stress2: Added a new zfs test scenario

tools/test/stress2/misc/all.exclude

@@ -78,6 +78,7 @@ unionfs2.sh		insmntque: mp-safe fs and non-locked vp is not ...		20111219
 unionfs3.sh		insmntque: mp-safe fs and non-locked vp is not ...		20111216
 unionfs4.sh		WiP								20210916
 unionfs5.sh		WiP								20210916
+zfs14.sh		WiP								20211110
 
 # Test not to run for other reasons:
 

tools/test/stress2/misc/zfs14.sh

@@ -0,0 +1,90 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2021 Peter Holm <pho@FreeBSD.org>
+#
+# 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.
+#
+
+# "userret: returning with the following locks held:" seen:
+# https://people.freebsd.org/~pho/stress/log/log0188.txt
+
+# Test scenario suggestion by: markj@
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+kldstat -v | grep -q zfs.ko  || { kldload zfs.ko; loaded=1; } ||
+    exit 0
+
+. ../default.cfg
+
+here=`pwd`
+mp1=/stress2_tank/test
+u1=$mdstart
+u2=$((u1 + 1))
+
+set -e
+mdconfig -l | grep -q md$u1 && mdconfig -d -u $u1
+mdconfig -l | grep -q md$u2 && mdconfig -d -u $u2
+
+mdconfig -s 2g -u $u1
+mdconfig -s 2g -u $u2
+
+zpool list | egrep -q "^stress2_tank" && zpool destroy stress2_tank
+[ -d /stress2_tank ] && rm -rf /stress2_tank
+zpool create stress2_tank md$u1 md$u2
+zfs create stress2_tank/test
+set +e
+
+export RUNDIR=/stress2_tank/test/stressX
+export runRUNTIME=5m
+export LOAD=70
+export TESTPROGS=`cd ..; find testcases/ -perm -1 -type f | \
+    egrep -Ev "/run/|/tcp/|/udp/"`
+
+(cd ..; ./testcases/run/run $TESTPROGS > /dev/null 2>&1) &
+
+sleep 5
+zfs snapshot stress2_tank/test@1
+
+start=`date +%s`
+while [ $((`date +%s` - start)) -lt 300 ]; do
+	if [ `jot -r 1 1 2` -eq 1 ]; then
+		zfs umount -f stress2_tank/test &&
+		   zfs mount stress2_tank/test
+	else
+		zfs rollback stress2_tank/test@1
+	fi
+	sleep 5
+	zfs list | grep -q /stress2_tank/test || break
+done
+wait
+
+zfs umount stress2_tank/test
+zfs destroy -r stress2_tank
+zpool destroy stress2_tank
+
+mdconfig -d -u $u1
+mdconfig -d -u $u2
+[ -n "$loaded" ] && kldunload zfs.ko
+exit 0