From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932622Ab0JLOPs (ORCPT ); Tue, 12 Oct 2010 10:15:48 -0400 Received: from canuck.infradead.org ([134.117.69.58]:46497 "EHLO canuck.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932516Ab0JLOPr convert rfc822-to-8bit (ORCPT ); Tue, 12 Oct 2010 10:15:47 -0400 Subject: Re: [PATCH -v3 3/6] x86, NMI, Rewrite NMI handler From: Peter Zijlstra To: Andi Kleen Cc: Huang Ying , Don Zickus , Ingo Molnar , "H. Peter Anvin" , "linux-kernel@vger.kernel.org" , Robert Richter In-Reply-To: <20101012135112.GE20436@basil.fritz.box> References: <1286606987-19879-3-git-send-email-ying.huang@intel.com> <1286813635.2336.617.camel@twins> <1286844650.7768.137.camel@yhuang-dev> <1286863479.2336.1451.camel@twins> <1286864080.7768.179.camel@yhuang-dev> <1286865071.2336.1478.camel@twins> <1286865447.7768.184.camel@yhuang-dev> <1286865629.2336.1490.camel@twins> <1286865923.7768.188.camel@yhuang-dev> <1286866193.2336.1503.camel@twins> <20101012135112.GE20436@basil.fritz.box> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Tue, 12 Oct 2010 16:15:27 +0200 Message-ID: <1286892927.29097.42.camel@twins> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2010-10-12 at 15:51 +0200, Andi Kleen wrote: > > No, its not making sense, there's only one event source - the NMI, it > > doesn't make any sense what so ever to then artificially split it in > > two. > > I can see that "unknown NMI" is a different kind of event than > "NMI event triggered" > > e.g. the debugger would only hook into "unknown NMI" Sure, I'm not arguing about DIE_NMI vs DIE_NMI_UNKNOWN. I simply don't see the point of DIE_NMI_IPI.