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From: Andi Kleen <ak@suse.de>
To: "Keith Mannthey" <kmannth@gmail.com>
Cc: "Dave Jones" <davej@redhat.com>,
	torvalds@osdl.org, discuss@x86-64.org, akpm@osdl.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] [20/82] i386: Panic the system when a NUMA kernel doesn't run on IBM NUMA
Date: Sat, 24 Jun 2006 03:15:56 +0200	[thread overview]
Message-ID: <200606240315.56365.ak@suse.de> (raw)
In-Reply-To: <a762e240606231803p72e4e684v42cf27cdaf8fb30f@mail.gmail.com>


>
> I agree that i386 CONFIG_NUMA is only ment to boot on small subset of
> hw but there is litte motivation to boot a numa kernel on a non-numa
> box.  I am supprised that no one has enabled i386 AMD NUMA (the one
> numa box that regular people have access to).

I never bothered because 32bit NUMA with lowmem only on node 0 
isn't very useful. Using it with 64bit makes much more sense.

> > I'm sure someone will bring up now an example where their non Summit
> > machine booted with CONFIG_NUMA, but they were just extremly lucky
> > and unlikely to be for very long.
>
> Current Summit HW  (x460) dosen't use/have a cyclone.  There are
> patches submitted to this list to support it's i386 NUMA boot.

Hmm, that's a good point. When the detection doesn't work
reliable it's no good.

Ok, Linus please don't apply that patch for now then.

-Andi

      reply	other threads:[~2006-06-24  1:15 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-06-24  0:19 [PATCH] [20/82] i386: Panic the system when a NUMA kernel doesn't run on IBM NUMA Andi Kleen
2006-06-24  0:38 ` Dave Jones
2006-06-24  0:42   ` Andi Kleen
2006-06-24  1:03     ` Keith Mannthey
2006-06-24  1:15       ` Andi Kleen [this message]

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