Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756627AbZDVKTt (ORCPT ); Wed, 22 Apr 2009 06:19:49 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754423AbZDVKTj (ORCPT ); Wed, 22 Apr 2009 06:19:39 -0400 Received: from mx3.mail.elte.hu ([157.181.1.138]:32907 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753036AbZDVKTj (ORCPT ); Wed, 22 Apr 2009 06:19:39 -0400 Date: Wed, 22 Apr 2009 12:19:11 +0200 From: Ingo Molnar To: Robert Richter Cc: Huang Ying , "H. Peter Anvin" , Thomas Gleixner , Andi Kleen , linux-kernel@vger.kernel.org, Hidetoshi Seto Subject: Re: Re-implement MCE log ring buffer as per-CPU ring buffer Message-ID: <20090422101911.GB1115@elte.hu> References: <1240391484.6842.474.camel@yhuang-dev.sh.intel.com> <20090422092259.GC18226@elte.hu> <20090422101600.GL3226@erda.amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090422101600.GL3226@erda.amd.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 978 Lines: 27 * Robert Richter wrote: > On 22.04.09 11:22:59, Ingo Molnar wrote: > > > > * Huang Ying wrote: > > > > > Re-implement MCE log ring buffer as per-CPU ring buffer for better > > > scalability. Basic design is as follow: > > > > Before changing anything substantial in the MCE code it would be > > necessary to clean up and then unify the 32-bit and 64-bit side > > of the MCE code first. (Which essentially means extending the > > 64-bit-only code to 32-bit) > > You may also want to consider to use the in-kernel ring_buffer api > (include/linux/ring_buffer.h). Yeah. I'd have suggested that once cleanups and unification is done (which is still a long way out :-). Ingo -- 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/