4 # Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
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.
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
31 # Hunt for deadlock that could occur running umount and quota at the same time
33 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
37 mounts=15 # Number of parallel scripts
38 mdstart=$mdstart # Use md unit numbers from this point
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
50 mdconfig -a -t vnode -f $D$m -u $m
52 newfs md${m}${part} > /dev/null 2>&1
53 echo "/dev/md${m}${part} ${mntpoint}$m ufs rw,userquota 2 2" >> /etc/fstab
55 edquota -u -f ${mntpoint}$m -e ${mntpoint}$m:100000:110000:15000:16000 root
60 # start the parallel tests
62 for i in `jot $mounts`; do
63 m=$(( i + mdstart - 1 ))
68 for i in `jot $mounts`; do
72 for i in `jot $mounts`; do
73 m=$(( i + mdstart - 1 ))
78 mv /etc/fstab.save /etc/fstab
81 if [ $1 = find ]; then
82 while [ -r /tmp/$0 ]; do
84 quotaoff ${mntpoint}$2
86 echo "Done 1 @ `date '+%T'`"
89 # The test: Parallel mount and unmounts
90 for i in `jot 1024`; do
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
100 echo "Done 2 @ `date '+%T'`"