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Message-ID: <20081031171916.GB8837@redhat.com> Date: Fri, 31 Oct 2008 13:19:16 -0400 From: Dave Jones <davej@...hat.com> To: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Linux Kernel <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu> Subject: Re: sched domains oddness. 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 -- http://www.codemonkey.org.uk -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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