[<ffffffff811e0799>] poll_schedule_timeout+0x39/0x60 [<ffffffff811e1753>] do_sys_poll+0x4b3/0x5e0 [<ffffffff811e1a71>] sys_poll+0x71/0x100 [<ffffffff8156f3e7>] system_call_fastpath+0x35/0x3a [<ffffffffffffffff>] 0xffffffffffffffff