On Fri, 2008-09-26 at 08:17 -0700, Linus Torvalds wrote:
>
> On Fri, 26 Sep 2008, Jason Vas Dias wrote:
> >
Hi, Jason
Will you please attach the output of acpidump, dmesg?
From the log it seems that the BIOS gives the incorrect ACPI table.
For example: the 32X/64X address don't match in FADT table.
Of course you can open a new bug and attach the output of acpidump,
dmesg.
http://bugzilla.kernel.org/acpi
thanks
> > There appears to be a serious problem with every 2.6.27-X kernel I've
> > tried - and I've tried quite a few from the linux-2.6, linux-acpi-2.6,
> > and linux-2.6-tip GIT trees, and the latest Fedora 10 kernels over the
> > past few weeks trying to solve this problem:
>
> So which trees work, and which don't? Also, since it seems entirely
> repeatable, this is a prime candidate for "git bisect" - it will be
> eventually faster to do than trying many different trees at random, even
> if you will likely need to reboot/compile about 12 times or so (assuming
> 2.6.27-rc1 is broken, and 2.6.26 works, which it sounds like).
>
> Bisecting really isn't that hard. Get the git tree, do
>
> git bisect start
> git bisect bad v2.6.27-rc1
> git bisect good v2.6.26
>
> and off you go. You don't even need to know a lot about git, there's a few
> quick tutorials out there if you haven't used it. See for example
>
> http://www.kernel.org/doc/local/git-quick.html
>
> which has an example git bisect run, in addition to just initial clone
> insutrctions.
>
> > CPU frequency switching is completely disabled, the 2.2Ghz AMD TL-64
> > Dual Core CPU is stuck at 0.8Ghz, the machine cannot reboot or perform
> > any ACPI actions.
> >
> > There are no obvious failures indicated in the logs, only this:
> >
> > [ 0.000000] ACPI Error (tbfadt-0453): 32/64X address mismatch in "Pm2ControlBlock": [00008800] [0000000000008100], using 64X [20080609]
>
> Hmm. I don't know if it's ACPI-related, but the fact that it cannot even
> reboot etc sure seems to make it likely. Have you made the acpi lists
> aware of it (linux-acpi@xxxxxxxxxxxxxxx and lenb are listed in
> MAINTAINERS)?
>
> Linus
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