Bug#637659: Linux kernel: 2.6.32.42: (Debian Bug#637659): pci 0000:00:00.0: BAR 0: address space collision on of device [0xc8000000-0xcfffffff]

[Jonathan Nieder <jrnieder@gmail.com>]

Hi Paul,

Paul Menzel wrote:

> Commit 29cf7a30 [3] addresses this issue for my board by adding a quirk.
>
>         commit 29cf7a30f8a0ce4af2406d93d5a332099be26923
>         Author: Paul Menzel <paulepanter@users.sourceforge.net>
>         Date:   Wed Aug 31 17:07:10 2011 +0200
>
>             x86/PCI: use host bridge _CRS info on ASUS M2V-MX SE
[...]
> Unfortunately I do not have outputs from `dmesg` anywhere from older
> Linux versions so I do not know when this problem started. I am pretty
> sure though that they have not been there since the beginning.

Yep, the regression fixed by 29cf7a30 was likely introduced by
v2.6.31-rc1~1 (Revert "PCI: use ACPI _CRS data by default",
2009-06-24).

A partial fix was v2.6.34-rc1~287^2~2 (x86/PCI: use host bridge _CRS
info by default on 2008 and newer machines, 2010-02-23), which does
not seem to be part of v2.6.32.y (and Debian squeeze) but probably
should be.

Hope that helps,
Jonathan