1#!/bin/sh 2 3# 4# Copyright (c) 2017 Dell EMC Isilon 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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 30 31# Test scenario by Mark Johnston <markj@FreeBSD.org> 32 33# Page fault seen: 34# https://people.freebsd.org/~pho/stress/log/graid1_3.txt 35 36. ../default.cfg 37 38gmirror load > /dev/null 2>&1 && unload=1 39[ -c /dev/mirror/markj-mirror ] && 40 { gmirror stop markj-mirror; gmirror destroy markj-mirror; } 41old=`sysctl -n kern.geom.mirror.debug` 42sysctl kern.geom.mirror.debug=-1 | grep -q -- -1 || 43 sysctl kern.geom.mirror.debug=$old > /dev/null 44u1=$mdstart 45u2=$((mdstart + 1)) 46size=$((5 * 1024 * 1024)) 47for u in $u1 $u2; do 48 dd if=/dev/zero of=/tmp/graid1_2_di$u bs=$size count=1 \ 49 status=none 50 [ -c /dev/md$u ] && mdconfig -d -u $u 51 mdconfig -a -t vnode -f /tmp/graid1_2_di$u -u $u 52done 53set -e 54 55( 56gpart create -s GPT md$u1 57gpart create -s GPT md$u2 58gpart add -t freebsd-ufs -s 1M md$u1 59gpart add -t freebsd-ufs -s 1M md$u2 60) > /dev/null 61 62gmirror label markj-mirror md${u1}p1 63set +e 64 65while true; do 66 gmirror label markj-mirror md${u1}p1 67 gmirror destroy markj-mirror 68done 2>/dev/null & 69pid1=$! 70while true; do 71 gmirror insert markj-mirror md${u2}p1 72 gmirror remove markj-mirror md${u2}p1 73done 2>/dev/null & 74pid2=$! 75 76for i in `jot 60`; do 77 gmirror list markj-mirror 78 sleep 1 79done > /dev/null 2>&1 80sleep 60 81 82kill $pid1 $pid2 83wait 84sleep 1 85 86gmirror remove markj-mirror md${u2}p1 > /dev/null 2>&1 87gmirror destroy markj-mirror > /dev/null 2>&1 88 89mdconfig -d -u $u1 || exit 1 90mdconfig -d -u $u2 || exit 1 91rm -f /tmp/graid1_2_di* 92[ $unload ] && gmirror unload 93exit 0 94