Index: user/pho/stress2/misc/full.sh
===================================================================
--- user/pho/stress2/misc/full.sh	(revision 315898)
+++ user/pho/stress2/misc/full.sh	(revision 315899)
@@ -1,63 +1,64 @@
 #!/bin/sh
 
 #
 # Copyright (c) 2016 Dell EMC
 # 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
 
 # Run all tests from testcases on a 2g swap backed MD with UFS SU fs.
 
 # "panic: SACK scoreboard must not be empty" seen:
 # https://people.freebsd.org/~pho/stress/log/full.txt
 # Fixed by r310547.
 
 . ../default.cfg
+kldstat -v | grep -q pty || kldload pty # ignore any load failure
 
 mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
 [ -c /dev/md$mdstart ] &&  mdconfig -d -u $mdstart
 mdconfig -a -t swap -s 2g -u $mdstart
 bsdlabel -w md$mdstart auto
 newfs $newfs_flags md${mdstart}$part > /dev/null
 mount /dev/md${mdstart}$part $mntpoint
 chmod 777 $mntpoint
 
 export LOAD=80
 export rwLOAD=80
 export runRUNTIME=10m
 export RUNDIR=$mntpoint/stressX
 export TESTPROGS=`cd ..; find testcases/ -perm -1 -type f | \
     egrep -v "/run/|/syscall/"`
 
 su $testuser -c 'cd ..; ./testcases/run/run $TESTPROGS'
 
 ../tools/killall.sh
 while mount | grep "on $mntpoint " | grep -q /dev/md; do
 	umount $mntpoint || sleep 1
 done
 checkfs /dev/md${mdstart}$part
 mdconfig -d -u $mdstart