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4ed955e280
The default 128M vdev size used by zloop.sh isn't always large enough and can result in ENOSPC failures which suspend the pool. Increase the default size to 512M and provide a -s option which can be used to specify an alternate size. This does increase the free space requirements to run zloop.sh. However, since the vdevs are sparse 4x the space is not required. Reviewed-by: Don Brady <don.brady@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #6758
256 lines
6.4 KiB
Bash
Executable File
256 lines
6.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# CDDL HEADER START
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#
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# This file and its contents are supplied under the terms of the
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# Common Development and Distribution License ("CDDL"), version 1.0.
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# You may only use this file in accordance with the terms of version
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# 1.0 of the CDDL.
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#
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# A full copy of the text of the CDDL should have accompanied this
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# source. A copy of the CDDL is also available via the Internet at
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# http://www.illumos.org/license/CDDL.
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#
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# CDDL HEADER END
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#
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#
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# Copyright (c) 2015 by Delphix. All rights reserved.
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# Copyright (C) 2016 Lawrence Livermore National Security, LLC.
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#
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basedir=$(dirname "$0")
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SCRIPT_COMMON=common.sh
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if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
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. "${basedir}/${SCRIPT_COMMON}"
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else
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echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
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fi
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# shellcheck disable=SC2034
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PROG=zloop.sh
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DEFAULTWORKDIR=/var/tmp
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DEFAULTCOREDIR=/var/tmp/zloop
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function usage
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{
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echo -e "\n$0 [-t <timeout>] [ -s <vdev size> ] [-c <dump directory>]" \
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"[ -- [extra ztest parameters]]\n" \
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"\n" \
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" This script runs ztest repeatedly with randomized arguments.\n" \
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" If a crash is encountered, the ztest logs, any associated\n" \
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" vdev files, and core file (if one exists) are moved to the\n" \
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" output directory ($DEFAULTCOREDIR by default). Any options\n" \
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" after the -- end-of-options marker will be passed to ztest.\n" \
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"\n" \
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" Options:\n" \
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" -t Total time to loop for, in seconds. If not provided,\n" \
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" zloop runs forever.\n" \
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" -s Size of vdev devices.\n" \
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" -f Specify working directory for ztest vdev files.\n" \
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" -c Specify a core dump directory to use.\n" \
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" -h Print this help message.\n" \
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"" >&2
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}
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function or_die
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{
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# shellcheck disable=SC2068
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$@
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# shellcheck disable=SC2181
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if [[ $? -ne 0 ]]; then
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# shellcheck disable=SC2145
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echo "Command failed: $@"
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exit 1
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fi
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}
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# core file helpers
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origcorepattern="$(cat /proc/sys/kernel/core_pattern)"
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coreglob="$(egrep -o '^([^|%[:space:]]*)' /proc/sys/kernel/core_pattern)*"
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if [[ $coreglob = "*" ]]; then
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echo "Setting core file pattern..."
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echo "core" > /proc/sys/kernel/core_pattern
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coreglob="$(egrep -o '^([^|%[:space:]]*)' \
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/proc/sys/kernel/core_pattern)*"
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fi
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function core_file
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{
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# shellcheck disable=SC2012 disable=2086
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printf "%s" "$(ls -tr1 $coreglob 2> /dev/null | head -1)"
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}
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function core_prog
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{
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prog=$ZTEST
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core_id=$($GDB --batch -c "$1" | grep "Core was generated by" | \
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tr \' ' ')
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# shellcheck disable=SC2076
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if [[ "$core_id" =~ "zdb " ]]; then
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prog=$ZDB
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fi
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printf "%s" "$prog"
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}
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function store_core
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{
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core="$(core_file)"
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if [[ $ztrc -ne 0 ]] || [[ -f "$core" ]]; then
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coreid=$(date "+zloop-%y%m%d-%H%M%S")
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foundcrashes=$((foundcrashes + 1))
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dest=$coredir/$coreid
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or_die mkdir -p "$dest"
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or_die mkdir -p "$dest/vdev"
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echo "*** ztest crash found - moving logs to $dest"
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or_die mv ztest.history "$dest/"
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or_die mv ztest.ddt "$dest/"
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or_die mv ztest.out "$dest/"
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or_die mv "$workdir/ztest*" "$dest/vdev/"
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or_die mv "$workdir/zpool.cache" "$dest/vdev/"
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# check for core
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if [[ -f "$core" ]]; then
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coreprog=$(core_prog "$core")
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corestatus=$($GDB --batch --quiet \
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-ex "set print thread-events off" \
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-ex "printf \"*\n* Backtrace \n*\n\"" \
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-ex "bt" \
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-ex "printf \"*\n* Libraries \n*\n\"" \
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-ex "info sharedlib" \
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-ex "printf \"*\n* Threads (full) \n*\n\"" \
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-ex "info threads" \
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-ex "printf \"*\n* Backtraces \n*\n\"" \
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-ex "thread apply all bt" \
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-ex "printf \"*\n* Backtraces (full) \n*\n\"" \
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-ex "thread apply all bt full" \
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-ex "quit" "$coreprog" "$core" | grep -v "New LWP")
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# Dump core + logs to stored directory
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echo "$corestatus" >>"$dest/status"
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or_die mv "$core" "$dest/"
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# Record info in cores logfile
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echo "*** core @ $coredir/$coreid/$core:" | \
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tee -a ztest.cores
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echo "$corestatus" | tee -a ztest.cores
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echo "" | tee -a ztest.cores
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fi
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echo "continuing..."
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fi
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}
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# parse arguments
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# expected format: zloop [-t timeout] [-c coredir] [-- extra ztest args]
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coredir=$DEFAULTCOREDIR
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workdir=$DEFAULTWORKDIR
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timeout=0
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size="512m"
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while getopts ":ht:s:c:f:" opt; do
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case $opt in
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t ) [[ $OPTARG -gt 0 ]] && timeout=$OPTARG ;;
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s ) [[ $OPTARG ]] && size=$OPTARG ;;
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c ) [[ $OPTARG ]] && coredir=$OPTARG ;;
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f ) [[ $OPTARG ]] && workdir=$(readlink -f "$OPTARG") ;;
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h ) usage
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exit 2
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;;
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* ) echo "Invalid argument: -$OPTARG";
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usage
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exit 1
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esac
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done
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# pass remaining arguments on to ztest
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shift $((OPTIND - 1))
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# enable core dumps
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ulimit -c unlimited
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if [[ -f "$(core_file)" ]]; then
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echo -n "There's a core dump here you might want to look at first... "
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core_file
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exit 1
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fi
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if [[ ! -d $coredir ]]; then
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echo "core dump directory ($coredir) does not exist, creating it."
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or_die mkdir -p "$coredir"
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fi
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if [[ ! -w $coredir ]]; then
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echo "core dump directory ($coredir) is not writable."
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exit 1
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fi
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or_die rm -f ztest.history
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or_die rm -f ztest.ddt
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or_die rm -f ztest.cores
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ztrc=0 # ztest return value
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foundcrashes=0 # number of crashes found so far
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starttime=$(date +%s)
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curtime=$starttime
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# if no timeout was specified, loop forever.
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while [[ $timeout -eq 0 ]] || [[ $curtime -le $((starttime + timeout)) ]]; do
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zopt="-VVVVV"
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# switch between common arrangements & fully randomized
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if [[ $((RANDOM % 2)) -eq 0 ]]; then
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mirrors=2
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raidz=0
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parity=1
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vdevs=2
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else
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mirrors=$(((RANDOM % 3) * 1))
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parity=$(((RANDOM % 3) + 1))
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raidz=$((((RANDOM % 9) + parity + 1) * (RANDOM % 2)))
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vdevs=$(((RANDOM % 3) + 3))
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fi
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align=$(((RANDOM % 2) * 3 + 9))
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runtime=$((RANDOM % 100))
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passtime=$((RANDOM % (runtime / 3 + 1) + 10))
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zopt="$zopt -m $mirrors"
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zopt="$zopt -r $raidz"
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zopt="$zopt -R $parity"
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zopt="$zopt -v $vdevs"
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zopt="$zopt -a $align"
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zopt="$zopt -T $runtime"
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zopt="$zopt -P $passtime"
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zopt="$zopt -s $size"
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zopt="$zopt -f $workdir"
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# shellcheck disable=SC2124
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cmd="$ZTEST $zopt $@"
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desc="$(date '+%m/%d %T') $cmd"
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echo "$desc" | tee -a ztest.history
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echo "$desc" >>ztest.out
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$cmd >>ztest.out 2>&1
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ztrc=$?
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egrep '===|WARNING' ztest.out >>ztest.history
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$ZDB -U "$workdir/zpool.cache" -DD ztest >>ztest.ddt
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store_core
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curtime=$(date +%s)
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done
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echo "zloop finished, $foundcrashes crashes found"
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#restore core pattern
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echo "$origcorepattern" > /proc/sys/kernel/core_pattern
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uptime >>ztest.out
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if [[ $foundcrashes -gt 0 ]]; then
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exit 1
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fi
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