[Bug 108782] Android: i965/brw_draw affected by segfault in intel_disable_rb_aux_buffer()

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108782

--- Comment #3 from Tapani Pälli <lemody at gmail.com> ---
(In reply to Mauro Rossi from comment #2)
> The HW is Lenovo T460 with Intel HD Graphics 530 (Skylake GT2)
> 
> As other info I'm using kernels 4.19 and 4.20rc, latest libdrm and the
> problem appears in both mesa 18.3 branch and in master
> 
> Do you have any significant changes to deal with separate RenderThread in
> Android-IA(Celadon)?

I don't think we have any changes related to this.

> I've also tried to comment the if (rendering) {...} at line 532 in
> brw_draw.c, but, obviously, I get the same result textures are rendered
> 'black',
> do you know if bool rendering effectively represent all cases where
> intel_disable_rb_aux_buffer() should be called
> or if there are some factors to take into account?
> 
> What should be the behavior in brw_draw.c @line 366 when irb->mt is null and
> evaluation of irb->mt->bo causes the segfault?
> 

That case should not happen, there should always be a miptree allocated to a
render buffer. Something is broken already earlier if we can end up in such a
situation.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-3d-bugs/attachments/20181119/4bd9ab33/attachment.html>