Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp4416137pxu; Mon, 21 Dec 2020 11:55:04 -0800 (PST) X-Google-Smtp-Source: ABdhPJxMStvV+t0f70dLc8WWjp00/XM0duVSP0ru5gE9250BGS0Pfc1b3umEEkRljIHBDox8mD2j X-Received: by 2002:a50:c053:: with SMTP id u19mr17322951edd.109.1608580504312; Mon, 21 Dec 2020 11:55:04 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1608580504; cv=pass; d=google.com; s=arc-20160816; b=ipcwe3/c0u8upHNYm8NpfQoggTCQGkBEtuGrW58hShLeLIiewmeR9mgN0oXid4GyJQ yynLrfYsba7MKvtv/k10tdnop+hxMg3xwfut9xLuaERbOb/j0fJUEBfc7RioUm9bhR5y Hc7OvArov2r3jrJ5KYRuA3UFLv4kp4kinU0BKoALPx32wEJRQt0i/MAn9zGGydCC8vgV 0hlWRKWDeZxj+pxTmjiA+5AQuc+TYiaFMDI2vs1kyQXPO8XmZLC4A1Z51kvRoHDDRriX qQaV9i5Tjd1wsiSoLP4RpcGb4iaANmjyM8nb5Y/vkc6WHC0TsX5TKQ00s3cEp+rZUxfF 9niQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:references :message-id:date:thread-index:thread-topic:subject:cc:to:from :dkim-signature; bh=iOowHVkO9BAVArQ3BI8BQKgxB0ML6N+RSePRfx6Qeoo=; b=hNqQvbwT6K6t81M7dZiQ8vumqewH21L6xjCWB23cY+OrzrfptlIiHMGyhjr6WZntJD PjR7NfFQhrxS33f6MEZSGSugF7woMzRgPprt0YvuqHOriZ9yvzJiGiZymG8M/VEY+5dL jksQVdGT5DwqbQoBW0LnX36hNQniTucdKWqduUCsG3JaZwwk29r0V33YxEz81vi840hf SlAogDgAq5PYAuOMBul5ogpf5vJgsNbDvcsakhgvQP5Y0HWgsqbUqyiyCP3fu81PsFR9 0EinsVOHvR6hxOPQKdGKteDXmyN6cR53Bjy5HD7yEiyBrGPbr+QQieJzR4uMSwivYGxw IW7w== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@vmware.com header.s=selector2 header.b=nl206Qy0; arc=pass (i=1 spf=pass spfdomain=vmware.com dkim=pass dkdomain=vmware.com dmarc=pass fromdomain=vmware.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=pass (p=NONE sp=NONE dis=NONE) header.from=vmware.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q9si10864083edr.98.2020.12.21.11.54.41; Mon, 21 Dec 2020 11:55:04 -0800 (PST) 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; dkim=pass header.i=@vmware.com header.s=selector2 header.b=nl206Qy0; arc=pass (i=1 spf=pass spfdomain=vmware.com dkim=pass dkdomain=vmware.com dmarc=pass fromdomain=vmware.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=pass (p=NONE sp=NONE dis=NONE) header.from=vmware.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726166AbgLUTwo (ORCPT + 99 others); Mon, 21 Dec 2020 14:52:44 -0500 Received: from mail-eopbgr680066.outbound.protection.outlook.com ([40.107.68.66]:52868 "EHLO NAM04-BN3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725811AbgLUTwn (ORCPT ); Mon, 21 Dec 2020 14:52:43 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=QAicNhQZ9HuJ+r6JIeXryDnR+fCYr57VtXRkyFrypR5lkdkYusuKjatNGD7bzXuZ/rP4XQxNNu75dz+vMEjutXsnKJGpqcfiYGYeCkIHpk4gWGpo8OR6sAJMf+iWw8tsz+yxrUBz4Yait5o6Xbn4ViwL5CZZJUVvaaBkj/ZxjpVoBqKCufimq7I6lOSYpKYdwtLkCnisF5gzufBsxBf8CrNXZEmveRLkbxbObPmbMrKQiLZTRybzDuIUX8uz9Rhmt8Z0oXrnPZmoG4Bz4K97Abz48G8noXNRx/0P1aUn7wSwygYCr8ffORiKluqM9qP89+U//5lmkWmFaFioAVAYHw== 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-SenderADCheck; bh=iOowHVkO9BAVArQ3BI8BQKgxB0ML6N+RSePRfx6Qeoo=; b=ATSr+FNTCABkdbMh5ZZ1ep7ubYSoDBgNOqLuxhGajoM8DbzWVcQARuo/qBAOo0q7giH+cWCxEF/KhDoSb0+l376kf46/N5i6QqUMlP6VnfVykeDlNpe/Xrana1ZfC1rcfg+M4rz9B0wdCMr8Y2j8bmy+a14DxjDf4wAUqkPw9OPmX/6f9b9CAZujBHSt3NJpzQN86Lmrjqg7PRKdEGyJsPQbvbCpY8gHWLEj5wemgOD0b37woXMta3i2cFm/rpNl/UooHO76FbFZhcAZMnTTjkKafW356fPhDIT8zGAO1WUwXJA1VxTQfHMGovG/TFFzAONHkDSU3uEDGzKAxsYewQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=vmware.com; dmarc=pass action=none header.from=vmware.com; dkim=pass header.d=vmware.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vmware.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=iOowHVkO9BAVArQ3BI8BQKgxB0ML6N+RSePRfx6Qeoo=; b=nl206Qy0wKPkpNx81MAv60+kY/vThdItXRWt1E6oC32K7/JImo+HHvpR+QKdPsyDyuWn2YVwk7sufLA5plZDE4An5PV4TN3lGSkdovvvccsYorPMfDv6suNozXZwCr719ojPX24fWPVRFqNUPD5qS7jISDXO+IAeIx3IfzCMotE= Received: from BL0PR05MB4772.namprd05.prod.outlook.com (2603:10b6:208:29::17) by BL0PR05MB5553.namprd05.prod.outlook.com (2603:10b6:208:62::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.24; Mon, 21 Dec 2020 19:51:53 +0000 Received: from BL0PR05MB4772.namprd05.prod.outlook.com ([fe80::cd2a:22df:cd7f:937d]) by BL0PR05MB4772.namprd05.prod.outlook.com ([fe80::cd2a:22df:cd7f:937d%7]) with mapi id 15.20.3700.026; Mon, 21 Dec 2020 19:51:52 +0000 From: Nadav Amit To: Peter Xu CC: "linux-fsdevel@vger.kernel.org" , Jens Axboe , Andrea Arcangeli , Alexander Viro , "io-uring@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" Subject: Re: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure Thread-Topic: [RFC PATCH 03/13] selftests/vm/userfaultfd: wake after copy failure Thread-Index: AQHW18+FycdL3uClaE6RLwJGWN/OTaoB9dSA Date: Mon, 21 Dec 2020 19:51:52 +0000 Message-ID: <2B08ECCA-A7D2-4743-8956-571CB8788FDA@vmware.com> References: <20201129004548.1619714-1-namit@vmware.com> <20201129004548.1619714-4-namit@vmware.com> <20201221192846.GH6640@xz-x1> In-Reply-To: <20201221192846.GH6640@xz-x1> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=none action=none header.from=vmware.com; x-originating-ip: [2601:647:4700:9b2:104c:8d35:de28:b8dc] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: f48a03f1-9cb9-4a98-36b3-08d8a5e9dd28 x-ms-traffictypediagnostic: BL0PR05MB5553: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 9QVArjQVz2AWr07iLlmrFHBjjH/yhScnpeefmr6zLJ2eq4jO+mLwPj4WI6NfbUvlcacvbu1EBzX7fyEp6ZwD0E8hvNSYp/2aZVPiVjqHO43lUxoGHW0AcSirfA322dwg4Ez2GP0Ls2jTz/6WClIo7uhtRezjHR//Ebgib+yHgUdGcHLlVMlCW6F03rv9CSrafo+HdR3Pch4eVN4NxCINlP56j7PpBhwt3Fs4/UwhHOUhLrxaUIH5j9mMjjEgRTER7MdCI5HTGnOCiyd8SIVwfbHA3ANBCNl9z6HdrNF4bPiWVbiCDpKgfeIMv7oYfw6feeEpiHebSDoyDAZd+3NNHD//VMJ4NQpnCSPoWSc8B/+FX03fxHbShW3reVxKirM3Z0mO1b++/zf9wLOuHaXQsqkISuAUqcFo+y3fgIFa56AIQaOaLi8SW1sz7XNHlhmM x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:BL0PR05MB4772.namprd05.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(39860400002)(136003)(396003)(376002)(346002)(366004)(64756008)(66446008)(36756003)(6916009)(4326008)(71200400001)(86362001)(2906002)(83380400001)(6486002)(91956017)(6512007)(316002)(76116006)(2616005)(53546011)(33656002)(478600001)(8936002)(66556008)(5660300002)(8676002)(54906003)(186003)(66946007)(6506007)(66476007)(45980500001);DIR:OUT;SFP:1101; x-ms-exchange-antispam-messagedata: =?utf-8?B?ZkdqSVRuS29GbkhrWmQzT2N5YzEwODJjTENtaVZLZHFTNmtCZkd2OHJTenVB?= =?utf-8?B?V01nczZDRys5L1VWcWtWV2Z6cmdnV3NnR1FVZ1IrcGI5WnhKMjZJZklrVHJw?= =?utf-8?B?cHRXYmMyeHowTml6L2dLcG9kYWNrQTFPTVJoUnJzcHZjT29SM2JNRy8reldI?= =?utf-8?B?VWR5VEs1NDZRZ0p4VmFaWkppMWluOGNSRkFvRFpwakEycWZXYXEzUC9xSTda?= =?utf-8?B?NmVTVE15REdqN3oreDJJU2Fad25IeUc3VVJkcGcyVGtheXpjT2hyOW0vR3Jx?= =?utf-8?B?bmdhVXc3QXgySVl4YXZBOUtDaXBjMXE0RVhMYVVyVmdXSmxyY1h6OEtTK2tr?= =?utf-8?B?Z1VlaXJhdVpuK2h6SkZTZEdIbkRFWVFZV1FCZ1VtOGF5VTRQZUYzS2w4MDBq?= =?utf-8?B?Zk10UmpqNW9FYmcxc0I0VG93cGJQNmIxTjBGTmozMzI0Q0l1dEF1UUNpQ2NL?= =?utf-8?B?ZElrSnNzOGsxZmxXS0tYOWpTZHh1WUdQcWUwOUs1eTZpRjZBdU1XRmlNOWcx?= =?utf-8?B?U1RxYUJUbWRMZEsvYnNtU0sydWJTOFdGYXRuUTV3ZUZPRU43OU5KOWRjeExs?= =?utf-8?B?NFJKZHA5MG5ndlE2UzdWQlMwRWxQSTFvbC9VRzZ4YUYwV1BweVdPMGNIRXAz?= =?utf-8?B?YlhzNWowZkJxTkFqdWVOeEFIU2dIS0RiUlVpdHovU3liOXoyQWJGenZGbS8x?= =?utf-8?B?VWM4WjBWaXFoQVVibk05czBzcnZVOHkzQmFOejF3d3FocUg1d3B2WXBwYmhh?= =?utf-8?B?aUtQakNOZk8wbWU2S1VYcEFrR3ZDc3hIVWZZV1JTU1V4WW1JWU1UYXFhN3V4?= =?utf-8?B?b0YwaENTSjRXcTlFRDU5dldVbHFEQ0VKei9TR0FybVZLUTUyZUtOdDJ3Y3Yw?= =?utf-8?B?Q2NtaVRpNmRTY2JUcjVadHhsOGZDRmNKV1ZjeUF0alpoVVBNV3NEbXY3eU0v?= =?utf-8?B?MmxDZzl6UWszMGVoWFJBZjhaSmw3bTJXd09XSGlGd204bGJSVStsenJ2R1JS?= =?utf-8?B?N0t1aFJ6ZVJQVSs4eTBUbC9HQ1duMWQ1blhIY0JkY0I5ODJMekdrNFk1MnNo?= =?utf-8?B?cUVrUXgxNHB0U1VtRVA1R2xCSndpRWZXNXVIUml5cUVVRWJmb3UzcWk1aUtP?= =?utf-8?B?UXlqODRIY3VjWnI3MGpmSmxoU0dBb0NFcWhtS3RlaWdWM0ZjR2JZRmNCZ3Q2?= =?utf-8?B?bW1weEoxQVRocklsQUordEtlZ0JscW9kRU5kOWdVMEs5bDZBTlBWbkV6eVlq?= =?utf-8?B?NklpdUFiV0VTWlg1V0NmZWNFbXNNa3RXa3NqY05DeFBVSVhucGw2UDI5UHUy?= =?utf-8?B?eG84djZKQlo2dGUwK1lqUkFPTFlLYnUvN1Q1bXY2ejFMOWZDOHVrZWI3dnBG?= =?utf-8?B?YmhlRlA3K1NmOEdGUUVkbFNKMmh6STEvSTVNcWJkRGVNdndSem0vdjJjaGRD?= =?utf-8?Q?Hllaxicl?= x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: vmware.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BL0PR05MB4772.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: f48a03f1-9cb9-4a98-36b3-08d8a5e9dd28 X-MS-Exchange-CrossTenant-originalarrivaltime: 21 Dec 2020 19:51:52.8179 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: b39138ca-3cee-4b4a-a4d6-cd83d9dd62f0 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: XygaxrBl4XaSyUPh/lNcwHJ/FLgSO2eqNLLoFE/2WwyUzifYzk4jV0LxKhH1KbXUZIsdCE6rDwGIaTUiF3NXeQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL0PR05MB5553 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org PiBPbiBEZWMgMjEsIDIwMjAsIGF0IDExOjI4IEFNLCBQZXRlciBYdSA8cGV0ZXJ4QHJlZGhhdC5j b20+IHdyb3RlOg0KPiANCj4gT24gU2F0LCBOb3YgMjgsIDIwMjAgYXQgMDQ6NDU6MzhQTSAtMDgw MCwgTmFkYXYgQW1pdCB3cm90ZToNCj4+IEZyb206IE5hZGF2IEFtaXQgPG5hbWl0QHZtd2FyZS5j b20+DQo+PiANCj4+IFdoZW4gdXNlcmZhdWx0ZmQgY29weS1pb2N0bCBmYWlscyBzaW5jZSB0aGUg UFRFIGFscmVhZHkgZXhpc3RzLCBhbg0KPj4gLUVFWElTVCBlcnJvciBpcyByZXR1cm5lZCBhbmQg dGhlIGZhdWx0aW5nIHRocmVhZCBpcyBub3Qgd29rZW4uIFRoZQ0KPj4gY3VycmVudCB1c2VyZmF1 bHRmZCB0ZXN0IGRvZXMgbm90IHdha2UgdGhlIGZhdWx0aW5nIHRocmVhZCBpbiBzdWNoIGNhc2Uu DQo+PiBUaGUgYXNzdW1wdGlvbiBpcyBwcmVzdW1hYmx5IHRoYXQgYW5vdGhlciB0aHJlYWQgc2V0 IHRoZSBQVEUgdGhyb3VnaA0KPj4gY29weS93cCBpb2N0bCBhbmQgd291bGQgd2FrZSB0aGUgZmF1 bHRpbmcgdGhyZWFkIG9yIHRoYXQgYWx0ZXJuYXRpdmVseQ0KPj4gdGhlIGZhdWx0IGhhbmRsZXIg d291bGQgcmVhbGl6ZSB0aGVyZSBpcyBubyBuZWVkIHRvICJtdXN0X3dhaXQiIGFuZA0KPj4gY29u dGludWUuIFRoaXMgaXMgbm90IG5lY2Vzc2FyaWx5IHRydWUuDQo+PiANCj4+IFRoZXJlIGlzIGFu IGFzc3VtcHRpb24gdGhhdCB0aGUgIm11c3Rfd2FpdCIgdGVzdHMgaW4gaGFuZGxlX3VzZXJmYXVs dCgpDQo+PiBhcmUgc3VmZmljaWVudCB0byBwcm92aWRlIGRlZmluaXRpdmUgYW5zd2VyIHdoZXRo ZXIgdGhlIG9mZmVuZGluZyBQVEUgaXMNCj4+IHBvcHVsYXRlZCBvciBub3QuIEhvd2V2ZXIsIHVz ZXJmYXVsdGZkX211c3Rfd2FpdCgpIHRlc3QgaXMgbG9ja2xlc3MuDQo+PiBDb25zZXF1ZW50bHks IGNvbmN1cnJlbnQgY2FsbHMgdG8gcHRlcF9tb2RpZnlfcHJvdF9zdGFydCgpLCBmb3INCj4+IGlu c3RhbmNlLCBjYW4gY2xlYXIgdGhlIFBURSBhbmQgY2FuIGNhdXNlIHVzZXJmYXVsdGZkX211c3Rf d2FpdCgpDQo+PiB0byB3cm9uZ2x5IGFzc3VtZSBpdCBpcyBub3QgcG9wdWxhdGVkIGFuZCBhIHdh aXQgaXMgbmVlZGVkLg0KPiANCj4gWWVzIHVzZXJmYXVsdGZkX211c3Rfd2FpdCgpIGlzIGxvY2ts ZXNzLCBob3dldmVyIG15IHVuZGVyc3RhbmRpbmcgaXMgdGhhdCB3ZSdsbA0KPiBlbnF1ZXVlIGJl Zm9yZSByZWFkaW5nIHRoZSBwYWdlIHRhYmxlLCB3aGljaCBzZWVtcyB0byBtZSB0aGF0IHdlJ2xs IGFsd2F5cyBnZXQNCj4gbm90aWZpZWQgZXZlbiB0aGUgcmFjZSBoYXBwZW5zLiAgU2hvdWxkIGFw cGx5IHRvIGVpdGhlciBVRkZESU9fV1JJVEVQUk9URUNUIG9yDQo+IFVGRkRJT19DT1BZLCBpaXVj LCBhcyBsb25nIGFzIHdlIGZvbGxvdyB0aGUgb3JkZXIgb2YgKDEpIG1vZGlmeSBwZ3RhYmxlICgy KQ0KPiB3YWtlIHNsZWVwaW5nIHRocmVhZHMuICBUaGVuIGl0IGFsc28gbWVhbnMgdGhhdCB3aGVu IG11c3Rfd2FpdCgpIHJldHVybmVkIHRydWUsDQo+IGl0IHNob3VsZCBhbHdheXMgZ2V0IHdha2Vk IHVwIHdoZW4gZmF1bHQgcmVzb2x2ZWQuDQo+IA0KPiBUYWtpbmcgVUZGRElPX0NPUFkgYXMgZXhh bXBsZSwgZXZlbiBpZiBVRkZESU9fQ09QWSBoYXBwZW4gcmlnaHQgYmVmb3JlDQo+IG11c3Rfd2Fp dCgpIGNhbGxzOg0KPiANCj4gICAgICAgd29ya2VyIHRocmVhZCAgICAgICAgICAgICAgICAgICAg ICAgdWZmZCB0aHJlYWQNCj4gICAgICAgLS0tLS0tLS0tLS0tLSAgICAgICAgICAgICAgICAgICAg ICAgLS0tLS0tLS0tLS0NCj4gDQo+ICAgaGFuZGxlX3VzZXJmYXVsdA0KPiAgICBzcGluX2xvY2so ZmF1bHRfcGVuZGluZ193cWgpDQo+ICAgIGVucXVldWUoKQ0KPiAgICBzZXRfY3VycmVudF9zdGF0 ZShJTlRFUlJVUFRJQkxFKQ0KPiAgICBzcGluX3VubG9jayhmYXVsdF9wZW5kaW5nX3dxaCkNCj4g ICAgbXVzdF93YWl0KCkNCj4gICAgICBsb2NrbGVzcyB3YWxrIHBhZ2UgdGFibGUNCj4gICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgVUZGRElPX0NPUFkNCj4gICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICBmaWxsIGluIHRoZSBob2xlDQo+ ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgd2FrZSB1cCB0aHJl YWRzDQo+ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAodGhp cyB3aWxsIHdha2UgdXAgd29ya2VyIHRocmVhZCB0b28/KQ0KPiAgICBzY2hlZHVsZSgpDQo+ICAg ICAgKHdoaWNoIG1heSByZXR1cm4gaW1tZWRpYXRlbHk/KQ0KPiANCj4gV2hpbGUgaGVyZSBmYXVs dF9wZW5kaW5nX3dxaCBpcyBsb2NrIHByb3RlY3RlZC4gSSBqdXN0IGZlZWwgbGlrZSB0aGVyZSdz IHNvbWUNCj4gb3RoZXIgcmVhc29uIHRvIGNhdXNlIHRoZSB0aHJlYWQgdG8gc3RhbGwuICBPciBk aWQgSSBtaXNzIHNvbWV0aGluZz8NCg0KQnV0IHdoYXQgaGFwcGVucyBpZiB0aGUgY29weSBjb21w bGV0ZWQgYmVmb3JlIHRoZSBlbnF1ZXVpbmc/IEFzc3VtZQ0KdGhlIHBhZ2UgaXMgd3JpdGUtcHJv dGVjdGVkIGR1cmluZyBVRkZESU9fQ09QWToNCg0KDQpjcHUwCQkJCQljcHUxCQkNCi0tLS0JCQkJ CS0tLS0JCQkNCmhhbmRsZV91c2VyZmF1bHQNCgkJCQkJVUZGRElPX0NPUFkNCgkJCQkJWyB3cml0 ZS1wcm90ZWN0ZWQgXQ0KCQkJCSAJIGZpbGwgaW4gdGhlIGhvbGUNCgkJCQkgCSB3YWtlIHVwIHRo cmVhZHMNCgkJCQkgCSBbbm90aGluZyB0byB3YWtlXQ0KCQkJCQkJCQ0KCQkJCQlVRkZEX1dQICh1 bnByb3RlY3QpDQoJCQkJCSBsb2dpY2FsbHkgbWFya3MgYXMgdW5wcm90ZWN0ZWQNCgkJCQkJIFtu b3RoaW5nIHRvIHdha2VdDQoNCiBzcGluX2xvY2soZmF1bHRfcGVuZGluZ193cWgpDQogIGVucXVl dWUoKQ0KICBzZXRfY3VycmVudF9zdGF0ZShJTlRFUlJVUFRJQkxFKQ0KICBzcGluX3VubG9jayhm YXVsdF9wZW5kaW5nX3dxaCkNCiAgbXVzdF93YWl0KCkNCg0KCQkJCQlbICNQRiBvbiB0aGUgc2Ft ZSBQVEUNCgkJCQkJIGR1ZSB0byB3cml0ZS1wcm90ZWN0aW9uIF0NCg0KCQkJCQkuLi4NCgkJCQkJ IHdwX3BhZ2VfY29weSgpDQoJCQkJCSAgcHRlcF9jbGVhcl9mbHVzaF9ub3RpZnkoKQ0KCQkJCQkg IFsgUFRFIGlzIGNsZWFyIF0NCgkJCQkJDQogICBsb2NrbGVzcyB3YWxrIHBhZ2UgdGFibGUNCiAg ICBwdGVfbm9uZSgqcHRlKSAtPiBtdXN0IHdhaXQNCg0KTm90ZSB0aGF0IGFkZGl0aW9uYWwgc2Nl bmFyaW9zIGFyZSBwb3NzaWJsZS4gRm9yIGluc3RhbmNlLCBpbnN0ZWFkIG9mDQp3cF9wYWdlX2Nv cHkoKSwgd2UgY2FuIGhhdmUgb3RoZXIgY2hhbmdlX3B0ZV9yYW5nZSgpIChkdWUgdG8gd29ya2Vy 4oCZcw0KbXByb3RlY3QoKSBvciBOVU1BIGJhbGFuY2luZyksIGNhbGxpbmcgcHRlcF9tb2RpZnlf cHJvdF9zdGFydCgpIGFuZCBjbGVhcmluZw0KdGhlIFBURS4NCg0KQW0gSSBtaXNzaW5nIHNvbWV0 aGluZz8NCg0K