1#!/bin/sh 2# 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2021 Peter Holm <pho@FreeBSD.org> 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# 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# "panic: starting DAD on non-tentative address 0xfffff8010c311000" seen. 34# https://people.freebsd.org/~pho/stress/log/epoch.txt 35 36# Fatal trap 9: general protection fault while in kernel mode 37# https://people.freebsd.org/~pho/stress/log/epoch-2.txt 38 39[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 40if=`ifconfig | grep -w mtu | grep -v RUNNING | sed 's/:.*//' | head -1` 41[ -z "$if" ] && 42 if=`ifconfig | \ 43 awk '/^[a-z].*: / {gsub(":", ""); ifn = $1}; /no car/{print ifn; exit}'` 44 45[ -z "$if" ] && exit 0 46echo "Using $if for test." 47ifconfig $if | grep -q RUNNING && running=1 48 49start=`date +%s` 50while [ $((`date +%s` - start)) -lt 300 ]; do 51 for i in `jot 255`; do 52 (ifconfig $if.$i create 53 ifconfig $if.$i inet 224.0.0.$i netmask 255.255.255.0 54 ifconfig $if.$i destroy) > /dev/null 2>&1 & 55 done 56 wait 57done 58[ $running ] || ifconfig $if down 59 60exit 0 61