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 1FF18C6FA82 for ; Mon, 12 Sep 2022 15:58:25 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 44F978D0001; Mon, 12 Sep 2022 11:58:25 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 3FF206B0073; Mon, 12 Sep 2022 11:58:25 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 29F848D0001; Mon, 12 Sep 2022 11:58:25 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id 1BD486B0071 for ; Mon, 12 Sep 2022 11:58:25 -0400 (EDT) Received: from smtpin27.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id D8AB8401EE for ; Mon, 12 Sep 2022 15:58:24 +0000 (UTC) X-FDA: 79903890528.27.23555C9 Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by imf03.hostedemail.com (Postfix) with ESMTP id C4C2820087 for ; Mon, 12 Sep 2022 15:58:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662998303; x=1694534303; h=from:to:subject:date:message-id:references:in-reply-to: content-id:content-transfer-encoding:mime-version; bh=DnbrxVot6Hr6tiKZSEs5u+kyo+WVcCtXRz9MzyvG8Qc=; b=HG/gGqsSap0L7CjVYcPvHvTZ6oPlAUsVdNqAKpgqkEx5dX1++8GJR3rN ksg26n6cWMtb22jI+5BhV/j69bQOz5dQUFBi+r3UnU2LqWh+W2/rpYcSD WoXLYsODwX9du+eZkBNLcbj4Ip2o4Ow5cQct5z08gEGEJy5QB//kcEv7d UAiWxHXi9gKsrTwE3vh1g3DoAjtP2MGdxTQ+HLtYmeL2GTsouw5jOAtcc QUXuv5iGsH1qjvQt9x7tos/R5zH3jU6JPlQJPoqv5b+rBCVgg9lFRw1Dp nyVei144GRLPCNvItL+lK/ZaUpXuIQfd/KJ7rRtEADqz11Hy2tzB7aHRD w==; X-IronPort-AV: E=McAfee;i="6500,9779,10468"; a="295487436" X-IronPort-AV: E=Sophos;i="5.93,310,1654585200"; d="scan'208";a="295487436" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Sep 2022 08:58:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,310,1654585200"; d="scan'208";a="649304317" Received: from fmsmsx601.amr.corp.intel.com ([10.18.126.81]) by orsmga001.jf.intel.com with ESMTP; 12 Sep 2022 08:58:16 -0700 Received: from fmsmsx609.amr.corp.intel.com (10.18.126.89) by fmsmsx601.amr.corp.intel.com (10.18.126.81) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 12 Sep 2022 08:58:16 -0700 Received: from FMSEDG603.ED.cps.intel.com (10.1.192.133) by fmsmsx609.amr.corp.intel.com (10.18.126.89) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31 via Frontend Transport; Mon, 12 Sep 2022 08:58:16 -0700 Received: from NAM11-CO1-obe.outbound.protection.outlook.com (104.47.56.174) by edgegateway.intel.com (192.55.55.68) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2375.31; Mon, 12 Sep 2022 08:58:15 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=VkWU1QHE3Hut8fGa9LNc1APX73dfRo6kVcVYOjT9bRUEXbYsViXX8JmJQAkPVqUuvLQbedn5N/eKzEm0HZOAbetykIVUz2k2CT7bPUMTF/rquMoMzoJ1k1dUX2cSemXtBCdmuE17YCTBPhom62TLzb6Era2NvS8aalxeGtP7TQ7fe3c2K+iDAn++OnQoduuDV5e5qeRy3cHFkHlwvNYFgNLka/ULSTF2SoGduT3juFuONgBN3vzNvr8xkU0Mmq1aGm6lzBg6A9a7gKtqGewodOYJP54hlKbaknDG/0dRMiD2ZYUPDPzFh0frnRe98HacxngAnEtMKNgv4bJPc+MFjQ== 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=DnbrxVot6Hr6tiKZSEs5u+kyo+WVcCtXRz9MzyvG8Qc=; b=fqEROYuPBuo3FKB0sPyfYM/dHIaXGxEZpaj71mh2O6f3upcWH+Ox6O0CLCyIXP/g2eXNGlMnYFIziYy7nNToHpTVxZePi/6yLGrdfNBFVS3MwKGz5v4NstzkYBpXaXNjNblmPrZ4Cs1LeT4pBK+rvAt3mbJ8fg4ozmEG08dwhoIXD7MDJWxNof2xg/NCwz6qYypv5GAH2b4URflf7a3eioyGqL/AWQVgFl5BWXa4oPyLNVY7pbf4QJ8asL6i/nqFZoI89kV+nt5pCXSbCTinH1idvY5PPeZd7uXwtiP89cG2q2Nd6Towzzbw90VUU63DVaiOF5xr6k73um/ngp1QcQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none Received: from MWHPR11MB1392.namprd11.prod.outlook.com (2603:10b6:300:24::14) by SJ0PR11MB5087.namprd11.prod.outlook.com (2603:10b6:a03:2ad::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5612.22; Mon, 12 Sep 2022 15:58:14 +0000 Received: from MWHPR11MB1392.namprd11.prod.outlook.com ([fe80::9d5:53e5:d76:8d2]) by MWHPR11MB1392.namprd11.prod.outlook.com ([fe80::9d5:53e5:d76:8d2%11]) with mapi id 15.20.5612.022; Mon, 12 Sep 2022 15:58:14 +0000 From: "Edgecombe, Rick P" To: "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "corbet@lwn.net" , "pasha.tatashin@soleen.com" , "akpm@linux-foundation.org" , "linux-doc@vger.kernel.org" Subject: Re: [PATCH 1/3] mm/page_table_check: Check writable zero page in page table check Thread-Topic: [PATCH 1/3] mm/page_table_check: Check writable zero page in page table check Thread-Index: AQHYxcU3/0Y4sv/pzEWmDvYrc3g3ha3b9WKA Date: Mon, 12 Sep 2022 15:58:14 +0000 Message-ID: <8e83a99a22b19f0189ea68c99d20eb4b0a18dd59.camel@intel.com> References: <20220911095923.3614387-1-pasha.tatashin@soleen.com> <20220911095923.3614387-2-pasha.tatashin@soleen.com> In-Reply-To: <20220911095923.3614387-2-pasha.tatashin@soleen.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Evolution 3.28.5-0ubuntu0.18.04.2 x-ms-publictraffictype: Email x-ms-traffictypediagnostic: MWHPR11MB1392:EE_|SJ0PR11MB5087:EE_ x-ms-office365-filtering-correlation-id: 1ea45a7d-4965-4a7f-4df8-08da94d799dc x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:MWHPR11MB1392.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230016)(346002)(366004)(39860400002)(136003)(396003)(376002)(4744005)(38100700002)(26005)(36756003)(6512007)(41300700001)(83380400001)(2906002)(8936002)(2616005)(186003)(6506007)(5660300002)(38070700005)(86362001)(66556008)(66946007)(66476007)(8676002)(66446008)(64756008)(91956017)(6486002)(76116006)(122000001)(82960400001)(316002)(478600001)(71200400001)(110136005)(99106002);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?utf-8?B?NXBuMkMxU3RaQW9yWWhxOTEyNGFVSmJ4Wm9nbW1EV2VaejFiS1VTdlg3dklX?= =?utf-8?B?WmFGV2NUYWxHVUo1ZW5ENVdRTEI4Uit0cXBmN0hBQ0gxendvcFY4YjZzcm9t?= =?utf-8?B?VnJWVjN6OWVkdVJqV2hEelorTGhYTUgrYWtaeFI1U2wrcERMZVgvb2MwVVMv?= =?utf-8?B?UEpmT2JyV0ZtUWVIVUo1K3RGZmVpQkRmYmFqeEcxcjIxK3V4eW41UEpib0FF?= =?utf-8?B?TGhXWU5aSjAvU2pSU1liWEEzTzdGc1c2QUR2QndIVHRTR2Q2RGpUZFZCS2Qx?= =?utf-8?B?bzJHRlBMMlk1VnViZmw5VlJ4bVZ3L2szWWRzSnJ2Mk9qcXF6ckpvN1UrN3ln?= =?utf-8?B?ekZ0bDlCaEIyeTFHelAyS1JKMENwc0VxOGJyVmk2VFQ4ZUtwTG1kY0pLQ2pi?= =?utf-8?B?UDc2N1Rmcjc4TGw0YlJTRVZQa291MVBUaFhnNTd6RGdqSXI4Mk5lM09Qa2hG?= =?utf-8?B?cVhyN0NLMmlscmpRZzZmVVBJYStrNEV2Y0xsU2QwRlEwVXlqTGNsOHdNVHM4?= =?utf-8?B?b2tKNmFNV0RNM2x3b1kzMDRmMnFHMHF0NU1CaDNnekNCRWFxV0hQQ1FPZ1pq?= =?utf-8?B?TFM5QUEyWHZrNXFXak1YWXZ1RVgrbFFuOERYSFNrR3pNT1JMVFdzbkU2OWpy?= =?utf-8?B?NFdnTU1MdExzc2RLaC94MU9Sdys5OWJrNTFJcGxRVHlwaWJKbXJ1RFBiSUd6?= =?utf-8?B?eXVsTUozVE5uelZPV1BZY2JHWURGME5IUVNBUE1LbndoT20vUGw0N01oc1hL?= =?utf-8?B?UlZLUlpsdHUyNDdrU05WOUpvTW95c0hTWGxieW5Bc0lGWTZaK0tXQ3F1YUVs?= =?utf-8?B?Nk9hSC9nVkFrWUdlNzg3dEJyRE0xallWdnhldGFWK3FmT0dMbkFXMjBjK0Zl?= =?utf-8?B?R3pjRGF0YndpNFpOUXRKdGZxcVVQSHEySGpLMWFXTEZPWWE4UWhFYy96dDRn?= =?utf-8?B?S1gxbGwwYTJUM1ZleDZBTEZVZXFyYWUvVDFOU2hHUHRSRjY5cm1TdkEzdEpq?= =?utf-8?B?VzF2WDZkWlMxM2xtQVkvclZQUC9GbHVBMFBuZGZEMkdxaGNITFR5SzZLY0Y2?= =?utf-8?B?bHBlSkEvMlR0UEdHVWUxTEpWRSt4V2tYZnVkS0RVRjErOENiL29qUXU1OHVG?= =?utf-8?B?Vy9FOTVVVnZTWGF1TWsyUDQreHZocXUrclZzdkZtWDVYekEvb3V2MnZUSGtE?= =?utf-8?B?N21yZjllU0VpVmpOVjdZa0xYWll0QkZacC9UU2FRQXYvR29PV2dDaElJejBp?= =?utf-8?B?RFJwUUxCL2UyV0NVNjNnbDZ2OWh0dGt4N0FWdlBONEJ5SkZ4RDdPekYxcXlo?= =?utf-8?B?cyt6TFU4ZUM1cVY5UEtlc1ppWWc3ZjlIdDNvMzZQU014U3pwQUtFTVRJR2Q3?= =?utf-8?B?amg1VEovQjNLSzNDWk85UE5zVFlHSXRGcmtPN2UrRXZVMDEyZzNmRkwzeTY1?= =?utf-8?B?YjM4dzlRcmdINWJlK05EUnBuS3RtK1ljM2lmNUVjNUtlVzBIbWQ3WkVQVkEr?= =?utf-8?B?SlVvWkwrdzBuUEh3dVBib0MwS2wvQzhldTJ6bDRwYzNqbjBKMjluMm5ra3JP?= =?utf-8?B?NUFNYUtOS0pRVW5QRTVZTUczZUoxbCtqMnhyU3N3bjRDQXB6RlFOSW5CaTFh?= =?utf-8?B?a0o5QUJqaDZiRzJPWEQ3K2thRXlLWlFnVFBGaS83bDZaK1lpVTJWaHl2L3lG?= =?utf-8?B?QXRNbnJ2eDBIazNLcVJYS1Z6R2dOSHd6djFXNUV0YkkwbkpzNklYeCt4aEpk?= =?utf-8?B?bkNGbWJ0SkVBbFowR3ZyZTI2b2JwY2NVb0RaQkxGdHQzOXM1SDhycnhKMmZC?= =?utf-8?B?MnR1ckVwNTJIZDlGKytWMTdnbjVCVCtSK2JpdlFKWTFWbTVQNFRTQkZSMjJm?= =?utf-8?B?STdkQ1dQRlQvaFRKbkRUT1FCWDdtSW91czBEMVVzY2RuT01HWlZsS3NQYzdj?= =?utf-8?B?RlU1a3ZzSmhqelhqQVYxRE95eDBCRTJvRTBNZVJXWW55M3Q1dmUyV3pJVkJu?= =?utf-8?B?TVg2MHJvQ3B3WmNrbHRWM2U1YVJSbExrTldIY2o3QUxDdVd1UFZjYWVnOU9r?= =?utf-8?B?cFZYTnJLSmo2MFZQMWRpaHBzMStaQklSeGZiS0FKZkdHTlczY1BvQUNOSVVE?= =?utf-8?B?M0lxY2JsSlVxWXZQYS9oZ2Mrd1dOcWNGaXpWZmJlUE1wUEptVC9zeUR1Z1ZW?= =?utf-8?Q?os6g+DkHSe7w7UMNCo1bZ1U=3D?= Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MWHPR11MB1392.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1ea45a7d-4965-4a7f-4df8-08da94d799dc X-MS-Exchange-CrossTenant-originalarrivaltime: 12 Sep 2022 15:58:14.5952 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: q8LZ2f/wHv+G0Ogr/05IjPu6k6m2TJ+YfJviwjCLwFwdqu1QbDPfhLZQ7pe+4P0JEN2yG/qupP625AvPFH5SH1R+Dd4pdB7GzSY6wE7ZfcE= X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR11MB5087 X-OriginatorOrg: intel.com ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1662998304; a=rsa-sha256; cv=pass; b=Yo+XZ7XiBD53n80hq7tI2AqA3r4qqbMAWiT387g07EZx2CL2L0S2AYrpr/qPE31u7TInDb cY5hL1c9A+InT/e+PAn9ziAWLOup0q5iWoaS1bIdUO3E7ORTNwANO3RHic54R+4KxgMtvp sgWc95mYljRmfzmtN5GTkEb2qhlgRO4= ARC-Authentication-Results: i=2; imf03.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b="HG/gGqsS"; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf03.hostedemail.com: domain of rick.p.edgecombe@intel.com designates 192.55.52.93 as permitted sender) smtp.mailfrom=rick.p.edgecombe@intel.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1662998304; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to: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=DnbrxVot6Hr6tiKZSEs5u+kyo+WVcCtXRz9MzyvG8Qc=; b=q1BdrnHOVXj9pSDTTlmWEROWr/243FQCNJugnKnYg0s0YZtJEW0pG/9T+cqFcmizWPRtTM rtReQTPwAMfZELYZFqQjqayXhrnuZO76vAEK2F9oudr6OXvNK7bM5n+yJ8h5u5CL5VA6ER tggKxRA0OEEPhgq1WwNSHy4hJxQmz+4= Authentication-Results: imf03.hostedemail.com; dkim=none ("invalid DKIM record") header.d=intel.com header.s=Intel header.b="HG/gGqsS"; dmarc=pass (policy=none) header.from=intel.com; spf=pass (imf03.hostedemail.com: domain of rick.p.edgecombe@intel.com designates 192.55.52.93 as permitted sender) smtp.mailfrom=rick.p.edgecombe@intel.com; arc=pass ("microsoft.com:s=arcselector9901:i=1") X-Rspam-User: X-Rspamd-Server: rspam06 X-Stat-Signature: wdpzmbntxc5a3wijfarg11dogc4yuce5 X-Rspamd-Queue-Id: C4C2820087 X-HE-Tag: 1662998303-461388 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: T24gU3VuLCAyMDIyLTA5LTExIGF0IDA5OjU5ICswMDAwLCBQYXNoYSBUYXRhc2hpbiB3cm90ZToN Cj4gRnJvbTogUmljayBFZGdlY29tYmUgPHJpY2sucC5lZGdlY29tYmVAaW50ZWwuY29tPg0KPiAN Cj4gVGhlIHplcm8gcGFnZSBzaG91bGQgcmVtYWluIGFsbCB6ZXJvLCBzbyB0aGF0IGl0IGNhbiBi ZSBtYXBwZWQgYXMNCj4gcmVhZC1vbmx5IGZvciByZWFkIGZhdWx0cyBvZiBtZW1vcnkgdGhhdCBz aG91bGQgYmUgemVyb2VkLiBJZiBpdCBpcw0KPiBldmVyDQo+IG1hcHBlZCB3cml0YWJsZSB0byB1 c2Vyc3BhY2UsIGl0IGNvdWxkIGJlY29tZSBub24temVybyBhbmQgc28gb3RoZXINCj4gYXBwcw0K PiB3b3VsZCB1bmV4cGVjdGVkbHkgZ2V0IG5vbi16ZXJvIGRhdGEuIFNvIHRoZSB6ZXJvIHBhZ2Ug c2hvdWxkIG5ldmVyDQo+IGJlDQo+IG1hcHBlZCB3cml0YWJsZSB0byB1c2Vyc3BhY2UuIENoZWNr IGZvciB0aGlzIGNvbmRpdGlvbiBpbg0KPiBwYWdlX3RhYmxlX2NoZWNrX3NldCgpLg0KPiANCj4g U2lnbmVkLW9mZi1ieTogUmljayBFZGdlY29tYmUgPHJpY2sucC5lZGdlY29tYmVAaW50ZWwuY29t Pg0KPiBTaWduZWQtb2ZmLWJ5OiBQYXNoYSBUYXRhc2hpbiA8cGFzaGEudGF0YXNoaW5Ac29sZWVu LmNvbT4NCj4gLS0tDQo+ICBtbS9wYWdlX3RhYmxlX2NoZWNrLmMgfCAyICsrDQo+ICAxIGZpbGUg Y2hhbmdlZCwgMiBpbnNlcnRpb25zKCspDQo+IA0KVGhhbmtzLiBTaG91bGQgd2UgcHV0IHRoaXMg YXQgdGhlIGVuZCwgaW4gb3JkZXIgdG8gbm90IGFkZCBhbnkgbW9yZQ0KQlVHX09OKCkncyB0byB0 aGUga2VybmVsPyBPciBJIGNhbiBqdXN0IHNlbmQgYSBmb2xsb3cgdXAgYW5kIGFkZCB0aGUNCmRv Y3MgeW91IGFza2VkIGZvci4NCg==