Re: BUG?: "Cannot map mmconfig aperture"

From: Thomas Gleixner
Date: Thu Feb 21 2008 - 02:54:31 EST


On Wed, 20 Feb 2008, Diego Calleja wrote:

> I get the following new message in my dmesg:
>
> [ 0.155476] ACPI: bus type pci registered
> [ 0.155567] PCI: Found Intel Corporation 945G/GZ/P/PL Express Memory Controller Hub with MMCONFIG support.
> [ 0.161149] PCI: Cannot map mmconfig aperture for segment 0
> [ 0.161181] PCI: Using configuration type 1
> [ 0.165980] ACPI: EC: Look up EC in DSDT
>
> when previously i'd have:
>
> [ 0.156577] PCI: Found Intel Corporation 945G/GZ/P/PL Express Memory Controller Hub with MMCONFIG support.
> [ 0.166403] PCI: Using MMCONFIG at e0000000 - efffffff
> [ 0.166407] PCI: Using configuration type 1
> [ 0.171548] ACPI: EC: Look up EC in DSDT
>
>
> No idea if this is a regression or not, or what it means, the system works well.
> git-bisect says the problem cames from:
>
> commit c31c7d4844ea4817692ae16bf70f9c96c05a50eb
> Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Date: Mon Feb 18 20:54:14 2008 +0100
>
> x86: CPA, fix alias checks

Hmm, that's confusing. Can you please provide a complete boot log ?

Thanks,

tglx
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