Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754994Ab2FGQW5 (ORCPT ); Thu, 7 Jun 2012 12:22:57 -0400 Received: from mga14.intel.com ([143.182.124.37]:26866 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751176Ab2FGQW4 convert rfc822-to-8bit (ORCPT ); Thu, 7 Jun 2012 12:22:56 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="152994969" From: "Luck, Tony" To: Borislav Petkov , Chen Gong CC: Thomas Gleixner , LKML , "x86@kernel.org" , Peter Zijlstra Subject: RE: [patch 0/5] x86: mce: Bugfixes, cleanups and a new CMCI poll version Thread-Topic: [patch 0/5] x86: mce: Bugfixes, cleanups and a new CMCI poll version Thread-Index: AQHNRC7WkhFIdxHVtkmJOvUeOBJl15bvF+KAgAA5/4D//7iK4A== Date: Thu, 7 Jun 2012 16:22:53 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F19304893@ORSMSX104.amr.corp.intel.com> References: <20120606214941.104735929@linutronix.de> <4FD07D8F.5020303@linux.intel.com> <20120607133549.GH11153@aftab.osrc.amd.com> In-Reply-To: <20120607133549.GH11153@aftab.osrc.amd.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.22.254.140] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 739 Lines: 16 > Stupid question: do you even want to allow offlining of CPUs while the > storm is raging? IOW, wouldn't it be better to disallow hotplug when the > storm happens so that all online CPUs, which is all CPUs on the system, > can work out the storm conditions faster so that the system gets back to > normal faster... What if a processor is the source of the storm (we can get CMCI from corrected errors in the cache)? Then our action to abate the storm would be to take the cpu offline. -Tony -- 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/