> 
> On Thursday, October 16, 2003, at 03:25  AM, Richard Earnshaw wrote:
> 
> > True, but in that case the worst that would happen is that we would 
> > take a
> > second fault after adding the page read-only on the first fault.
> 
> Except that we specifically changed the pmap_enter() interface in order 
> to avoid double faults like these.  It would really suck to reintroduce 
> double faults for this (pretty common) case.
> 
>          -- Jason R. Thorpe <thorpej@wasabisystems.com>
> 

But then, so would having to decode every Thumb instruction.

R.