Re: Intel PCI-E bridge ACPI resources and possibly related SATA unstability problems on ASUS A8Js

From: Oleg Verych
Date: Thu Jan 25 2007 - 04:55:46 EST


gmane.linux.kernel:
> Hi,

Hallo.

> recently I got my hands on an ASUS A8Js notebook (Core 2 Duo T7200,
> Intel 945 PM PCI-E Chipset, for details see attached log). After booting
> the latest 2.6.20-rc5-git3 kernel (but the same behaviour occurs also with
> the 2.6.19.2, didn't try any other), some strange behaviour can be
> observed.

There were disscussions about mmconfig and what nightmare it brought to
PCI(E) configuration in scope of BIOS, chip bugs. Here's (one of) such:
<http://marc.theaimsgroup.com/?l=linux-kernel&m=116007091004503&w=2>

> At first the following messages appear in the log:
>
> ...
> [ 40.303154] PCI: BIOS Bug: MCFG area at e0000000 is not E820-reserved
> [ 40.303157] PCI: Not using MMCONFIG.
>
> (not sure whether this is really a problem)

I think it may be the major problem.

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