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# Copy of link.sh with leak detection added 30 31[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 32 33. ../default.cfg 34 35here=`pwd` 36cd /tmp 37sed '1,/^EOF/d' < $here/link.sh > link.c 38mycc -o link -Wall -Wextra -O2 -g link.c || exit 1 39rm -f link.c 40 41mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 42[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 43 44mdconfig -a -t swap -s 1g -u $mdstart || exit 1 45bsdlabel -w md$mdstart auto 46newfs $newfs_flags md${mdstart}$part > /dev/null 47mount /dev/md${mdstart}$part $mntpoint 48 49daemon sh -c "(cd $here/../testcases/swap; ./swap -t 5m -i 20 -h -l 100)" \ 50 > /dev/null 2>&1 51/tmp/link $mntpoint > /dev/null 2>&1 & 52 53m1=`vmstat -m | awk '/ mount/ {print $2}'` 54for i in `jot 100`; do 55 umount -f $mntpoint && 56 mount /dev/md${mdstart}$part $mntpoint 57 sleep .1 58done 59m2=`vmstat -m | awk '/ mount/ {print $2}'` 60pkill -9 link 61while pgrep -q swap; do 62 pkill -9 swap 63done 64wait 65 66while mount | grep $mntpoint | grep -q /dev/md; do 67 umount $mntpoint || sleep 1 68done 69mdconfig -d -u $mdstart 70 71[ -d "$mntpoint" ] && (cd $mntpoint && find . -delete) 72rm -f /tmp/link 73leak=$((m2 - m1)) 74[ $leak -gt 2 ] && 75 { echo "Leaked $leak InUse \"mount\""; s=1; vmstat -m | \ 76 sed -n '1p;/ mount/p'; } || 77 s=0 78exit $s 79