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# Page fault seen: 30# http://people.freebsd.org/~pho/stress/log/lockf.txt 31 32[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 33 34. ../default.cfg 35 36[ -z "$nfs_export" ] && exit 0 37ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1 || 38 exit 0 39 40pgrep -q lockd || { echo "lockd not running"; exit 0; } 41trap "rm -f /tmp/$0.$$.*" EXIT INT 42mount | grep "$mntpoint" | grep nfs > /dev/null && umount $mntpoint 43 44mount -t nfs -o tcp -o retrycnt=3 -o intr -o soft \ 45 -o rw $nfs_export $mntpoint 46sleep .5 47lockf -t 10 $mntpoint/$$.lock sleep 2 || fail=1 48umount $mntpoint 49[ $fail ] && exit 1 50 51start=`date '+%s'` 52while [ $((`date '+%s'` - start)) -lt 300 ] ; do 53 mount -t nfs -o tcp -o retrycnt=3 -o intr -o soft \ 54 -o rw $nfs_export $mntpoint || break 55 sleep 1 56 57 for j in `jot 50`; do 58 lockf -t 10 $mntpoint/$0.$$.$j sleep 3 & 59 done 60 61 while mount | grep -q $mntpoint; do 62 umount -f $mntpoint > /dev/null 2>&1 63 done 64 wait 65done 2>/dev/null 66mount -t nfs -o tcp -o retrycnt=3 -o intr -o soft \ 67 -o rw $nfs_export $mntpoint || break 68sleep .5 69rm $mntpoint/$0.* 70while mount | grep -q $mntpoint; do 71 umount -f $mntpoint > /dev/null 2>&1 72done 73exit 0 74