Date: Fri, 31 Oct 2008 13:19:16 -0400
From: Dave Jones <davej@redhat.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>
Subject: Re: sched domains oddness.
Message-ID: <20081031171916.GB8837@redhat.com>
Mail-Followup-To: Dave Jones <davej@redhat.com>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Ingo Molnar <mingo@elte.hu>
References: <20081031162443.GA29885@redhat.com> <1225471911.7803.1596.camel@twins>
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On Fri, Oct 31, 2008 at 05:51:51PM +0100, Peter Zijlstra wrote:
 > On Fri, 2008-10-31 at 12:24 -0400, Dave Jones wrote:
 > > The attached dmesg comes from my dual core laptop running 2.6.27
 > > What's up with all the sched domains transitions at the bottom?
 > > This was just a boot up from power off, no suspend/resume or anything funky.
 > 
 > > CPU0 attaching NULL sched-domain.
 > > CPU1 attaching NULL sched-domain.
 > > CPU0 attaching sched-domain:
 > >  domain 0: span 0-1 level MC
 > >   groups: 0 1
 > >   domain 1: span 0-1 level NODE
 > >    groups: 0-1
 > > CPU1 attaching sched-domain:
 > >  domain 0: span 0-1 level MC
 > >   groups: 1 0
 > >   domain 1: span 0-1 level NODE
 > >    groups: 0-1
 > 
 > 3x
 > 
 > looks like someone is triggering rebuild_sched_domains(), is something
 > poking cpusetfs files or flipping between sched_mc settings?
 
cpusetfs doesn't seem to be mounted, and I can't find anything
obvious touching sched_mc

	Dave

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