From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752760Ab1HOIh2 (ORCPT ); Mon, 15 Aug 2011 04:37:28 -0400 Received: from mail-pz0-f42.google.com ([209.85.210.42]:50414 "EHLO mail-pz0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751469Ab1HOIhZ convert rfc822-to-8bit (ORCPT ); Mon, 15 Aug 2011 04:37:25 -0400 MIME-Version: 1.0 In-Reply-To: <1312196702.2617.445.camel@laptop> References: <20110731110641.GG2209@sun> <20110731153225.GJ2209@sun> <1312196702.2617.445.camel@laptop> Date: Mon, 15 Aug 2011 10:37:24 +0200 Message-ID: Subject: Re: v3.0: Weird kernel log message when resuming avout NMI received From: Francis Moreau To: Peter Zijlstra Cc: Cyrill Gorcunov , LKML , Don Zickus , Stephane Eranian , Ingo Molnar Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Peter, Sorry for the loooonnng delay but summer rest :) On Mon, Aug 1, 2011 at 1:05 PM, Peter Zijlstra wrote: > On Sun, 2011-07-31 at 19:32 +0400, Cyrill Gorcunov wrote: > >> > >> I'm seeing those kernel message when resuming: >> > >> >> > >> [  524.973283] Uhhuh. NMI received for unknown reason 3d on CPU 0. >> > >> [  524.973288] Do you have a strange power saving mode enabled? >> > >> [  524.973289] Dazed and confused, but trying to continue >> > >> >> > >> I don't know if it's important or not because the system seems to work >> > >> after but maybe it worths to report > > So I guess the problem is the NMI watchdog and suspend stuff not > shutting things down properly.. > > Argh, the PM notifier muck runs before the hotplug notifiers and it > doesn't avoid hotplug races on its own.. what crap. > > something like the below perhaps, compile tested only.. does it work? Thanks for the fix, I'm going to give it a test and report in 2 days. -- Francis