On Thu, 31 Jan 2002, Terry Lambert wrote:

> "Cameron, Frank" wrote:
> > From what was posted on the linux-kernel list the problem is the OS
> > doing the wrong thing not the hardware.  I originally asked the
> > question (albeit not worded as clearly as I should have) because if
> > Microsoft and Linux programmers made the same mistake, might
> > FreeBSD have also.
> No.  FreeBSD does not make active use of 4M pages for anything
> other than the initial kernel text and data, which is obvious,
> if you look at /sys/i386/machdep.c.
> For Linux and Windows, the obvious thing is to not map the
> memory into an aperture marked cacheable and in a 4M page;
> it's a coding problem with the use of 4M pages, when memory
> in them is allocated to AGP.
> This still doesn't get around the other bug, which happens
> if you use 4M pages certain obviously useful ways, without
> waving a dead chicken over certain things.  8-).

This one is not $10,000 but $0, since it has already been suggested.:-)


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