On Thursday 11 April 2013 20:11:13 Ming Lei wrote:
> On Thu, Apr 11, 2013 at 7:14 PM, Oliver Neukum <oli...@neukum.org> 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(),
No. cancel_work_sync() must wait for the work. The work will not finish.
Regards
Oliver
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