INFO: rcu_sched self-detected stall on CPU { 0}  (t=2100 jiffies g=250 c=249 q=21)
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.16.0-g2067793 #1
[<8001864c>] (unwind_backtrace) from [<800132c0>] (show_stack+0x20/0x24)
[<800132c0>] (show_stack) from [<804fd5c8>] (dump_stack+0x8c/0x9c)
[<804fd5c8>] (dump_stack) from [<80076664>] (rcu_check_callbacks+0x470/0x908)
[<80076664>] (rcu_check_callbacks) from [<80033ab4>] (update_process_times+0x50/0x70)
[<80033ab4>] (update_process_times) from [<80082324>] (tick_sched_timer+0x80/0x23c)
[<80082324>] (tick_sched_timer) from [<80049970>] (__run_hrtimer+0x90/0x1bc)
[<80049970>] (__run_hrtimer) from [<8004a3f8>] (hrtimer_interrupt+0x140/0x310)
[<8004a3f8>] (hrtimer_interrupt) from [<80016e3c>] (twd_handler+0x44/0x54)
[<80016e3c>] (twd_handler) from [<8006eedc>] (handle_percpu_devid_irq+0x90/0x124)
[<8006eedc>] (handle_percpu_devid_irq) from [<8006ac60>] (generic_handle_irq+0x3c/0x4c)
[<8006ac60>] (generic_handle_irq) from [<8000fbd8>] (handle_IRQ+0x50/0xa0)
[<8000fbd8>] (handle_IRQ) from [<80008644>] (gic_handle_irq+0x3c/0x6c)
[<80008644>] (gic_handle_irq) from [<80013ec0>] (__irq_svc+0x40/0x50)
Exception stack(0x8075de30 to 0x8075de78)
de20:                                     00000001 ffffb51c 00000000 00000000
de40: 8075ab30 0000001d 00000282 fee00100 80504ef4 8079fd70 00000000 8075dedc
de60: 807a2d40 8075de78 807a2d40 8002b734 200f0113 ffffffff
[<80013ec0>] (__irq_svc) from [<8002b734>] (__do_softirq+0xe0/0x318)
[<8002b734>] (__do_softirq) from [<8002bc0c>] (irq_exit+0x88/0xc0)
[<8002bc0c>] (irq_exit) from [<8000fbdc>] (handle_IRQ+0x54/0xa0)
[<8000fbdc>] (handle_IRQ) from [<80008644>] (gic_handle_irq+0x3c/0x6c)
[<80008644>] (gic_handle_irq) from [<80013ec0>] (__irq_svc+0x40/0x50)
Exception stack(0x8075df38 to 0x8075df80)
df20:                                                       bf7d0440 00000000
df40: 0002c554 00000000 8075c000 ffffffff 807a0324 8076446c 80504ef4 8079fb7a
df60: 00000000 8075df8c 8075df90 8075df80 8000ff50 8000ff54 600f0013 ffffffff
[<80013ec0>] (__irq_svc) from [<8000ff54>] (arch_cpu_idle+0x3c/0x40)
[<8000ff54>] (arch_cpu_idle) from [<80062308>] (cpu_startup_entry+0x124/0x1ec)
[<80062308>] (cpu_startup_entry) from [<804f9420>] (rest_init+0x84/0x88)
[<804f9420>] (rest_init) from [<806f9c5c>] (start_kernel+0x394/0x3a0)