linux-kernel - Re: [tip:sched/core] sched/numa: Rewrite the CONFIG

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Date:	Thu, 10 May 2012 19:44:42 +0200
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	mingo@...nel.org, torvalds@...ux-foundation.org,
	cmetcalf@...era.com, tony.luck@...el.com, sivanich@....com,
	akpm@...ux-foundation.org, ralf@...ux-mips.org,
	greg.pearson@...com, ink@...assic.park.msu.ru, tglx@...utronix.de,
	rth@...ddle.net, kamezawa.hiroyu@...fujitsu.com, paulus@...ba.org,
	linux-kernel@...r.kernel.org, hpa@...or.com, anton@...ba.org,
	lethal@...ux-sh.org, davem@...emloft.net, benh@...nel.crashing.org,
	dhowells@...hat.com, mattst88@...il.com, fenghua.yu@...el.com,
	linux-tip-commits@...r.kernel.org
Subject: Re: [tip:sched/core] sched/numa: Rewrite the CONFIG_NUMA sched
 domain support

On Thu, 2012-05-10 at 10:30 -0700, Yinghai Lu wrote:
> not sure if this one or other is related....
> 
> got this from 8 socket Nehalem-ex box.
> 
> [   25.549259] mtrr_aps_init() done
> [   25.554298] ------------[ cut here ]------------
> [   25.554549] WARNING: at kernel/sched/core.c:6086 build_sched_domains+0x1a9/0x2d0() 

oops,.. could you get me the output of:

 cat /sys/devices/system/node/node*/distance

for that machine? I'll see if I can reproduce using numa=fake.

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