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

From: Martin Drab
Date: Thu Jan 25 2007 - 11:57:25 EST


On Thu, 25 Jan 2007, Oleg Verych wrote:
> On Thu, Jan 25, 2007 at 01:28:56PM +0100, Martin Drab wrote:
> > On Thu, 25 Jan 2007, Oleg Verych wrote:
> >
> > > gmane.linux.kernel:
> > > > 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.
> >
> > Hmm, it may be. Was there suggested any solution (or at least proposal)
> > that I may try?
>
> Try fix BIOS bugs: <http://permalink.gmane.org/gmane.linux.kernel/462632>

I'm not sure what do you mean by "fix BIOS bugs", but I've tried the
automatic tests of the LFDKr1 and it seemd to have pointed out a lot of
failures and warnings. :( For detailed results see the files submitted to
the kernel bugzilla report #7883 here:

http://bugzilla.kernel.org/show_bug.cgi?id=7883

Martin
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