186 lines
4.0 KiB
Bash
Executable File
186 lines
4.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2015 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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# Thread suspend deadlock seen:
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# https://people.freebsd.org/~pho/stress/log/pthread9.txt
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# Test scenario by Conrad Meyer.
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# Fixed by r283320.
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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 > pthread9.c
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mycc -o pthread9 -Wall -Wextra -O2 pthread9.c -lpthread || exit 1
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rm -f pthread9.c
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status=0
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if ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1; then
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mount -t nfs -o nfsv3,tcp,nolockd,retrycnt=3,intr $nfs_export \
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$mntpoint || exit 1
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sleep .5
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echo "Expect core dumps"
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(cd $mntpoint; /tmp/pthread9) &
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sleep 200
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if pgrep -q pthread9; then
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echo FAIL
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procstat -k `pgrep pthread9 | grep -v $!`
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status=1
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fi
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rm -f $mntpoint/pthread9.core
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umount -f $mntpoint
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wait
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fi
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rm -f /tmp/pthread9 /tmp/pthread9.core
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exit $status
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EOF
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#include <sys/types.h>
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#include <machine/atomic.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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#ifdef __FreeBSD__
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#include <pthread_np.h>
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#define __NP__
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#define LOOPS 50
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#define RUNTIME 180
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volatile u_int go;
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int fd;
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char file[] = "pthread9.file";
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static void *
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t1(void *data __unused)
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{
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int i;
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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while (go == 0)
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pthread_yield();
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atomic_add_int(&go, 1);
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for (i = 0; i < 100; i++)
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if (ftruncate(fd, 0) == -1)
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err(1, "truncate");
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return (NULL);
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}
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static void *
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t2(void *data __unused)
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{
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int i;
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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while (go == 0)
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pthread_yield();
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atomic_add_int(&go, 1);
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for (i = 0; i < 100; i++)
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if (ftruncate(fd, 0) == -1)
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err(1, "truncate");
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return (NULL);
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}
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static void *
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t3(void *data __unused)
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{
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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while (go != 3)
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pthread_yield();
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abort();
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return (NULL);
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}
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int
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test(void)
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{
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pthread_t tid[3];
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int i, rc;
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go = 0;
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if ((rc = pthread_create(&tid[0], NULL, t1, NULL)) != 0)
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errc(1, rc, "pthread_create");
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if ((rc = pthread_create(&tid[1], NULL, t2, NULL)) != 0)
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errc(1, rc, "pthread_create");
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if ((rc = pthread_create(&tid[2], NULL, t3, NULL)) != 0)
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errc(1, rc, "pthread_create");
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usleep(200);
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atomic_add_int(&go, 1);
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for (i = 0; i < 3; i++) {
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if ((rc = pthread_join(tid[i], NULL)) != 0)
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errc(1, rc, "pthread_join");
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}
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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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time_t start;
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if ((fd = open(file, O_RDWR | O_CREAT, 0644)) == -1)
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err(1, "open(%s)", file);
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start = time(NULL);
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while (time(NULL) - start < RUNTIME) {
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if (fork() == 0)
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test();
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wait(NULL);
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}
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close(fd);
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unlink(file);
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return (0);
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}
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