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 # Stress test by performing parallel calls to mount and umount. Alternate
32 # between forced and non-forced unmounts
34 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
38 mounts=15 # Number of parallel scripts
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 $m
48 dd if=/dev/zero of=$D$m bs=1m count=1 > /dev/null 2>&1
49 mdconfig -a -t vnode -f $D$m -u $m
51 newfs md${m}${part} > /dev/null 2>&1
54 # start the parallel tests
55 for i in `jot $mounts`; do
56 m=$(( i + mdstart - 1 ))
61 for i in `jot $mounts`; do
65 for i in `jot $mounts`; do
66 m=$(( i + mdstart - 1 ))
72 # The test: Parallel mount and unmounts
73 for i in `jot 1024`; do
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