diff mbox

[v2] ext4/004: add dump/restore test

Message ID 1417588859-13577-1-git-send-email-wangxg.fnst@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Xiaoguang Wang Dec. 3, 2014, 6:40 a.m. UTC 
This test case will first use fsstress to fill a file system, then
dump it to standard output and restore it from standard input, finally
check that the original contents and the new contents generated by
restore tool will be same.

Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
---
 common/config      |  2 ++
 tests/ext4/004     | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/ext4/004.out |  2 ++
 tests/ext4/group   |  3 +-
 4 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100755 tests/ext4/004
 create mode 100644 tests/ext4/004.out

Comments

Eryu Guan Dec. 3, 2014, 7:49 a.m. UTC | #1 
On Wed, Dec 03, 2014 at 02:40:59PM +0800, Xiaoguang Wang wrote:
> This test case will first use fsstress to fill a file system, then
> dump it to standard output and restore it from standard input, finally
> check that the original contents and the new contents generated by
> restore tool will be same.

For the subject "[PATCH v2] ext4/004: add dump/restore test"

The seq number can be skipped for new test.

> 
> Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
> ---
>  common/config      |  2 ++
>  tests/ext4/004     | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/ext4/004.out |  2 ++
>  tests/ext4/group   |  3 +-
>  4 files changed, 95 insertions(+), 1 deletion(-)
>  create mode 100755 tests/ext4/004
>  create mode 100644 tests/ext4/004.out
> 
> diff --git a/common/config b/common/config
> index 1cb08c0..e9971fd 100644
> --- a/common/config
> +++ b/common/config
> @@ -188,6 +188,8 @@ export LOGGER_PROG="`set_prog_path logger`"
>  export DBENCH_PROG="`set_prog_path dbench`"
>  export DMSETUP_PROG="`set_prog_path dmsetup`"
>  export WIPEFS_PROG="`set_prog_path wipefs`"
> +export DUMP_PROG="`set_prog_path dump`"
> +export RESTORE_PROG="`set_prog_path restore`"
>  
>  # Generate a comparable xfsprogs version number in the form of
>  # major * 10000 + minor * 100 + release
> diff --git a/tests/ext4/004 b/tests/ext4/004
> new file mode 100755
> index 0000000..00262dc
> --- /dev/null
> +++ b/tests/ext4/004
> @@ -0,0 +1,89 @@
> +#! /bin/bash
> +# FSQA Test No. 004
> +#
> +# Test "dump | restore"(as opposed to a tape)
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2014 Fujitsu.  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.*
> +	rm -rf $restoredir
> +	rm -rf $dumpdir

$restoredir should be rm'ed before running the test, as part of test
setup not cleanup, as Dave pointed out.

$dumpdir doesn't need cleanup, scratch dev will be recreated in next
test run, Dave pointed this out too.

Also the var names should be "$restore_dir" and "$dump_dir"

> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +
> +dump_dir=$SCRATCH_MNT/dump_restore_dir
> +restore_dir=$TEST_DIR/dump_restore_dir
> +
> +_workout()

Local function doesn't need "_" prefix

> +{
> +	echo "Run fsstress" >> $seqres.full 2>&1

2>&1 of an echo seems useless to me

> +	args=`_scale_fsstress_args -z -f creat=5 -f write=20 -f mkdir=5 -n 1000 -p 15 -d $dump_dir`
> +	echo "fsstress $args" >> $seqres.full
> +
> +	$FSSTRESS_PROG $args >> $seqres.full 2>&1
> +
> +	echo "start Dump/Restore" >> $seqres.full 2>&1

here too

> +	cd $TEST_DIR
> +
> +	$DUMP_PROG -0 -f - $dump_dir 2>/dev/null | $RESTORE_PROG -urvf - >> $seqres.full 2>&1
> +	if [ $? -ne 0 ];then
> +		_fail "Dump/Restore failed"
> +	fi
> +
> +	rm -rf restoresymtable
> +}
> +
> +# real QA test starts here
> +_supported_fs ext4
> +_supported_os Linux
> +
> +_require_test
> +_require_scratch
> +
> +_require_command $DUMP_PROG
> +_require_command $RESTORE_PROG
> +
> +rm -f $seqres.full
> +echo "Silence is golden"
> +
> +_scratch_mkfs_sized $((512 * 1024 * 1024)) >> $seqres.full 2>&1
> +_scratch_mount
> +rm -rf $TEST_DIR/*

Just remove $restore_dir and restoresymtable, not other files, test
dev is supposed to be aged.

Thanks,
Eryu

> +
> +_workout
> +diff -r $dump_dir $restore_dir
> +
> +status=0
> +exit
> diff --git a/tests/ext4/004.out b/tests/ext4/004.out
> new file mode 100644
> index 0000000..af8614a
> --- /dev/null
> +++ b/tests/ext4/004.out
> @@ -0,0 +1,2 @@
> +QA output created by 004
> +Silence is golden
> diff --git a/tests/ext4/group b/tests/ext4/group
> index aa6a53b..e7f1f2a 100644
> --- a/tests/ext4/group
> +++ b/tests/ext4/group
> @@ -6,6 +6,7 @@
>  001 auto prealloc quick
>  002 auto quick prealloc
>  003 auto quick
> +004 auto dump
>  271 auto rw quick
>  301 aio dangerous ioctl rw stress
>  302 aio dangerous ioctl rw stress
> @@ -14,4 +15,4 @@
>  305 auto
>  306 auto rw resize quick
>  307 auto ioctl rw
> -308 auto ioctl rw prealloc quick
> \ No newline at end of file
> +308 auto ioctl rw prealloc quick
> -- 
> 1.8.3.1
> 
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Xiaoguang Wang Dec. 3, 2014, 9:47 a.m. UTC | #2 
Hi,

    Thanks for reviewing, and I have one question below, please have a check :)

On 12/03/2014 03:49 PM, Eryu Guan wrote:
> On Wed, Dec 03, 2014 at 02:40:59PM +0800, Xiaoguang Wang wrote:
>> This test case will first use fsstress to fill a file system, then
>> dump it to standard output and restore it from standard input, finally
>> check that the original contents and the new contents generated by
>> restore tool will be same.
> 
> For the subject "[PATCH v2] ext4/004: add dump/restore test"
> 
> The seq number can be skipped for new test.

OK, will remove it.
> 
>>
>> Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
>> ---
>>  common/config      |  2 ++
>>  tests/ext4/004     | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  tests/ext4/004.out |  2 ++
>>  tests/ext4/group   |  3 +-
>>  4 files changed, 95 insertions(+), 1 deletion(-)
>>  create mode 100755 tests/ext4/004
>>  create mode 100644 tests/ext4/004.out
>>
>> diff --git a/common/config b/common/config
>> index 1cb08c0..e9971fd 100644
>> --- a/common/config
>> +++ b/common/config
>> @@ -188,6 +188,8 @@ export LOGGER_PROG="`set_prog_path logger`"
>>  export DBENCH_PROG="`set_prog_path dbench`"
>>  export DMSETUP_PROG="`set_prog_path dmsetup`"
>>  export WIPEFS_PROG="`set_prog_path wipefs`"
>> +export DUMP_PROG="`set_prog_path dump`"
>> +export RESTORE_PROG="`set_prog_path restore`"
>>  
>>  # Generate a comparable xfsprogs version number in the form of
>>  # major * 10000 + minor * 100 + release
>> diff --git a/tests/ext4/004 b/tests/ext4/004
>> new file mode 100755
>> index 0000000..00262dc
>> --- /dev/null
>> +++ b/tests/ext4/004
>> @@ -0,0 +1,89 @@
>> +#! /bin/bash
>> +# FSQA Test No. 004
>> +#
>> +# Test "dump | restore"(as opposed to a tape)
>> +#
>> +#-----------------------------------------------------------------------
>> +# Copyright (c) 2014 Fujitsu.  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.*
>> +	rm -rf $restoredir
>> +	rm -rf $dumpdir
> 
> $restoredir should be rm'ed before running the test, as part of test
> setup not cleanup, as Dave pointed out.

I wonder why we should not rm $restoredir, in which there will be much
data generated by restore, and these data are meaningless ?
> 
> $dumpdir doesn't need cleanup, scratch dev will be recreated in next
> test run, Dave pointed this out too.

OK, sorry for missing this.
> 
> Also the var names should be "$restore_dir" and "$dump_dir"
> 
>> +}
>> +
>> +# get standard environment, filters and checks
>> +. ./common/rc
>> +. ./common/filter
>> +
>> +dump_dir=$SCRATCH_MNT/dump_restore_dir
>> +restore_dir=$TEST_DIR/dump_restore_dir
>> +
>> +_workout()
> 
> Local function doesn't need "_" prefix

OK.
> 
>> +{
>> +	echo "Run fsstress" >> $seqres.full 2>&1
> 
> 2>&1 of an echo seems useless to me
> 
>> +	args=`_scale_fsstress_args -z -f creat=5 -f write=20 -f mkdir=5 -n 1000 -p 15 -d $dump_dir`
>> +	echo "fsstress $args" >> $seqres.full
>> +
>> +	$FSSTRESS_PROG $args >> $seqres.full 2>&1
>> +
>> +	echo "start Dump/Restore" >> $seqres.full 2>&1
> 
> here too
> 
>> +	cd $TEST_DIR
>> +
>> +	$DUMP_PROG -0 -f - $dump_dir 2>/dev/null | $RESTORE_PROG -urvf - >> $seqres.full 2>&1
>> +	if [ $? -ne 0 ];then
>> +		_fail "Dump/Restore failed"
>> +	fi
>> +
>> +	rm -rf restoresymtable
>> +}
>> +
>> +# real QA test starts here
>> +_supported_fs ext4
>> +_supported_os Linux
>> +
>> +_require_test
>> +_require_scratch
>> +
>> +_require_command $DUMP_PROG
>> +_require_command $RESTORE_PROG
>> +
>> +rm -f $seqres.full
>> +echo "Silence is golden"
>> +
>> +_scratch_mkfs_sized $((512 * 1024 * 1024)) >> $seqres.full 2>&1
>> +_scratch_mount
>> +rm -rf $TEST_DIR/*
> 
> Just remove $restore_dir and restoresymtable, not other files, test
> dev is supposed to be aged.

OK, i see, thanks.
I'll send a V3 later.

Regards,
Xiaoguang Wang

> 
> Thanks,
> Eryu
> 
>> +
>> +_workout
>> +diff -r $dump_dir $restore_dir
>> +
>> +status=0
>> +exit
>> diff --git a/tests/ext4/004.out b/tests/ext4/004.out
>> new file mode 100644
>> index 0000000..af8614a
>> --- /dev/null
>> +++ b/tests/ext4/004.out
>> @@ -0,0 +1,2 @@
>> +QA output created by 004
>> +Silence is golden
>> diff --git a/tests/ext4/group b/tests/ext4/group
>> index aa6a53b..e7f1f2a 100644
>> --- a/tests/ext4/group
>> +++ b/tests/ext4/group
>> @@ -6,6 +6,7 @@
>>  001 auto prealloc quick
>>  002 auto quick prealloc
>>  003 auto quick
>> +004 auto dump
>>  271 auto rw quick
>>  301 aio dangerous ioctl rw stress
>>  302 aio dangerous ioctl rw stress
>> @@ -14,4 +15,4 @@
>>  305 auto
>>  306 auto rw resize quick
>>  307 auto ioctl rw
>> -308 auto ioctl rw prealloc quick
>> \ No newline at end of file
>> +308 auto ioctl rw prealloc quick
>> -- 
>> 1.8.3.1
>>
>> --
>> 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
> .
> 

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Eryu Guan Dec. 4, 2014, 7:29 a.m. UTC | #3 
On Wed, Dec 03, 2014 at 05:47:18PM +0800, Xiaoguang Wang wrote:
> Hi,
> 
>     Thanks for reviewing, and I have one question below, please have a check :)
> 
> On 12/03/2014 03:49 PM, Eryu Guan wrote:
> > On Wed, Dec 03, 2014 at 02:40:59PM +0800, Xiaoguang Wang wrote:
> >> This test case will first use fsstress to fill a file system, then
> >> dump it to standard output and restore it from standard input, finally
> >> check that the original contents and the new contents generated by
> >> restore tool will be same.
> > 
> > For the subject "[PATCH v2] ext4/004: add dump/restore test"
> > 
> > The seq number can be skipped for new test.
> 
> OK, will remove it.
> > 
> >>
> >> Signed-off-by: Xiaoguang Wang <wangxg.fnst@cn.fujitsu.com>
> >> ---
> >>  common/config      |  2 ++
> >>  tests/ext4/004     | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> >>  tests/ext4/004.out |  2 ++
> >>  tests/ext4/group   |  3 +-
> >>  4 files changed, 95 insertions(+), 1 deletion(-)
> >>  create mode 100755 tests/ext4/004
> >>  create mode 100644 tests/ext4/004.out
> >>
> >> diff --git a/common/config b/common/config
> >> index 1cb08c0..e9971fd 100644
> >> --- a/common/config
> >> +++ b/common/config
> >> @@ -188,6 +188,8 @@ export LOGGER_PROG="`set_prog_path logger`"
> >>  export DBENCH_PROG="`set_prog_path dbench`"
> >>  export DMSETUP_PROG="`set_prog_path dmsetup`"
> >>  export WIPEFS_PROG="`set_prog_path wipefs`"
> >> +export DUMP_PROG="`set_prog_path dump`"
> >> +export RESTORE_PROG="`set_prog_path restore`"
> >>  
> >>  # Generate a comparable xfsprogs version number in the form of
> >>  # major * 10000 + minor * 100 + release
> >> diff --git a/tests/ext4/004 b/tests/ext4/004
> >> new file mode 100755
> >> index 0000000..00262dc
> >> --- /dev/null
> >> +++ b/tests/ext4/004
> >> @@ -0,0 +1,89 @@
> >> +#! /bin/bash
> >> +# FSQA Test No. 004
> >> +#
> >> +# Test "dump | restore"(as opposed to a tape)
> >> +#
> >> +#-----------------------------------------------------------------------
> >> +# Copyright (c) 2014 Fujitsu.  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.*
> >> +	rm -rf $restoredir
> >> +	rm -rf $dumpdir
> > 
> > $restoredir should be rm'ed before running the test, as part of test
> > setup not cleanup, as Dave pointed out.
> 
> I wonder why we should not rm $restoredir, in which there will be much
> data generated by restore, and these data are meaningless ?

Usually we leave TEST_DEV populated and being used over time, so you
don't have to remove new files generated by the test.

But if the generated data takes a lot of space and fills TEST_DEV
quickly you can remove the files in cleanup, maybe add some comments
to explain why.

Thanks,
Eryu
> > 
> > $dumpdir doesn't need cleanup, scratch dev will be recreated in next
> > test run, Dave pointed this out too.
> 
> OK, sorry for missing this.
> > 
> > Also the var names should be "$restore_dir" and "$dump_dir"
> > 
> >> +}
> >> +
> >> +# get standard environment, filters and checks
> >> +. ./common/rc
> >> +. ./common/filter
> >> +
> >> +dump_dir=$SCRATCH_MNT/dump_restore_dir
> >> +restore_dir=$TEST_DIR/dump_restore_dir
> >> +
> >> +_workout()
> > 
> > Local function doesn't need "_" prefix
> 
> OK.
> > 
> >> +{
> >> +	echo "Run fsstress" >> $seqres.full 2>&1
> > 
> > 2>&1 of an echo seems useless to me
> > 
> >> +	args=`_scale_fsstress_args -z -f creat=5 -f write=20 -f mkdir=5 -n 1000 -p 15 -d $dump_dir`
> >> +	echo "fsstress $args" >> $seqres.full
> >> +
> >> +	$FSSTRESS_PROG $args >> $seqres.full 2>&1
> >> +
> >> +	echo "start Dump/Restore" >> $seqres.full 2>&1
> > 
> > here too
> > 
> >> +	cd $TEST_DIR
> >> +
> >> +	$DUMP_PROG -0 -f - $dump_dir 2>/dev/null | $RESTORE_PROG -urvf - >> $seqres.full 2>&1
> >> +	if [ $? -ne 0 ];then
> >> +		_fail "Dump/Restore failed"
> >> +	fi
> >> +
> >> +	rm -rf restoresymtable
> >> +}
> >> +
> >> +# real QA test starts here
> >> +_supported_fs ext4
> >> +_supported_os Linux
> >> +
> >> +_require_test
> >> +_require_scratch
> >> +
> >> +_require_command $DUMP_PROG
> >> +_require_command $RESTORE_PROG
> >> +
> >> +rm -f $seqres.full
> >> +echo "Silence is golden"
> >> +
> >> +_scratch_mkfs_sized $((512 * 1024 * 1024)) >> $seqres.full 2>&1
> >> +_scratch_mount
> >> +rm -rf $TEST_DIR/*
> > 
> > Just remove $restore_dir and restoresymtable, not other files, test
> > dev is supposed to be aged.
> 
> OK, i see, thanks.
> I'll send a V3 later.
> 
> Regards,
> Xiaoguang Wang
> 
> > 
> > Thanks,
> > Eryu
> > 
> >> +
> >> +_workout
> >> +diff -r $dump_dir $restore_dir
> >> +
> >> +status=0
> >> +exit
> >> diff --git a/tests/ext4/004.out b/tests/ext4/004.out
> >> new file mode 100644
> >> index 0000000..af8614a
> >> --- /dev/null
> >> +++ b/tests/ext4/004.out
> >> @@ -0,0 +1,2 @@
> >> +QA output created by 004
> >> +Silence is golden
> >> diff --git a/tests/ext4/group b/tests/ext4/group
> >> index aa6a53b..e7f1f2a 100644
> >> --- a/tests/ext4/group
> >> +++ b/tests/ext4/group
> >> @@ -6,6 +6,7 @@
> >>  001 auto prealloc quick
> >>  002 auto quick prealloc
> >>  003 auto quick
> >> +004 auto dump
> >>  271 auto rw quick
> >>  301 aio dangerous ioctl rw stress
> >>  302 aio dangerous ioctl rw stress
> >> @@ -14,4 +15,4 @@
> >>  305 auto
> >>  306 auto rw resize quick
> >>  307 auto ioctl rw
> >> -308 auto ioctl rw prealloc quick
> >> \ No newline at end of file
> >> +308 auto ioctl rw prealloc quick
> >> -- 
> >> 1.8.3.1
> >>
> >> --
> >> 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
> > .
> > 
> 
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diff mbox

Patch

diff --git a/common/config b/common/config
index 1cb08c0..e9971fd 100644
--- a/common/config
+++ b/common/config
@@ -188,6 +188,8 @@  export LOGGER_PROG="`set_prog_path logger`"
 export DBENCH_PROG="`set_prog_path dbench`"
 export DMSETUP_PROG="`set_prog_path dmsetup`"
 export WIPEFS_PROG="`set_prog_path wipefs`"
+export DUMP_PROG="`set_prog_path dump`"
+export RESTORE_PROG="`set_prog_path restore`"
 
 # Generate a comparable xfsprogs version number in the form of
 # major * 10000 + minor * 100 + release
diff --git a/tests/ext4/004 b/tests/ext4/004
new file mode 100755
index 0000000..00262dc
--- /dev/null
+++ b/tests/ext4/004
@@ -0,0 +1,89 @@ 
+#! /bin/bash
+# FSQA Test No. 004
+#
+# Test "dump | restore"(as opposed to a tape)
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2014 Fujitsu.  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.*
+	rm -rf $restoredir
+	rm -rf $dumpdir
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+
+dump_dir=$SCRATCH_MNT/dump_restore_dir
+restore_dir=$TEST_DIR/dump_restore_dir
+
+_workout()
+{
+	echo "Run fsstress" >> $seqres.full 2>&1
+	args=`_scale_fsstress_args -z -f creat=5 -f write=20 -f mkdir=5 -n 1000 -p 15 -d $dump_dir`
+	echo "fsstress $args" >> $seqres.full
+
+	$FSSTRESS_PROG $args >> $seqres.full 2>&1
+
+	echo "start Dump/Restore" >> $seqres.full 2>&1
+	cd $TEST_DIR
+
+	$DUMP_PROG -0 -f - $dump_dir 2>/dev/null | $RESTORE_PROG -urvf - >> $seqres.full 2>&1
+	if [ $? -ne 0 ];then
+		_fail "Dump/Restore failed"
+	fi
+
+	rm -rf restoresymtable
+}
+
+# real QA test starts here
+_supported_fs ext4
+_supported_os Linux
+
+_require_test
+_require_scratch
+
+_require_command $DUMP_PROG
+_require_command $RESTORE_PROG
+
+rm -f $seqres.full
+echo "Silence is golden"
+
+_scratch_mkfs_sized $((512 * 1024 * 1024)) >> $seqres.full 2>&1
+_scratch_mount
+rm -rf $TEST_DIR/*
+
+_workout
+diff -r $dump_dir $restore_dir
+
+status=0
+exit
diff --git a/tests/ext4/004.out b/tests/ext4/004.out
new file mode 100644
index 0000000..af8614a
--- /dev/null
+++ b/tests/ext4/004.out
@@ -0,0 +1,2 @@ 
+QA output created by 004
+Silence is golden
diff --git a/tests/ext4/group b/tests/ext4/group
index aa6a53b..e7f1f2a 100644
--- a/tests/ext4/group
+++ b/tests/ext4/group
@@ -6,6 +6,7 @@ 
 001 auto prealloc quick
 002 auto quick prealloc
 003 auto quick
+004 auto dump
 271 auto rw quick
 301 aio dangerous ioctl rw stress
 302 aio dangerous ioctl rw stress
@@ -14,4 +15,4 @@ 
 305 auto
 306 auto rw resize quick
 307 auto ioctl rw
-308 auto ioctl rw prealloc quick
\ No newline at end of file
+308 auto ioctl rw prealloc quick