linux-kernel - Re: [discuss] 2.6.19-rc6: known regressions (v4)

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Message-ID: <Pine.LNX.4.64.0611221703060.31195@skynet.skynet.ie>
Date:	Wed, 22 Nov 2006 17:03:44 +0000 (GMT)
From:	Mel Gorman <mel@....ul.ie>
To:	Andre Noll <maan@...temlinux.org>
Cc:	Andi Kleen <ak@...e.de>, discuss@...-64.org,
	Adrian Bunk <bunk@...sta.de>,
	Linus Torvalds <torvalds@...l.org>,
	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	David Rientjes <rientjes@...washington.edu>,
	Mel Gorman <mel@...net.ie>
Subject: Re: [discuss] 2.6.19-rc6: known regressions (v4)

On Wed, 22 Nov 2006, Andre Noll wrote:

> On 11:42, Andi Kleen wrote:
>> ject    : x86_64: Bad page state in process 'swapper'
>>> References : http://lkml.org/lkml/2006/11/10/135
>>>              http://lkml.org/lkml/2006/11/10/208
>>> Submitter  : Andre Noll <maan@...temlinux.org>
>>> Handled-By : David Rientjes <rientjes@...washington.edu>
>>> Status     : problem is being debugged
>>
>> Does this still happen with -rc6?
>
> Unfortunately, yes. I tried rc6, current git, and currrent git + David
> Rientjes' patch. They all show the same behaviour.
>
>> It's probably another bug in the memmap parsing rewrite (Mel cc'ed)
>> but the debugging information in the standard kernel unfortunately
>> doesn't give enough output to find out where it happens.
>
> Feel free to send me a debugging patch..
>



You should have received such a patch from me later in the thread. In 
combination with the patch at http://lkml.org/lkml/2006/11/10/198 and a 
copy of the dmesg, I might be able to guess what is going wrong. Thanks

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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