From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Malte_Schr=F6der?= Subject: Re: PCI ACPI/IRQ-routing broken on H77 chipset + Ivy Bridge (kernel 3.5-rc7 and earlier) Date: Thu, 19 Jul 2012 20:14:35 +0200 Message-ID: <50084E8B.3070508@gmx.de> References: <5002BC55.3050107@gmx.de> <201207152225.49154.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-pci-owner@vger.kernel.org To: Bjorn Helgaas Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Thomas Gleixner , Galen Seitz List-Id: linux-acpi@vger.kernel.org On 16.07.2012 18:14, Bjorn Helgaas wrote: > [CC +tglx] >=20 > On Sun, Jul 15, 2012 at 2:25 PM, Rafael J. Wysocki wrot= e: >> CC-ing linux-pci and Bjorn. >> >> On Sunday, July 15, 2012, Malte Schr=F6der wrote: >>> Hello, >>> this is yet another try to get someone to look at this ;) >>> >>> I can't get PCI-devices to work on my DH77KC mainboard. I tested th= is >>> using an AVM B1 ISDN card, a Fritz!PCI card and an old 3Com 905c NI= C. >>> I attached some dumps in case it helps. The CPU is a Core i7 3770. >>> >>> PCI hardware is detected by the kernel, but it gives IRQ errors. Us= ing >>> irqpoll allows the PCI card to somewhat work, but it is unreliable. >>> >>> There are some reports in Intel's support forums that also report >>> PCI-problems with this mainboard, but Intel doesn't seem to be >>> interested. So I hope this is something that is fixable on the kern= el side. >>> >>> If there is more information needed, please let me know. >>> I was pointed to https://bugzilla.kernel.org/show_bug.cgi?id=3D43238. I tried the modifications to the DSDT that where proposed there and voil=E0, the 3c905c started to work :) So it seems Intel messed up their ACPI-stuff really bad for this mainboard. I plan to do more testing during the weekend. --=20 Gru=DF Malte Schr=F6der --------------------------------------------------------------------- MalteSch@gmx.de