Index: user/pho/stress2/misc/tmpfs21.sh
===================================================================
--- user/pho/stress2/misc/tmpfs21.sh	(nonexistent)
+++ user/pho/stress2/misc/tmpfs21.sh	(revision 355077)
@@ -0,0 +1,61 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2019 Peter Holm
+#
+# 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
+. ../default.cfg
+
+# umount a tmpfs fs while a rename of a directory is in progress
+# Test scenario suggestion by:	 kib
+
+# umount(8) stuck in suspwt seen.
+# https://people.freebsd.org/~pho/stress/log/tmpfs21.txt
+# Fixed by r355061
+
+(cd ../testcases/swap; ./swap -t 10m -i 20) > /dev/null &
+RUNDIR=$mntpoint/stressX
+start=`date +%s`
+mount | grep -q "on $mntpoint " && umount -f $mntpoint
+while [ $((`date +%s` - start)) -lt 60 ]; do
+	mount -t tmpfs tmpfs $mntpoint || exit 1
+	(cd ../testcases/dirnprename; ./dirnprename -t 2m -i 20 > \
+	    /dev/null 2>&1 ) &
+	pid=$!
+	sleep .`jot -r 1 1 9`
+	for i in `jot 6`; do
+		umount $mntpoint && break
+		sleep .5
+	done 2>&1 | grep -v "Device busy"
+	mount | grep -q "on $mntpoint " && umount -f $mntpoint
+	wait $pid
+done
+while pkill swap; do sleep .2; done
+wait
+exit 0

Property changes on: user/pho/stress2/misc/tmpfs21.sh
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+*
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