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
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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 # phk has seen freezes with this newfs option: "-b 32768 -f 4096 -O2"
33 # Deadlocks seen with this test and:
34 # newfs -b 4096 -f 4096 -O2 md0c on a 128 Mb FS
35 # newfs -b 4096 -f 1024 -O2 md0c on a 64 Mb FS
36 # 20070505 newfs -b 4096 -f 4096 -O2 md0c on a 32 Mb FS: panic: lockmgr: locking against myself
39 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
43 size=$((32 * 1024 * 1024))
44 opt="-O2" # newfs option. Eg. -U
46 mount | grep "$mntpoint" | grep md${mdstart}${part} > /dev/null && umount $mntpoint
47 mdconfig -l | grep md${mdstart} > /dev/null && mdconfig -d -u ${mdstart}
49 while [ $size -le $((128 * 1024 * 1024)) ]; do
50 truncate -s $size $diskimage
51 mdconfig -a -t vnode -f $diskimage -u ${mdstart}
52 disklabel -r -w md${mdstart} auto
54 while [ $blocksize -le 65536 ]; do
56 fragsize=$((blocksize / i))
57 echo "newfs -b $blocksize -f $fragsize $opt md${mdstart}${part} on a $((size / 1024 / 1024)) Mb FS"
58 newfs -b $blocksize -f $fragsize $opt md${mdstart}${part} > /dev/null 2>&1
59 mount /dev/md${mdstart}${part} $mntpoint
60 export RUNDIR=$mntpoint/stressX
62 (cd /home/pho/stress2; ./run.sh disk.cfg)
63 while mount | grep "$mntpoint" | grep -q md${mdstart}${part}; do
64 umount $mntpoint > /dev/null 2>&1
67 blocksize=$((blocksize * 2))
69 mdconfig -d -u ${mdstart}
70 size=$((size + 32 * 1024 * 1024))