linux-kernel - Re: unable to handle kernel paging request at 40000000 __alloc_memory_core

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Date:	Fri, 9 Jul 2010 22:42:31 +0200
From:	Conny Seidel <conny.seidel@....com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	"Petkov, Borislav" <Borislav.Petkov@....com>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: unable to handle kernel paging request at 40000000
 __alloc_memory_core_early+0x147/0x1d6

On Fri, 9 Jul 2010 16:18:39 -0400
Yinghai Lu <yinghai@...nel.org> wrote:

>On 07/09/2010 12:52 PM, Conny Seidel wrote:
>> Hi,
>>
>> On Fri, 9 Jul 2010 15:08:52 -0400
>> Yinghai Lu <yinghai@...nel.org> wrote:
>>
>>> On 07/09/2010 07:54 AM, Borislav Petkov wrote:
>>>> Hi,
>>>>
>>>> this is something we're getting during testing on one of our boxes
>>>> here, a dual socket Magny-Cours machine. It is oopsing on the addr
>>>> variable in __alloc_memory_core_early() after converting it to a
>>>> virtual address in order to clear the mem region at it. I've
>>>> removed the "#if 0.. #endif" around the printk which dumps the
>>>> ranges in the early node map for more info.
>>>>
>>>> It's latest -git, 32bit build, config is attached.
>>>>
>>>
>>> can not duplicate on all my setup.
>>>
>>> but look at the code there is limit problem with 32 bit...
>>>
>>> please check if it will fix the problem.
>>>
>>> and we will need to rebase early_res to memblock patchset.
>>>
>>> Thanks
>>>
>>> Yinghai Lu
>>>
>>
>> I'm sorry but the patch isn't working.

<snip>

>can you send out boot log from start?
>
>YH
>

Sure. see the complete log in the attached file.

Conny

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View attachment "boot.log" of type "text/x-log" (6760 bytes)

Download attachment "signature.asc" of type "application/pgp-signature" (199 bytes)