From: "Adam J. Richter" <adam@yggdrasil.com>
Date: Mon, 10 Mar 2003 11:22:16 -0800
Message-Id: <200303101922.LAA05449@adam.yggdrasil.com>
To: mbligh@aracnet.com
Subject: Re: 2.5.64bk5: X86_PC + HIGHMEM boot failure
Cc: apw@shadowen.org, linux-kernel@vger.kernel.org
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1995
Lines: 42

On Mon, 10 Mar 2003,Martin J. Bligh wrote:
>> [...]  I guess there still is the minor issue that
>> either CONFIG_NUMA should work with X86_PC + HIGHMEM (even
>> on machines without high memory) or else CONFIG_NUMA
>> should not be selectable in this case, but that's obviously
>> a bug of much less importance.

>Right, it *should* work ... Andy wrote the patches to enable that so 
>that distros could use a common kernel. Maybe it ought to depend on 
>CONFIG_SMP + HIGHMEM_64GB as well, which would cut out most of the 
>confusion, but still make it useful for distros. 

	I just verified that the problem also occurs with NUMA +
HIGHMEM_64GB (i.e., it is not limited to HIGHMEM_4GB).

	By the way, HIGHMEM_64GB without NUMA gets a lot father, but
still experiences memory corruption, probably same bug that caused me
to downgrade to HIGHMEM_4G months ago (i.e., probably not related to
this NUMA problem).

>> 	Sorry for my misunderstanding of the CONFIG_NUMA configution
>> options.

>No prob ... should probably be made more obvious. Are you by any chance
>doing "yes | make oldconfig"? That's the obvious way to switch it on
>by chance ... if so, can I recommend doing "yes '' | make oldconfig"
>instead? That'll take the defaults, and work much better in general.

	I want a kernel that is as broadly hardware compatible as
possible and can take advantage of as much hardware as possible, in
that order.  So, I guess I hope to reactivate CONFIG_NUMA once this
problem is solved.

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