stress2: Added a regression test

tools/test/stress2/misc/growfs2.sh

@@ -0,0 +1,65 @@
+#!/bin/sh
+
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+# Copyright (c) 2023 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.
+#
+
+# growfs(8) test with output to FS to be grown.
+# A regression test for D37896 ufs/suspend: deny suspension if calling
+# process has file from mp opened for write
+# Before D37896 this would result in growfs(8) hanging.
+
+. ../default.cfg
+[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
+
+log=/tmp/growfs2.sh.log
+s=0
+set -eu
+mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
+[ -c /dev/md$mdstart ] &&  mdconfig -d -u $mdstart
+mdconfig -a -t swap -s 32g -u $mdstart
+/sbin/gpart create -s GPT md$mdstart > /dev/null
+/sbin/gpart add -t freebsd-ufs -s 2g -a 4k md$mdstart > /dev/null
+set +e
+
+newfs $newfs_flags md${mdstart}p1 > /dev/null
+mount /dev/md${mdstart}p1 $mntpoint
+cp -r /usr/include $mntpoint/inc1
+
+gpart resize -i 1 -s 31g -a 4k md$mdstart
+echo "Expect: growfs: UFSSUSPEND: Resource deadlock avoided"
+growfs -y md${mdstart}p1 > $mntpoint/log && s=1 ||  s=0
+
+cp -r /usr/include $mntpoint/inc2
+umount $mntpoint
+fsck -fy /dev/md${mdstart}p1 > $log 2>&1
+grep -q "WAS MODIFIED" $log && s=2
+grep -q CLEAN $log || s=3
+[ $s -ne 0 ] && cat $log
+
+mdconfig -d -u $mdstart
+rm -f $log
+exit $s