* [Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo
@ 2015-04-08 17:23 bugzilla-daemon
2015-04-08 17:30 ` bugzilla-daemon
2015-04-13 23:20 ` bugzilla-daemon
0 siblings, 2 replies; 3+ messages in thread
From: bugzilla-daemon @ 2015-04-08 17:23 UTC (permalink / raw)
To: dri-devel
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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@lists.freedesktop.org
Reporter: tstellar@gmail.com
QA Contact: dri-devel@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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* [Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo
2015-04-08 17:23 [Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo bugzilla-daemon
@ 2015-04-08 17:30 ` bugzilla-daemon
2015-04-13 23:20 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2015-04-08 17:30 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=89957
--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
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
2015-04-08 17:23 [Bug 89957] vm protection faults in piglit lest: texsubimage cube_map_array pbo bugzilla-daemon
2015-04-08 17:30 ` bugzilla-daemon
@ 2015-04-13 23:20 ` bugzilla-daemon
1 sibling, 0 replies; 3+ messages in thread
From: bugzilla-daemon @ 2015-04-13 23:20 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=89957
Dave Airlie <airlied@freedesktop.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
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