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#!/bin/sh
#
# Copyright (c) 2008 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.
#
# Page fault seen in fdesc_allocvp+0x8f:
# http://people.freebsd.org/~pho/stress/log/fdescfs-2.txt
# Fixed by r279401
# https://people.freebsd.org/~pho/stress/log/fdescfs-3.txt
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
mounts=15 # Number of parallel scripts
cont=/tmp/fdescfs.continue
if [ $# -eq 0 ]; then
kldstat -v | grep -q fdescfs || { kldload fdescfs.ko; unload=1; }
touch $cont
# start the parallel tests
for i in `jot $mounts`; do
[ -d ${mntpoint}$i ] || mkdir -p ${mntpoint}$i
./$0 $i &
./$0 find &
done
wait
[ $unload ] && kldunload fdescfs.ko
exit 0
else
if [ $1 = find ]; then
exec 6< /dev/zero
exec 7< /dev/zero
exec 8< /dev/zero
exec 9< /dev/zero
while [ -r $cont ]; do
ls -l ${mntpoint}* > /dev/null 2>&1
done
else
# The test: Parallel mount and unmounts
start=`date '+%s'`
while [ `date '+%s'` -lt $((start + 300)) ]; do
mount -t fdescfs null ${mntpoint}$1
while mount | grep -wq ${mntpoint}$1; do
umount -f ${mntpoint}$1 > /dev/null 2>&1
done
done
rm -f $cont
fi
fi
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