Subject: Re: mmap'ing framebuffer memory in MI drivers...
To: None <thorpej@nas.nasa.gov>
From: None <chuck@ccrc.wustl.edu>
List: tech-kern
Date: 03/21/1999 20:15:45
>On Sat, 06 Mar 1999 09:34:28 -0800
> Jason Thorpe <thorpej@nas.nasa.gov> wrote:
>Gack.
>I blame this on the fact that I haven't finished my first cup of coffee.
>The Mach VM code definitely called d_mmap at mmap time, to check every
>possibly page in the mapping, to ensure that the fault handler would never
>fail.
>UVM apparently doesn't do this. I personally would prefer that UVM did
>the check at mmap time.
>Chuck, is there a reason you didn't implement that?
yes, clearly i forgot to put the code in. :) whoops!
the thing to do is add enough args to udv_attach() so that it can do the
check.
chuck