Index: user/pho/stress2/misc/gnop.sh
===================================================================
--- user/pho/stress2/misc/gnop.sh	(revision 307847)
+++ user/pho/stress2/misc/gnop.sh	(revision 307848)
@@ -1,69 +1,71 @@
 #!/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 with different sector size using gnop(8).
 # Out of VM seen:
 # https://people.freebsd.org/~pho/stress/log/gnop.txt
 
 test() {
 	. ../default.cfg
 
 	mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
 	[ -c /dev/md$mdstart ] &&  mdconfig -d -u $mdstart
 
 	mdconfig -a -t swap -s 2g -u $mdstart || exit 1
 	gnop create -S $1 /dev/md$mdstart
 	newfs $newfs_flags /dev/md${mdstart}.nop > /dev/null
 	mount /dev/md${mdstart}.nop $mntpoint
 	chmod 777 $mntpoint
 
 	export runRUNTIME=4m
 	export RUNDIR=$mntpoint/stressX
 
 	su $testuser -c 'cd ..; ./run.sh marcus.cfg' > /dev/null 2>&1
 
 	while mount | grep $mntpoint | grep -q /dev/md; do
 		umount $mntpoint || sleep 1
 	done
 	checkfs /dev/md${mdstart}.nop
 	gnop destroy /dev/md${mdstart}.nop
 	mdconfig -d -u $mdstart
 }
 
-gnop load
+kldstat | grep -q geom_nop || { gnop load 2>/dev/null || exit 0 &&
+    notloaded=1; }
 gnop status || exit
 
 for i in 1k 2k 4k 8k; do
 	test $i
 done
 
-gnop unload
+[ $notloaded ] && gnop unload
+exit 0