1#!/bin/sh 2 3# 4# Copyright (c) 2013 EMC Corp. 5# All rights reserved. 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 multiple (parallel) core dumps and umount 30 31[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 32. ../default.cfg 33 34odir=`pwd` 35 36cd /tmp 37sed '1,/^EOF/d' < $odir/$0 > core2.c 38mycc -o core2 -Wall -Wextra -O0 core2.c || exit 1 39rm -f core2.c 40cd $RUNDIR 41 42mount | grep "on $mntpoint " | grep -q md$mdstart && umount $mntpoint 43[ -c /dev/mn$mdstart ] && mdconfig -d -u $mdstart 44mdconfig -a -t swap -s 1g -u $mdstart 45bsdlabel -w md$mdstart auto 46newfs $newfs_flags md${mdstart}$part > /dev/null 47mount /dev/md${mdstart}$part $mntpoint 48 49touch /tmp/continue 50for i in `jot 64`; do 51 mkdir -p $mntpoint/d$i 52 (cd $mntpoint; /tmp/core2) & 53done 54rm -f /tmp/continue 55 56for i in `jot 60`; do 57 umount $mntpoint 2>/dev/null || sleep 1 58 mount | grep -q "on $mntpoint " || break 59done 60wait 61mount | grep -q "on $mntpoint " && 62 umount -f $mntpoint 63mdconfig -d -u $mdstart 64rm -f /tmp/core2 65exit 66EOF 67#include <sys/mman.h> 68 69#include <err.h> 70#include <signal.h> 71#include <stdio.h> 72#include <stdlib.h> 73#include <string.h> 74#include <time.h> 75#include <unistd.h> 76 77#define SIZ 1L * 128 * 1024 * 1024 78 79void *p; 80 81int 82main(void) 83{ 84 size_t len; 85 86 len = SIZ; 87 p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); 88 89 while (access("/tmp/continue", R_OK) == 0) 90 usleep(1); 91 92 raise(SIGSEGV); 93 94 return (0); 95} 96