diff mbox

[2/4] generic: new case for test mount bind operation

Message ID 20170214005545.29373-3-tytso@mit.edu (mailing list archive)
State New, archived
Headers show

Commit Message

Theodore Ts'o Feb. 14, 2017, 12:55 a.m. UTC 
From: Zorro Lang <zlang@redhat.com>

This case will do function test for mount bind operation, it will
verify below semantics:

---------------------------------------------------------------------------
|         BIND MOUNT OPERATION                                            |
|**************************************************************************
|source(A)->| shared       |       private  |       slave    | unbindable |
| dest(B)  |               |                |                |            |
|   |      |               |                |                |            |
|   v      |               |                |                |            |
|**************************************************************************
|  shared  | shared        |     shared     | shared & slave |  invalid   |
|          |               |                |                |            |
|non-shared| shared        |      private   |      slave     |  invalid   |
***************************************************************************

This case use fsstress to produce a little rand load, to sure basic
operations on the bind mountpoint won't cause hang or panic etc.

Signed-off-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 tests/generic/409     | 182 +++++++++++++++++++++++++
 tests/generic/409.out | 365 ++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/generic/group   |   1 +
 3 files changed, 548 insertions(+)
 create mode 100644 tests/generic/409
 create mode 100644 tests/generic/409.out

Comments

Eryu Guan Feb. 15, 2017, 9:53 a.m. UTC | #1 
On Mon, Feb 13, 2017 at 07:55:43PM -0500, Theodore Ts'o wrote:
> From: Zorro Lang <zlang@redhat.com>
> 
> This case will do function test for mount bind operation, it will
> verify below semantics:
> 
> ---------------------------------------------------------------------------
> |         BIND MOUNT OPERATION                                            |
> |**************************************************************************
> |source(A)->| shared       |       private  |       slave    | unbindable |
> | dest(B)  |               |                |                |            |
> |   |      |               |                |                |            |
> |   v      |               |                |                |            |
> |**************************************************************************
> |  shared  | shared        |     shared     | shared & slave |  invalid   |
> |          |               |                |                |            |
> |non-shared| shared        |      private   |      slave     |  invalid   |
> ***************************************************************************
> 
> This case use fsstress to produce a little rand load, to sure basic
> operations on the bind mountpoint won't cause hang or panic etc.
> 
> Signed-off-by: Zorro Lang <zlang@redhat.com>
> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
> ---
>  tests/generic/409     | 182 +++++++++++++++++++++++++
>  tests/generic/409.out | 365 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/generic/group   |   1 +
>  3 files changed, 548 insertions(+)
>  create mode 100644 tests/generic/409

File mode for new case is better to be 755, so after running tests git
diff won't complain about the mode change.

>  create mode 100644 tests/generic/409.out
> 
> diff --git a/tests/generic/409 b/tests/generic/409
> new file mode 100644
> index 00000000..88bda6c5
> --- /dev/null
> +++ b/tests/generic/409
> @@ -0,0 +1,182 @@
> +#! /bin/bash
> +# FS QA Test 409
> +#
> +# Test mount shared subtrees, verify the bind semantics:
> +#
> +# ---------------------------------------------------------------------------
> +# |         BIND MOUNT OPERATION                                            |
> +# |**************************************************************************
> +# |source(A)->| shared       |       private  |       slave    | unbindable |
> +# | dest(B)  |               |                |                |            |
> +# |   |      |               |                |                |            |
> +# |   v      |               |                |                |            |
> +# |**************************************************************************
> +# |  shared  | shared        |     shared     | shared & slave |  invalid   |
> +# |          |               |                |                |            |
> +# |non-shared| shared        |      private   |      slave     |  invalid   |
> +# ***************************************************************************
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2016 Red Hat Inc.  All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
> +#-----------------------------------------------------------------------
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1	# failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> +	cd /
> +	rm -f $tmp.*
> +	_clear_mount_stack
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +_supported_fs generic
> +_supported_os Linux
> +_require_scratch
> +_require_test

Need a "_require_block_device $SCRATCH_DEV", otherwise test on
NFS/overlay etc. will fail, because we assume $SCRATCH_DEV is a block
device.

> +
> +fs_stress()
> +{
> +	local target=$1
> +
> +	$FSSTRESS_PROG -z -n 50 -p 3 \
> +		       -f creat=5 \
> +		       -f mkdir=5 \
> +		       -f link=2 \
> +		       -f rename=1 \
> +		       -f rmdir=2 \
> +		       -f unlink=1 \
> +		       -f symlink=1 \
> +		       -f write=1 \
> +		       -f read=1 \
> +		       -f chown=1 \
> +		       -f getdents=1 \
> +		       -f fiemap=1 \
> +		       -d $target >/dev/null
> +	sync
> +}
> +
> +# prepare some mountpoint dir
> +MNTHEAD=$TEST_DIR/$seq
> +mkdir $MNTHEAD 2>>$seqres.full
> +mpA=$MNTHEAD/"$$"_mpA
> +mpB=$MNTHEAD/"$$"_mpB
> +mpC=$MNTHEAD/"$$"_mpC
> +mpD=$MNTHEAD/"$$"_mpD
> +
> +find_mnt()
> +{
> +	echo "------"
> +	findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \
> +	    sed -e "s;$mpA;mpA;g" \
> +		-e "s;$mpB;mpB;g" \
> +		-e "s;$mpC;mpC;g" \
> +		-e "s;$mpD;mpD;g" | \
> +	    _filter_spaces | _filter_scratch | \
> +	    _filter_test_dir | sort
> +	echo "======"
> +}
> +
> +start_test()
> +{
> +	local type=$1
> +
> +	_get_mount $SCRATCH_DEV $MNTHEAD
> +	mount --make-"${type}" $MNTHEAD
> +	rm -rf $mpA $mpB $mpC $mpD 2>/dev/null
> +	mkdir $mpA $mpB $mpC $mpD
> +        _scratch_mkfs >$seqres.full 2>&1

We should _scratch_mkfs before mounting $SCRATCH_DEV on $MNTHEAD, and
since the filesystem is newly created, the "rm -rf" line seems not
necessary.

> +}
> +
> +end_test()
> +{
> +	rm -rf $mpA $mpB $mpC $mpD 2>/dev/null
> +	_clear_mount_stack

Unmount all mount points then remove them, otherwise rm always fails
because of "Device is busy".

> +}
> +
> +bind_run()
> +{
> +	local source=$1
> +	local dest=$2
> +
> +	start_test $dest
> +
> +	echo "bind $source on $dest"
> +	_get_mount $SCRATCH_DEV $mpA
> +	mkdir -p $mpA/dir 2>/dev/null
> +	mount --make-shared $mpA
> +	_get_mount --bind $mpA $mpB
> +	mount --make-"$source" $mpB
> +	# maybe unbindable at here
> +	_get_mount --bind $mpB $mpC 2>/dev/null
> +	if [ $? -ne 0 ];then
> +		find_mnt
> +		end_test
> +		return 0
> +	fi
> +	_get_mount --bind $mpC $mpD
> +	for m in $mpA $mpB $mpC $mpD
> +	do
> +		_get_mount $SCRATCH_DEV $m/dir
> +		fs_stress $m/dir
> +		find_mnt
> +		_put_mount
> +	done
> +
> +	end_test
> +}
> +
> +bind_test()
> +{
> +	local dest=$1

dest is not used, can be removed.

The other two tests have similar issues, I'll fix them all.

Thanks,
Eryu
--
To unsubscribe from this list: send the line "unsubscribe fstests" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/tests/generic/409 b/tests/generic/409
new file mode 100644
index 00000000..88bda6c5
--- /dev/null
+++ b/tests/generic/409
@@ -0,0 +1,182 @@ 
+#! /bin/bash
+# FS QA Test 409
+#
+# Test mount shared subtrees, verify the bind semantics:
+#
+# ---------------------------------------------------------------------------
+# |         BIND MOUNT OPERATION                                            |
+# |**************************************************************************
+# |source(A)->| shared       |       private  |       slave    | unbindable |
+# | dest(B)  |               |                |                |            |
+# |   |      |               |                |                |            |
+# |   v      |               |                |                |            |
+# |**************************************************************************
+# |  shared  | shared        |     shared     | shared & slave |  invalid   |
+# |          |               |                |                |            |
+# |non-shared| shared        |      private   |      slave     |  invalid   |
+# ***************************************************************************
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Red Hat Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write the Free Software Foundation,
+# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#-----------------------------------------------------------------------
+#
+
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+	cd /
+	rm -f $tmp.*
+	_clear_mount_stack
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+_supported_fs generic
+_supported_os Linux
+_require_scratch
+_require_test
+
+fs_stress()
+{
+	local target=$1
+
+	$FSSTRESS_PROG -z -n 50 -p 3 \
+		       -f creat=5 \
+		       -f mkdir=5 \
+		       -f link=2 \
+		       -f rename=1 \
+		       -f rmdir=2 \
+		       -f unlink=1 \
+		       -f symlink=1 \
+		       -f write=1 \
+		       -f read=1 \
+		       -f chown=1 \
+		       -f getdents=1 \
+		       -f fiemap=1 \
+		       -d $target >/dev/null
+	sync
+}
+
+# prepare some mountpoint dir
+MNTHEAD=$TEST_DIR/$seq
+mkdir $MNTHEAD 2>>$seqres.full
+mpA=$MNTHEAD/"$$"_mpA
+mpB=$MNTHEAD/"$$"_mpB
+mpC=$MNTHEAD/"$$"_mpC
+mpD=$MNTHEAD/"$$"_mpD
+
+find_mnt()
+{
+	echo "------"
+	findmnt -n -o TARGET,SOURCE $SCRATCH_DEV | \
+	    sed -e "s;$mpA;mpA;g" \
+		-e "s;$mpB;mpB;g" \
+		-e "s;$mpC;mpC;g" \
+		-e "s;$mpD;mpD;g" | \
+	    _filter_spaces | _filter_scratch | \
+	    _filter_test_dir | sort
+	echo "======"
+}
+
+start_test()
+{
+	local type=$1
+
+	_get_mount $SCRATCH_DEV $MNTHEAD
+	mount --make-"${type}" $MNTHEAD
+	rm -rf $mpA $mpB $mpC $mpD 2>/dev/null
+	mkdir $mpA $mpB $mpC $mpD
+        _scratch_mkfs >$seqres.full 2>&1
+}
+
+end_test()
+{
+	rm -rf $mpA $mpB $mpC $mpD 2>/dev/null
+	_clear_mount_stack
+}
+
+bind_run()
+{
+	local source=$1
+	local dest=$2
+
+	start_test $dest
+
+	echo "bind $source on $dest"
+	_get_mount $SCRATCH_DEV $mpA
+	mkdir -p $mpA/dir 2>/dev/null
+	mount --make-shared $mpA
+	_get_mount --bind $mpA $mpB
+	mount --make-"$source" $mpB
+	# maybe unbindable at here
+	_get_mount --bind $mpB $mpC 2>/dev/null
+	if [ $? -ne 0 ];then
+		find_mnt
+		end_test
+		return 0
+	fi
+	_get_mount --bind $mpC $mpD
+	for m in $mpA $mpB $mpC $mpD
+	do
+		_get_mount $SCRATCH_DEV $m/dir
+		fs_stress $m/dir
+		find_mnt
+		_put_mount
+	done
+
+	end_test
+}
+
+bind_test()
+{
+	local dest=$1
+
+        #        source     dest
+	bind_run shared     shared
+	bind_run slave      shared
+	bind_run private    shared
+	bind_run unbindable shared
+
+	bind_run shared     slave
+	bind_run slave      slave
+	bind_run private    slave
+	bind_run unbindable slave
+
+	bind_run shared     private
+	bind_run slave      private
+	bind_run private    private
+	bind_run unbindable private
+}
+
+bind_test
+
+# success, all done
+status=0
+exit
diff --git a/tests/generic/409.out b/tests/generic/409.out
new file mode 100644
index 00000000..91c8909f
--- /dev/null
+++ b/tests/generic/409.out
@@ -0,0 +1,365 @@ 
+QA output created by 409
+bind shared on shared
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind slave on shared
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind private on shared
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind unbindable on shared
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+======
+bind shared on slave
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind slave on slave
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind private on slave
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind unbindable on slave
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+======
+bind shared on private
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind slave on private
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind private on private
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpA/dir SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpB/dir SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpC/dir SCRATCH_DEV
+mpD SCRATCH_DEV
+======
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+mpC SCRATCH_DEV
+mpD SCRATCH_DEV
+mpD/dir SCRATCH_DEV
+======
+bind unbindable on private
+------
+TEST_DIR/409 SCRATCH_DEV
+mpA SCRATCH_DEV
+mpB SCRATCH_DEV
+======
diff --git a/tests/generic/group b/tests/generic/group
index d0bc47de..910b3138 100644
--- a/tests/generic/group
+++ b/tests/generic/group
@@ -411,3 +411,4 @@ 
 406 auto quick dangerous
 407 auto quick clone metadata
 408 auto quick clone dedupe metadata
+409 auto quick mount