[ 1703.874087] INFO: rcu_preempt self-detected stall on CPU [ 1703.879435] 0-...: (108435 ticks this GP) idle=7b6/140000000000002/0 softirq=20675/20675 fqs=0 [ 1703.888255] (t=109251 jiffies g=14782 c=14781 q=2) [ 1703.893253] rcu_preempt kthread starved for 109251 jiffies! g14782 c14781 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 1703.903907] rcu_preempt R running task 0 8 2 0x00000000 [ 1703.910992] Backtrace: [ 1703.913465] [] (__schedule) from [] (schedule+0x58/0xc4) [ 1703.920551] r10:c0d14d50 r9:00000003 r8:c0d15400 r7:c0d15440 r6:cf05bee8 r5:c0d15440 [ 1703.928415] r4:ffffe000 [ 1703.930968] [] (schedule) from [] (schedule_timeout+0x184/0x264) [ 1703.938746] r5:c0d15440 r4:000079a1 [ 1703.942345] [] (schedule_timeout) from [] (rcu_gp_kthread+0x688/0xaa4) [ 1703.950650] r8:00000001 r7:c0d14e0c r6:c0d15400 r5:ffffe000 r4:00000001 [ 1703.957388] [] (rcu_gp_kthread) from [] (kthread+0x15c/0x164) [ 1703.964903] r7:cf05a000 [ 1703.967455] [] (kthread) from [] (ret_from_fork+0x14/0x2c) [ 1703.974716] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0145bf0 [ 1703.982579] r4:cf030740 [ 1703.985123] Task dump for CPU 0: [ 1703.988363] uart split R running task 0 219 110 0x00000002 [ 1703.995448] Backtrace: [ 1703.997919] [] (dump_backtrace) from [] (show_stack+0x18/0x1c) [ 1704.005525] r7:c0d14d50 r6:c0d03104 r5:0000006e r4:ce112400 [ 1704.011220] [] (show_stack) from [] (sched_show_task.part.9+0xc4/0xdc) [ 1704.019529] [] (sched_show_task.part.9) from [] (dump_cpu_task+0x38/0x3c) [ 1704.028092] r5:00000000 r4:c0d14d50 [ 1704.031690] [] (dump_cpu_task) from [] (rcu_dump_cpu_stacks+0x90/0xd0) [ 1704.039999] [] (rcu_dump_cpu_stacks) from [] (rcu_check_callbacks+0x5c4/0x8f0) [ 1704.049004] r10:c0d030f8 r9:c0d03104 r8:c0d15400 r7:00000000 r6:c0d14d50 r5:c0d14d50 [ 1704.056869] r4:c0d15198 r3:ce0d8000 [ 1704.060469] [] (rcu_check_callbacks) from [] (update_process_times+0x3c/0x64) [ 1704.069387] r10:c018ecb4 r9:00000000 r8:00000001 r7:0000018c r6:00000000 r5:ce112400 [ 1704.077251] r4:ffffe000 [ 1704.079803] [] (update_process_times) from [] (tick_sched_handle+0x5c/0x60) [ 1704.088543] r7:0000018c r6:b6914099 r5:ce0d9eb0 r4:c0d16c80 [ 1704.094233] [] (tick_sched_handle) from [] (tick_sched_timer+0x64/0xd0) [ 1704.102629] [] (tick_sched_timer) from [] (__hrtimer_run_queues.constprop.5+0x150/0x1e8) [ 1704.112504] r7:ffffe000 r6:c0d165c0 r5:c0d16c80 r4:c0d16580 [ 1704.118199] [] (__hrtimer_run_queues.constprop.5) from [] (hrtimer_interrupt+0x9c/0x248) [ 1704.128077] r10:c0d16638 r9:c0d16580 r8:ffffffff r7:7fffffff r6:00000003 r5:ffffe000 [ 1704.135941] r4:c0d16580 [ 1704.138495] [] (hrtimer_interrupt) from [] (omap2_gp_timer_interrupt+0x30/0x38) [ 1704.147589] r10:c0d4fcc0 r9:cf006200 r8:00000010 r7:ce0d9e14 r6:00000000 r5:cf006200 [ 1704.155452] r4:c0d07f80 [ 1704.158006] [] (omap2_gp_timer_interrupt) from [] (__handle_irq_event_percpu+0x6c/0x140) [ 1704.167887] [] (__handle_irq_event_percpu) from [] (handle_irq_event_percpu+0x24/0x60) [ 1704.177591] r10:bea93854 r9:ce0d8000 r8:cf008000 r7:ce0d9fb0 r6:00000000 r5:cf006200 [ 1704.185454] r4:cf006200 [ 1704.188008] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x64/0x90) [ 1704.196920] r5:00000010 r4:cf006200 [ 1704.200519] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x158) [ 1704.208908] r5:00000010 r4:cf006200 [ 1704.212506] [] (handle_level_irq) from [] (generic_handle_irq+0x2c/0x3c) [ 1704.220981] r5:00000010 r4:c0d4e71c [ 1704.224581] [] (generic_handle_irq) from [] (__handle_domain_irq+0x5c/0xb0) [ 1704.233326] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1704.242244] r9:ce0d8000 r8:cf008000 r7:ce0d9ee4 r6:ffffffff r5:60000113 r4:c0d834b0 [ 1704.250028] [] (omap_intc_handle_irq) from [] (__irq_svc+0x6c/0xa8) [ 1704.258066] Exception stack(0xce0d9eb0 to 0xce0d9ef8) [ 1704.263145] 9ea0: c0d51c40 00404040 c0d51c00 00000000 [ 1704.271367] 9ec0: 00000202 00000010 00000000 ffffe000 cf008000 c0d51c40 bea93854 ce0d9f5c [ 1704.279586] 9ee0: ce0d9f60 ce0d9f00 c012c4e8 c0101554 60000113 ffffffff [ 1704.286230] r5:60000113 r4:c0101554 [ 1704.289829] [] (__do_softirq) from [] (irq_exit+0x120/0x154) [ 1704.297263] r10:bea93854 r9:b624ffa0 r8:cf008000 r7:00000000 r6:00000000 r5:00000010 [ 1704.305127] r4:c0d4e71c [ 1704.307680] [] (irq_exit) from [] (__handle_domain_irq+0x60/0xb0) [ 1704.315553] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1704.324472] r9:b624ffa0 r8:10c53c7d r7:10c5387d r6:ffffffff r5:40000010 r4:c0d834b0 [ 1704.332255] [] (omap_intc_handle_irq) from [] (__irq_usr+0x54/0x80) [ 1704.340294] Exception stack(0xce0d9fb0 to 0xce0d9ff8) [ 1704.345372] 9fa0: 00000000 00000000 b62504e4 00000000 [ 1704.353592] 9fc0: 00000076 b6f03980 00000000 00000000 00000000 b624ffa0 bea93854 b624fdbc [ 1704.361812] 9fe0: 00000000 b624fd5c b6b37dec b6a66bc0 40000010 ffffffff [ 1704.368455] r5:40000010 r4:b6a66bc0 [ 1766.904085] INFO: rcu_preempt self-detected stall on CPU [ 1766.909433] 0-...: (114690 ticks this GP) idle=7b6/140000000000002/0 softirq=20675/20675 fqs=0 [ 1766.918254] (t=115554 jiffies g=14782 c=14781 q=2) [ 1766.923251] rcu_preempt kthread starved for 115554 jiffies! g14782 c14781 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 1766.933905] rcu_preempt R running task 0 8 2 0x00000000 [ 1766.940991] Backtrace: [ 1766.943464] [] (__schedule) from [] (schedule+0x58/0xc4) [ 1766.950550] r10:c0d14d50 r9:00000003 r8:c0d15400 r7:c0d15440 r6:cf05bee8 r5:c0d15440 [ 1766.958414] r4:ffffe000 [ 1766.960966] [] (schedule) from [] (schedule_timeout+0x184/0x264) [ 1766.968744] r5:c0d15440 r4:000079a1 [ 1766.972343] [] (schedule_timeout) from [] (rcu_gp_kthread+0x688/0xaa4) [ 1766.980650] r8:00000001 r7:c0d14e0c r6:c0d15400 r5:ffffe000 r4:00000001 [ 1766.987388] [] (rcu_gp_kthread) from [] (kthread+0x15c/0x164) [ 1766.994903] r7:cf05a000 [ 1766.997455] [] (kthread) from [] (ret_from_fork+0x14/0x2c) [ 1767.004716] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0145bf0 [ 1767.012580] r4:cf030740 [ 1767.015123] Task dump for CPU 0: [ 1767.018363] uart split R running task 0 219 110 0x00000002 [ 1767.025449] Backtrace: [ 1767.027920] [] (dump_backtrace) from [] (show_stack+0x18/0x1c) [ 1767.035527] r7:c0d14d50 r6:c0d03104 r5:0000006e r4:ce112400 [ 1767.041221] [] (show_stack) from [] (sched_show_task.part.9+0xc4/0xdc) [ 1767.049529] [] (sched_show_task.part.9) from [] (dump_cpu_task+0x38/0x3c) [ 1767.058093] r5:00000000 r4:c0d14d50 [ 1767.061691] [] (dump_cpu_task) from [] (rcu_dump_cpu_stacks+0x90/0xd0) [ 1767.070001] [] (rcu_dump_cpu_stacks) from [] (rcu_check_callbacks+0x5c4/0x8f0) [ 1767.079005] r10:c0d030f8 r9:c0d03104 r8:c0d15400 r7:00000000 r6:c0d14d50 r5:c0d14d50 [ 1767.086871] r4:c0d15198 r3:ce0d8000 [ 1767.090472] [] (rcu_check_callbacks) from [] (update_process_times+0x3c/0x64) [ 1767.099390] r10:c018ecb4 r9:00000000 r8:00000001 r7:0000019b r6:00000000 r5:ce112400 [ 1767.107253] r4:ffffe000 [ 1767.109805] [] (update_process_times) from [] (tick_sched_handle+0x5c/0x60) [ 1767.118546] r7:0000019b r6:6372b2cd r5:ce0d9eb0 r4:c0d16c80 [ 1767.124236] [] (tick_sched_handle) from [] (tick_sched_timer+0x64/0xd0) [ 1767.132633] [] (tick_sched_timer) from [] (__hrtimer_run_queues.constprop.5+0x150/0x1e8) [ 1767.142508] r7:ffffe000 r6:c0d165c0 r5:c0d16c80 r4:c0d16580 [ 1767.148202] [] (__hrtimer_run_queues.constprop.5) from [] (hrtimer_interrupt+0x9c/0x248) [ 1767.158079] r10:c0d16638 r9:c0d16580 r8:ffffffff r7:7fffffff r6:00000003 r5:ffffe000 [ 1767.165943] r4:c0d16580 [ 1767.168497] [] (hrtimer_interrupt) from [] (omap2_gp_timer_interrupt+0x30/0x38) [ 1767.177590] r10:c0d4fcc0 r9:cf006200 r8:00000010 r7:ce0d9e14 r6:00000000 r5:cf006200 [ 1767.185453] r4:c0d07f80 [ 1767.188009] [] (omap2_gp_timer_interrupt) from [] (__handle_irq_event_percpu+0x6c/0x140) [ 1767.197891] [] (__handle_irq_event_percpu) from [] (handle_irq_event_percpu+0x24/0x60) [ 1767.207594] r10:bea93854 r9:ce0d8000 r8:cf008000 r7:ce0d9fb0 r6:00000000 r5:cf006200 [ 1767.215457] r4:cf006200 [ 1767.218012] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x64/0x90) [ 1767.226924] r5:00000010 r4:cf006200 [ 1767.230525] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x158) [ 1767.238914] r5:00000010 r4:cf006200 [ 1767.242512] [] (handle_level_irq) from [] (generic_handle_irq+0x2c/0x3c) [ 1767.250989] r5:00000010 r4:c0d4e71c [ 1767.254588] [] (generic_handle_irq) from [] (__handle_domain_irq+0x5c/0xb0) [ 1767.263333] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1767.272251] r9:ce0d8000 r8:cf008000 r7:ce0d9ee4 r6:ffffffff r5:60000113 r4:c0d834b0 [ 1767.280035] [] (omap_intc_handle_irq) from [] (__irq_svc+0x6c/0xa8) [ 1767.288073] Exception stack(0xce0d9eb0 to 0xce0d9ef8) [ 1767.293151] 9ea0: c0d51c40 00404040 c0d51c00 00000000 [ 1767.301373] 9ec0: 00000202 00000010 00000000 ffffe000 cf008000 c0d51c40 bea93854 ce0d9f5c [ 1767.309592] 9ee0: ce0d9f60 ce0d9f00 c012c4e8 c0101554 60000113 ffffffff [ 1767.316236] r5:60000113 r4:c0101554 [ 1767.319834] [] (__do_softirq) from [] (irq_exit+0x120/0x154) [ 1767.327269] r10:bea93854 r9:b624ffa0 r8:cf008000 r7:00000000 r6:00000000 r5:00000010 [ 1767.335133] r4:c0d4e71c [ 1767.337686] [] (irq_exit) from [] (__handle_domain_irq+0x60/0xb0) [ 1767.345559] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1767.354477] r9:b624ffa0 r8:10c53c7d r7:10c5387d r6:ffffffff r5:40000010 r4:c0d834b0 [ 1767.362259] [] (omap_intc_handle_irq) from [] (__irq_usr+0x54/0x80) [ 1767.370299] Exception stack(0xce0d9fb0 to 0xce0d9ff8) [ 1767.375376] 9fa0: 00000000 00000000 b62504e4 00000000 [ 1767.383598] 9fc0: 00000076 b6f03980 00000000 00000000 00000000 b624ffa0 bea93854 b624fdbc [ 1767.391817] 9fe0: 00000000 b624fd5c b6b37dec b6a66bc0 40000010 ffffffff [ 1767.398460] r5:40000010 r4:b6a66bc0 [ 1829.934083] INFO: rcu_preempt self-detected stall on CPU [ 1829.939434] 0-...: (120945 ticks this GP) idle=7b6/140000000000002/0 softirq=20675/20675 fqs=0 [ 1829.948254] (t=121857 jiffies g=14782 c=14781 q=2) [ 1829.953252] rcu_preempt kthread starved for 121857 jiffies! g14782 c14781 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 [ 1829.963906] rcu_preempt R running task 0 8 2 0x00000000 [ 1829.970992] Backtrace: [ 1829.973463] [] (__schedule) from [] (schedule+0x58/0xc4) [ 1829.980551] r10:c0d14d50 r9:00000003 r8:c0d15400 r7:c0d15440 r6:cf05bee8 r5:c0d15440 [ 1829.988415] r4:ffffe000 [ 1829.990968] [] (schedule) from [] (schedule_timeout+0x184/0x264) [ 1829.998745] r5:c0d15440 r4:000079a1 [ 1830.002345] [] (schedule_timeout) from [] (rcu_gp_kthread+0x688/0xaa4) [ 1830.010650] r8:00000001 r7:c0d14e0c r6:c0d15400 r5:ffffe000 r4:00000001 [ 1830.017389] [] (rcu_gp_kthread) from [] (kthread+0x15c/0x164) [ 1830.024903] r7:cf05a000 [ 1830.027457] [] (kthread) from [] (ret_from_fork+0x14/0x2c) [ 1830.034718] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0145bf0 [ 1830.042581] r4:cf030740 [ 1830.045125] Task dump for CPU 0: [ 1830.048364] uart split R running task 0 219 110 0x00000002 [ 1830.055450] Backtrace: [ 1830.057920] [] (dump_backtrace) from [] (show_stack+0x18/0x1c) [ 1830.065527] r7:c0d14d50 r6:c0d03104 r5:0000006e r4:ce112400 [ 1830.071222] [] (show_stack) from [] (sched_show_task.part.9+0xc4/0xdc) [ 1830.079530] [] (sched_show_task.part.9) from [] (dump_cpu_task+0x38/0x3c) [ 1830.088094] r5:00000000 r4:c0d14d50 [ 1830.091692] [] (dump_cpu_task) from [] (rcu_dump_cpu_stacks+0x90/0xd0) [ 1830.100000] [] (rcu_dump_cpu_stacks) from [] (rcu_check_callbacks+0x5c4/0x8f0) [ 1830.109006] r10:c0d030f8 r9:c0d03104 r8:c0d15400 r7:00000000 r6:c0d14d50 r5:c0d14d50 [ 1830.116871] r4:c0d15198 r3:ce0d8000 [ 1830.120472] [] (rcu_check_callbacks) from [] (update_process_times+0x3c/0x64) [ 1830.129390] r10:c018ecb4 r9:00000000 r8:00000001 r7:000001aa r6:00000000 r5:ce112400 [ 1830.137254] r4:ffffe000 [ 1830.139805] [] (update_process_times) from [] (tick_sched_handle+0x5c/0x60) [ 1830.148546] r7:000001aa r6:1054279c r5:ce0d9eb0 r4:c0d16c80 [ 1830.154236] [] (tick_sched_handle) from [] (tick_sched_timer+0x64/0xd0) [ 1830.162633] [] (tick_sched_timer) from [] (__hrtimer_run_queues.constprop.5+0x150/0x1e8) [ 1830.172508] r7:ffffe000 r6:c0d165c0 r5:c0d16c80 r4:c0d16580 [ 1830.178204] [] (__hrtimer_run_queues.constprop.5) from [] (hrtimer_interrupt+0x9c/0x248) [ 1830.188081] r10:c0d16638 r9:c0d16580 r8:ffffffff r7:7fffffff r6:00000003 r5:ffffe000 [ 1830.195945] r4:c0d16580 [ 1830.198501] [] (hrtimer_interrupt) from [] (omap2_gp_timer_interrupt+0x30/0x38) [ 1830.207593] r10:c0d4fcc0 r9:cf006200 r8:00000010 r7:ce0d9e14 r6:00000000 r5:cf006200 [ 1830.215456] r4:c0d07f80 [ 1830.218012] [] (omap2_gp_timer_interrupt) from [] (__handle_irq_event_percpu+0x6c/0x140) [ 1830.227893] [] (__handle_irq_event_percpu) from [] (handle_irq_event_percpu+0x24/0x60) [ 1830.237597] r10:bea93854 r9:ce0d8000 r8:cf008000 r7:ce0d9fb0 r6:00000000 r5:cf006200 [ 1830.245461] r4:cf006200 [ 1830.248015] [] (handle_irq_event_percpu) from [] (handle_irq_event+0x64/0x90) [ 1830.256927] r5:00000010 r4:cf006200 [ 1830.260525] [] (handle_irq_event) from [] (handle_level_irq+0xb4/0x158) [ 1830.268915] r5:00000010 r4:cf006200 [ 1830.272514] [] (handle_level_irq) from [] (generic_handle_irq+0x2c/0x3c) [ 1830.280989] r5:00000010 r4:c0d4e71c [ 1830.284589] [] (generic_handle_irq) from [] (__handle_domain_irq+0x5c/0xb0) [ 1830.293333] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1830.302251] r9:ce0d8000 r8:cf008000 r7:ce0d9ee4 r6:ffffffff r5:60000113 r4:c0d834b0 [ 1830.310035] [] (omap_intc_handle_irq) from [] (__irq_svc+0x6c/0xa8) [ 1830.318074] Exception stack(0xce0d9eb0 to 0xce0d9ef8) [ 1830.323152] 9ea0: c0d51c40 00404040 c0d51c00 00000000 [ 1830.331375] 9ec0: 00000202 00000010 00000000 ffffe000 cf008000 c0d51c40 bea93854 ce0d9f5c [ 1830.339593] 9ee0: ce0d9f60 ce0d9f00 c012c4e8 c0101554 60000113 ffffffff [ 1830.346238] r5:60000113 r4:c0101554 [ 1830.349836] [] (__do_softirq) from [] (irq_exit+0x120/0x154) [ 1830.357271] r10:bea93854 r9:b624ffa0 r8:cf008000 r7:00000000 r6:00000000 r5:00000010 [ 1830.365134] r4:c0d4e71c [ 1830.367688] [] (irq_exit) from [] (__handle_domain_irq+0x60/0xb0) [ 1830.375560] [] (__handle_domain_irq) from [] (omap_intc_handle_irq+0x3c/0x98) [ 1830.384478] r9:b624ffa0 r8:10c53c7d r7:10c5387d r6:ffffffff r5:40000010 r4:c0d834b0 [ 1830.392260] [] (omap_intc_handle_irq) from [] (__irq_usr+0x54/0x80) [ 1830.400299] Exception stack(0xce0d9fb0 to 0xce0d9ff8) [ 1830.405378] 9fa0: 00000000 00000000 b62504e4 00000000 [ 1830.413599] 9fc0: 00000076 b6f03980 00000000 00000000 00000000 b624ffa0 bea93854 b624fdbc [ 1830.421819] 9fe0: 00000000 b624fd5c b6b37dec b6a66bc0 40000010 ffffffff [ 1830.428462] r5:40000010 r4:b6a66bc0