Well, The issue appeared again. irq 18 was disabled, one pwc webcam was on that irq. This time on new hardware: Gigabyte F2A85X-UP4 with A10-5800K APU. The box was busy with it's raid10 array, this time, by running bonnie++; also a raid-check was in progress. (unknown at the time) So what does this say? It appears not to be a hardware problem per se. Anyone? Kind regards, Udo -- 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