Re: [RFC PATCH] PCI MMCONFIG: add validation against ACPI motherboard resources

Linus Torvalds
2007-05-23T20:46:56Z

On Wed, 23 May 2007, Alan Cox wrote:
>
> > Well, the thing is, I'm pretty sure there is at least one northbridge that
> > stops memory accesses from the CPU when you turn off the MEM bit on it.
> > Oops, you just killed the machine.
>
> CS5520. But it doesn't have 64bit or PCI Express.

That patch does it for _all_ PCI probing. So it would turn any machine
using that northbridge into a brick.

Linus