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789
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#pragma ident "%Z%%M% %I% %E% SMI"
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#include <mdb/mdb_ctf.h>
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#include <sys/zfs_context.h>
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#include <sys/mdb_modapi.h>
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#include <sys/dbuf.h>
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#include <sys/dmu_objset.h>
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#include <sys/dsl_dir.h>
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#include <sys/dsl_pool.h>
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#include <sys/metaslab_impl.h>
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#include <sys/space_map.h>
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#include <sys/list.h>
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#include <sys/spa_impl.h>
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#include <sys/vdev_impl.h>
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#include <sys/zio_compress.h>
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#ifndef _KERNEL
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#include "../genunix/list.h"
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#endif
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#ifdef _KERNEL
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#define ZFS_OBJ_NAME "zfs"
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#else
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#define ZFS_OBJ_NAME "libzpool.so.1"
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#endif
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static char *
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local_strdup(const char *s)
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{
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char *s1 = mdb_alloc(strlen(s) + 1, UM_SLEEP);
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(void) strcpy(s1, s);
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return (s1);
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}
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static int
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getmember(uintptr_t addr, const char *type, mdb_ctf_id_t *idp,
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const char *member, int len, void *buf)
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{
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mdb_ctf_id_t id;
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ulong_t off;
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char name[64];
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if (idp == NULL) {
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if (mdb_ctf_lookup_by_name(type, &id) == -1) {
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mdb_warn("couldn't find type %s", type);
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return (DCMD_ERR);
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}
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idp = &id;
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} else {
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type = name;
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mdb_ctf_type_name(*idp, name, sizeof (name));
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}
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if (mdb_ctf_offsetof(*idp, member, &off) == -1) {
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mdb_warn("couldn't find member %s of type %s\n", member, type);
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return (DCMD_ERR);
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}
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if (off % 8 != 0) {
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mdb_warn("member %s of type %s is unsupported bitfield",
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member, type);
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return (DCMD_ERR);
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}
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off /= 8;
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if (mdb_vread(buf, len, addr + off) == -1) {
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mdb_warn("failed to read %s from %s at %p",
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member, type, addr + off);
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return (DCMD_ERR);
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}
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/* mdb_warn("read %s from %s at %p+%llx\n", member, type, addr, off); */
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return (0);
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}
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#define GETMEMB(addr, type, member, dest) \
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getmember(addr, #type, NULL, #member, sizeof (dest), &(dest))
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#define GETMEMBID(addr, ctfid, member, dest) \
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getmember(addr, NULL, ctfid, #member, sizeof (dest), &(dest))
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static int
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getrefcount(uintptr_t addr, mdb_ctf_id_t *id,
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const char *member, uint64_t *rc)
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{
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static int gotid;
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static mdb_ctf_id_t rc_id;
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ulong_t off;
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if (!gotid) {
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if (mdb_ctf_lookup_by_name("struct refcount", &rc_id) == -1) {
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mdb_warn("couldn't find struct refcount");
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return (DCMD_ERR);
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}
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gotid = TRUE;
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}
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if (mdb_ctf_offsetof(*id, member, &off) == -1) {
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char name[64];
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mdb_ctf_type_name(*id, name, sizeof (name));
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mdb_warn("couldn't find member %s of type %s\n", member, name);
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return (DCMD_ERR);
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}
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off /= 8;
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return (GETMEMBID(addr + off, &rc_id, rc_count, *rc));
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}
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static int
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read_symbol(char *sym_name, void **bufp)
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{
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GElf_Sym sym;
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if (mdb_lookup_by_obj(MDB_TGT_OBJ_EVERY, sym_name, &sym)) {
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mdb_warn("can't find symbol %s", sym_name);
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return (DCMD_ERR);
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}
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*bufp = mdb_alloc(sym.st_size, UM_SLEEP);
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if (mdb_vread(*bufp, sym.st_size, sym.st_value) == -1) {
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mdb_warn("can't read data for symbol %s", sym_name);
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mdb_free(*bufp, sym.st_size);
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return (DCMD_ERR);
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}
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return (DCMD_OK);
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}
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static int verbose;
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static int
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freelist_walk_init(mdb_walk_state_t *wsp)
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{
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if (wsp->walk_addr == NULL) {
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mdb_warn("must supply starting address\n");
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return (WALK_ERR);
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}
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wsp->walk_data = 0; /* Index into the freelist */
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return (WALK_NEXT);
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}
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static int
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freelist_walk_step(mdb_walk_state_t *wsp)
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{
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uint64_t entry;
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uintptr_t number = (uintptr_t)wsp->walk_data;
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char *ddata[] = { "ALLOC", "FREE", "CONDENSE", "INVALID" };
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int mapshift = SPA_MINBLOCKSHIFT;
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if (mdb_vread(&entry, sizeof (entry), wsp->walk_addr) == -1) {
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mdb_warn("failed to read freelist entry %p", wsp->walk_addr);
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return (WALK_DONE);
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}
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wsp->walk_addr += sizeof (entry);
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wsp->walk_data = (void *)(number + 1);
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184 |
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if (SM_DEBUG_DECODE(entry)) {
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mdb_printf("DEBUG: %3u %10s: txg=%llu pass=%llu\n",
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number,
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ddata[SM_DEBUG_ACTION_DECODE(entry)],
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SM_DEBUG_TXG_DECODE(entry),
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SM_DEBUG_SYNCPASS_DECODE(entry));
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} else {
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mdb_printf("Entry: %3u offsets=%08llx-%08llx type=%c "
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"size=%06llx", number,
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SM_OFFSET_DECODE(entry) << mapshift,
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(SM_OFFSET_DECODE(entry) + SM_RUN_DECODE(entry)) <<
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mapshift,
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SM_TYPE_DECODE(entry) == SM_ALLOC ? 'A' : 'F',
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SM_RUN_DECODE(entry) << mapshift);
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if (verbose)
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mdb_printf(" (raw=%012llx)\n", entry);
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mdb_printf("\n");
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}
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return (WALK_NEXT);
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}
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/* ARGSUSED */
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static void
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freelist_walk_fini(mdb_walk_state_t *wsp)
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{
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}
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211 |
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typedef struct dbuf_walk_data {
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dbuf_hash_table_t ht;
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int64_t bucket;
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uintptr_t dbp;
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dmu_buf_impl_t db;
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} dbuf_walk_data_t;
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218 |
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static int
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dbuf_walk_init(mdb_walk_state_t *wsp)
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{
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dbuf_walk_data_t *dwd;
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if (wsp->walk_addr != NULL) {
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mdb_warn("must supply starting address\n");
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return (WALK_ERR);
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}
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dwd = mdb_alloc(sizeof (dbuf_walk_data_t), UM_SLEEP);
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230 |
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if (mdb_readvar(&dwd->ht, "dbuf_hash_table") == -1) {
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mdb_warn("failed to read 'dbuf_hash_table'");
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mdb_free(dwd, sizeof (dbuf_walk_data_t));
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return (WALK_ERR);
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}
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dwd->bucket = -1;
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dwd->dbp = 0;
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wsp->walk_data = dwd;
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return (WALK_NEXT);
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}
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241 |
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static int
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dbuf_walk_step(mdb_walk_state_t *wsp)
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{
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int status;
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dbuf_walk_data_t *dwd = wsp->walk_data;
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247 |
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248 |
while (dwd->dbp == 0) {
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dwd->bucket++;
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if (dwd->bucket == dwd->ht.hash_table_mask+1)
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return (WALK_DONE);
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if (mdb_vread(&dwd->dbp, sizeof (void *),
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(uintptr_t)(dwd->ht.hash_table+dwd->bucket)) == -1) {
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mdb_warn("failed to read hash bucket %u at %p",
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dwd->bucket, dwd->ht.hash_table+dwd->bucket);
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return (WALK_DONE);
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}
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}
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260 |
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wsp->walk_addr = dwd->dbp;
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if (mdb_vread(&dwd->db, sizeof (dmu_buf_impl_t),
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wsp->walk_addr) == -1) {
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mdb_warn("failed to read dbuf at %p", wsp->walk_addr);
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265 |
return (WALK_DONE);
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266 |
}
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267 |
status = wsp->walk_callback(wsp->walk_addr, &dwd->db, wsp->walk_cbdata);
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268 |
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269 |
dwd->dbp = (uintptr_t)dwd->db.db_hash_next;
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270 |
return (status);
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271 |
}
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272 |
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273 |
static void
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274 |
dbuf_walk_fini(mdb_walk_state_t *wsp)
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275 |
{
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276 |
dbuf_walk_data_t *dwd = wsp->walk_data;
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mdb_free(dwd, sizeof (dbuf_walk_data_t));
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278 |
}
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279 |
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280 |
static int
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281 |
dataset_name(uintptr_t addr, char *buf)
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282 |
{
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283 |
static int gotid;
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284 |
static mdb_ctf_id_t dd_id;
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285 |
uintptr_t dd_parent;
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286 |
char dd_myname[MAXNAMELEN];
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287 |
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288 |
if (!gotid) {
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289 |
if (mdb_ctf_lookup_by_name("struct dsl_dir",
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290 |
&dd_id) == -1) {
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291 |
mdb_warn("couldn't find struct dsl_dir");
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292 |
return (DCMD_ERR);
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293 |
}
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294 |
gotid = TRUE;
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295 |
}
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296 |
if (GETMEMBID(addr, &dd_id, dd_parent, dd_parent) ||
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297 |
GETMEMBID(addr, &dd_id, dd_myname, dd_myname)) {
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298 |
return (DCMD_ERR);
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299 |
}
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300 |
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301 |
if (dd_parent) {
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302 |
if (dataset_name(dd_parent, buf))
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303 |
return (DCMD_ERR);
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304 |
strcat(buf, "/");
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305 |
}
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306 |
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307 |
if (dd_myname[0])
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308 |
strcat(buf, dd_myname);
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309 |
else
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310 |
strcat(buf, "???");
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311 |
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312 |
return (0);
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313 |
}
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314 |
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315 |
static int
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316 |
objset_name(uintptr_t addr, char *buf)
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317 |
{
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318 |
static int gotid;
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319 |
static mdb_ctf_id_t osi_id, ds_id;
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320 |
uintptr_t os_dsl_dataset;
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321 |
char ds_snapname[MAXNAMELEN];
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322 |
uintptr_t ds_dir;
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323 |
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324 |
buf[0] = '\0';
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325 |
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326 |
if (!gotid) {
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327 |
if (mdb_ctf_lookup_by_name("struct objset_impl",
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328 |
&osi_id) == -1) {
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329 |
mdb_warn("couldn't find struct objset_impl");
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330 |
return (DCMD_ERR);
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331 |
}
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332 |
if (mdb_ctf_lookup_by_name("struct dsl_dataset",
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333 |
&ds_id) == -1) {
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334 |
mdb_warn("couldn't find struct dsl_dataset");
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335 |
return (DCMD_ERR);
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|
336 |
}
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337 |
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338 |
gotid = TRUE;
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339 |
}
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340 |
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341 |
if (GETMEMBID(addr, &osi_id, os_dsl_dataset, os_dsl_dataset))
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342 |
return (DCMD_ERR);
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343 |
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344 |
if (os_dsl_dataset == 0) {
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345 |
strcat(buf, "mos");
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346 |
return (0);
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347 |
}
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348 |
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349 |
if (GETMEMBID(os_dsl_dataset, &ds_id, ds_snapname, ds_snapname) ||
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|
350 |
GETMEMBID(os_dsl_dataset, &ds_id, ds_dir, ds_dir)) {
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351 |
return (DCMD_ERR);
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|
352 |
}
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|
|
353 |
|
|
|
354 |
if (ds_dir && dataset_name(ds_dir, buf))
|
|
|
355 |
return (DCMD_ERR);
|
|
|
356 |
|
|
|
357 |
if (ds_snapname[0]) {
|
|
|
358 |
strcat(buf, "@");
|
|
|
359 |
strcat(buf, ds_snapname);
|
|
|
360 |
}
|
|
|
361 |
return (0);
|
|
|
362 |
}
|
|
|
363 |
|
|
|
364 |
static void
|
|
|
365 |
enum_lookup(char *out, size_t size, mdb_ctf_id_t id, int val,
|
|
|
366 |
const char *prefix)
|
|
|
367 |
{
|
|
|
368 |
const char *cp;
|
|
|
369 |
size_t len = strlen(prefix);
|
|
|
370 |
|
|
|
371 |
if ((cp = mdb_ctf_enum_name(id, val)) != NULL) {
|
|
|
372 |
if (strncmp(cp, prefix, len) == 0)
|
|
|
373 |
cp += len;
|
|
|
374 |
(void) strncpy(out, cp, size);
|
|
|
375 |
} else {
|
|
|
376 |
mdb_snprintf(out, size, "? (%d)", val);
|
|
|
377 |
}
|
|
|
378 |
}
|
|
|
379 |
|
|
|
380 |
/* ARGSUSED */
|
|
|
381 |
static int
|
|
|
382 |
zio_pipeline(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
383 |
{
|
|
|
384 |
mdb_ctf_id_t pipe_enum;
|
|
|
385 |
int i;
|
|
|
386 |
char stage[1024];
|
|
|
387 |
|
|
|
388 |
if (mdb_ctf_lookup_by_name("enum zio_stage", &pipe_enum) == -1) {
|
|
|
389 |
mdb_warn("Could not find enum zio_stage");
|
|
|
390 |
return (DCMD_ERR);
|
|
|
391 |
}
|
|
|
392 |
|
|
|
393 |
for (i = 0; i < 32; i++) {
|
|
|
394 |
if (addr & (1U << i)) {
|
|
|
395 |
enum_lookup(stage, sizeof (stage), pipe_enum, i,
|
|
|
396 |
"ZIO_STAGE_");
|
|
|
397 |
mdb_printf(" %s\n", stage);
|
|
|
398 |
}
|
|
|
399 |
}
|
|
|
400 |
|
|
|
401 |
return (DCMD_OK);
|
|
|
402 |
}
|
|
|
403 |
|
|
|
404 |
/* ARGSUSED */
|
|
|
405 |
static int
|
|
|
406 |
blkptr(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
407 |
{
|
|
|
408 |
blkptr_t bp;
|
|
|
409 |
dva_t *dva;
|
|
|
410 |
dmu_object_type_info_t *doti;
|
|
|
411 |
zio_compress_info_t *zct;
|
|
|
412 |
zio_checksum_info_t *zci;
|
|
|
413 |
int i;
|
|
|
414 |
char buf[MAXPATHLEN];
|
|
|
415 |
|
|
|
416 |
if (mdb_vread(&bp, sizeof (blkptr_t), addr) == -1) {
|
|
|
417 |
mdb_warn("failed to read blkptr_t");
|
|
|
418 |
return (DCMD_ERR);
|
|
|
419 |
}
|
|
|
420 |
|
|
|
421 |
if (read_symbol("dmu_ot", (void **)&doti) != DCMD_OK)
|
|
|
422 |
return (DCMD_ERR);
|
|
|
423 |
for (i = 0; i < DMU_OT_NUMTYPES; i++) {
|
|
|
424 |
mdb_readstr(buf, sizeof (buf), (uintptr_t)doti[i].ot_name);
|
|
|
425 |
doti[i].ot_name = local_strdup(buf);
|
|
|
426 |
}
|
|
|
427 |
|
|
|
428 |
if (read_symbol("zio_checksum_table", (void **)&zci) != DCMD_OK)
|
|
|
429 |
return (DCMD_ERR);
|
|
|
430 |
for (i = 0; i < ZIO_CHECKSUM_FUNCTIONS; i++) {
|
|
|
431 |
mdb_readstr(buf, sizeof (buf), (uintptr_t)zci[i].ci_name);
|
|
|
432 |
zci[i].ci_name = local_strdup(buf);
|
|
|
433 |
}
|
|
|
434 |
|
|
|
435 |
if (read_symbol("zio_compress_table", (void **)&zct) != DCMD_OK)
|
|
|
436 |
return (DCMD_ERR);
|
|
|
437 |
for (i = 0; i < ZIO_COMPRESS_FUNCTIONS; i++) {
|
|
|
438 |
mdb_readstr(buf, sizeof (buf), (uintptr_t)zct[i].ci_name);
|
|
|
439 |
zct[i].ci_name = local_strdup(buf);
|
|
|
440 |
}
|
|
|
441 |
|
|
|
442 |
for (i = 0; i < SPA_DVAS_PER_BP; i++) {
|
|
|
443 |
dva = &bp.blk_dva[i];
|
|
|
444 |
mdb_printf("DVA[%d]: vdev_id %lld / %llx\n", i,
|
|
|
445 |
DVA_GET_VDEV(dva), DVA_GET_OFFSET(dva));
|
|
|
446 |
mdb_printf("DVA[%d]: GRID: %04x\t"
|
|
|
447 |
"ASIZE: %llx\n", i, DVA_GET_GRID(dva), DVA_GET_ASIZE(dva));
|
|
|
448 |
}
|
|
|
449 |
mdb_printf("LSIZE: %-16llx\t\tPSIZE: %llx\n",
|
|
|
450 |
BP_GET_LSIZE(&bp), BP_GET_PSIZE(&bp));
|
|
|
451 |
mdb_printf("ENDIAN: %6s GANG: %-5s\tTYPE: %s\n",
|
|
|
452 |
BP_GET_BYTEORDER(&bp) ? "LITTLE" : "BIG",
|
|
|
453 |
DVA_GET_GANG(dva) ? "TRUE" : "FALSE",
|
|
|
454 |
doti[BP_GET_TYPE(&bp)].ot_name);
|
|
|
455 |
mdb_printf("BIRTH: %-16llx LEVEL: %-2d\tFILL: %llx\n",
|
|
|
456 |
bp.blk_birth, BP_GET_LEVEL(&bp), bp.blk_fill);
|
|
|
457 |
mdb_printf("CKFUNC: %-16s\t\tCOMP: %s\n",
|
|
|
458 |
zci[BP_GET_CHECKSUM(&bp)].ci_name,
|
|
|
459 |
zct[BP_GET_COMPRESS(&bp)].ci_name);
|
|
|
460 |
mdb_printf("CKSUM: %llx:%llx:%llx:%llx\n",
|
|
|
461 |
bp.blk_cksum.zc_word[0],
|
|
|
462 |
bp.blk_cksum.zc_word[1],
|
|
|
463 |
bp.blk_cksum.zc_word[2],
|
|
|
464 |
bp.blk_cksum.zc_word[3]);
|
|
|
465 |
|
|
|
466 |
return (DCMD_OK);
|
|
|
467 |
}
|
|
|
468 |
|
|
|
469 |
/* ARGSUSED */
|
|
|
470 |
static int
|
|
|
471 |
dbuf(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
472 |
{
|
|
|
473 |
mdb_ctf_id_t id;
|
|
|
474 |
dmu_buf_t db;
|
|
|
475 |
uintptr_t objset;
|
|
|
476 |
uint8_t level;
|
|
|
477 |
uint64_t blkid;
|
|
|
478 |
uint64_t holds;
|
|
|
479 |
char objectname[32];
|
|
|
480 |
char blkidname[32];
|
|
|
481 |
char path[MAXNAMELEN];
|
|
|
482 |
|
|
|
483 |
if (DCMD_HDRSPEC(flags)) {
|
|
|
484 |
mdb_printf(" addr object lvl blkid holds os\n");
|
|
|
485 |
}
|
|
|
486 |
|
|
|
487 |
if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &id) == -1) {
|
|
|
488 |
mdb_warn("couldn't find struct dmu_buf_impl_t");
|
|
|
489 |
return (DCMD_ERR);
|
|
|
490 |
}
|
|
|
491 |
|
|
|
492 |
if (GETMEMBID(addr, &id, db_objset, objset) ||
|
|
|
493 |
GETMEMBID(addr, &id, db, db) ||
|
|
|
494 |
GETMEMBID(addr, &id, db_level, level) ||
|
|
|
495 |
GETMEMBID(addr, &id, db_blkid, blkid)) {
|
|
|
496 |
return (WALK_ERR);
|
|
|
497 |
}
|
|
|
498 |
|
|
|
499 |
if (getrefcount(addr, &id, "db_holds", &holds)) {
|
|
|
500 |
return (WALK_ERR);
|
|
|
501 |
}
|
|
|
502 |
|
|
|
503 |
if (db.db_object == DMU_META_DNODE_OBJECT)
|
|
|
504 |
(void) strcpy(objectname, "mdn");
|
|
|
505 |
else
|
|
|
506 |
(void) mdb_snprintf(objectname, sizeof (objectname), "%llx",
|
|
|
507 |
(u_longlong_t)db.db_object);
|
|
|
508 |
|
|
|
509 |
if (blkid == DB_BONUS_BLKID)
|
|
|
510 |
(void) strcpy(blkidname, "bonus");
|
|
|
511 |
else
|
|
|
512 |
(void) mdb_snprintf(blkidname, sizeof (blkidname), "%llx",
|
|
|
513 |
(u_longlong_t)blkid);
|
|
|
514 |
|
|
|
515 |
if (objset_name(objset, path)) {
|
|
|
516 |
return (WALK_ERR);
|
|
|
517 |
}
|
|
|
518 |
|
|
|
519 |
mdb_printf("%p %8s %1u %9s %2llu %s\n",
|
|
|
520 |
addr, objectname, level, blkidname, holds, path);
|
|
|
521 |
|
|
|
522 |
return (DCMD_OK);
|
|
|
523 |
}
|
|
|
524 |
|
|
|
525 |
/* ARGSUSED */
|
|
|
526 |
static int
|
|
|
527 |
dbuf_stats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
528 |
{
|
|
|
529 |
#define HISTOSZ 32
|
|
|
530 |
uintptr_t dbp;
|
|
|
531 |
dmu_buf_impl_t db;
|
|
|
532 |
dbuf_hash_table_t ht;
|
|
|
533 |
uint64_t bucket, ndbufs;
|
|
|
534 |
uint64_t histo[HISTOSZ];
|
|
|
535 |
uint64_t histo2[HISTOSZ];
|
|
|
536 |
int i, maxidx;
|
|
|
537 |
|
|
|
538 |
if (mdb_readvar(&ht, "dbuf_hash_table") == -1) {
|
|
|
539 |
mdb_warn("failed to read 'dbuf_hash_table'");
|
|
|
540 |
return (DCMD_ERR);
|
|
|
541 |
}
|
|
|
542 |
|
|
|
543 |
for (i = 0; i < HISTOSZ; i++) {
|
|
|
544 |
histo[i] = 0;
|
|
|
545 |
histo2[i] = 0;
|
|
|
546 |
}
|
|
|
547 |
|
|
|
548 |
ndbufs = 0;
|
|
|
549 |
for (bucket = 0; bucket < ht.hash_table_mask+1; bucket++) {
|
|
|
550 |
int len;
|
|
|
551 |
|
|
|
552 |
if (mdb_vread(&dbp, sizeof (void *),
|
|
|
553 |
(uintptr_t)(ht.hash_table+bucket)) == -1) {
|
|
|
554 |
mdb_warn("failed to read hash bucket %u at %p",
|
|
|
555 |
bucket, ht.hash_table+bucket);
|
|
|
556 |
return (DCMD_ERR);
|
|
|
557 |
}
|
|
|
558 |
|
|
|
559 |
len = 0;
|
|
|
560 |
while (dbp != 0) {
|
|
|
561 |
if (mdb_vread(&db, sizeof (dmu_buf_impl_t),
|
|
|
562 |
dbp) == -1) {
|
|
|
563 |
mdb_warn("failed to read dbuf at %p", dbp);
|
|
|
564 |
return (DCMD_ERR);
|
|
|
565 |
}
|
|
|
566 |
dbp = (uintptr_t)db.db_hash_next;
|
|
|
567 |
for (i = MIN(len, HISTOSZ - 1); i >= 0; i--)
|
|
|
568 |
histo2[i]++;
|
|
|
569 |
len++;
|
|
|
570 |
ndbufs++;
|
|
|
571 |
}
|
|
|
572 |
|
|
|
573 |
if (len >= HISTOSZ)
|
|
|
574 |
len = HISTOSZ-1;
|
|
|
575 |
histo[len]++;
|
|
|
576 |
}
|
|
|
577 |
|
|
|
578 |
mdb_printf("hash table has %llu buckets, %llu dbufs "
|
|
|
579 |
"(avg %llu buckets/dbuf)\n",
|
|
|
580 |
ht.hash_table_mask+1, ndbufs,
|
|
|
581 |
(ht.hash_table_mask+1)/ndbufs);
|
|
|
582 |
|
|
|
583 |
mdb_printf("\n");
|
|
|
584 |
maxidx = 0;
|
|
|
585 |
for (i = 0; i < HISTOSZ; i++)
|
|
|
586 |
if (histo[i] > 0)
|
|
|
587 |
maxidx = i;
|
|
|
588 |
mdb_printf("hash chain length number of buckets\n");
|
|
|
589 |
for (i = 0; i <= maxidx; i++)
|
|
|
590 |
mdb_printf("%u %llu\n", i, histo[i]);
|
|
|
591 |
|
|
|
592 |
mdb_printf("\n");
|
|
|
593 |
maxidx = 0;
|
|
|
594 |
for (i = 0; i < HISTOSZ; i++)
|
|
|
595 |
if (histo2[i] > 0)
|
|
|
596 |
maxidx = i;
|
|
|
597 |
mdb_printf("hash chain depth number of dbufs\n");
|
|
|
598 |
for (i = 0; i <= maxidx; i++)
|
|
|
599 |
mdb_printf("%u or more %llu %llu%%\n",
|
|
|
600 |
i, histo2[i], histo2[i]*100/ndbufs);
|
|
|
601 |
|
|
|
602 |
|
|
|
603 |
return (DCMD_OK);
|
|
|
604 |
}
|
|
|
605 |
|
|
|
606 |
typedef struct dbufs_data {
|
|
|
607 |
mdb_ctf_id_t id;
|
|
|
608 |
uint64_t objset;
|
|
|
609 |
uint64_t object;
|
|
|
610 |
uint64_t level;
|
|
|
611 |
uint64_t blkid;
|
|
|
612 |
char *osname;
|
|
|
613 |
} dbufs_data_t;
|
|
|
614 |
|
|
|
615 |
#define DBUFS_UNSET (0xbaddcafedeadbeefULL)
|
|
|
616 |
|
|
|
617 |
/* ARGSUSED */
|
|
|
618 |
static int
|
|
|
619 |
dbufs_cb(uintptr_t addr, const void *unknown, void *arg)
|
|
|
620 |
{
|
|
|
621 |
dbufs_data_t *data = arg;
|
|
|
622 |
uintptr_t objset;
|
|
|
623 |
dmu_buf_t db;
|
|
|
624 |
uint8_t level;
|
|
|
625 |
uint64_t blkid;
|
|
|
626 |
char osname[MAXNAMELEN];
|
|
|
627 |
|
|
|
628 |
if (GETMEMBID(addr, &data->id, db_objset, objset) ||
|
|
|
629 |
GETMEMBID(addr, &data->id, db, db) ||
|
|
|
630 |
GETMEMBID(addr, &data->id, db_level, level) ||
|
|
|
631 |
GETMEMBID(addr, &data->id, db_blkid, blkid)) {
|
|
|
632 |
return (WALK_ERR);
|
|
|
633 |
}
|
|
|
634 |
|
|
|
635 |
if ((data->objset == DBUFS_UNSET || data->objset == objset) &&
|
|
|
636 |
(data->osname == NULL || (objset_name(objset, osname) == 0 &&
|
|
|
637 |
strcmp(data->osname, osname) == 0)) &&
|
|
|
638 |
(data->object == DBUFS_UNSET || data->object == db.db_object) &&
|
|
|
639 |
(data->level == DBUFS_UNSET || data->level == level) &&
|
|
|
640 |
(data->blkid == DBUFS_UNSET || data->blkid == blkid)) {
|
|
|
641 |
mdb_printf("%#lr\n", addr);
|
|
|
642 |
}
|
|
|
643 |
return (WALK_NEXT);
|
|
|
644 |
}
|
|
|
645 |
|
|
|
646 |
/* ARGSUSED */
|
|
|
647 |
static int
|
|
|
648 |
dbufs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
649 |
{
|
|
|
650 |
dbufs_data_t data;
|
|
|
651 |
char *object = NULL;
|
|
|
652 |
char *blkid = NULL;
|
|
|
653 |
|
|
|
654 |
data.objset = data.object = data.level = data.blkid = DBUFS_UNSET;
|
|
|
655 |
data.osname = NULL;
|
|
|
656 |
|
|
|
657 |
if (mdb_getopts(argc, argv,
|
|
|
658 |
'O', MDB_OPT_UINT64, &data.objset,
|
|
|
659 |
'n', MDB_OPT_STR, &data.osname,
|
|
|
660 |
'o', MDB_OPT_STR, &object,
|
|
|
661 |
'l', MDB_OPT_UINT64, &data.level,
|
|
|
662 |
'b', MDB_OPT_STR, &blkid) != argc) {
|
|
|
663 |
return (DCMD_USAGE);
|
|
|
664 |
}
|
|
|
665 |
|
|
|
666 |
if (object) {
|
|
|
667 |
if (strcmp(object, "mdn") == 0) {
|
|
|
668 |
data.object = DMU_META_DNODE_OBJECT;
|
|
|
669 |
} else {
|
|
|
670 |
data.object = mdb_strtoull(object);
|
|
|
671 |
}
|
|
|
672 |
}
|
|
|
673 |
|
|
|
674 |
if (blkid) {
|
|
|
675 |
if (strcmp(blkid, "bonus") == 0) {
|
|
|
676 |
data.blkid = DB_BONUS_BLKID;
|
|
|
677 |
} else {
|
|
|
678 |
data.blkid = mdb_strtoull(blkid);
|
|
|
679 |
}
|
|
|
680 |
}
|
|
|
681 |
|
|
|
682 |
if (mdb_ctf_lookup_by_name("struct dmu_buf_impl", &data.id) == -1) {
|
|
|
683 |
mdb_warn("couldn't find struct dmu_buf_impl_t");
|
|
|
684 |
return (DCMD_ERR);
|
|
|
685 |
}
|
|
|
686 |
|
|
|
687 |
if (mdb_pwalk("dbufs", dbufs_cb, &data, 0) != 0) {
|
|
|
688 |
mdb_warn("can't walk dbufs");
|
|
|
689 |
return (DCMD_ERR);
|
|
|
690 |
}
|
|
|
691 |
|
|
|
692 |
return (DCMD_OK);
|
|
|
693 |
}
|
|
|
694 |
|
|
|
695 |
typedef struct abuf_find_data {
|
|
|
696 |
dva_t dva;
|
|
|
697 |
mdb_ctf_id_t id;
|
|
|
698 |
} abuf_find_data_t;
|
|
|
699 |
|
|
|
700 |
/* ARGSUSED */
|
|
|
701 |
static int
|
|
|
702 |
abuf_find_cb(uintptr_t addr, const void *unknown, void *arg)
|
|
|
703 |
{
|
|
|
704 |
abuf_find_data_t *data = arg;
|
|
|
705 |
dva_t dva;
|
|
|
706 |
|
|
|
707 |
if (GETMEMBID(addr, &data->id, b_dva, dva)) {
|
|
|
708 |
return (WALK_ERR);
|
|
|
709 |
}
|
|
|
710 |
|
|
|
711 |
if (dva.dva_word[0] == data->dva.dva_word[0] &&
|
|
|
712 |
dva.dva_word[1] == data->dva.dva_word[1]) {
|
|
|
713 |
mdb_printf("%#lr\n", addr);
|
|
|
714 |
}
|
|
|
715 |
return (WALK_NEXT);
|
|
|
716 |
}
|
|
|
717 |
|
|
|
718 |
/* ARGSUSED */
|
|
|
719 |
static int
|
|
|
720 |
abuf_find(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
721 |
{
|
|
|
722 |
abuf_find_data_t data;
|
|
|
723 |
GElf_Sym sym;
|
|
|
724 |
int i;
|
|
|
725 |
const char *syms[] = {
|
|
|
726 |
"ARC_mru_top",
|
|
|
727 |
"ARC_mru_bot",
|
|
|
728 |
"ARC_mfu_top",
|
|
|
729 |
"ARC_mfu_bot",
|
|
|
730 |
};
|
|
|
731 |
|
|
|
732 |
if (argc != 2)
|
|
|
733 |
return (DCMD_USAGE);
|
|
|
734 |
|
|
|
735 |
for (i = 0; i < 2; i ++) {
|
|
|
736 |
switch (argv[i].a_type) {
|
|
|
737 |
case MDB_TYPE_STRING:
|
|
|
738 |
data.dva.dva_word[i] = mdb_strtoull(argv[i].a_un.a_str);
|
|
|
739 |
break;
|
|
|
740 |
case MDB_TYPE_IMMEDIATE:
|
|
|
741 |
data.dva.dva_word[i] = argv[i].a_un.a_val;
|
|
|
742 |
break;
|
|
|
743 |
default:
|
|
|
744 |
return (DCMD_USAGE);
|
|
|
745 |
}
|
|
|
746 |
}
|
|
|
747 |
|
|
|
748 |
if (mdb_ctf_lookup_by_name("struct arc_buf_hdr", &data.id) == -1) {
|
|
|
749 |
mdb_warn("couldn't find struct arc_buf_hdr");
|
|
|
750 |
return (DCMD_ERR);
|
|
|
751 |
}
|
|
|
752 |
|
|
|
753 |
for (i = 0; i < sizeof (syms) / sizeof (syms[0]); i++) {
|
|
|
754 |
if (mdb_lookup_by_name(syms[i], &sym)) {
|
|
|
755 |
mdb_warn("can't find symbol %s", syms[i]);
|
|
|
756 |
return (DCMD_ERR);
|
|
|
757 |
}
|
|
|
758 |
|
|
|
759 |
if (mdb_pwalk("list", abuf_find_cb, &data, sym.st_value) != 0) {
|
|
|
760 |
mdb_warn("can't walk %s", syms[i]);
|
|
|
761 |
return (DCMD_ERR);
|
|
|
762 |
}
|
|
|
763 |
}
|
|
|
764 |
|
|
|
765 |
return (DCMD_OK);
|
|
|
766 |
}
|
|
|
767 |
|
|
|
768 |
void
|
|
|
769 |
abuf_help(void)
|
|
|
770 |
{
|
|
|
771 |
mdb_printf("::abuf_find dva_word[0] dva_word[1]\n");
|
|
|
772 |
}
|
|
|
773 |
|
|
|
774 |
/*
|
|
|
775 |
* ::spa
|
|
|
776 |
*
|
|
|
777 |
* -c Print configuration information as well
|
|
|
778 |
* -v Print vdev state
|
|
|
779 |
* -e Print vdev error stats
|
|
|
780 |
*
|
|
|
781 |
* Print a summarized spa_t. When given no arguments, prints out a table of all
|
|
|
782 |
* active pools on the system.
|
|
|
783 |
*/
|
|
|
784 |
/* ARGSUSED */
|
|
|
785 |
static int
|
|
|
786 |
spa_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
787 |
{
|
|
|
788 |
spa_t spa;
|
|
|
789 |
char poolname[MAXNAMELEN];
|
|
|
790 |
const char *statetab[] = { "ACTIVE", "EXPORTED", "DESTROYED",
|
|
|
791 |
"UNINIT", "UNAVAIL" };
|
|
|
792 |
const char *state;
|
|
|
793 |
int config = FALSE;
|
|
|
794 |
int vdevs = FALSE;
|
|
|
795 |
int errors = FALSE;
|
|
|
796 |
|
|
|
797 |
if (mdb_getopts(argc, argv,
|
|
|
798 |
'c', MDB_OPT_SETBITS, TRUE, &config,
|
|
|
799 |
'v', MDB_OPT_SETBITS, TRUE, &vdevs,
|
|
|
800 |
'e', MDB_OPT_SETBITS, TRUE, &errors,
|
|
|
801 |
NULL) != argc)
|
|
|
802 |
return (DCMD_USAGE);
|
|
|
803 |
|
|
|
804 |
if (!(flags & DCMD_ADDRSPEC)) {
|
|
|
805 |
if (mdb_walk_dcmd("spa", "spa", argc, argv) == -1) {
|
|
|
806 |
mdb_warn("can't walk spa");
|
|
|
807 |
return (DCMD_ERR);
|
|
|
808 |
}
|
|
|
809 |
|
|
|
810 |
return (DCMD_OK);
|
|
|
811 |
}
|
|
|
812 |
|
|
|
813 |
if (flags & DCMD_PIPE_OUT) {
|
|
|
814 |
mdb_printf("%#lr\n", addr);
|
|
|
815 |
return (DCMD_OK);
|
|
|
816 |
}
|
|
|
817 |
|
|
|
818 |
if (DCMD_HDRSPEC(flags))
|
|
|
819 |
mdb_printf("%<u>%-?s %9s %-*s%</u>\n", "ADDR", "STATE",
|
|
|
820 |
sizeof (uintptr_t) == 4 ? 60 : 52, "NAME");
|
|
|
821 |
|
|
|
822 |
if (mdb_vread(&spa, sizeof (spa), addr) == -1) {
|
|
|
823 |
mdb_warn("failed to read spa_t at %p", addr);
|
|
|
824 |
return (DCMD_ERR);
|
|
|
825 |
}
|
|
|
826 |
|
|
|
827 |
if (mdb_readstr(poolname, sizeof (poolname), (uintptr_t)spa.spa_name)
|
|
|
828 |
== -1) {
|
|
|
829 |
mdb_warn("failed to read pool name at %p", spa.spa_name);
|
|
|
830 |
return (DCMD_ERR);
|
|
|
831 |
}
|
|
|
832 |
|
|
|
833 |
if (spa.spa_state < 0 || spa.spa_state > POOL_STATE_UNAVAIL)
|
|
|
834 |
state = "UKNNOWN";
|
|
|
835 |
else
|
|
|
836 |
state = statetab[spa.spa_state];
|
|
|
837 |
|
|
|
838 |
mdb_printf("%0?p %9s %s\n", addr, state, poolname);
|
|
|
839 |
|
|
|
840 |
if (config) {
|
|
|
841 |
mdb_printf("\n");
|
|
|
842 |
mdb_inc_indent(4);
|
|
|
843 |
if (mdb_call_dcmd("spa_config", addr, flags, 0,
|
|
|
844 |
NULL) != DCMD_OK)
|
|
|
845 |
return (DCMD_ERR);
|
|
|
846 |
mdb_dec_indent(4);
|
|
|
847 |
}
|
|
|
848 |
|
|
|
849 |
if (vdevs || errors) {
|
|
|
850 |
mdb_arg_t v;
|
|
|
851 |
|
|
|
852 |
v.a_type = MDB_TYPE_STRING;
|
|
|
853 |
v.a_un.a_str = "-e";
|
|
|
854 |
|
|
|
855 |
mdb_printf("\n");
|
|
|
856 |
mdb_inc_indent(4);
|
|
|
857 |
if (mdb_call_dcmd("spa_vdevs", addr, flags, errors ? 1 : 0,
|
|
|
858 |
&v) != DCMD_OK)
|
|
|
859 |
return (DCMD_ERR);
|
|
|
860 |
mdb_dec_indent(4);
|
|
|
861 |
}
|
|
|
862 |
|
|
|
863 |
return (DCMD_OK);
|
|
|
864 |
}
|
|
|
865 |
|
|
|
866 |
/*
|
|
|
867 |
* ::spa_config
|
|
|
868 |
*
|
|
|
869 |
* Given a spa_t, print the configuration information stored in spa_config.
|
|
|
870 |
* Since it's just an nvlist, format it as an indented list of name=value pairs.
|
|
|
871 |
* We simply read the value of spa_config and pass off to ::nvlist.
|
|
|
872 |
*/
|
|
|
873 |
/* ARGSUSED */
|
|
|
874 |
static int
|
|
|
875 |
spa_print_config(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
876 |
{
|
|
|
877 |
spa_t spa;
|
|
|
878 |
|
|
|
879 |
if (argc != 0 || !(flags & DCMD_ADDRSPEC))
|
|
|
880 |
return (DCMD_USAGE);
|
|
|
881 |
|
|
|
882 |
if (mdb_vread(&spa, sizeof (spa), addr) == -1) {
|
|
|
883 |
mdb_warn("failed to read spa_t at %p", addr);
|
|
|
884 |
return (DCMD_ERR);
|
|
|
885 |
}
|
|
|
886 |
|
|
|
887 |
if (spa.spa_config == NULL) {
|
|
|
888 |
mdb_printf("(none)\n");
|
|
|
889 |
return (DCMD_OK);
|
|
|
890 |
}
|
|
|
891 |
|
|
|
892 |
return (mdb_call_dcmd("nvlist", (uintptr_t)spa.spa_config, flags,
|
|
|
893 |
0, NULL));
|
|
|
894 |
}
|
|
|
895 |
|
|
|
896 |
void
|
|
|
897 |
vdev_help(void)
|
|
|
898 |
{
|
|
|
899 |
mdb_printf("[vdev_t*]::vdev [-qr]\n"
|
|
|
900 |
"\t-> -q display vdev_queue parameters\n"
|
|
|
901 |
"\t-> -r recursive (visit all children)\n");
|
|
|
902 |
}
|
|
|
903 |
|
|
|
904 |
/*
|
|
|
905 |
* ::vdev
|
|
|
906 |
*
|
|
|
907 |
* Print out a summarized vdev_t, in the following form:
|
|
|
908 |
*
|
|
|
909 |
* ADDR STATE AUX DESC
|
|
|
910 |
* fffffffbcde23df0 HEALTHY - /dev/dsk/c0t0d0
|
|
|
911 |
*
|
|
|
912 |
* or with "-q" to print out a vdev_t's vdev_queue parameters:
|
|
|
913 |
*
|
|
|
914 |
* vdev_t: c26ae4c0
|
|
|
915 |
* c26ae73c min pending 0x2
|
|
|
916 |
* c26ae744 max pending 0x23
|
|
|
917 |
* c26ae74c agg limit 0x20000
|
|
|
918 |
* c26ae754 time shift 0x4
|
|
|
919 |
* c26ae75c ramp rate 0x2
|
|
|
920 |
*
|
|
|
921 |
* If '-r' is specified, recursively visit all children.
|
|
|
922 |
*
|
|
|
923 |
* With '-e', the statistics associated with the vdev are printed as well.
|
|
|
924 |
*/
|
|
|
925 |
static int
|
|
|
926 |
do_print_vdev(uintptr_t addr, int flags, int depth, int queue, int stats,
|
|
|
927 |
int recursive)
|
|
|
928 |
{
|
|
|
929 |
vdev_t vdev;
|
|
|
930 |
char desc[MAXNAMELEN];
|
|
|
931 |
int c, children;
|
|
|
932 |
uintptr_t *child;
|
|
|
933 |
const char *state, *aux;
|
|
|
934 |
|
|
|
935 |
if (mdb_vread(&vdev, sizeof (vdev), (uintptr_t)addr) == -1) {
|
|
|
936 |
mdb_warn("failed to read vdev_t at %p\n", (uintptr_t)addr);
|
|
|
937 |
return (DCMD_ERR);
|
|
|
938 |
}
|
|
|
939 |
|
|
|
940 |
if (flags & DCMD_PIPE_OUT) {
|
|
|
941 |
mdb_printf("%#lr", addr);
|
|
|
942 |
} else {
|
|
|
943 |
if (vdev.vdev_path != NULL) {
|
|
|
944 |
if (mdb_readstr(desc, sizeof (desc),
|
|
|
945 |
(uintptr_t)vdev.vdev_path) == -1) {
|
|
|
946 |
mdb_warn("failed to read vdev_path at %p\n",
|
|
|
947 |
vdev.vdev_path);
|
|
|
948 |
return (DCMD_ERR);
|
|
|
949 |
}
|
|
|
950 |
} else if (vdev.vdev_ops != NULL) {
|
|
|
951 |
vdev_ops_t ops;
|
|
|
952 |
if (mdb_vread(&ops, sizeof (ops),
|
|
|
953 |
(uintptr_t)vdev.vdev_ops) == -1) {
|
|
|
954 |
mdb_warn("failed to read vdev_ops at %p\n",
|
|
|
955 |
vdev.vdev_ops);
|
|
|
956 |
return (DCMD_ERR);
|
|
|
957 |
}
|
|
|
958 |
(void) strcpy(desc, ops.vdev_op_type);
|
|
|
959 |
} else {
|
|
|
960 |
(void) strcpy(desc, "<unknown>");
|
|
|
961 |
}
|
|
|
962 |
|
|
|
963 |
if (depth == 0 && DCMD_HDRSPEC(flags))
|
|
|
964 |
mdb_printf("%<u>%-?s %-9s %-12s %-*s%</u>\n",
|
|
|
965 |
"ADDR", "STATE", "AUX",
|
|
|
966 |
sizeof (uintptr_t) == 4 ? 43 : 35,
|
|
|
967 |
"DESCRIPTION");
|
|
|
968 |
|
|
|
969 |
mdb_printf("%0?p ", addr);
|
|
|
970 |
|
|
|
971 |
switch (vdev.vdev_state) {
|
|
|
972 |
case VDEV_STATE_CLOSED:
|
|
|
973 |
state = "CLOSED";
|
|
|
974 |
break;
|
|
|
975 |
case VDEV_STATE_OFFLINE:
|
|
|
976 |
state = "OFFLINE";
|
|
|
977 |
break;
|
|
|
978 |
case VDEV_STATE_CANT_OPEN:
|
|
|
979 |
state = "CANT_OPEN";
|
|
|
980 |
break;
|
|
|
981 |
case VDEV_STATE_DEGRADED:
|
|
|
982 |
state = "DEGRADED";
|
|
|
983 |
break;
|
|
|
984 |
case VDEV_STATE_HEALTHY:
|
|
|
985 |
state = "HEALTHY";
|
|
|
986 |
break;
|
|
|
987 |
default:
|
|
|
988 |
state = "UNKNOWN";
|
|
|
989 |
break;
|
|
|
990 |
}
|
|
|
991 |
|
|
|
992 |
switch (vdev.vdev_stat.vs_aux) {
|
|
|
993 |
case VDEV_AUX_NONE:
|
|
|
994 |
aux = "-";
|
|
|
995 |
break;
|
|
|
996 |
case VDEV_AUX_OPEN_FAILED:
|
|
|
997 |
aux = "OPEN_FAILED";
|
|
|
998 |
break;
|
|
|
999 |
case VDEV_AUX_CORRUPT_DATA:
|
|
|
1000 |
aux = "CORRUPT_DATA";
|
|
|
1001 |
break;
|
|
|
1002 |
case VDEV_AUX_NO_REPLICAS:
|
|
|
1003 |
aux = "NO_REPLICAS";
|
|
|
1004 |
break;
|
|
|
1005 |
case VDEV_AUX_BAD_GUID_SUM:
|
|
|
1006 |
aux = "BAD_GUID_SUM";
|
|
|
1007 |
break;
|
|
|
1008 |
case VDEV_AUX_TOO_SMALL:
|
|
|
1009 |
aux = "TOO_SMALL";
|
|
|
1010 |
break;
|
|
|
1011 |
case VDEV_AUX_BAD_LABEL:
|
|
|
1012 |
aux = "BAD_LABEL";
|
|
|
1013 |
break;
|
|
|
1014 |
default:
|
|
|
1015 |
aux = "UNKNOWN";
|
|
|
1016 |
break;
|
|
|
1017 |
}
|
|
|
1018 |
|
|
|
1019 |
mdb_printf("%-9s %-12s %*s%s\n", state, aux, depth, "", desc);
|
|
|
1020 |
|
|
|
1021 |
if (queue) {
|
|
|
1022 |
mdb_inc_indent(4);
|
|
|
1023 |
mdb_printf("\n");
|
|
|
1024 |
mdb_printf("%p min pending 0x%llx\n",
|
|
|
1025 |
(uintptr_t)(addr + offsetof(vdev_t,
|
|
|
1026 |
vdev_queue.vq_min_pending)),
|
|
|
1027 |
vdev.vdev_queue.vq_min_pending);
|
|
|
1028 |
mdb_printf("%p max pending 0x%llx\n",
|
|
|
1029 |
(uintptr_t)(addr + offsetof(vdev_t,
|
|
|
1030 |
vdev_queue.vq_max_pending)),
|
|
|
1031 |
vdev.vdev_queue.vq_max_pending);
|
|
|
1032 |
mdb_printf("%p agg limit 0x%llx\n",
|
|
|
1033 |
(uintptr_t)(addr + offsetof(vdev_t,
|
|
|
1034 |
vdev_queue.vq_agg_limit)),
|
|
|
1035 |
vdev.vdev_queue.vq_agg_limit);
|
|
|
1036 |
mdb_printf("%p time shift 0x%llx\n",
|
|
|
1037 |
(uintptr_t)(addr + offsetof(vdev_t,
|
|
|
1038 |
vdev_queue.vq_time_shift)),
|
|
|
1039 |
vdev.vdev_queue.vq_time_shift);
|
|
|
1040 |
mdb_printf("%p ramp rate 0x%llx\n",
|
|
|
1041 |
(uintptr_t)(addr + offsetof(vdev_t,
|
|
|
1042 |
vdev_queue.vq_ramp_rate)),
|
|
|
1043 |
vdev.vdev_queue.vq_ramp_rate);
|
|
|
1044 |
mdb_dec_indent(4);
|
|
|
1045 |
}
|
|
|
1046 |
|
|
|
1047 |
if (stats) {
|
|
|
1048 |
vdev_stat_t *vs = &vdev.vdev_stat;
|
|
|
1049 |
int i;
|
|
|
1050 |
|
|
|
1051 |
mdb_inc_indent(4);
|
|
|
1052 |
mdb_printf("\n");
|
|
|
1053 |
mdb_printf("%<u> %12s %12s %12s %12s "
|
|
|
1054 |
"%12s%</u>\n", "READ", "WRITE", "FREE", "CLAIM",
|
|
|
1055 |
"IOCTL");
|
|
|
1056 |
mdb_printf("OPS ");
|
|
|
1057 |
for (i = 1; i < ZIO_TYPES; i++)
|
|
|
1058 |
mdb_printf("%11#llx%s", vs->vs_ops[i],
|
|
|
1059 |
i == ZIO_TYPES - 1 ? "" : " ");
|
|
|
1060 |
mdb_printf("\n");
|
|
|
1061 |
mdb_printf("BYTES ");
|
|
|
1062 |
for (i = 1; i < ZIO_TYPES; i++)
|
|
|
1063 |
mdb_printf("%11#llx%s", vs->vs_bytes[i],
|
|
|
1064 |
i == ZIO_TYPES - 1 ? "" : " ");
|
|
|
1065 |
|
|
|
1066 |
|
|
|
1067 |
mdb_printf("\n");
|
|
|
1068 |
mdb_printf("EREAD %10#llx\n", vs->vs_read_errors);
|
|
|
1069 |
mdb_printf("EWRITE %10#llx\n", vs->vs_write_errors);
|
|
|
1070 |
mdb_printf("ECKSUM %10#llx\n",
|
|
|
1071 |
vs->vs_checksum_errors);
|
|
|
1072 |
mdb_dec_indent(4);
|
|
|
1073 |
}
|
|
|
1074 |
|
|
|
1075 |
if (queue || stats)
|
|
|
1076 |
mdb_printf("\n");
|
|
|
1077 |
}
|
|
|
1078 |
|
|
|
1079 |
children = vdev.vdev_children;
|
|
|
1080 |
|
|
|
1081 |
if (children == 0 || !recursive)
|
|
|
1082 |
return (DCMD_OK);
|
|
|
1083 |
|
|
|
1084 |
child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC);
|
|
|
1085 |
if (mdb_vread(child, children * sizeof (void *),
|
|
|
1086 |
(uintptr_t)vdev.vdev_child) == -1) {
|
|
|
1087 |
mdb_warn("failed to read vdev children at %p", vdev.vdev_child);
|
|
|
1088 |
return (DCMD_ERR);
|
|
|
1089 |
}
|
|
|
1090 |
|
|
|
1091 |
for (c = 0; c < children; c++) {
|
|
|
1092 |
if (do_print_vdev(child[c], flags, depth + 2, queue, stats,
|
|
|
1093 |
recursive))
|
|
|
1094 |
return (DCMD_ERR);
|
|
|
1095 |
}
|
|
|
1096 |
|
|
|
1097 |
return (DCMD_OK);
|
|
|
1098 |
}
|
|
|
1099 |
|
|
|
1100 |
static int
|
|
|
1101 |
vdev_print(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
1102 |
{
|
|
|
1103 |
int print_queue = FALSE;
|
|
|
1104 |
int recursive = FALSE;
|
|
|
1105 |
int stats = FALSE;
|
|
|
1106 |
|
|
|
1107 |
if (mdb_getopts(argc, argv,
|
|
|
1108 |
'q', MDB_OPT_SETBITS, TRUE, &print_queue,
|
|
|
1109 |
'r', MDB_OPT_SETBITS, TRUE, &recursive,
|
|
|
1110 |
'e', MDB_OPT_SETBITS, TRUE, &stats,
|
|
|
1111 |
NULL) != argc)
|
|
|
1112 |
return (DCMD_USAGE);
|
|
|
1113 |
|
|
|
1114 |
if (!(flags & DCMD_ADDRSPEC)) {
|
|
|
1115 |
mdb_warn("no vdev_t address given\n");
|
|
|
1116 |
return (DCMD_ERR);
|
|
|
1117 |
}
|
|
|
1118 |
|
|
|
1119 |
return (do_print_vdev(addr, flags, 0, print_queue, stats, recursive));
|
|
|
1120 |
}
|
|
|
1121 |
|
|
|
1122 |
typedef struct mdb_spa {
|
|
|
1123 |
uintptr_t spa_dsl_pool;
|
|
|
1124 |
uintptr_t spa_root_vdev;
|
|
|
1125 |
} mdb_spa_t;
|
|
|
1126 |
|
|
|
1127 |
typedef struct mdb_dsl_dir {
|
|
|
1128 |
uintptr_t dd_phys;
|
|
|
1129 |
uint64_t dd_used_bytes;
|
|
|
1130 |
int64_t dd_space_towrite[TXG_SIZE];
|
|
|
1131 |
} mdb_dsl_dir_t;
|
|
|
1132 |
|
|
|
1133 |
typedef struct mdb_dsl_dir_phys {
|
|
|
1134 |
uint64_t dd_used_bytes;
|
|
|
1135 |
uint64_t dd_compressed_bytes;
|
|
|
1136 |
uint64_t dd_uncompressed_bytes;
|
|
|
1137 |
} mdb_dsl_dir_phys_t;
|
|
|
1138 |
|
|
|
1139 |
typedef struct mdb_vdev {
|
|
|
1140 |
uintptr_t vdev_parent;
|
|
|
1141 |
uintptr_t vdev_ms;
|
|
|
1142 |
uint64_t vdev_ms_count;
|
|
|
1143 |
vdev_stat_t vdev_stat;
|
|
|
1144 |
} mdb_vdev_t;
|
|
|
1145 |
|
|
|
1146 |
typedef struct mdb_metaslab {
|
|
|
1147 |
space_map_t ms_allocmap[TXG_SIZE];
|
|
|
1148 |
space_map_t ms_freemap[TXG_SIZE];
|
|
|
1149 |
space_map_t ms_map;
|
|
|
1150 |
uint64_t ms_usable_space;
|
|
|
1151 |
} mdb_metaslab_t;
|
|
|
1152 |
|
|
|
1153 |
/*
|
|
|
1154 |
* ::spa_space [-b]
|
|
|
1155 |
*
|
|
|
1156 |
* Given a spa_t, print out it's on-disk space usage and in-core
|
|
|
1157 |
* estimates of future usage. If -b is given, print space in bytes.
|
|
|
1158 |
* Otherwise print in megabytes.
|
|
|
1159 |
*/
|
|
|
1160 |
/* ARGSUSED */
|
|
|
1161 |
static int
|
|
|
1162 |
spa_space(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
1163 |
{
|
|
|
1164 |
mdb_spa_t spa;
|
|
|
1165 |
uintptr_t dp_root_dir;
|
|
|
1166 |
mdb_dsl_dir_t dd;
|
|
|
1167 |
mdb_dsl_dir_phys_t dsp;
|
|
|
1168 |
uint64_t children;
|
|
|
1169 |
uintptr_t childaddr;
|
|
|
1170 |
uintptr_t *child;
|
|
|
1171 |
uint64_t ms_allocmap[TXG_SIZE] = {0, 0, 0, 0};
|
|
|
1172 |
uint64_t ms_freemap[TXG_SIZE] = {0, 0, 0, 0};
|
|
|
1173 |
uint64_t ms_map = 0;
|
|
|
1174 |
uint64_t ms_usable_space = 0;
|
|
|
1175 |
int i, j;
|
|
|
1176 |
int havecompressed = TRUE;
|
|
|
1177 |
int shift = 20;
|
|
|
1178 |
char *suffix = "M";
|
|
|
1179 |
int bits = FALSE;
|
|
|
1180 |
|
|
|
1181 |
if (mdb_getopts(argc, argv, 'b', MDB_OPT_SETBITS, TRUE, &bits, NULL) !=
|
|
|
1182 |
argc)
|
|
|
1183 |
return (DCMD_USAGE);
|
|
|
1184 |
if (!(flags & DCMD_ADDRSPEC))
|
|
|
1185 |
return (DCMD_USAGE);
|
|
|
1186 |
|
|
|
1187 |
if (bits) {
|
|
|
1188 |
shift = 0;
|
|
|
1189 |
suffix = "";
|
|
|
1190 |
}
|
|
|
1191 |
|
|
|
1192 |
if (GETMEMB(addr, struct spa, spa_dsl_pool, spa.spa_dsl_pool) ||
|
|
|
1193 |
GETMEMB(addr, struct spa, spa_root_vdev, spa.spa_root_vdev) ||
|
|
|
1194 |
GETMEMB(spa.spa_root_vdev, struct vdev, vdev_children, children) ||
|
|
|
1195 |
GETMEMB(spa.spa_root_vdev, struct vdev, vdev_child, childaddr) ||
|
|
|
1196 |
GETMEMB(spa.spa_dsl_pool, struct dsl_pool,
|
|
|
1197 |
dp_root_dir, dp_root_dir) ||
|
|
|
1198 |
GETMEMB(dp_root_dir, struct dsl_dir, dd_phys, dd.dd_phys) ||
|
|
|
1199 |
GETMEMB(dp_root_dir, struct dsl_dir,
|
|
|
1200 |
dd_used_bytes, dd.dd_used_bytes) ||
|
|
|
1201 |
GETMEMB(dp_root_dir, struct dsl_dir,
|
|
|
1202 |
dd_space_towrite, dd.dd_space_towrite) ||
|
|
|
1203 |
GETMEMB(dd.dd_phys, struct dsl_dir_phys,
|
|
|
1204 |
dd_used_bytes, dsp.dd_used_bytes)) {
|
|
|
1205 |
return (DCMD_ERR);
|
|
|
1206 |
}
|
|
|
1207 |
|
|
|
1208 |
if (GETMEMB(dd.dd_phys, struct dsl_dir_phys,
|
|
|
1209 |
dd_compressed_bytes, dsp.dd_compressed_bytes) ||
|
|
|
1210 |
GETMEMB(dd.dd_phys, struct dsl_dir_phys,
|
|
|
1211 |
dd_uncompressed_bytes, dsp.dd_uncompressed_bytes)) {
|
|
|
1212 |
havecompressed = FALSE;
|
|
|
1213 |
}
|
|
|
1214 |
|
|
|
1215 |
child = mdb_alloc(children * sizeof (void *), UM_SLEEP | UM_GC);
|
|
|
1216 |
if (mdb_vread(child, children * sizeof (void *), childaddr) == -1) {
|
|
|
1217 |
mdb_warn("failed to read root vdev children at %p", childaddr);
|
|
|
1218 |
return (DCMD_ERR);
|
|
|
1219 |
}
|
|
|
1220 |
|
|
|
1221 |
mdb_printf("dd_space_towrite = %llu%s %llu%s %llu%s %llu%s\n",
|
|
|
1222 |
dd.dd_space_towrite[0] >> shift, suffix,
|
|
|
1223 |
dd.dd_space_towrite[1] >> shift, suffix,
|
|
|
1224 |
dd.dd_space_towrite[2] >> shift, suffix,
|
|
|
1225 |
dd.dd_space_towrite[3] >> shift, suffix);
|
|
|
1226 |
mdb_printf("dd_used_bytes = %llu%s\n",
|
|
|
1227 |
dd.dd_used_bytes >> shift, suffix);
|
|
|
1228 |
|
|
|
1229 |
mdb_printf("dd_phys.dd_used_bytes = %llu%s\n",
|
|
|
1230 |
dsp.dd_used_bytes >> shift, suffix);
|
|
|
1231 |
if (havecompressed) {
|
|
|
1232 |
mdb_printf("dd_phys.dd_compressed_bytes = %llu%s\n",
|
|
|
1233 |
dsp.dd_compressed_bytes >> shift, suffix);
|
|
|
1234 |
mdb_printf("dd_phys.dd_uncompressed_bytes = %llu%s\n",
|
|
|
1235 |
dsp.dd_uncompressed_bytes >> shift, suffix);
|
|
|
1236 |
}
|
|
|
1237 |
|
|
|
1238 |
for (i = 0; i < children; i++) {
|
|
|
1239 |
mdb_vdev_t vd;
|
|
|
1240 |
uintptr_t *vdev_ms;
|
|
|
1241 |
|
|
|
1242 |
if (GETMEMB(child[i], struct vdev,
|
|
|
1243 |
vdev_parent, vd.vdev_parent) ||
|
|
|
1244 |
GETMEMB(child[i], struct vdev,
|
|
|
1245 |
vdev_stat, vd.vdev_stat) ||
|
|
|
1246 |
GETMEMB(child[i], struct vdev, vdev_ms, vd.vdev_ms) ||
|
|
|
1247 |
GETMEMB(child[i], struct vdev,
|
|
|
1248 |
vdev_ms_count, vd.vdev_ms_count)) {
|
|
|
1249 |
return (DCMD_ERR);
|
|
|
1250 |
}
|
|
|
1251 |
|
|
|
1252 |
/*
|
|
|
1253 |
* If this is the root vdev, its stats are the pool-wide stats.
|
|
|
1254 |
*/
|
|
|
1255 |
if (vd.vdev_parent == NULL) {
|
|
|
1256 |
mdb_printf("pool_alloc = %llu%s\n",
|
|
|
1257 |
vd.vdev_stat.vs_alloc >> shift, suffix);
|
|
|
1258 |
mdb_printf("pool_space = %llu%s\n",
|
|
|
1259 |
vd.vdev_stat.vs_space >> shift, suffix);
|
|
|
1260 |
}
|
|
|
1261 |
|
|
|
1262 |
/*
|
|
|
1263 |
* If this is not a top-level vdev, it doesn't have space.
|
|
|
1264 |
*/
|
|
|
1265 |
if (vd.vdev_parent != spa.spa_root_vdev)
|
|
|
1266 |
continue;
|
|
|
1267 |
|
|
|
1268 |
vdev_ms = mdb_alloc(vd.vdev_ms_count * sizeof (void*),
|
|
|
1269 |
UM_SLEEP | UM_GC);
|
|
|
1270 |
if (mdb_vread(vdev_ms, vd.vdev_ms_count * sizeof (void*),
|
|
|
1271 |
(uintptr_t)vd.vdev_ms) == -1) {
|
|
|
1272 |
mdb_warn("failed to read vdev_ms at %p", vd.vdev_ms);
|
|
|
1273 |
return (DCMD_ERR);
|
|
|
1274 |
}
|
|
|
1275 |
|
|
|
1276 |
for (j = 0; j < vd.vdev_ms_count; j++) {
|
|
|
1277 |
mdb_metaslab_t ms;
|
|
|
1278 |
|
|
|
1279 |
if (GETMEMB(vdev_ms[j], struct metaslab,
|
|
|
1280 |
ms_allocmap, ms.ms_allocmap) ||
|
|
|
1281 |
GETMEMB(vdev_ms[j], struct metaslab,
|
|
|
1282 |
ms_freemap, ms.ms_freemap) ||
|
|
|
1283 |
GETMEMB(vdev_ms[j], struct metaslab,
|
|
|
1284 |
ms_map, ms.ms_map) ||
|
|
|
1285 |
GETMEMB(vdev_ms[j], struct metaslab,
|
|
|
1286 |
ms_usable_space, ms.ms_usable_space)) {
|
|
|
1287 |
return (DCMD_ERR);
|
|
|
1288 |
}
|
|
|
1289 |
|
|
|
1290 |
ms_allocmap[0] += ms.ms_allocmap[0].sm_space;
|
|
|
1291 |
ms_allocmap[1] += ms.ms_allocmap[1].sm_space;
|
|
|
1292 |
ms_allocmap[2] += ms.ms_allocmap[2].sm_space;
|
|
|
1293 |
ms_allocmap[3] += ms.ms_allocmap[3].sm_space;
|
|
|
1294 |
ms_freemap[0] += ms.ms_freemap[0].sm_space;
|
|
|
1295 |
ms_freemap[1] += ms.ms_freemap[1].sm_space;
|
|
|
1296 |
ms_freemap[2] += ms.ms_freemap[2].sm_space;
|
|
|
1297 |
ms_freemap[3] += ms.ms_freemap[3].sm_space;
|
|
|
1298 |
ms_map += ms.ms_map.sm_space;
|
|
|
1299 |
ms_usable_space += ms.ms_usable_space;
|
|
|
1300 |
}
|
|
|
1301 |
}
|
|
|
1302 |
|
|
|
1303 |
mdb_printf("ms_allocmap = %llu%s %llu%s %llu%s %llu%s\n",
|
|
|
1304 |
ms_allocmap[0] >> shift, suffix,
|
|
|
1305 |
ms_allocmap[1] >> shift, suffix,
|
|
|
1306 |
ms_allocmap[2] >> shift, suffix,
|
|
|
1307 |
ms_allocmap[3] >> shift, suffix);
|
|
|
1308 |
mdb_printf("ms_freemap = %llu%s %llu%s %llu%s %llu%s\n",
|
|
|
1309 |
ms_freemap[0] >> shift, suffix,
|
|
|
1310 |
ms_freemap[1] >> shift, suffix,
|
|
|
1311 |
ms_freemap[2] >> shift, suffix,
|
|
|
1312 |
ms_freemap[3] >> shift, suffix);
|
|
|
1313 |
mdb_printf("ms_map = %llu%s\n", ms_map >> shift, suffix);
|
|
|
1314 |
mdb_printf("ms_usable_space = %llu%s\n",
|
|
|
1315 |
ms_usable_space >> shift, suffix);
|
|
|
1316 |
|
|
|
1317 |
return (DCMD_OK);
|
|
|
1318 |
}
|
|
|
1319 |
|
|
|
1320 |
/*
|
|
|
1321 |
* ::spa_verify
|
|
|
1322 |
*
|
|
|
1323 |
* Given a spa_t, verify that that the pool is self-consistent.
|
|
|
1324 |
* Currently, it only checks to make sure that the vdev tree exists.
|
|
|
1325 |
*/
|
|
|
1326 |
/* ARGSUSED */
|
|
|
1327 |
static int
|
|
|
1328 |
spa_verify(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
1329 |
{
|
|
|
1330 |
spa_t spa;
|
|
|
1331 |
|
|
|
1332 |
if (argc != 0 || !(flags & DCMD_ADDRSPEC))
|
|
|
1333 |
return (DCMD_USAGE);
|
|
|
1334 |
|
|
|
1335 |
if (mdb_vread(&spa, sizeof (spa), addr) == -1) {
|
|
|
1336 |
mdb_warn("failed to read spa_t at %p", addr);
|
|
|
1337 |
return (DCMD_ERR);
|
|
|
1338 |
}
|
|
|
1339 |
|
|
|
1340 |
if (spa.spa_root_vdev == NULL) {
|
|
|
1341 |
mdb_printf("no vdev tree present\n");
|
|
|
1342 |
return (DCMD_OK);
|
|
|
1343 |
}
|
|
|
1344 |
|
|
|
1345 |
return (DCMD_OK);
|
|
|
1346 |
}
|
|
|
1347 |
|
|
|
1348 |
/*
|
|
|
1349 |
* ::spa_vdevs
|
|
|
1350 |
*
|
|
|
1351 |
* -e Include error stats
|
|
|
1352 |
*
|
|
|
1353 |
* Print out a summarized list of vdevs for the given spa_t.
|
|
|
1354 |
* This is accomplished by invoking "::vdev -re" on the root vdev.
|
|
|
1355 |
*/
|
|
|
1356 |
/* ARGSUSED */
|
|
|
1357 |
static int
|
|
|
1358 |
spa_vdevs(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv)
|
|
|
1359 |
{
|
|
|
1360 |
spa_t spa;
|
|
|
1361 |
mdb_arg_t v;
|
|
|
1362 |
int errors = FALSE;
|
|
|
1363 |
|
|
|
1364 |
if (mdb_getopts(argc, argv,
|
|
|
1365 |
'e', MDB_OPT_SETBITS, TRUE, &errors,
|
|
|
1366 |
NULL) != argc)
|
|
|
1367 |
return (DCMD_USAGE);
|
|
|
1368 |
|
|
|
1369 |
if (!(flags & DCMD_ADDRSPEC))
|
|
|
1370 |
return (DCMD_USAGE);
|
|
|
1371 |
|
|
|
1372 |
if (mdb_vread(&spa, sizeof (spa), addr) == -1) {
|
|
|
1373 |
mdb_warn("failed to read spa_t at %p", addr);
|
|
|
1374 |
return (DCMD_ERR);
|
|
|
1375 |
}
|
|
|
1376 |
|
|
|
1377 |
v.a_type = MDB_TYPE_STRING;
|
|
|
1378 |
v.a_un.a_str = errors ? "-re" : "-r";
|
|
|
1379 |
|
|
|
1380 |
return (mdb_call_dcmd("vdev", (uintptr_t)spa.spa_root_vdev,
|
|
|
1381 |
flags, 1, &v));
|
|
|
1382 |
}
|
|
|
1383 |
|
|
|
1384 |
typedef struct txg_list_walk_data {
|
|
|
1385 |
uintptr_t lw_head[TXG_SIZE];
|
|
|
1386 |
int lw_txgoff;
|
|
|
1387 |
int lw_maxoff;
|
|
|
1388 |
size_t lw_offset;
|
|
|
1389 |
void *lw_obj;
|
|
|
1390 |
} txg_list_walk_data_t;
|
|
|
1391 |
|
|
|
1392 |
static int
|
|
|
1393 |
txg_list_walk_init_common(mdb_walk_state_t *wsp, int txg, int maxoff)
|
|
|
1394 |
{
|
|
|
1395 |
txg_list_walk_data_t *lwd;
|
|
|
1396 |
txg_list_t list;
|
|
|
1397 |
int i;
|
|
|
1398 |
|
|
|
1399 |
lwd = mdb_alloc(sizeof (txg_list_walk_data_t), UM_SLEEP | UM_GC);
|
|
|
1400 |
if (mdb_vread(&list, sizeof (txg_list_t), wsp->walk_addr) == -1) {
|
|
|
1401 |
mdb_warn("failed to read txg_list_t at %#lx", wsp->walk_addr);
|
|
|
1402 |
return (WALK_ERR);
|
|
|
1403 |
}
|
|
|
1404 |
|
|
|
1405 |
for (i = 0; i < TXG_SIZE; i++)
|
|
|
1406 |
lwd->lw_head[i] = (uintptr_t)list.tl_head[i];
|
|
|
1407 |
lwd->lw_offset = list.tl_offset;
|
|
|
1408 |
lwd->lw_obj = mdb_alloc(lwd->lw_offset + sizeof (txg_node_t),
|
|
|
1409 |
UM_SLEEP | UM_GC);
|
|
|
1410 |
lwd->lw_txgoff = txg;
|
|
|
1411 |
lwd->lw_maxoff = maxoff;
|
|
|
1412 |
|
|
|
1413 |
wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff];
|
|
|
1414 |
wsp->walk_data = lwd;
|
|
|
1415 |
|
|
|
1416 |
return (WALK_NEXT);
|
|
|
1417 |
}
|
|
|
1418 |
|
|
|
1419 |
static int
|
|
|
1420 |
txg_list_walk_init(mdb_walk_state_t *wsp)
|
|
|
1421 |
{
|
|
|
1422 |
return (txg_list_walk_init_common(wsp, 0, TXG_SIZE-1));
|
|
|
1423 |
}
|
|
|
1424 |
|
|
|
1425 |
static int
|
|
|
1426 |
txg_list0_walk_init(mdb_walk_state_t *wsp)
|
|
|
1427 |
{
|
|
|
1428 |
return (txg_list_walk_init_common(wsp, 0, 0));
|
|
|
1429 |
}
|
|
|
1430 |
|
|
|
1431 |
static int
|
|
|
1432 |
txg_list1_walk_init(mdb_walk_state_t *wsp)
|
|
|
1433 |
{
|
|
|
1434 |
return (txg_list_walk_init_common(wsp, 1, 1));
|
|
|
1435 |
}
|
|
|
1436 |
|
|
|
1437 |
static int
|
|
|
1438 |
txg_list2_walk_init(mdb_walk_state_t *wsp)
|
|
|
1439 |
{
|
|
|
1440 |
return (txg_list_walk_init_common(wsp, 2, 2));
|
|
|
1441 |
}
|
|
|
1442 |
|
|
|
1443 |
static int
|
|
|
1444 |
txg_list3_walk_init(mdb_walk_state_t *wsp)
|
|
|
1445 |
{
|
|
|
1446 |
return (txg_list_walk_init_common(wsp, 3, 3));
|
|
|
1447 |
}
|
|
|
1448 |
|
|
|
1449 |
static int
|
|
|
1450 |
txg_list_walk_step(mdb_walk_state_t *wsp)
|
|
|
1451 |
{
|
|
|
1452 |
txg_list_walk_data_t *lwd = wsp->walk_data;
|
|
|
1453 |
uintptr_t addr;
|
|
|
1454 |
txg_node_t *node;
|
|
|
1455 |
int status;
|
|
|
1456 |
|
|
|
1457 |
while (wsp->walk_addr == NULL && lwd->lw_txgoff < lwd->lw_maxoff) {
|
|
|
1458 |
lwd->lw_txgoff++;
|
|
|
1459 |
wsp->walk_addr = lwd->lw_head[lwd->lw_txgoff];
|
|
|
1460 |
}
|
|
|
1461 |
|
|
|
1462 |
if (wsp->walk_addr == NULL)
|
|
|
1463 |
return (WALK_DONE);
|
|
|
1464 |
|
|
|
1465 |
addr = wsp->walk_addr - lwd->lw_offset;
|
|
|
1466 |
|
|
|
1467 |
if (mdb_vread(lwd->lw_obj,
|
|
|
1468 |
lwd->lw_offset + sizeof (txg_node_t), addr) == -1) {
|
|
|
1469 |
mdb_warn("failed to read list element at %#lx", addr);
|
|
|
1470 |
return (WALK_ERR);
|
|
|
1471 |
}
|
|
|
1472 |
|
|
|
1473 |
status = wsp->walk_callback(addr, lwd->lw_obj, wsp->walk_cbdata);
|
|
|
1474 |
node = (txg_node_t *)((uintptr_t)lwd->lw_obj + lwd->lw_offset);
|
|
|
1475 |
wsp->walk_addr = (uintptr_t)node->tn_next[lwd->lw_txgoff];
|
|
|
1476 |
|
|
|
1477 |
return (status);
|
|
|
1478 |
}
|
|
|
1479 |
|
|
|
1480 |
/* ARGSUSED */
|
|
|
1481 |
static void
|
|
|
1482 |
txg_list_walk_fini(mdb_walk_state_t *wsp)
|
|
|
1483 |
{
|
|
|
1484 |
}
|
|
|
1485 |
|
|
|
1486 |
/*
|
|
|
1487 |
* ::walk spa
|
|
|
1488 |
*
|
|
|
1489 |
* Walk all named spa_t structures in the namespace. This is nothing more than
|
|
|
1490 |
* a layered avl walk.
|
|
|
1491 |
*/
|
|
|
1492 |
static int
|
|
|
1493 |
spa_walk_init(mdb_walk_state_t *wsp)
|
|
|
1494 |
{
|
|
|
1495 |
GElf_Sym sym;
|
|
|
1496 |
|
|
|
1497 |
if (wsp->walk_addr != NULL) {
|
|
|
1498 |
mdb_warn("spa walk only supports global walks\n");
|
|
|
1499 |
return (WALK_ERR);
|
|
|
1500 |
}
|
|
|
1501 |
|
|
|
1502 |
if (mdb_lookup_by_obj(ZFS_OBJ_NAME, "spa_namespace_avl", &sym) == -1) {
|
|
|
1503 |
mdb_warn("failed to find symbol 'spa_namespace_avl'");
|
|
|
1504 |
return (WALK_ERR);
|
|
|
1505 |
}
|
|
|
1506 |
|
|
|
1507 |
wsp->walk_addr = (uintptr_t)sym.st_value;
|
|
|
1508 |
|
|
|
1509 |
if (mdb_layered_walk("avl", wsp) == -1) {
|
|
|
1510 |
mdb_warn("failed to walk 'avl'\n");
|
|
|
1511 |
return (WALK_ERR);
|
|
|
1512 |
}
|
|
|
1513 |
|
|
|
1514 |
return (WALK_NEXT);
|
|
|
1515 |
}
|
|
|
1516 |
|
|
|
1517 |
static int
|
|
|
1518 |
spa_walk_step(mdb_walk_state_t *wsp)
|
|
|
1519 |
{
|
|
|
1520 |
spa_t spa;
|
|
|
1521 |
|
|
|
1522 |
if (mdb_vread(&spa, sizeof (spa), wsp->walk_addr) == -1) {
|
|
|
1523 |
mdb_warn("failed to read spa_t at %p", wsp->walk_addr);
|
|
|
1524 |
return (WALK_ERR);
|
|
|
1525 |
}
|
|
|
1526 |
|
|
|
1527 |
return (wsp->walk_callback(wsp->walk_addr, &spa, wsp->walk_cbdata));
|
|
|
1528 |
}
|
|
|
1529 |
|
|
|
1530 |
/*
|
|
|
1531 |
* MDB module linkage information:
|
|
|
1532 |
*
|
|
|
1533 |
* We declare a list of structures describing our dcmds, and a function
|
|
|
1534 |
* named _mdb_init to return a pointer to our module information.
|
|
|
1535 |
*/
|
|
|
1536 |
|
|
|
1537 |
static const mdb_dcmd_t dcmds[] = {
|
|
|
1538 |
{ "blkptr", ":", "print blkptr_t", blkptr },
|
|
|
1539 |
{ "dbuf", ":", "print dmu_buf_impl_t", dbuf },
|
|
|
1540 |
{ "dbuf_stats", ":", "dbuf stats", dbuf_stats },
|
|
|
1541 |
{ "dbufs",
|
|
|
1542 |
"\t[-O objset_t*] [-n objset_name | \"mos\"] [-o object | \"mdn\"] \n"
|
|
|
1543 |
"\t[-l level] [-b blkid | \"bonus\"]",
|
|
|
1544 |
"find dmu_buf_impl_t's that meet criterion", dbufs },
|
|
|
1545 |
{ "abuf_find", "dva_word[0] dva_word[1]",
|
|
|
1546 |
"find arc_buf_hdr_t of a specified DVA",
|
|
|
1547 |
abuf_find },
|
|
|
1548 |
{ "spa", "?[-cv]", "spa_t summary", spa_print },
|
|
|
1549 |
{ "spa_config", ":", "print spa_t configuration", spa_print_config },
|
|
|
1550 |
{ "spa_verify", ":", "verify spa_t consistency", spa_verify },
|
|
|
1551 |
{ "spa_space", ":[-b]", "print spa_t on-disk space usage", spa_space },
|
|
|
1552 |
{ "spa_vdevs", ":", "given a spa_t, print vdev summary", spa_vdevs },
|
|
|
1553 |
{ "vdev", ":[-qre]", "vdev_t summary", vdev_print },
|
|
|
1554 |
{ "zio_pipeline", ":", "decode a zio pipeline", zio_pipeline },
|
|
|
1555 |
{ NULL }
|
|
|
1556 |
};
|
|
|
1557 |
|
|
|
1558 |
static const mdb_walker_t walkers[] = {
|
|
|
1559 |
/*
|
|
|
1560 |
* In userland, there is no generic provider of list_t walkers, so we
|
|
|
1561 |
* need to add it.
|
|
|
1562 |
*/
|
|
|
1563 |
#ifndef _KERNEL
|
|
|
1564 |
{ LIST_WALK_NAME, LIST_WALK_DESC,
|
|
|
1565 |
list_walk_init, list_walk_step, list_walk_fini },
|
|
|
1566 |
#endif
|
|
|
1567 |
{ "dbufs", "walk cached ZFS dbufs",
|
|
|
1568 |
dbuf_walk_init, dbuf_walk_step, dbuf_walk_fini },
|
|
|
1569 |
{ "zms_freelist", "walk ZFS metaslab freelist",
|
|
|
1570 |
freelist_walk_init, freelist_walk_step, freelist_walk_fini },
|
|
|
1571 |
{ "txg_list", "given any txg_list_t *, walk all entries in all txgs",
|
|
|
1572 |
txg_list_walk_init, txg_list_walk_step, txg_list_walk_fini },
|
|
|
1573 |
{ "txg_list0", "given any txg_list_t *, walk all entries in txg 0",
|
|
|
1574 |
txg_list0_walk_init, txg_list_walk_step, txg_list_walk_fini },
|
|
|
1575 |
{ "txg_list1", "given any txg_list_t *, walk all entries in txg 1",
|
|
|
1576 |
txg_list1_walk_init, txg_list_walk_step, txg_list_walk_fini },
|
|
|
1577 |
{ "txg_list2", "given any txg_list_t *, walk all entries in txg 2",
|
|
|
1578 |
txg_list2_walk_init, txg_list_walk_step, txg_list_walk_fini },
|
|
|
1579 |
{ "txg_list3", "given any txg_list_t *, walk all entries in txg 3",
|
|
|
1580 |
txg_list3_walk_init, txg_list_walk_step, txg_list_walk_fini },
|
|
|
1581 |
{ "spa", "walk all spa_t entries in the namespace",
|
|
|
1582 |
spa_walk_init, spa_walk_step, NULL },
|
|
|
1583 |
{ NULL }
|
|
|
1584 |
};
|
|
|
1585 |
|
|
|
1586 |
static const mdb_modinfo_t modinfo = {
|
|
|
1587 |
MDB_API_VERSION, dcmds, walkers
|
|
|
1588 |
};
|
|
|
1589 |
|
|
|
1590 |
const mdb_modinfo_t *
|
|
|
1591 |
_mdb_init(void)
|
|
|
1592 |
{
|
|
|
1593 |
return (&modinfo);
|
|
|
1594 |
}
|