Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753191Ab0HZJSe (ORCPT ); Thu, 26 Aug 2010 05:18:34 -0400 Received: from mail-vw0-f46.google.com ([209.85.212.46]:58221 "EHLO mail-vw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751715Ab0HZJSb (ORCPT ); Thu, 26 Aug 2010 05:18:31 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=VeHfEL8+O+UFzIZh1AQLD+3AsnMXA6H//J/ppGJHif/Ruf3CFa6JESQijFtd9fiU/c BNLhLq8Ws9hRZFUIMiJNRepsjGxt13QjB4XRiK8uVDrk+UMrk+V1JzmAs21WiIRLXjnn y/IRloLA2aIsSqBA/AQ61dZXhhHSlbciObOF0= MIME-Version: 1.0 In-Reply-To: <20100826090008.GA22783@erda.amd.com> References: <9g472epksbkxhgmw6a3qh8r5.1282316687153@email.android.com> <20100820152510.GA4167@elte.hu> <20100825094819.GB3198@erda.amd.com> <20100825104130.GA27891@elte.hu> <20100825110006.GB27891@elte.hu> <20100825201106.GH4879@redhat.com> <20100826090008.GA22783@erda.amd.com> Date: Thu, 26 Aug 2010 13:18:29 +0400 Message-ID: Subject: Re: [PATCH -v3] perf, x86: try to handle unknown nmis with running perfctrs From: Cyrill Gorcunov To: Robert Richter Cc: Don Zickus , Ingo Molnar , Peter Zijlstra , Lin Ming , "fweisbec@gmail.com" , "linux-kernel@vger.kernel.org" , "Huang, Ying" , Yinghai Lu , Andi Kleen Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 681 Lines: 20 On Thu, Aug 26, 2010 at 1:00 PM, Robert Richter wrote: ... > > This could also be a race in the counter handling code, or we do not > proper count the number of handled counters. Maybe 2 counters actually > fired but we only noticed one counter and then accidentially cleared > the 2nd without processing it. > > -Robert > Any chance to get it tested on P4 machine since it has a bit different design? 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/