4 # Copyright (c) 2009 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 # Deadlock seen when deleting the snapshots during an "ls" of the FS
33 # Based on test scenario by John Kozubik <john at kozubik dot com>
34 # kern/94769: [ufs] Multiple file deletions on multi-snapshotted filesystems
37 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
41 mount |
grep -q /dev
/md
${mdstart}$part && umount
-f /dev
/md
${mdstart}$part
42 mdconfig
-l |
grep -q md
${mdstart} && mdconfig
-d -u $mdstart
47 [ `df -k $(dirname $diskimage) | tail -1 | awk '{print $4'}` -lt $
((size
* 1024 * 1024)) ] && \
48 echo "Not enough disk space." && exit 1
49 truncate
-s ${size}G
$diskimage
51 mdconfig
-a -t vnode
-f $diskimage -u $mdstart
52 bsdlabel
-w md
$mdstart auto
53 newfs
-O2 -U md
${mdstart}${part} > /dev
/null
54 mount
/dev
/md
${mdstart}${part} $mntpoint
57 cc
-o /tmp
/fstool
-Wall ..
/tools
/fstool.c
58 for i
in `jot $parallel`; do
59 (mkdir
$mntpoint/test$i; cd $mntpoint/test$i; /tmp
/fstool
-l -f 50 -n 500 -s 8k
) &
61 for i
in `jot $parallel`; do
66 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap1
67 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap2
68 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap3
69 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap4
70 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap5
71 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap6
72 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap7
73 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap8
74 mksnap_ffs
$mntpoint $mntpoint/.snap
/snap9
76 for i
in `jot $parallel`; do
77 rm -rf $mntpoint/test$i &
79 for i
in `jot $parallel`; do
83 rm -rf $mntpoint/.snap
/snap?
&
86 ls -lsrt $mntpoint > /dev
/null
2>&1
91 umount
/dev
/md
${mdstart}$part
93 mount |
grep -q /dev
/md
${mdstart}$part && umount
-f /dev
/md
${mdstart}$part
94 mdconfig
-l |
grep -q md
${mdstart} && mdconfig
-d -u $mdstart