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 45newfs $newfs_flags md$mdstart > /dev/null 46mount /dev/md$mdstart $mntpoint 47 48touch /tmp/continue 49for i in `jot 64`; do 50 mkdir -p $mntpoint/d$i 51 (cd $mntpoint; /tmp/core2) & 52done 53rm -f /tmp/continue 54 55for i in `jot 60`; do 56 umount $mntpoint 2>/dev/null || sleep 1 57 mount | grep -q "on $mntpoint " || break 58done 59wait 60mount | grep -q "on $mntpoint " && 61 umount -f $mntpoint 62mdconfig -d -u $mdstart 63rm -f /tmp/core2 64exit 65EOF 66#include <sys/mman.h> 67 68#include <err.h> 69#include <signal.h> 70#include <stdio.h> 71#include <stdlib.h> 72#include <string.h> 73#include <time.h> 74#include <unistd.h> 75 76#define SIZ 1L * 128 * 1024 * 1024 77 78void *p; 79 80int 81main(void) 82{ 83 size_t len; 84 85 len = SIZ; 86 p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0); 87 88 while (access("/tmp/continue", R_OK) == 0) 89 usleep(1); 90 91 raise(SIGSEGV); 92 93 return (0); 94} 95