> On Sat, Aug 26, 2000 at 07:31:07PM +0200, Anders Magnusson wrote:
> > > 
> > > So, the thing that could have changed is the "wired" attribute.  This
> > > is a purely software attribute, that communicates "this mapping is not
> > > forgettable" to the pmap layer.
> > > 
> > Yep, I check this too and it is not a wiring change either :-)
> > The panic shows up only if it is an identical mapping request to the
> > previous one :-)
> 
> Do you see both directions? that is: wired to wired AND unwired to unwired?
> 
Eh, parse problems with this sentence :-) But to explain better:

I have a wired bit in the PTE to keep track of wired pages, so I get the
wired comparition "for free". So, if a page changes from wired to unwired
or from unwired to wired I catch this.

-- Ragge