1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2021 Peter Holm 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 30# Fuzz test 31# Spending a long time in elf64_coredump() seen: 32# https://people.freebsd.org/~pho/stress/log/log0183.txt 33# Fixed by: b5cadc643e85 34 35. ../default.cfg 36[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 37 38dir=/tmp 39odir=`pwd` 40save=/tmp/elf.sh.img 41[ -f $save ] && { echo "$save exists"; exit 0; } 42cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1 43 44set -e 45mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint 46[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 47mdconfig -a -t swap -s 2g -u $mdstart 48newfs $newfs_flags md$mdstart > /dev/null 49mount /dev/md$mdstart $mntpoint 50cd $mntpoint 51set +e 52 53echo "Expect lots of warnings." 54start=`date +%s` 55while [ $((`date +%s` - start)) -lt 180 ]; do 56 cp /bin/ps ./elf 57 for j in `jot 10`; do 58 /tmp/flip -n 1 ./elf 59 cp elf $save; fsync $save; sync 60 timeout -s SIGKILL 2 ./elf aux > /dev/null 2>&1 || break 61 rm -f *.core 62 done 63done 64cd $odir 65 66for i in `jot 6`; do 67 mount | grep -q "on $mntpoint " || break 68 umount $mntpoint && break || sleep 10 69 [ $i -eq 6 ] && 70 { echo FATAL; fstat -mf $mntpoint; exit 1; } 71done 72mdconfig -d -u $mdstart 73rm /tmp/flip $save 74exit 0 75