Re: [REGRESSION] media: cx23885 broken by commit 453afdd "[media] cx23885: convert to vb2"

[Jurgen Kramer <gtmkramer@xs4all.nl>]

Hi Hans,

On Fri, 2015-02-13 at 10:24 +0100, Hans Verkuil wrote:
> Jurgen, Raimond,
> 
> On 02/13/2015 10:12 AM, Hans Verkuil wrote:
> > Hi Jurgen,
> > 
> > On 02/04/2015 06:21 PM, Jurgen Kramer wrote:
> >> On Wed, 2015-02-04 at 17:19 +0100, Hans Verkuil wrote:
> >>> On 02/04/2015 05:06 PM, Jurgen Kramer wrote:
> >>>> Hi Hans,
> >>>>
> >>>> On Mon, 2015-02-02 at 10:36 +0100, Hans Verkuil wrote:
> >>>>> Raimonds and Jurgen,
> >>>>>
> >>>>> Can you both test with the following patch applied to the driver:
> >>>>
> >>>> Unfortunately the mpeg error is not (completely) gone:
> >>>
> >>> OK, I suspected that might be the case. Is the UNBALANCED warning
> >>> gone with my vb2 patch?
> > 
> >>> When you see this risc error, does anything
> >>> break (broken up video) or crash, or does it just keep on streaming?
> > 
> > Can you comment on this question?
> > 
> >>
> >> The UNBALANCED warnings have not reappeared (so far).
> > 
> > And they are still gone? If that's the case, then I'll merge the patch
> > fixing this for 3.20.
> > 
> > With respect to the risc error: the only reason I can think of is that it
> > is a race condition when the risc program is updated. I'll see if I can
> > spend some time on this today or on Monday. Can you give me an indication
> > how often you see this risc error message?
> 
> Can you both apply this patch and let me know what it says the next time you
> get a risc error message? I just realized that important information was never
> logged, so with luck this might help me pinpoint the problem.
I'll apply it tonight and will keep you posted.

Jurgen