Re: net/bluetooth: workqueue destruction WARNING in hci_unregister_dev

On 02/19/2016, 11:20 AM, Jiri Slaby wrote:

On 02/18/2016, 06:44 PM, Tejun Heo wrote:

quoted

Hello,

Can you please do the followings?

1. Remove WQ_MEM_RECLAIM from the affected workqueue and see whether
   the problem is reproducible.  WQ_MEM_RECLAIM on anything bluetooth
   doesn't make sense btw.  Why is it there?

2. If WQ_MEM_RECLAIM makes the issue go away, see whether the attached
   patch works too.

Hello,

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>

thanks,

-- 
js
suse labs