root@linaro-alip:~# [   31.601000] irq 120: nobody cared (try booting with the "irqpoll" option)
[   31.601622] CPU: 0 PID: 122 Comm: irq/120-rk808 Not tainted 4.4.126 #0
[   31.602201] Hardware name: Rockchip RK3399 Excavator Board (Linux Opensource) (DT)
[   31.602863] Call trace:
[   31.603106] [<ffffff8008088870>] dump_backtrace+0x0/0x220
[   31.603586] [<ffffff8008088ab4>] show_stack+0x24/0x30
[   31.604042] [<ffffff800839ceac>] dump_stack+0x94/0xbc
[   31.604498] [<ffffff80080f2134>] __report_bad_irq+0x44/0xe0
[   31.604999] [<ffffff80080f23c0>] note_interrupt+0x124/0x290
[   31.605500] [<ffffff80080ef80c>] handle_irq_event_percpu+0x74/0x1fc
[   31.606058] [<ffffff80080ef9e4>] handle_irq_event+0x50/0x80
[   31.606558] [<ffffff80080f3134>] handle_level_irq+0xfc/0x120
[   31.607059] [<ffffff80080eed8c>] generic_handle_irq+0x2c/0x44
[   31.607573] [<ffffff80083d7fec>] rockchip_irq_demux+0x16c/0x1ec
[   31.608097] [<ffffff80080eed8c>] generic_handle_irq+0x2c/0x44
[   31.608608] [<ffffff80080ef10c>] __handle_domain_irq+0xb4/0xb8
[   31.609131] [<ffffff8008080e68>] gic_handle_irq+0xb8/0x184
[   31.609618] Exception stack(0xffffffc0ee333bd0 to 0xffffffc0ee333d00)
[   31.610188] 3bc0:                                   00000000000093e8 0000000000000000
[   31.610876] 3be0: 00000040eee59000 0000000000000000 ffffffc0ee328500 0000000044500079
[   31.611564] 3c00: 000000000000f536 0000000000000000 ffffffc0ee1131a0 ffffffc0ee333940
[   31.612252] 3c20: 0000000000000980 0000000000000001 0000000000000001 0000000000005f26
[   31.612939] 3c40: 00000000fa83b2da 000000000000000e 0000000075e5a69a 000000000000000c
[   31.613627] 3c60: 000000008f402d72 ffffffc0ee8c7ea0 ffffffc0ee8c7e20 ffffffc0ee8c7ea0
[   31.614315] 3c80: ffffffc0ee92b400 ffffff800920d5cc ffffffc0ee92b440 ffffffc0ee1127c0
[   31.615002] 3ca0: 0000000000000001 ffffffc0ee1127c0 0000000000000001 ffffffc0ee333d00
[   31.615690] 3cc0: ffffff8008b72b30 ffffffc0ee333d00 ffffff8008b72b34 0000000060000145
[   31.616378] 3ce0: ffffffc0ee333d00 ffffff8008b72b30 ffffffffffffffff ffffffc0ee8c7e20
[   31.617065] [<ffffff80080827b4>] el1_irq+0xb4/0x140
[   31.617510] [<ffffff8008b72b34>] _raw_spin_unlock_irq+0x24/0x30
[   31.618035] [<ffffff80080f0730>] irq_finalize_oneshot+0xc8/0xec
[   31.618558] [<ffffff80080f0794>] irq_thread_fn+0x40/0x54
[   31.619034] [<ffffff80080f0af8>] irq_thread+0x180/0x1b8
[   31.619500] [<ffffff80080b8c94>] kthread+0xdc/0xec
[   31.619930] [<ffffff8008082ef0>] ret_from_fork+0x10/0x20
[   31.620403] handlers:
[   31.620611] [<ffffff80080efa7c>] irq_default_primary_handler threaded [<ffffff800854544c>] regmap_irq_thread
[   31.621491] Disabling IRQ #120

Message from syslogd@linaro-alip at Nov  3 17:17:11 ...
 kernel:[   31.621491] Disabling IRQ #120