Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760445Ab0KRVCH (ORCPT ); Thu, 18 Nov 2010 16:02:07 -0500 Received: from mail-ew0-f46.google.com ([209.85.215.46]:36782 "EHLO mail-ew0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759479Ab0KRVCF (ORCPT ); Thu, 18 Nov 2010 16:02:05 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; b=bKTgI5fvIFcloggAkGY5+gEmoB8oP8Pbp9BnXDh4iK8JmYpgFxeMwbKqrgw14gpDcv YCPT7Ny0GTos/o8leZD8X6sb6IVMHZ1kj2fgiU3ceL8WVZuJjJ/cItxQmbW2/RJa5R7R 5P+Mrdhn5DiUFGRa4WSri69a/M/NzcmjQx5BU= Date: Fri, 19 Nov 2010 00:01:59 +0300 From: Cyrill Gorcunov To: Don Zickus Cc: Jason Wessel , Peter Zijlstra , Ingo Molnar , Robert Richter , ying.huang@intel.com, Andi Kleen , LKML , Frederic Weisbecker Subject: Re: [V2 PATCH 0/6] x86, NMI: give NMI handler a face-lift Message-ID: <20101118210159.GF6028@lenovo> References: <20101116184325.GB4823@redhat.com> <4CE2E3C3.6060800@windriver.com> <20101118080516.GJ32621@elte.hu> <4CE52048.5080802@windriver.com> <1290086232.2109.1507.camel@laptop> <20101118193247.GF18100@redhat.com> <4CE583D0.8050407@windriver.com> <20101118200807.GC8131@redhat.com> <20101118201118.GC6028@lenovo> <20101118205203.GA11445@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20101118205203.GA11445@redhat.com> User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 811 Lines: 24 On Thu, Nov 18, 2010 at 03:52:03PM -0500, Don Zickus wrote: ... > > > > ok, Don, but you mentioned there are false alarms on real P4 machine, right? > > Yeah, there are two problems. One is using kgdb tests on kvm guests. The > other is using kgdb tests on a bare metal p4 machine. > > Cheers, > Don > ok, thanks, Jason just confirmed it too. I thing if we run with kgdb armed it (kgdb) should obtain nmi handler first and perf only after. actually I'm not sure why p4 hangs here while core passes the test, most probably due to hardware reason. Cyrill -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/