xref: /freebsd/tools/test/stress2/misc/core4.sh (revision 9768746b)
1#!/bin/sh
2
3#
4# Copyright (c) 2014 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 -f
30
31# "panic: vn_finished_write: neg cnt" seen.
32# http://people.freebsd.org/~pho/core4.sh
33# Fixed in r274501
34
35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
36. ../default.cfg
37
38here=`pwd`
39cd /tmp
40sed '1,/^EOF/d' < $here/$0 > core4.c
41mycc -o core4 -Wall -Wextra -O0 -g core4.c || exit 1
42rm -f core4.c
43
44mount | grep -q "$mntpoint" && umount $mntpoint
45mdconfig -l | grep -q $mdstart &&  mdconfig -d -u $mdstart
46
47mdconfig -a -t swap -s 2g -u $mdstart
48
49newfs $newfs_flags md$mdstart > /dev/null
50for i in `jot 20`; do
51	mount /dev/md$mdstart $mntpoint
52	chmod 777 $mntpoint
53	su $testuser -c "(cd $mntpoint; /tmp/core4)" &
54	su $testuser -c "(cd $mntpoint; /tmp/core4)" &
55	su $testuser -c "(cd $mntpoint; /tmp/core4)" &
56	sleep .5
57	sleep .`jot -r 1 1 9`
58	umount -f $mntpoint
59	wait
60done 2>/dev/null
61
62while mount | grep -q "on $mntpoint "; do
63	umount $mntpoint || sleep 1
64done
65mdconfig -d -u $mdstart
66rm -f /tmp/core4
67exit 0
68EOF
69#include <sys/mman.h>
70#include <sys/param.h>
71
72#include <err.h>
73#include <signal.h>
74#include <unistd.h>
75
76#define SIZ (1024L * 1024 * 1024)
77
78int
79main(void)
80{
81	(void)mmap(NULL, SIZ, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
82	usleep(1000);
83	raise(SIGSEGV);
84
85	return (0);
86}
87