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#!/bin/sh
#
# Copyright (c) 2008, 2011 Peter Holm <pho@FreeBSD.org>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# "panic: snapacct_ufs2: bad block" seen:
# https://people.freebsd.org/~pho/stress/log/snap5-1.txt
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
mount | grep -q "on /tmp (ufs," || exit 0
mnt2=$mntpoint
[ ! -d $mnt2 ] && mkdir $mnt2
mkdir -p /tmp/.snap
trap "rm -f /tmp/.snap/stress2" 0
start=`date '+%s'`
while [ `date '+%s'` -lt $((start + 600)) ]; do
if mount | grep -q "/dev/md$mdstart on $mnt2"; then
umount $mnt2 || exit 2
fi
if mdconfig -l | grep -q md$mdstart; then
mdconfig -d -u $mdstart || exit 3
fi
rm -f /tmp/.snap/stress2
mksnap_ffs /tmp /tmp/.snap/stress2 || continue
mdconfig -a -t vnode -f /tmp/.snap/stress2 -u $mdstart -o readonly ||
exit 4
mount -o ro /dev/md$mdstart $mnt2 || exit 5
ls -l $mnt2 > /dev/null
sleep `jot -r 1 0 119`
done
mount | grep -q "/dev/md$mdstart on $mnt2" && umount $mnt2
mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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