1#!/bin/sh 2 3# 4# Copyright (c) 2008 Peter Holm <pho@FreeBSD.org> 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# $FreeBSD$ 29# 30 31# Stress test by performing parallel calls to mount and umount. Alternate 32# between forced and non-forced unmounts 33 34[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 35 36. ../default.cfg 37 38mounts=15 # Number of parallel scripts 39D=$diskimage 40 41if [ $# -eq 0 ]; then 42 for i in `jot $mounts`; do 43 m=$(( i + mdstart - 1 )) 44 [ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m 45 mount | grep "${mntpoint}" | grep -q md$m && umount ${mntpoint}$m 46 mdconfig -l | grep -q md$m && mdconfig -d -u $m 47 48 dd if=/dev/zero of=$D$m bs=1m count=1 > /dev/null 2>&1 49 mdconfig -a -t vnode -f $D$m -u $m 50 bsdlabel -w md$m auto 51 newfs md${m}${part} > /dev/null 2>&1 52 done 53 54 # start the parallel tests 55 for i in `jot $mounts`; do 56 m=$(( i + mdstart - 1 )) 57 ./$0 $m & 58 done 59 60 61 for i in `jot $mounts`; do 62 wait 63 done 64 65 for i in `jot $mounts`; do 66 m=$(( i + mdstart - 1 )) 67 mdconfig -d -u $m 68 rm -f $D$m 69 done 70 71else 72 # The test: Parallel mount and unmounts 73 for i in `jot 1024`; do 74 m=$1 75 opt=`[ $(( m % 2 )) -eq 0 ] && echo -f` 76 mount /dev/md${m}${part} ${mntpoint}$m 77 while mount | grep -q ${mntpoint}$m; do 78 umount $opt ${mntpoint}$m > /dev/null 2>&1 79 done 80 done 81fi 82