Re: [Patch v2] Make PCI extended config space (MMCONFIG) a driveropt-in

[Linus Torvalds]

On Fri, 11 Jan 2008, Matthew Wilcox wrote:
> 
> But they can't.  We limit the size they can access to 256 bytes, unless
> the kernel probed address 256 and it worked.

Umm. Probing address 256 (or *any* address) using MMCONFIG will simply 
lock up the machine. HARD.

What's so hard to understand about MMCONFIG being broken on certain 
hardware?

		Linus
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