linux-kernel - Re: PCI ACPI/IRQ-routing broken on H77 chipset + Ivy Bridge (kernel 3.5-rc7 and earlier)

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Message-ID: <CAErSpo6Ka6XBakVZH7ge-==XY86FrOHP_dqGoa+zAFNgnnnFTA@mail.gmail.com>
Date:	Mon, 16 Jul 2012 10:14:56 -0600
From:	Bjorn Helgaas <bhelgaas@...gle.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Malte Schröder <maltesch@....de>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: PCI ACPI/IRQ-routing broken on H77 chipset + Ivy Bridge (kernel
 3.5-rc7 and earlier)

[CC +tglx]

On Sun, Jul 15, 2012 at 2:25 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
> CC-ing linux-pci and Bjorn.
>
> On Sunday, July 15, 2012, Malte Schröder 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 this
>> using an AVM B1 ISDN card, a Fritz!PCI card and an old 3Com 905c NIC.
>> 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. Using
>> 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 kernel side.
>>
>> If there is more information needed, please let me know.
>>
>>
>>
>
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