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Fri, 29 May 2020 19:32:44 +0000 Date: Fri, 29 May 2020 14:32:36 -0500 From: Yazen Ghannam To: Borislav Petkov Cc: Dmitry Antipov , "linux-kernel@vger.kernel.org" Subject: Re: 5.6.12 MCE on AMD EPYC 7502 Message-ID: <20200529193236.GA4005540@yaz-nikka.amd.com> References: <20200529115720.GF9011@zn.tnic> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200529115720.GF9011@zn.tnic> X-ClientProxiedBy: SN4PR0201CA0061.namprd02.prod.outlook.com (2603:10b6:803:20::23) To BN6PR12MB1218.namprd12.prod.outlook.com (2603:10b6:404:1b::7) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from yaz-nikka.amd.com (165.204.78.1) by SN4PR0201CA0061.namprd02.prod.outlook.com (2603:10b6:803:20::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3045.18 via Frontend Transport; Fri, 29 May 2020 19:32:43 +0000 X-Originating-IP: [165.204.78.1] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 69eb3d1d-3bc7-4b2d-b7c3-08d804070f5d X-MS-TrafficTypeDiagnostic: BN6PR12MB1635: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; 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Error Code: 2, Link Error. > > [138537.813281] [Hardware Error]: cache level: L3/GEN, mem/io: IO, mem-tx: GEN, part-proc: SRC (no timeout) > > > > Is it related to some (not so) known CPU errata? > > Who knows. > There aren't any reported errata related to this that I could find. > > Should I try to update microcode, motherboard firmware, kernel, or whatever else? > > Yeah, BIOS update might be a good idea, if there's a newer version for > your board. > I agree. The link settings are generally tuned for the platform. So the platform vendor may have a fix. Thanks, Yazen