From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CAFDBC0044C for ; Mon, 29 Oct 2018 10:45:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8BE702082D for ; Mon, 29 Oct 2018 10:45:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BE702082D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=profihost.ag Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729817AbeJ2TdP (ORCPT ); Mon, 29 Oct 2018 15:33:15 -0400 Received: from cloud1-vm154.de-nserver.de ([178.250.10.56]:46527 "EHLO cloud1-vm154.de-nserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729146AbeJ2TdO (ORCPT ); Mon, 29 Oct 2018 15:33:14 -0400 Received: (qmail 17991 invoked from network); 29 Oct 2018 11:45:05 +0100 X-Fcrdns: No Received: from phoffice.de-nserver.de (HELO [10.11.11.62]) (185.39.223.5) (smtp-auth username d.aberger@profihost.ag, mechanism plain) by cloud1-vm154.de-nserver.de (qpsmtpd/0.92) with (ECDHE-RSA-AES256-GCM-SHA384 encrypted) ESMTPSA; Mon, 29 Oct 2018 11:45:04 +0100 Reply-To: d.aberger@profihost.ag From: Daniel Aberger - Profihost AG Subject: MCE reports errors that can't be verified Organization: Profihost AG To: tony.luck@intel.com, bp@alien8.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org Cc: s.priebe@profihost.ag, n.fahldieck@profihost.ag, p.kramme@profihost.ag Message-ID: <6ccf5413-ce2a-bbb9-0203-b0cc9fe2e641@profihost.ag> Date: Mon, 29 Oct 2018 11:45:04 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: 8bit X-User-Auth: Auth by d.aberger@profihost.ag through 185.39.223.5 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, We currently have several servers reporting faulty memory through MCE. Example dmesg output: [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: Machine check events logged [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 12: Machine Check: 0 Bank 7: cc027c0000010091 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fc337d80 MISC 50202086 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME 1534938887 SOCKET 1 APIC 20 microcode 3d [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: Machine check events logged [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 14: Machine Check: 0 Bank 7: 8c00004000010091 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fb117d40 MISC 4268e886 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME 1534938887 SOCKET 1 APIC 24 microcode 3d [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: CPU 15: Machine Check: 0 Bank 7: cc00008000010091 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: TSC 0 ADDR 70fb1b3ec0 MISC 142189886 [Mi Aug 22 13:54:47 2018] mce: [Hardware Error]: PROCESSOR 0:306f2 TIME 1534938887 SOCKET 1 APIC 26 microcode 3d Normally we verify those errors by checking IPMIs event log, but no errors are showing there. Neither IPMI nor ras-mc-ctl report any errors. We encountered this problem running Kernel 4.12.0 based on openSUSE SLE15 on commit a906b62b3f80679eac4f38373492a871c5f3568e. Is this an MCE Kernel bug? -- Mit freundlichen Grüßen Daniel Aberger Ihr Profihost Team ------------------------------- Profihost AG Expo Plaza 1 30539 Hannover Deutschland Tel.: +49 (511) 5151 8181 | Fax.: +49 (511) 5151 8282 URL: http://www.profihost.com | E-Mail: info@profihost.com Sitz der Gesellschaft: Hannover, USt-IdNr. DE813460827 Registergericht: Amtsgericht Hannover, Register-Nr.: HRB 202350 Vorstand: Cristoph Bluhm, Sebastian Bluhm, Stefan Priebe Aufsichtsrat: Prof. Dr. iur. Winfried Huck (Vorsitzender)