Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755671Ab1CQVWn (ORCPT ); Thu, 17 Mar 2011 17:22:43 -0400 Received: from ogre.sisk.pl ([217.79.144.158]:42989 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755600Ab1CQVWj (ORCPT ); Thu, 17 Mar 2011 17:22:39 -0400 From: "Rafael J. Wysocki" To: Yinghai Lu , Sarah Sharp Subject: Re: [RFT][PATCH] PCI / ACPI: Do not require MSI support for PCIe native features Date: Thu, 17 Mar 2011 22:22:33 +0100 User-Agent: KMail/1.13.6 (Linux/2.6.38+; KDE/4.6.0; x86_64; ; ) Cc: linux-pci@vger.kernel.org, LKML , Jesse Barnes , ACPI Devel Mailing List , Len Brown , Matthew Garrett References: <201103052254.48515.rjw@sisk.pl> <201103170119.17647.rjw@sisk.pl> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201103172222.33336.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1421 Lines: 40 On Thursday, March 17, 2011, Yinghai Lu wrote: > 2011/3/16 Rafael J. Wysocki : > > On Tuesday, March 15, 2011, Sarah Sharp wrote: > >> On Tue, Mar 15, 2011 at 01:00:17AM +0100, Rafael J. Wysocki wrote: > >> > Well, I must admit I have no idea what the problem is. OK, in addition to the > >> > above changes, please replace the "pci_ext_cfg_avail(root->bus->self)" in the > >> > same file with "true" and see if _that_ helps. > >> > >> Yay, that worked! dmesg is attached. > > > > Good, at least we know what the problem is, now we only have to find the root > > cause. ;-) > > > > So, pci_ext_cfg_avail(root->bus->self) returns 0 on your machine, which is kind > > of unexpected (to put it lightly), so very likely we have uncovered a bug > > in the init code. > > > > Unfortunately, I may not be able to take care of this issue for the next few > > days, I'll let you know when I get back to it. > > her .config does not define PCI_MMCONFIG > > # > # Bus options (PCI etc.) > # > CONFIG_PCI=y > CONFIG_PCI_DIRECT=y > # CONFIG_PCI_MMCONFIG is not set Ah, good catch, thanks! @Sarah: you need to set that for PCI Express to work in general. Thanks, Rafael -- 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/