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#!/bin/sh
#
# Copyright (c) 2014 EMC Corp.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# MEMGUARD(9) test scenario
# http://people.freebsd.org/~pho/stress/log/memguard4.txt
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
sysctl vm | grep -q memguard || { echo "MEMGUARD(9) not enabled"; exit 1; }
mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
mdconfig -a -t swap -s 1g -u $mdstart || exit 1
bsdlabel -w md$mdstart auto
newfs $newfs_flags md${mdstart}$part > /dev/null
mount /dev/md${mdstart}$part $mntpoint
chmod 777 $mntpoint
export runRUNTIME=30s
export RUNDIR=$mntpoint/stressX
[ -d $RUNDIR ] || mkdir $RUNDIR
chmod 777 $RUNDIR
sysctl vm.memguard.options=3 > /dev/null
{ vmstat -m; echo dummy; } | sed '1d;s/ [0-9].*//;s/^ *//' | \
sed 's/ *$//' | tr '\n' ' ' | ../tools/shuffle | \
tr ' ' '\n' | head -10 | while read type; do
sysctl vm.memguard.desc="$type"
su $testuser -c 'cd ..; ./run.sh disk.cfg' > /dev/null
find /tmp/stressX.control/* $mntpoint/stressX/* -delete 2>/dev/null
done
sysctl vm.memguard.desc="" > /dev/null
sysctl vm.memguard.options=1 > /dev/null
while mount | grep $mntpoint | grep -q /dev/md; do
umount $mntpoint || sleep 1
done
mdconfig -d -u $mdstart
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