svn commit: r245299 - user/pho/stress2/misc

[Peter Holm]

Author: pho
Date: Fri Jan 11 12:39:34 2013
New Revision: 245299
URL: http://svnweb.freebsd.org/changeset/base/245299

Log:
  Regression test added.

Added:
  user/pho/stress2/misc/nullfs10.sh   (contents, props changed)

Added: user/pho/stress2/misc/nullfs10.sh
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ user/pho/stress2/misc/nullfs10.sh	Fri Jan 11 12:39:34 2013	(r245299)
@@ -0,0 +1,72 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2012 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:
+
+# There is an issue, namely, when the lower file is already
+# opened r/w, but its nullfs alias is executed. This situation obviously
+# shall result in ETXTBUSY, but it currently does not.
+
+# Test scenario by kib@
+
+. ../default.cfg
+
+mnt2=/mnt2
+mount | grep -q $mnt2 && umount $mnt2
+
+[ -d $mnt2 ] || mkdir $mnt2
+mount | grep $mnt2 | grep -q /dev/md && umount -f $mnt2
+mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 1g -u $mdstart
+bsdlabel -w md$mdstart auto
+newfs -U md${mdstart}$part > /dev/null
+mount /dev/md${mdstart}$part $mntpoint
+chmod 777 $mntpoint
+
+mount -t nullfs $mntpoint $mnt2
+
+cp /bin/ls $mntpoint
+chmod +w $mntpoint/ls
+sleep 2 >> $mntpoint/ls &
+sleep .5 
+# This line should cause a "/mnt2/ls: Text file busy"
+$mnt2/ls -l /bin/ls $mntpoint $mnt2 && echo FAIL || echo OK
+kill $!
+
+while mount | grep -q "$mnt2 "; do
+	umount $mnt2 || sleep 1
+done
+
+while mount | grep -q "$mntpoint "; do
+	umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart