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Cycles GPU+CPU Render crashes
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System Information
Operating system: Windows 10 64bit
Graphics card: NVIDIA GeForce GTX 980 Ti, Driver 417.01

Blender Version
Broken: 2.80 Beta, 26d5a3625ed, 2018-11-29 15:57
Worked: (optional)

Short description of error
Blender crashes on my PC when i try to render the default cube scene with GPU and CPU simultaneously in Cycles Renderer. When selecting only either GPU or CPU as compute device in the settings, the rendering works correctly without crashing.

Console output:

D:\Apps\blender-2.80.0-beta-git.26d5a3625ed-windows64>blender -w -d
Switching to fully guarded memory allocator.
Blender 2.80 (sub 35)
Build: 29/11/2018 08:42 Windows Release
argv[0] = blender
argv[1] = -w
argv[2] = -d
read file C:\Users\Kim Laplume\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend
  Version 280 sub 35 date 2018-11-29 15:57 hash 26d5a3625ed
Read prefs: C:\Users\Kim Laplume\AppData\Roaming\Blender Foundation\Blender\2.80\config\userpref.blend
read file C:\Users\Kim Laplume\AppData\Roaming\Blender Foundation\Blender\2.80\config\startup.blend
  Version 280 sub 35 date 2018-11-29 15:57 hash 26d5a3625ed
AL lib: (EE) UpdateDeviceParams: Failed to set 48000hz, got 44100hz instead
AL lib: (EE) SetChannelMap: Failed to match front-center channel (2) in channel map
found bundled python: D:\Apps\blender-2.80.0-beta-git.26d5a3625ed-windows64\2.80\python
Address : 0x00007FF65E3212EE
Address : 0x00007FF65E3212EE
Module  : D:\Apps\blender-2.80.0-beta-git.26d5a3625ed-windows64\blender.exe

Exact steps for others to reproduce the error
-Start Blender
-Go to Preferences
-Go to General Tab, Enable CUDA as "Cycles Compute Device", tick boxes for "GeForce GTX 980 Ti (Display)" and "Intel Core i5-6600K CPU @ 3.50Ghz"
-Save Preferences
-Go to Properties Panel, Render Tab, select Render Engine "Cycles"
-Select Device "GPU Compute" (Feature Set remains on "Supported")
-Hit F12
-Render Window opens for 0.5 seconds, then Blender closes completely



Event Timeline

Brecht Van Lommel (brecht) closed this task as Archived.
Brecht Van Lommel (brecht) claimed this task.

This is fixed in the very latest build.

Confirmed, Build 2.80 Beta, 0f5b53ba4dc, 2018-11-30 22:29 works as expected. Thanks