Received: by 2002:a05:6a10:17d3:0:0:0:0 with SMTP id hz19csp1081864pxb; Sat, 17 Apr 2021 06:10:34 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzC767LTL/6Aj0cK8IfRdj1tF/Chus0JRbTR/mh+v7c0B8U9AebmkVk/TjZFw47OWCxBxmh X-Received: by 2002:a17:907:1b0b:: with SMTP id mp11mr13115256ejc.469.1618665033976; Sat, 17 Apr 2021 06:10:33 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1618665033; cv=none; d=google.com; s=arc-20160816; b=tepurognBNykdHdNxmAsmadJV1Zn10rnHiVAleR4y5CLo8Qr0lokPvQXHOzxDCE4kH ByTsZ6MH1gseoEbwD7NG2xK7tmXRm9zTCjecZqaEMzyE1QRtbeUh2g5VmsRr4436ZWgs B/fcTfZ4ZoyRzc2N9jmw4VcTc6KPk6pTkZX3o+CltHhgKp6ywGboGyc+UFxp91NUFM1x OSEuD72pq6ypwVCam+EiTD2SD+mf4KfHNCrLMeFfNvmR56K9kUu3YsC/6aIvl29JJ3Cu gkp1+9lvusD9fRPGwc851GnHQ/K1B0HX1SrylrKgrJm1xlwmfgwz95khUm/F6hbPfB9w 1GkA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language :mime-version:accept-language:in-reply-to:references:message-id:date :thread-index:thread-topic:subject:cc:to:from; bh=fwx/uxYr8snaY/9JBVgSY+uE+az+d0gcXhNU9s+CmP4=; b=0p/FPrzKD1zejTILfXiS+xZaG+5HAnvwlePgzxtkeYYM0DgX6x7+eyeEuHg6fhq2pj U8pq84qDCnorpshua1BNqAIAsMgAVeOz8fsmMmybNrt3Dot4GppyhpfeSrmORw1dur6f hqIIKi0f5XTs7euhZtKt1c7KutkCP2hctdG5jPp6yEAq7WBZWSt+uaExCDCsZBsdwJme xXchqqwWxtA86e2wRadFUNlFbS4B5Auet+JlK4hnRjkaxBeNjbbhZZDGhpFSCVCSbB/3 dkNlt7JAjuvULkb/Q6zrFfxgts8gsiWXWPKvQQEvouNs0s6KarFOpADw3d3CQ1dPhmXC lhDQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id bs9si6409882edb.595.2021.04.17.06.10.08; Sat, 17 Apr 2021 06:10:33 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236439AbhDQNJE (ORCPT + 99 others); Sat, 17 Apr 2021 09:09:04 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:36579 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236358AbhDQNJB (ORCPT ); Sat, 17 Apr 2021 09:09:01 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-40-NxhZsd9HMzmFc3zLPSZr6w-1; Sat, 17 Apr 2021 14:08:31 +0100 X-MC-Unique: NxhZsd9HMzmFc3zLPSZr6w-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 17 Apr 2021 14:08:30 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.015; Sat, 17 Apr 2021 14:08:30 +0100 From: David Laight To: 'Grygorii Strashko' , Ilias Apalodimas , Jesper Dangaard Brouer , Christoph Hellwig CC: Matthew Wilcox , kernel test robot , Linux-MM , "kbuild-all@lists.01.org" , "clang-built-linux@googlegroups.com" , open list , "linux-fsdevel@vger.kernel.org" , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , "linuxppc-dev@lists.ozlabs.org" , Linux ARM , "David S. Miller" , Matteo Croce , "netdev@vger.kernel.org" Subject: RE: Bogus struct page layout on 32-bit Thread-Topic: Bogus struct page layout on 32-bit Thread-Index: AQHXMqLVEv6dx6LXIEqsc09GLT7Ydaq4r3RA Date: Sat, 17 Apr 2021 13:08:30 +0000 Message-ID: References: <20210409185105.188284-3-willy@infradead.org> <202104100656.N7EVvkNZ-lkp@intel.com> <20210410024313.GX2531743@casper.infradead.org> <20210410082158.79ad09a6@carbon> In-Reply-To: Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogR3J5Z29yaWkgU3RyYXNoa28NCj4gU2VudDogMTYgQXByaWwgMjAyMSAxMDoyNw0KLi4u DQo+IFNyeSwgZm9yIGRlbGF5ZWQgcmVwbHkuDQo+IA0KPiBUaGUgVEkgcGxhdGZvcm1zIGFtMy80 LzUgKGNwc3cpIGFuZCBLZXlzdG9uZSAyIChuZXRjcCkgY2FuIGRvIG9ubHkgMzJiaXQgRE1BIGV2 ZW4gaW4gY2FzZSBvZiBMUEFFDQo+IChkbWEtcmFuZ2VzIGFyZSB1c2VkKS4NCj4gT3JpZ2luYWxs eSwgYXMgSSByZW1lbWJlciwgQ09ORklHX0FSQ0hfRE1BX0FERFJfVF82NEJJVCBoYXMgbm90IGJl ZW4gc2VsZWN0ZWQgZm9yIHRoZSBMUEFFIGNhc2UNCj4gb24gVEkgcGxhdGZvcm1zIGFuZCB0aGUg ZmFjdCB0aGF0IGl0IGJlY2FtZSBzZXQgaXMgdGhlIHJlc3VsdCBvZiBtdWx0aS1wYWx0Zm9ybS9h bGxYWFhjb25maWcvRE1BDQo+IG9wdGltaXphdGlvbnMgYW5kIHVuaWZpY2F0aW9uLg0KPiAoanVz dCBjaGVja2VkIC0gbm90IHNldCBpbiA0LjE0KQ0KPiANCj4gUHJvYmFibGUgY29tbWl0IDQ5NjVh Njg3ODBjNSAoImFyY2g6IGRlZmluZSB0aGUgQVJDSF9ETUFfQUREUl9UXzY0QklUIGNvbmZpZyBz eW1ib2wgaW4gbGliL0tjb25maWciKS4NCj4gDQo+IFRoZSBUSSBkcml2ZXJzIGhhdmUgYmVlbiB1 cGRhdGVkLCBmaW5hbGx5IHRvIGFjY2VwdCBBUkNIX0RNQV9BRERSX1RfNjRCSVQ9eSBieSB1c2lu ZyB0aGluZ3MgbGlrZQ0KPiAoX19mb3JjZSB1MzIpDQo+IGZvciBleGFtcGxlLg0KDQpIbW1tIHVz aW5nIChfX2ZvcmNlIHUzMikgaXMgcHJvYmFibHkgd3JvbmcuDQpJZiBhbiBhZGRyZXNzICtsZW5n dGggPj0gMioqMzIgY2FuIGdldCBwYXNzZWQgdGhlbiB0aGUgSU8gcmVxdWVzdA0KbmVlZHMgdG8g YmUgZXJyb3JlZCAob3IgYSBib3VuY2UgYnVmZmVyIHVzZWQpLg0KDQpPdGhlcndpc2UgeW91IGNh biBnZXQgcGFydGljdWxhcmx5IGhvcnJpZCBjb3JydXB0aW9ucy4NCg0KCURhdmlkDQoNCi0NClJl Z2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0 b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykN Cg==