1#!/bin/sh 2 3# 4# Copyright (c) 2008, 2011 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 29[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 30 31. ../default.cfg 32 33mount | grep -q "on /tmp (ufs," || exit 0 34mnt2=${mntpoint}2 35[ ! -d $mnt2 ] && mkdir $mnt2 36mount | grep -q "/dev/md$mdstart on $mnt2" && umount $mnt2 37mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 38rm -f /tmp/.snap/stress2 39trap "rm -f /tmp/.snap/stress2" 0 40 41start=`date '+%s'` 42while [ `date '+%s'` -lt $((start + 1200)) ]; do 43 date '+%T' 44 mksnap_ffs /tmp /tmp/.snap/stress2 45 mdconfig -a -t vnode -f /tmp/.snap/stress2 -u $mdstart -o readonly 46 mount -o ro /dev/md$mdstart $mnt2 47 48 ls -l $mnt2 > /dev/null 49 r=`head -c4 /dev/random | od -N2 -tu4 | sed -ne '1s/ *$//;1s/.* //p'` 50 sleep $(( r % 120 )) 51 52 umount $mnt2 53 mdconfig -d -u $mdstart 54 rm -f /tmp/.snap/stress2 55done 56