Running multiple instances of Cycles HIP ends in segfault #93762
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Reference: blender/blender#93762
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System Information
Operating system: Windows 10
Graphics card: 2x Radeon W6800 32GB
Blender Version
Broken: 3.0.0,
3788003cda
, master, 2021-11-30Worked: Never
Short description of error
When I have 2 instances of Cycles rendering using HIP at the same time on a particular production scene, one instance will crash with the following error:
Exact steps for others to reproduce the error
I was unable to reproduce it in a simple scene or any commonly available demo scenes such as classroom or Barbarshop. And unfortunately I cannot share the particular scene that's causing the issue. But the scale of the scene that's crashing should easily fit onto the GPU vram three times.
I've attached the crash report. If more info is needed I will try to create a dummy scene that show the same behavior.
Anim-A-Garage.crash.txt
Added subscriber: @MikePan
Added subscribers: @BrianSavery, @lichtwerk
Changed status from 'Needs Triage' to: 'Needs Developer To Reproduce'
@BrianSavery : can you make something out of that crash log?
(otherwise feel free to set to
Needs Information from User
, @MikePan : we would need some sort of reproducable case/.blend here then).Added subscriber: @Sayak-Biswas
We work With mike on the Mercedes F1 renders this was done for I think. So he can share with us.
Can you assign to @Sayak-Biswas I am on parental leave.
File shared with @Sayak-Biswas .