[Linux-fbdev-devel] Re: Who is stomping PCI config space?

[Benjamin Herrenschmidt]

On Fri, 2005-03-04 at 12:25 +0100, Egbert Eich wrote:
> Benjamin Herrenschmidt writes:
>  > 
>  > I had a report of something similar with X and a mach64 ... I haven't
>  > yet investigated, but basically, X is using "fbdev" (so no specific
>  > driver) and seem to be disabling memory access to the card, thus blowing
>  > up the kernel fbdev.
>  > 
> 
> Benjamin,
> 
> I faintly remember adding code to the Xserver that it wouldn't do this
> when you only used fbdev drivers. 
> It may do this for setup (ie. probing) as it has no idea about the drivers
> it is going to encounter. With the new interface I've added we may actually
> change this. I'm already doing this to determine if I need to enable PIO.
> 
> I need to look at this code again, though.

Ok. In this case, the fbdev only uses mmio. Anyway, I'll investigate as
soon as I can install the repro case (FC3 distro) on an mach64 machine,
probably early next week.