svn commit: r204191 - projects/stress2/misc

[Peter Holm]

Author: pho
Date: Mon Feb 22 07:19:25 2010
New Revision: 204191
URL: http://svn.freebsd.org/changeset/base/204191

Log:
  Test scenario for "panic: swap_reserved < decr". Fixed in r195329.

Added:
  projects/stress2/misc/mlockall.sh   (contents, props changed)

Added: projects/stress2/misc/mlockall.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ projects/stress2/misc/mlockall.sh	Mon Feb 22 07:19:25 2010	(r204191)
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2009 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.
+#
+# $FreeBSD$
+#
+
+# "panic: swap_reserved < decr" seen. Fixed in r195329
+
+. ../default.cfg
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+odir=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $odir/$0 > mlockall.c
+cc -o mlockall -Wall mlockall.c
+rm -f mlockall.c
+
+for i in `jot 10`; do
+	/tmp/mlockall &
+	sleep 1
+	ps | grep /tmp/mlockall | grep -v grep | awk '{print $1}' | while read pid; do
+		kill -2 $pid
+		kill -9 $pid
+	done
+done
+
+rm -f /tmp/mlockall
+exit
+EOF
+#include <err.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+void
+child(void)
+{
+	if (mlockall(MCL_CURRENT | MCL_FUTURE) == -1)
+		err(1, "mlockall(MCL_CURRENT | MCL_FUTURE)");
+	fork();
+	sleep(60);
+}
+
+int
+main(int argc, char **argv)
+{
+	int status;
+
+	if (fork() == 0)
+		child();
+	wait(&status);
+
+	return (0);
+}