double fault when nullmounting

[Matthew Dillon]

:Fresh 1.10-RELEASE, only used SMP and APIC_IO.
:
:Don't bother too much for now, I'll see if I can setup the same shebang again and this time get a coredump out of it.
:
:cheers
:  simon

    Ok.  If you can reproduce the double fault we can add a shim to the
    code to check whether the stack is too deep or not and panic the system
    before it actually hits the double fault.  Then a kernel core will be
    possible.

					-Matt