Crash when rendering multiple view layers #108778

New Issue

Jacques Lucke · 2023-06-08T21:36:00+02:00

Jacques Lucke commented

2023-06-08 21:36:00 +02:00

System Information
Operating system: Linux-6.2.13-200.fc37.x86_64-x86_64-with-glibc2.36 64 Bits, X11 UI
Graphics card: AMD Radeon RX 5700 (navi10, LLVM 15.0.7, DRM 3.49, 6.2.13-200.fc37.x86_64) AMD 4.6 (Core Profile) Mesa 23.0.3

Blender Version
Broken: version: 4.0.0 Alpha, branch: main, hash: 47ce7bbecc57bf5a6e648d18db035d2ee78f43e7

Short description of error
Rendering pets/pro/shots/010_intro/010_0060/010_0060.lighting.blend from the Blender Studio production results in a crash during geometry nodes evaluation (in most cases).

Exact steps for others to reproduce the error

Make sure you have the repository checked out (only for people at Blender).
Open pets/pro/shots/010_intro/010_0060/010_0060.lighting.blend.
Render single frame.
Crash when rendering the Background enabled view layer.

The crash happens while evaluating the modifier on the LGT-shadow_proxy object. In the node tree, the CH-dog collection is realized. It seems like some objects in the collection are uninitialized in the depsgraph.

My initial investigation suggests that this is caused by reusing the same depsgraph for rendering different view layers somehow. When I change engine_depsgraph_init to always call engine_depsgraph_free instead of ever using DEG_graph_replace_owners, the crash does not happen for me.

I also was not able to reproduce the crash when rendering view layers individually.

Maybe someone has an idea for what could be different in a newly created depsgraph vs. one that was updated from another view layer.

**System Information** Operating system: Linux-6.2.13-200.fc37.x86_64-x86_64-with-glibc2.36 64 Bits, X11 UI Graphics card: AMD Radeon RX 5700 (navi10, LLVM 15.0.7, DRM 3.49, 6.2.13-200.fc37.x86_64) AMD 4.6 (Core Profile) Mesa 23.0.3 **Blender Version** Broken: version: 4.0.0 Alpha, branch: main, hash: `47ce7bbecc57bf5a6e648d18db035d2ee78f43e7` **Short description of error** Rendering `pets/pro/shots/010_intro/010_0060/010_0060.lighting.blend` from the Blender Studio production results in a crash during geometry nodes evaluation (in most cases). **Exact steps for others to reproduce the error** 1. Make sure you have the repository checked out (only for people at Blender). 2. Open `pets/pro/shots/010_intro/010_0060/010_0060.lighting.blend`. 3. Render single frame. 4. Crash when rendering the Background enabled view layer. The crash happens while evaluating the modifier on the `LGT-shadow_proxy` object. In the node tree, the `CH-dog` collection is realized. It seems like some objects in the collection are uninitialized in the depsgraph. My initial investigation suggests that this is caused by reusing the same depsgraph for rendering different view layers somehow. When I change `engine_depsgraph_init` to always call `engine_depsgraph_free` instead of ever using `DEG_graph_replace_owners`, the crash does not happen for me. I also was not able to reproduce the crash when rendering view layers individually. Maybe someone has an idea for what could be different in a newly created depsgraph vs. one that was updated from another view layer.

Jacques Lucke added the

labels 2023-06-08 21:36:00 +02:00

Iliya Katushenock added the