taygun
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taygun's post in Windows 11 VM crashes on CPU intensive games - RTX 5080 GPU Passthrough was marked as the answerHi everyone,
I wanted to provide an update on my progress. After troubleshooting the MCE errors (Bank 1: bc800800060c0859) on my Ryzen 5000 / MSI X570 Unify build, I’ve had partial success.
What I’ve changed: I modified my Syslinux append line to include: processor.max_cstate=1 rcu_nocbs=0-15
The Result: This has successfully stabilized the VM during heavy gameplay. I am no longer seeing crashes while the RTX 5080 and CPU are under load.
The Current Problem: The system is now crashing and rebooting the entire Unraid server specifically when I close the some games. It seems the sudden transition from high load to idle is still tripping a hardware error.
Next Step: I am now adding idle=nomwait to my Syslinux append line to see if disabling the MWAIT instruction prevents these crashes during the power state transition.
Current line: append initrd=/bzroot processor.max_cstate=1 rcu_nocbs=0-15 idle=nomwait
I’ll report back once I've had some time to test if this stabilizes the "exit-to-desktop" crashes.