xref: /freebsd/tools/test/stress2/misc/backingstore3.sh (revision d4eeb02986980bf33dd56c41ceb9fc5f180c0d47)
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 $m1
52
53newfs md$m1 > /dev/null 2>&1
54mount /dev/md$m1 $mntpoint$m1
55
56truncate -s 500M $mntpoint$m1/diskimage
57mdconfig -a -t vnode -f $mntpoint$m1/diskimage -u $m2
58
59newfs md$m2 > /dev/null 2>&1
60mount /dev/md$m2 $mntpoint$m2
61
62dd if=/dev/zero of=$mntpoint$m2/file bs=1m > /dev/null 2>&1
63
64# Reversed umount sequence:
65umount -f /dev/md$m1
66umount -f /dev/md$m2
67
68mount | grep "$mntpoint" | grep -q md$m2 && umount $mntpoint$m2
69mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
70mount | grep "$mntpoint" | grep -q md$m1 && umount $mntpoint$m1
71mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
72