From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759530Ab3DDJ62 (ORCPT ); Thu, 4 Apr 2013 05:58:28 -0400 Received: from mail.skyhub.de ([78.46.96.112]:53709 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759383Ab3DDJ61 (ORCPT ); Thu, 4 Apr 2013 05:58:27 -0400 Date: Thu, 4 Apr 2013 11:58:23 +0200 From: Borislav Petkov To: Jiri Slaby Cc: "Rafael J. Wysocki" , Bjorn Helgaas , x86@kernel.org, lkml , Konstantin Khlebnikov Subject: Re: Uhhuh. NMI received for unknown reason 2c on CPU 0. Message-ID: <20130404095823.GC32271@pd.tnic> Mail-Followup-To: Borislav Petkov , Jiri Slaby , "Rafael J. Wysocki" , Bjorn Helgaas , x86@kernel.org, lkml , Konstantin Khlebnikov References: <5109B11C.2010400@suse.cz> <5170962.qHnbnlVDfx@vostro.rjw.lan> <20130131070926.GC4926@pd.tnic> <510A2B1C.1060108@suse.cz> <20130131131805.GG4926@pd.tnic> <20130131132400.GH4926@pd.tnic> <5130A55E.8030508@suse.cz> <515D2C79.7040904@suse.cz> <20130404093302.GB32271@pd.tnic> <515D4A0D.7070302@suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <515D4A0D.7070302@suse.cz> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Apr 04, 2013 at 11:38:21AM +0200, Jiri Slaby wrote: > Oh, this reminds me that this time it might be unrelated to > yesterday's use of ethernet. Because today, I resumed the system by a > kernel which I didn't pass nmi_watchdog=0 to. > > Hmm. So you can silently ignore the report I sent today :). > > And sure, the way you describe above "works" for me to trigger the > issue... I just wanted to note the ethernet may interfere. > > Anyway, I will bake some hack to disable NMI before jumping to the > resumed kernel and will see what happens... Yeah, Rafael said something about the resume kernel not getting the disabling of the watchdog in time or so... The issue looks like a last forgotten NMI which fires although we've disabled the watchdog already. The certainly aren't any other coming up after this last one. Hmm. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --