LGDT should have CPL=0

[sehftz]

Currently in this file the LGDT instruction has CPL=3, however in Intel's SDM Volume 2 Chapter 3.3 "LGDT/LIDT—Load Global/Interrupt Descriptor Table Register", it specifies the exception "#GP(0) If the current privilege level is not 0.".

[marjevan]

Thanks for your report.
A fix will be available with the upcoming external release.

[marjevan]

Solved this in 6d87b54