svn commit: r266613 - user/pho/stress2/misc
Peter Holm
pho at FreeBSD.org
Sat May 24 11:42:51 UTC 2014
Author: pho
Date: Sat May 24 11:42:50 2014
New Revision: 266613
URL: http://svnweb.freebsd.org/changeset/base/266613
Log:
Added a regression test.
Sponsored by: EMC / Isilon storage division
Added:
user/pho/stress2/misc/fork.sh (contents, props changed)
Added: user/pho/stress2/misc/fork.sh
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ user/pho/stress2/misc/fork.sh Sat May 24 11:42:50 2014 (r266613)
@@ -0,0 +1,122 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2014 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.
+#
+# $FreeBSD$
+#
+
+# The test program calls fork(2) from a multi-threaded process.
+# Test program stuck in uwrlck seen.
+# Fixed in r266609.
+
+# Note that program erroneously calls exit(3) and not _exit(2).
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > fork.c
+cc -o fork -Wall -Wextra -O2 -g fork.c -lpthread || exit 1
+
+for i in `jot 100`; do
+ /tmp/fork &
+done
+sleep 10
+if ps -l | grep -v grep | egrep "fork\$"; then
+ echo FAIL
+ exit 1
+fi
+
+rm -f /tmp/fork /tmp/fork.c
+exit 0
+EOF
+
+/*
+ * Written by Love Hörnquist Åstrand <lha at NetBSD.org>, March 2003.
+ * Public domain.
+ */
+
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <err.h>
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static pid_t parent;
+static int thread_survived = 0;
+
+static void *
+print_pid(void *arg __unused)
+{
+ sleep(3);
+
+ thread_survived = 1;
+ if (parent != getpid()) {
+ exit(1);
+ }
+ return NULL;
+}
+
+int
+main(void)
+{
+ int r;
+ pthread_t p;
+ pid_t fork_pid;
+
+ parent = getpid();
+
+ r = pthread_create(&p, NULL, print_pid, NULL);
+ if (r != 0)
+ errx(1, "r = %d", r);
+
+ fork_pid = fork();
+ if (fork_pid == -1)
+ err(1, "fork");
+
+ if (fork_pid) {
+ int status;
+
+ r = pthread_join(p, NULL);
+ if (r != 0)
+ errx(1, "r = %d", r);
+ if (thread_survived == 0)
+ errx(1, "thread did not survive in parent");
+
+ waitpid(fork_pid, &status, 0);
+ if (WIFEXITED(status) != 1)
+ printf("WIFEXITED(status) = %d\n", WIFEXITED(status));
+ if (WEXITSTATUS(status) != 0)
+ printf("WEXITSTATUS(status) = %d\n", WEXITSTATUS(status));
+ } else {
+ sleep(5);
+ exit(thread_survived ? 1 : 0);
+ }
+}
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