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Message-ID: <3908561D78D1C84285E8C5FCA982C28F1E06EDDD@ORSMSX108.amr.corp.intel.com>
Date:	Wed, 27 Feb 2013 17:50:49 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	Don Morris <don.morris@...com>,
	"H. Peter Anvin" <hpa@...or.com>, Tejun Heo <tj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Renninger <trenn@...e.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Tim Gardner <tim.gardner@...onical.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"Sakkinen, Jarkko" <jarkko.sakkinen@...el.com>,
	"tangchen@...fujitsu.com" <tangchen@...fujitsu.com>
Subject: RE: sched: CPU #1's llc-sibling CPU #0 is not on the same node!

>   b. it will be freed to slub before run time.
>       like init code and initrd disk.

If this is a problem - I'd be inclined to disable the code that frees it. It's only
a few hundred KB of code, and possibly a few MB of initrd. Too small to
worry about on a hot pluggable server.

> In that case, so they should just boot system with numa=off.

But we will still care about NUMA locality.

-Tony
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