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Howlett" , "Vlastimil Babka" , Mike Rapoport , "Suren Baghdasaryan" , Michal Hocko , Kees Cook , Felix Moessbauer , "Thomas Gleixner" , , Xiao Feng References: <202605281011.2ba77cc3-lkp@intel.com> Content-Language: en-US From: K Prateek Nayak In-Reply-To: <202605281011.2ba77cc3-lkp@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF00022572:EE_|CH3PR12MB8969:EE_ X-MS-Office365-Filtering-Correlation-Id: 87a28229-36d0-41af-573f-08debc796a51 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|1800799024|82310400026|376014|36860700016|13003099007|18002099003|22082099003|11063799006|56012099006; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:satlexmb08.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(7416014)(1800799024)(82310400026)(376014)(36860700016)(13003099007)(18002099003)(22082099003)(11063799006)(56012099006);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: +ZqA4Qky1vOKhKwJX4a5R4FxO0xMAXSEejAzFgTHJAmVbmzSU4Z9Ri3o68Mey7k0uKU0rRiYwElJ3BGO76sPjsJyFDjB76dW2NZlBkgHmXyauGJaNPOUcfFLlp994ISrnoRicVynELyPSnhg8tmxzaeiEn8Ffez6uqOxsNpSzBgIp9tlAMc93RfsXpjfJCxYd4Gc+lxsr3ok6j97wsaBVZSzWIdts0qXI+ipHy3FR2FVwUIv3x42+lLG778U0WPrgLiSI41f1m6Tai3heB5Mmm9lpnisvXlOIKQ++iqJKGw9iofkg9lU75+t/ayQ7PbzGcvK2klq7Lhel9BaTnQPPNjIL68KYYy5rf2mgWvwF7oMwOC1RaZ83FC/hk/NsbbB25Kp/AJakb7jm5SalhiI/506sYJ5w36itzb8BMhdoVgM+Jfd0gDQTjZ+v5GvoN91 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 May 2026 05:24:39.3613 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 87a28229-36d0-41af-573f-08debc796a51 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb08.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF00022572.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8969 Hello Oliver, Thank you for the test! On 5/28/2026 10:20 AM, kernel test robot wrote: > Suite: syscalls-05 > ────────────────── > > ... > > prctl02: pass | tainted (0.011s) > prctl08: fail | tainted (0.011s) <--- I think we are failing here https://github.com/linux-test-project/ltp/blob/master/testcases/kernel/syscalls/prctl/prctl08.c#L86 for: {check_inherit_timerslack, 70000, 70000, "Child process"} This checks if the default timerslack is set to the Parent's timerslack at the time of fork and prctl(PR_SET_TIMERSLACK, 0) in the child process expects the timer slack to go back that inherited value. With this patch, instead of inheriting it, we are resetting it at 50us at the time of fork. Since this is documented in man page, I believe the test is correct and this will indeed be a behavior change. -- Thanks and Regards, Prateek