@lanodan The whole thing is ring-0 and Terry was doing a lot of unconventional stuff, so if anyone's going to find a path that was not exercised previously, my money would be on him. He always used VMWare, I think he still used VMWare even after switching to ubertuber. I wonder if there's something in there that KVM can't account for or something that hardware ignores but qemu chokes on, or just a bug.