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Re: Xorg, libpciaccess and /dev/mem


From: olafBuddenhagen
Subject: Re: Xorg, libpciaccess and /dev/mem
Date: Fri, 12 Mar 2010 15:09:01 +0100
User-agent: Mutt/1.5.19 (2009-01-05)

Hi,

On Fri, Mar 12, 2010 at 02:43:46AM +0100, Samuel Thibault wrote:
> address@hidden, le Fri 12 Mar 2010 00:32:44 +0100, a écrit :
> > On Thu, Mar 11, 2010 at 05:35:13PM +0100, Samuel Thibault wrote:

> > But that will still need a method for obtaining a memory object for
> > the physical address space from the kernel.
> 
> Right.

In other words, we still need iopl/mem... Only applications will be
adapted to not use it directly anymore.

> > > Maybe in the meanwhile we should alias mem and iopl in the gnumach
> > > kernel, so already installed hurds can run Xorg (and the name
> > > "iopl" doesn't sound so good to me to replace mem :)).
> > 
> > Yeah, I actually mentioned on IRC that probably the best fix is
> > renaming the kernel device...
> 
> And break existing code that uses it?

No, not necessarily. I totally agree that flag days are bad, and
aliasing would be good for the transitional period. I meant the end
result only here :-)

-antrik-




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