Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754244Ab2FYJHg (ORCPT ); Mon, 25 Jun 2012 05:07:36 -0400 Received: from mail4-relais-sop.national.inria.fr ([192.134.164.105]:52116 "EHLO mail4-relais-sop.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752667Ab2FYJHe (ORCPT ); Mon, 25 Jun 2012 05:07:34 -0400 X-IronPort-AV: E=Sophos;i="4.77,471,1336341600"; d="scan'208";a="148649625" Message-ID: <4FE82A54.6080307@inria.fr> Date: Mon, 25 Jun 2012 11:07:32 +0200 From: Brice Goglin User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.4) Gecko/20120510 Icedove/10.0.4 MIME-Version: 1.0 To: Yinghai Lu CC: Brice Goglin , Bjorn Helgaas , Ulrich Drepper , jbarnes@virtuousgeek.org, Linux Kernel Mailing List , lenb@kernel.org, x86@kernel.org, linux-pci@vger.kernel.org Subject: Re: SNB PCI root information References: <4FE22B28.9020402@gmail.com> <4FE2B788.3070505@gmail.com> <4FE41B3E.7080609@gmail.com> <4FE4D7B7.8000004@gmail.com> In-Reply-To: X-Enigmail-Version: 1.4.1 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1640 Lines: 41 Le 22/06/2012 22:41, Yinghai Lu a ?crit : > On Fri, Jun 22, 2012 at 1:38 PM, Brice Goglin wrote: >> Le 22/06/2012 19:28, Yinghai Lu a ?crit : >>> On Fri, Jun 22, 2012 at 12:14 AM, Brice Goglin wrote: >>> >>>>> BIOS _PXM return 0 for both pci root buses? >>>>> >>>> Here's dmesg. >>>> I can't say for sure whether _PXM returns 0 since I don't know how to >>>> read all this :) But Linux puts the first socket cpumap in >>>> /sys/bus/pci/devices/*/local_cpus (and that's wrong according to the >>>> motherboard manual and according to the performance we see). >>>> >>> hi, looks like you system bios does not provide _PXM for the root bus. >>> >> So why does Linux say that all buses are close to socket 0 instead of >> close to everything as usual? > if (bus && node != -1) { > #ifdef CONFIG_ACPI_NUMA > if (pxm >= 0) > dev_printk(KERN_DEBUG, &bus->dev, > "on NUMA node %d (pxm %d)\n", node, pxm); > #else > dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node); > #endif > } > > so can you boot with "debug ignore_loglevel" ? > I can't find anything relevant in the debug log. The code has changed a lot since my old SLES11 but I don't see any old message either. I guess "bus && node != -1 && pxm>=0" evaluates to false. Brice -- 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/