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McKenney" CC: , , Frederic Weisbecker , kernel test robot , , Subject: [paulmckrcu:dev.2024.12.11a] [rcutorture] 774c4d7adb: WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture] Message-ID: <202412241458.150d082b-lkp@intel.com> Content-Disposition: inline X-ClientProxiedBy: SI2PR02CA0007.apcprd02.prod.outlook.com (2603:1096:4:194::23) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) Precedence: bulk X-Mailing-List: rcu@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|CH3PR11MB8187:EE_ X-MS-Office365-Filtering-Correlation-Id: 10d2e2a5-c5c5-44d2-7767-08dd23e6fd18 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|366016; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:LV3PR11MB8603.namprd11.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(376014)(1800799024)(366016);DIR:OUT;SFP:1101; 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Hello, kernel test robot noticed "WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture]" on: commit: 774c4d7adb4f9134aa265c5fee4e8b07d98c53cb ("rcutorture: Make rcutorture_one_extend() check reader state") https://github.com/paulmckrcu/linux dev.2024.12.11a in testcase: rcutorture version: with following parameters: runtime: 300s test: cpuhotplug torture_type: rcu config: i386-randconfig-001-20241220 compiler: clang-19 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +-----------------------------------------------------------------------------+------------+------------+ | | bb02a67f70 | 774c4d7adb | +-----------------------------------------------------------------------------+------------+------------+ | WARNING:at_kernel/rcu/rcutorture.c:#rcutorture_one_extend_check[rcutorture] | 0 | 6 | | EIP:rcutorture_one_extend_check | 0 | 6 | +-----------------------------------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202412241458.150d082b-lkp@intel.com The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20241224/202412241458.150d082b-lkp@intel.com [ 216.715283][ T904] ------------[ cut here ]------------ [ 216.715807][ T904] rcutorture_one_extend_check during change: Current 0x10 To add 0x10 To remove 0x0 [ 216.716750][ T904] WARNING: CPU: 0 PID: 904 at kernel/rcu/rcutorture.c:1907 rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture] [ 216.717867][ T904] Modules linked in: rcutorture(+) torture [ 216.718418][ T904] CPU: 0 UID: 0 PID: 904 Comm: rcu_torture_rea Not tainted 6.13.0-rc1-00040-g774c4d7adb4f #1 af41ae9ed56f032bf259b1a5e19207f049febebf [ 216.719655][ T904] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 216.720591][ T904] EIP: rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture] [ 216.721316][ T904] Code: 33 e9 88 f0 01 0f 85 19 ff ff ff c6 05 33 e9 88 f0 01 ff 75 0c 57 53 56 68 f0 70 90 f0 68 f8 7b 90 f0 e8 a9 ac 81 50 83 c4 18 <0f> 0b e9 f3 fe ff ff c6 05 2e e9 88 f0 01 ff 75 0c 57 53 56 68 f0 [ 216.723166][ T904] EAX: 00000000 EBX: 00000010 ECX: 00000000 EDX: 00000000 [ 216.723887][ T904] ESI: f090673c EDI: 00000010 EBP: bfba7d84 ESP: bfba7d70 [ 216.724539][ T904] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010292 [ 216.725236][ T904] CR0: 80050033 CR2: 37270010 CR3: 7a10e000 CR4: 000406d0 [ 216.725919][ T904] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 216.726581][ T904] DR6: fffe0ff0 DR7: 00000400 [ 216.727015][ T904] Call Trace: [ 216.727325][ T904] ? show_regs+0x5e/0x70 [ 216.727761][ T904] ? rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.728747][ T904] ? __warn+0xbc/0x230 [ 216.729128][ T904] ? rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.730100][ T904] ? rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.731092][ T904] ? report_bug+0xb8/0x170 [ 216.731558][ T904] ? exc_overflow+0x40/0x40 [ 216.732002][ T904] ? handle_bug+0x49/0x70 [ 216.732431][ T904] ? exc_invalid_op+0x24/0x50 [ 216.732855][ T904] ? handle_exception+0x14d/0x14d [ 216.733294][ T904] ? __pr_flush+0x4b/0x390 [ 216.733842][ T904] ? exc_overflow+0x40/0x40 [ 216.734283][ T904] ? rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.735278][ T904] ? exc_overflow+0x40/0x40 [ 216.735710][ T904] ? rcutorture_one_extend_check+0x1da/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.736707][ T904] rcutorture_one_extend+0x185/0x3d0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.737663][ T904] rcu_torture_one_read+0xbc/0x7b0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.738651][ T904] ? __mod_timer+0x27e/0x330 [ 216.746584][ T904] rcu_torture_reader+0xd9/0x1a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.749179][ T904] ? rcu_torture_boost_failed+0x200/0x200 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.751803][ T904] ? __kthread_parkme+0x41/0x90 [ 216.752973][ T904] kthread+0xda/0xf0 [ 216.753996][ T904] ? rcu_torture_fakewriter+0x3f0/0x3f0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.756499][ T904] ? kthreadd+0x120/0x120 [ 216.757734][ T904] ? kthreadd+0x120/0x120 [ 216.758682][ T904] ret_from_fork+0x2c/0x40 [ 216.759952][ T904] ret_from_fork_asm+0x12/0x20 [ 216.761040][ T904] entry_INT80_32+0x10d/0x10d [ 216.762389][ T904] irq event stamp: 515 [ 216.763447][ T904] hardirqs last enabled at (525): [<4111f4ef>] __console_unlock+0x5f/0x90 [ 216.767137][ T904] hardirqs last disabled at (542): [<4111f4d6>] __console_unlock+0x46/0x90 [ 216.769278][ T904] softirqs last enabled at (538): [<429843ea>] __do_softirq+0xa/0xe [ 216.771284][ T904] softirqs last disabled at (533): [<429843ea>] __do_softirq+0xa/0xe [ 216.773548][ T904] ---[ end trace 0000000000000000 ]--- [ 216.774848][ T904] ------------[ cut here ]------------ [ 216.776416][ T904] rcutorture_one_extend_check after change: Current 0x20 To add 0x20 To remove 0x4 [ 216.778844][ T904] WARNING: CPU: 0 PID: 904 at kernel/rcu/rcutorture.c:1904 rcutorture_one_extend_check+0x286/0x2a0 [rcutorture] [ 216.781764][ T904] Modules linked in: rcutorture(+) torture [ 216.783330][ T904] CPU: 0 UID: 0 PID: 904 Comm: rcu_torture_rea Tainted: G W 6.13.0-rc1-00040-g774c4d7adb4f #1 af41ae9ed56f032bf259b1a5e19207f049febebf [ 216.787364][ T904] Tainted: [W]=WARN [ 216.787735][ T904] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 216.788655][ T904] EIP: rcutorture_one_extend_check+0x286/0x2a0 [rcutorture] [ 216.789311][ T904] Code: 0f 84 12 ff ff ff e9 29 ff ff ff c6 05 32 e9 88 f0 01 ff 75 0c 57 53 56 68 f0 70 90 f0 68 f8 7b 90 f0 e8 fd ab 81 50 83 c4 18 <0f> 0b a1 14 a4 88 f0 e9 fe fe ff ff 00 00 00 00 00 00 00 00 00 00 [ 216.791093][ T904] EAX: 00000000 EBX: 00000020 ECX: 00000000 EDX: 00000000 [ 216.791732][ T904] ESI: f0905abc EDI: 00000020 EBP: bfba7d84 ESP: bfba7d70 [ 216.792366][ T904] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010292 [ 216.793054][ T904] CR0: 80050033 CR2: 37270010 CR3: 7a10e000 CR4: 000406d0 [ 216.793757][ T904] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 216.794425][ T904] DR6: fffe0ff0 DR7: 00000400 [ 216.794908][ T904] Call Trace: [ 216.795233][ T904] ? show_regs+0x5e/0x70 [ 216.795648][ T904] ? rcutorture_one_extend_check+0x286/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.796617][ T904] ? __warn+0xbc/0x230 [ 216.796983][ T904] ? rcutorture_one_extend_check+0x286/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.797941][ T904] ? rcutorture_one_extend_check+0x286/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.798994][ T904] ? report_bug+0xb8/0x170 [ 216.799451][ T904] ? exc_overflow+0x40/0x40 [ 216.799891][ T904] ? handle_bug+0x49/0x70 [ 216.800322][ T904] ? exc_invalid_op+0x24/0x50 [ 216.800793][ T904] ? handle_exception+0x14d/0x14d [ 216.801272][ T904] ? __pr_flush+0x4b/0x390 [ 216.801697][ T904] ? exc_overflow+0x40/0x40 [ 216.802126][ T904] ? rcutorture_one_extend_check+0x286/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.803118][ T904] ? exc_overflow+0x40/0x40 [ 216.803584][ T904] ? rcutorture_one_extend_check+0x286/0x2a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.804577][ T904] rcutorture_one_extend+0x382/0x3d0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.805520][ T904] rcu_torture_one_read+0x30d/0x7b0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.806431][ T904] rcu_torture_reader+0xd9/0x1a0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.807392][ T904] ? rcu_torture_boost_failed+0x200/0x200 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.808371][ T904] ? __kthread_parkme+0x41/0x90 [ 216.808823][ T904] kthread+0xda/0xf0 [ 216.809198][ T904] ? rcu_torture_fakewriter+0x3f0/0x3f0 [rcutorture 87513a79026a2b3af3a53e104b445ea32d45b3a4] [ 216.810157][ T904] ? kthreadd+0x120/0x120 [ 216.810574][ T904] ? kthreadd+0x120/0x120 [ 216.810983][ T904] ret_from_fork+0x2c/0x40 [ 216.811391][ T904] ret_from_fork_asm+0x12/0x20 [ 216.811834][ T904] entry_INT80_32+0x10d/0x10d [ 216.812322][ T904] irq event stamp: 1041 [ 216.812701][ T904] hardirqs last enabled at (1051): [<4111f4ef>] __console_unlock+0x5f/0x90 [ 216.813568][ T904] hardirqs last disabled at (1072): [<4111f4d6>] __console_unlock+0x46/0x90 [ 216.814320][ T904] softirqs last enabled at (1070): [<429843ea>] __do_softirq+0xa/0xe [ 216.815071][ T904] softirqs last disabled at (1061): [<429843ea>] __do_softirq+0xa/0xe [ 216.815802][ T904] ---[ end trace 0000000000000000 ]--- [ 216.817430][ T889] rcu-torture: Creating torture_shuffle task [ 216.818829][ T889] rcu-torture: Creating torture_stutter task --- /pkg/linux/i386-randconfig-001-20241220/clang-19/bb02a67f70d8d58c675403f1f716cf5885967918/.config 2024-12-23 12:46:05.807021581 +0800 +++ /pkg/linux/i386-randconfig-001-20241220/clang-19/774c4d7adb4f9134aa265c5fee4e8b07d98c53cb/.config 2024-12-23 14:26:59.938500419 +0800 @@ -5864,6 +5864,7 @@ CONFIG_PROVE_RCU=y CONFIG_TORTURE_TEST=m CONFIG_RCU_SCALE_TEST=m CONFIG_RCU_TORTURE_TEST=m +CONFIG_RCU_TORTURE_TEST_CHK_RDR_STATE=m # CONFIG_RCU_TORTURE_TEST_LOG_CPU is not set CONFIG_RCU_REF_SCALE_TEST=m CONFIG_RCU_CPU_STALL_TIMEOUT=21