Crash rendering when using OptiX and Grease Pencil on recent drivers #120007

New Issue

Sergey Sharybin · 2024-03-28T11:50:53+01:00

Sergey Sharybin commented

2024-03-28 11:50:53 +01:00

System Information
Operating system: Linux, tested on Ubuntu 24.04 and Gentoo
Graphics card: NVidia 6000 Ada, NVidia GP100

Blender Version
Broken: Multiple Blender versions of 4.2 Alpha, mainly tested with 53e9fb6b78
Worked: Works when using Nvidia driver 535.161.07

Short description of error

When using recent NVidia drivers, such as 545.29.06, 550.54.14, 550.67 Blender will crash when rendering scene with Grease Pencil on OptiX. The important aspect is that the crash only happens during command line rendering.

The issue is somehow related on order in which OpenGL and OptiX is initialized:

If WM_gpu_init() is called from arg_handle_render_frame() prior to the RE_RenderAnim() then the crash does not happen.
If the WM_gpu_init() is called right after the optixDeviceContextCreate() then the crash will happen at that point in the context initialization.

The crash backtrace goes quite deep into the driver itself, so there is no really usable back trace.

When using NVidia driver 535.161.07 the crash does not happen.

Exact steps for others to reproduce the error

Download attached .blend file
Run ./bin/blender -b ~/Downloads/gp.blend -f 1 in the terminal

**System Information** Operating system: Linux, tested on Ubuntu 24.04 and Gentoo Graphics card: NVidia 6000 Ada, NVidia GP100 **Blender Version** Broken: Multiple Blender versions of 4.2 Alpha, mainly tested with 53e9fb6b78b Worked: Works when using Nvidia driver 535.161.07 **Short description of error** When using recent NVidia drivers, such as 545.29.06, 550.54.14, 550.67 Blender will crash when rendering scene with Grease Pencil on OptiX. The important aspect is that the crash only happens during command line rendering. The issue is somehow related on order in which OpenGL and OptiX is initialized: * If `WM_gpu_init()` is called from `arg_handle_render_frame()` prior to the `RE_RenderAnim()` then the crash does not happen. * If the `WM_gpu_init()` is called right after the `optixDeviceContextCreate()` then the crash will happen at that point in the context initialization. The crash backtrace goes quite deep into the driver itself, so there is no really usable back trace. When using NVidia driver 535.161.07 the crash does not happen. **Exact steps for others to reproduce the error** * Download attached .blend file * Run `./bin/blender -b ~/Downloads/gp.blend -f 1` in the terminal

gp.blend

3.9 MiB

Sergey Sharybin added the

labels 2024-03-28 11:50:54 +01:00

Sergey Sharybin referenced a pull request that will close this issue

2024-03-28 17:50:30 +01:00