Re: redraw issues on i915 since 4.9-rc

From: Chris Wilson
Date: Fri Nov 04 2016 - 08:57:27 EST

On Fri, Nov 04, 2016 at 08:40:47PM +0900, Norbert Preining wrote:
> Dear all,
> since 4.9-rc series started I see heavy redraw problems on i915. Starting
> or resizing for example the digikam window messes up completely the content.
> I have seen this at least since rc2 (I often wait till rc2), and
> confirm that 4.8.0 does not exhibit these problems.
> A screenshot of the redraw problems is attached.

The fencing looks correct. To me it looks like we filled the vma with
the wrong set of pages from the parent object. #drm-intel-nightly contains one
interesting patch wrt to the partial vma->pages
Do you mind testing -nightly to see if I'm barking up the wrong tree?

Chris Wilson, Intel Open Source Technology Centre