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#!/bin/sh
#
# Copyright (c) 2014 EMC Corp.
# 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.
#
# Parallel mount and umount of file systems. Nullfs version.
# "panic: Lock (lockmgr) null not locked @ kern/vfs_default.c:523." seen.
# http://people.freebsd.org/~pho/stress/log/kostik698.txt
# Fixed by r269708.
# Not fixed: https://people.freebsd.org/~pho/stress/log/kostik798.txt
# https://people.freebsd.org/~pho/stress/log/kostik856.txt
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
N=`sysctl -n hw.ncpu`
[ $N -gt 32 ] && N=32 # Arbitrary cap
usermem=`sysctl -n hw.usermem`
[ `swapinfo | wc -l` -eq 1 ] && usermem=$((usermem/100*80))
size=$((usermem / 1024 / 1024 - 2))
CONT=/tmp/crossmp4.continue
mounts=$N # Number of parallel scripts
if [ $# -eq 0 ]; then
mount | grep "$mntpoint" | grep -q md && umount $mntpoint
mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
mdconfig -a -t swap -s ${size}m -u $mdstart
newfs $newfs_flags md$mdstart > /dev/null 2>&1
mount /dev/md$mdstart $mntpoint
# start the parallel tests
for i in `jot $mounts`; do
m=$(( i + mdstart - 1 ))
./$0 $m &
./$0 find &
done
wait
while mount | grep -q "on $mntpoint "; do
umount $mntpoint > /dev/null 2>&1 || sleep 1
done
mdconfig -d -u $mdstart
exit 0
else
touch $CONT
if [ $1 = find ]; then
while [ -f $CONT ]; do
find ${mntpoint}* -type f > /dev/null 2>&1
done
else
m=$1
set `df -ik $mntpoint | tail -1 | awk '{print $4,$7}'`
export KBLOCKS=$(($1 / N))
export INODES=$(($2 / N))
export runRUNTIME=1m
export INCARNATIONS=4
# The test: Parallel mount and unmounts
for i in `jot 4`; do
[ ! -d ${mntpoint}$m ] && mkdir ${mntpoint}$m
mount -t nullfs $mntpoint ${mntpoint}$m
mkdir -p ${mntpoint}$m/$m
chmod 777 ${mntpoint}$m/$m
export RUNDIR=${mntpoint}$m/$m/stressX
export CTRLDIR=${mntpoint}$m/$m/stressX.control
(cd ${mntpoint}$m/$m && find . -delete)
su $testuser -c 'cd ..; ./run.sh disk.cfg' > \
/dev/null 2>&1 &
sleep 30
while mount | grep -q "on ${mntpoint}$m "; do
opt=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f")
umount $opt ${mntpoint}$m > /dev/null 2>&1
done
wait
done
rm -f $CONT
fi
fi
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