Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753146AbYJaR6c (ORCPT ); Fri, 31 Oct 2008 13:58:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752219AbYJaR6Q (ORCPT ); Fri, 31 Oct 2008 13:58:16 -0400 Received: from mga09.intel.com ([134.134.136.24]:36263 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752163AbYJaR6Q (ORCPT ); Fri, 31 Oct 2008 13:58:16 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.33,523,1220252400"; d="scan'208";a="457702663" Date: Fri, 31 Oct 2008 10:58:14 -0700 From: Suresh Siddha To: Dave Jones , Suresh Siddha , Peter Zijlstra , Linux Kernel , Ingo Molnar Cc: venkatesh.pallipadi@intel.com Subject: Re: sched domains oddness. Message-ID: <20081031175813.GC10468@linux-os.sc.intel.com> References: <20081031162443.GA29885@redhat.com> <1225471911.7803.1596.camel@twins> <20081031170928.GB10468@linux-os.sc.intel.com> <20081031171721.GA8837@redhat.com> <20081031173737.GA11443@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081031173737.GA11443@redhat.com> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1607 Lines: 52 On Fri, Oct 31, 2008 at 10:37:37AM -0700, Dave Jones wrote: > Even curiouser.. When I unplug AC and replug it, it happens again, but slightly > differently.. > > 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 CPU > groups: 0-1 > domain 2: 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 CPU > groups: 0-1 > domain 2: span 0-1 level NODE > groups: 0-1 > 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 > > > Note how the CPU level doesn't show up in the 2nd case. This is def coming from sched_mc_power_savings. Some battery script or something is getting notified and setting this value. Can you do a grep from / for sched_mc_power_savings ? > This still doesn't explain the flip-flop I saw just from booting, > as that was on AC the whole time. Boot messages are def something not related to sched_mc_power_savings. thanks, suresh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/