Index: user/pho/stress2/misc/maxvnodes.sh
===================================================================
--- user/pho/stress2/misc/maxvnodes.sh	(revision 319102)
+++ user/pho/stress2/misc/maxvnodes.sh	(revision 319103)
@@ -1,66 +1,69 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2015 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.
 #
 # $FreeBSD$
 #
 
 [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
 
 # Test dynamic kern.maxvnodes implementation.
 
 . ../default.cfg
 
+kldstat | grep -q tmpfs.ko || notloaded=1
 mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
 mount -o size=2g -t tmpfs tmpfs $mntpoint || exit 1
 chmod 777 $mntpoint
 
 oldmx=`sysctl -n kern.maxvnodes`
 trap "sysctl kern.maxvnodes=$oldmx > /dev/null" EXIT SIGINT
 
 export runRUNTIME=10m
 export RUNDIR=$mntpoint/stressX
 export TESTPROGS="
 testcases/creat/creat
 testcases/mkdir/mkdir
 testcases/swap/swap
 "
 export creatINCARNATIONS=50
 export creatLOAD=100
 
 su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS' > /dev/null 2>&1 &
 
 min=1000
 max=$((oldmx * 4))
 while kill -0 $! 2>/dev/null; do
 	sysctl kern.maxvnodes=`jot -r 1 $min $max` > /dev/null
 	sleep `jot -r 1 1 3`
 done
 wait
 
 while mount | grep $mntpoint | grep -q tmpfs; do
 	umount $mntpoint || sleep 1
 done
+[ $notloaded ] && kldunload tmpfs.ko
+exit 0