Re: Intel Pentium Bug: BSDI Releases a patch
Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 12 Nov 1997 14:23:46 +0000 (GMT)
> > The IDT points to the end of a page such that vector 0x0E (page fault) is
> > the start of the next page. The page with vectors 0-0xD is missing. This
> > will cause all traps to cause a page fault. One assumes the page fault
> > handler then fixes them up and handles them
> >
> > Alan
>
> What kind of performance hit is this?
If I read it right not that bad at all - and its less traps than I though as
someone pointed out its 8 bytes trap so its only the lower traps they are
page faulting
Alan