svn commit: r245298 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Fri Jan 11 12:37:01 2013
New Revision: 245298
URL: http://svnweb.freebsd.org/changeset/base/245298

Log:
  Regression test: exec returning EIO problem scenario for tmpfs.

Added:
  user/pho/stress2/misc/tmpfs9.sh   (contents, props changed)

Added: user/pho/stress2/misc/tmpfs9.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/tmpfs9.sh	Fri Jan 11 12:37:01 2013	(r245298)
@@ -0,0 +1,113 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2013 Peter Holm <pho at FreeBSD.org>
+# 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.
+#
+# $FreeBSD$
+#
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+# Regression test: exec returning EIO problem scenario for tmpfs
+
+. ../default.cfg
+
+here=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $here/$0 > tmpfs9.c
+cc -o tmpfs9 -Wall -Wextra -O2 tmpfs9.c
+rm -f tmpfs9.c
+cd $here
+
+mount | grep $mntpoint | grep -q tmpfs && umount -f $mntpoint
+mount -t tmpfs tmpfs $mntpoint
+chmod 777 $mntpoint
+
+cp /usr/bin/true $mntpoint
+su ${testuser} -c "/tmp/tmpfs9 $mntpoint" &
+
+while kill -0 $! 2>/dev/null; do
+	../testcases/swap/swap -t 2m -i 40 -h
+done
+wait
+
+while mount | grep $mntpoint | grep -q tmpfs; do
+	umount $mntpoint || sleep 1
+done
+rm -d /tmp/tmpfs9
+exit
+EOF
+#include <sys/types.h>
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define N 5000
+#define PARALLEL 10
+const char path[] = "./true";
+
+void test(void)
+{
+	pid_t p;
+	int i;
+
+	for (i = 0; i < N; i++) {
+		if ((p = fork()) == 0) 
+			if (execl(path, path, (char *)0) == -1)
+				err(1, "exec(%s)", path);
+		if (p > 0)
+			wait(NULL);
+	}
+	_exit(0);
+}
+
+
+int
+main(int argc, char **argv)
+{
+	int i, status;
+
+	if (argc != 2)
+		errx(1, "Usage: %s <path>", argv[0]);
+	if (chdir(argv[1]) == -1)
+		err(1, "chdir(%s)", argv[1]);
+
+	for (i = 0; i < PARALLEL; i++) {
+		if (fork() == 0)
+			test();
+	}
+
+	for (i = 0; i < PARALLEL; i++) {
+		wait(&status);
+		if (status != 0)
+			return (1);
+	}
+
+	return (0);
+}