Re: sched domains oddness.

From: Dave Jones
Date: Fri Oct 31 2008 - 13:19:45 EST


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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