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 45newfs $newfs_flags md$mdstart > /dev/null 46mount /dev/md$mdstart $mntpoint 47 48daemon sh -c "(cd $here/../testcases/swap; ./swap -t 5m -i 20 -h -l 100)" \ 49 > /dev/null 2>&1 50/tmp/link $mntpoint > /dev/null 2>&1 & 51 52m1=`vmstat -m | awk '/ mount/ {print $2}'` 53for i in `jot 100`; do 54 umount -f $mntpoint && 55 mount /dev/md$mdstart $mntpoint 56 sleep .1 57done 58m2=`vmstat -m | awk '/ mount/ {print $2}'` 59pkill -9 link 60while pgrep -q swap; do 61 pkill -9 swap 62done 63wait 64 65while mount | grep $mntpoint | grep -q /dev/md; do 66 umount $mntpoint || sleep 1 67done 68mdconfig -d -u $mdstart 69 70[ -d "$mntpoint" ] && (cd $mntpoint && find . -delete) 71rm -f /tmp/link 72leak=$((m2 - m1)) 73[ $leak -gt 2 ] && 74 { echo "Leaked $leak InUse \"mount\""; s=1; vmstat -m | \ 75 sed -n '1p;/ mount/p'; } || 76 s=0 77exit $s 78