Re: permanent XFS volume corruption

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>>> On 12.05.17 at 17:11, <sandeen@xxxxxxxxxxx> wrote:

> 
> On 5/12/17 10:04 AM, Eric Sandeen wrote:
>> On 5/12/17 9:09 AM, Jan Beulich wrote:
>>>>>> On 12.05.17 at 15:56, <sandeen@xxxxxxxxxxx> wrote:
>>>> On 5/12/17 1:26 AM, Jan Beulich wrote:
>>>>> So on the earlier instance, where I did run actual repairs (and
>>>>> indeed multiple of them), the problem re-surfaces every time
>>>>> I mount the volume again.
>>>> Ok, what is the exact sequence there, from repair to re-corruption?
>>> Simply mount the volume after repairing (with or without an
>>> intermediate reboot) and access respective pieces of the fs
>>> again. As said, with /var/run affected on that first occasion,
>>> I couldn't even cleanly boot again without seeing the
>>> corruption re-surface.
>> 
>> Mount under what kernel, and access in what way?  I'm looking for a
>> recipe to reproduce what you've seen using the metadump you've provided.
>> 
>> However:
>> 
>> With further testing I see that xfs_repair v3.1.8 /does not/
>> entirely fix the fs; if I run 3.1.8 and then run upstream repair, it
>> finds and fixes more bad flags on inode 764 (lib/xenstored/tdb) that 3.1.8
>> didn't touch.  The verifiers in an upstream kernel may keep tripping
>> over that until newer repair fixes it...
> 
> (Indeed just running xfs_repair 3.1.8 finds the same corruption over and 
> over)
> 
> Please try a newer xfs_repair, and see if it resolves your problem.

It seems to have improved the situation (on the first system I had
the issue on), but leaves me with at least "Operation not permitted"
upon init scripts (or me manually) rm-ing (or mv-ing) /var/run/*.pid
(or mv-ing even /var/run itself). I'm not sure how worried I need to
be, but this surely doesn't look overly healthy yet. The kernel
warnings are all gone, though.

Jan

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