Date: Wed, 6 Nov 2019 06:38:34 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r354370 - user/pho/stress2/misc Message-ID: <201911060638.xA66cYKQ064103@repo.freebsd.org>
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Author: pho Date: Wed Nov 6 06:38:34 2019 New Revision: 354370 URL: https://svnweb.freebsd.org/changeset/base/354370 Log: Added a regression test. Added: user/pho/stress2/misc/umount4.sh (contents, props changed) Added: user/pho/stress2/misc/umount4.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/umount4.sh Wed Nov 6 06:38:34 2019 (r354370) @@ -0,0 +1,73 @@ +#!/bin/sh + +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# Copyright (c) 2019 Peter Holm +# +# 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. +# +# $FreeBSD$ +# + +# A "(cd /mnt; umount /mnt)" test scenario, which triggered random memory +# corruptions. + +# Page fault seen: https://people.freebsd.org/~pho/stress/log/kostik1230.txt +# First seen with r354204 +# Initial fix by r354367 + +. ../default.cfg +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +mount | grep -q "on $mntpoint " && umount $mntpoint +mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart + +mdconfig -a -t swap -s 1g -u $mdstart || exit 1 + +for opt in "-U" "-j"; do + echo "newfs $opt md$mdstart" + newfs $opt md$mdstart > /dev/null + mount /dev/md$mdstart $mntpoint || exit 1 + pids="" + for i in `jot 3`; do + while true; do + dd if=/dev/zero of=$mntpoint/$i bs=1m \ + count=`jot -r 1 1 10` status=none + done & + pids="$pids $!" + done + + start=`date +%s` + while [ $((`date +%s` - start)) -lt 60 ]; do + (cd $mntpoint; umount $mntpoint) + done > /dev/null 2>&1 + kill $pids + wait + + while true; do + umount $mntpoint && break + sleep 1 + done +done +mdconfig -d -u $mdstart +exit 0
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