On Thu, Apr 01, 2010 at 09:56:19AM -0600, Bob Beck wrote:
> > stupid idea, perhaps, but would it be possible to recycle the idea of
> > having some sort of canaries at the end of *each* page, thus disposing
> > of the need to have guard pages? Or would that be too costly?
>
> Oh sure, that'll work Ok, I'll just ensure when your file gets written
> out it has a 64 byte canarie replacing whatever was in it every 4K of
> the file. You won't miss that data much.
Also, canaries need active checks to see if they are alive.
Accessing unmapped pages just kill you instantly, smoothly and without
fuzz. All hail memory management hardware!
-Otto
