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 4A752D17130 for ; Mon, 21 Oct 2024 20:22:59 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D62F16B0089; Mon, 21 Oct 2024 16:22:58 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id D12B06B008A; Mon, 21 Oct 2024 16:22:58 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B8C716B0092; Mon, 21 Oct 2024 16:22:58 -0400 (EDT) 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 995506B0089 for ; Mon, 21 Oct 2024 16:22:58 -0400 (EDT) Received: from smtpin21.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 5F9411A1C53 for ; Mon, 21 Oct 2024 20:22:30 +0000 (UTC) X-FDA: 82698732774.21.9AAF3BA Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2045.outbound.protection.outlook.com [40.107.237.45]) by imf30.hostedemail.com (Postfix) with ESMTP id A212A80008 for ; Mon, 21 Oct 2024 20:22:26 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=Nvidia.com header.s=selector2 header.b=S9FPhUJx; dmarc=pass (policy=reject) header.from=nvidia.com; spf=pass (imf30.hostedemail.com: domain of jhubbard@nvidia.com designates 40.107.237.45 as permitted sender) smtp.mailfrom=jhubbard@nvidia.com; arc=pass ("microsoft.com:s=arcselector10001:i=1") ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1729542010; 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=+XKfRKk2uOgOGdjR34U90RkYmHnIdZuxDy6vt4eV3Ik=; b=Sp5R020zQ6gHKkw2JyYYDY6lZ0yd7sj26+VrNofmdcd+77j8VglNCghaBkF2FfC9iWyLDj kK1y5uPHRRQuLXd7yfMPkAfMooFvj2NfJxnu+38wZ0dwKuObUZcRBcunDy1ZzTygs6M+5y D8+fRa7dcSDy9UZ2WVa/lNA2AnXaRhc= ARC-Seal: i=2; s=arc-20220608; d=hostedemail.com; t=1729542010; a=rsa-sha256; cv=pass; b=gdLs1ByJCuSwY4uksrf89kja7ru33V+MgtXgePQB7ULmQWlT4IfRVp8/GB/Re2uxbB8HRm v+t9rwgB4pDpg/lteGNnmGK7uZaZC/qGOf18bC1mZF86SRUuTfVX5+lphKAsYq55/mEVbH iso6gz8izAqllzdGoG7AMgIjawp5X3g= ARC-Authentication-Results: i=2; imf30.hostedemail.com; dkim=pass header.d=Nvidia.com header.s=selector2 header.b=S9FPhUJx; dmarc=pass (policy=reject) header.from=nvidia.com; spf=pass (imf30.hostedemail.com: domain of jhubbard@nvidia.com designates 40.107.237.45 as permitted sender) smtp.mailfrom=jhubbard@nvidia.com; arc=pass ("microsoft.com:s=arcselector10001:i=1") ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=GZgXLQdLfnU6fjEBtHMT/yrJBXR7l1Qt5eYLE27aVPrAGd9MhZusVrZg11zV5rLEUBAo7NpmUKH9de3kD8ujcXksRfjCXPuiI7jTZ5XBmwX+BdI4Zxw231aTd4X67G8nPm2a3QzvDvWw67hO9x3wyzprMl116vQm5NsmegrRW4zduipZefiYp5cQhsnJTbgAnfZLjaH2Fmms/HnNiFDWIrjPNtIb4AMPEPqjNbu4kZNbiNwpJCF/YSO0Myi+xbMGNFFsZdnkTuzSVV59e+MZ/rAthogPKVmw0+utEOz48Zw/vhN0GhK+gX+eOJASqLh+vviybawduN9ZhmLOudhQJw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=+XKfRKk2uOgOGdjR34U90RkYmHnIdZuxDy6vt4eV3Ik=; b=zN8x/wg7kynCNmF0yxuNKTSqmBAZQeFIpAFWssZgBbpk1A0iNxUOz8Yx+lNQnEr5SsBObITbxMYfWMy1uzbl2LF27CXY/rPZh3FHtKOZPW5Ig4R5DKbxZY+ZTLvbgmdMq00SPsZxa5TmKiCEpotBj/GVgSks3F3vvN4kMJ4eGOgoOvehMGBEXSwdVepnIHZOAt0J3pHWCPcbIUUsW5um3SuuuBpQwQYIMHMKHmGOj8w4huDKSPTu6NTORm+Rtuu4D1IntPd5KC2vAvOHuh4AwrZCfzgP/J1VcqrZd/eER8OzO1wXCwG0PFkU0nOdqPfq3u9F12NrbwjHsUIRwq4lDw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.117.160) smtp.rcpttodomain=redhat.com smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=+XKfRKk2uOgOGdjR34U90RkYmHnIdZuxDy6vt4eV3Ik=; b=S9FPhUJxqirmtBid+O6kuA99+wUvZh64XvHC94NhLPNlf9JSe6VQYMZ0+eYZ134PCDNVNIpjT+0mu7LRnvQ6H35mb4EBO1F4ixYiEt6TIsnzyRneit+8klG7/7wZXu+XLPELt4F7CWHBlTQ2rGneV47vg43HP1+W9nADpS06sPI6Zc6P+/BXDMErK2PcAsHCM/0mpYuWEj+AMxxuSDrW5yY8a/qhMmE6iDFwkpj7m2MqKs2LUNIj5CkFdTeiNYTjgZJOw7O8xEJyPf8LKsAg656hNQy8t7iTk+ZdtESy5G3qKHwDbrSK/2WgDsoKQRWT7aP3uDYPWC3XL3h1X/e2Yw== Received: from BN0PR04CA0106.namprd04.prod.outlook.com (2603:10b6:408:ec::21) by CY8PR12MB7732.namprd12.prod.outlook.com (2603:10b6:930:87::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8069.19; Mon, 21 Oct 2024 20:22:45 +0000 Received: from MN1PEPF0000F0E5.namprd04.prod.outlook.com (2603:10b6:408:ec:cafe::e1) by BN0PR04CA0106.outlook.office365.com (2603:10b6:408:ec::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8069.29 via Frontend Transport; Mon, 21 Oct 2024 20:22:45 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.117.160) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by MN1PEPF0000F0E5.mail.protection.outlook.com (10.167.242.43) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8093.14 via Frontend Transport; Mon, 21 Oct 2024 20:22:44 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Mon, 21 Oct 2024 13:22:28 -0700 Received: from [10.110.48.28] (10.126.231.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Mon, 21 Oct 2024 13:22:28 -0700 Message-ID: Date: Mon, 21 Oct 2024 13:22:27 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [Bug Report] Wrong value of __NR_userfaultfd in asm-generic/unistd.h To: David Hildenbrand , Muhammad Usama Anjum , Andrew Morton , "Shuah Khan" , Peter Xu , "Dr. David Alan Gilbert" , Andrea Arcangeli , "Kim Phillips" CC: , , , , Shuah Khan References: <3d07e4c3-e413-4378-82da-265a477bedb3@collabora.com> <4a775fd6-cb07-46eb-aa15-026e61317c16@redhat.com> Content-Language: en-US From: John Hubbard In-Reply-To: <4a775fd6-cb07-46eb-aa15-026e61317c16@redhat.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN1PEPF0000F0E5:EE_|CY8PR12MB7732:EE_ X-MS-Office365-Filtering-Correlation-Id: 233ce7e1-b0b3-491d-7558-08dcf20e1f7c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700013|1800799024|82310400026; X-Microsoft-Antispam-Message-Info: =?utf-8?B?M0pkRG9QVlgwME9wTDlrTkx5QTZSdGRXczUrVmVHUHR1VmFCeGZlK0duV3RB?= =?utf-8?B?M2dJSDE4NS9PWXZ4ZGcyeUI3NVE0eExNeWt3dnlISzZiRkhnbi8xaWtQZzIz?= =?utf-8?B?b0haUXF2OG85a0Erc1BtMFB5dzlhdlZ6MG9SNVo0UDlxV01rTTczVmhOcTh6?= =?utf-8?B?SUdnaUJnMlIxWW1oWi9KQmxmMVFpR0xnY1VuQk9Wc3FFc0M4cDNqUWpWVy94?= =?utf-8?B?KzQxMzNSYXg3TFhHTUZqQm9tOEdEOGM1clJxZmVuUGpjQ1MwMkFGNHFGTzRy?= =?utf-8?B?TmZjVjNPOTlxd3dRaHl2UnQ2djFrbzVuNTN1YTRqZkpINDMyNWhTMzZoVkw2?= =?utf-8?B?ZnU1UXV6cy90V2RydjRhcFQzY2RGNTdiRTV1ZG5JOEY0ZTB4dkw3cEpLb0wx?= =?utf-8?B?a20rS1VWK3RkS29GUk5DM0xUTVJGMGZ0QzN0VFNIT3pSbWx6OEo3bTdtdjVP?= =?utf-8?B?RWhqcTVYZGdNTnNObDNqMzFJSUJXdHo4NC9CM0Vpc1NIeEMzam4wdmdJNHZC?= =?utf-8?B?amxlSXFnVTFHRVlhS0hjbDdVRW4xaTdwL05jekp5YUFUMXFzVU5OMXJqeUZs?= =?utf-8?B?em0wTndISUE1WmEzR01SeUZQSjhMTEt4bUxKbjFXTi8xSFFYb0lsZ3c0aWor?= =?utf-8?B?amNxb3BXMDBtQktpcXRPMERFVCtDWUM2d2xPUnNxRTUyN1hPUURFbEFWR0Jx?= =?utf-8?B?N1doYkhERDdzZk8zL1RSVTEyYWxhbnNhZzdiMnhHWEU3R1JyNjNGZEhRYUd5?= =?utf-8?B?aUFCNUpjanZoY0svVnRpalVLN3BkdG5BdjNlc3I0ZjZNb2FWUW5ONWkzNFgz?= =?utf-8?B?QkNwOW9WSk4wazhIMW9vUFZCckIrSjFxaS9XQWN4SS9DZUtGSHNDMVRhZjBJ?= =?utf-8?B?Tkttd2tOQ1MrWVgvOWlSRlFZZENtNXRmZm1DdFNBanFGWDVaMURvTFdKR1g4?= =?utf-8?B?YmdJSnhqWk5QandUY2lYdnRnZGswN3hxcG1Fak1LK05YdVVVZVJsVlhJWjBN?= =?utf-8?B?UTJaV3VjdWhJZ1lSYnFrV3Nid1prOW9oZEQ2bDF0U3dRUzFycUpPekZ0OXVj?= =?utf-8?B?T0JTZ1c2S3E3T1p0MXNkdnlhejNPZDBxWmxFWVBXbU5wV0ttbjlDYWxvQlo5?= =?utf-8?B?bmZ6cGcyaXVXWDdvSG8yWG05K1ZiTzMwRStkR25laDRta0xpdWxkQklPVzYr?= =?utf-8?B?TzljbVZkNVo4NEhralJPQ21MSmJxaEVPYUJLTmZPTDQ0ays5ZlRDUy84WUpZ?= =?utf-8?B?bnI2dkkvaUJjK0Y0enZTODlib2gyTnNkdXFnbmZyTVJMRkVpMXhhaWRtZGIx?= =?utf-8?B?V2ljVTNKUXhObno2NkNkSzNnaHp6Vng0WVdaamZhK1pwc1BDdG5qbngxK01l?= =?utf-8?B?eWkya2JTZGFRZWZndTNSSmhReUNiNW1lTGFCTFRsUS91T29xRlQ5dmNCUzJi?= =?utf-8?B?Y3Y2TzdVOWdKRjVqZGloczQzeWs5Nm5VMnNIMTJ1ZWdvZE0wZUJaaDdrcDN4?= =?utf-8?B?Q0kxTHZ0UFdvMW5zb24zR0l4TXJRVnZIUHBqMWM3L0JNNEN4emNUcXlNQzNl?= =?utf-8?B?SHc3bVZMV2ZIKzRTdzBKN1o5Q0lGMS9MZXdoVElCK1NlTkkwbHRJWXdzL3F4?= =?utf-8?B?VUNYbGdOSjdOY2hyRlVSc2NQQkhJSlErZldIN1B6YkVqUFlGYjQ2bWpScmp6?= =?utf-8?B?Slk1dDlHUTJtYjVTc25TRzBGTkFmOTF0YmpSandsZlA5UnJYblBOME1VRDJa?= =?utf-8?B?bGdLcHZad3UzQnFrQmlzMXU3V1FTTms5RFJhM0hhbkZVQUE1VU5sQWtSQmZY?= =?utf-8?B?dEhDYzN6M2hDVHBzM3MwaUYvbkFydW1aOGxHK1dZdUczcmVGcjkwVFp5Zy9J?= =?utf-8?B?eitWdjQzVmxNUnFycVRjMml2cHVVK0J1WTJlUFhDNXJBZHc9PQ==?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(376014)(7416014)(36860700013)(1800799024)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 21 Oct 2024 20:22:44.9606 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 233ce7e1-b0b3-491d-7558-08dcf20e1f7c X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MN1PEPF0000F0E5.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7732 X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: A212A80008 X-Stat-Signature: cp94ri6ujz4gfpyea8incnybt8b9g4c8 X-Rspam-User: X-HE-Tag: 1729542146-331339 X-HE-Meta: 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 k/ZGxDdc 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000788, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 10/21/24 2:33 AM, David Hildenbrand wrote: > Am 21.10.24 um 08:48 schrieb Muhammad Usama Anjum: ... > But now comes the tricky part: an architecture defines whether it wants to > > (a) Use the asm-generic unistd.h > (b) Use a custom one > > E.g., > > $ cat include/uapi/linux/unistd.h > /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ > #ifndef _LINUX_UNISTD_H_ > #define _LINUX_UNISTD_H_ > > /* >  * Include machine specific syscall numbers >  */ > #include > > #endif /* _LINUX_UNISTD_H_ */ > > > For example on riscv arch/riscv/include/asm/unistd.h  will include arch/riscv/include/uapi/asm/unistd.h which will include "asm-generic/unistd.h". > > If you follow the flow on x86, you'll find that it will not include that asm-generic one as default. > > So the asm-generic variant only applies if an arch wants to do it in the generic way. > > $ find tools -name unistd.h > tools/arch/x86/include/uapi/asm/unistd.h > tools/arch/arc/include/uapi/asm/unistd.h > tools/arch/riscv/include/uapi/asm/unistd.h > tools/arch/hexagon/include/uapi/asm/unistd.h > tools/arch/arm64/include/uapi/asm/unistd.h > tools/arch/loongarch/include/uapi/asm/unistd.h > tools/include/uapi/asm-generic/unistd.h > tools/include/nolibc/unistd.h > > Consequently, the asm-generic one should never be used directly. ohhh, I think I may have inadvertently started this problem! Via a few commits such as: a5c6bc590094 ("selftests/mm: remove local __NR_* definitions") , which did things like this: -#include +#include So it seems that it should have been: -#include +#include ...and each arch's unistd.h needs to be checked to ensure that it is up to date with all the symbols that kselftests need. thanks, -- John Hubbard