72 lines
2.3 KiB
Bash
Executable File
72 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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#
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# Copyright (c) 2019 Peter Holm
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# A "(cd /mnt; umount /mnt)" test scenario, which triggered random memory
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# corruptions.
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# Page fault seen: https://people.freebsd.org/~pho/stress/log/kostik1230.txt
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# First seen with r354204
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# Initial fix by r354367
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. ../default.cfg
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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mount | grep -q "on $mntpoint " && umount $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 1g -u $mdstart || exit 1
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for opt in "-U" "-j"; do
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echo "newfs $opt md$mdstart"
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newfs $opt md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint || exit 1
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pids=""
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for i in `jot 3`; do
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while true; do
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dd if=/dev/zero of=$mntpoint/$i bs=1m \
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count=`jot -r 1 1 10` status=none
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done &
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pids="$pids $!"
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done
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start=`date +%s`
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while [ $((`date +%s` - start)) -lt 60 ]; do
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(cd $mntpoint; umount $mntpoint)
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done > /dev/null 2>&1
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kill $pids
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wait
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while true; do
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umount $mntpoint && break
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sleep 1
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done
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done
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mdconfig -d -u $mdstart
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exit 0
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