1#!/bin/sh 2 3# 4# Copyright (c) 2008 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 recursive flushes in bdwrite(). 30 31[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 32 33. ../default.cfg 34 35snap() { 36 for i in `jot 5`; do 37 mksnap_ffs $1 $2 38 [ $? -eq 0 ] && break 39 done 40} 41 42mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 43mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 44mdconfig -a -t swap -s 4g -u $mdstart || exit 1 45newfs $newfs_flags md$mdstart > /dev/null 46mount /dev/md$mdstart $mntpoint 47 48old=`sysctl vfs.recursiveflushes | awk '{print $NF}'` 49cd $mntpoint 50rm -f $mntpoint/.snap/stress2.* 51snap $mntpoint $mntpoint/.snap/stress2.1 52snap $mntpoint $mntpoint/.snap/stress2.2 53snap $mntpoint $mntpoint/.snap/stress2.3 54snap $mntpoint $mntpoint/.snap/stress2.4 55snap $mntpoint $mntpoint/.snap/stress2.5 56 57for i in `jot 32`; do 58 # Create 32 Mb files 59 dd if=/dev/zero of=big.$i bs=16k count=2048 status=none 60done 61wait 62for i in `jot 32`; do 63 rm -f big.$i 64done 65 66rm -f $mntpoint/.snap/stress2.* 67new=`sysctl vfs.recursiveflushes | awk '{print $NF}'` 68[ $old != $new ] && echo "vfs.recursiveflushes changed from $old to $new" 69 70cd / 71while mount | grep $mntpoint | grep -q /dev/md; do 72 umount $mntpoint || sleep 1 73done 74mdconfig -d -u $mdstart 75