linux-kernel - Re: Are we properly prepared to handle 3 Socket setups?

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Message-ID: <p73absxj7qh.fsf@bingen.suse.de>
Date:	12 Aug 2007 13:46:30 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	"Jesper Juhl" <jesper.juhl@...il.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: Are we properly prepared to handle 3 Socket setups?

"Jesper Juhl" <jesper.juhl@...il.com> writes:

> I just saw a news article (http://www.theinquirer.net/?article=41610)
> about a 3 Socket Opteron motherboard and couldn't help but wonder if
> we are prepared to deal with such a beast, so I thought I'd inform
> everyone :-)

It should work. Non power of two cores per socket used to be problematic
though, but that has been also fixed.

> nr_of_cpus being an even number... In any case it would be an
> interresting box to test on, so for those of you employed by big
> business with the cash to purchase a test box, it would at least be an
> interresting one to add to the mix :)

You can already test it by either using qemu/xen/etc. or by 
off lining one of your cores if you have more than 2.

-Andi
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