e4066Sahrens char *osname; 530fa9e4066Sahrens } dbufs_data_t; 531fa9e4066Sahrens 532fa9e4066Sahrens #define DBUFS_UNSET (0xbaddcafedeadbeefULL) 533fa9e4066Sahrens 534fa9e4066Sahrens /* ARGSUSED */ 535fa9e4066Sahrens static int 536fa9e4066Sahrens dbufs_cb(uintptr_t addr, const void *unknown, void *arg) 537fa9e4066Sahrens { 538fa9e4066Sahrens dbufs_data_t *data = arg; 539fa9e4066Sahrens uintptr_t objset; 540fa9e4066Sahrens dmu_buf_t db; 541fa9e4066Sahrens uint8_t level; 542fa9e4066Sahrens uint64_t blkid; 543fa9e4066Sahrens char osname[MAXNAMELEN]; 544fa9e4066Sahrens 545fa9e4066Sahrens if (GETMEMBID(addr, &data->id, db_objset, objset) || 546fa9e4066Sahrens GETMEMBID(addr, &data->id, db, db) || 547fa9e4066Sahrens GETMEMBID(addr, &data->id, db_level, level) || 548fa9e4066Sahrens GETMEMBID(addr, &data->id, db_blkid, blkid)) { 549fa9e4066Sahrens return (WALK_ERR); 550fa9e4066Sahrens } 551fa9e4066Sahrens 552fa9e4066Sahrens if ((data->objset == DBUFS_UNSET || data->objset == objset) && 553fa9e4066Sahrens (data->osname == NULL || (objset_name(objset, osname) == 0 && 554ccae0b50Seschrock strcmp(data->osname, osname) == 0)) && 555fa9e4066Sahrens (data->object == DBUFS_UNSET || data->object == db.db_object) && 556fa9e4066Sahrens (data->level == DBUFS_UNSET || data->level == level) && 557fa9e4066Sahrens (data->blkid == DBUFS_UNSET || data->blkid == blkid)) { 558fa9e4066Sahrens mdb_printf("%#lr\n", addr); 559fa9e4066Sahrens } 560fa9e4066Sahrens return (WALK_NEXT); 561fa9e4066Sahrens } 562fa9e4066Sahrens 563fa9e4066Sahrens /* ARGSUSED */ 564fa9e4066Sahrens static int 565fa9e4066Sahrens dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 566fa9e4066Sahrens { 567fa9e4066Sahrens dbufs_data_t data; 568fa9e4066Sahrens char *object = NULL; 569fa9e4066Sahrens char *blkid = NULL; 570fa9e4066Sahrens 571fa9e4066Sahrens data.objset = data.object = data.level = data.blkid = DBUFS_UNSET; 572fa9e4066Sahrens data.osname = NULL; 573fa9e4066Sahrens 574fa9e4066Sahrens if (mdb_getopts(argc, argv, 575fa9e4066Sahrens 'O', MDB_OPT_UINT64, &data.objset, 576fa9e4066Sahrens 'n', MDB_OPT_STR, &data.osname, 577fa9e4066Sahrens 'o', MDB_OPT_STR, &object, 578fa9e4066Sahrens 'l', MDB_OPT_UINT64, &data.level, 579fa9e4066Sahrens 'b', MDB_OPT_STR, &blkid) != argc) { 580fa9e4066Sahrens return (DCMD_USAGE); 581fa9e4066Sahrens } 582fa9e4066Sahrens 583fa9e4066Sahrens if (object) { 584fa9e4066Sahrens if (strcmp(object, "mdn") == 0) { 585fa9e4066Sahrens data.object = DMU_META_DNODE_OBJECT; 586fa9e4066Sahrens } else { 587fa9e4066Sahrens data.object = mdb_strtoull(object); 588fa9e4066Sahrens } 589fa9e4066Sahrens } 590fa9e4066Sahrens 591fa9e4066Sahrens if (blkid) { 592fa9e4066Sahrens if (strcmp(blkid, "bonus") == 0) { 593fa9e4066Sahrens data.blkid = DB_BONUS_BLKID; 594fa9e4066Sahrens } else { 595fa9e4066Sahrens data.blkid = mdb_strtoull(blkid); 596fa9e4066Sahrens } 597fa9e4066Sahrens } 598fa9e4066Sahrens 599fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) { 600fa9e4066Sahrens mdb_warn("couldn't find struct dmu_buf_impl_t"); 601fa9e4066Sahrens return (DCMD_ERR); 602fa9e4066Sahrens } 603fa9e4066Sahrens 6045f5f7a6fSahrens if (mdb_walk("dmu_buf_impl_t", dbufs_cb, &data) != 0) { 605fa9e4066Sahrens mdb_warn("can't walk dbufs"); 606fa9e4066Sahrens return (DCMD_ERR); 607fa9e4066Sahrens } 608fa9e4066Sahrens 609fa9e4066Sahrens return (DCMD_OK); 610fa9e4066Sahrens } 611fa9e4066Sahrens 612fa9e4066Sahrens typedef struct abuf_find_data { 613fa9e4066Sahrens dva_t dva; 614fa9e4066Sahrens mdb_ctf_id_t id; 615fa9e4066Sahrens } abuf_find_data_t; 616fa9e4066Sahrens 617fa9e4066Sahrens /* ARGSUSED */ 618fa9e4066Sahrens static int 619fa9e4066Sahrens abuf_find_cb(uintptr_t addr, const void *unknown, void *arg) 620fa9e4066Sahrens { 621fa9e4066Sahrens abuf_find_data_t *data = arg; 622fa9e4066Sahrens dva_t dva; 623fa9e4066Sahrens 624fa9e4066Sahrens if (GETMEMBID(addr, &data->id, b_dva, dva)) { 625fa9e4066Sahrens return (WALK_ERR); 626fa9e4066Sahrens } 627fa9e4066Sahrens 628fa9e4066Sahrens if (dva.dva_word[0] == data->dva.dva_word[0] && 629fa9e4066Sahrens dva.dva_word[1] == data->dva.dva_word[1]) { 630fa9e4066Sahrens mdb_printf("%#lr\n", addr); 631fa9e4066Sahrens } 632fa9e4066Sahrens return (WALK_NEXT); 633fa9e4066Sahrens } 634fa9e4066Sahrens 635fa9e4066Sahrens /* ARGSUSED */ 636fa9e4066Sahrens static int 637fa9e4066Sahrens abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 638fa9e4066Sahrens { 639fa9e4066Sahrens abuf_find_data_t data; 640fa9e4066Sahrens GElf_Sym sym; 641fa9e4066Sahrens int i; 642fa9e4066Sahrens const char *syms[] = { 643a2eea2e1Sahrens "ARC_mru", 644a2eea2e1Sahrens "ARC_mru_ghost", 645a2eea2e1Sahrens "ARC_mfu", 646a2eea2e1Sahrens "ARC_mfu_ghost", 647fa9e4066Sahrens }; 648fa9e4066Sahrens 649fa9e4066Sahrens if (argc != 2) 650fa9e4066Sahrens return (DCMD_USAGE); 651fa9e4066Sahrens 652fa9e4066Sahrens for (i = 0; i < 2; i ++) { 653fa9e4066Sahrens switch (argv[i].a_type) { 654fa9e4066Sahrens case MDB_TYPE_STRING: 655fa9e4066Sahrens data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str); 656fa9e4066Sahrens break; 657fa9e4066Sahrens case MDB_TYPE_IMMEDIATE: 658fa9e4066Sahrens data.dva.dva_word[i] = argv[i].a_un.a_val; 659fa9e4066Sahrens break; 660fa9e4066Sahrens default: 661fa9e4066Sahrens return (DCMD_USAGE); 662fa9e4066Sahrens } 663fa9e4066Sahrens } 664fa9e4066Sahrens 665fa9e4066Sahrens if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) { 666fa9e4066Sahrens mdb_warn("couldn't find struct arc_buf_hdr"); 667fa9e4066Sahrens return (DCMD_ERR); 668fa9e4066Sahrens } 669fa9e4066Sahrens 670fa9e4066Sahrens for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) { 671fa9e4066Sahrens if (mdb_lookup_by_name(syms[i], &sym)) { 672fa9e4066Sahrens mdb_warn("can't find symbol %s", syms[i]); 673fa9e4066Sahrens return (DCMD_ERR); 674fa9e4066Sahrens } 675fa9e4066Sahrens 676fa9e4066Sahrens if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) { 677fa9e4066Sahrens mdb_warn("can't walk %s", syms[i]); 678fa9e4066Sahrens return (DCMD_ERR); 679fa9e4066Sahrens } 680fa9e4066Sahrens } 681fa9e4066Sahrens 682fa9e4066Sahrens return (DCMD_OK); 683fa9e4066Sahrens } 684fa9e4066Sahrens 68544cb6abcSbmc /*ARGSUSED*/ 68644cb6abcSbmc static int 68744cb6abcSbmc arc_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 68844cb6abcSbmc { 68944cb6abcSbmc kstat_named_t *stats; 69044cb6abcSbmc GElf_Sym sym; 69191ebeef5Sahrens int nstats, i; 69244cb6abcSbmc uint_t opt_a = FALSE; 69391ebeef5Sahrens uint_t opt_b = FALSE; 69491ebeef5Sahrens uint_t shift = 0; 69591ebeef5Sahrens const char *suffix; 69644cb6abcSbmc 69791ebeef5Sahrens static const char *bytestats[] = { 69891ebeef5Sahrens "p", "c", "c_min", "c_max", "size", NULL 69991ebeef5Sahrens }; 70091ebeef5Sahrens 70191ebeef5Sahrens static const char *extras[] = { 70291ebeef5Sahrens "arc_no_grow", "arc_tempreserve", 70391ebeef5Sahrens "arc_meta_used", "arc_meta_limit", "arc_meta_max", 70491ebeef5Sahrens NULL 70544cb6abcSbmc }; 70644cb6abcSbmc 70744cb6abcSbmc if (mdb_lookup_by_name("arc_stats", &sym) == -1) { 70844cb6abcSbmc mdb_warn("failed to find 'arc_stats'"); 70944cb6abcSbmc return (DCMD_ERR); 71044cb6abcSbmc } 71144cb6abcSbmc 71244cb6abcSbmc stats = mdb_zalloc(sym.st_size, UM_SLEEP | UM_GC); 71344cb6abcSbmc 71444cb6abcSbmc if (mdb_vread(stats, sym.st_size, sym.st_value) == -1) { 71544cb6abcSbmc mdb_warn("couldn't read 'arc_stats' at %p", sym.st_value); 71644cb6abcSbmc return (DCMD_ERR); 71744cb6abcSbmc } 71844cb6abcSbmc 71944cb6abcSbmc nstats = sym.st_size / sizeof (kstat_named_t); 72044cb6abcSbmc 72191ebeef5Sahrens /* NB: -a / opt_a are ignored for backwards compatability */ 72291ebeef5Sahrens if (mdb_getopts(argc, argv, 72391ebeef5Sahrens 'a', MDB_OPT_SETBITS, TRUE, &opt_a, 72491ebeef5Sahrens 'b', MDB_OPT_SETBITS, TRUE, &opt_b, 72591ebeef5Sahrens 'k', MDB_OPT_SETBITS, 10, &shift, 72691ebeef5Sahrens 'm', MDB_OPT_SETBITS, 20, &shift, 72791ebeef5Sahrens 'g', MDB_OPT_SETBITS, 30, &shift, 72891ebeef5Sahrens NULL) != argc) 72944cb6abcSbmc return (DCMD_USAGE); 73044cb6abcSbmc 73191ebeef5Sahrens if (!opt_b && !shift) 73291ebeef5Sahrens shift = 20; 73391ebeef5Sahrens 73491ebeef5Sahrens switch (shift) { 73591ebeef5Sahrens case 0: 73691ebeef5Sahrens suffix = "B"; 73791ebeef5Sahrens break; 73891ebeef5Sahrens case 10: 73991ebeef5Sahrens suffix = "KB"; 74091ebeef5Sahrens break; 74191ebeef5Sahrens case 20: 74291ebeef5Sahrens suffix = "MB"; 74391ebeef5Sahrens break; 74491ebeef5Sahrens case 30: 74591ebeef5Sahrens suffix = "GB"; 74691ebeef5Sahrens break; 74791ebeef5Sahrens default: 74891ebeef5Sahrens suffix = "XX"; 74991ebeef5Sahrens } 75091ebeef5Sahrens 75191ebeef5Sahrens for (i = 0; i < nstats; i++) { 75291ebeef5Sahrens int j; 75391ebeef5Sahrens boolean_t bytes = B_FALSE; 75491ebeef5Sahrens 75591ebeef5Sahrens for (j = 0; bytestats[j]; j++) { 75691ebeef5Sahrens if (strcmp(stats[i].name, bytestats[j]) == 0) { 75791ebeef5Sahrens bytes = B_TRUE; 75891ebeef5Sahrens break; 75991ebeef5Sahrens } 76091ebeef5Sahrens } 76144cb6abcSbmc 76291ebeef5Sahrens if (bytes) { 76391ebeef5Sahrens mdb_printf("%-25s = %9llu %s\n", stats[i].name, 76491ebeef5Sahrens stats[i].value.ui64 >> shift, suffix); 76591ebeef5Sahrens } else { 76691ebeef5Sahrens mdb_printf("%-25s = %9llu\n", stats[i].name, 76744cb6abcSbmc stats[i].value.ui64); 76844cb6abcSbmc } 76944cb6abcSbmc } 77044cb6abcSbmc 77191ebeef5Sahrens for (i = 0; extras[i]; i++) { 77291ebeef5Sahrens uint64_t buf; 77344cb6abcSbmc 77491ebeef5Sahrens if (mdb_lookup_by_name(extras[i], &sym) == -1) { 77591ebeef5Sahrens mdb_warn("failed to find '%s'", extras[i]); 77691ebeef5Sahrens return (DCMD_ERR); 77744cb6abcSbmc } 77844cb6abcSbmc 77991ebeef5Sahrens if (sym.st_size != sizeof (uint64_t) && 78091ebeef5Sahrens sym.st_size != sizeof (uint32_t)) { 78191ebeef5Sahrens mdb_warn("expected scalar for variable '%s'\n", 78291ebeef5Sahrens extras[i]); 78391ebeef5Sahrens return (DCMD_ERR); 78444cb6abcSbmc } 78544cb6abcSbmc 78691ebeef5Sahrens if (mdb_vread(&buf, sym.st_size, sym.st_value) == -1) { 78791ebeef5Sahrens mdb_warn("couldn't read '%s'", extras[i]); 78891ebeef5Sahrens return (DCMD_ERR); 78944cb6abcSbmc } 79044cb6abcSbmc 79191ebeef5Sahrens mdb_printf("%-25s = ", extras[i]); 79291ebeef5Sahrens 79391ebeef5Sahrens /* NB: all the 64-bit extras happen to be byte counts */ 79491ebeef5Sahrens if (sym.st_size == sizeof (uint64_t)) 79591ebeef5Sahrens mdb_printf("%9llu %s\n", buf >> shift, suffix); 79644cb6abcSbmc 79791ebeef5Sahrens if (sym.st_size == sizeof (uint32_t)) 79891ebeef5Sahrens mdb_printf("%9d\n", *((uint32_t *)&buf)); 79991ebeef5Sahrens } 80044cb6abcSbmc return (DCMD_OK); 80144cb6abcSbmc } 80244cb6abcSbmc 803fa9e4066Sahrens /* 804fa9e4066Sahrens * ::spa 805fa9e4066Sahrens * 806fa9e4066Sahrens * -c Print configuration information as well 807fa9e4066Sahrens * -v Print vdev state 808fa9e4066Sahrens * -e Print vdev error stats 809fa9e4066Sahrens * 810fa9e4066Sahrens * Print a summarized spa_t. When given no arguments, prints out a table of all 811fa9e4066Sahrens * active pools on the system. 812fa9e4066Sahrens */ 813fa9e4066Sahrens /* ARGSUSED */ 814fa9e4066Sahrens static int 815fa9e4066Sahrens spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 816fa9e4066Sahrens { 817fa9e4066Sahrens spa_t spa; 818fa9e4066Sahrens const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED", 819e14bb325SJeff Bonwick "SPARE", "L2CACHE", "UNINIT", "UNAVAIL", "POTENTIAL" }; 820fa9e4066Sahrens const char *state; 821fa9e4066Sahrens int config = FALSE; 822fa9e4066Sahrens int vdevs = FALSE; 823fa9e4066Sahrens int errors = FALSE; 824fa9e4066Sahrens 825fa9e4066Sahrens if (mdb_getopts(argc, argv, 826fa9e4066Sahrens 'c', MDB_OPT_SETBITS, TRUE, &config, 827fa9e4066Sahrens 'v', MDB_OPT_SETBITS, TRUE, &vdevs, 828fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 829fa9e4066Sahrens NULL) != argc) 830fa9e4066Sahrens return (DCMD_USAGE); 831fa9e4066Sahrens 832fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 833fa9e4066Sahrens if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) { 834fa9e4066Sahrens mdb_warn("can't walk spa"); 835fa9e4066Sahrens return (DCMD_ERR); 836fa9e4066Sahrens } 837fa9e4066Sahrens 838fa9e4066Sahrens return (DCMD_OK); 839fa9e4066Sahrens } 840fa9e4066Sahrens 841fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 842fa9e4066Sahrens mdb_printf("%#lr\n", addr); 843fa9e4066Sahrens return (DCMD_OK); 844fa9e4066Sahrens } 845fa9e4066Sahrens 846fa9e4066Sahrens if (DCMD_HDRSPEC(flags)) 847fa9e4066Sahrens mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE", 848fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 60 : 52, "NAME"); 849fa9e4066Sahrens 850fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 851fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 852fa9e4066Sahrens return (DCMD_ERR); 853fa9e4066Sahrens } 854fa9e4066Sahrens 855fa9e4066Sahrens if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL) 856ea8dc4b6Seschrock state = "UNKNOWN"; 857fa9e4066Sahrens else 858fa9e4066Sahrens state = statetab[spa.spa_state]; 859fa9e4066Sahrens 860e14bb325SJeff Bonwick mdb_printf("%0?p %9s %s\n", addr, state, spa.spa_name); 861fa9e4066Sahrens 862fa9e4066Sahrens if (config) { 863fa9e4066Sahrens mdb_printf("\n"); 864fa9e4066Sahrens mdb_inc_indent(4); 865fa9e4066Sahrens if (mdb_call_dcmd("spa_config", addr, flags, 0, 866fa9e4066Sahrens NULL) != DCMD_OK) 867fa9e4066Sahrens return (DCMD_ERR); 868fa9e4066Sahrens mdb_dec_indent(4); 869fa9e4066Sahrens } 870fa9e4066Sahrens 871fa9e4066Sahrens if (vdevs || errors) { 872fa9e4066Sahrens mdb_arg_t v; 873fa9e4066Sahrens 874fa9e4066Sahrens v.a_type = MDB_TYPE_STRING; 875fa9e4066Sahrens v.a_un.a_str = "-e"; 876fa9e4066Sahrens 877fa9e4066Sahrens mdb_printf("\n"); 878fa9e4066Sahrens mdb_inc_indent(4); 879fa9e4066Sahrens if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0, 880fa9e4066Sahrens &v) != DCMD_OK) 881fa9e4066Sahrens return (DCMD_ERR); 882fa9e4066Sahrens mdb_dec_indent(4); 883fa9e4066Sahrens } 884fa9e4066Sahrens 885fa9e4066Sahrens return (DCMD_OK); 886fa9e4066Sahrens } 887fa9e4066Sahrens 888fa9e4066Sahrens /* 889fa9e4066Sahrens * ::spa_config 890fa9e4066Sahrens * 891fa9e4066Sahrens * Given a spa_t, print the configuration information stored in spa_config. 892fa9e4066Sahrens * Since it's just an nvlist, format it as an indented list of name=value pairs. 893fa9e4066Sahrens * We simply read the value of spa_config and pass off to ::nvlist. 894fa9e4066Sahrens */ 895fa9e4066Sahrens /* ARGSUSED */ 896fa9e4066Sahrens static int 897fa9e4066Sahrens spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 898fa9e4066Sahrens { 899fa9e4066Sahrens spa_t spa; 900fa9e4066Sahrens 901fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 902fa9e4066Sahrens return (DCMD_USAGE); 903fa9e4066Sahrens 904fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 905fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 906fa9e4066Sahrens return (DCMD_ERR); 907fa9e4066Sahrens } 908fa9e4066Sahrens 909fa9e4066Sahrens if (spa.spa_config == NULL) { 910fa9e4066Sahrens mdb_printf("(none)\n"); 911fa9e4066Sahrens return (DCMD_OK); 912fa9e4066Sahrens } 913fa9e4066Sahrens 914fa9e4066Sahrens return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags, 915fa9e4066Sahrens 0, NULL)); 916fa9e4066Sahrens } 917fa9e4066Sahrens 918fa9e4066Sahrens /* 919fa9e4066Sahrens * ::vdev 920fa9e4066Sahrens * 921fa9e4066Sahrens * Print out a summarized vdev_t, in the following form: 922fa9e4066Sahrens * 923fa9e4066Sahrens * ADDR STATE AUX DESC 924fa9e4066Sahrens * fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0 925fa9e4066Sahrens * 926fa9e4066Sahrens * If '-r' is specified, recursively visit all children. 927fa9e4066Sahrens * 928fa9e4066Sahrens * With '-e', the statistics associated with the vdev are printed as well. 929fa9e4066Sahrens */ 930fa9e4066Sahrens static int 931614409b5Sahrens do_print_vdev(uintptr_t addr, int flags, int depth, int stats, 932fa9e4066Sahrens int recursive) 933fa9e4066Sahrens { 934fa9e4066Sahrens vdev_t vdev; 935fa9e4066Sahrens char desc[MAXNAMELEN]; 936fa9e4066Sahrens int c, children; 937fa9e4066Sahrens uintptr_t *child; 938fa9e4066Sahrens const char *state, *aux; 939fa9e4066Sahrens 940fa9e4066Sahrens if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) { 941fa9e4066Sahrens mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr); 942fa9e4066Sahrens return (DCMD_ERR); 943fa9e4066Sahrens } 944fa9e4066Sahrens 945fa9e4066Sahrens if (flags & DCMD_PIPE_OUT) { 946fa9e4066Sahrens mdb_printf("%#lr", addr); 947fa9e4066Sahrens } else { 948fa9e4066Sahrens if (vdev.vdev_path != NULL) { 949fa9e4066Sahrens if (mdb_readstr(desc, sizeof (desc), 950fa9e4066Sahrens (uintptr_t)vdev.vdev_path) == -1) { 951fa9e4066Sahrens mdb_warn("failed to read vdev_path at %p\n", 952fa9e4066Sahrens vdev.vdev_path); 953fa9e4066Sahrens return (DCMD_ERR); 954fa9e4066Sahrens } 955fa9e4066Sahrens } else if (vdev.vdev_ops != NULL) { 956fa9e4066Sahrens vdev_ops_t ops; 957fa9e4066Sahrens if (mdb_vread(&ops, sizeof (ops), 958fa9e4066Sahrens (uintptr_t)vdev.vdev_ops) == -1) { 959fa9e4066Sahrens mdb_warn("failed to read vdev_ops at %p\n", 960fa9e4066Sahrens vdev.vdev_ops); 961fa9e4066Sahrens return (DCMD_ERR); 962fa9e4066Sahrens } 963fa9e4066Sahrens (void) strcpy(desc, ops.vdev_op_type); 964fa9e4066Sahrens } else { 965fa9e4066Sahrens (void) strcpy(desc, "<unknown>"); 966fa9e4066Sahrens } 967fa9e4066Sahrens 968fa9e4066Sahrens if (depth == 0 && DCMD_HDRSPEC(flags)) 969fa9e4066Sahrens mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n", 970fa9e4066Sahrens "ADDR", "STATE", "AUX", 971fa9e4066Sahrens sizeof (uintptr_t) == 4 ? 43 : 35, 972fa9e4066Sahrens "DESCRIPTION"); 973fa9e4066Sahrens 974fa9e4066Sahrens mdb_printf("%0?p ", addr); 975fa9e4066Sahrens 976fa9e4066Sahrens switch (vdev.vdev_state) { 977fa9e4066Sahrens case VDEV_STATE_CLOSED: 978ccae0b50Seschrock state = "CLOSED"; 979ccae0b50Seschrock break; 980fa9e4066Sahrens case VDEV_STATE_OFFLINE: 981ccae0b50Seschrock state = "OFFLINE"; 982ccae0b50Seschrock break; 983fa9e4066Sahrens case VDEV_STATE_CANT_OPEN: 984ccae0b50Seschrock state = "CANT_OPEN"; 985ccae0b50Seschrock break; 986fa9e4066Sahrens case VDEV_STATE_DEGRADED: 987ccae0b50Seschrock state = "DEGRADED"; 988ccae0b50Seschrock break; 989fa9e4066Sahrens case VDEV_STATE_HEALTHY: 990ccae0b50Seschrock state = "HEALTHY"; 991ccae0b50Seschrock break; 9923d7072f8Seschrock case VDEV_STATE_REMOVED: 9933d7072f8Seschrock state = "REMOVED"; 9943d7072f8Seschrock break; 9953d7072f8Seschrock case VDEV_STATE_FAULTED: 9963d7072f8Seschrock state = "FAULTED"; 9973d7072f8Seschrock break; 998fa9e4066Sahrens default: 999ccae0b50Seschrock state = "UNKNOWN"; 1000ccae0b50Seschrock break; 1001fa9e4066Sahrens } 1002fa9e4066Sahrens 1003fa9e4066Sahrens switch (vdev.vdev_stat.vs_aux) { 1004fa9e4066Sahrens case VDEV_AUX_NONE: 1005fa9e4066Sahrens aux = "-"; 1006fa9e4066Sahrens break; 1007fa9e4066Sahrens case VDEV_AUX_OPEN_FAILED: 1008fa9e4066Sahrens aux = "OPEN_FAILED"; 1009fa9e4066Sahrens break; 1010fa9e4066Sahrens case VDEV_AUX_CORRUPT_DATA: 1011fa9e4066Sahrens aux = "CORRUPT_DATA"; 1012fa9e4066Sahrens break; 1013fa9e4066Sahrens case VDEV_AUX_NO_REPLICAS: 1014fa9e4066Sahrens aux = "NO_REPLICAS"; 1015fa9e4066Sahrens break; 1016fa9e4066Sahrens case VDEV_AUX_BAD_GUID_SUM: 1017fa9e4066Sahrens aux = "BAD_GUID_SUM"; 1018fa9e4066Sahrens break; 1019fa9e4066Sahrens case VDEV_AUX_TOO_SMALL: 1020fa9e4066Sahrens aux = "TOO_SMALL"; 1021fa9e4066Sahrens break; 1022fa9e4066Sahrens case VDEV_AUX_BAD_LABEL: 1023fa9e4066Sahrens aux = "BAD_LABEL"; 1024fa9e4066Sahrens break; 1025b87f3af3Sperrin case VDEV_AUX_VERSION_NEWER: 1026b87f3af3Sperrin aux = "VERS_NEWER"; 1027b87f3af3Sperrin break; 1028b87f3af3Sperrin case VDEV_AUX_VERSION_OLDER: 1029b87f3af3Sperrin aux = "VERS_OLDER"; 1030b87f3af3Sperrin break; 1031b87f3af3Sperrin case VDEV_AUX_SPARED: 1032b87f3af3Sperrin aux = "SPARED"; 1033b87f3af3Sperrin break; 1034b87f3af3Sperrin case VDEV_AUX_ERR_EXCEEDED: 1035b87f3af3Sperrin aux = "ERR_EXCEEDED"; 1036b87f3af3Sperrin break; 1037b87f3af3Sperrin case VDEV_AUX_IO_FAILURE: 1038b87f3af3Sperrin aux = "IO_FAILURE"; 1039b87f3af3Sperrin break; 1040b87f3af3Sperrin case VDEV_AUX_BAD_LOG: 1041b87f3af3Sperrin aux = "BAD_LOG"; 1042b87f3af3Sperrin break; 1043fa9e4066Sahrens default: 1044fa9e4066Sahrens aux = "UNKNOWN"; 1045fa9e4066Sahrens break; 1046fa9e4066Sahrens } 1047fa9e4066Sahrens 1048fa9e4066Sahrens mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc); 1049fa9e4066Sahrens 1050fa9e4066Sahrens if (stats) { 1051fa9e4066Sahrens vdev_stat_t *vs = &vdev.vdev_stat; 1052fa9e4066Sahrens int i; 1053fa9e4066Sahrens 1054fa9e4066Sahrens mdb_inc_indent(4); 1055fa9e4066Sahrens mdb_printf("\n"); 1056fa9e4066Sahrens mdb_printf("%<u> %12s %12s %12s %12s " 1057fa9e4066Sahrens "%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM", 1058fa9e4066Sahrens "IOCTL"); 1059fa9e4066Sahrens mdb_printf("OPS "); 1060fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1061fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_ops[i], 1062fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1063fa9e4066Sahrens mdb_printf("\n"); 1064fa9e4066Sahrens mdb_printf("BYTES "); 1065fa9e4066Sahrens for (i = 1; i < ZIO_TYPES; i++) 1066fa9e4066Sahrens mdb_printf("%11#llx%s", vs->vs_bytes[i], 1067fa9e4066Sahrens i == ZIO_TYPES - 1 ? "" : " "); 1068fa9e4066Sahrens 1069fa9e4066Sahrens 1070fa9e4066Sahrens mdb_printf("\n"); 1071fa9e4066Sahrens mdb_printf("EREAD %10#llx\n", vs->vs_read_errors); 1072fa9e4066Sahrens mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors); 1073fa9e4066Sahrens mdb_printf("ECKSUM %10#llx\n", 1074fa9e4066Sahrens vs->vs_checksum_errors); 1075fa9e4066Sahrens mdb_dec_indent(4); 1076fa9e4066Sahrens } 1077fa9e4066Sahrens 1078614409b5Sahrens if (stats) 1079fa9e4066Sahrens mdb_printf("\n"); 1080fa9e4066Sahrens } 1081fa9e4066Sahrens 1082fa9e4066Sahrens children = vdev.vdev_children; 1083fa9e4066Sahrens 1084fa9e4066Sahrens if (children == 0 || !recursive) 1085fa9e4066Sahrens return (DCMD_OK); 1086fa9e4066Sahrens 1087fa9e4066Sahrens child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC); 1088fa9e4066Sahrens if (mdb_vread(child, children * sizeof (void *), 1089fa9e4066Sahrens (uintptr_t)vdev.vdev_child) == -1) { 1090fa9e4066Sahrens mdb_warn("failed to read vdev children at %p", vdev.vdev_child); 1091fa9e4066Sahrens return (DCMD_ERR); 1092fa9e4066Sahrens } 1093fa9e4066Sahrens 1094fa9e4066Sahrens for (c = 0; c < children; c++) { 1095614409b5Sahrens if (do_print_vdev(child[c], flags, depth + 2, stats, 1096fa9e4066Sahrens recursive)) 1097fa9e4066Sahrens return (DCMD_ERR); 1098fa9e4066Sahrens } 1099fa9e4066Sahrens 1100fa9e4066Sahrens return (DCMD_OK); 1101fa9e4066Sahrens } 1102fa9e4066Sahrens 1103fa9e4066Sahrens static int 1104fa9e4066Sahrens vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1105fa9e4066Sahrens { 1106fa9e4066Sahrens int recursive = FALSE; 1107fa9e4066Sahrens int stats = FALSE; 1108c5904d13Seschrock uint64_t depth = 0; 1109fa9e4066Sahrens 1110fa9e4066Sahrens if (mdb_getopts(argc, argv, 1111fa9e4066Sahrens 'r', MDB_OPT_SETBITS, TRUE, &recursive, 1112fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &stats, 1113c5904d13Seschrock 'd', MDB_OPT_UINT64, &depth, 1114fa9e4066Sahrens NULL) != argc) 1115fa9e4066Sahrens return (DCMD_USAGE); 1116fa9e4066Sahrens 1117fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) { 1118fa9e4066Sahrens mdb_warn("no vdev_t address given\n"); 1119fa9e4066Sahrens return (DCMD_ERR); 1120fa9e4066Sahrens } 1121fa9e4066Sahrens 1122c5904d13Seschrock return (do_print_vdev(addr, flags, (int)depth, stats, recursive)); 1123fa9e4066Sahrens } 1124fa9e4066Sahrens 11255f5f7a6fSahrens typedef struct metaslab_walk_data { 11265f5f7a6fSahrens uint64_t mw_numvdevs; 11275f5f7a6fSahrens uintptr_t *mw_vdevs; 11285f5f7a6fSahrens int mw_curvdev; 11295f5f7a6fSahrens uint64_t mw_nummss; 11305f5f7a6fSahrens uintptr_t *mw_mss; 11315f5f7a6fSahrens int mw_curms; 11325f5f7a6fSahrens } metaslab_walk_data_t; 11335f5f7a6fSahrens 11345f5f7a6fSahrens static int 11355f5f7a6fSahrens metaslab_walk_step(mdb_walk_state_t *wsp) 11365f5f7a6fSahrens { 11375f5f7a6fSahrens metaslab_walk_data_t *mw = wsp->walk_data; 11385f5f7a6fSahrens metaslab_t ms; 11395f5f7a6fSahrens uintptr_t msp; 11405f5f7a6fSahrens 11415f5f7a6fSahrens if (mw->mw_curvdev >= mw->mw_numvdevs) 11425f5f7a6fSahrens return (WALK_DONE); 11435f5f7a6fSahrens 11445f5f7a6fSahrens if (mw->mw_mss == NULL) { 11455f5f7a6fSahrens uintptr_t mssp; 11465f5f7a6fSahrens uintptr_t vdevp; 11475f5f7a6fSahrens 11485f5f7a6fSahrens ASSERT(mw->mw_curms == 0); 11495f5f7a6fSahrens ASSERT(mw->mw_nummss == 0); 11505f5f7a6fSahrens 11515f5f7a6fSahrens vdevp = mw->mw_vdevs[mw->mw_curvdev]; 11525f5f7a6fSahrens if (GETMEMB(vdevp, struct vdev, vdev_ms, mssp) || 11535f5f7a6fSahrens GETMEMB(vdevp, struct vdev, vdev_ms_count, mw->mw_nummss)) { 11545f5f7a6fSahrens return (WALK_ERR); 11555f5f7a6fSahrens } 11565f5f7a6fSahrens 11575f5f7a6fSahrens mw->mw_mss = mdb_alloc(mw->mw_nummss * sizeof (void*), 11585f5f7a6fSahrens UM_SLEEP | UM_GC); 11595f5f7a6fSahrens if (mdb_vread(mw->mw_mss, mw->mw_nummss * sizeof (void*), 11605f5f7a6fSahrens mssp) == -1) { 11615f5f7a6fSahrens mdb_warn("failed to read vdev_ms at %p", mssp); 11625f5f7a6fSahrens return (WALK_ERR); 11635f5f7a6fSahrens } 11645f5f7a6fSahrens } 11655f5f7a6fSahrens 11665f5f7a6fSahrens if (mw->mw_curms >= mw->mw_nummss) { 11675f5f7a6fSahrens mw->mw_mss = NULL; 11685f5f7a6fSahrens mw->mw_curms = 0; 11695f5f7a6fSahrens mw->mw_nummss = 0; 11705f5f7a6fSahrens mw->mw_curvdev++; 11715f5f7a6fSahrens return (WALK_NEXT); 11725f5f7a6fSahrens } 11735f5f7a6fSahrens 11745f5f7a6fSahrens msp = mw->mw_mss[mw->mw_curms]; 11755f5f7a6fSahrens if (mdb_vread(&ms, sizeof (metaslab_t), msp) == -1) { 11765f5f7a6fSahrens mdb_warn("failed to read metaslab_t at %p", msp); 11775f5f7a6fSahrens return (WALK_ERR); 11785f5f7a6fSahrens } 11795f5f7a6fSahrens 11805f5f7a6fSahrens mw->mw_curms++; 11815f5f7a6fSahrens 11825f5f7a6fSahrens return (wsp->walk_callback(msp, &ms, wsp->walk_cbdata)); 11835f5f7a6fSahrens } 11845f5f7a6fSahrens 11855f5f7a6fSahrens /* ARGSUSED */ 11865f5f7a6fSahrens static int 11875f5f7a6fSahrens metaslab_walk_init(mdb_walk_state_t *wsp) 11885f5f7a6fSahrens { 11895f5f7a6fSahrens metaslab_walk_data_t *mw; 11905f5f7a6fSahrens uintptr_t root_vdevp; 11915f5f7a6fSahrens uintptr_t childp; 11925f5f7a6fSahrens 11935f5f7a6fSahrens if (wsp->walk_addr == NULL) { 11945f5f7a6fSahrens mdb_warn("must supply address of spa_t\n"); 11955f5f7a6fSahrens return (WALK_ERR); 11965f5f7a6fSahrens } 11975f5f7a6fSahrens 11985f5f7a6fSahrens mw = mdb_zalloc(sizeof (metaslab_walk_data_t), UM_SLEEP | UM_GC); 11995f5f7a6fSahrens 12005f5f7a6fSahrens if (GETMEMB(wsp->walk_addr, struct spa, spa_root_vdev, root_vdevp) || 12015f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_children, mw->mw_numvdevs) || 12025f5f7a6fSahrens GETMEMB(root_vdevp, struct vdev, vdev_child, childp)) { 12035f5f7a6fSahrens return (DCMD_ERR); 12045f5f7a6fSahrens } 12055f5f7a6fSahrens 12065f5f7a6fSahrens mw->mw_vdevs = mdb_alloc(mw->mw_numvdevs * sizeof (void *), 12075f5f7a6fSahrens UM_SLEEP | UM_GC); 12085f5f7a6fSahrens if (mdb_vread(mw->mw_vdevs, mw->mw_numvdevs * sizeof (void *), 12095f5f7a6fSahrens childp) == -1) { 12105f5f7a6fSahrens mdb_warn("failed to read root vdev children at %p", childp); 12115f5f7a6fSahrens return (DCMD_ERR); 12125f5f7a6fSahrens } 12135f5f7a6fSahrens 12145f5f7a6fSahrens wsp->walk_data = mw; 12155f5f7a6fSahrens 12165f5f7a6fSahrens return (WALK_NEXT); 12175f5f7a6fSahrens } 12185f5f7a6fSahrens 1219fa9e4066Sahrens typedef struct mdb_spa { 1220fa9e4066Sahrens uintptr_t spa_dsl_pool; 1221fa9e4066Sahrens uintptr_t spa_root_vdev; 1222fa9e4066Sahrens } mdb_spa_t; 1223fa9e4066Sahrens 1224fa9e4066Sahrens typedef struct mdb_dsl_dir { 1225fa9e4066Sahrens uintptr_t dd_phys; 1226fa9e4066Sahrens int64_t dd_space_towrite[TXG_SIZE]; 1227fa9e4066Sahrens } mdb_dsl_dir_t; 1228fa9e4066Sahrens 1229fa9e4066Sahrens typedef struct mdb_dsl_dir_phys { 1230fa9e4066Sahrens uint64_t dd_used_bytes; 1231fa9e4066Sahrens uint64_t dd_compressed_bytes; 1232fa9e4066Sahrens uint64_t dd_uncompressed_bytes; 1233fa9e4066Sahrens } mdb_dsl_dir_phys_t; 1234fa9e4066Sahrens 1235fa9e4066Sahrens typedef struct mdb_vdev { 1236fa9e4066Sahrens uintptr_t vdev_parent; 1237fa9e4066Sahrens uintptr_t vdev_ms; 1238fa9e4066Sahrens uint64_t vdev_ms_count; 1239fa9e4066Sahrens vdev_stat_t vdev_stat; 1240fa9e4066Sahrens } mdb_vdev_t; 1241fa9e4066Sahrens 1242fa9e4066Sahrens typedef struct mdb_metaslab { 1243fa9e4066Sahrens space_map_t ms_allocmap[TXG_SIZE]; 1244fa9e4066Sahrens space_map_t ms_freemap[TXG_SIZE]; 1245fa9e4066Sahrens space_map_t ms_map; 1246ecc2d604Sbonwick space_map_obj_t ms_smo; 12475f5f7a6fSahrens space_map_obj_t ms_smo_syncing; 1248fa9e4066Sahrens } mdb_metaslab_t; 1249fa9e4066Sahrens 12505f5f7a6fSahrens typedef struct space_data { 12515f5f7a6fSahrens uint64_t ms_allocmap[TXG_SIZE]; 12525f5f7a6fSahrens uint64_t ms_freemap[TXG_SIZE]; 12535f5f7a6fSahrens uint64_t ms_map; 12545f5f7a6fSahrens uint64_t avail; 12555f5f7a6fSahrens uint64_t nowavail; 12565f5f7a6fSahrens } space_data_t; 12575f5f7a6fSahrens 12585f5f7a6fSahrens /* ARGSUSED */ 12595f5f7a6fSahrens static int 12605f5f7a6fSahrens space_cb(uintptr_t addr, const void *unknown, void *arg) 12615f5f7a6fSahrens { 12625f5f7a6fSahrens space_data_t *sd = arg; 12635f5f7a6fSahrens mdb_metaslab_t ms; 12645f5f7a6fSahrens 12655f5f7a6fSahrens if (GETMEMB(addr, struct metaslab, ms_allocmap, ms.ms_allocmap) || 12665f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_freemap, ms.ms_freemap) || 12675f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_map, ms.ms_map) || 12685f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo, ms.ms_smo) || 12695f5f7a6fSahrens GETMEMB(addr, struct metaslab, ms_smo_syncing, ms.ms_smo_syncing)) { 12705f5f7a6fSahrens return (WALK_ERR); 12715f5f7a6fSahrens } 12725f5f7a6fSahrens 12735f5f7a6fSahrens sd->ms_allocmap[0] += ms.ms_allocmap[0].sm_space; 12745f5f7a6fSahrens sd->ms_allocmap[1] += ms.ms_allocmap[1].sm_space; 12755f5f7a6fSahrens sd->ms_allocmap[2] += ms.ms_allocmap[2].sm_space; 12765f5f7a6fSahrens sd->ms_allocmap[3] += ms.ms_allocmap[3].sm_space; 12775f5f7a6fSahrens sd->ms_freemap[0] += ms.ms_freemap[0].sm_space; 12785f5f7a6fSahrens sd->ms_freemap[1] += ms.ms_freemap[1].sm_space; 12795f5f7a6fSahrens sd->ms_freemap[2] += ms.ms_freemap[2].sm_space; 12805f5f7a6fSahrens sd->ms_freemap[3] += ms.ms_freemap[3].sm_space; 12815f5f7a6fSahrens sd->ms_map += ms.ms_map.sm_space; 12825f5f7a6fSahrens sd->avail += ms.ms_map.sm_size - ms.ms_smo.smo_alloc; 12835f5f7a6fSahrens sd->nowavail += ms.ms_map.sm_size - ms.ms_smo_syncing.smo_alloc; 12845f5f7a6fSahrens 12855f5f7a6fSahrens return (WALK_NEXT); 12865f5f7a6fSahrens } 12875f5f7a6fSahrens 1288fa9e4066Sahrens /* 1289fa9e4066Sahrens * ::spa_space [-b] 1290fa9e4066Sahrens * 1291fa9e4066Sahrens * Given a spa_t, print out it's on-disk space usage and in-core 1292fa9e4066Sahrens * estimates of future usage. If -b is given, print space in bytes. 1293fa9e4066Sahrens * Otherwise print in megabytes. 1294fa9e4066Sahrens */ 1295fa9e4066Sahrens /* ARGSUSED */ 1296fa9e4066Sahrens static int 1297fa9e4066Sahrens spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1298fa9e4066Sahrens { 1299fa9e4066Sahrens mdb_spa_t spa; 1300fa9e4066Sahrens uintptr_t dp_root_dir; 1301fa9e4066Sahrens mdb_dsl_dir_t dd; 1302fa9e4066Sahrens mdb_dsl_dir_phys_t dsp; 1303fa9e4066Sahrens uint64_t children; 1304fa9e4066Sahrens uintptr_t childaddr; 13055f5f7a6fSahrens space_data_t sd; 1306fa9e4066Sahrens int shift = 20; 1307fa9e4066Sahrens char *suffix = "M"; 1308fa9e4066Sahrens int bits = FALSE; 1309fa9e4066Sahrens 1310fa9e4066Sahrens if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) != 1311fa9e4066Sahrens argc) 1312fa9e4066Sahrens return (DCMD_USAGE); 1313fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1314fa9e4066Sahrens return (DCMD_USAGE); 1315fa9e4066Sahrens 1316fa9e4066Sahrens if (bits) { 1317fa9e4066Sahrens shift = 0; 1318fa9e4066Sahrens suffix = ""; 1319fa9e4066Sahrens } 1320fa9e4066Sahrens 1321fa9e4066Sahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) || 1322fa9e4066Sahrens GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) || 1323fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) || 1324fa9e4066Sahrens GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) || 1325fa9e4066Sahrens GETMEMB(spa.spa_dsl_pool, struct dsl_pool, 1326fa9e4066Sahrens dp_root_dir, dp_root_dir) || 1327fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) || 1328fa9e4066Sahrens GETMEMB(dp_root_dir, struct dsl_dir, 1329fa9e4066Sahrens dd_space_towrite, dd.dd_space_towrite) || 1330fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 13315f5f7a6fSahrens dd_used_bytes, dsp.dd_used_bytes) || 13325f5f7a6fSahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1333fa9e4066Sahrens dd_compressed_bytes, dsp.dd_compressed_bytes) || 1334fa9e4066Sahrens GETMEMB(dd.dd_phys, struct dsl_dir_phys, 1335fa9e4066Sahrens dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) { 1336fa9e4066Sahrens return (DCMD_ERR); 1337fa9e4066Sahrens } 1338fa9e4066Sahrens 1339fa9e4066Sahrens mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n", 1340fa9e4066Sahrens dd.dd_space_towrite[0] >> shift, suffix, 1341fa9e4066Sahrens dd.dd_space_towrite[1] >> shift, suffix, 1342fa9e4066Sahrens dd.dd_space_towrite[2] >> shift, suffix, 1343fa9e4066Sahrens dd.dd_space_towrite[3] >> shift, suffix); 1344fa9e4066Sahrens 1345fa9e4066Sahrens mdb_printf("dd_phys.dd_used_bytes = %llu%s\n", 1346fa9e4066Sahrens dsp.dd_used_bytes >> shift, suffix); 13475f5f7a6fSahrens mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n", 13485f5f7a6fSahrens dsp.dd_compressed_bytes >> shift, suffix); 13495f5f7a6fSahrens mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n", 13505f5f7a6fSahrens dsp.dd_uncompressed_bytes >> shift, suffix); 13515f5f7a6fSahrens 13525f5f7a6fSahrens bzero(&sd, sizeof (sd)); 13535f5f7a6fSahrens if (mdb_pwalk("metaslab", space_cb, &sd, addr) != 0) { 13545f5f7a6fSahrens mdb_warn("can't walk metaslabs"); 13555f5f7a6fSahrens return (DCMD_ERR); 1356fa9e4066Sahrens } 1357fa9e4066Sahrens 1358fa9e4066Sahrens mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n", 13595f5f7a6fSahrens sd.ms_allocmap[0] >> shift, suffix, 13605f5f7a6fSahrens sd.ms_allocmap[1] >> shift, suffix, 13615f5f7a6fSahrens sd.ms_allocmap[2] >> shift, suffix, 13625f5f7a6fSahrens sd.ms_allocmap[3] >> shift, suffix); 1363fa9e4066Sahrens mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n", 13645f5f7a6fSahrens sd.ms_freemap[0] >> shift, suffix, 13655f5f7a6fSahrens sd.ms_freemap[1] >> shift, suffix, 13665f5f7a6fSahrens sd.ms_freemap[2] >> shift, suffix, 13675f5f7a6fSahrens sd.ms_freemap[3] >> shift, suffix); 13685f5f7a6fSahrens mdb_printf("ms_map = %llu%s\n", sd.ms_map >> shift, suffix); 13695f5f7a6fSahrens mdb_printf("last synced avail = %llu%s\n", sd.avail >> shift, suffix); 13705f5f7a6fSahrens mdb_printf("current syncing avail = %llu%s\n", 13715f5f7a6fSahrens sd.nowavail >> shift, suffix); 1372fa9e4066Sahrens 1373fa9e4066Sahrens return (DCMD_OK); 1374fa9e4066Sahrens } 1375fa9e4066Sahrens 1376fa9e4066Sahrens /* 1377fa9e4066Sahrens * ::spa_verify 1378fa9e4066Sahrens * 1379fa9e4066Sahrens * Given a spa_t, verify that that the pool is self-consistent. 1380fa9e4066Sahrens * Currently, it only checks to make sure that the vdev tree exists. 1381fa9e4066Sahrens */ 1382fa9e4066Sahrens /* ARGSUSED */ 1383fa9e4066Sahrens static int 1384fa9e4066Sahrens spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1385fa9e4066Sahrens { 1386fa9e4066Sahrens spa_t spa; 1387fa9e4066Sahrens 1388fa9e4066Sahrens if (argc != 0 || !(flags & DCMD_ADDRSPEC)) 1389fa9e4066Sahrens return (DCMD_USAGE); 1390fa9e4066Sahrens 1391fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1392fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1393fa9e4066Sahrens return (DCMD_ERR); 1394fa9e4066Sahrens } 1395fa9e4066Sahrens 1396fa9e4066Sahrens if (spa.spa_root_vdev == NULL) { 1397fa9e4066Sahrens mdb_printf("no vdev tree present\n"); 1398fa9e4066Sahrens return (DCMD_OK); 1399fa9e4066Sahrens } 1400fa9e4066Sahrens 1401fa9e4066Sahrens return (DCMD_OK); 1402fa9e4066Sahrens } 1403fa9e4066Sahrens 1404ec9f632eSEric Schrock static int 1405ec9f632eSEric Schrock spa_print_aux(spa_aux_vdev_t *sav, uint_t flags, mdb_arg_t *v, 1406ec9f632eSEric Schrock const char *name) 1407ec9f632eSEric Schrock { 1408ec9f632eSEric Schrock uintptr_t *aux; 1409ec9f632eSEric Schrock size_t len; 1410ec9f632eSEric Schrock int ret, i; 1411ec9f632eSEric Schrock 1412ec9f632eSEric Schrock /* 1413ec9f632eSEric Schrock * Iterate over aux vdevs and print those out as well. This is a 1414ec9f632eSEric Schrock * little annoying because we don't have a root vdev to pass to ::vdev. 1415ec9f632eSEric Schrock * Instead, we print a single line and then call it for each child 1416ec9f632eSEric Schrock * vdev. 1417ec9f632eSEric Schrock */ 1418ec9f632eSEric Schrock if (sav->sav_count != 0) { 1419ec9f632eSEric Schrock v[1].a_type = MDB_TYPE_STRING; 1420ec9f632eSEric Schrock v[1].a_un.a_str = "-d"; 1421ec9f632eSEric Schrock v[2].a_type = MDB_TYPE_IMMEDIATE; 1422ec9f632eSEric Schrock v[2].a_un.a_val = 2; 1423ec9f632eSEric Schrock 1424ec9f632eSEric Schrock len = sav->sav_count * sizeof (uintptr_t); 1425ec9f632eSEric Schrock aux = mdb_alloc(len, UM_SLEEP); 1426ec9f632eSEric Schrock if (mdb_vread(aux, len, 1427ec9f632eSEric Schrock (uintptr_t)sav->sav_vdevs) == -1) { 1428ec9f632eSEric Schrock mdb_free(aux, len); 1429ec9f632eSEric Schrock mdb_warn("failed to read l2cache vdevs at %p", 1430ec9f632eSEric Schrock sav->sav_vdevs); 1431ec9f632eSEric Schrock return (DCMD_ERR); 1432ec9f632eSEric Schrock } 1433ec9f632eSEric Schrock 1434ec9f632eSEric Schrock mdb_printf("%-?s %-9s %-12s %s\n", "-", "-", "-", name); 1435ec9f632eSEric Schrock 1436ec9f632eSEric Schrock for (i = 0; i < sav->sav_count; i++) { 1437ec9f632eSEric Schrock ret = mdb_call_dcmd("vdev", aux[i], flags, 3, v); 1438ec9f632eSEric Schrock if (ret != DCMD_OK) { 1439ec9f632eSEric Schrock mdb_free(aux, len); 1440ec9f632eSEric Schrock return (ret); 1441ec9f632eSEric Schrock } 1442ec9f632eSEric Schrock } 1443ec9f632eSEric Schrock 1444ec9f632eSEric Schrock mdb_free(aux, len); 1445ec9f632eSEric Schrock } 1446ec9f632eSEric Schrock 1447ec9f632eSEric Schrock return (0); 1448ec9f632eSEric Schrock } 1449ec9f632eSEric Schrock 1450fa9e4066Sahrens /* 1451fa9e4066Sahrens * ::spa_vdevs 1452fa9e4066Sahrens * 1453fa9e4066Sahrens * -e Include error stats 1454fa9e4066Sahrens * 1455fa9e4066Sahrens * Print out a summarized list of vdevs for the given spa_t. 1456c5904d13Seschrock * This is accomplished by invoking "::vdev -re" on the root vdev, as well as 1457c5904d13Seschrock * iterating over the cache devices. 1458fa9e4066Sahrens */ 1459fa9e4066Sahrens /* ARGSUSED */ 1460fa9e4066Sahrens static int 1461fa9e4066Sahrens spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1462fa9e4066Sahrens { 1463fa9e4066Sahrens spa_t spa; 1464c5904d13Seschrock mdb_arg_t v[3]; 1465fa9e4066Sahrens int errors = FALSE; 1466ec9f632eSEric Schrock int ret; 1467fa9e4066Sahrens 1468fa9e4066Sahrens if (mdb_getopts(argc, argv, 1469fa9e4066Sahrens 'e', MDB_OPT_SETBITS, TRUE, &errors, 1470fa9e4066Sahrens NULL) != argc) 1471fa9e4066Sahrens return (DCMD_USAGE); 1472fa9e4066Sahrens 1473fa9e4066Sahrens if (!(flags & DCMD_ADDRSPEC)) 1474fa9e4066Sahrens return (DCMD_USAGE); 1475fa9e4066Sahrens 1476fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), addr) == -1) { 1477fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", addr); 1478fa9e4066Sahrens return (DCMD_ERR); 1479fa9e4066Sahrens } 1480fa9e4066Sahrens 1481088e9d47Seschrock /* 1482088e9d47Seschrock * Unitialized spa_t structures can have a NULL root vdev. 1483088e9d47Seschrock */ 1484088e9d47Seschrock if (spa.spa_root_vdev == NULL) { 1485088e9d47Seschrock mdb_printf("no associated vdevs\n"); 1486088e9d47Seschrock return (DCMD_OK); 1487088e9d47Seschrock } 1488088e9d47Seschrock 1489c5904d13Seschrock v[0].a_type = MDB_TYPE_STRING; 1490c5904d13Seschrock v[0].a_un.a_str = errors ? "-re" : "-r"; 1491fa9e4066Sahrens 1492c5904d13Seschrock ret = mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev, 1493c5904d13Seschrock flags, 1, v); 1494c5904d13Seschrock if (ret != DCMD_OK) 1495c5904d13Seschrock return (ret); 1496c5904d13Seschrock 1497ec9f632eSEric Schrock if (spa_print_aux(&spa.spa_l2cache, flags, v, "cache") != 0 || 1498ec9f632eSEric Schrock spa_print_aux(&spa.spa_spares, flags, v, "spares") != 0) 1499ec9f632eSEric Schrock return (DCMD_ERR); 1500c5904d13Seschrock 1501c5904d13Seschrock return (DCMD_OK); 1502fa9e4066Sahrens } 1503fa9e4066Sahrens 1504ccae0b50Seschrock /* 1505ccae0b50Seschrock * ::zio 1506ccae0b50Seschrock * 1507ccae0b50Seschrock * Print a summary of zio_t and all its children. This is intended to display a 1508ccae0b50Seschrock * zio tree, and hence we only pick the most important pieces of information for 1509ccae0b50Seschrock * the main summary. More detailed information can always be found by doing a 1510ccae0b50Seschrock * '::print zio' on the underlying zio_t. The columns we display are: 1511ccae0b50Seschrock * 1512ccae0b50Seschrock * ADDRESS TYPE STAGE WAITER 1513ccae0b50Seschrock * 1514ccae0b50Seschrock * The 'address' column is indented by one space for each depth level as we 1515ccae0b50Seschrock * descend down the tree. 1516ccae0b50Seschrock */ 1517fac3008cSeschrock 1518a3f829aeSBill Moore #define ZIO_MAXINDENT 24 1519a3f829aeSBill Moore #define ZIO_MAXWIDTH (sizeof (uintptr_t) * 2 + ZIO_MAXINDENT) 1520a3f829aeSBill Moore #define ZIO_WALK_SELF 0 1521a3f829aeSBill Moore #define ZIO_WALK_CHILD 1 1522a3f829aeSBill Moore #define ZIO_WALK_PARENT 2 1523a3f829aeSBill Moore 1524a3f829aeSBill Moore typedef struct zio_print_args { 1525a3f829aeSBill Moore int zpa_current_depth; 1526a3f829aeSBill Moore int zpa_min_depth; 1527a3f829aeSBill Moore int zpa_max_depth; 1528a3f829aeSBill Moore int zpa_type; 1529a3f829aeSBill Moore uint_t zpa_flags; 1530a3f829aeSBill Moore } zio_print_args_t; 1531a3f829aeSBill Moore 1532a3f829aeSBill Moore static int zio_child_cb(uintptr_t addr, const void *unknown, void *arg); 1533fac3008cSeschrock 1534ccae0b50Seschrock static int 1535ccae0b50Seschrock zio_print_cb(uintptr_t addr, const void *data, void *priv) 1536ccae0b50Seschrock { 1537ccae0b50Seschrock const zio_t *zio = data; 1538a3f829aeSBill Moore zio_print_args_t *zpa = priv; 1539ccae0b50Seschrock mdb_ctf_id_t type_enum, stage_enum; 1540a3f829aeSBill Moore int indent = zpa->zpa_current_depth; 1541ccae0b50Seschrock const char *type, *stage; 1542a3f829aeSBill Moore uintptr_t laddr; 1543ccae0b50Seschrock 1544a3f829aeSBill Moore if (indent > ZIO_MAXINDENT) 1545a3f829aeSBill Moore indent = ZIO_MAXINDENT; 1546ccae0b50Seschrock 1547ccae0b50Seschrock if (mdb_ctf_lookup_by_name("enum zio_type", &type_enum) == -1 || 1548ccae0b50Seschrock mdb_ctf_lookup_by_name("enum zio_stage", &stage_enum) == -1) { 1549ccae0b50Seschrock mdb_warn("failed to lookup zio enums"); 1550ccae0b50Seschrock return (WALK_ERR); 1551ccae0b50Seschrock } 1552ccae0b50Seschrock 1553ccae0b50Seschrock if ((type = mdb_ctf_enum_name(type_enum, zio->io_type)) != NULL) 1554ccae0b50Seschrock type += sizeof ("ZIO_TYPE_") - 1; 1555ccae0b50Seschrock else 1556ccae0b50Seschrock type = "?"; 1557ccae0b50Seschrock 1558ccae0b50Seschrock if ((stage = mdb_ctf_enum_name(stage_enum, zio->io_stage)) != NULL) 1559ccae0b50Seschrock stage += sizeof ("ZIO_STAGE_") - 1; 1560ccae0b50Seschrock else 1561ccae0b50Seschrock stage = "?"; 1562ccae0b50Seschrock 1563a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_min_depth) { 1564a3f829aeSBill Moore if (zpa->zpa_flags & DCMD_PIPE_OUT) { 1565a3f829aeSBill Moore mdb_printf("%?p\n", addr); 1566a3f829aeSBill Moore } else { 1567a3f829aeSBill Moore mdb_printf("%*s%-*p %-5s %-16s ", indent, "", 1568a3f829aeSBill Moore ZIO_MAXWIDTH - indent, addr, type, stage); 1569a3f829aeSBill Moore if (zio->io_waiter) 1570a3f829aeSBill Moore mdb_printf("%?p\n", zio->io_waiter); 1571a3f829aeSBill Moore else 1572a3f829aeSBill Moore mdb_printf("-\n"); 1573a3f829aeSBill Moore } 1574a3f829aeSBill Moore } 1575a3f829aeSBill Moore 1576a3f829aeSBill Moore if (zpa->zpa_current_depth >= zpa->zpa_max_depth) 1577a3f829aeSBill Moore return (WALK_NEXT); 1578ccae0b50Seschrock 1579a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1580a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_parent_list); 1581ccae0b50Seschrock else 1582a3f829aeSBill Moore laddr = addr + OFFSETOF(zio_t, io_child_list); 1583ccae0b50Seschrock 1584a3f829aeSBill Moore zpa->zpa_current_depth++; 1585a3f829aeSBill Moore if (mdb_pwalk("list", zio_child_cb, zpa, laddr) != 0) { 1586a3f829aeSBill Moore mdb_warn("failed to walk zio_t children at %p\n", laddr); 1587ccae0b50Seschrock return (WALK_ERR); 1588ccae0b50Seschrock } 1589a3f829aeSBill Moore zpa->zpa_current_depth--; 1590ccae0b50Seschrock 1591ccae0b50Seschrock return (WALK_NEXT); 1592ccae0b50Seschrock } 1593ccae0b50Seschrock 1594a3f829aeSBill Moore /* ARGSUSED */ 1595ccae0b50Seschrock static int 1596a3f829aeSBill Moore zio_child_cb(uintptr_t addr, const void *unknown, void *arg) 1597ccae0b50Seschrock { 1598a3f829aeSBill Moore zio_link_t zl; 1599ccae0b50Seschrock zio_t zio; 1600a3f829aeSBill Moore uintptr_t ziop; 1601a3f829aeSBill Moore zio_print_args_t *zpa = arg; 1602a3f829aeSBill Moore 1603a3f829aeSBill Moore if (mdb_vread(&zl, sizeof (zl), addr) == -1) { 1604a3f829aeSBill Moore mdb_warn("failed to read zio_link_t at %p", addr); 1605a3f829aeSBill Moore return (WALK_ERR); 1606a3f829aeSBill Moore } 1607a3f829aeSBill Moore 1608a3f829aeSBill Moore if (zpa->zpa_type == ZIO_WALK_PARENT) 1609a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_parent; 1610a3f829aeSBill Moore else 1611a3f829aeSBill Moore ziop = (uintptr_t)zl.zl_child; 1612a3f829aeSBill Moore 1613a3f829aeSBill Moore if (mdb_vread(&zio, sizeof (zio_t), ziop) == -1) { 1614a3f829aeSBill Moore mdb_warn("failed to read zio_t at %p", ziop); 1615a3f829aeSBill Moore return (WALK_ERR); 1616a3f829aeSBill Moore } 1617fac3008cSeschrock 1618a3f829aeSBill Moore return (zio_print_cb(ziop, &zio, arg)); 1619a3f829aeSBill Moore } 1620a3f829aeSBill Moore 1621a3f829aeSBill Moore /* ARGSUSED */ 1622a3f829aeSBill Moore static int 1623a3f829aeSBill Moore zio_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1624a3f829aeSBill Moore { 1625a3f829aeSBill Moore zio_t zio; 1626a3f829aeSBill Moore zio_print_args_t zpa = { 0 }; 1627ccae0b50Seschrock 1628ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1629ccae0b50Seschrock return (DCMD_USAGE); 1630ccae0b50Seschrock 1631a3f829aeSBill Moore if (mdb_getopts(argc, argv, 1632a3f829aeSBill Moore 'r', MDB_OPT_SETBITS, INT_MAX, &zpa.zpa_max_depth, 1633a3f829aeSBill Moore 'c', MDB_OPT_SETBITS, ZIO_WALK_CHILD, &zpa.zpa_type, 1634a3f829aeSBill Moore 'p', MDB_OPT_SETBITS, ZIO_WALK_PARENT, &zpa.zpa_type, 1635a3f829aeSBill Moore NULL) != argc) 1636a3f829aeSBill Moore return (DCMD_USAGE); 1637a3f829aeSBill Moore 1638a3f829aeSBill Moore zpa.zpa_flags = flags; 1639a3f829aeSBill Moore if (zpa.zpa_max_depth != 0) { 1640a3f829aeSBill Moore if (zpa.zpa_type == ZIO_WALK_SELF) 1641a3f829aeSBill Moore zpa.zpa_type = ZIO_WALK_CHILD; 1642a3f829aeSBill Moore } else if (zpa.zpa_type != ZIO_WALK_SELF) { 1643a3f829aeSBill Moore zpa.zpa_min_depth = 1; 1644a3f829aeSBill Moore zpa.zpa_max_depth = 1; 1645a3f829aeSBill Moore } 1646a3f829aeSBill Moore 1647ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio_t), addr) == -1) { 1648ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", addr); 1649ccae0b50Seschrock return (DCMD_ERR); 1650ccae0b50Seschrock } 1651ccae0b50Seschrock 1652a3f829aeSBill Moore if (!(flags & DCMD_PIPE_OUT) && DCMD_HDRSPEC(flags)) 1653a3f829aeSBill Moore mdb_printf("%<u>%-*s %-5s %-16s %-?s%</u>\n", ZIO_MAXWIDTH, 1654fac3008cSeschrock "ADDRESS", "TYPE", "STAGE", "WAITER"); 1655fac3008cSeschrock 1656a3f829aeSBill Moore if (zio_print_cb(addr, &zio, &zpa) != WALK_NEXT) 1657ccae0b50Seschrock return (DCMD_ERR); 1658ccae0b50Seschrock 1659ccae0b50Seschrock return (DCMD_OK); 1660ccae0b50Seschrock } 1661ccae0b50Seschrock 1662ccae0b50Seschrock /* 1663ccae0b50Seschrock * [addr]::zio_state 1664ccae0b50Seschrock * 1665ccae0b50Seschrock * Print a summary of all zio_t structures on the system, or for a particular 1666ccae0b50Seschrock * pool. This is equivalent to '::walk zio_root | ::zio'. 1667ccae0b50Seschrock */ 1668ccae0b50Seschrock /*ARGSUSED*/ 1669ccae0b50Seschrock static int 1670ccae0b50Seschrock zio_state(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 1671ccae0b50Seschrock { 1672ccae0b50Seschrock /* 1673ccae0b50Seschrock * MDB will remember the last address of the pipeline, so if we don't 1674ccae0b50Seschrock * zero this we'll end up trying to walk zio structures for a 1675ccae0b50Seschrock * non-existent spa_t. 1676ccae0b50Seschrock */ 1677ccae0b50Seschrock if (!(flags & DCMD_ADDRSPEC)) 1678ccae0b50Seschrock addr = 0; 1679ccae0b50Seschrock 1680ccae0b50Seschrock return (mdb_pwalk_dcmd("zio_root", "zio", argc, argv, addr)); 1681ccae0b50Seschrock } 1682ccae0b50Seschrock 1683fa9e4066Sahrens typedef struct txg_list_walk_data { 1684fa9e4066Sahrens uintptr_t lw_head[TXG_SIZE]; 1685fa9e4066Sahrens int lw_txgoff; 1686fa9e4066Sahrens int lw_maxoff; 1687fa9e4066Sahrens size_t lw_offset; 1688fa9e4066Sahrens void *lw_obj; 1689fa9e4066Sahrens } txg_list_walk_data_t; 1690fa9e4066Sahrens 1691fa9e4066Sahrens static int 1692fa9e4066Sahrens txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff) 1693fa9e4066Sahrens { 1694fa9e4066Sahrens txg_list_walk_data_t *lwd; 1695fa9e4066Sahrens txg_list_t list; 1696fa9e4066Sahrens int i; 1697fa9e4066Sahrens 1698fa9e4066Sahrens lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC); 1699fa9e4066Sahrens if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) { 1700fa9e4066Sahrens mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr); 1701fa9e4066Sahrens return (WALK_ERR); 1702fa9e4066Sahrens } 1703fa9e4066Sahrens 1704fa9e4066Sahrens for (i = 0; i < TXG_SIZE; i++) 1705fa9e4066Sahrens lwd->lw_head[i] = (uintptr_t)list.tl_head[i]; 1706fa9e4066Sahrens lwd->lw_offset = list.tl_offset; 1707fa9e4066Sahrens lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t), 1708fa9e4066Sahrens UM_SLEEP | UM_GC); 1709fa9e4066Sahrens lwd->lw_txgoff = txg; 1710fa9e4066Sahrens lwd->lw_maxoff = maxoff; 1711fa9e4066Sahrens 1712fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1713fa9e4066Sahrens wsp->walk_data = lwd; 1714fa9e4066Sahrens 1715fa9e4066Sahrens return (WALK_NEXT); 1716fa9e4066Sahrens } 1717fa9e4066Sahrens 1718fa9e4066Sahrens static int 1719fa9e4066Sahrens txg_list_walk_init(mdb_walk_state_t *wsp) 1720fa9e4066Sahrens { 1721fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1)); 1722fa9e4066Sahrens } 1723fa9e4066Sahrens 1724fa9e4066Sahrens static int 1725fa9e4066Sahrens txg_list0_walk_init(mdb_walk_state_t *wsp) 1726fa9e4066Sahrens { 1727fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 0, 0)); 1728fa9e4066Sahrens } 1729fa9e4066Sahrens 1730fa9e4066Sahrens static int 1731fa9e4066Sahrens txg_list1_walk_init(mdb_walk_state_t *wsp) 1732fa9e4066Sahrens { 1733fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 1, 1)); 1734fa9e4066Sahrens } 1735fa9e4066Sahrens 1736fa9e4066Sahrens static int 1737fa9e4066Sahrens txg_list2_walk_init(mdb_walk_state_t *wsp) 1738fa9e4066Sahrens { 1739fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 2, 2)); 1740fa9e4066Sahrens } 1741fa9e4066Sahrens 1742fa9e4066Sahrens static int 1743fa9e4066Sahrens txg_list3_walk_init(mdb_walk_state_t *wsp) 1744fa9e4066Sahrens { 1745fa9e4066Sahrens return (txg_list_walk_init_common(wsp, 3, 3)); 1746fa9e4066Sahrens } 1747fa9e4066Sahrens 1748fa9e4066Sahrens static int 1749fa9e4066Sahrens txg_list_walk_step(mdb_walk_state_t *wsp) 1750fa9e4066Sahrens { 1751fa9e4066Sahrens txg_list_walk_data_t *lwd = wsp->walk_data; 1752fa9e4066Sahrens uintptr_t addr; 1753fa9e4066Sahrens txg_node_t *node; 1754fa9e4066Sahrens int status; 1755fa9e4066Sahrens 1756fa9e4066Sahrens while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) { 1757fa9e4066Sahrens lwd->lw_txgoff++; 1758fa9e4066Sahrens wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff]; 1759fa9e4066Sahrens } 1760fa9e4066Sahrens 1761fa9e4066Sahrens if (wsp->walk_addr == NULL) 1762fa9e4066Sahrens return (WALK_DONE); 1763fa9e4066Sahrens 1764fa9e4066Sahrens addr = wsp->walk_addr - lwd->lw_offset; 1765fa9e4066Sahrens 1766fa9e4066Sahrens if (mdb_vread(lwd->lw_obj, 1767fa9e4066Sahrens lwd->lw_offset + sizeof (txg_node_t), addr) == -1) { 1768fa9e4066Sahrens mdb_warn("failed to read list element at %#lx", addr); 1769fa9e4066Sahrens return (WALK_ERR); 1770fa9e4066Sahrens } 1771fa9e4066Sahrens 1772fa9e4066Sahrens status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata); 1773fa9e4066Sahrens node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset); 1774fa9e4066Sahrens wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff]; 1775fa9e4066Sahrens 1776fa9e4066Sahrens return (status); 1777fa9e4066Sahrens } 1778fa9e4066Sahrens 1779fa9e4066Sahrens /* 1780fa9e4066Sahrens * ::walk spa 1781fa9e4066Sahrens * 1782fa9e4066Sahrens * Walk all named spa_t structures in the namespace. This is nothing more than 1783fa9e4066Sahrens * a layered avl walk. 1784fa9e4066Sahrens */ 1785fa9e4066Sahrens static int 1786fa9e4066Sahrens spa_walk_init(mdb_walk_state_t *wsp) 1787fa9e4066Sahrens { 1788fa9e4066Sahrens GElf_Sym sym; 1789fa9e4066Sahrens 1790fa9e4066Sahrens if (wsp->walk_addr != NULL) { 1791fa9e4066Sahrens mdb_warn("spa walk only supports global walks\n"); 1792fa9e4066Sahrens return (WALK_ERR); 1793fa9e4066Sahrens } 1794fa9e4066Sahrens 1795fa9e4066Sahrens if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) { 1796fa9e4066Sahrens mdb_warn("failed to find symbol 'spa_namespace_avl'"); 1797fa9e4066Sahrens return (WALK_ERR); 1798fa9e4066Sahrens } 1799fa9e4066Sahrens 1800fa9e4066Sahrens wsp->walk_addr = (uintptr_t)sym.st_value; 1801fa9e4066Sahrens 1802fa9e4066Sahrens if (mdb_layered_walk("avl", wsp) == -1) { 1803fa9e4066Sahrens mdb_warn("failed to walk 'avl'\n"); 1804fa9e4066Sahrens return (WALK_ERR); 1805fa9e4066Sahrens } 1806fa9e4066Sahrens 1807fa9e4066Sahrens return (WALK_NEXT); 1808fa9e4066Sahrens } 1809fa9e4066Sahrens 1810fa9e4066Sahrens static int 1811fa9e4066Sahrens spa_walk_step(mdb_walk_state_t *wsp) 1812fa9e4066Sahrens { 1813fa9e4066Sahrens spa_t spa; 1814fa9e4066Sahrens 1815fa9e4066Sahrens if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) { 1816fa9e4066Sahrens mdb_warn("failed to read spa_t at %p", wsp->walk_addr); 1817fa9e4066Sahrens return (WALK_ERR); 1818fa9e4066Sahrens } 1819fa9e4066Sahrens 1820fa9e4066Sahrens return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata)); 1821fa9e4066Sahrens } 1822fa9e4066Sahrens 1823ccae0b50Seschrock /* 1824ccae0b50Seschrock * [addr]::walk zio 1825ccae0b50Seschrock * 1826ccae0b50Seschrock * Walk all active zio_t structures on the system. This is simply a layered 1827ccae0b50Seschrock * walk on top of ::walk zio_cache, with the optional ability to limit the 1828ccae0b50Seschrock * structures to a particular pool. 1829ccae0b50Seschrock */ 1830ccae0b50Seschrock static int 1831ccae0b50Seschrock zio_walk_init(mdb_walk_state_t *wsp) 1832ccae0b50Seschrock { 1833ccae0b50Seschrock wsp->walk_data = (void *)wsp->walk_addr; 1834ccae0b50Seschrock 1835ccae0b50Seschrock if (mdb_layered_walk("zio_cache", wsp) == -1) { 1836ccae0b50Seschrock mdb_warn("failed to walk 'zio_cache'\n"); 1837ccae0b50Seschrock return (WALK_ERR); 1838ccae0b50Seschrock } 1839ccae0b50Seschrock 1840ccae0b50Seschrock return (WALK_NEXT); 1841ccae0b50Seschrock } 1842ccae0b50Seschrock 1843ccae0b50Seschrock static int 1844ccae0b50Seschrock zio_walk_step(mdb_walk_state_t *wsp) 1845ccae0b50Seschrock { 1846ccae0b50Seschrock zio_t zio; 1847ccae0b50Seschrock 1848ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1849ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1850ccae0b50Seschrock return (WALK_ERR); 1851ccae0b50Seschrock } 1852ccae0b50Seschrock 1853ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1854ccae0b50Seschrock return (WALK_NEXT); 1855ccae0b50Seschrock 1856ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1857ccae0b50Seschrock } 1858ccae0b50Seschrock 1859ccae0b50Seschrock /* 1860ccae0b50Seschrock * [addr]::walk zio_root 1861ccae0b50Seschrock * 1862ccae0b50Seschrock * Walk only root zio_t structures, optionally for a particular spa_t. 1863ccae0b50Seschrock */ 1864ccae0b50Seschrock static int 1865ccae0b50Seschrock zio_walk_root_step(mdb_walk_state_t *wsp) 1866ccae0b50Seschrock { 1867ccae0b50Seschrock zio_t zio; 1868ccae0b50Seschrock 1869ccae0b50Seschrock if (mdb_vread(&zio, sizeof (zio), wsp->walk_addr) == -1) { 1870ccae0b50Seschrock mdb_warn("failed to read zio_t at %p", wsp->walk_addr); 1871ccae0b50Seschrock return (WALK_ERR); 1872ccae0b50Seschrock } 1873ccae0b50Seschrock 1874ccae0b50Seschrock if (wsp->walk_data != NULL && wsp->walk_data != zio.io_spa) 1875ccae0b50Seschrock return (WALK_NEXT); 1876ccae0b50Seschrock 1877a3f829aeSBill Moore /* If the parent list is not empty, ignore */ 1878a3f829aeSBill Moore if (zio.io_parent_list.list_head.list_next != 1879a3f829aeSBill Moore &((zio_t *)wsp->walk_addr)->io_parent_list.list_head) 1880ccae0b50Seschrock return (WALK_NEXT); 1881ccae0b50Seschrock 1882ccae0b50Seschrock return (wsp->walk_callback(wsp->walk_addr, &zio, wsp->walk_cbdata)); 1883ccae0b50Seschrock } 1884ccae0b50Seschrock 188588b7b0f2SMatthew Ahrens #define NICENUM_BUFLEN 6 188688b7b0f2SMatthew Ahrens 188788b7b0f2SMatthew Ahrens static int 1888ff64c0f7SMatthew Ahrens snprintfrac(char *buf, int len, 1889ff64c0f7SMatthew Ahrens uint64_t numerator, uint64_t denom, int frac_digits) 189088b7b0f2SMatthew Ahrens { 1891ff64c0f7SMatthew Ahrens int mul = 1; 189288b7b0f2SMatthew Ahrens int whole, frac, i; 189388b7b0f2SMatthew Ahrens 189488b7b0f2SMatthew Ahrens for (i = frac_digits; i; i--) 189588b7b0f2SMatthew Ahrens mul *= 10; 1896ff64c0f7SMatthew Ahrens whole = numerator / denom; 1897ff64c0f7SMatthew Ahrens frac = mul * numerator / denom - mul * whole; 189888b7b0f2SMatthew Ahrens return (mdb_snprintf(buf, len, "%u.%0*u", whole, frac_digits, frac)); 189988b7b0f2SMatthew Ahrens } 190088b7b0f2SMatthew Ahrens 190188b7b0f2SMatthew Ahrens static void 190288b7b0f2SMatthew Ahrens mdb_nicenum(uint64_t num, char *buf) 190388b7b0f2SMatthew Ahrens { 190488b7b0f2SMatthew Ahrens uint64_t n = num; 190588b7b0f2SMatthew Ahrens int index = 0; 190688b7b0f2SMatthew Ahrens char *u; 190788b7b0f2SMatthew Ahrens 190888b7b0f2SMatthew Ahrens while (n >= 1024) { 190988b7b0f2SMatthew Ahrens n = (n + (1024 / 2)) / 1024; /* Round up or down */ 191088b7b0f2SMatthew Ahrens index++; 191188b7b0f2SMatthew Ahrens } 191288b7b0f2SMatthew Ahrens 191388b7b0f2SMatthew Ahrens u = &" \0K\0M\0G\0T\0P\0E\0"[index*2]; 191488b7b0f2SMatthew Ahrens 191588b7b0f2SMatthew Ahrens if (index == 0) { 191688b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu", 191788b7b0f2SMatthew Ahrens (u_longlong_t)n); 191888b7b0f2SMatthew Ahrens } else if (n < 10 && (num & (num - 1)) != 0) { 1919ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 1920ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 2); 192188b7b0f2SMatthew Ahrens strcat(buf, u); 192288b7b0f2SMatthew Ahrens } else if (n < 100 && (num & (num - 1)) != 0) { 1923ff64c0f7SMatthew Ahrens (void) snprintfrac(buf, NICENUM_BUFLEN, 1924ff64c0f7SMatthew Ahrens num, 1ULL << 10 * index, 1); 192588b7b0f2SMatthew Ahrens strcat(buf, u); 192688b7b0f2SMatthew Ahrens } else { 192788b7b0f2SMatthew Ahrens (void) mdb_snprintf(buf, NICENUM_BUFLEN, "%llu%s", 192888b7b0f2SMatthew Ahrens (u_longlong_t)n, u); 192988b7b0f2SMatthew Ahrens } 193088b7b0f2SMatthew Ahrens } 193188b7b0f2SMatthew Ahrens 193288b7b0f2SMatthew Ahrens /* 193388b7b0f2SMatthew Ahrens * ::zfs_blkstats 193488b7b0f2SMatthew Ahrens * 193588b7b0f2SMatthew Ahrens * -v print verbose per-level information 193688b7b0f2SMatthew Ahrens * 193788b7b0f2SMatthew Ahrens */ 193888b7b0f2SMatthew Ahrens static int 193988b7b0f2SMatthew Ahrens zfs_blkstats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 194088b7b0f2SMatthew Ahrens { 194188b7b0f2SMatthew Ahrens boolean_t verbose = B_FALSE; 194288b7b0f2SMatthew Ahrens zfs_all_blkstats_t stats; 194388b7b0f2SMatthew Ahrens dmu_object_type_t t; 194488b7b0f2SMatthew Ahrens zfs_blkstat_t *tzb; 194588b7b0f2SMatthew Ahrens uint64_t ditto; 194688b7b0f2SMatthew Ahrens dmu_object_type_info_t dmu_ot[DMU_OT_NUMTYPES + 10]; 194788b7b0f2SMatthew Ahrens /* +10 in case it grew */ 194888b7b0f2SMatthew Ahrens 194988b7b0f2SMatthew Ahrens if (mdb_readvar(&dmu_ot, "dmu_ot") == -1) { 195088b7b0f2SMatthew Ahrens mdb_warn("failed to read 'dmu_ot'"); 195188b7b0f2SMatthew Ahrens return (DCMD_ERR); 195288b7b0f2SMatthew Ahrens } 195388b7b0f2SMatthew Ahrens 195488b7b0f2SMatthew Ahrens if (mdb_getopts(argc, argv, 195588b7b0f2SMatthew Ahrens 'v', MDB_OPT_SETBITS, TRUE, &verbose, 195688b7b0f2SMatthew Ahrens NULL) != argc) 195788b7b0f2SMatthew Ahrens return (DCMD_USAGE); 195888b7b0f2SMatthew Ahrens 195988b7b0f2SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 196088b7b0f2SMatthew Ahrens return (DCMD_USAGE); 196188b7b0f2SMatthew Ahrens 196288b7b0f2SMatthew Ahrens if (GETMEMB(addr, struct spa, spa_dsl_pool, addr) || 196388b7b0f2SMatthew Ahrens GETMEMB(addr, struct dsl_pool, dp_blkstats, addr) || 196488b7b0f2SMatthew Ahrens mdb_vread(&stats, sizeof (zfs_all_blkstats_t), addr) == -1) { 196588b7b0f2SMatthew Ahrens mdb_warn("failed to read data at %p;", addr); 196688b7b0f2SMatthew Ahrens mdb_printf("maybe no stats? run \"zpool scrub\" first."); 196788b7b0f2SMatthew Ahrens return (DCMD_ERR); 196888b7b0f2SMatthew Ahrens } 196988b7b0f2SMatthew Ahrens 197088b7b0f2SMatthew Ahrens tzb = &stats.zab_type[DN_MAX_LEVELS][DMU_OT_NUMTYPES]; 197188b7b0f2SMatthew Ahrens if (tzb->zb_gangs != 0) { 197288b7b0f2SMatthew Ahrens mdb_printf("Ganged blocks: %llu\n", 197388b7b0f2SMatthew Ahrens (longlong_t)tzb->zb_gangs); 197488b7b0f2SMatthew Ahrens } 197588b7b0f2SMatthew Ahrens 197688b7b0f2SMatthew Ahrens ditto = tzb->zb_ditto_2_of_2_samevdev + tzb->zb_ditto_2_of_3_samevdev + 197788b7b0f2SMatthew Ahrens tzb->zb_ditto_3_of_3_samevdev; 197888b7b0f2SMatthew Ahrens if (ditto != 0) { 197988b7b0f2SMatthew Ahrens mdb_printf("Dittoed blocks on same vdev: %llu\n", 198088b7b0f2SMatthew Ahrens (longlong_t)ditto); 198188b7b0f2SMatthew Ahrens } 198288b7b0f2SMatthew Ahrens 198388b7b0f2SMatthew Ahrens mdb_printf("\nBlocks\tLSIZE\tPSIZE\tASIZE" 198488b7b0f2SMatthew Ahrens "\t avg\t comp\t%%Total\tType\n"); 198588b7b0f2SMatthew Ahrens 198688b7b0f2SMatthew Ahrens for (t = 0; t <= DMU_OT_NUMTYPES; t++) { 198788b7b0f2SMatthew Ahrens char csize[NICENUM_BUFLEN], lsize[NICENUM_BUFLEN]; 198888b7b0f2SMatthew Ahrens char psize[NICENUM_BUFLEN], asize[NICENUM_BUFLEN]; 198988b7b0f2SMatthew Ahrens char avg[NICENUM_BUFLEN]; 199088b7b0f2SMatthew Ahrens char comp[NICENUM_BUFLEN], pct[NICENUM_BUFLEN]; 199188b7b0f2SMatthew Ahrens char typename[64]; 199288b7b0f2SMatthew Ahrens int l; 199388b7b0f2SMatthew Ahrens 199488b7b0f2SMatthew Ahrens 199588b7b0f2SMatthew Ahrens if (t == DMU_OT_DEFERRED) 199688b7b0f2SMatthew Ahrens strcpy(typename, "deferred free"); 199788b7b0f2SMatthew Ahrens else if (t == DMU_OT_TOTAL) 199888b7b0f2SMatthew Ahrens strcpy(typename, "Total"); 199988b7b0f2SMatthew Ahrens else if (mdb_readstr(typename, sizeof (typename), 200088b7b0f2SMatthew Ahrens (uintptr_t)dmu_ot[t].ot_name) == -1) { 200188b7b0f2SMatthew Ahrens mdb_warn("failed to read type name"); 200288b7b0f2SMatthew Ahrens return (DCMD_ERR); 200388b7b0f2SMatthew Ahrens } 200488b7b0f2SMatthew Ahrens 200588b7b0f2SMatthew Ahrens if (stats.zab_type[DN_MAX_LEVELS][t].zb_asize == 0) 200688b7b0f2SMatthew Ahrens continue; 200788b7b0f2SMatthew Ahrens 200888b7b0f2SMatthew Ahrens for (l = -1; l < DN_MAX_LEVELS; l++) { 200988b7b0f2SMatthew Ahrens int level = (l == -1 ? DN_MAX_LEVELS : l); 201088b7b0f2SMatthew Ahrens zfs_blkstat_t *zb = &stats.zab_type[level][t]; 201188b7b0f2SMatthew Ahrens 201288b7b0f2SMatthew Ahrens if (zb->zb_asize == 0) 201388b7b0f2SMatthew Ahrens continue; 201488b7b0f2SMatthew Ahrens 201588b7b0f2SMatthew Ahrens /* 201688b7b0f2SMatthew Ahrens * Don't print each level unless requested. 201788b7b0f2SMatthew Ahrens */ 201888b7b0f2SMatthew Ahrens if (!verbose && level != DN_MAX_LEVELS) 201988b7b0f2SMatthew Ahrens continue; 202088b7b0f2SMatthew Ahrens 202188b7b0f2SMatthew Ahrens /* 202288b7b0f2SMatthew Ahrens * If all the space is level 0, don't print the 202388b7b0f2SMatthew Ahrens * level 0 separately. 202488b7b0f2SMatthew Ahrens */ 202588b7b0f2SMatthew Ahrens if (level == 0 && zb->zb_asize == 202688b7b0f2SMatthew Ahrens stats.zab_type[DN_MAX_LEVELS][t].zb_asize) 202788b7b0f2SMatthew Ahrens continue; 202888b7b0f2SMatthew Ahrens 202988b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_count, csize); 203088b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_lsize, lsize); 203188b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_psize, psize); 203288b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize, asize); 203388b7b0f2SMatthew Ahrens mdb_nicenum(zb->zb_asize / zb->zb_count, avg); 2034ff64c0f7SMatthew Ahrens (void) snprintfrac(comp, NICENUM_BUFLEN, 2035ff64c0f7SMatthew Ahrens zb->zb_lsize, zb->zb_psize, 2); 2036ff64c0f7SMatthew Ahrens (void) snprintfrac(pct, NICENUM_BUFLEN, 2037ff64c0f7SMatthew Ahrens 100 * zb->zb_asize, tzb->zb_asize, 2); 203888b7b0f2SMatthew Ahrens 203988b7b0f2SMatthew Ahrens mdb_printf("%6s\t%5s\t%5s\t%5s\t%5s" 204088b7b0f2SMatthew Ahrens "\t%5s\t%6s\t", 204188b7b0f2SMatthew Ahrens csize, lsize, psize, asize, avg, comp, pct); 204288b7b0f2SMatthew Ahrens 204388b7b0f2SMatthew Ahrens if (level == DN_MAX_LEVELS) 204488b7b0f2SMatthew Ahrens mdb_printf("%s\n", typename); 204588b7b0f2SMatthew Ahrens else 204688b7b0f2SMatthew Ahrens mdb_printf(" L%d %s\n", 204788b7b0f2SMatthew Ahrens level, typename); 204888b7b0f2SMatthew Ahrens } 204988b7b0f2SMatthew Ahrens } 205088b7b0f2SMatthew Ahrens 205188b7b0f2SMatthew Ahrens return (DCMD_OK); 205288b7b0f2SMatthew Ahrens } 205388b7b0f2SMatthew Ahrens 20549966ca11SMatthew Ahrens /* ARGSUSED */ 20559966ca11SMatthew Ahrens static int 20569966ca11SMatthew Ahrens reference_cb(uintptr_t addr, const void *ignored, void *arg) 20579966ca11SMatthew Ahrens { 20589966ca11SMatthew Ahrens static int gotid; 20599966ca11SMatthew Ahrens static mdb_ctf_id_t ref_id; 20609966ca11SMatthew Ahrens uintptr_t ref_holder; 20619966ca11SMatthew Ahrens uintptr_t ref_removed; 20629966ca11SMatthew Ahrens uint64_t ref_number; 20639966ca11SMatthew Ahrens boolean_t holder_is_str; 20649966ca11SMatthew Ahrens char holder_str[128]; 20659966ca11SMatthew Ahrens boolean_t removed = (boolean_t)arg; 20669966ca11SMatthew Ahrens 20679966ca11SMatthew Ahrens if (!gotid) { 20689966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct reference", &ref_id) == -1) { 20699966ca11SMatthew Ahrens mdb_warn("couldn't find struct reference"); 20709966ca11SMatthew Ahrens return (WALK_ERR); 20719966ca11SMatthew Ahrens } 20729966ca11SMatthew Ahrens gotid = TRUE; 20739966ca11SMatthew Ahrens } 20749966ca11SMatthew Ahrens 20759966ca11SMatthew Ahrens if (GETMEMBID(addr, &ref_id, ref_holder, ref_holder) || 20769966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_removed, ref_removed) || 20779966ca11SMatthew Ahrens GETMEMBID(addr, &ref_id, ref_number, ref_number)) 20789966ca11SMatthew Ahrens return (WALK_ERR); 20799966ca11SMatthew Ahrens 20809966ca11SMatthew Ahrens if (mdb_readstr(holder_str, sizeof (holder_str), ref_holder) != -1) { 20819966ca11SMatthew Ahrens char *cp; 20829966ca11SMatthew Ahrens holder_is_str = B_TRUE; 20839966ca11SMatthew Ahrens for (cp = holder_str; *cp; cp++) { 20849966ca11SMatthew Ahrens if (!isprint(*cp)) { 20859966ca11SMatthew Ahrens holder_is_str = B_FALSE; 20869966ca11SMatthew Ahrens break; 20879966ca11SMatthew Ahrens } 20889966ca11SMatthew Ahrens } 20899966ca11SMatthew Ahrens } else { 20909966ca11SMatthew Ahrens holder_is_str = B_FALSE; 20919966ca11SMatthew Ahrens } 20929966ca11SMatthew Ahrens 20939966ca11SMatthew Ahrens if (removed) 20949966ca11SMatthew Ahrens mdb_printf("removed "); 20959966ca11SMatthew Ahrens mdb_printf("reference "); 20969966ca11SMatthew Ahrens if (ref_number != 1) 20979966ca11SMatthew Ahrens mdb_printf("with count=%llu ", ref_number); 20989966ca11SMatthew Ahrens mdb_printf("with tag %p", (void*)ref_holder); 20999966ca11SMatthew Ahrens if (holder_is_str) 21009966ca11SMatthew Ahrens mdb_printf(" \"%s\"", holder_str); 21019966ca11SMatthew Ahrens mdb_printf(", held at:\n"); 21029966ca11SMatthew Ahrens 21039966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", addr, DCMD_ADDRSPEC, 0, NULL); 21049966ca11SMatthew Ahrens 21059966ca11SMatthew Ahrens if (removed) { 21069966ca11SMatthew Ahrens mdb_printf("removed at:\n"); 21079966ca11SMatthew Ahrens (void) mdb_call_dcmd("whatis", ref_removed, 21089966ca11SMatthew Ahrens DCMD_ADDRSPEC, 0, NULL); 21099966ca11SMatthew Ahrens } 21109966ca11SMatthew Ahrens 21119966ca11SMatthew Ahrens mdb_printf("\n"); 21129966ca11SMatthew Ahrens 21139966ca11SMatthew Ahrens return (WALK_NEXT); 21149966ca11SMatthew Ahrens } 21159966ca11SMatthew Ahrens 21169966ca11SMatthew Ahrens /* ARGSUSED */ 21179966ca11SMatthew Ahrens static int 21189966ca11SMatthew Ahrens refcount(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 21199966ca11SMatthew Ahrens { 21209966ca11SMatthew Ahrens uint64_t rc_count, rc_removed_count; 21219966ca11SMatthew Ahrens uintptr_t rc_list, rc_removed; 21229966ca11SMatthew Ahrens static int gotid; 21239966ca11SMatthew Ahrens static mdb_ctf_id_t rc_id; 21249966ca11SMatthew Ahrens ulong_t off; 21259966ca11SMatthew Ahrens 21269966ca11SMatthew Ahrens if (!(flags & DCMD_ADDRSPEC)) 21279966ca11SMatthew Ahrens return (DCMD_USAGE); 21289966ca11SMatthew Ahrens 21299966ca11SMatthew Ahrens if (!gotid) { 21309966ca11SMatthew Ahrens if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) { 21319966ca11SMatthew Ahrens mdb_warn("couldn't find struct refcount"); 21329966ca11SMatthew Ahrens return (DCMD_ERR); 21339966ca11SMatthew Ahrens } 21349966ca11SMatthew Ahrens gotid = TRUE; 21359966ca11SMatthew Ahrens } 21369966ca11SMatthew Ahrens 21379966ca11SMatthew Ahrens if (GETMEMBID(addr, &rc_id, rc_count, rc_count) || 21389966ca11SMatthew Ahrens GETMEMBID(addr, &rc_id, rc_removed_count, rc_removed_count)) 21399966ca11SMatthew Ahrens return (DCMD_ERR); 21409966ca11SMatthew Ahrens 21419966ca11SMatthew Ahrens mdb_printf("refcount_t at %p has %llu current holds, " 21429966ca11SMatthew Ahrens "%llu recently released holds\n", 21439966ca11SMatthew Ahrens addr, (longlong_t)rc_count, (longlong_t)rc_removed_count); 21449966ca11SMatthew Ahrens 21459966ca11SMatthew Ahrens if (rc_count > 0) 21469966ca11SMatthew Ahrens mdb_printf("current holds:\n"); 21479966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_list", &off) == -1) 21489966ca11SMatthew Ahrens return (DCMD_ERR); 21499966ca11SMatthew Ahrens rc_list = addr + off/NBBY; 21509966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_FALSE, rc_list); 21519966ca11SMatthew Ahrens 21529966ca11SMatthew Ahrens if (rc_removed_count > 0) 21539966ca11SMatthew Ahrens mdb_printf("released holds:\n"); 21549966ca11SMatthew Ahrens if (mdb_ctf_offsetof(rc_id, "rc_removed", &off) == -1) 21559966ca11SMatthew Ahrens return (DCMD_ERR); 21569966ca11SMatthew Ahrens rc_removed = addr + off/NBBY; 21579966ca11SMatthew Ahrens mdb_pwalk("list", reference_cb, (void*)B_TRUE, rc_removed); 21589966ca11SMatthew Ahrens 21599966ca11SMatthew Ahrens return (DCMD_OK); 21609966ca11SMatthew Ahrens } 21619966ca11SMatthew Ahrens 2162fa9e4066Sahrens /* 2163fa9e4066Sahrens * MDB module linkage information: 2164fa9e4066Sahrens * 2165fa9e4066Sahrens * We declare a list of structures describing our dcmds, and a function 2166fa9e4066Sahrens * named _mdb_init to return a pointer to our module information. 2167fa9e4066Sahrens */ 2168fa9e4066Sahrens 2169fa9e4066Sahrens static const mdb_dcmd_t dcmds[] = { 217091ebeef5Sahrens { "arc", "[-bkmg]", "print ARC variables", arc_print }, 2171fa9e4066Sahrens { "blkptr", ":", "print blkptr_t", blkptr }, 2172fa9e4066Sahrens { "dbuf", ":", "print dmu_buf_impl_t", dbuf }, 2173fa9e4066Sahrens { "dbuf_stats", ":", "dbuf stats", dbuf_stats }, 2174fa9e4066Sahrens { "dbufs", 2175503ad85cSMatthew Ahrens "\t[-O objset_t*] [-n objset_name | \"mos\"] " 2176a3f829aeSBill Moore "[-o object | \"mdn\"] \n" 2177a3f829aeSBill Moore "\t[-l level] [-b blkid | \"bonus\"]", 2178a3f829aeSBill Moore "find dmu_buf_impl_t's that match specified criteria", dbufs }, 2179fa9e4066Sahrens { "abuf_find", "dva_word[0] dva_word[1]", 2180a3f829aeSBill Moore "find arc_buf_hdr_t of a specified DVA", 2181a3f829aeSBill Moore abuf_find }, 2182fa9e4066Sahrens { "spa", "?[-cv]", "spa_t summary", spa_print }, 2183fa9e4066Sahrens { "spa_config", ":", "print spa_t configuration", spa_print_config }, 2184fa9e4066Sahrens { "spa_verify", ":", "verify spa_t consistency", spa_verify }, 2185fa9e4066Sahrens { "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space }, 2186fa9e4066Sahrens { "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs }, 218791ebeef5Sahrens { "vdev", ":[-re]\n" 2188a3f829aeSBill Moore "\t-r display recursively\n" 2189a3f829aeSBill Moore "\t-e print statistics", 2190a3f829aeSBill Moore "vdev_t summary", vdev_print }, 2191a3f829aeSBill Moore { "zio", ":[cpr]\n" 2192a3f829aeSBill Moore "\t-c display children\n" 2193a3f829aeSBill Moore "\t-p display parents\n" 2194a3f829aeSBill Moore "\t-r display recursively", 2195a3f829aeSBill Moore "zio_t summary", zio_print }, 2196ccae0b50Seschrock { "zio_state", "?", "print out all zio_t structures on system or " 2197ccae0b50Seschrock "for a particular pool", zio_state }, 219888b7b0f2SMatthew Ahrens { "zfs_blkstats", ":[-v]", 219988b7b0f2SMatthew Ahrens "given a spa_t, print block type stats from last scrub", 220088b7b0f2SMatthew Ahrens zfs_blkstats }, 2201614409b5Sahrens { "zfs_params", "", "print zfs tunable parameters", zfs_params }, 22029966ca11SMatthew Ahrens { "refcount", "", "print refcount_t holders", refcount }, 2203fa9e4066Sahrens { NULL } 2204fa9e4066Sahrens }; 2205fa9e4066Sahrens 2206fa9e4066Sahrens static const mdb_walker_t walkers[] = { 2207fa9e4066Sahrens /* 2208fa9e4066Sahrens * In userland, there is no generic provider of list_t walkers, so we 2209fa9e4066Sahrens * need to add it. 2210fa9e4066Sahrens */ 2211fa9e4066Sahrens #ifndef _KERNEL 2212fa9e4066Sahrens { LIST_WALK_NAME, LIST_WALK_DESC, 2213fa9e4066Sahrens list_walk_init, list_walk_step, list_walk_fini }, 2214fa9e4066Sahrens #endif 2215fa9e4066Sahrens { "zms_freelist", "walk ZFS metaslab freelist", 22165f5f7a6fSahrens freelist_walk_init, freelist_walk_step, NULL }, 2217fa9e4066Sahrens { "txg_list", "given any txg_list_t *, walk all entries in all txgs", 22185f5f7a6fSahrens txg_list_walk_init, txg_list_walk_step, NULL }, 2219fa9e4066Sahrens { "txg_list0", "given any txg_list_t *, walk all entries in txg 0", 22205f5f7a6fSahrens txg_list0_walk_init, txg_list_walk_step, NULL }, 2221fa9e4066Sahrens { "txg_list1", "given any txg_list_t *, walk all entries in txg 1", 22225f5f7a6fSahrens txg_list1_walk_init, txg_list_walk_step, NULL }, 2223fa9e4066Sahrens { "txg_list2", "given any txg_list_t *, walk all entries in txg 2", 22245f5f7a6fSahrens txg_list2_walk_init, txg_list_walk_step, NULL }, 2225fa9e4066Sahrens { "txg_list3", "given any txg_list_t *, walk all entries in txg 3", 22265f5f7a6fSahrens txg_list3_walk_init, txg_list_walk_step, NULL }, 2227ccae0b50Seschrock { "zio", "walk all zio structures, optionally for a particular spa_t", 2228ccae0b50Seschrock zio_walk_init, zio_walk_step, NULL }, 2229ccae0b50Seschrock { "zio_root", "walk all root zio_t structures, optionally for a " 2230ccae0b50Seschrock "particular spa_t", 2231ccae0b50Seschrock zio_walk_init, zio_walk_root_step, NULL }, 2232fa9e4066Sahrens { "spa", "walk all spa_t entries in the namespace", 2233fa9e4066Sahrens spa_walk_init, spa_walk_step, NULL }, 22345f5f7a6fSahrens { "metaslab", "given a spa_t *, walk all metaslab_t structures", 22355f5f7a6fSahrens metaslab_walk_init, metaslab_walk_step, NULL }, 2236fa9e4066Sahrens { NULL } 2237fa9e4066Sahrens }; 2238fa9e4066Sahrens 2239fa9e4066Sahrens static const mdb_modinfo_t modinfo = { 2240fa9e4066Sahrens MDB_API_VERSION, dcmds, walkers 2241fa9e4066Sahrens }; 2242fa9e4066Sahrens 2243fa9e4066Sahrens const mdb_modinfo_t * 2244fa9e4066Sahrens _mdb_init(void) 2245fa9e4066Sahrens { 2246fa9e4066Sahrens return (&modinfo); 2247fa9e4066Sahrens } 2248