1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2021 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29# Test scenario from D17599 "Fix for double free when deleting entries from 30# epoch managed lists" 31# by Hans Petter Selasky <hselasky@freebsd.org> 32 33# Page fault in nd6_dad_timer+0x6b seen: 34# https://people.freebsd.org/~pho/stress/log/ifconfig2.txt 35# https://people.freebsd.org/~pho/stress/log/log0051.txt 36 37[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 38if=`ifconfig | grep -w mtu | grep -v RUNNING | sed 's/:.*//' | head -1` 39[ -z "$if" ] && 40 if=`ifconfig | \ 41 awk '/^[a-z].*: / {gsub(":", ""); ifn = $1}; /no car/{print ifn; exit}'` 42 43[ -z "$if" ] && exit 0 44echo "Using $if for test." 45ifconfig $if | grep -q RUNNING && running=1 46 47sync=/tmp/`basename $0`.sync 48rm -f $sync 49for i in `jot 5`; do 50 ( 51 while [ ! -f $sync ]; do 52 sleep .1 53 done 54 while [ -f $sync ]; do 55 ifconfig $if.$i create 56 ifconfig $if.$i inet 224.0.0.$i netmask 255.255.255.0 57 ifconfig $if.$i destroy 58 done 59 ) > /dev/null 2>&1 & 60done 61touch $sync 62sleep 120 63rm -f $sync 64wait 65[ $running ] || ifconfig $if down 66 67exit 0 68