In message <199707241922.VAA03851@pif.laas.fr>, Matthieu Herrb writes:
>You wrote (in your message from Thu 24)
> > 
> > what would prevent a FreeBSD X server (from Xi Graphics, for a
> > NeoMagic graphics chip) from running under NetBSD's FreeBSD
> > emulation, if anything?  (No, I've not tried it...yet.)
> > 
>Probably the secure level and/or the i386iopl() system call:
>
>FreeBSD doesn't have secure levels. So you'll need to run NetBSD with
>'option INSECURE' in the kernel.

Are you sure? From the init(8) man page on a FreeBSD 2.2.1 box:

     The kernel runs with four different levels of security.  Any superuser
     process can raise the security level, but only init can lower it.  The
     security levels are:

     ... 
     ...