1#!/bin/sh 2 3# 4# Copyright (c) 2014 EMC Corp. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# Test vm.overcommit 30 31# Setting bit 0 of the vm.overcommit sysctl causes the virtual memory 32# system to return failure to the process when allocation of memory 33# causes vm.swap_reserved to exceed vm.swap_total. 34 35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 36 37old=`sysctl -n vm.overcommit` 38[ $old -eq 1 ] && exit 39 40sysctl vm.overcommit=1 41 42. ../default.cfg 43 44mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 45mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 46mdconfig -a -t swap -s 2g -u $mdstart 47newfs $newfs_flags md$mdstart > /dev/null 48mount /dev/md$mdstart $mntpoint 49chmod 777 $mntpoint 50 51export runRUNTIME=10m 52export RUNDIR=$mntpoint/stressX 53 54timeout 11m \ 55 su $testuser -c 'cd ..; ./run.sh marcus.cfg' 56 57while mount | grep "on $mntpoint " | grep -q /dev/md; do 58 umount $mntpoint || sleep 1 59done 60mdconfig -d -u $mdstart 61 62sysctl vm.overcommit=$old 63