Hello,
I tried to install macOS Sierra 10.12.2 on VirtualBox in order to use Xcode which is only available on mac systems. I used the same issues showed on this YouTube video : [URL removed] (I have a too recent account for urls)
The first time I installed it and it worked, but I accidentally deleted my VM, and then now I try to re-setup, I get the critical error of Virtualbox with Guru Meditation.
I did all the issues to correct it, as reduce memory size allocation, disable PAE or change cmd options, but the error still appears. By the way here are the logs of VM :
Have you also got the same issues by installing macOS and did you get a solution ? I read on the forum that macOS is unsupported or buggy on Windows hosts, but I succeeded for the first time, so I can't see any problem about it.