The kernel locore code  has `fast' and `normal' versions
of the interrupt-vector glue code.  Are the `fast' vectors
actually used anywhere?  I can't see anywhere where they're
passed to setgate().

I also cant' see anywhere that might let a driver or
kernel configuration select `fast' interrupts.


If they never get used and there's no way to enable them,
what are they in the kernel for?

thanks for any answers,
--Jonathan