Date: Sun, 10 May 2015 12:41:35 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r282724 - user/pho/stress2/misc Message-ID: <201505101241.t4ACfZEa009538@svn.freebsd.org>
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Author: pho Date: Sun May 10 12:41:34 2015 New Revision: 282724 URL: https://svnweb.freebsd.org/changeset/base/282724 Log: Added a regression test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/execve.sh (contents, props changed) Added: user/pho/stress2/misc/execve.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/execve.sh Sun May 10 12:41:34 2015 (r282724) @@ -0,0 +1,132 @@ +#!/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. +# +# $FreeBSD$ +# + +# Test of execve(2) from a threaded program. +# "load: 5.40 cmd: bash 24517 [vmmaps] 2.45r 0.00u 0.00s 0% 3448k" seen. +# Fixed by r282708. + +. ../default.cfg + +here=`pwd` +cd /tmp +sed '1,/^EOF/d' < $here/$0 > execve.c +mycc -o execve -Wall -Wextra -O2 execve.c -lpthread || exit 1 +rm -f execve.c + +daemon sh -c "(cd $here/../testcases/swap; ./swap -t 20m -i 20 -l 100)" > \ + /dev/null 2>&1 +sleep `jot -r 1 1 9` +for i in `jot 2`; do + /tmp/execve +done +while pgrep -q swap; do + pkill -9 swap +done + +rm -f /tmp/execve /tmp/execve.core +exit 0 +EOF +#include <sys/types.h> +#include <sys/resource.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <pthread.h> +#include <sched.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#define LOOPS 50 +#define PARALLEL 50 + +volatile int go; + +void * +texecve(void *arg __unused) +{ + char *cmdline[] = { "/usr/bin/true", NULL }; + + while (go == 0) + usleep(100); + if (execve(cmdline[0], cmdline, NULL) == -1) + err(1, "execve"); + + return (NULL); +} + +void +test(void) +{ + pthread_t tid[5]; + int i, rc; + + go = 0; + + for (i = 0; i < 5; i++) { + if ((rc = pthread_create(&tid[i], NULL, texecve, NULL)) != 0) + errc(1, rc, "texecve()"); + } + + usleep(arc4random() % 2000); + go = 1; + + for (i = 0; i < 5; i++) + if ((rc = pthread_join(tid[i], NULL)) != 0) + errc(1, rc, "pthread_join(%d)", i); + _exit(0); +} + +int +main(void) +{ + struct rlimit rl; + int i, j; + + rl.rlim_max = rl.rlim_cur = 0; + if (setrlimit(RLIMIT_CORE, &rl) == -1) + warn("setrlimit"); + + for (i = 0; i < LOOPS; i++) { + for (j = 0; j < PARALLEL; j++) { + if (fork() == 0) + test(); + } + + for (j = 0; j < PARALLEL; j++) + wait(NULL); + } + + return (0); +}
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