linux-ext4 - Re: Filesystem state: clean with errors

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <51ACEFA8.8000907@redhat.com>
Date:	Mon, 03 Jun 2013 14:34:00 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Autif Khan <autif.mlist@...il.com>
CC:	linux-ext4@...r.kernel.org
Subject: Re: Filesystem state: clean with errors - what errors?

On 6/3/13 2:29 PM, Autif Khan wrote:
> On Mon, Jun 3, 2013 at 3:13 PM, Eric Sandeen <sandeen@...hat.com> wrote:
>> On 6/3/13 1:45 PM, Autif Khan wrote:
>>> Executing dumpe2fs -h on one of the partitions says
>>>
>>> ...
>>> Filesystem features:      has_journal ext_attr resize_inode dir_index
>>> filetype extent flex_bg sparse_super large_file huge_file uninit_bg
>>> dir_nlink extra_isize
>>> Filesystem flags:         signed_directory_hash
>>> Default mount options:    user_xattr acl
>>> Filesystem state:         clean with errors
>>> ...
>>>
>>> How can I find out what the errors are - the details of the errors.
>>
>> "clean" means the log has been replayed (log is not dirty)
>> "with errors" means that it encountered concistency errors at runtime
>>
>> run e2fsck -f on it to see what it finds (or e2fsck -fn if you want a no-op
>> dry run)
> 
> --- spin ---
> 
> ubuntu@...0013950af6fb:~$ sudo fsck -V -n -f /dev/sda5
> fsck from util-linux 2.20.1
> [/sbin/fsck.ext4 (1) -- /koko] fsck.ext4 -n -f /dev/sda5
> e2fsck 1.42 (29-Nov-2011)
> Warning!  /dev/sda5 is mounted.

Surprising that it didn't find errors since you ran it on a mounted fs!

That's also an older e2fsck, so I suppose it's possible that it missed
something.

> Pass 1: Checking inodes, blocks, and sizes
> Pass 2: Checking directory structure
> Pass 3: Checking directory connectivity
> Pass 4: Checking reference counts
> Pass 5: Checking group summary information
> /dev/sda5: 24770/262144 files (0.1% non-contiguous), 328031/1048576 blocks
> ubuntu@...0013950af6fb:~$
> 
> I am not sure I see any errors. Is there an error here?

No, that didn't report any errors.

If you unmount it and do it w/o -n, it should clear the error state.
Perhaps it encountered an error for a file that got subsequently deleted,
or something - not sure.

-eric

--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html