I am having a similar issue with my VM crashing my Unraid box. My Ubuntu VM boots fine and works well; if I reboot Ubuntu it crashes Unraid sometimes. A reboot of Unraid will trigger the 127 error; it has to be a full shutdown to get the VM back up. I have the following hardware:
Asrock X570 phantom gaming 4s
ryzen 3700x
xfx rx 550
question: I have the latest bios which is not
AMD AGESA 1.0.0.4 B. Do I have to use this Bios regardless if it’s not the latest one?