[Bug 107356] [kbl/apl] [drm] GPU hang in Antutu 7.x games with 4.14.52 kernel

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107356

--- Comment #32 from yugang <yugang.fan at intel.com> ---
(In reply to Tapani Pälli from comment #22)
> (In reply to Ren Chenglei from comment #21)
> > Do we have any progress on this crash issue?
> 
> I haven't been able to figure out the hang. Some observations though .. I've
> disabled EXT_tessellation_shader in the driver, this causes antutu to jump
> over the first test and run rest of the tests and there is no hang. I've
> also tried disabling usage of push constants (hang seems to be related to
> these) but this did not help, hang still occurs. Next thing I'm going to try
> is to dump all shaders from first test and see if I could figure out which
> ones might be related to the hang.

i tried and found the hang related to below shader files(tried to comment the
share files loading, the hang would not be reproduced):

/sdcard/androiddata/shaders\floop_tesselation.glsl_shadow_vs_vp
/sdcard/androiddata/shaders\floop_tesselation.glsl_shadow_tes_tes
/sdcard/androiddata/shaders\floop_tesselation.glsl_shadow_tcs_tcs

i am trying to dump those files and to see if there are some related finds.

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