seems I finally found what upset kqemu on amd64 SMP... shared gdt! (please test patch :)

[Bakul Shah]

On Tue, 06 May 2008 22:02:28 +0200 Teufel <bsd at kuehlbox.de>  wrote:
> Bakul Shah wrote:
> >> at needs to be done to fix that?
> >>     
> >
> > Comment it out in amd64/amd64/trap.c!
> >   
> getting rid of the message, yes.. but without further issues?

The message is there "because you are not supposed to do it"
See for instance

http://docs.freebsd.org/cgi/getmsg.cgi?fetch=100953+0+archive/2007/freebsd-emulation/20070415.freebsd-emulation

This seems to have not caused any problem in practice.  And
any way taking out the message doesn't change the essential
behavior (the invariant is still broken) but it can speed up
your emulation considerably.