Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753568AbZDVLbA (ORCPT ); Wed, 22 Apr 2009 07:31:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751612AbZDVLau (ORCPT ); Wed, 22 Apr 2009 07:30:50 -0400 Received: from mga10.intel.com ([192.55.52.92]:55417 "EHLO fmsmga102.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751511AbZDVLat (ORCPT ); Wed, 22 Apr 2009 07:30:49 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.40,230,1239001200"; d="scan'208";a="450262316" Message-ID: <49EEFFDE.3030105@linux.intel.com> Date: Wed, 22 Apr 2009 13:30:38 +0200 From: Andi Kleen User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: Robert Richter CC: Ingo Molnar , Huang Ying , "H. Peter Anvin" , Thomas Gleixner , linux-kernel@vger.kernel.org, Hidetoshi Seto Subject: Re: Re-implement MCE log ring buffer as per-CPU ring buffer References: <1240391484.6842.474.camel@yhuang-dev.sh.intel.com> <20090422092259.GC18226@elte.hu> <20090422101600.GL3226@erda.amd.com> In-Reply-To: <20090422101600.GL3226@erda.amd.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 571 Lines: 16 > You may also want to consider to use the in-kernel ring_buffer api > (include/linux/ring_buffer.h). Its semantics don't map very well to the machine check requirements. I did an analysis of that in http://thread.gmane.org/gmane.linux.kernel/772928/focus=773452 AFAIK the reasons stated there are all still valid. -Andi -- 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/