131 lines
2.9 KiB
Bash
Executable File
131 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2014 EMC Corp.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Core dump wedge
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# Trimmed down version of mmap15.sh
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# http://people.freebsd.org/~pho/stress/log/mmap15-2.txt
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# Fixed in r272534 + r272535.
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# Page fault seen: http://people.freebsd.org/~pho/stress/log/kostik733.txt
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# Fixed in r274474.
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > mmap22.c
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mycc -o mmap22 -Wall -Wextra -O2 -g mmap22.c -lpthread || exit 1
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rm -f mmap22.c
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su $testuser -c /tmp/mmap22 &
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sleep 300
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while pgrep -q mmap22; do
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pkill -9 mmap22
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sleep 2
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done
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wait
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rm -f /tmp/mmap22 /tmp/mmap22.core
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exit 0
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EOF
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#include <sys/mman.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define MMAPS 25
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#define PARALLEL 4
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#define SIZ (64 * 1024 * 1024)
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void *
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tmmap(void *arg __unused)
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{
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size_t len;
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void *p;
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int i;
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len = SIZ;
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for (i = 0; i < MMAPS; i++)
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p = mmap(NULL, len, PROT_READ | PROT_WRITE, MAP_ANON, -1, 0);
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fsync(fileno(stdout));
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return (NULL);
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}
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void
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test(void)
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{
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pthread_t tid;
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int i, rc;
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if ((rc = pthread_create(&tid, NULL, tmmap, NULL)) != 0)
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errc(1, rc, "test()");
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for (i = 0; i < 100; i++) {
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if (fork() == 0) {
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usleep(10000);
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_exit(0);
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}
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wait(NULL);
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}
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raise(SIGSEGV);
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if ((rc = pthread_join(tid, NULL)) != 0)
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errc(1, rc, "pthread_join(%d)", i);
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_exit(0);
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}
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int
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main(void)
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{
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int i;
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for (i = 0; i < PARALLEL; i++) {
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if (fork() == 0)
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test();
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}
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for (i = 0; i < PARALLEL; i++)
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wait(NULL);
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return (0);
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}
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