Apr 19 10:18:20 archbox kernel: irq 18: nobody cared (try booting with the "irqpoll" option)
Apr 19 10:18:20 archbox kernel: CPU: 5 PID: 239 Comm: irq/18-ohci_hcd Tainted: P           O 3.14.0-rt1-3-l-pa #1
Apr 19 10:18:20 archbox kernel: Hardware name: Gigabyte Technology Co., Ltd. GA-990FXA-UD5/GA-990FXA-UD5, BIOS F12 10/03/2013
Apr 19 10:18:20 archbox kernel:  0000000000000012 ffff88021af07e00 ffffffff8154fcc7 ffff88021d3e9800
Apr 19 10:18:20 archbox kernel:  ffff88021af07e28 ffffffff810cfc2b ffff88021d3e9800 0000000000000012
Apr 19 10:18:20 archbox kernel:  ffff88021d3e9800 ffff88021af07e68 ffffffff810d0126 ffffffff8107102e
Apr 19 10:18:20 archbox kernel: Call Trace:
Apr 19 10:18:20 archbox kernel:  [<ffffffff8154fcc7>] dump_stack+0x4d/0x82
Apr 19 10:18:20 archbox kernel:  [<ffffffff810cfc2b>] __report_bad_irq+0x2b/0xe0
Apr 19 10:18:20 archbox kernel:  [<ffffffff810d0126>] note_interrupt+0x1a6/0x200
Apr 19 10:18:20 archbox kernel:  [<ffffffff8107102e>] ? local_bh_enable+0xe/0x20
Apr 19 10:18:20 archbox kernel:  [<ffffffff810ce500>] ? irq_thread_fn+0x60/0x60
Apr 19 10:18:20 archbox kernel:  [<ffffffff810ce7a7>] irq_thread+0x167/0x180
Apr 19 10:18:20 archbox kernel:  [<ffffffff810ce7c0>] ? irq_thread+0x180/0x180
Apr 19 10:18:20 archbox kernel:  [<ffffffff810ce640>] ? wake_threads_waitq+0x40/0x40
Apr 19 10:18:20 archbox kernel:  [<ffffffff81090824>] kthread+0xc4/0xe0
Apr 19 10:18:20 archbox kernel:  [<ffffffff81090760>] ? flush_kthread_worker+0xa0/0xa0
Apr 19 10:18:20 archbox kernel:  [<ffffffff8155dbbc>] ret_from_fork+0x7c/0xb0
Apr 19 10:18:20 archbox kernel:  [<ffffffff81090760>] ? flush_kthread_worker+0xa0/0xa0
Apr 19 10:18:20 archbox kernel: handlers:
Apr 19 10:18:20 archbox kernel: [<ffffffff810cd8a0>] irq_default_primary_handler threaded [<ffffffffa0023de0>] usb_hcd_irq [usbcore]
Apr 19 10:18:20 archbox kernel: [<ffffffff810cd8a0>] irq_default_primary_handler threaded [<ffffffffa0023de0>] usb_hcd_irq [usbcore]
Apr 19 10:18:20 archbox kernel: [<ffffffff810cd8a0>] irq_default_primary_handler threaded [<ffffffffa0023de0>] usb_hcd_irq [usbcore]
Apr 19 10:18:20 archbox kernel: [<ffffffff810cd8a0>] irq_default_primary_handler threaded [<ffffffffa0023de0>] usb_hcd_irq [usbcore]
Apr 19 10:18:20 archbox kernel: Disabling IRQ #18
Apr 19 10:18:20 archbox kernel: delay: estimated 384, actual 96
Apr 19 10:18:20 archbox kernel: delay: estimated 384, actual 96