wimboot and Hyper-V

[robinsmidsrod]

My first bet would be to enable some kind of debug logging in Hyper-V, so you can see exactly what that crash is in terms of CPU registers and such.

Other than that I'd report it on the mailing-list as a bug (with as much information as possible). To help sort it out you should try to be on IRC to help with debugging/testing as I believe none of the core developers use Hyper-V on a daily basis.