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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Android: i965/brw_draw affected by segfault in intel_disable_rb_aux_buffer()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108782#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Android: i965/brw_draw affected by segfault in intel_disable_rb_aux_buffer()"
href="https://bugs.freedesktop.org/show_bug.cgi?id=108782">bug 108782</a>
from <span class="vcard"><a class="email" href="mailto:lemody@gmail.com" title="Tapani Pälli <lemody@gmail.com>"> <span class="fn">Tapani Pälli</span></a>
</span></b>
<pre>(In reply to Mauro Rossi from <a href="show_bug.cgi?id=108782#c2">comment #2</a>)
<span class="quote">> 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)?</span >
I don't think we have any changes related to this.
<span class="quote">> 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?
> </span >
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.</pre>
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