xref: /freebsd/tools/test/stress2/misc/snap7.sh (revision 4d846d26)
1#!/bin/sh
2
3#
4# Copyright (c) 2008, 2011 Peter Holm <pho@FreeBSD.org>
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
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.
15#
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
26# SUCH DAMAGE.
27#
28
29[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
30
31. ../default.cfg
32
33# Test with unmount and paralless access to mountpoint
34# 20070508 page fault in g_io_request+0xa6
35
36mount | grep -q "on /tmp (ufs," || exit 0
37mount | grep -q "/dev/md$mdstart on $mntpoint" && umount $mntpoint
38rm -f /tmp/.snap/stress2.1
39trap "rm -f /tmp/.snap/stress2.1" 0
40mount | grep "$mntpoint" | grep -q md$mdstart && umount $mntpoint
41mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart
42
43start=`date '+%s'`
44while [ `date '+%s'` -lt $((start + 1200)) ]; do
45   mksnap_ffs /tmp /tmp/.snap/stress2.1
46   mdconfig -a -t vnode -f /tmp/.snap/stress2.1 -u $mdstart -o readonly
47   sh -c "while true; do ls $mntpoint > /dev/null;done" &
48   for i in `jot 64`; do
49      mount -o ro /dev/md$mdstart $mntpoint 2>/dev/null
50      umount $mntpoint 2>/dev/null
51   done
52   kill $!
53   wait
54   while mount | grep -q "/dev/md$mdstart on $mntpoint"; do
55      umount $mntpoint 2>/dev/null
56   done
57   mdconfig -d -u $mdstart
58   rm -f /tmp/.snap/stress2.1
59done
60