1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright 2008 Sun Microsystems, Inc. All rights reserved. 25# Use is subject to license terms. 26# 27 28# 29# Copyright (c) 2013, 2016 by Delphix. All rights reserved. 30# 31 32. $STF_SUITE/include/libtest.shlib 33 34# 35# DESCRIPTION: 36# Verify that the ZFS mdb dcmds and walkers are working as expected. 37# 38# STRATEGY: 39# 1) Given a list of dcmds and walkers 40# 2) Step through each element of the list 41# 3) Verify the output by checking for "mdb:" in the output string 42# 43 44function cleanup 45{ 46 rm -f $OUTFILE 47} 48 49verify_runnable "global" 50log_onexit cleanup 51 52tmpfile=$(mktemp) 53log_must zpool scrub $TESTPOOL 54 55typeset spa=$(mdb -ke "::spa" | awk "/$TESTPOOL/ {print \$1}") 56typeset off_ub=$(mdb -ke "::offsetof spa_t spa_uberblock | =J") 57typeset off_rbp=$(mdb -ke "::offsetof uberblock_t ub_rootbp | =J") 58typeset bp=$(mdb -ke "$spa + $off_ub + $off_rbp =J") 59 60# dcmds and walkers skipped due to being DEBUG only or difficult to run: 61# ::zfs_params 62# ::refcount 63 64set -A dcmds "::abuf_find 1 2" \ 65 "::arc" \ 66 "::arc -b" \ 67 "::arc_compression_stats" \ 68 "$bp ::blkptr" \ 69 "$bp ::dva" \ 70 "::walk spa" \ 71 "::spa" \ 72 "$spa ::spa " \ 73 "$spa ::spa -c" \ 74 "$spa ::spa -h" \ 75 "$spa ::spa -v" \ 76 "$spa ::spa -Mmh" \ 77 "$spa ::spa_config" \ 78 "$spa ::spa_space" \ 79 "$spa ::spa_space -b" \ 80 "$spa ::spa_vdevs" \ 81 "$spa ::print spa_t spa_root_vdev | ::vdev" \ 82 "$spa ::print spa_t spa_root_vdev | ::vdev -re" \ 83 "$spa ::print -a spa_t spa_dsl_pool->dp_dirty_datasets | ::walk txg_list" \ 84 "$spa ::print -a spa_t spa_uberblock.ub_rootbp | ::blkptr" \ 85 "$spa ::walk metaslab" \ 86 "$spa ::walk metaslab | ::head -1 | ::metaslab_weight" \ 87 "$spa ::walk metaslab | ::head -1 | ::metaslab_trace" \ 88 "$spa ::walk zio_root | ::zio -c" \ 89 "$spa ::walk zio_root | ::zio -r" \ 90 "$spa ::walk zms_freelist" 91 "$spa ::zfs_blkstats -v" \ 92 "::dbufs" \ 93 "::dbufs -n mos -o mdn -l 0 -b 0" \ 94 "::dbufs | ::dbuf" \ 95 "::dbuf_stats" \ 96 "dbuf_cache ::walk multilist" 97# 98# The commands above were supplied by the ZFS development team. The idea is to 99# do as much checking as possible without the need to hardcode addresses. 100# 101 102log_assert "Verify that the ZFS mdb dcmds and walkers are working as expected." 103 104typeset -i RET=0 105 106i=0 107while (( $i < ${#dcmds[*]} )); do 108 log_note "Verifying: '${dcmds[i]}'" 109 echo "${dcmds[i]}" | mdb -k > $OUTFILE 2>&1 110 RET=$? 111 if (( $RET != 0 )); then 112 log_fail "mdb '${dcmds[i]}' returned error $RET" 113 fi 114 115 # 116 # mdb prefixes all errors with "mdb: " so we check the output. 117 # 118 grep "mdb:" $OUTFILE > /dev/null 2>&1 119 RET=$? 120 if (( $RET == 0 )); then 121 echo "mdb '${dcmds[i]}' contained 'mdb:'" 122 # Using tail limits the number of lines in the log 123 tail -100 $OUTFILE 124 log_fail "mdb walker or dcmd failed" 125 fi 126 127 ((i = i + 1)) 128done 129 130log_pass "The ZFS mdb dcmds and walkers are working as expected." 131