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

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Date:	Fri, 01 Mar 2013 13:55:58 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Borislav Petkov <bp@...en8.de>, "Rafael J. Wysocki" <rjw@...k.pl>,
	Bjorn Helgaas <bhelgaas@...gle.com>, x86@...nel.org,
	lkml <linux-kernel@...r.kernel.org>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>
Subject: Re: Uhhuh. NMI received for unknown reason 2c on CPU 0.

On 01/31/2013 02:24 PM, Borislav Petkov wrote:
> On Thu, Jan 31, 2013 at 02:18:05PM +0100, Borislav Petkov wrote:
>>> And if I pass nmi_watchdog=0 to the image kernel, it should be gone I
>>> guess.
>>
>> How do you pass options the image kernel?
> 
> Yep, passing "nmi_watchdog=0" to the kernel (both when you boot and
> when you resume) fixes the issue - no more unknown NMIs. Did only 3 s/r
> cycles though.

FWIW the last time I saw the unhandled NMI was on 31st Jan. Since I
disabled NMI watchdog no more unhandled NMIs. I have to add that I don't
use ethernet at all.

-- 
js
suse labs
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