From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757619Ab0ERSxj (ORCPT ); Tue, 18 May 2010 14:53:39 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:41496 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755540Ab0ERSxh (ORCPT ); Tue, 18 May 2010 14:53:37 -0400 Date: Tue, 18 May 2010 20:53:05 +0200 From: Ingo Molnar To: Joe Perches Cc: Mauro Carvalho Chehab , Hidetoshi Seto , Linux Kernel Mailing List , bluesmoke-devel@lists.sourceforge.net, Linux Edac Mailing List , Thomas Gleixner , Ingo Molnar , Ben Woodard , Matt Domsch , Doug Thompson , Borislav Petkov , Tony Luck , Brent Young Subject: Re: Hardware Error Kernel Mini-Summit Message-ID: <20100518185305.GA23921@elte.hu> References: <4BF18995.6070008@redhat.com> <4BF2392A.9040409@jp.fujitsu.com> <4BF2C3D1.10009@redhat.com> <1274204560.17703.82.camel@Joe-Laptop.home> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1274204560.17703.82.camel@Joe-Laptop.home> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0003] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Joe Perches wrote: > On Tue, 2010-05-18 at 13:44 -0300, Mauro Carvalho Chehab wrote: > > IMO, the first > > step is to provide an error core integrated to perf, and then start > > integrating the several error systems around it. > > Why integrated to perf? It makes sense to use the kernel's performance events logging framework when we are logging events about how the system performs. Furthermore it's NMI safe, offers structured logging, has various streaming, multiplexing and filtering capabilities that come handy for RAS purposes and more. The other option would be to use an ad-hoc logging implementation, only used for EDAC/RAS, which couldnt be mixed with other system events. That approach has various obvious disadvanteges so we are aiming for a unified approach. Thanks, Ingo