linux-kernel - Re: XFS or Kernel Problem / Bug

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Date:	Tue, 23 Jan 2007 09:31:54 +0100
From:	Stefan Priebe - FH <studium@...fihost.com>
To:	David Chinner <dgc@....com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: XFS or Kernel Problem / Bug

Hi!

I can give you an idea of the workload :-) I have the same problem on an 
nearly idle Server. There runs only a few cronjobs (normal Debian System 
crons).

The load was not higher than 0.01 on this system the last 3 days and 
this morning it crashes with the same error.

I've not tested 2.6.19.x cause this one has some problems with SATA AHCI 
driver which we need. But i can manuelly update only this system with 
2.6.19.x and wait some days.

There were no other messages in the log.

Cheers,
    Stefan

David Chinner schrieb:
> On Mon, Jan 22, 2007 at 09:07:23AM +0100, Stefan Priebe - FH wrote:
>> Hi!
>>
>> The update of the IDE layer was in 2.6.19. I don't think it is a 
>> hardware bug cause all these 5 machines runs fine since a few years with 
>> 2.6.16.X and before. We switch to 2.6.18.6 on monday last week and all 
>> machines began to crash periodically. On friday last week we downgraded 
>> them all to 2.6.16.37 and all 5 machines runs fine again. So i don't 
>> believe it is a hardware problem. Do you really think that could be?
> 
> I was thinking more of a driver change that is being triggered on
> that particular hardware. FWIW, did you test 2.6.19?
> 
> I really need a better idea of the workload these servers are running
> and, ideally, a reproducable test case to track something like
> this down. At the moment I have no idea what is going on and no
> real information on which to even base a guess.
> 
> Were there any other messages in the log?
> 
> On Mon, Jan 22, 2007 at 10:42:36AM +0100, Stefan Priebe - FH wrote:
>> Hi!
>>
>> I've another idea... could it be, that it is a barrier problem? Since 
>> barriers are enabled by default from 2.6.17 on ...
> 
> You could try turning it off. If it does fix the problem, then I'd be
> pointing once again at hardware ;)
> 
> Cheers,
> 
> Dave.

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