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Date: Thu, 5 Jun 2008 21:45:36 -0700
From: Arjan van de Ven <arjan@...radead.org>
To: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: Ingo Molnar <mingo@...e.hu>, x86@...nel.org,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Jan Beulich <jbeulich@...ell.com>,
Stable Kernel <stable@...nel.org>
Subject: Re: [PATCH] x86: set PAE PHYSICAL_MASK_SHIFT to match 64-bit
On Thu, 05 Jun 2008 16:21:14 +0100
Jeremy Fitzhardinge <jeremy@...p.org> wrote:
> When a 64-bit x86 processor runs in 32-bit PAE mode, a pte can
> potentially have the same number of physical address bits as the
> 64-bit host ("Enhanced Legacy PAE Paging").
>
the problem on 32 bit is that if you have that much ram, you run out of
lowmem FAST.... so you have bigger problems.
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