Index: user/pho/stress2/misc/extattr2.sh
===================================================================
--- user/pho/stress2/misc/extattr2.sh	(nonexistent)
+++ user/pho/stress2/misc/extattr2.sh	(revision 342027)
@@ -0,0 +1,89 @@
+#!/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.
+#
+# $FreeBSD$
+#
+
+# [Bug 230962] Kernel panic when writing extended attributes with soft updates
+# enabled.
+# "panic: softdep_deallocate_dependencies: dangling deps" seen:
+# https://people.freebsd.org/~pho/stress/log/kostik1121.txt
+
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+. ../default.cfg
+[ "`sysctl -in kern.features.ufs_extattr`" != "1" ] && exit 0
+[ -z "`which setfacl`" ] && exit 0
+
+here=`pwd`
+mount | grep "$mntpoint" | grep -q md${mdstart}$part && umount $mntpoint
+mdconfig -l | grep -q md$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
+
+mkdir -p $mntpoint/.attribute/system
+cd $mntpoint/.attribute/system
+
+extattrctl initattr -p . 388 posix1e.acl_access
+extattrctl initattr -p . 388 posix1e.acl_default
+cd /
+umount $mntpoint
+tunefs -a enable /dev/md${mdstart}$part
+mount /dev/md${mdstart}$part $mntpoint
+mount | grep md${mdstart}$part
+
+export runRUNTIME=10m
+export RUNDIR=$mntpoint/stressX
+if [ `jot -r 1 0 1` -eq 1 ]; then
+	set `df -ik $mntpoint | tail -1 | awk '{print $4,$7}'`
+	export KBLOCKS=$(($1 / 2))
+	export INODES=$(($2 / 2))
+fi
+
+mkdir -p $RUNDIR
+chmod 0777 $RUNDIR
+setfacl -b $RUNDIR
+setfacl -m user:$testuser:rwx,group:$testuser:rwx $RUNDIR
+su $testuser -c "cd $here/..; ./run.sh marcus.cfg" &
+
+sleep 5
+set -x
+while pgrep -U$testuser -q -f run.sh; do
+	find $RUNDIR | xargs -P0 -J% setfacl -m user:$testuser:rwx,group:$testuser:rwx % > /dev/null 2>&1
+done
+wait
+
+s=0
+umount $mntpoint
+checkfs /dev/md${mdstart}$part || s=1
+mdconfig -d -u $mdstart || s=2
+exit $s

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