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9c13b489 | 1 | #!/bin/bash |
541a0901 BB |
2 | |
3 | # | |
4 | # CDDL HEADER START | |
5 | # | |
6 | # This file and its contents are supplied under the terms of the | |
7 | # Common Development and Distribution License ("CDDL"), version 1.0. | |
8 | # You may only use this file in accordance with the terms of version | |
9 | # 1.0 of the CDDL. | |
10 | # | |
11 | # A full copy of the text of the CDDL should have accompanied this | |
12 | # source. A copy of the CDDL is also available via the Internet at | |
13 | # http://www.illumos.org/license/CDDL. | |
14 | # | |
15 | # CDDL HEADER END | |
16 | # | |
17 | ||
18 | # | |
19 | # Copyright (c) 2015 by Delphix. All rights reserved. | |
20 | # Copyright (C) 2016 Lawrence Livermore National Security, LLC. | |
21 | # | |
22 | ||
23 | basedir="$(dirname $0)" | |
24 | ||
25 | SCRIPT_COMMON=common.sh | |
26 | if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then | |
27 | . "${basedir}/${SCRIPT_COMMON}" | |
28 | else | |
29 | echo "Missing helper script ${SCRIPT_COMMON}" && exit 1 | |
30 | fi | |
31 | ||
32 | PROG=zloop.sh | |
33 | ||
34 | DEFAULTWORKDIR=/var/tmp | |
35 | DEFAULTCOREDIR=/var/tmp/zloop | |
36 | ||
37 | function usage | |
38 | { | |
39 | echo -e "\n$0 [-t <timeout>] [-c <dump directory>]" \ | |
40 | "[ -- [extra ztest parameters]]\n" \ | |
41 | "\n" \ | |
42 | " This script runs ztest repeatedly with randomized arguments.\n" \ | |
43 | " If a crash is encountered, the ztest logs, any associated\n" \ | |
44 | " vdev files, and core file (if one exists) are moved to the\n" \ | |
45 | " output directory ($DEFAULTCOREDIR by default). Any options\n" \ | |
46 | " after the -- end-of-options marker will be passed to ztest.\n" \ | |
47 | "\n" \ | |
48 | " Options:\n" \ | |
49 | " -t Total time to loop for, in seconds. If not provided,\n" \ | |
50 | " zloop runs forever.\n" \ | |
51 | " -f Specify working directory for ztest vdev files.\n" \ | |
52 | " -c Specify a core dump directory to use.\n" \ | |
53 | " -h Print this help message.\n" \ | |
54 | "" >&2 | |
55 | } | |
56 | ||
57 | function or_die | |
58 | { | |
59 | $@ | |
60 | if [[ $? -ne 0 ]]; then | |
61 | echo "Command failed: $@" | |
62 | exit 1 | |
63 | fi | |
64 | } | |
65 | ||
20da0566 GN |
66 | # core file helpers |
67 | origcorepattern="$(cat /proc/sys/kernel/core_pattern)" | |
68 | coreglob="$(egrep -o '^([^|%[:space:]]*)' /proc/sys/kernel/core_pattern)*" | |
69 | ||
70 | if [[ $coreglob = "*" ]]; then | |
71 | echo "Setting core file pattern..." | |
72 | echo "core" > /proc/sys/kernel/core_pattern | |
73 | coreglob="$(egrep -o '^([^|%[:space:]]*)' /proc/sys/kernel/core_pattern)*" | |
74 | fi | |
75 | ||
76 | function core_file | |
77 | { | |
78 | printf "%s" "$(ls -tr1 $coreglob 2> /dev/null | head -1)" | |
79 | } | |
80 | ||
541a0901 BB |
81 | function store_core |
82 | { | |
20da0566 GN |
83 | core="$(core_file)" |
84 | if [[ $ztrc -ne 0 ]] || [[ -f "$core" ]]; then | |
541a0901 BB |
85 | coreid=$(date "+zloop-%y%m%d-%H%M%S") |
86 | foundcrashes=$(($foundcrashes + 1)) | |
87 | ||
88 | dest=$coredir/$coreid | |
89 | or_die mkdir -p $dest | |
90 | or_die mkdir -p $dest/vdev | |
91 | ||
92 | echo "*** ztest crash found - moving logs to $dest" | |
93 | ||
94 | or_die mv ztest.history $dest/ | |
95 | or_die mv ztest.ddt $dest/ | |
96 | or_die mv ztest.out $dest/ | |
97 | or_die mv $workdir/ztest* $dest/vdev/ | |
98 | or_die mv $workdir/zpool.cache $dest/vdev/ | |
99 | ||
100 | # check for core | |
20da0566 | 101 | if [[ -f "$core" ]]; then |
541a0901 BB |
102 | corestatus=$($GDB --batch --quiet \ |
103 | -ex "set print thread-events off" \ | |
104 | -ex "printf \"*\n* Backtrace \n*\n\"" \ | |
105 | -ex "bt" \ | |
106 | -ex "printf \"*\n* Libraries \n*\n\"" \ | |
107 | -ex "info sharedlib" \ | |
108 | -ex "printf \"*\n* Threads (full) \n*\n\"" \ | |
109 | -ex "info threads" \ | |
110 | -ex "printf \"*\n* Backtraces \n*\n\"" \ | |
111 | -ex "thread apply all bt" \ | |
112 | -ex "printf \"*\n* Backtraces (full) \n*\n\"" \ | |
113 | -ex "thread apply all bt full" \ | |
20da0566 | 114 | -ex "quit" $ZTEST "$core" | grep -v "New LWP") |
541a0901 BB |
115 | |
116 | # Dump core + logs to stored directory | |
117 | echo "$corestatus" >>$dest/status | |
20da0566 | 118 | or_die mv "$core" $dest/ |
541a0901 BB |
119 | |
120 | # Record info in cores logfile | |
20da0566 | 121 | echo "*** core @ $coredir/$coreid/$core:" | \ |
541a0901 BB |
122 | tee -a ztest.cores |
123 | echo "$corestatus" | tee -a ztest.cores | |
124 | echo "" | tee -a ztest.cores | |
125 | fi | |
126 | echo "continuing..." | |
127 | fi | |
128 | } | |
129 | ||
130 | # parse arguments | |
131 | # expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args] | |
132 | coredir=$DEFAULTCOREDIR | |
133 | workdir=$DEFAULTWORKDIR | |
134 | timeout=0 | |
135 | while getopts ":ht:c:f:" opt; do | |
136 | case $opt in | |
137 | t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;; | |
138 | c ) [[ $OPTARG ]] && coredir=$OPTARG ;; | |
139 | f ) [[ $OPTARG ]] && workdir=$(readlink -f $OPTARG) ;; | |
140 | h ) usage | |
141 | exit 2 | |
142 | ;; | |
143 | * ) echo "Invalid argument: -$OPTARG"; | |
144 | usage | |
145 | exit 1 | |
146 | esac | |
147 | done | |
148 | # pass remaining arguments on to ztest | |
149 | shift $((OPTIND - 1)) | |
150 | ||
151 | # enable core dumps | |
152 | ulimit -c unlimited | |
153 | ||
20da0566 GN |
154 | if [[ -f "$(core_file)" ]]; then |
155 | echo -n "There's a core dump here you might want to look at first... " | |
156 | echo "$(core_file)" | |
541a0901 BB |
157 | exit 1 |
158 | fi | |
159 | ||
160 | if [[ ! -d $coredir ]]; then | |
161 | echo "core dump directory ($coredir) does not exist, creating it." | |
162 | or_die mkdir -p $coredir | |
163 | fi | |
164 | ||
165 | if [[ ! -w $coredir ]]; then | |
166 | echo "core dump directory ($coredir) is not writable." | |
167 | exit 1 | |
168 | fi | |
169 | ||
170 | or_die rm -f ztest.history | |
171 | or_die rm -f ztest.ddt | |
172 | or_die rm -f ztest.cores | |
173 | ||
174 | ztrc=0 # ztest return value | |
175 | foundcrashes=0 # number of crashes found so far | |
176 | starttime=$(date +%s) | |
177 | curtime=$starttime | |
178 | ||
179 | # if no timeout was specified, loop forever. | |
180 | while [[ $timeout -eq 0 ]] || [[ $curtime -le $(($starttime + $timeout)) ]]; do | |
181 | zopt="-VVVVV" | |
182 | ||
183 | # switch between common arrangements & fully randomized | |
184 | if [[ $((RANDOM % 2)) -eq 0 ]]; then | |
185 | mirrors=2 | |
186 | raidz=0 | |
187 | parity=1 | |
188 | vdevs=2 | |
189 | else | |
190 | mirrors=$(((RANDOM % 3) * 1)) | |
191 | parity=$(((RANDOM % 3) + 1)) | |
192 | raidz=$((((RANDOM % 9) + parity + 1) * (RANDOM % 2))) | |
193 | vdevs=$(((RANDOM % 3) + 3)) | |
194 | fi | |
195 | align=$(((RANDOM % 2) * 3 + 9)) | |
196 | runtime=$((RANDOM % 100)) | |
197 | passtime=$((RANDOM % (runtime / 3 + 1) + 10)) | |
198 | size=128m | |
199 | ||
200 | zopt="$zopt -m $mirrors" | |
201 | zopt="$zopt -r $raidz" | |
202 | zopt="$zopt -R $parity" | |
203 | zopt="$zopt -v $vdevs" | |
204 | zopt="$zopt -a $align" | |
205 | zopt="$zopt -T $runtime" | |
206 | zopt="$zopt -P $passtime" | |
207 | zopt="$zopt -s $size" | |
208 | zopt="$zopt -f $workdir" | |
209 | ||
210 | cmd="$ZTEST $zopt $@" | |
211 | desc="$(date '+%m/%d %T') $cmd" | |
212 | echo "$desc" | tee -a ztest.history | |
213 | echo "$desc" >>ztest.out | |
214 | $cmd >>ztest.out 2>&1 | |
215 | ztrc=$? | |
216 | egrep '===|WARNING' ztest.out >>ztest.history | |
217 | $ZDB -U $workdir/zpool.cache -DD ztest >>ztest.ddt | |
218 | ||
219 | store_core | |
220 | ||
221 | curtime=$(date +%s) | |
222 | done | |
223 | ||
224 | echo "zloop finished, $foundcrashes crashes found" | |
225 | ||
20da0566 GN |
226 | #restore core pattern |
227 | echo "$origcorepattern" > /proc/sys/kernel/core_pattern | |
228 | ||
541a0901 BB |
229 | uptime >>ztest.out |
230 | ||
231 | if [[ $foundcrashes -gt 0 ]]; then | |
232 | exit 1 | |
233 | fi |