Message-ID: <46374C94.8020204@rtr.ca>
Date: Tue, 01 May 2007 10:20:04 -0400
From: Mark Lord <lkml@rtr.ca>
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To: William Lee Irwin III <wli@holomorphy.com>
Cc: Andi Kleen <ak@suse.de>, ebiederm@xmission.com, patches@x86-64.org,
       linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [30/30] x86_64: Add missing !X86_PAE dependincy to the
 2G/2G split.
References: <20070501557.815359000@suse.de> <20070501035829.1C93D13CAF@wotan.suse.de> <20070501043735.GR31925@holomorphy.com> <46374171.1050009@rtr.ca> <20070501141714.GT19966@holomorphy.com>
In-Reply-To: <20070501141714.GT19966@holomorphy.com>
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William Lee Irwin III wrote:
>..
> On Tue, May 01, 2007 at 09:32:33AM -0400, Mark Lord wrote:
>> You need to go search the archives and read the *extensive* thread
>> on this from when it was introduced.  Lots of high profile kernel
>> developers were in on this one.
> 
> Various good points were raised. The NX bit requiring
> 3-level pagetables suggests that 3-level pagetables without highmem
> would be valuable, at which point the unaligned splits to avoid highmem
> with 3-level pagetables gain additional relevance. I'll queue that up
> to be written along with split pmd affairs, and check for features
> dependent on 4-level pagetables, too.

Excellent!  That would be super to have in there, William.

Cheers!
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