Date: Sun, 16 Jul 2017 08:50:48 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r321043 - user/pho/stress2/misc Message-ID: <201707160850.v6G8omo3049246@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: pho Date: Sun Jul 16 08:50:47 2017 New Revision: 321043 URL: https://svnweb.freebsd.org/changeset/base/321043 Log: Add a scenario for demonstrating memory leak of routetbl. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/routetbl.sh (contents, props changed) Added: user/pho/stress2/misc/routetbl.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/routetbl.sh Sun Jul 16 08:50:47 2017 (r321043) @@ -0,0 +1,63 @@ +#!/bin/sh + +# +# Copyright (c) 2017 Dell EMC Isilon +# 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. +# +# $FreeBSD$ +# + +# Demonstrate memory leak of routetbl allegedly caused by use free() in +# vfs_free_addrlist_af(), instead of rn_detachhead(). +# "routetbl grew 3868" seen on amd64. + +. ../default.cfg +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +pgrep -q mountd || exit 0 +mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart +mdconfig -a -t swap -s 128m -u $mdstart || exit 1 +bsdlabel -w md$mdstart auto +newfs $newfs_flags md${mdstart}$part > /dev/null + +routetbl=`vmstat -m | grep routetbl | awk '{print $2}'` +s=0 +start=`date +%s` +while [ $((`date +%s` - start)) -lt 60 ]; do + mount /dev/md${mdstart}$part $mntpoint && + umount $mntpoint +done +routetbl=$((`vmstat -m | grep routetbl | awk '{print $2}'` - routetbl)) +[ $routetbl -gt 0 ] && + { echo "routetbl grew $routetbl"; s=1; } + +for i in `jot 6`; do + mount | grep -q "on $mntpoint " || break + umount $mntpoint && break || sleep 10 +done +[ $i -eq 6 ] && exit 1 +mdconfig -d -u $mdstart +rm -rf /tmp/template +exit $s
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201707160850.v6G8omo3049246>