xref: /freebsd/tools/test/stress2/misc/backingstore3.sh (revision 6ba2210ee039f2f12878c217bcf058e9c8b26b29)
1#!/bin/sh
2
3#
4# Copyright (c) 2009 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# Test unmount of a device that is already gone
30
31# Caused "panic: bundirty: buffer 0xdafaf2c4 still on queue 1"
32
33[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
34
35. ../default.cfg
36
37D=$diskimage
38export here=`pwd`
39
40m1=$mdstart
41m2=$((m1 + 1))
42mount | grep "$mntpoint" | grep -q md$m2 && umount ${mntpoint}$m2
43mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
44mount | grep "$mntpoint" | grep -q md$m1 && umount ${mntpoint}$m1
45mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
46[ -d ${mntpoint}$m1 ] || mkdir -p ${mntpoint}$m1
47[ -d ${mntpoint}$m2 ] || mkdir -p ${mntpoint}$m2
48
49dd if=/dev=zero of=$D$m bs=25m count=1 status=none || exit 1
50
51mdconfig -a -t vnode -f $D$m1 -u $m1
52
53bsdlabel -w md$m1 auto
54newfs md${m1}$part > /dev/null 2>&1
55mount /dev/md${m1}$part ${mntpoint}$m1
56
57truncate -s 500M ${mntpoint}$m1/diskimage
58mdconfig -a -t vnode -f ${mntpoint}$m1/diskimage -u $m2
59
60bsdlabel -w md$m2 auto
61newfs md${m2}$part > /dev/null 2>&1
62mount /dev/md${m2}$part ${mntpoint}$m2
63
64dd if=/dev/zero of=${mntpoint}$m2/file bs=1m > /dev/null 2>&1
65
66# Reversed umount sequence:
67umount -f /dev/md${m1}$part
68umount -f /dev/md${m2}$part
69
70mount | grep "$mntpoint" | grep -q md$m2 && umount ${mntpoint}$m2
71mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
72mount | grep "$mntpoint" | grep -q md$m1 && umount ${mntpoint}$m1
73mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
74