On 7 December 2016 at 01:09, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 6 Dec 2016, PrasannaKumar Muralidharan wrote: > >> > The issue did not appear for a day with 4.9-rc5. Will check for a >> > couple more days and get back. >> >> I have been running 4.9-rc5 for quite some time. Did not observe the >> crash so far but some times my USB port stops recognising the device. >> After rebooting the system the USB port starts working. >> >> No OOPS or message related to this appeared in dmesg output. Is there >> a way to collect more info? > > You can turn on dynamic debugging for USB: > > echo 'module usbcore =p' >/sys/kernel/debug/dynamic_debug/control > > Alan Stern > Okay. Let me try to get more info and get back. Thanks, PrasannaKumar -- 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