Index: user/pho/stress2/misc/fifo4.sh
===================================================================
--- user/pho/stress2/misc/fifo4.sh	(nonexistent)
+++ user/pho/stress2/misc/fifo4.sh	(revision 358667)
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2018 Dell EMC Isilon
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+# tmpfs(5) version of fifo2.sh
+# No problems seen on HEAD.
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+
+odir=`pwd`
+cd /tmp
+sed '1,/^EOF/d' < $odir/fifo2.sh > fifo2.c
+rm -f /tmp/fifo2
+mycc -o fifo2 -Wall -Wextra -O2 -g fifo2.c -lpthread || exit 1
+rm -f fifo2.c
+
+mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
+
+mount -o size=1g -t tmpfs tmpfs $mntpoint
+chmod 777 $mntpoint
+for i in `jot 5`; do
+	mkfifo $mntpoint/f$i
+	chmod 777 $mntpoint/f$i
+done
+
+daemon sh -c "(cd $odir/../testcases/swap; ./swap -t 10m -i 20 -l 100)" > \
+    /dev/null
+sleeptime=12
+st=`date '+%s'`
+while [ $((`date '+%s'` - st)) -lt $((10 * sleeptime)) ]; do
+	(cd $mntpoint; /tmp/fifo2) &
+	while ! pgrep -q fifo2; do :; done
+	start=`date '+%s'`
+	while [ $((`date '+%s'` - start)) -lt $sleeptime ]; do
+		pgrep -q fifo2 || break
+		sleep .5
+	done
+	while pgrep -q fifo2; do pkill -9 fifo2; done
+	wait
+done
+pkill -9 swap fifo2
+while pgrep -q "swap|fifo2"; do pkill -9 swap fifo2; done
+
+for i in `jot 10`; do
+	mount | grep -q "on $mntpoint "  && \
+		umount $mntpoint > /dev/null 2>&1 && break
+	sleep 10
+done
+s=0
+mount | grep -q "on $mntpoint " &&
+    { echo "umount $mntpoint failed"; s=1; }
+rm -f /tmp/fifo2
+exit $s

Property changes on: user/pho/stress2/misc/fifo4.sh
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+*
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