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Date:	Tue, 8 Feb 2011 14:49:10 +0100
From:	Borislav Petkov <>
To:	martin f krafft <>
Cc:	LKML <>
Subject: Re: Opteron ECC/ChipKill error

On Tue, Feb 08, 2011 at 02:30:11PM +0100, martin f krafft wrote:
> Dear list,
> I just got to see the following message on my Opteron server:
>   kernel: [810137.744689]  Northbridge Error, node 1
>   kernel: [810137.756250] ECC/ChipKill ECC error.
>   kernel: [810137.766975] EDAC amd64 MC1: CE ERROR_ADDRESS= 0x26bdd40f0
>   kernel: [810137.766982] EDAC MC1: CE page 0x26bdd4, offset 0xf0, grain 0, syndrome 0xe1e2, row 6, channel 1, label "": amd64_edac
> Is there any way to deduce from these data the actual
> culprit/component to replace?

It is a DRAM ECC error on one of the DIMMs on your node 1. If it is a
single occurrence I wouldn't start to worry yet - I'd monitor to see
whether the same row above (row 6) starts increasing its error rate.
Also, sometimes reseating the DIMMs helps.

Can you send your dmesg please?



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