linux-kernel - Re: 2.6.34 Northbridge Chipset Errors on HP Proliant 4 x Opteron in x86

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Message-ID: <AANLkTimbNLYLZ5UFDnenFS2RwfF4IKynf_qpmfE5Befs@mail.gmail.com>
Date:	Thu, 1 Jul 2010 06:47:46 -0600
From:	Jeffrey Merkey <jeffmerkey@...il.com>
To:	Borislav Petkov <bp@...en8.de>,
	Jeffrey Merkey <jeffmerkey@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.34 Northbridge Chipset Errors on HP Proliant 4 x Opteron in 
	x86_64 mode

On Thu, Jul 1, 2010 at 12:26 AM, Borislav Petkov <bp@...en8.de> wrote:
> From: Jeffrey Merkey <jeffmerkey@...il.com>
> Date: Wed, Jun 30, 2010 at 01:21:04PM -0600
>
>> >
>> > It looks like you don't have extended PCI config space accesses enabled
>> > on that machine. Can you send me the whole dmesg?
>> >
>>
>> Here is the complete dmesg log of the Northbridge chip error messages.
>>  The drives report IO problems before the chip error message happens.
>
> Jun 29 02:02:08 cloudstream kernel: Northbridge Error, node 0, core: 0
> Jun 29 02:02:08 cloudstream kernel: ECC/ChipKill ECC error.
> Jun 29 02:02:08 cloudstream kernel: EDAC amd64 MC0: CE ERROR_ADDRESS= 0xc7358280
> Jun 29 02:02:08 cloudstream kernel: EDAC amd64: get_channel_from_ecc_syndrome: error reading F3x180.
> Jun 29 02:02:08 cloudstream kernel: EDAC MC0: CE page 0xc7358, offset 0x280, grain 0, syndrome 0xa4c1, row 3, channel 0, label "": amd64_edac
> Jun 29 02:03:21 cloudstream kernel: Northbridge Error, node 0
> Jun 29 02:03:21 cloudstream kernel: ECC/ChipKill ECC error.
> Jun 29 02:03:21 cloudstream kernel: EDAC amd64 MC0: CE ERROR_ADDRESS= 0xc7358280
> Jun 29 02:03:21 cloudstream kernel: EDAC amd64: get_channel_from_ecc_syndrome: error reading F3x180.
> Jun 29 02:03:21 cloudstream kernel: EDAC MC0: CE page 0xc7358, offset 0x280, grain 0, syndrome 0xa4c1, row 3, channel 0, label "": amd64_edac
>
> Right, this is the ECC happening. I asked about the dmesg because of
> the "error reading F3x180" but you have a K8 machine so no extended PCI
> config space there. And the error message is wrong there, I will move
> that F3x180 read behind a family check since it makes no sense to access
> that on K8.
>
> Thanks.
>
> --
> Regards/Gruss,
>    Boris.
>

OK.  Glad to be of help.  I cleaned the DIMM contacts with a pencil
eraser and the errors seem to have gone away.

Jeff
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