Index: user/pho/stress2/misc/backingstore.sh
===================================================================
--- user/pho/stress2/misc/backingstore.sh	(revision 283556)
+++ user/pho/stress2/misc/backingstore.sh	(revision 283557)
@@ -1,81 +1,83 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2008 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.
 #
 # $FreeBSD$
 #
 
 # Test sparse backing store
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 D=$diskimage
 export here=`pwd`
 
 m=$mdstart
 
 mount | grep "${mntpoint}" | grep -q md$m && umount ${mntpoint}$m
 mdconfig -l | grep -q md$m &&  mdconfig -d -u $m
 
 dede $D$m 100m 1 || exit 1
 
 mdconfig -a -t vnode -f $D$m -u $m
 
 bsdlabel -w md$m auto
 newfs md${m}${part} > /dev/null 2>&1
+[ -d ${mntpoint}$m ] || mkdir -p ${mntpoint}$m
 mount $opt /dev/md${m}${part} ${mntpoint}$m
 
 n=$m
 m=$((m + 1))
 
 mount | grep "${mntpoint}" | grep -q md$m && umount ${mntpoint}$m
 mdconfig -l | grep -q md$m &&  mdconfig -d -u $m
 
 truncate -s 500M ${mntpoint}$n/diskimage
 mdconfig -a -t vnode -f ${mntpoint}$n/diskimage -u $m
 
 bsdlabel -w md$m auto
 newfs md${m}${part} > /dev/null 2>&1
+[ -d ${mntpoint}$m ] || mkdir -p ${mntpoint}$m
 mount $opt /dev/md${m}${part} ${mntpoint}$m
 
 export RUNDIR=${mntpoint}$m/stressX
 ../testcases/rw/rw -t 5m -i 200 -h -n
 
 while mount | grep -q ${mntpoint}$m; do
 	flag=$([ $((`date '+%s'` % 2)) -eq 0 ] && echo "-f" || echo "")
 	umount $flag ${mntpoint}$m > /dev/null 2>&1
 done
 mdconfig -l | grep -q md$m &&  mdconfig -d -u $m
 
 m=$((m - 1))
 while mount | grep -q ${mntpoint}$m; do
 	umount $([ $((`date '+%s'` % 2)) -eq 0 ] && \
 		echo "-f" || echo "") ${mntpoint}$m > /dev/null 2>&1
 done
 mdconfig -l | grep -q md$m &&  mdconfig -d -u $m
 rm -f $D
Index: user/pho/stress2/misc/backingstore2.sh
===================================================================
--- user/pho/stress2/misc/backingstore2.sh	(revision 283556)
+++ user/pho/stress2/misc/backingstore2.sh	(revision 283557)
@@ -1,73 +1,75 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2009 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.
 #
 # $FreeBSD$
 #
 
 # Test unmount of a device that is already gone
 
 # Leaves /mnt6 unmountable and leads to a "panic: 1 vncache entries remaining"
 # during shut down.
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 D=$diskimage
 export here=`pwd`
 
 m1=$mdstart
 m2=$((m1 + 1))
 mount | grep "${mntpoint}" | grep -q md$m2 && umount ${mntpoint}$m2
 mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
 mount | grep "${mntpoint}" | grep -q md$m1 && umount ${mntpoint}$m1
 mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
+[ -d ${mntpoint}$m1 ] || mkdir -p ${mntpoint}$m1
+[ -d ${mntpoint}$m2 ] || mkdir -p ${mntpoint}$m2
 
 dede $D$m1 100m 1 || exit 1
 
 mdconfig -a -t vnode -f $D$m1 -u $m1
 
 bsdlabel -w md$m1 auto
 newfs md${m1}${part} > /dev/null 2>&1
 mount /dev/md${m1}${part} ${mntpoint}$m1
 
 
 truncate -s 500M ${mntpoint}$m1/diskimage
 mdconfig -a -t vnode -f ${mntpoint}$m1/diskimage -u $m2
 
 bsdlabel -w md$m2 auto
 newfs md${m2}${part} > /dev/null 2>&1
 mount /dev/md${m2}${part} ${mntpoint}$m2
 
 # Reversed umount sequence:
 umount -f /dev/md${m1}${part}
 umount -f /dev/md${m2}${part}
 
 mount | grep "${mntpoint}" | grep -q md$m2 && umount ${mntpoint}$m2
 mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
 mount | grep "${mntpoint}" | grep -q md$m1 && umount ${mntpoint}$m1
 mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
Index: user/pho/stress2/misc/backingstore3.sh
===================================================================
--- user/pho/stress2/misc/backingstore3.sh	(revision 283556)
+++ user/pho/stress2/misc/backingstore3.sh	(revision 283557)
@@ -1,74 +1,76 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2009 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.
 #
 # $FreeBSD$
 #
 
 # Test unmount of a device that is already gone
 
 # Caused "panic: bundirty: buffer 0xdafaf2c4 still on queue 1"
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 . ../default.cfg
 
 D=$diskimage
 export here=`pwd`
 
 m1=$mdstart
 m2=$((m1 + 1))
 mount | grep "${mntpoint}" | grep -q md$m2 && umount ${mntpoint}$m2
 mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
 mount | grep "${mntpoint}" | grep -q md$m1 && umount ${mntpoint}$m1
 mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1
+[ -d ${mntpoint}$m1 ] || mkdir -p ${mntpoint}$m1
+[ -d ${mntpoint}$m2 ] || mkdir -p ${mntpoint}$m2
 
 dede $D$m1 25m 1 || exit 1
 
 mdconfig -a -t vnode -f $D$m1 -u $m1
 
 bsdlabel -w md$m1 auto
 newfs md${m1}${part} > /dev/null 2>&1
 mount /dev/md${m1}${part} ${mntpoint}$m1
 
 
 truncate -s 500M ${mntpoint}$m1/diskimage
 mdconfig -a -t vnode -f ${mntpoint}$m1/diskimage -u $m2
 
 bsdlabel -w md$m2 auto
 newfs md${m2}${part} > /dev/null 2>&1
 mount /dev/md${m2}${part} ${mntpoint}$m2
 
 dd if=/dev/zero of=${mntpoint}$m2/file bs=1m > /dev/null 2>&1
 
 # Reversed umount sequence:
 umount -f /dev/md${m1}${part}
 umount -f /dev/md${m2}${part}
 
 mount | grep "${mntpoint}" | grep -q md$m2 && umount ${mntpoint}$m2
 mdconfig -l | grep -q md$m2 &&  mdconfig -d -u $m2
 mount | grep "${mntpoint}" | grep -q md$m1 && umount ${mntpoint}$m1
 mdconfig -l | grep -q md$m1 &&  mdconfig -d -u $m1