From: James Simmons <jsimmons@edgeglobal.com>
  To  : ggi-develop@eskimo.com
  Date: Wed, 25 Aug 1999 11:02:21 -0400

Re: KGIcon multiheading

On Sat, 21 Aug 1999, Andreas Beck wrote:

> > unsigned long (*wppage)(struct vm_area_struct * area, unsigned long
> > address, unsigned long page);
> 
> That doesn't help. Overhead is pretty much the same, as if for marking the
> pages readonly instead of swppaed out IIRC. The main "don't" is, though,
> that it doesn't catch read access. And for the cards that can really screw
> up, a read access would suffice.
> 

Ugh!! It looks like their is no choice but to write special handlers in all the
page fault code.  Still their has to be a way to find out if a page is being
written to, read from and trap it.