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Apr 2024 04:55:21 +0000 Date: Tue, 2 Apr 2024 12:55:12 +0800 From: kernel test robot To: Kairui Song CC: , , Linux Memory Management List , Andrew Morton , "Matthew Wilcox" , , , Subject: [linux-next:master] [lib/xarray] e6c71d0899: WARNING:suspicious_RCU_usage Message-ID: <202404021026.f28e44bb-lkp@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline X-ClientProxiedBy: SI2PR06CA0014.apcprd06.prod.outlook.com (2603:1096:4:186::11) To LV3PR11MB8603.namprd11.prod.outlook.com (2603:10b6:408:1b6::9) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: LV3PR11MB8603:EE_|SJ0PR11MB7153:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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fefnibWX5I4asreTAWWwvXICsKXyCKDici2avDjpPEv8tTawmu4SoI5QQIU8i+vOueKiy7LipUATqM2E6OA75g/O/VKPG3eS5ihbN X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "WARNING:suspicious_RCU_usage" on: commit: e6c71d0899e7b0e0b120dcc1ddb8613aa1e1cd93 ("lib/xarray: introduce a new helper xas_get_order") https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master [test failed on linux-next/master a6bd6c9333397f5a0e2667d4d82fef8c970108f2] in testcase: boot compiler: clang-17 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +---------------------------------------------------------------------+------------+------------+ | | 5fb1b791b3 | e6c71d0899 | +---------------------------------------------------------------------+------------+------------+ | WARNING:suspicious_RCU_usage | 0 | 6 | | include/linux/xarray.h:#suspicious_rcu_dereference_check()usage | 0 | 6 | | include/linux/xarray.h:#suspicious_rcu_dereference_protected()usage | 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/202404021026.f28e44bb-lkp@intel.com [ 86.993728][ T1] WARNING: suspicious RCU usage [ 86.994316][ T1] 6.9.0-rc1-00150-ge6c71d0899e7 #1 Tainted: G W T [ 86.995290][ T1] ----------------------------- [ 86.995922][ T1] include/linux/xarray.h:1201 suspicious rcu_dereference_check() usage! [ 86.997044][ T1] [ 86.997044][ T1] other info that might help us debug this: [ 86.997044][ T1] [ 86.998358][ T1] [ 86.998358][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 86.999400][ T1] no locks held by swapper/0/1. [ 87.000056][ T1] [ 87.000056][ T1] stack backtrace: [ 87.000880][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W T 6.9.0-rc1-00150-ge6c71d0899e7 #1 e72961bb2bc89a324b194b20c4b2a631d7a91742 [ 87.002620][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 87.003373][ T1] Call Trace: [ 87.003373][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 87.003373][ T1] dump_stack (lib/dump_stack.c:123) [ 87.003373][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 87.003373][ T1] xas_start (include/linux/xarray.h:?) [ 87.003373][ T1] xas_store (lib/xarray.c:237 lib/xarray.c:789) [ 87.006845][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 87.006845][ T1] xarray_checks (lib/test_xarray.c:2070) [ 87.006845][ T1] do_one_initcall (init/main.c:1238) [ 87.006845][ T1] ? xa_dump (lib/test_xarray.c:2054) [ 87.006845][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4599) [ 87.006845][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.006845][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.006845][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.006845][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.006845][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.006845][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.006845][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316) [ 87.006845][ T1] ? ktime_get (kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.014859][ T1] ? ktime_get (kernel/time/timekeeping.c:? kernel/time/timekeeping.c:255 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.014859][ T1] ? clockevents_program_event (kernel/time/clockevents.c:336) [ 87.014859][ T1] ? update_process_times (kernel/time/timer.c:2494) [ 87.014859][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.014859][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.014859][ T1] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:63) [ 87.014859][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.014859][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1043) [ 87.014859][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.014859][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1047) [ 87.014859][ T1] ? next_arg (lib/cmdline.c:273) [ 87.014859][ T1] ? parse_args (kernel/params.c:153) [ 87.022841][ T1] do_initcall_level (init/main.c:1299) [ 87.022841][ T1] ? kernel_init (init/main.c:1439) [ 87.022841][ T1] do_initcalls (init/main.c:1313) [ 87.022841][ T1] do_basic_setup (init/main.c:1336) [ 87.022841][ T1] kernel_init_freeable (init/main.c:1552) [ 87.022841][ T1] ? rest_init (init/main.c:1429) [ 87.022841][ T1] kernel_init (init/main.c:1439) [ 87.022841][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 87.022841][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 87.022841][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:944) [ 87.029403][ T1] [ 87.029696][ T1] ============================= [ 87.030321][ T1] WARNING: suspicious RCU usage [ 87.030934][ T1] 6.9.0-rc1-00150-ge6c71d0899e7 #1 Tainted: G W T [ 87.031864][ T1] ----------------------------- [ 87.032486][ T1] include/linux/xarray.h:1217 suspicious rcu_dereference_check() usage! [ 87.033492][ T1] [ 87.033492][ T1] other info that might help us debug this: [ 87.033492][ T1] [ 87.034805][ T1] [ 87.034805][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 87.035815][ T1] no locks held by swapper/0/1. [ 87.036445][ T1] [ 87.036445][ T1] stack backtrace: [ 87.037223][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W T 6.9.0-rc1-00150-ge6c71d0899e7 #1 e72961bb2bc89a324b194b20c4b2a631d7a91742 [ 87.038825][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 87.038825][ T1] Call Trace: [ 87.038825][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 87.038825][ T1] dump_stack (lib/dump_stack.c:123) [ 87.038825][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 87.038825][ T1] xas_descend (include/linux/xarray.h:?) [ 87.038825][ T1] xas_store (lib/xarray.c:244 lib/xarray.c:789) [ 87.038825][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 87.038825][ T1] xarray_checks (lib/test_xarray.c:2070) [ 87.038825][ T1] do_one_initcall (init/main.c:1238) [ 87.038825][ T1] ? xa_dump (lib/test_xarray.c:2054) [ 87.038825][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4599) [ 87.038825][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.046853][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.046853][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.046853][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.046853][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.046853][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.046853][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316) [ 87.046853][ T1] ? ktime_get (kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.046853][ T1] ? ktime_get (kernel/time/timekeeping.c:? kernel/time/timekeeping.c:255 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.046853][ T1] ? clockevents_program_event (kernel/time/clockevents.c:336) [ 87.046853][ T1] ? update_process_times (kernel/time/timer.c:2494) [ 87.046853][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.046853][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.054842][ T1] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:63) [ 87.054842][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.054842][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1043) [ 87.054842][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.054842][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1047) [ 87.054842][ T1] ? next_arg (lib/cmdline.c:273) [ 87.054842][ T1] ? parse_args (kernel/params.c:153) [ 87.054842][ T1] do_initcall_level (init/main.c:1299) [ 87.054842][ T1] ? kernel_init (init/main.c:1439) [ 87.054842][ T1] do_initcalls (init/main.c:1313) [ 87.054842][ T1] do_basic_setup (init/main.c:1336) [ 87.054842][ T1] kernel_init_freeable (init/main.c:1552) [ 87.054842][ T1] ? rest_init (init/main.c:1429) [ 87.062852][ T1] ? rest_init (init/main.c:1429) [ 87.062852][ T1] kernel_init (init/main.c:1439) [ 87.062852][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 87.062852][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 87.062852][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:944) [ 87.065984][ T1] [ 87.066262][ T1] ============================= [ 87.066890][ T1] WARNING: suspicious RCU usage [ 87.067483][ T1] 6.9.0-rc1-00150-ge6c71d0899e7 #1 Tainted: G W T [ 87.068496][ T1] ----------------------------- [ 87.069138][ T1] include/linux/xarray.h:1226 suspicious rcu_dereference_protected() usage! [ 87.070297][ T1] [ 87.070297][ T1] other info that might help us debug this: [ 87.070297][ T1] [ 87.071603][ T1] [ 87.071603][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 87.072655][ T1] no locks held by swapper/0/1. [ 87.073281][ T1] [ 87.073281][ T1] stack backtrace: [ 87.074029][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W T 6.9.0-rc1-00150-ge6c71d0899e7 #1 e72961bb2bc89a324b194b20c4b2a631d7a91742 [ 87.075575][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 87.075575][ T1] Call Trace: [ 87.075575][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 87.075575][ T1] dump_stack (lib/dump_stack.c:123) [ 87.075575][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 87.078848][ T1] xas_store (include/linux/xarray.h:?) [ 87.078848][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 87.078848][ T1] xarray_checks (lib/test_xarray.c:2070) [ 87.078848][ T1] do_one_initcall (init/main.c:1238) [ 87.078848][ T1] ? xa_dump (lib/test_xarray.c:2054) [ 87.078848][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4599) [ 87.078848][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.078848][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.078848][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.078848][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.078848][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.078848][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.086847][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316) [ 87.086847][ T1] ? ktime_get (kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.086847][ T1] ? ktime_get (kernel/time/timekeeping.c:? kernel/time/timekeeping.c:255 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.086847][ T1] ? clockevents_program_event (kernel/time/clockevents.c:336) [ 87.086847][ T1] ? update_process_times (kernel/time/timer.c:2494) [ 87.086847][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.086847][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.086847][ T1] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:63) [ 87.086847][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.086847][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1043) [ 87.086847][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.086847][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1047) [ 87.094846][ T1] ? next_arg (lib/cmdline.c:273) [ 87.094846][ T1] ? parse_args (kernel/params.c:153) [ 87.094846][ T1] do_initcall_level (init/main.c:1299) [ 87.094846][ T1] ? kernel_init (init/main.c:1439) [ 87.094846][ T1] do_initcalls (init/main.c:1313) [ 87.094846][ T1] do_basic_setup (init/main.c:1336) [ 87.094846][ T1] kernel_init_freeable (init/main.c:1552) [ 87.094846][ T1] ? rest_init (init/main.c:1429) [ 87.094846][ T1] kernel_init (init/main.c:1439) [ 87.094846][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 87.094846][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 87.094846][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:944) [ 87.102597][ T1] [ 87.102922][ T1] ============================= [ 87.103563][ T1] WARNING: suspicious RCU usage [ 87.104180][ T1] 6.9.0-rc1-00150-ge6c71d0899e7 #1 Tainted: G W T [ 87.105106][ T1] ----------------------------- [ 87.105698][ T1] include/linux/xarray.h:1242 suspicious rcu_dereference_protected() usage! [ 87.106878][ T1] [ 87.106878][ T1] other info that might help us debug this: [ 87.106878][ T1] [ 87.108138][ T1] [ 87.108138][ T1] rcu_scheduler_active = 2, debug_locks = 1 [ 87.109159][ T1] no locks held by swapper/0/1. [ 87.109742][ T1] [ 87.109742][ T1] stack backtrace: [ 87.110445][ T1] CPU: 1 PID: 1 Comm: swapper/0 Tainted: G W T 6.9.0-rc1-00150-ge6c71d0899e7 #1 e72961bb2bc89a324b194b20c4b2a631d7a91742 [ 87.110844][ T1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 87.110844][ T1] Call Trace: [ 87.110844][ T1] dump_stack_lvl (lib/dump_stack.c:116) [ 87.110844][ T1] dump_stack (lib/dump_stack.c:123) [ 87.110844][ T1] lockdep_rcu_suspicious (include/linux/context_tracking.h:122) [ 87.110844][ T1] xas_store (include/linux/xarray.h:? lib/xarray.c:759 lib/xarray.c:844) [ 87.110844][ T1] check_xas_get_order (lib/test_xarray.c:?) [ 87.110844][ T1] xarray_checks (lib/test_xarray.c:2070) [ 87.110844][ T1] do_one_initcall (init/main.c:1238) [ 87.110844][ T1] ? xa_dump (lib/test_xarray.c:2054) [ 87.110844][ T1] ? __lock_acquire (kernel/locking/lockdep.c:4599) [ 87.118849][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.118849][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.118849][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.118849][ T1] ? kvm_sched_clock_read (arch/x86/kernel/kvmclock.c:91) [ 87.118849][ T1] ? sched_clock_noinstr (arch/x86/kernel/tsc.c:266) [ 87.118849][ T1] ? local_clock_noinstr (kernel/sched/clock.c:269 kernel/sched/clock.c:306) [ 87.118849][ T1] ? local_clock (arch/x86/include/asm/preempt.h:84 kernel/sched/clock.c:316) [ 87.118849][ T1] ? ktime_get (kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:254 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.118849][ T1] ? ktime_get (kernel/time/timekeeping.c:? kernel/time/timekeeping.c:255 kernel/time/timekeeping.c:388 kernel/time/timekeeping.c:848) [ 87.118849][ T1] ? clockevents_program_event (kernel/time/clockevents.c:336) [ 87.118849][ T1] ? update_process_times (kernel/time/timer.c:2494) [ 87.118849][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.118849][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.126855][ T1] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:63) [ 87.126855][ T1] ? irqentry_exit (kernel/entry/common.c:?) [ 87.126855][ T1] ? sysvec_call_function_single (arch/x86/kernel/apic/apic.c:1043) [ 87.126855][ T1] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) [ 87.126855][ T1] ? handle_exception (arch/x86/entry/entry_32.S:1047) [ 87.126855][ T1] ? next_arg (lib/cmdline.c:273) [ 87.126855][ T1] ? parse_args (kernel/params.c:153) [ 87.126855][ T1] do_initcall_level (init/main.c:1299) [ 87.126855][ T1] ? kernel_init (init/main.c:1439) [ 87.126855][ T1] do_initcalls (init/main.c:1313) [ 87.134850][ T1] do_basic_setup (init/main.c:1336) [ 87.134850][ T1] kernel_init_freeable (init/main.c:1552) [ 87.134850][ T1] ? rest_init (init/main.c:1429) [ 87.134850][ T1] kernel_init (init/main.c:1439) [ 87.134850][ T1] ret_from_fork (arch/x86/kernel/process.c:153) [ 87.134850][ T1] ret_from_fork_asm (arch/x86/entry/entry_32.S:737) [ 87.134850][ T1] entry_INT80_32 (arch/x86/entry/entry_32.S:944) The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240402/202404021026.f28e44bb-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki