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
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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
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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
41 for i in `jot $mounts`; do
42 [ ! -d ${mntpoint}$i ] && mkdir ${mntpoint}$i
43 mount | grep "$mntpoint" | grep -q ${mntpoint}$i && umount ${mntpoint}$i
46 # start the parallel tests
47 for i in `jot $mounts`; do
52 for i in `jot $mounts`; do
56 for i in `jot $mounts`; do
57 umount ${mntpoint}$i > /dev/null 2>&1
61 # The test: Parallel mount and unmounts
62 for i in `jot 1024`; do
64 mount_nullfs /tmp ${mntpoint}$m > /dev/null 2>&1
65 opt=`[ $(( m % 2 )) -eq 0 ] && echo -f`
66 while mount | grep "$mntpoint" | grep -q ${mntpoint}$m; do
67 umount $opt ${mntpoint}$m > /dev/null 2>&1