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

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Message-ID: <20070523213810.00d498c9@the-village.bc.nu>
Date:	Wed, 23 May 2007 21:38:10 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Robert Hancock <hancockr@...w.ca>,
	Olivier Galibert <galibert@...ox.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Andi Kleen <ak@...e.de>, Chuck Ebbert <cebbert@...hat.com>,
	Len Brown <lenb@...nel.org>
Subject: Re: [RFC PATCH] PCI MMCONFIG: add validation against ACPI
 motherboard resources

> 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.


Alan
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