TITLE: INFO: rcu detected stall in sched_ttwu_pending
ALT: stall in sched_ttwu_pending
TYPE: HANG

[  575.758025] INFO: rcu_sched detected stalls on CPUs/tasks:
[  575.764179] 	(detected by 1, t=300086 jiffies, g=27161, c=27160, q=118)
[  575.771051] All QSes seen, last rcu_sched kthread activity 300086 (4295238516-4294938430), jiffies_till_next_fqs=3, root ->qsmask 0x0
[  575.783183] swapper/1       R running task on cpu   1     0     0      1 0x00000008 0
[  575.791404]  0000000000000001 18186e061cc9dc83 ffff8801dab07c50 ffffffff816ecb37
[  575.799432]  ffff8801dab20880 0000000100042374 00000000ffff8f3e ffffffff83fca0c0
[  575.807415]  0000000000000003 ffff8801dab07c60 ffffffff816ed2bc ffff8801dab07d30
[  575.815434] Call Trace:
[  575.817998]  <IRQ>  [<ffffffff816ecb37>] _sched_show_task+0x31a/0x325
[  575.824729]  [<ffffffff816ed2bc>] sched_show_task+0x10/0x12
[  575.830434]  [<ffffffff816f7b9d>] rcu_check_callbacks.cold.76+0xbfa/0xc77
[  575.837357]  [<ffffffff814f2c8f>] update_process_times+0x3f/0x70
[  575.843494]  [<ffffffff8151c19a>] tick_sched_handle.isra.16+0x5a/0x100
[  575.850145]  [<ffffffff8151c84a>] tick_sched_timer+0x7a/0x130
[  575.856014]  [<ffffffff814f5dc5>] __hrtimer_run_queues+0x3a5/0xc50
[  575.894248]  [<ffffffff814f6fee>] hrtimer_interrupt+0x18e/0x400
[  575.900294]  [<ffffffff81297744>] local_apic_timer_interrupt+0x74/0x90
[  575.906949]  [<ffffffff81012dff>] smp_apic_timer_interrupt+0xdf/0x130
[  575.913516]  [<ffffffff81011c72>] smp_apic_timer_interrupt_entry_after_kaiser_bti+0x20/0x2e
[  575.929641]  [<ffffffff813dc8da>] sched_ttwu_pending+0x10a/0x200
[  575.941724]  [<ffffffff8144bdbe>] cpu_startup_entry+0x14e/0x990
[  575.974371]  [<ffffffff812946d5>] start_secondary+0x305/0x3e0
