Date: Sat, 23 May 2015 20:29:06 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r283325 - user/pho/stress2/misc Message-ID: <201505232029.t4NKT6TG072059@svn.freebsd.org>
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Author: pho Date: Sat May 23 20:29:06 2015 New Revision: 283325 URL: https://svnweb.freebsd.org/changeset/base/283325 Log: Added a regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/pthread9.sh (contents, props changed) Added: user/pho/stress2/misc/pthread9.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/pthread9.sh Sat May 23 20:29:06 2015 (r283325) @@ -0,0 +1,185 @@ +#!/bin/sh + +# +# Copyright (c) 2015 EMC Corp. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +# Thread suspend deadlock seen: +# https://people.freebsd.org/~pho/stress/log/pthread9.txt + +# Test scenario by Conrad Meyer. +# Fixed by r283320. + +[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > pthread9.c +mycc -o pthread9 -Wall -Wextra -O2 pthread9.c -lpthread || exit 1 +rm -f pthread9.c + +status=0 +if ping -c 2 `echo $nfs_export | sed 's/:.*//'` > /dev/null 2>&1; then + mount -t nfs -o nfsv3,tcp,nolockd,retrycnt=3,intr $nfs_export \ + $mntpoint || exit 1 + sleep .5 + (cd $mntpoint; /tmp/pthread9) & + sleep 200 + if pgrep -q pthread9; then + echo FAIL + procstat -k `pgrep pthread9 | grep -v $!` + status=1 + fi + umount -f $mntpoint + wait +fi + +rm -f /tmp/pthread9 +exit $status +EOF +#include <sys/types.h> + +#include <machine/atomic.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> +#ifdef __FreeBSD__ +#include <pthread_np.h> +#define __NP__ +#endif +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <sys/wait.h> +#include <unistd.h> + +#define LOOPS 50 +#define RUNTIME 180 + +volatile u_int go; +int fd; +char file[] = "pthread9.file"; + +static void * +t1(void *data __unused) +{ + int i; + +#ifdef __NP__ + pthread_set_name_np(pthread_self(), __func__); +#endif + while (go == 0) + pthread_yield(); + + atomic_add_int(&go, 1); + for (i = 0; i < 100; i++) + if (ftruncate(fd, 0) == -1) + err(1, "truncate"); + + return (NULL); +} + +static void * +t2(void *data __unused) +{ + int i; + +#ifdef __NP__ + pthread_set_name_np(pthread_self(), __func__); +#endif + while (go == 0) + pthread_yield(); + + atomic_add_int(&go, 1); + for (i = 0; i < 100; i++) + if (ftruncate(fd, 0) == -1) + err(1, "truncate"); + + return (NULL); +} + +static void * +t3(void *data __unused) +{ + +#ifdef __NP__ + pthread_set_name_np(pthread_self(), __func__); +#endif + while (go != 3) + pthread_yield(); + abort(); + + return (NULL); +} + +int +test(void) +{ + pthread_t tid[3]; + int i, rc; + + go = 0; + if ((rc = pthread_create(&tid[0], NULL, t1, NULL)) == -1) + errc(1, rc, "pthread_create"); + if ((rc = pthread_create(&tid[1], NULL, t2, NULL)) == -1) + errc(1, rc, "pthread_create"); + if ((rc = pthread_create(&tid[2], NULL, t3, NULL)) == -1) + errc(1, rc, "pthread_create"); + usleep(200); + atomic_add_int(&go, 1); + + for (i = 0; i < 3; i++) { + if ((rc = pthread_join(tid[i], NULL)) == -1) + errc(1, rc, "pthread_join"); + } + + _exit(0); +} + +int +main(void) +{ + time_t start; + + if ((fd = open(file, O_RDWR | O_CREAT, 0644)) == -1) + err(1, "open(%s)", file); + + start = time(NULL); + while (time(NULL) - start < RUNTIME) { + if (fork() == 0) + test(); + wait(NULL); + } + close(fd); + unlink(file); + + return (0); +}
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