linux-kernel - Re: [PATCH 3/3] ie31200

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Message-ID: <20140409191454.GQ6529@pd.tnic>
Date:	Wed, 9 Apr 2014 21:14:54 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	Jason Baron <jbaron@...mai.com>
Cc:	"Luck, Tony" <tony.luck@...el.com>,
	Aristeu Rozanski <aris@...hat.com>,
	"hpa@...or.com" <hpa@...or.com>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"dougthompson@...ssion.com" <dougthompson@...ssion.com>,
	"m.chehab@...sung.com" <m.chehab@...sung.com>,
	"mitake@....info.waseda.ac.jp" <mitake@....info.waseda.ac.jp>,
	"linux-edac@...r.kernel.org" <linux-edac@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] ie31200_edac: Add driver

On Wed, Apr 09, 2014 at 02:57:19PM -0400, Jason Baron wrote:
> Right, so maybe the fact that its a desktop chipset means that it
> behaves differently and doesn't raise MCEs on memory errors. We have a
> bunch of these processors and we haven't yet seen an MCE raised on a
> memory error.

This can't be - an uncorrectable error will have to generate a machine
check exception if consumed - there's no other option.

Can you do

rdmsr 0x179
rdmsr 0x17b

and paste the results here?

> The reason I went with ie31200 is that afaiu the memory controller hub
> is integrated into the cpu. Another alternative might be ie312xx?

Yeah, if Tony doesn't come up with something more official about that
MCH.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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