Hello guys, this problem was originally reported in docker/for-mac#4654

I'm using Opencore 0.5.9 in a X99 platform with a Haswell-E/P CPU, but this isn't directly related I think.

When spoofing cpu using Cpu1IdData and Cpu1IdMask Docker breaks on pulling images due to wrong hash calculation and/or corrupting data. Removing this immediately starts working flawless (but without cpu power mgmt in my specific case).

Can this be related to some instruction set / feature being enabled that's not supported on the running CPU?

I can provide logs if needed.