From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756123AbbLGWIE (ORCPT ); Mon, 7 Dec 2015 17:08:04 -0500 Received: from mga03.intel.com ([134.134.136.65]:11628 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755877AbbLGWIB (ORCPT ); Mon, 7 Dec 2015 17:08:01 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,396,1444719600"; d="scan'208";a="702086807" From: "Luck, Tony" To: Borislav Petkov CC: "Raj, Ashok" , "linux-kernel@vger.kernel.org" , "linux-edac@vger.kernel.org" Subject: RE: [Patch V2] x86, mce: Ensure offline CPU's don't participate in mce rendezvous process. Thread-Topic: [Patch V2] x86, mce: Ensure offline CPU's don't participate in mce rendezvous process. Thread-Index: AQHRLuujvHeocrJoDE+SCXAFkO36pp7AfBCA//96brCAAIsHgP//ltRg Date: Mon, 7 Dec 2015 22:07:59 +0000 Message-ID: <3908561D78D1C84285E8C5FCA982C28F39F7C3A4@ORSMSX114.amr.corp.intel.com> References: <20151205002930.GA24005@otc-brkl-03.jf.intel.com> <20151207200019.GH22248@pd.tnic> <3908561D78D1C84285E8C5FCA982C28F39F7C24B@ORSMSX114.amr.corp.intel.com> <20151207201951.GI22248@pd.tnic> In-Reply-To: <20151207201951.GI22248@pd.tnic> 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="utf-8" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id tB7M89lO012116 > And that is incorrect too, because the MCE (at least the one I'm > injecting) gets broadcasted to the CPUs on the *node* and not to the > whole system. Which system? What kind of machine check? On Intel we expect machine checks to be broadcast to all logical cpus on all nodes (unless local machine check is enabled, in which case SRAR style machine checks go only to the logical cpu that hit the error). The code is written to that expectation ... and we don't report things as well if something else happens (like too many or too few cpus showing up). -Tony {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I