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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN1PEPF00004684.mail.protection.outlook.com (10.167.243.90) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7249.19 via Frontend Transport; Wed, 7 Feb 2024 22:56:39 +0000 Received: from titanite-d354host.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Wed, 7 Feb 2024 16:56:38 -0600 From: Avadhut Naik To: , CC: , , , , Subject: [PATCH 0/2] Extend size of the MCE Records pool Date: Wed, 7 Feb 2024 16:56:30 -0600 Message-ID: <20240207225632.159276-1-avadhut.naik@amd.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN1PEPF00004684:EE_|PH0PR12MB7863:EE_ X-MS-Office365-Filtering-Correlation-Id: 6495a2ff-f651-4763-9287-08dc28300bd1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Feb 2024 22:56:39.9405 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 6495a2ff-f651-4763-9287-08dc28300bd1 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00004684.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH0PR12MB7863 This patchset extends size of the existing MCE records pool to ensure that MCE records are not dropped, particularly on systems with higher CPU count. This is a followup of the below discussion: https://lore.kernel.org/linux-edac/20231011163320.79732-1-sironi@amazon.de/ The fist patch extends the size of MCE Records pool in accordance to the CPU count of the system. The second patch adds a new command line parameter to extend the size of MCE Records pool by a predetermined number of pages. Avadhut Naik (2): x86/MCE: Extend size of the MCE Records pool x86/MCE: Add command line option to extend MCE Records pool .../admin-guide/kernel-parameters.txt | 2 + arch/x86/kernel/cpu/mce/core.c | 3 ++ arch/x86/kernel/cpu/mce/genpool.c | 38 +++++++++++++++++++ arch/x86/kernel/cpu/mce/internal.h | 1 + 4 files changed, 44 insertions(+) base-commit: 93e1e1fe2f97859cb079078b6b750542ebbfdea8 -- 2.34.1