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McKenney" CC: , , Frederic Weisbecker , , Subject: Re: [paulmckrcu:dev.2024.11.01a] [rcutorture] 622baf5d79: WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture] Message-ID: References: <202411051012.f9224879-lkp@intel.com> <1092459d-48e2-4839-a84d-c38d96fa2a36@paulmck-laptop> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <1092459d-48e2-4839-a84d-c38d96fa2a36@paulmck-laptop> X-ClientProxiedBy: SG2PR02CA0118.apcprd02.prod.outlook.com (2603:1096:4:92::34) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|IA0PR11MB7789:EE_ X-MS-Office365-Filtering-Correlation-Id: 1ad8ddf9-e336-4ad4-4af5-08dcfef56892 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|366016|1800799024; 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McKenney wrote: > On Tue, Nov 05, 2024 at 01:00:53PM +0800, kernel test robot wrote: > > > > > > Hello, > > > > kernel test robot noticed "WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture]" on: > > > > commit: 622baf5d79169496973d50fc43636469e6af02b7 ("rcutorture: Make rcutorture_one_extend() check reader state") > > https://github.com/paulmckrcu/linux dev.2024.11.01a > > This is an old commit that failed to handle any torture_type other than > "rcu", including the "srcu" that you tested with. It has since been > replaced by a series of newer commits fixing this and other bugs, with > the current version here: > > c815d319a933 ("rcutorture: Make rcutorture_one_extend() check reader state") > > Does this one work for you? yes, this one works. issue gone when we run same test case up to 20 times. d5e74d8e46e8e45c 622baf5d79169496973d50fc436 c815d319a9331530032be3df69c ---------------- --------------------------- --------------------------- fail:runs %reproduction fail:runs %reproduction fail:runs | | | | | :6 100% 6:6 0% :20 dmesg.EIP:rcutorture_one_extend_check :6 100% 6:6 0% :20 dmesg.WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture] thanks! > > Either way, thank you for your testing efforts! > > Thanx, Paul >