On Thu, Apr 11, 2013 at 7:14 PM, Oliver Neukum <oliver@xxxxxxxxxx> wrote: > > Sorry, I misunderstood. No problem, :-) > > Task A Task B queue > > queue work > request a reset > allocate memory and block > cancel the work > shit happened If I understand the case correctly, the above deadlock can be avoided by canceling rx/tx URBs at the end of pre_reset() or usbnet_disconnect(), then memory can still be reclaimed in queue context since rx/tx is still workable. Right? Thanks, -- Ming Lei -- 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