1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 30# Test scenario input by: "Patrick Sullivan" sulli00777@gmail.com 31 32# Bug 253593 33# "panic: ldvp 0xffff... fl 0x1 dvp 0xffff... fl 0 flags 0x34048144" seen. 34# https://people.freebsd.org/~pho/stress/log/log0087.txt 35 36[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 37 38. ../default.cfg 39 40mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint 41mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart 42 43odir=`pwd` 44cd /tmp 45sed '1,/^EOF/d' < $odir/$0 > chroot.c 46rm -f /tmp/chroot 47mycc -o chroot -Wall -Wextra -O0 -g chroot.c -static || exit 1 48rm -f chroot.c 49 50mdconfig -a -t swap -s 10m -u $mdstart || exit 1 51newfs -n $newfs_flags md$mdstart > /dev/null 52mount /dev/md$mdstart $mntpoint 53mkdir -p $mntpoint/root/dir $mntpoint/jail $mntpoint/dev 54mount -t nullfs $mntpoint/root $mntpoint/jail 55mount -t devfs null $mntpoint/dev 56mv /tmp/chroot $mntpoint/root 57 58chroot $mntpoint/jail ./chroot & 59sleep .5 60mv $mntpoint/root/dir $mntpoint 61wait 62 63umount $mntpoint/dev 64umount $mntpoint/jail 65while mount | grep "on $mntpoint " | grep -q /dev/md; do 66 umount $mntpoint || sleep 1 67done 68mdconfig -d -u $mdstart 69exit 70EOF 71#include <sys/types.h> 72#include <err.h> 73#include <stdio.h> 74#include <unistd.h> 75 76int 77main(void) 78{ 79 if (chdir("dir") == -1) 80 err(1, "chdir() #1"); 81 sleep(2); 82 fprintf(stderr, "cwd is %s\n", getwd(NULL)); 83} 84