linux-kernel - Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

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Message-ID: <20130130200041.GD23895@pd.tnic>
Date:	Wed, 30 Jan 2013 21:00:41 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Jiri Slaby <jslaby@...e.cz>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>, x86@...nel.org,
	lkml <linux-kernel@...r.kernel.org>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

On Wed, Jan 30, 2013 at 08:43:55PM +0100, Jiri Slaby wrote:
> On 01/30/2013 06:44 PM, Borislav Petkov wrote:
> > On Wed, Jan 30, 2013 at 10:27:42AM -0700, Bjorn Helgaas wrote:
> >> You're right, I don't think we're quite ready to merge those patches.
> >> But if your NMI is easy to reproduce, it might be worth removing
> >> e1000e altogether to see if it still happens.
> > 
> > That's the problem - I've seen it only once so far. I'll watch out for
> > it and do the above when I find a reliable way of reproducing it. Will
> > keep you posted.
> 
> It happens here too. Dunno what is the root cause. I *think* that it
> never happened unless I used ethernet. Other than that I see no pattern.
> 
> Attaching -C 20 grep of messages over the last half year if there is
> something that may help somehow.

Cool, so it happens once a day, not every day, everytime during resume,
and with e1000e. Can you try Bjorn's suggestion to remove e1000e
altogether and see if it still happens?

-- 
Regards/Gruss,
    Boris.

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