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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 | ||
c552fbc5 | 23 | basedir=$(dirname "$0") |
541a0901 BB |
24 | |
25 | SCRIPT_COMMON=common.sh | |
26 | if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then | |
27 | . "${basedir}/${SCRIPT_COMMON}" | |
28 | else | |
29 | echo "Missing helper script ${SCRIPT_COMMON}" && exit 1 | |
30 | fi | |
31 | ||
c552fbc5 | 32 | # shellcheck disable=SC2034 |
541a0901 BB |
33 | PROG=zloop.sh |
34 | ||
35 | DEFAULTWORKDIR=/var/tmp | |
36 | DEFAULTCOREDIR=/var/tmp/zloop | |
37 | ||
38 | function usage | |
39 | { | |
40 | echo -e "\n$0 [-t <timeout>] [-c <dump directory>]" \ | |
41 | "[ -- [extra ztest parameters]]\n" \ | |
42 | "\n" \ | |
43 | " This script runs ztest repeatedly with randomized arguments.\n" \ | |
44 | " If a crash is encountered, the ztest logs, any associated\n" \ | |
45 | " vdev files, and core file (if one exists) are moved to the\n" \ | |
46 | " output directory ($DEFAULTCOREDIR by default). Any options\n" \ | |
47 | " after the -- end-of-options marker will be passed to ztest.\n" \ | |
48 | "\n" \ | |
49 | " Options:\n" \ | |
50 | " -t Total time to loop for, in seconds. If not provided,\n" \ | |
51 | " zloop runs forever.\n" \ | |
52 | " -f Specify working directory for ztest vdev files.\n" \ | |
53 | " -c Specify a core dump directory to use.\n" \ | |
54 | " -h Print this help message.\n" \ | |
55 | "" >&2 | |
56 | } | |
57 | ||
58 | function or_die | |
59 | { | |
c552fbc5 | 60 | # shellcheck disable=SC2068 |
541a0901 | 61 | $@ |
c552fbc5 | 62 | # shellcheck disable=SC2181 |
541a0901 | 63 | if [[ $? -ne 0 ]]; then |
c552fbc5 | 64 | # shellcheck disable=SC2145 |
541a0901 BB |
65 | echo "Command failed: $@" |
66 | exit 1 | |
67 | fi | |
68 | } | |
69 | ||
20da0566 GN |
70 | # core file helpers |
71 | origcorepattern="$(cat /proc/sys/kernel/core_pattern)" | |
72 | coreglob="$(egrep -o '^([^|%[:space:]]*)' /proc/sys/kernel/core_pattern)*" | |
73 | ||
74 | if [[ $coreglob = "*" ]]; then | |
75 | echo "Setting core file pattern..." | |
76 | echo "core" > /proc/sys/kernel/core_pattern | |
0c313d2f GN |
77 | coreglob="$(egrep -o '^([^|%[:space:]]*)' \ |
78 | /proc/sys/kernel/core_pattern)*" | |
20da0566 GN |
79 | fi |
80 | ||
81 | function core_file | |
82 | { | |
c552fbc5 | 83 | # shellcheck disable=SC2012 disable=2086 |
20da0566 GN |
84 | printf "%s" "$(ls -tr1 $coreglob 2> /dev/null | head -1)" |
85 | } | |
86 | ||
0c313d2f GN |
87 | function core_prog |
88 | { | |
89 | prog=$ZTEST | |
c552fbc5 | 90 | core_id=$($GDB --batch -c "$1" | grep "Core was generated by" | \ |
0c313d2f | 91 | tr \' ' ') |
c552fbc5 | 92 | # shellcheck disable=SC2076 |
0c313d2f GN |
93 | if [[ "$core_id" =~ "zdb " ]]; then |
94 | prog=$ZDB | |
95 | fi | |
96 | printf "%s" "$prog" | |
97 | } | |
98 | ||
541a0901 BB |
99 | function store_core |
100 | { | |
20da0566 GN |
101 | core="$(core_file)" |
102 | if [[ $ztrc -ne 0 ]] || [[ -f "$core" ]]; then | |
541a0901 | 103 | coreid=$(date "+zloop-%y%m%d-%H%M%S") |
c552fbc5 | 104 | foundcrashes=$((foundcrashes + 1)) |
541a0901 BB |
105 | |
106 | dest=$coredir/$coreid | |
c552fbc5 GDN |
107 | or_die mkdir -p "$dest" |
108 | or_die mkdir -p "$dest/vdev" | |
541a0901 BB |
109 | |
110 | echo "*** ztest crash found - moving logs to $dest" | |
111 | ||
c552fbc5 GDN |
112 | or_die mv ztest.history "$dest/" |
113 | or_die mv ztest.ddt "$dest/" | |
114 | or_die mv ztest.out "$dest/" | |
115 | or_die mv "$workdir/ztest*" "$dest/vdev/" | |
116 | or_die mv "$workdir/zpool.cache" "$dest/vdev/" | |
541a0901 BB |
117 | |
118 | # check for core | |
20da0566 | 119 | if [[ -f "$core" ]]; then |
c552fbc5 | 120 | coreprog=$(core_prog "$core") |
541a0901 BB |
121 | corestatus=$($GDB --batch --quiet \ |
122 | -ex "set print thread-events off" \ | |
123 | -ex "printf \"*\n* Backtrace \n*\n\"" \ | |
124 | -ex "bt" \ | |
125 | -ex "printf \"*\n* Libraries \n*\n\"" \ | |
126 | -ex "info sharedlib" \ | |
127 | -ex "printf \"*\n* Threads (full) \n*\n\"" \ | |
128 | -ex "info threads" \ | |
129 | -ex "printf \"*\n* Backtraces \n*\n\"" \ | |
130 | -ex "thread apply all bt" \ | |
131 | -ex "printf \"*\n* Backtraces (full) \n*\n\"" \ | |
132 | -ex "thread apply all bt full" \ | |
c552fbc5 | 133 | -ex "quit" "$coreprog" "$core" | grep -v "New LWP") |
541a0901 BB |
134 | |
135 | # Dump core + logs to stored directory | |
c552fbc5 GDN |
136 | echo "$corestatus" >>"$dest/status" |
137 | or_die mv "$core" "$dest/" | |
541a0901 BB |
138 | |
139 | # Record info in cores logfile | |
20da0566 | 140 | echo "*** core @ $coredir/$coreid/$core:" | \ |
541a0901 BB |
141 | tee -a ztest.cores |
142 | echo "$corestatus" | tee -a ztest.cores | |
143 | echo "" | tee -a ztest.cores | |
144 | fi | |
145 | echo "continuing..." | |
146 | fi | |
147 | } | |
148 | ||
149 | # parse arguments | |
150 | # expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args] | |
151 | coredir=$DEFAULTCOREDIR | |
152 | workdir=$DEFAULTWORKDIR | |
153 | timeout=0 | |
154 | while getopts ":ht:c:f:" opt; do | |
155 | case $opt in | |
156 | t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;; | |
157 | c ) [[ $OPTARG ]] && coredir=$OPTARG ;; | |
c552fbc5 | 158 | f ) [[ $OPTARG ]] && workdir=$(readlink -f "$OPTARG") ;; |
541a0901 BB |
159 | h ) usage |
160 | exit 2 | |
161 | ;; | |
162 | * ) echo "Invalid argument: -$OPTARG"; | |
163 | usage | |
164 | exit 1 | |
165 | esac | |
166 | done | |
167 | # pass remaining arguments on to ztest | |
168 | shift $((OPTIND - 1)) | |
169 | ||
170 | # enable core dumps | |
171 | ulimit -c unlimited | |
172 | ||
20da0566 GN |
173 | if [[ -f "$(core_file)" ]]; then |
174 | echo -n "There's a core dump here you might want to look at first... " | |
c552fbc5 | 175 | core_file |
541a0901 BB |
176 | exit 1 |
177 | fi | |
178 | ||
179 | if [[ ! -d $coredir ]]; then | |
180 | echo "core dump directory ($coredir) does not exist, creating it." | |
c552fbc5 | 181 | or_die mkdir -p "$coredir" |
541a0901 BB |
182 | fi |
183 | ||
184 | if [[ ! -w $coredir ]]; then | |
185 | echo "core dump directory ($coredir) is not writable." | |
186 | exit 1 | |
187 | fi | |
188 | ||
189 | or_die rm -f ztest.history | |
190 | or_die rm -f ztest.ddt | |
191 | or_die rm -f ztest.cores | |
192 | ||
193 | ztrc=0 # ztest return value | |
194 | foundcrashes=0 # number of crashes found so far | |
195 | starttime=$(date +%s) | |
196 | curtime=$starttime | |
197 | ||
198 | # if no timeout was specified, loop forever. | |
c552fbc5 | 199 | while [[ $timeout -eq 0 ]] || [[ $curtime -le $((starttime + timeout)) ]]; do |
541a0901 BB |
200 | zopt="-VVVVV" |
201 | ||
202 | # switch between common arrangements & fully randomized | |
203 | if [[ $((RANDOM % 2)) -eq 0 ]]; then | |
204 | mirrors=2 | |
205 | raidz=0 | |
206 | parity=1 | |
207 | vdevs=2 | |
208 | else | |
209 | mirrors=$(((RANDOM % 3) * 1)) | |
210 | parity=$(((RANDOM % 3) + 1)) | |
211 | raidz=$((((RANDOM % 9) + parity + 1) * (RANDOM % 2))) | |
212 | vdevs=$(((RANDOM % 3) + 3)) | |
213 | fi | |
214 | align=$(((RANDOM % 2) * 3 + 9)) | |
215 | runtime=$((RANDOM % 100)) | |
216 | passtime=$((RANDOM % (runtime / 3 + 1) + 10)) | |
217 | size=128m | |
218 | ||
219 | zopt="$zopt -m $mirrors" | |
220 | zopt="$zopt -r $raidz" | |
221 | zopt="$zopt -R $parity" | |
222 | zopt="$zopt -v $vdevs" | |
223 | zopt="$zopt -a $align" | |
224 | zopt="$zopt -T $runtime" | |
225 | zopt="$zopt -P $passtime" | |
226 | zopt="$zopt -s $size" | |
227 | zopt="$zopt -f $workdir" | |
228 | ||
c552fbc5 | 229 | # shellcheck disable=SC2124 |
541a0901 BB |
230 | cmd="$ZTEST $zopt $@" |
231 | desc="$(date '+%m/%d %T') $cmd" | |
232 | echo "$desc" | tee -a ztest.history | |
233 | echo "$desc" >>ztest.out | |
234 | $cmd >>ztest.out 2>&1 | |
235 | ztrc=$? | |
236 | egrep '===|WARNING' ztest.out >>ztest.history | |
c552fbc5 | 237 | $ZDB -U "$workdir/zpool.cache" -DD ztest >>ztest.ddt |
541a0901 BB |
238 | |
239 | store_core | |
240 | ||
241 | curtime=$(date +%s) | |
242 | done | |
243 | ||
244 | echo "zloop finished, $foundcrashes crashes found" | |
245 | ||
20da0566 GN |
246 | #restore core pattern |
247 | echo "$origcorepattern" > /proc/sys/kernel/core_pattern | |
248 | ||
541a0901 BB |
249 | uptime >>ztest.out |
250 | ||
251 | if [[ $foundcrashes -gt 0 ]]; then | |
252 | exit 1 | |
253 | fi |