svn commit: r266791 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Wed May 28 07:35:48 2014
New Revision: 266791
URL: http://svnweb.freebsd.org/changeset/base/266791

Log:
  Added a regression test scenario.
  
  Sponsored by:	EMC / Isilon storage division

Added:
  user/pho/stress2/misc/mmap12.sh   (contents, props changed)

Added: user/pho/stress2/misc/mmap12.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/mmap12.sh	Wed May 28 07:35:48 2014	(r266791)
@@ -0,0 +1,77 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+# "panic: vm_map_protect: inaccessible wired map entry" seen:
+# http://people.freebsd.org/~pho/stress/log/mmap11.txt
+# Fixed in r266780.
+
+# Test scenario by: Mark Johnston markj@
+
+dir=/tmp
+odir=`pwd`
+cd $dir
+sed '1,/^EOF/d' < $odir/$0 > $dir/mmap12.c
+cc -o mmap12  -O2 -Wall -Wextra mmap12.c || exit 1
+rm -f mmap12.c
+cd $odir
+
+/tmp/mmap12
+
+rm -f /tmp/mmap12
+exit
+
+EOF
+#include <sys/mman.h>
+
+#include <err.h>
+#include <string.h>
+#include <unistd.h>
+
+int
+main(int argc, char **argv)
+{
+	void *addr;
+	size_t sz = 1;
+
+	addr = mmap(NULL, sz, PROT_READ, MAP_ANON, -1, 0);
+	if (addr == NULL)
+		err(1, "mmap");
+
+	if (mlock(addr, sz) != 0)
+		err(1, "mlock");
+	if (mprotect(addr, sz, PROT_NONE) != 0)
+		err(1, "mprotect 1");
+	if (mprotect(addr, sz, PROT_WRITE) != 0)
+		err(1, "mprotect 2");
+	if (munmap(addr, sz) != 0)
+		err(1, "munmap");
+
+	return (0);
+}