Vulkan Async Sc thread takes 100% CPU when using OpenGL renderer

[linkmauve]

Please do not ask for help or report compatibility regressions here, use RPCS3 Discord server or forums instead.

Quick summary

A thread named Vulkan Async Sc is taking 100% of one core despite not using Vulkan.

Details

Please describe the problem as accurately as possible.

0. Make sure you're running with settings as close to default as possible

• Do NOT enable any emulator game patches when reporting issues
• Only change settings that are required for the game to work

1. Please attach RPCS3's log.

RPCS3.log

2. If you describe graphical issue, please provide an RSX capture and a RenderDoc capture that demonstrate it.

N/A

3. Please attach screenshots of your problem.

N/A

4. Please provide comparison with real PS3.

N/A

5. Please provide your system configuration:

• OS: ArchLinux
• CPU: i7-8700k
• GPU: R9 270X (a UHD630 is also present on the system and has a Vulkan driver, but is unused here)
• Driver version: mesa master (21.2.0-devel commit a084e79a491)
• etc.

Please include.

• Anything else you deem to be important
  I was previously using the Vulkan backend when on the Intel card, before acquiring this R9 270X, so some settings might have carried over.

[Megamouse]

the log is inaccessible

[kd-11]

I have the async scheduler thread only spawning when the vulkan renderer is being initialized, but I can reproduce this issue. Investigating.

[kd-11]

It's triggered by automatic type management. I've added a thread early exit in case incompatible options are active. Fix will be available in the next PR.