Re: net/bluetooth: workqueue destruction WARNING in hci_unregister_dev

[Tejun Heo]

Hello, Jiri.

On Fri, Feb 19, 2016 at 01:10:00PM +0100, Jiri Slaby wrote:
> > 1. didn't help, the problem persists. So I haven't applied the patch from 2.
> 
> FWIW I dumped more info about the wq:
> wq->name='hci0' pwq=ffff8800390d7600 wq->dfl_pwq=ffff8800390d5200
> pwq->refcnt=2 pwq->nr_active=0 delayed_works: <nothing>

Can you please print out the same info for all pwq's during shutdown?
It looks like we're leaking pwq refcnt but I can't spot a place where
that could happen on an empty pwq.

Thanks.

-- 
tejun