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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id B447DC433FE for ; Wed, 9 Nov 2022 05:05:57 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 154106B0072; Wed, 9 Nov 2022 00:05:57 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 12C088E0002; Wed, 9 Nov 2022 00:05:57 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id EE4EE8E0001; Wed, 9 Nov 2022 00:05:56 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id DCC076B0072 for ; Wed, 9 Nov 2022 00:05:56 -0500 (EST) Received: from smtpin10.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id AA1A616115E for ; Wed, 9 Nov 2022 05:05:56 +0000 (UTC) X-FDA: 80112716712.10.3CFE26A Received: from JPN01-OS0-obe.outbound.protection.outlook.com (mail-os0jpn01on2050.outbound.protection.outlook.com [40.107.113.50]) by imf30.hostedemail.com (Postfix) with ESMTP id A774E8000A for ; Wed, 9 Nov 2022 05:05:49 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UMkQbSJobCER/cL2ORDIaIj730BlkGnd6HBFPGBVIMcMI8XNoq5qF6Ea0CRl6dw/ejlH60c+uKSqeaEbceEGBzSWFx9ck6YX1NaaA1dc66VTNNlnEYq2E/0hFvjSNP8WFqJ/AeIHcGeEtHo4BGJ1UvPyLijiOlxe7Axvuf7Qx2JiI68cN0uKJais+R+8zfSJIkh9SJJt27/NTshw/S5jwFJNg1F6BF6r8KCj7+yYc9ykBfj0A+cOw7dZM0SC9AqjfZG2eGyqbpLTlMKA3AGEfzD1sbzQIWaNKqJ7bnuUSIYw2nGlWBJxeWdc9gVznK30IUQbabuuYVkFkkkhHHuNnw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=LE18QSY5uqD4iaaeE56J1niqjfRyGl+WquGkWHpNnN4=; b=WejyzFrIVD9UdHY0YDd1ufqn170a4JGfz+KVAvfntBiOs3d1aZtx7GcMMM1xatI2yoHOckRjV/CjpXsTFbuDVuiYdEowdiuksuACPxfgN8LH+G0UT3L4b7h4H89S5KYMY3WNKFg67nxn9S/R0J/B2wRDT4NWkXjFrA0O75rCU1z2rmzjgC1EZ0oPHwXobFdzKi7AQy8GuS6HCLjDYAmPYlWhzvcTyhYJSbgoXNxz8waz2/BergCore5AoeoG1GRGqT0eNXEjDVAZw92LqWT82on3F+RXW/SJxqD8yiQvhCoPBZUQrcsd9qfSyRJhD41N/wRj8zt7gQiNS46ROzbPUw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nec.com; dmarc=pass action=none header.from=nec.com; dkim=pass header.d=nec.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nec.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LE18QSY5uqD4iaaeE56J1niqjfRyGl+WquGkWHpNnN4=; b=ZdP/smVOO/7B3TYAcbS/MtwIl1MC1JqN6BS6gnqWpTbWNHIkLqOCE2tV1yZlJf6H5b+jIfSKumdJdRDcSmiXByMwLXQWZmehGLnuUDPUDSP3rJ10e7ar87LzC214Uwu/91u+ighB8E5ZVHgKeVVU9i5vPnJC+oJE1ztRVEcPqlw= Received: from TYWPR01MB8591.jpnprd01.prod.outlook.com (2603:1096:400:13c::10) by OS3PR01MB9721.jpnprd01.prod.outlook.com (2603:1096:604:1e8::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5791.27; Wed, 9 Nov 2022 05:04:42 +0000 Received: from TYWPR01MB8591.jpnprd01.prod.outlook.com ([fe80::9f34:8082:cd2f:589c]) by TYWPR01MB8591.jpnprd01.prod.outlook.com ([fe80::9f34:8082:cd2f:589c%9]) with mapi id 15.20.5791.027; Wed, 9 Nov 2022 05:04:42 +0000 From: =?utf-8?B?SE9SSUdVQ0hJIE5BT1lBKOWggOWPo+OAgOebtOS5nyk=?= To: "Luck, Tony" CC: Jiaqi Yan , Nadav Amit , "dave.hansen@linux.intel.com" , David Hildenbrand , "Aktas, Erdem" , "pgonda@google.com" , "rientjes@google.com" , "Hsiao, Duen-wen" , "Vilas.Sridharan@amd.com" , "Malvestuto, Mike" , "gthelen@google.com" , "linux-mm@kvack.org" , "jthoughton@google.com" Subject: Re: [RFC] Kernel Support of Memory Error Detection. Thread-Topic: [RFC] Kernel Support of Memory Error Detection. Thread-Index: AQHY75xi2gotv3xeiEWGPGjQ44FwC64tYwAAgAADvACABuxiAIAA6L8AgADWY4A= Date: Wed, 9 Nov 2022 05:04:41 +0000 Message-ID: <20221109050425.GA527418@hori.linux.bs1.fc.nec.co.jp> References: <20221103155029.2451105-1-jiaqiyan@google.com> <7E670362-C29E-4626-B546-26530D54F937@gmail.com> In-Reply-To: Accept-Language: ja-JP, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-publictraffictype: Email x-ms-traffictypediagnostic: TYWPR01MB8591:EE_|OS3PR01MB9721:EE_ x-ms-office365-filtering-correlation-id: 5fadd3c3-802f-4aa6-eba4-08dac20fe947 x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: hh/yVGUMKwYgteS1nk4UmNA5EMdSmGUPQWVAkHXlnLeyQYQjJrqljBWpnUGbu3fd0QRdL2x9yBBoYoETXvVRDwD5EHk+jF+hF+470+t9BM2mybDfZ5dkqV713iNF6WUtMwAU03eHPRaKeB5JUWn18oiFdv4/1w4qKYvEQitbXFdpjuU+A9LMzD1qv1ei+u2mNWEnfnBSQ2e3BcixkHNNAWRZLWjuwj3Jq/AD0nHRel6lbxirIf/z0gWSMZ0B8N8k004MaUTXRJXKDgdRFcyLA1RGnTfxJwPDsCaFkDPVANE0wSbtK5fR96+XKoq97I6FhNcNrm9pKW02cVB7RX6lSk90W7Z4WQg73NHzi1fQef0ng/ffad7kA4ifUn8RRm2GBeA/W9BxBPcRxg5PE61ueNJulhl4kwbJoQtjtrFXEU7F8/UwNs2N3/MJm3zS9dRefU3yHqZ89iV1bFqJYiit/OJNjNk+6Cj5TzJXE+Va3aHJ7ba39MqhGvQzmd1jnsdzjINJmjVHMn1oTL60hiCGqAsKRHnDqEjsoZA1aNjVFrpu6bRmbe230LYrQ2nGcxTqd1nlYkKszE8kL7KC0Bf4gQe28SY1soZ0tlI1YHm3cekR+/8toHqDTmwZ15IKY8Q7NYIM0WZX/F0N4r4JyZhilzW9lgM8rE7DoQej949kPj9ErF0jed4hOWkniw68Spugn3L0wVcg3YQvw9/F51Z2YXeVAwZt06dyftrHYbLT6pnvZu82mFA31W7R4yPVsDyd9Qd8uxPfDVFNwsEkOGiC9/olxklHPNC/O7ydsfauMPg= x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:TYWPR01MB8591.jpnprd01.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230022)(4636009)(366004)(136003)(396003)(39860400002)(376002)(346002)(451199015)(71200400001)(2906002)(966005)(86362001)(55236004)(478600001)(6486002)(82960400001)(38070700005)(38100700002)(85182001)(33656002)(122000001)(186003)(1076003)(26005)(6512007)(6916009)(83380400001)(9686003)(66946007)(64756008)(4326008)(66556008)(54906003)(316002)(76116006)(8676002)(66446008)(66476007)(41300700001)(6506007)(7416002)(8936002)(5660300002);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?QXRMYWpoeGZONkR3WDJ1QjBtaWhhKzhHbWV4U3VVZVJsSnIwRk8xNFozbkFF?= =?utf-8?B?cTY2L1pTK3NFNS9POUt4Y3NBb25VVzJHYXZFTUJvSGxrTEN3L1lPd24zY1h4?= =?utf-8?B?cXF4cVIyQUJRbDVnYWFWakxFa1FXSXJYR2FtNDJhcnh3M0tTQTljaDZpTDA4?= =?utf-8?B?ajVLNTZ0bVF6ZUFwTVVxYmZtWFRJck5HcE85eDQ3eDVqUUFQbXhGZ3JFU3g4?= =?utf-8?B?K0crelVoekd0dHBZbi9JY0x4WFI1Z1d6RHFZWVhBYVJyVGwxOGp0S3VDeDk4?= =?utf-8?B?VFA5Qjk5V3dBTUJVNEVXOGI1WEtZRUEvaXlwZWV6Z0s3WTIzcXF4RjVJSGFj?= =?utf-8?B?NDFzM0hENnJaMXB3MFp1bzRrSDVXZzdLRExWWktsTGFFSVFWbW9MeStybWFW?= =?utf-8?B?TWMvUDhXc1Z5S2czUDFYQ3RZa21kaGZuaTliNjR4WGd6MldsTUFwZzF6QzF2?= =?utf-8?B?NThlaEtOL1pqNnh5ZXFpYUVXWnl1R0JNR3p0Vzl5aGlTV0lCNUs5UEhLUS9U?= =?utf-8?B?M0dPZk84MWNtSE9IL1BpbHdvNFducmx5VDltcU16ZlJpTzlNWTR3eUVZczFr?= =?utf-8?B?SnM4NElTWGUyUkw0Q3hxenNCL1pyNnArSmc0bG50RURrK1VzWTRiZk8xbElQ?= =?utf-8?B?SXo3QllPN2NxVEVQbTkrcHg3T2wwbklkcURyZStXbHhyUERJck1mTUppZHlK?= =?utf-8?B?NzAwVGUyd2pQYXJqdjZXbkkyRXl6Z091dU10SlZsbE5oQXpJNXBxeVpuV0VI?= =?utf-8?B?aHlsQlBScXU3ak5nbDBtTXhVTUN3MlpURUw2SHFzbTBWOGRRZkwvUjVSVjFx?= =?utf-8?B?bkJTeGpIUzhGOTh4U3o4VGdRdGRiWHlnY3lXbEJOMVVUNkdtYjd6OUdNQTF3?= =?utf-8?B?ZUZ1bll0dFlvQ1FZQVJVRERMMXAvSm94Ny9wTzdydkZDWEtMc2F5WkNXSFIx?= =?utf-8?B?alNZUjBRbjVCLzdGQUJVeTE4T3lUUDM5K1hjTGtsK1J5ZWdtME81a3RJN3lK?= =?utf-8?B?TTc4WGxCNzJ4Q0VTWTV1RUJFSEtVZ0lCT1AwcVp1Y2tiM2VvRXhXMzRwOG5J?= =?utf-8?B?QjNoU2VqK2Z2Sjl5TDdyUXZwckR2cEQ5bGdDZVQ2WFRKUnRoRElkV3E4OG5a?= =?utf-8?B?Q081VFlUanNCYWVwbDhMSGNsOEkvS1VmVjdDMVBrQVF2MEM4TElCOXVwT2VJ?= =?utf-8?B?UE1XZWZJekp3WCs1cXFSRWxaTExLK01xc09qWHdjUVhsQ1JTcElOUCtxbmdI?= =?utf-8?B?QUFQVkF0a2ZraWtmMXJyYzdPYkw5UW9CZ1BVYWQ3cHc5N1lyMjdCaitBVmh4?= =?utf-8?B?TkNzWmt0Z3VXSjA0RWFNSnZjamlmTWxnQmVDbmxROHpiWkM0UUVMaENpTE1t?= =?utf-8?B?VTlqa2V5ZGdDTFlGOG1Zb1NiVDRCT3FwajFXTVRCUURnRmxHTFFRVnd2bVR2?= =?utf-8?B?aTBheWwwenRPaTJCb1h2TGFVYmVpRlBmYStxenpGNktiNm56U29ZZHk1eVE0?= =?utf-8?B?UkQzcXhtMlI1dnY5bVhQcUsrZHRadkQyTEFyeFBTSGxUZ1JwZkhiT3FnMFhn?= =?utf-8?B?M0NCUGJSZWUxWFdWUUdBeGxEeWtyMVZwUjZpOC83VW1Jek01N3JRaXQrd3NL?= =?utf-8?B?UGFtYkxJWjFXbHZSR0hmRzlkc3Rqc0R2Y3VLMTdhaEJpV09Qc1VJZGZETVpD?= =?utf-8?B?Z3NnREg5Z2xYSk9PR1kzUDg3NnhzQzlGTTFMVHhZVmxYaUhPMVM5UHgvVDgw?= =?utf-8?B?cDZiWUlwcUc1cXltZm8xSVdFODhiOFlGVndzV0VHc2lLU09pL1FnT0YzMHFj?= =?utf-8?B?N2o1RW9OMEk4cVpyaE05NzVaVDNDOXlDOTh5NE5oOXd6M1F2c2wyRUJUSXQr?= =?utf-8?B?czVHWHZvRGtjb1BqWWNnZGJyK1J2R05uL3JNbmxvNmtnK3BUOEs1N2hlMlhn?= =?utf-8?B?Q003Y0VLblBYa0YxL2RTcUgycmFNeWpTQjVSTHVWNVBoN0VqQXBwQ3YvVUhI?= =?utf-8?B?dHNLQUZUUmkwWGJMUENaZFBHUUNlazlydUtPME1qT1RCL0k5TXdRV0lWUmRw?= =?utf-8?B?ang5aW9TQitDdFVtNm1jL0V5QTgwTEVHYzhDOVdVeWdRbGVWU2dWZUtZcllI?= =?utf-8?B?T3N2YTVldVcrSVRkZDBrZE40cmk1eVYvNHlKcDV2MjMxZmxyWCtlaHp3dHV4?= =?utf-8?B?MkE9PQ==?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: nec.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TYWPR01MB8591.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5fadd3c3-802f-4aa6-eba4-08dac20fe947 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Nov 2022 05:04:41.9824 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: e67df547-9d0d-4f4d-9161-51c6ed1f7d11 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: HPTBTOajh2VLk+sDIj5KmepEMF/n7cVboe+6irWCNTBJHb6vGcuM4yzGk5eDzb7rRhwfPkXlTj7SqY0AUspICg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: OS3PR01MB9721 ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1667970353; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=LE18QSY5uqD4iaaeE56J1niqjfRyGl+WquGkWHpNnN4=; b=z9UIi55EeRqVPHggZbKL1LS9nHXDJ3aMcjDbseBDSgYCBQD1uixwM6mrvJBbi+PmdbIGJP xLNhKGkacRmNFsx0NGGNjRwdXomp13P3Q0EYpd3JrfTuQwL5cxdgGYrDP5RfJWIwd/zqFo aXkx1H8ZSg/+VMEjhUbUyvl8qUFQ+lI= ARC-Authentication-Results: i=2; imf30.hostedemail.com; dkim=pass header.d=nec.com header.s=selector1 header.b="ZdP/smVO"; arc=pass ("microsoft.com:s=arcselector9901:i=1"); spf=pass (imf30.hostedemail.com: domain of naoya.horiguchi@nec.com designates 40.107.113.50 as permitted sender) smtp.mailfrom=naoya.horiguchi@nec.com; dmarc=pass (policy=none) header.from=nec.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1667970353; a=rsa-sha256; cv=pass; b=EWDwtEK2WYM1Cng4UajT6VGnmCN4laUd/UkDz/0Qc29bKQ4HPQDXzEcL94Y8fmMnhn6hYQ aDxLkn30K9y29PrbJX3aaINW02pQoV0ythHbxaSy4Ei142ArjaPlvNRudqrm8e4VAvCaGu sbJ6pHLLZb/zCA0ur7N16Et+tOZizeQ= X-Rspamd-Queue-Id: A774E8000A Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=nec.com header.s=selector1 header.b="ZdP/smVO"; arc=pass ("microsoft.com:s=arcselector9901:i=1"); spf=pass (imf30.hostedemail.com: domain of naoya.horiguchi@nec.com designates 40.107.113.50 as permitted sender) smtp.mailfrom=naoya.horiguchi@nec.com; dmarc=pass (policy=none) header.from=nec.com X-Rspamd-Server: rspam10 X-Rspam-User: X-Stat-Signature: c5uzffb8c8oz5hrym87ca9m7tnqf8cis X-HE-Tag: 1667970349-954221 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000036, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: T24gVHVlLCBOb3YgMDgsIDIwMjIgYXQgMDQ6MTc6MDZQTSArMDAwMCwgTHVjaywgVG9ueSB3cm90 ZToNCj4gPiBJZiBpdCBpcyBmZWFzaWJsZSBpbiBmdXR1cmUgdGhhdCBoYXJkd2FyZSB2ZW5kb3Jz IGNhbiBtYWtlIHBhdHJvbA0KPiA+IHNjcnViYmVyIHByb2dyYW1tYWJsZSwgd2UgY2FuIGV2ZW4g ZGlyZWN0IHRoZSBzY2FubmluZyB0byBwYXRyb2wNCj4gPiBzY3J1YmJlci4NCj4gDQo+IFRoZXJl IHdhcyBhbiBhdHRlbXB0IHRvIGNyZWF0ZSBhbiBBQ1BJIGludGVyZmFjZSBmb3IgdGhpcy4gSSBk b24ndCBrbm93IGlmIGl0IG1hZGUNCj4gaXQgaW50byB0aGUgc3RhbmRhcmQuDQoNCkkgYnJpZWZs eSBjaGVja2VkIHRoZSBsYXRlc3QgQUNQSSBzcGVjLCBhbmQgaXQgc2VlbXMgdGhhdCBzb21lIGlu dGVyZmFjZXMNCnRvIGNvbnRyb2wgKGgvdyBiYXNlZCkgcGF0cm9sIHNjcnViYmluZyBhcmUgZGVm aW5lZC4NCg0KaHR0cHM6Ly91ZWZpLm9yZy9zcGVjcy9BQ1BJLzYuNS8wNV9BQ1BJX1NvZnR3YXJl X1Byb2dyYW1taW5nX01vZGVsLmh0bWwjYWNwaS1yYXMtZmVhdHVyZS10YWJsZS1yYXNmDQoNCj4g SSBkaWRuJ3QgZG8gYW55dGhpbmcgd2l0aCBpdCBmb3IgTGludXggYmVjYXVzZSB0aGUgaW50ZXJm YWNlIHdhcw0KPiBxdWl0ZSBjb21wbGV4Lg0KPiANCj4gRnJvbSBhIGgvdyBwZXJzcGVjdGl2ZSBp dCBtaWdodCBhbHdheXMgYmUgY29tcGxleC4gQ29uc2VjdXRpdmUgc3lzdGVtIHBoeXNpY2FsDQo+ IGFkZHJlc3NlcyBhcmUgZ2VuZXJhbGx5IGludGVybGVhdmVkIGFjcm9zcyBtdWx0aXBsZSBtZW1v cnkgY29udHJvbGxlcnMsIGNoYW5uZWxzLA0KPiBESU1NcyBhbmQgcmFua3MuIFdoaWxlIHBhdHJv bCBzY3J1YmJpbmcgbWF5IGJlIGRvbmUgYnkgZWFjaCBtZW1vcnkgY29udHJvbGxlcg0KPiBhdCB0 aGUgY2hhbm5lbCBsZXZlbC4NCj4gDQo+IFNvIGEgc2ltcGxlIHJlcXVlc3QgdG8gc2NhbiBhIGZl dyBtZWdhYnl0ZXMgb2Ygc3lzdGVtIHBoeXNpY2FsIGFkZHJlc3Mgd291bGQNCj4gcmVxdWlyZSBh ZGRyZXNzIHRyYW5zbGF0aW9uIHRvIGZpZ3VyZSBvdXQgdGhlIGNoYW5uZWwgYWRkcmVzc2VzIG9u IGVhY2ggb2YgdGhlDQo+IG1lbW9yeSBjb250cm9sbGVycyBhbmQgcHJvZ3JhbW1pbmcgZWFjaCB0 byBzY2FuIHRoZSBwaWVjZXMgdGhleSBjb250cmlidXRlIHRvDQo+IHRoZSB0YXJnZXQgcmFuZ2Uu DQoNCkkgZXhwZWN0IHRoYXQgdGhlIHBoeXNpY2FsIGFkZHJlc3MgdmlzaWJsZSB0byB0aGUga2Vy bmVsIGlzIHRyYW5zcGFyZW50bHkNCnRyYW5zbGF0ZWQgdG8gdGhlIHJlYWwgYWRkcmVzcyBpbiB3 aGljaCBESU1NIGluIHdoaWNoIGNoYW5uZWwuDQoNCi0gTmFveWEgSG9yaWd1Y2hp