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Diffstat (limited to 'scripts/zloop.sh')
| -rwxr-xr-x | scripts/zloop.sh | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/scripts/zloop.sh b/scripts/zloop.sh new file mode 100755 index 000000000..26ad1780c --- /dev/null +++ b/scripts/zloop.sh @@ -0,0 +1,213 @@ +#!/bin/sh + +# +# CDDL HEADER START +# +# This file and its contents are supplied under the terms of the +# Common Development and Distribution License ("CDDL"), version 1.0. +# You may only use this file in accordance with the terms of version +# 1.0 of the CDDL. +# +# A full copy of the text of the CDDL should have accompanied this +# source. A copy of the CDDL is also available via the Internet at +# http://www.illumos.org/license/CDDL. +# +# CDDL HEADER END +# + +# +# Copyright (c) 2015 by Delphix. All rights reserved. +# Copyright (C) 2016 Lawrence Livermore National Security, LLC. +# + +basedir="$(dirname $0)" + +SCRIPT_COMMON=common.sh +if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then + . "${basedir}/${SCRIPT_COMMON}" +else + echo "Missing helper script ${SCRIPT_COMMON}" && exit 1 +fi + +PROG=zloop.sh + +DEFAULTWORKDIR=/var/tmp +DEFAULTCOREDIR=/var/tmp/zloop + +function usage +{ + echo -e "\n$0 [-t <timeout>] [-c <dump directory>]" \ + "[ -- [extra ztest parameters]]\n" \ + "\n" \ + " This script runs ztest repeatedly with randomized arguments.\n" \ + " If a crash is encountered, the ztest logs, any associated\n" \ + " vdev files, and core file (if one exists) are moved to the\n" \ + " output directory ($DEFAULTCOREDIR by default). Any options\n" \ + " after the -- end-of-options marker will be passed to ztest.\n" \ + "\n" \ + " Options:\n" \ + " -t Total time to loop for, in seconds. If not provided,\n" \ + " zloop runs forever.\n" \ + " -f Specify working directory for ztest vdev files.\n" \ + " -c Specify a core dump directory to use.\n" \ + " -h Print this help message.\n" \ + "" >&2 +} + +function or_die +{ + $@ + if [[ $? -ne 0 ]]; then + echo "Command failed: $@" + exit 1 + fi +} + +function store_core +{ + if [[ $ztrc -ne 0 ]] || [[ -f core ]]; then + coreid=$(date "+zloop-%y%m%d-%H%M%S") + foundcrashes=$(($foundcrashes + 1)) + + dest=$coredir/$coreid + or_die mkdir -p $dest + or_die mkdir -p $dest/vdev + + echo "*** ztest crash found - moving logs to $dest" + + or_die mv ztest.history $dest/ + or_die mv ztest.ddt $dest/ + or_die mv ztest.out $dest/ + or_die mv $workdir/ztest* $dest/vdev/ + or_die mv $workdir/zpool.cache $dest/vdev/ + + # check for core + if [[ -f core ]]; then + corestatus=$($GDB --batch --quiet \ + -ex "set print thread-events off" \ + -ex "printf \"*\n* Backtrace \n*\n\"" \ + -ex "bt" \ + -ex "printf \"*\n* Libraries \n*\n\"" \ + -ex "info sharedlib" \ + -ex "printf \"*\n* Threads (full) \n*\n\"" \ + -ex "info threads" \ + -ex "printf \"*\n* Backtraces \n*\n\"" \ + -ex "thread apply all bt" \ + -ex "printf \"*\n* Backtraces (full) \n*\n\"" \ + -ex "thread apply all bt full" \ + -ex "quit" $ZTEST core | grep -v "New LWP") + + # Dump core + logs to stored directory + echo "$corestatus" >>$dest/status + or_die mv core $dest/ + + # Record info in cores logfile + echo "*** core @ $coredir/$coreid/core:" | \ + tee -a ztest.cores + echo "$corestatus" | tee -a ztest.cores + echo "" | tee -a ztest.cores + fi + echo "continuing..." + fi +} + +# parse arguments +# expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args] +coredir=$DEFAULTCOREDIR +workdir=$DEFAULTWORKDIR +timeout=0 +while getopts ":ht:c:f:" opt; do + case $opt in + t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;; + c ) [[ $OPTARG ]] && coredir=$OPTARG ;; + f ) [[ $OPTARG ]] && workdir=$(readlink -f $OPTARG) ;; + h ) usage + exit 2 + ;; + * ) echo "Invalid argument: -$OPTARG"; + usage + exit 1 + esac +done +# pass remaining arguments on to ztest +shift $((OPTIND - 1)) + +# enable core dumps +ulimit -c unlimited + +if [[ -f core ]]; then + echo "There's a core dump here you might want to look at first." + exit 1 +fi + +if [[ ! -d $coredir ]]; then + echo "core dump directory ($coredir) does not exist, creating it." + or_die mkdir -p $coredir +fi + +if [[ ! -w $coredir ]]; then + echo "core dump directory ($coredir) is not writable." + exit 1 +fi + +or_die rm -f ztest.history +or_die rm -f ztest.ddt +or_die rm -f ztest.cores + +ztrc=0 # ztest return value +foundcrashes=0 # number of crashes found so far +starttime=$(date +%s) +curtime=$starttime + +# if no timeout was specified, loop forever. +while [[ $timeout -eq 0 ]] || [[ $curtime -le $(($starttime + $timeout)) ]]; do + zopt="-VVVVV" + + # switch between common arrangements & fully randomized + if [[ $((RANDOM % 2)) -eq 0 ]]; then + mirrors=2 + raidz=0 + parity=1 + vdevs=2 + else + mirrors=$(((RANDOM % 3) * 1)) + parity=$(((RANDOM % 3) + 1)) + raidz=$((((RANDOM % 9) + parity + 1) * (RANDOM % 2))) + vdevs=$(((RANDOM % 3) + 3)) + fi + align=$(((RANDOM % 2) * 3 + 9)) + runtime=$((RANDOM % 100)) + passtime=$((RANDOM % (runtime / 3 + 1) + 10)) + size=128m + + zopt="$zopt -m $mirrors" + zopt="$zopt -r $raidz" + zopt="$zopt -R $parity" + zopt="$zopt -v $vdevs" + zopt="$zopt -a $align" + zopt="$zopt -T $runtime" + zopt="$zopt -P $passtime" + zopt="$zopt -s $size" + zopt="$zopt -f $workdir" + + cmd="$ZTEST $zopt $@" + desc="$(date '+%m/%d %T') $cmd" + echo "$desc" | tee -a ztest.history + echo "$desc" >>ztest.out + $cmd >>ztest.out 2>&1 + ztrc=$? + egrep '===|WARNING' ztest.out >>ztest.history + $ZDB -U $workdir/zpool.cache -DD ztest >>ztest.ddt + + store_core + + curtime=$(date +%s) +done + +echo "zloop finished, $foundcrashes crashes found" + +uptime >>ztest.out + +if [[ $foundcrashes -gt 0 ]]; then + exit 1 +fi |