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McKenney" , Boqun Feng , Jonathan Corbet , "Prakash Sangappa" , Madadi Vineeth Reddy , Steven Rostedt , "Sebastian Andrzej Siewior" , Arnd Bergmann , References: <20250908225709.144709889@linutronix.de> <20250908225753.332052396@linutronix.de> Content-Language: en-US From: K Prateek Nayak In-Reply-To: <20250908225753.332052396@linutronix.de> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B06B:EE_|IA0PR12MB8647:EE_ X-MS-Office365-Filtering-Correlation-Id: 454426e6-da02-4439-62f6-08ddf05c7385 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|7416014|376014|82310400026|1800799024; X-Microsoft-Antispam-Message-Info: =?utf-8?B?Z2FvVGtQeVJ3SkhOMlJnS1BacFpXVkprZGpnaW84MWFwZVhBd0RmZ2Y3MUVH?= =?utf-8?B?MW5CLzVnZmlmZUpNVkVIUXdjVEdKQnh5QW9JOVJpTVltcjY0NjhOOGJtTzd1?= =?utf-8?B?ay9sejhHWFBHbDkxQkNiMGVvandDNFNOUGtwSS9BZU90YW1rNUY2TERkTlFh?= =?utf-8?B?blltWkE1elRXUllIak5hTzlFWGFCN3QxK0lCT2k3ektSVkVQTkt1RnRnN2dE?= =?utf-8?B?d2lObExuSXdPTUN6b1hVd0FGK01SeHdka3MvYzZPekNUMDFvTkhqNXhaSjBY?= =?utf-8?B?YmR1cVBkVzFHTWtwaDg3aHN0dUV1NHBVRkZEOXFtSUE4NUpaZzhTb1ZEZlps?= =?utf-8?B?cVpTR1ovV1BQUWREWDdVSGVaR2gyL0x5NXFiWThSYktLT1RMSjZxSTdzNzVD?= =?utf-8?B?NjRMZWVqenZCdVhOSVlQL1BuVStPb3JYSUN1eSs5SUZMOFlCVFBPTEpWZWRy?= =?utf-8?B?akpBeXBmak9XN3VtcytpbVlJZU1QblpXMmtNNnFNM1RFUkVUd2laWVdmVzBu?= =?utf-8?B?b010aEd2UE8wK2lsQ0NMVjAxTkVXM293Zm5aYVdQUXdEY2orVG1DQXRXSFAv?= =?utf-8?B?ckYrQTR0V21FeG1SdWplS24xL09icit5NU1jTlE5dWFvRUNjS1RhRkdnUDFX?= =?utf-8?B?emw3RmtSRkJiMmZPZlpHdkVsQXlmL29BRnFCWVZRT0RXNndVOEtQN1lpYnJs?= =?utf-8?B?dm90MXdyTitOdmlUUXVYcjg1d2tZblo2YTZYdEN1c0pWSFZML09pUXo2YVVW?= =?utf-8?B?dzBubnpFU3hFV29DZ3FMQkpTaVVvTGZheUZDSVA1NU5nZjJYcjRFNXRrNmQ2?= =?utf-8?B?UTJQL1B5V0NVc1VlWFN0OXZZMEJvcDJMNjA5cFI5Z21PZlJsOU1ZaFE4NnZW?= =?utf-8?B?ZC9uWEpzNXFnbi9GT09VLy9rVEF5K1gzNmZjc2dxTVIxd1UzMkJQaGN0Rm0z?= =?utf-8?B?L2F0dkY5Rm1IQU1FL290VlN6UkNWUWp0eWtZUVZORHZndFd6WDREWkh0ZzB1?= =?utf-8?B?Ui9mSE03RHplS3RkRStIeTQzTGE3SFZxUnR5dUtLQ21SdEY2SkhhYzhKVXNk?= =?utf-8?B?eW90WXh1NEVuejREbmltTGRuRkM3MFNSb2hZRTViaU1mNXJLdkw5RFVNNGY2?= =?utf-8?B?azg1TlZjY2hQaGNQTGFsN3Y4T1grM3Jubk1oT2d2UGhvZzl5STYxZzYwM2Fa?= =?utf-8?B?SlZDZm40dDkydERURE9KU2NEUDBnQnRHSDhHUWVjR3NNd2M4dVB3TGdtVklh?= =?utf-8?B?Q2RoK2xnYzdoRGFQZ21VMUNMV2loOE5FeVBSSXdySlRxZ3puV0FrYkpXUm0r?= =?utf-8?B?eTRrekFEaC9LOGFTT29LN1M0Y2E4VEdGVWZsY3Zra21IOUJYMHJ5bitNRlN2?= =?utf-8?B?UlJkSkVjNjRPT3UvVkJqd0Y3cnVJTXpuUW9ZVGRkTDdQdDAwbXlsM0FabldH?= =?utf-8?B?RXEwWlRzODdiYUtiRmhrcVNoK1hnbEZCQ2VlMHFuMzhTODlnTHlzRWk0TnFZ?= =?utf-8?B?L0F3b0RKT2lqQStTaDJDOFNLODhhMFpVQXJudXNlNmV2dUtiYzdXV0ZkMnA2?= =?utf-8?B?ZE1YMk45MXN2WnlwSkdxZlNOU3ZLbFlIbG13dDBZVEljSWw2a1hvdGtZcHA3?= =?utf-8?B?T1psblVxUFoxTi9WbXJPQWc2UEJSbjN3dnN4bHRlYWllWnlqZ1JWcjkxK2ZW?= =?utf-8?B?K1JEMzdrekF6bFhTV3ZlOE9GYXFPWlowQUUwNkFqOTVGek1Sa0NITXl1TTFM?= =?utf-8?B?aDlKQ2pWbmlkQ3czUlBETGhmVW1WdGUzVGhyWk9GRnBSTW8rbGtEZ01VVHhH?= =?utf-8?B?YXJxbk02TFhGVjZWSXhrUndNVGhKVkhxeTdnZHlrbXdpL21IUitnL3A3YUsw?= =?utf-8?B?RjU4NlJYQ1R0OVdmWElNWmloM2kzeko3VWk4dHZMemVjSDFuZitqYjcraHZt?= =?utf-8?B?aTZxZ1NadmZWNHRnUXI3aFZuWDQvV1k5MG9paVptV3hCemZZSkhKZEVBbVEy?= =?utf-8?B?YXpIbkNZRFdpY2RhTFJaeFhhd2dxV09SRGdjV0VralVYdnpPcyt5cmNRVkJK?= =?utf-8?Q?JR5gXk?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:satlexmb07.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(7416014)(376014)(82310400026)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Sep 2025 11:23:22.1838 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 454426e6-da02-4439-62f6-08ddf05c7385 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=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B06B.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB8647 Hello Thomas, On 9/9/2025 4:30 AM, Thomas Gleixner wrote: > Provide an initial test case to evaluate the functionality. This needs to be > extended to cover the ABI violations and expose the race condition between > observing granted and ariving in rseq_slice_yield(). nit. s/ariving/arriving/ I finally managed to trigger that cheeky race condition too :) # Starting 2 tests from 2 test cases. # RUN slice_ext.n2_2_50.slice_test ... # Success 2088616 # Yielded 45097 # Scheduled 174 # Raced 2 # OK slice_ext.n2_2_50.slice_test -- Thanks and Regards, Prateek