[Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89957

Dave Airlie  changed:

   What|Removed |Added

 Status|NEW |RESOLVED
 Resolution|--- |FIXED

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[Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89957

--- Comment #1 from Alex Deucher  ---
Possibly fixed by this patch:
http://lists.freedesktop.org/archives/mesa-dev/2015-April/081426.html
See also:
http://lists.freedesktop.org/archives/mesa-dev/2015-April/081424.html

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[Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo

[bugzilla-dae...@freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89957

Bug ID: 89957
   Summary: vm protection faults in piglit lest: texsubimage
cube_map_array pbo
   Product: Mesa
   Version: git
  Hardware: Other
OS: All
Status: NEW
  Severity: normal
  Priority: medium
 Component: Drivers/Gallium/radeonsi
  Assignee: dri-devel at lists.freedesktop.org
  Reporter: tstellar at gmail.com
QA Contact: dri-devel at lists.freedesktop.org

To reproduce:  /home/tstellar/piglit/bin/texsubimage cube_map_array pbo -auto
-fbo

I've spent some time debugging this and it appears the result from the
v_cubeid_f32
instruction is causing the shader to access memory outside the bounds of the
texture.

If I replace v_cubeid_f32 $dst, $src0, $src1, $src2 instructions with v_mov_f32
$dst, 0.0 or v_mov_f32 $dst, 1.0
I no longer see vm protection faults.

However, if I replace the v_cubeid_f32 instructions with v_mov_f32 $dst, 2.0
then the vm protection faults return.  So, it seems the bad case is whenever
the face id is computed as >= 2.0f.

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