Added MEMGUARD scenario for SU problem.

misc/memguard.sh

@@ -0,0 +1,68 @@
+#!/bin/sh
+
+#
+# Copyright (c) 2011 Peter Holm <pho@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
+
+
+# MEMGUARD(9) test scenario: Page fault seen in softdep_setup_inomapdep().
+
+. ../default.cfg
+
+sysctl vm | grep -q memguard || { echo "MEMGUARD(9) not enabled"; exit 1; }
+
+mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
+mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart
+
+mdconfig -a -t swap -s 20m -u $mdstart || exit 1
+bsdlabel -w md$mdstart auto
+
+newfs -U md${mdstart}$part > /dev/null
+
+mount /dev/md${mdstart}$part $mntpoint
+chmod 777 $mntpoint
+
+export runRUNTIME=5m
+export RUNDIR=$mntpoint/stressX
+set `df -ik $mntpoint | tail -1 | awk '{print $4,$7}'`
+export KBLOCKS=$(($1 * 2))
+export  INODES=$(($2 * 2))
+
+sysctl vm.memguard.options=3 > /dev/null
+sysctl vm.memguard.desc=inodedep
+
+su $testuser -c 'cd ..; ./run.sh disk.cfg' > /dev/null
+
+sysctl vm.memguard.desc="" > /dev/null
+sysctl vm.memguard.options=1 > /dev/null
+
+while mount | grep $mntpoint | grep -q /dev/md; do
+	umount $mntpoint || sleep 1
+done
+mdconfig -d -u $mdstart