| 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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