Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752580AbbBYIEB (ORCPT ); Wed, 25 Feb 2015 03:04:01 -0500 Received: from mail-la0-f43.google.com ([209.85.215.43]:34565 "EHLO mail-la0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750764AbbBYID6 (ORCPT ); Wed, 25 Feb 2015 03:03:58 -0500 MIME-Version: 1.0 In-Reply-To: References: Date: Wed, 25 Feb 2015 18:03:56 +1000 Message-ID: Subject: Re: regression in 4.0.0-rc1 with r8169 ethernet From: Dave Airlie To: Bjorn Helgaas Cc: LKML , Jiang Liu , Rafael Wysocki , "linux-pci@vger.kernel.org" , "linux-acpi@vger.kernel.org" , Thomas Gleixner , Lv Zheng Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1511 Lines: 35 > * v3.19 ignored [io 0x0cf8-0x0cff], but v4.0 includes it. I think > it's wrong to include it because that's the configuration space > address/data registers, so it's consumed by the host bridge and not > produced on the downstream side. > > * v3.19 includes [mem 0x7ff00000-0xfebfffff], but v4.0 does not. This > is what's screwing up the devices. > > I think all the windows should be marked as ACPI_PRODUCER in _CRS > since the space is "produced" on the downstream side of the bridge. > The [io 0x0cf8-0x0cff] region should probably be marked > ACPI_CONSUMER, and maybe that accounts for why v3.19 ignores it. But > I haven't found the code that does that yet. > > I suspect this is all related to the ACPI resource parsing rework. I > looked through that briefly, but no issues jumped out at me, so this > is just a heads-up in case it is obvious to you guys. > > Dave, it'd be useful if you could collect an acpidump so we can look > at the _CRS data in more detail. acpidump fails here with a /dev/mem warning in the kernel, now I'm not near the machine again until next week most likely, so I only have ssh for now, and the kernel it is running for which I don't have the source anymore! is there any of tables from /sys I can grab instead? Dave. -- 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/