Received: by 2002:a25:ab43:0:0:0:0:0 with SMTP id u61csp261474ybi; Wed, 29 May 2019 20:53:48 -0700 (PDT) X-Google-Smtp-Source: APXvYqyJAJFFjK/uxO8d6mnZ2Zlj/TRVAVMUdoqinWOJNAan6Llvy0TNN9RoJd59Ht4ZGeZ4neoz X-Received: by 2002:a62:ed0a:: with SMTP id u10mr1512255pfh.243.1559188428718; Wed, 29 May 2019 20:53:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1559188428; cv=none; d=google.com; s=arc-20160816; b=n3ck2remlZbSQ5UwjGESJKV4W34FZ7nfGJVRAv8FtH28EahvyGN7+BkK/D3+vSFrTy j79zrsb6VrL27njHuZdI0pbvXQ0Z2VM16aGBAnORT4S4o6UYcaENFCX6P8SjcZnsa1BM LU2TvYD/0Ry5LJJPF3eZ7OUVZn+/YAqtVpApVsXRc37k8k/doI0bVQxrAdkmlMIfMaSA 5csaVLyv0U8fxfr5zXL36w/LCRS/VAwyRBmDuKh5dX8yELkfy9g4NDkSi4WBPbSLzXQM eZmdrNfUQtSDbvocjGYN7qMJGWzGlWKJfSNmvsT6zxwF26hUSEzSXIgSfLLAkbJPDG9F hGaw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-language:accept-language:message-id:date:thread-index :thread-topic:subject:cc:to:from; bh=rgvGgv7bxsXyqejTBiLzQASYmxm9oSxWhI8uu4gFgVI=; b=z2hK433k15oPqaGstaSEjcBJCPH3tkLb096XiaIFJgPoZaSvV1+aIQDUpNzMDrF2GG iG6dizdSK0y3HU6t+A2GuTYEnM4VgY4d78DkLkI7vLoKZkrs3W/Gm8ehCS3iwwXclRoM CGgiUDFId8lJrhl60hf6WvK/iXcG6EZ7zCDTnkwA4QgCL0UI7pnq7oBSKknOeC1R8n9O GhKTgRUDkAZ18GPTiWOQWkE+ry5Y2MGM0yL2BgFDF4u92BvTwY9BuWS3Owu5bHf5g4cD 5PZBUURzRb5U8XvX08b2mHraEKNZszAfz61SLaxPlAWJg9EdO69KeSYJVp5hcSnIdgJO 538Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w191si2129767pfd.31.2019.05.29.20.53.32; Wed, 29 May 2019 20:53:48 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387415AbfE3Duu convert rfc822-to-8bit (ORCPT + 99 others); Wed, 29 May 2019 23:50:50 -0400 Received: from ZXSHCAS1.zhaoxin.com ([203.148.12.81]:10209 "EHLO ZXSHCAS1.zhaoxin.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728419AbfE3Dus (ORCPT ); Wed, 29 May 2019 23:50:48 -0400 Received: from zxbjmbx2.zhaoxin.com (10.29.252.164) by ZXSHCAS1.zhaoxin.com (10.28.252.161) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1261.35; Thu, 30 May 2019 11:50:39 +0800 Received: from zxbjmbx1.zhaoxin.com (10.29.252.163) by zxbjmbx2.zhaoxin.com (10.29.252.164) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1261.35; Thu, 30 May 2019 11:50:39 +0800 Received: from zxbjmbx1.zhaoxin.com ([fe80::b41a:737:a784:b70d]) by zxbjmbx1.zhaoxin.com ([fe80::b41a:737:a784:b70d%16]) with mapi id 15.01.1261.035; Thu, 30 May 2019 11:50:39 +0800 From: Tony W Wang-oc To: "tipbot@zytor.com" , "ashok.raj@intel.com" CC: "bp@suse.de" , "hpa@zytor.com" , "linux-edac@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-tip-commits@vger.kernel.org" , "mingo@kernel.org" , "peterz@infradead.org" , "stable@vger.kernel.org" , "tglx@linutronix.de" , "tony.luck@intel.com" , "torvalds@linux-foundation.org" , David Wang Subject: Re: [tip:x86/urgent] x86/mce: Ensure offline CPUs don' t participate in rendezvous process Thread-Topic: Re: [tip:x86/urgent] x86/mce: Ensure offline CPUs don' t participate in rendezvous process Thread-Index: AdUWlGl+Ivql5y3zT0ybuVHbqcI6gA== Date: Thu, 30 May 2019 03:50:39 +0000 Message-ID: <036f5f6f2d8a4a768309b61540857393@zhaoxin.com> Accept-Language: en-US, zh-CN Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.32.64.23] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Ashok, I have two questions about this patch, could you help to check: 1, for broadcast #MC exceptions, this patch seems require #MC exception errors set MCG_STATUS_RIPV = 1. But for Intel CPU, some #MC exception errors set MCG_STATUS_RIPV = 0 (like "Recoverable-not-continuable SRAR Type" Errors), for these errors the patch doesn't seem to work, is that okay? 2, for LMCE exceptions, this patch seems require #MC exception errors set MCG_STATUS_RIPV = 0 to make sure LMCE be handled normally even on offline CPU. For LMCE errors set MCG_STAUS_RIPV = 1, the patch prevents offline CPU handle these LMCE errors, is that okay? Thanks Tony W Wang-oc