4 # Copyright (c) 2013 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
29 # Deadlock seen: http://people.freebsd.org/~pho/stress/log/gjournal3.txt
32 # panic: Bio not on queue
33 # https://people.freebsd.org/~pho/stress/log/gjournal3-2.txt
36 # gjournal is good for exposing the suspension problems. The frequency
37 # of the suspensions called from the gjournal is not achievable by other
38 # methods, so the tests allow to uncover the problems. More, the gjournal
39 # only establishes the suspension, without snapshotting, which also
40 # makes it easier to see the issues.
42 # gjournal / ffs snapshot suspension deadlock:
43 # https://people.freebsd.org/~pho/stress/log/gjournal3-4.txt
44 # Originally reported as kern/164252.
46 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
50 [ `swapinfo | wc -l` -eq 1 ] && exit 0
53 [ $((`sysctl -n hw.usermem` / 1024 / 1024 / 1024)) -le ${size%g} ] && exit 0
54 [ `swapinfo -k | tail -1 | awk '{print int($4/1024/1024)}'` -lt \
56 mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
57 [ -c /dev/mdmd$mdstart ] && mdconfig -d -u $mdstart
58 mdconfig -a -t swap -s $size -u $mdstart || exit 1
61 gjournal label -s $jsize md$mdstart
63 newfs -J /dev/md$mdstart.journal > /dev/null
64 mount -o async /dev/md$mdstart.journal $mntpoint
68 export RUNDIR=$mntpoint/stressX
70 su $testuser -c 'cd ../testcases/rw
71 ./rw -t 2m -i 10 -l 100 > /dev/null 2>&1' &
72 while kill -0 $! 2>/dev/null; do
73 mksnap_ffs $mntpoint $mntpoint/.snap/snap
75 rm -f $mntpoint/.snap/snap
80 while mount | grep $mntpoint | grep -q /dev/md; do
81 umount $mntpoint || sleep 1
83 gjournal stop md$mdstart
85 mdconfig -d -u $mdstart