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Howlett" , Muhammad Usama Anjum , Peter Xu , Rich Felker , , , LKML References: <20240614023009.221547-1-jhubbard@nvidia.com> <20240614023009.221547-7-jhubbard@nvidia.com> <12502c05-be51-4c9d-9cb7-5a40ba1fe307@nvidia.com> Content-Language: en-US From: John Hubbard In-Reply-To: Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit 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_|PH7PR12MB5782:EE_ X-MS-Office365-Filtering-Correlation-Id: fd5ec42b-545d-4a8a-094b-08dd4c6fa705 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|36860700013|376014|82310400026|1800799024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?c0hpV2Z0WlQ4WFZsRWJ6UkxteklXWlFCcEZhUmFKU21tUWhYd0JJS1Z1OWZ5?= =?utf-8?B?NFJ5cm5iQVFSVUR1WDdDaHdzWTdaczlMU3VTcmNOeXltSmZNWDM2TlNrbk53?= =?utf-8?B?ZjI2NjVHTkRoTHdWaWh2RGswR0xXOWpDaUV6SkRtTEg0OWZKRXhKamluRjRV?= =?utf-8?B?SWxWR0xpR0R3ZCtTNDhpQi9LUlMxMWtDREtLMDZpQ21GcEpxQVNTS3dqTUJQ?= =?utf-8?B?TERON1dmU3RoQW1wSEdNVVNrL0w1ZVFaQlNqY0NOaEhFc2xmV1hMd1JXWGFV?= =?utf-8?B?MG1vRStHSjJPUWtVQ21HcEdIR3h6QzdPNkF1MmQrYmlvVm1zd3JoeG16NkQ5?= =?utf-8?B?U1daNXIxRkdRNzV5UU9KdzJxUmVRWGpaQWlVbmRoeGx3US9ocGt5UUk0VlVU?= =?utf-8?B?VFJpOXhBVXBMMFAzWDBHK1dDQi95NjlJa0Y1bGNjZCtzTURrZy9NWmF0K3hy?= =?utf-8?B?bld5V2QyMk4yUDFxWlVFdGlxMjRvZnpDckVhKzVESVBLWGcwS21XT1o0cVVX?= =?utf-8?B?UVN2Y1FhR2VrVVhtODR2aTBod1A0NnBRTzVWMnFuZFQ4MzdUaTJGVlFSN3JC?= =?utf-8?B?azJ5L3dKY0llNG9va0tZV1k2MkFlUk4wM0R2TU50eEFaaFkwQWpsMzYrczJk?= =?utf-8?B?WXUvaStHWlI3VDVQS2tJWlZkdFZxY1JJMHhMbklKWmVXUnJKWlFwOUthWXNQ?= =?utf-8?B?N3dIaUg5YUFNbzNsWFZyekNJSkd1Z05qeEx0MC9HRTBpMHNWNlZsaytScHoy?= =?utf-8?B?NnUycnkraWllNDE5aklOc3dLOFFUZ1BHbVJnL01QMDI5YnlmSTJFMlg2QkxJ?= =?utf-8?B?WnJvUUFzV2ZScHltYWFmeXNJeFhVcTlQcDJMOVJBVjFJcWxHRkFMQkUzZXlq?= =?utf-8?B?UWxwZGtHcUVFV1FhZ24xTDhDeERYNnZjT1M0NlBMNkwxZGE5c29KT2NMWDlD?= =?utf-8?B?cjdNakszKzhtVUx5RkxaWFk4Y0svdTluTnhRU2R6am1KVzhtbGpaNFFWTjFU?= =?utf-8?B?SUVxS1hXU0ZnWTR4VDhzbUJHR2lia09ZbFpoY0poM280enhnNVNLRitVSjdQ?= =?utf-8?B?YzhNc0diUDBoYm1GS3kwNldERHVGT01hTTVsZ0tGNThFZFZNWjlZUDRTdVIv?= =?utf-8?B?N00vdUZQb3FLVXI5RlVURXQ1Znl6V0N4Mks5UndOem9qZWY5RWhpMUp6STdC?= =?utf-8?B?NVBZTWNJSndLSHZRS3J5QlR1ZVZQV2oyN0xjcFhxZE9XV3k2Wk5kLzc4K3Z5?= =?utf-8?B?d0lPQjE0bkpVcjRmbERzcEU3ZkNGRUVWZURWNEVIMzhwY0xsK0ltdkMybDZX?= =?utf-8?B?eTArUVpKV2F5aFQ5bEU1Nk9uR1FyUjAvRWxJUVRhbVBUMFNhQ2FHVEFCOTg2?= =?utf-8?B?WmdqYjdYTzNLSUgvZnptRjFPdFdyenROZmhTTzVBYkMwMFFxNHI5aGFrYWdD?= =?utf-8?B?SmR3YjN5dENPWXhWVldyL0FicUZVT0VlOUtsL3NvbDRSd3pvZzQ0OHk1aHBD?= =?utf-8?B?Ynh6RW85WjNsd2dlSy9oZUg5REkxcCt4OEppNGtHODcwcUNzWkZyeFplME81?= =?utf-8?B?b3RNSWFJUUprRW5xaXVxY0ZQVnM0YytUTVJxVzl1d2h1WS9wamdkelRjTlV5?= =?utf-8?B?NGhGTWV5L1N1Z0NVUCtpN1VnaHAreGhUY0Nhek9hL0hYWkd4YVE5anFRQVBq?= =?utf-8?B?TEtuUXNSS2kzVWVLMjdqRE5teFBFd2t4Z2d6eEh4L0JTTVF2NUdycmVpcW4v?= =?utf-8?B?SmNFZGU1K041SCszWjlUNSs3YUh1enlRUHNtc2tUbDdoNStqZXNjUE94MnFD?= =?utf-8?B?V29iWFdPWW9uSkxOaCtlczBlVytpai9obHcvNXNhZ0pUTmxJaWYvalh1eUxp?= =?utf-8?B?dWpRQmorRUoyNW1teEhFYjkrRHBCdUNhMVJhWE9sZFBWdEIyRFh6WGhsNjdq?= =?utf-8?B?YmZlRWVEdUZMQWtJM3puVzlQQUw3TzFvK0hPUU1VcmN0NEJZT042OGJ1TDha?= =?utf-8?Q?R0Ub9wlQS04UKwN8ebgYdW4Djeo0wc=3D?= 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)(7416014)(36860700013)(376014)(82310400026)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Feb 2025 20:47:38.1496 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: fd5ec42b-545d-4a8a-094b-08dd4c6fa705 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: PH7PR12MB5782 On 2/13/25 3:32 AM, Li Wang wrote: > Hi John, > > On Thu, Feb 13, 2025 at 6:31 AM John Hubbard > wrote: > > On 2/12/25 12:34 PM, Dave Hansen wrote: > > Hi John, > > > > On 6/13/24 19:30, John Hubbard wrote: > >> --- a/tools/testing/selftests/mm/protection_keys.c > >> +++ b/tools/testing/selftests/mm/protection_keys.c > >> @@ -42,7 +42,7 @@ > >>   #include > >>   #include > >>   #include > >> -#include > >> +#include > >>   #include > >>   #include > > > > I'm not quite sure how but this broke the protection_keys.c selftest for > > me. Before this commit (a5c6bc590094a1a73cf6fa3f505e1945d2bf2461) things > > are fine.  But after, I get: > > > >       running PKEY tests for unsupported CPU/OS > > > > The "unsupported" test just makes a pkey_alloc() syscall. It's probably > > calling the wrong syscall number or something. > > > > I think it's still broken in mainline. What's the right fix? > > omg I think this is an asm-generic include mistake, I'll check > on it in an hour or so, in more depth. > > > I just found that mlock2_() return a wrong valuein mlock2-test, > I guess that was caused by including the wrong header file > ,which might define a different syscall > number than what the kernel uses on the test system. Agreed. > > Shouldn't we make use of directly? Well, yes and no. For now, there appear to be two commits involved in causing these problems, and the __NR_* parts need to be reverted. I'll explain more when I post later today, but for the moment, the first, mseal- related commit below has some hints about how we got here: 504d8a5e0fd4 selftests/mm: mseal, self_elf: fix missing __NR_mseal a5c6bc590094 selftests/mm: remove local __NR_* definitions thanks, -- John Hubbard