Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932971AbdCGQNe (ORCPT ); Tue, 7 Mar 2017 11:13:34 -0500 Received: from mail-sn1nam01on0135.outbound.protection.outlook.com ([104.47.32.135]:46258 "EHLO NAM01-SN1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755633AbdCGQNP (ORCPT ); Tue, 7 Mar 2017 11:13:15 -0500 Authentication-Results: hpe.com; dkim=none (message not signed) header.d=none;hpe.com; dmarc=none action=none header.from=hpe.com; Subject: Re: [PATCH 1/2] x86/platform: Add a low priority low frequency NMI call chain To: Don Zickus References: <20170306181737.059578494@asylum.americas.sgi.com> <20170306181737.322206440@asylum.americas.sgi.com> <20170307074210.GA24782@gmail.com> <20170307152206.4nqqrekwmfqbdn7b@redhat.com> <20170307160748.z4dl7wdqusiybjda@redhat.com> CC: Ingo Molnar , Ingo Molnar , Thomas Gleixner , "H. Peter Anvin" , Peter Zijlstra , Dimitri Sivanich , Frank Ramsay , Russ Anderson , Tony Ernst , , From: Mike Travis Message-ID: Date: Tue, 7 Mar 2017 08:13:02 -0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: <20170307160748.z4dl7wdqusiybjda@redhat.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [73.222.225.80] X-ClientProxiedBy: DM5PR05CA0013.namprd05.prod.outlook.com (10.173.226.23) To TU4PR84MB0237.NAMPRD84.PROD.OUTLOOK.COM (10.162.187.27) X-MS-Office365-Filtering-Correlation-Id: 9069a71b-f702-4678-ef6b-08d46574d8c5 X-MS-Office365-Filtering-HT: Tenant X-Microsoft-Antispam: UriScan:;BCL:0;PCL:0;RULEID:(22001)(48565401081);SRVR:TU4PR84MB0237; X-Microsoft-Exchange-Diagnostics: 1;TU4PR84MB0237;3:HnR6BeX8nuLN6LnYZZt7m/JnC+G7fQuPf4dfGkIUXHTvFg3y1clyW3K8RLBD6H7XVnQ7N7rEoDWx56av4BrjW1umLQLLFHh6t73sTv4XLSPhPGjZ+qMEnyTd1Dim4qmNQxkjYz6ZMDRzDpQ+xZqx/vb+lrUV5rCoT7HkeIMXUQJIFRDC2zX+m3CKUF+DZWPkNOLxptefsgEaynvTN6ANMqE94czic7/JCygm4Rtf9RY3BDa5JW6R2BOr7h19YY3G4/tUCg/k0G3vv+AZZnNGL9/mFnBJ78hp0TJCmb6/jlo=;25:Gejroq9neHQqAd2ocKWCGuW0P3BlLCjZwzhXtjnaHIcmnChWd3Hu85+R3YxguoEH/CiNsYk2Zh+HrVqGr+x/qLHzdrlKEMxxhse/a4dOOinCY9/05Uo0bMKl4i8m0stjJsbw93gkWy5Op9OZZKt1+9C2+Ihs/3E1tSd4Wtw5rU7t1597cg/DdyOesRNL/TgqGhqrL+dNKgLjdlgAuWMrNYIOA5/fUVHmejYTVSKsrP/eO+QCHhM4pgvjRf547aBmP5YzyyhRnoSvyPs/iLIJDS1h7/Pl6aULsOyYq289wlf5AD+PxjZ/mvEEdb06hGhe1t3Ty+MbS4CYIfR1gID5O31Wnn/lpCoXzhvOG/i4PrO4C+evkpcfReTFEDucTxdlv9RJgfdcE8/irjW+RxCQgFzaDcOtTKp1rzcqA9iqUoL9wASqCFFQ/YxI1JzCBg0CPI/ntx1qO7+j4RcLXARn7w== X-Microsoft-Exchange-Diagnostics: 1;TU4PR84MB0237;31:FSNvFGcmIIbxeCi20LwzyheEcorOdShnfObF1xeZgl5m8AQiFBHofCTiQCbb/YRdbQbj9cn6fJ8/s8Sxw7sgdBR5tjy8Iw16/s+uJ0ZiUG+K2lav5pEK9lgks/aCSEmLUl5eIgC2JzNbsElpKKk37ZZLJ/2IBNMLCFdNEqLd168jnQ9EUHMw278MOJ4EXHa8o/GW00nNMWj8pslQRBBUV0y1SdFBAS7jSuJU+z5Mkj4=;20: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 X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:; 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I keep thinking of the hpwdt that wants to eat all NMIs, I > believe that still registers on the unknown nmi (drivers/watchdog/hpwdt.c). Thanks for pointing that out. I'm guessing this happens only on HPE systems, which are now us... :) I'll contact Thomas for more info.