[Bug 110814] KWin compositor crashes on launch

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=110814

--- Comment #27 from Denis <denys.kostin at globallogic.com> ---
hi, sorry for long reply, but anyway - we could find and reproduce this issue.
Also I made a bisect, and it lead to this commit:

commit dca36d5516d0fdaf012b4476975c5d585c2d1a09
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Sun Jul 9 23:03:44 2017 -0700

i965: Implement threaded GL support.

Now i965 supports mesa_glthread=true like Gallium drivers do.

According to Markus (degasus), the Citra emulator now runs ~30% faster.
Emmanuel (linkmauve) also reported that the Dolphin emulator improved
by 2.8x on one game. (Both of those still need to be added to drirc.)

An Intel Mesa CI run with mesa_glthread=true appears to be happy.

Bioshock Infinite's benchmark mode seems to be around 15-20% faster
on my Skylake GT4 at 1920x1080.

Tested-by: Markus Wick <markus at selfnet.de>
Tested-by: Emmanuel Gil Peyrot <linkmauve at linkmauve.fr>
Tested-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

Also we created a piglit-test, which should trigger and test this bug:
https://gitlab.freedesktop.org/mesa/piglit/merge_requests/87

As I know, right now the only one "work" solution is waiting for review:
https://bugs.freedesktop.org/show_bug.cgi?id=110814#c20

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