Date: Sat, 25 Jul 2009 10:22:09 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r195864 - projects/stress2/misc Message-ID: <200907251022.n6PAM98R037059@svn.freebsd.org>
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Author: pho Date: Sat Jul 25 10:22:08 2009 New Revision: 195864 URL: http://svn.freebsd.org/changeset/base/195864 Log: Added test scenario for NFS intr mount and SIGSTOP. Added: projects/stress2/misc/nfs8.sh (contents, props changed) Added: projects/stress2/misc/nfs8.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ projects/stress2/misc/nfs8.sh Sat Jul 25 10:22:08 2009 (r195864) @@ -0,0 +1,58 @@ +#!/bin/sh + +# +# Copyright (c) 2009 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. +# +# $FreeBSD$ +# + +# Test scenario for a lock cascade problem with sending SIGSTOP to processes +# accessing a NFS intr mount. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +[ ! -d $mntpoint ] && mkdir $mntpoint +mount | grep "$mntpoint" | grep nfs > /dev/null && umount $mntpoint +mount -t nfs -o nfsv3,tcp,nolockd -o retrycnt=3 -o intr -o soft -o rw 127.0.0.1:/tmp $mntpoint + +pids="" +for i in `jot 10`; do + find $mntpoint > /dev/null 2>&1 & + sleep 0.1 + kill -s STOP $! + pids="$pids $!" +done + +umount $mntpoint 2>&1 | grep -v "Device busy" +while mount | grep -q $mntpoint; do + umount -f $mntpoint > /dev/null 2>&1 +done + +kill -s CONT $pids +for i in `jot 10`; do + wait +done
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