> On Sat, Aug 26, 2000 at 02:13:34PM +0200, Anders Magnusson wrote:
> 
>  > This panic means that it has gotten a fault for a page that was already
>  > mapped. Can you give the situation when it happened? I haven't been able
>  > to get that panic myself.
> 
> It would be nice to know the call trace to how this happens, but it's
> worth nothing that the other pmaps have dealt with this ~forever by
> removing a differing mapping first... see the Alpha pmap_enter(), for
> example.
> 
Yes, so do the VAX, but this panic only happens if it is _the_same_ page
with the same permissions that it is trying to map on top of the old one.

-- Ragge