| Bug ID | 111802 |
|---|---|
| Summary | SegFault missing slots in framebuffer |
| Product | Mesa |
| Version | git |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | not set |
| Priority | not set |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | jeroen@blender.org |
| QA Contact | dri-devel@lists.freedesktop.org |
This fault has been detected when using Blender (2.80 or master branch) Steps to reproduce the error: 1. Start Blender 2. Go to edit mode (press tab) 3. Start Merge vertices tool (press ALT-M) 4. Select any mode (press ENTER) And a segmentation fault happens. This has been tested on Mesa 18.2.2, 19.0.8 and 19.3.0~dev. The root cause is that you have a framebuffer with multiple color slots with empty slots in between. If there is an empty color slot between the color slots, all textures after this slot are apparently skipped/discarded. Our work around is to reuse empty slots with other slots. `gpu_framebuffer_update_attachments_and_fill_empty_slots` in https://developer.blender.org/diffusion/B/browse/master/source/blender/gpu/intern/gpu_framebuffer.c$429-483 This issue also existed in the official AMD drivers, but has been solved to our knowledge. https://developer.blender.org/T70187
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