Re: ls: reading directory .: Input/output error on reiser4 partition

[Edward Shishkin <edward.shishkin@gmail.com>]

On 04/11/2011 05:32 PM, doiggl@velocitynet.com.au wrote:
> On Mon, 11 Apr 2011 15:57:23 +0200, Edward Shishkin
> <edward.shishkin@gmail.com>  wrote:
>> On 04/11/2011 03:50 PM, doiggl@velocitynet.com.au wrote:
>>> Hello
>>> I get this error on a Reiser4 disk:
>>>
>>> What are the commands to
>>> - check disk structure
>>
>>
>> make sure /dev/sdd is unmounted, or mounted read-only;
>> fsck.reiser4 /dev/sdd
>>
>>
>>> - list any errors
>>> - repair errors
>>>
>>> I am using Reiser4 vers 2.6.38
>>> Build log
>>>
> ->https://build.opensuse.org/package/binaries?package=kernel-reiser4&project=home%3Adoiggl&repository=openSUSE_11.4
>>>
>
> Hello
> Thanks for the info
> I did the following
> - installed reiser4progs
> - umount  /dev/sdd
>
> This next step will take a long time [in progress] Its at 0%
> -I'll reply later with full result, its checking 1.2 TB data and>  250,000
> files


Reiser4 doesn't have production stability so far,
so, creating large reiser4 volumes is not a good idea.

An old nasty bug still lives in reiser4 kernel module
(appearing objects with inconsistent key order).
Fsck will cope with this kind of corruption, however,
it will take a lot of time.

Thanks,
Edward.


>

> What I have so far.
> Glenn
>
> # fsck.reiser4 /dev/sdd
> *******************************************************************
> This is an EXPERIMENTAL version of fsck.reiser4. Read README first.
> *******************************************************************
> ***** fsck.reiser4 started at Tue Apr 12 01:18:23 2011
> Reiser4 fs was detected on /dev/sdd.
>
>
> Master super block (16):
> magic:          ReIsEr4
> blksize:        4096
> format:         0x0 (format40)
> uuid:           3006ced1-7490-4ea8-a9b8-d82143c6bede
> label:<none>
>
> Format super block (17):
> plugin:         format40
> description:    Disk-format plugin.
> version:        0
> magic:          ReIsEr40FoRmAt
> mkfs id:        0x1ddaf754
> flushes:        0
> blocks:         488378640
> free blocks:    184741937
> root block:     240062537
> tail policy:    0x2 (smart)
> next oid:       0xe6e2d
> file count:     254746
> tree height:    6
> key policy:     LARGE
>
>
> CHECKING THE STORAGE TREE 0%
> FSCK: node.c: 108: repair_node_items_check: Node (7616539), items (6) and
> (7): Wrong order of keys.
>
> FSCK: filter.c: 407: repair_filter_update_traverse: Node (7616539): the
> node is broken. Pointed from the node (35239054), item (12), unit (0). The
> whole
> subtree is skipped.