[ 7869.642830] INFO: rcu_sched self-detected stall on CPU [ 7869.642835] INFO: rcu_sched self-detected stall on CPU [ 7869.642838] INFO: rcu_sched detected stalls on CPUs/tasks: [ 7869.642856] 2-...: (1 GPs behind) idle=19e/1/0 softirq=186944/186946 fqs=0 [ 7869.642862] 0-...: (0 ticks this GP) idle=612/1/0 softirq=237722/237722 fqs=0 [ 7869.642862] [ 7869.642867] 1-...: (1 ticks this GP) idle=51e/1/0 softirq=189710/189710 fqs=0 [ 7869.642870] (t=91053 jiffies g=88404 c=88403 q=6) [ 7869.642874] 2-...: (1 GPs behind) idle=19e/1/0 softirq=186944/186946 fqs=0 [ 7869.642879] rcu_sched kthread starved for 91053 jiffies! g88404 c88403 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x402 ->cpu=3 [ 7869.642879] [ 7869.642882] rcu_sched I [ 7869.642885] (detected by 3, t=91053 jiffies, g=88404, c=88403, q=6) [ 7869.642887] 0 8 2 0x00000000 [ 7869.642892] Sending NMI from CPU 3 to CPUs 0: [ 7869.642912] [] (__schedule) from [] (schedule+0x2f/0x68) [ 7869.642924] [] (schedule) from [] (schedule_timeout+0x75/0x314) [ 7869.642936] [] (schedule_timeout) from [] (rcu_gp_kthread+0x415/0x674) [ 7869.642949] [] (rcu_gp_kthread) from [] (kthread+0xfd/0x104) [ 7869.642960] [] (kthread) from [] (ret_from_fork+0x11/0x38) [ 7869.760843] 1-...: (1 ticks this GP) idle=51e/1/0 softirq=189710/189710 fqs=0 [ 7869.768146] (t=91053 jiffies g=88404 c=88403 q=6) [ 7869.773026] rcu_sched kthread starved for 91053 jiffies! g88404 c88403 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=2 [ 7869.783364] rcu_sched R running task 0 8 2 0x00000000 [ 7869.790417] [] (__schedule) from [] (schedule+0x2f/0x68) [ 7869.797465] [] (schedule) from [] (schedule_timeout+0x75/0x314) [ 7869.805122] [] (schedule_timeout) from [] (rcu_gp_kthread+0x415/0x674) [ 7869.813386] [] (rcu_gp_kthread) from [] (kthread+0xfd/0x104) [ 7869.820782] [] (kthread) from [] (ret_from_fork+0x11/0x38) [ 7879.642938] Sending NMI from CPU 3 to CPUs 1: [ 7889.647332] Sending NMI from CPU 3 to CPUs 2: [ 7899.651728] rcu_sched kthread starved for 91053 jiffies! g88404 c88403 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=2 [ 7899.651731] Sending NMI from CPU 2 to CPUs 0: [ 7899.666420] rcu_sched R running task 0 8 2 0x00000000 [ 7899.673474] [] (__schedule) from [] (schedule+0x2f/0x68) [ 7899.680522] [] (schedule) from [] (schedule_timeout+0x75/0x314) [ 7899.688179] [] (schedule_timeout) from [] (rcu_gp_kthread+0x415/0x674) [ 7899.696443] [] (rcu_gp_kthread) from [] (kthread+0xfd/0x104) [ 7899.703839] [] (kthread) from [] (ret_from_fork+0x11/0x38) [ 7909.651774] Sending NMI from CPU 2 to CPUs 1: [ 7919.656169] NMI backtrace for cpu 2 [ 7919.659658] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.14.18-sunxi #24 [ 7919.666265] Hardware name: Allwinner sun8i Family [ 7919.670974] [] (unwind_backtrace) from [] (show_stack+0x11/0x14) [ 7919.678718] [] (show_stack) from [] (dump_stack+0x69/0x78) [ 7919.685943] [] (dump_stack) from [] (nmi_cpu_backtrace+0xd3/0xd4) [ 7919.693775] [] (nmi_cpu_backtrace) from [] (nmi_trigger_cpumask_backtrace+0x97/0xd0) [ 7919.703254] [] (nmi_trigger_cpumask_backtrace) from [] (rcu_dump_cpu_stacks+0x77/0x94) [ 7919.712905] [] (rcu_dump_cpu_stacks) from [] (rcu_check_callbacks+0x4d5/0x690) [ 7919.721864] [] (rcu_check_callbacks) from [] (update_process_times+0x2b/0x48) [ 7919.730738] [] (update_process_times) from [] (tick_sched_timer+0x31/0x68) [ 7919.739348] [] (tick_sched_timer) from [] (__hrtimer_run_queues+0xf5/0x224) [ 7919.748045] [] (__hrtimer_run_queues) from [] (hrtimer_interrupt+0x81/0x180) [ 7919.756830] [] (hrtimer_interrupt) from [] (arch_timer_handler_phys+0x25/0x28) [ 7919.765790] [] (arch_timer_handler_phys) from [] (handle_percpu_devid_irq+0x57/0x19c) [ 7919.775357] [] (handle_percpu_devid_irq) from [] (generic_handle_irq+0x1d/0x28) [ 7919.784403] [] (generic_handle_irq) from [] (__handle_domain_irq+0x45/0x84) [ 7919.793101] [] (__handle_domain_irq) from [] (gic_handle_irq+0x39/0x68) [ 7919.801449] [] (gic_handle_irq) from [] (__irq_svc+0x65/0x94) [ 7919.808928] Exception stack(0xef123f78 to 0xef123fc0) [ 7919.813976] 3f60: 00000001 00000000 [ 7919.822151] 3f80: 00000000 c0116561 ffffe000 c0d03fcc c0d03f6c c0cb6438 c0ddd8eb 00000000 [ 7919.830325] 3fa0: 00000000 00000000 00000018 ef123fc8 c01070e7 c01070e8 40070033 ffffffff [ 7919.838501] [] (__irq_svc) from [] (arch_cpu_idle+0x28/0x2c) [ 7919.845899] [] (arch_cpu_idle) from [] (do_idle+0x115/0x16c) [ 7919.853296] [] (do_idle) from [] (cpu_startup_entry+0x19/0x1c) [ 7919.860865] [] (cpu_startup_entry) from [<401016f1>] (0x401016f1) [ 7919.867825] Sending NMI from CPU 1 to CPUs 0: [ 7929.872218] NMI backtrace for cpu 1 [ 7929.875705] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.14.18-sunxi #24 [ 7929.882312] Hardware name: Allwinner sun8i Family [ 7929.887017] [] (unwind_backtrace) from [] (show_stack+0x11/0x14) [ 7929.894759] [] (show_stack) from [] (dump_stack+0x69/0x78) [ 7929.901982] [] (dump_stack) from [] (nmi_cpu_backtrace+0xd3/0xd4) [ 7929.909812] [] (nmi_cpu_backtrace) from [] (nmi_trigger_cpumask_backtrace+0x97/0xd0) [ 7929.919290] [] (nmi_trigger_cpumask_backtrace) from [] (rcu_dump_cpu_stacks+0x77/0x94) [ 7929.928941] [] (rcu_dump_cpu_stacks) from [] (rcu_check_callbacks+0x4d5/0x690) [ 7929.937898] [] (rcu_check_callbacks) from [] (update_process_times+0x2b/0x48) [ 7929.946769] [] (update_process_times) from [] (tick_sched_timer+0x31/0x68) [ 7929.955378] [] (tick_sched_timer) from [] (__hrtimer_run_queues+0xf5/0x224) [ 7929.964074] [] (__hrtimer_run_queues) from [] (hrtimer_interrupt+0x81/0x180) [ 7929.972858] [] (hrtimer_interrupt) from [] (arch_timer_handler_phys+0x25/0x28) [ 7929.981815] [] (arch_timer_handler_phys) from [] (handle_percpu_devid_irq+0x57/0x19c) [ 7929.991381] [] (handle_percpu_devid_irq) from [] (generic_handle_irq+0x1d/0x28) [ 7930.000426] [] (generic_handle_irq) from [] (__handle_domain_irq+0x45/0x84) [ 7930.009123] [] (__handle_domain_irq) from [] (gic_handle_irq+0x39/0x68) [ 7930.017471] [] (gic_handle_irq) from [] (__irq_svc+0x65/0x94) [ 7930.024949] Exception stack(0xef121f78 to 0xef121fc0) [ 7930.029997] 1f60: 00000001 00000000 [ 7930.038171] 1f80: 00000000 c0116561 ffffe000 c0d03fcc c0d03f6c c0cb6438 c0ddd8eb 00000000 [ 7930.046346] 1fa0: 00000000 00000000 00000018 ef121fc8 c01070e7 c01070e8 40070033 ffffffff [ 7930.054522] [] (__irq_svc) from [] (arch_cpu_idle+0x28/0x2c) [ 7930.061918] [] (arch_cpu_idle) from [] (do_idle+0x115/0x16c) [ 7930.069313] [] (do_idle) from [] (cpu_startup_entry+0x19/0x1c) [ 7930.076881] [] (cpu_startup_entry) from [<401016f1>] (0x401016f1) [ 7930.083839] Sending NMI from CPU 1 to CPUs 2: [ 7940.088355] NMI backtrace for cpu 2 [ 7940.088360] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.14.18-sunxi #24 [ 7940.088362] Hardware name: Allwinner sun8i Family [ 7940.088365] task: ef0ff2c0 task.stack: ef122000 [ 7940.088370] PC is at __do_softirq+0x7a/0x25c [ 7940.088375] LR is at irq_exit+0x7f/0xc4 [ 7940.088378] pc : [] lr : [] psr: 40070133 [ 7940.088381] sp : ef123ee8 ip : 00001361 fp : 4000001f [ 7940.088383] r10: c0d02080 r9 : ef037400 r8 : 00000001 [ 7940.088387] r7 : ffffe000 r6 : 00000282 r5 : 00000000 r4 : ffffe000 [ 7940.088389] r3 : 00000080 r2 : 00000000 r1 : c0df6740 r0 : c0df6740 [ 7940.088394] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA Thumb Segment none [ 7940.088397] Control: 50c5387d Table: 49d6806a DAC: 00000051 [ 7940.088401] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.14.18-sunxi #24 [ 7940.088402] Hardware name: Allwinner sun8i Family [ 7940.088411] [] (unwind_backtrace) from [] (show_stack+0x11/0x14) [ 7940.088418] [] (show_stack) from [] (dump_stack+0x69/0x78) [ 7940.088426] [] (dump_stack) from [] (nmi_cpu_backtrace+0x8b/0xd4) [ 7940.088434] [] (nmi_cpu_backtrace) from [] (handle_IPI+0x75/0x278) [ 7940.088441] [] (handle_IPI) from [] (gic_handle_irq+0x67/0x68) [ 7940.088447] [] (gic_handle_irq) from [] (__irq_svc+0x65/0x94) [ 7940.088450] Exception stack(0xef123e98 to 0xef123ee0) [ 7940.088453] 3e80: c0df6740 c0df6740 [ 7940.088459] 3ea0: 00000000 00000080 ffffe000 00000000 00000282 ffffe000 00000001 ef037400 [ 7940.088465] 3ec0: c0d02080 4000001f 00001361 ef123ee8 c011ef27 c0101462 40070133 ffffffff [ 7940.088472] [] (__irq_svc) from [] (__do_softirq+0x7a/0x25c) [ 7940.088479] [] (__do_softirq) from [] (irq_exit+0x7f/0xc4) [ 7940.088488] [] (irq_exit) from [] (__handle_domain_irq+0x49/0x84) [ 7940.088496] [] (__handle_domain_irq) from [] (gic_handle_irq+0x39/0x68) [ 7940.088502] [] (gic_handle_irq) from [] (__irq_svc+0x65/0x94) [ 7940.088504] Exception stack(0xef123f78 to 0xef123fc0) [ 7940.088508] 3f60: 00000001 00000000 [ 7940.088514] 3f80: 00000000 c0116561 ffffe000 c0d03fcc c0d03f6c c0cb6438 c0ddd8eb 00000000 [ 7940.088520] 3fa0: 00000000 00000000 00000018 ef123fc8 c01070e7 c01070e8 40070033 ffffffff [ 7940.088527] [] (__irq_svc) from [] (arch_cpu_idle+0x28/0x2c) [ 7940.088536] [] (arch_cpu_idle) from [] (do_idle+0x115/0x16c) [ 7940.088543] [] (do_idle) from [] (cpu_startup_entry+0x19/0x1c) [ 7940.088550] [] (cpu_startup_entry) from [<401016f1>] (0x401016f1)