linux-kernel - Re: [PATCH] x86_64: update e820 instead of updating end

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Message-Id: <200801201608.15401.ak@suse.de>
Date:	Sun, 20 Jan 2008 16:08:14 +0100
From:	Andi Kleen <ak@...e.de>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Yinghai Lu <Yinghai.Lu@....com>, "H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jesse.barnes@...el.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] x86_64: update e820 instead of updating end_pfn

On Sunday 20 January 2008 10:20:27 Ingo Molnar wrote:
> * Yinghai Lu <Yinghai.Lu@....COM> wrote:
> > [PATCH] x86_64: update e820 instead of updating end_pfn
> >
> > when mtrr is not covering all e820 table, need to trim the ram, need
> > to update e820
>
> ok, i like this approach even more - applied. Would you like to have a
> shot at adding mtrr_trim_uncached_memory() to 32-bit too? It is affected
> by the same problem (if not more).

What about the AMD fix I posted? You ignored that one for now but it is far 
more critical because it makes these patches break any modern AMD machine
with >3GB.

-Andi


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