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# Hunt for deadlock that could occur running umount and quota at the same time 32 33[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 34 35. ../default.cfg 36 37mounts=15 # Number of parallel scripts 38mdstart=$mdstart # Use md unit numbers from this point 39D=$diskimage 40 41if [ $# -eq 0 ]; then 42 cp -p /etc/fstab /etc/fstab.save 43 for i in `jot $mounts`; do 44 m=$(( i + mdstart - 1 )) 45 [ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m 46 mount | grep "$mntpoint" | grep -q md$m && umount ${mntpoint}$m 47 mdconfig -l | grep -q md$m && mdconfig -d -u $m 48 49 dede $D$m 1m 1 50 mdconfig -a -t vnode -f $D$m -u $m 51 bsdlabel -w md$m auto 52 newfs md${m}${part} > /dev/null 2>&1 53 echo "/dev/md${m}${part} ${mntpoint}$m ufs rw,userquota 2 2" >> /etc/fstab 54 mount ${mntpoint}$m 55 edquota -u -f ${mntpoint}$m -e ${mntpoint}$m:100000:110000:15000:16000 root 56 umount ${mntpoint}$m 57 done 58 sync;sync;sync 59 60 # start the parallel tests 61 touch /tmp/$0 62 for i in `jot $mounts`; do 63 m=$(( i + mdstart - 1 )) 64 ./$0 $m & 65 ./$0 find $m & 66 done 67 68 for i in `jot $mounts`; do 69 wait; wait 70 done 71 72 for i in `jot $mounts`; do 73 m=$(( i + mdstart - 1 )) 74 mdconfig -d -u $m 75 rm -f $D$m 76 done 77 78 mv /etc/fstab.save /etc/fstab 79 80else 81 if [ $1 = find ]; then 82 while [ -r /tmp/$0 ]; do 83 quotaon ${mntpoint}$2 84 quotaoff ${mntpoint}$2 85 done 86 echo "Done 1 @ `date '+%T'`" 87 else 88 89 # The test: Parallel mount and unmounts 90 for i in `jot 1024`; do 91 m=$1 92 opt=`[ $(( m % 2 )) -eq 0 ] && echo -f` 93 mount $opt /dev/md${m}${part} ${mntpoint}$m 94 while mount | grep -qw $mntpoint$m; do 95 opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f") 96 umount $opt ${mntpoint}$m > /dev/null 2>&1 97 done 98 done 99 rm -f /tmp/$0 100 echo "Done 2 @ `date '+%T'`" 101 fi 102fi 103