Re: [PATCH] ext4: regression test for hang when processing corrupted orphaned inode list

[Guangwen Feng <fenggw-fnst@cn.fujitsu.com>]

Hi, Eryu.
Sorry, I received email failure notification that it was undeliverable to your address.
So I resend it to the mailing list.

On 06/13/2016 06:15 PM, Guangwen Feng wrote:
> Hi!
> 
> Thanks for your review and kindly reply.
> I will rewrite the patch according to your suggestion.
> 
> On 06/13/2016 05:33 PM, Eryu Guan wrote:
>> On Mon, Jun 13, 2016 at 05:09:12PM +0800, Guangwen Feng wrote:
>>> Commit c9eb13a fixed this bug:
>>> 	ext4: fix hang when processing corrupted orphaned inode list
>>>
>>> Signed-off-by: Guangwen Feng <fenggw-fnst@cn.fujitsu.com>
>>> ---
>>>  tests/ext4/022     | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>  tests/ext4/022.out |  1 +
>>>  tests/ext4/group   |  1 +
>>>  3 files changed, 57 insertions(+)
>>>  create mode 100755 tests/ext4/022
>>>  create mode 100644 tests/ext4/022.out
>>>
>>> diff --git a/tests/ext4/022 b/tests/ext4/022
>>> new file mode 100755
>>> index 0000000..a3cc094
>>> --- /dev/null
>>> +++ b/tests/ext4/022
>>> @@ -0,0 +1,55 @@
>>> +#! /bin/bash
>>> +# FS QA Test 022
>>> +#
>>> +# Regression test for commit:
>>> +# c9eb13a ext4: fix hang when processing corrupted orphaned inode list
>>> +#
>>> +#-----------------------------------------------------------------------
>>> +# Copyright (c) 2016 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"
>>> +
>>> +status=1	# failure is the default!
>>> +trap "_cleanup; exit \$status" 0 1 2 3 15
>>> +
>>> +_cleanup()
>>> +{
>>> +    cd /
>>
>> Please use tab not space for indention.
>>
>> And I think we need "rm -f $tmp.*" in _cleanup() even if you don't take
>> use any $tmp.* files, because helper functions may use the tmp files
>> internally, we should remove them as well.
>>
>>> +}
>>> +
>>> +# get standard environment, filters and checks
>>> +. ./common/rc
>>> +
>>> +# remove previous $seqres.full before test
>>> +rm -f $seqres.full
>>> +
>>> +# real QA test starts here
>>> +_supported_fs ext4
>>
>> It could support ext2/ext3 as well, and move the test to shared
>> directory, as what shared/001 does.
>>
>>> +_supported_os Linux
>>> +_require_scratch
>>> +_require_debugfs
>>
>> This requires debugfs pseudo filesystem, not debugfs binary. Use
>> _require_command "$DEBUGFS_PROG" debugfs
>>
>> But you may want to define $DEBUGFS_PROG first in common/config.
>>
>>> +
>>> +_scratch_mkfs >>$seqres.full 2>&1
>>> +debugfs -w -R "ssv last_orphan 5" $SCRATCH_DEV >>$seqres.full 2>&1
>>
>> Though the bug only happens when last_orphan is set to 5, I think we can
>> test all reserved inode numbers, 1-10, 11 is the first non-reserved
>> inode.
>>
>>> +_scratch_mount
>>> +
>>> +# success, all done
>>> +status=0
>>> +exit
>>> diff --git a/tests/ext4/022.out b/tests/ext4/022.out
>>> new file mode 100644
>>> index 0000000..0266a8a
>>> --- /dev/null
>>> +++ b/tests/ext4/022.out
>>> @@ -0,0 +1 @@
>>> +QA output created by 022
>>
>> You need a "Silence is golden" in golden image to indicate that this
>> test doesn't expect any output.
>>
>>> diff --git a/tests/ext4/group b/tests/ext4/group
>>> index 9e28159..3e0146b 100644
>>> --- a/tests/ext4/group
>>> +++ b/tests/ext4/group
>>> @@ -23,6 +23,7 @@
>>>  018 fuzzers
>>>  019 fuzzers
>>>  020 auto quick ioctl rw
>>> +022 auto quick
>>
>> If you're not using big seq number on purpose, pick the smallest
>> available sequence number, that's 021 in this case.
> 
> I see there is a 021 in the mailing list:
> fstests: ext4: regression test for fsync transaction ids initialization
> 
> Anyway, I will change it to the smallest available sequence number for now.
> 
> Best Regards,
> Guangwen Feng
> 
>>
>> Thanks,
>> Eryu
>>
>>>  271 auto rw quick
>>>  301 aio auto ioctl rw stress
>>>  302 aio auto ioctl rw stress
>>> -- 
>>> 1.8.4.2
>>>
>>>
>>>
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>>
>>
>> .
>>
> 
> 
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