On Fri, 25 Jan 2013, Udo van den Heuvel wrote: > On 2013-01-02 17:46, Alan Stern wrote: > > Or else leave those devices unplugged entirely -- use a network login > > instead of the USB keyboard and mouse. > > When the motion service is off, i.e. the USB webcam isnt used, the > issue does not happen. > > On the other hand: > > If it is on, within a few days I see stuff like: > > Jan 25 03:08:26 s kernel: [128427.542235] irq 18: nobody cared (try > booting with the "irqpoll" option) > And when I restart everything: > [133977.918683] ohci_hcd 0000:00:13.0: IRQ: 4 8000005a > [133985.698868] ohci_hcd 0000:00:13.0: last IRQ repeated 100 times > [134003.770072] ohci_hcd 0000:00:13.0: IRQ: 24 8000005a > [134006.297099] ohci_hcd 0000:00:13.0: last IRQ repeated 100 times This seems pretty clear. The hardware in that OHCI controller is broken. It is issuing interrupt requests when it shouldn't. This isn't a software problem. I don't know of any way to fix it or work around it in the driver. The only thing to do is stop using that controller. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
