Warning at drivers/gpu/drm/drm_atomic_helper.c

[Lucas Stach]

Am Mittwoch, den 25.01.2017, 09:47 -0200 schrieb Fabio Estevam:
> On Wed, Jan 25, 2017 at 9:30 AM, Lucas Stach <l.stach at pengutronix.de> wrote:
> 
> > Kernel 4.10 just moves the fence attach to the plane state. It has
> > nothing to do with the used commit function. The issue going away if you
> > change that on kernel 4.9 is a red herring.
> >
> > In any case, can you try the attached patch? It's against 4.10, if you
> > want to test it on 4.9 you need to replace dma_fence_put(), with
> > fence_put().
> 
> Just tested it on 4.9 (using fence_put()) and I can still get the
> warning sometimes:
> http://pastebin.com/p6acMLcY
> 
Okay, after looking more at the 4.9 code, I understand what's going on.
I've just sent out a patch to fix this issue for kernel 4.9.

Regards,
Lucas