RE: WARNING: at drivers/base/sys.c:183 sysdev_driver_register+0x75/0x12e()

From: Langsdorf, Mark
Date: Tue Apr 22 2008 - 12:51:52 EST


> From: cpufreq-bounces@xxxxxxxxxxxxxxxxxx
> [mailto:cpufreq-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of Jiri Kosina
> Sent: Tuesday, April 22, 2008 9:12 AM
> To: davej@xxxxxxxxxxxxxxxxx; lenb@xxxxxxxxxx
>
> Hi,
>
> I am getting the acpi-cpufreq-drivercore warning below when booting
> current git (807501475)
>
> powernow-k8: Found 1 AMD Athlon(tm) 64 Processor 3000+
> processors (1 cpu
> cores) (version 2.20.00)
> powernow-k8: BIOS error - no PSB or ACPI _PSS objects
> sysdev: class cpu: driver (ffffffff8057fd10) has already been
> registered to a class, something is wrong, but will forge on!
>
Why is the acpi-cpufreq driver trying to
instantiate on an AMD processor? It shouldn't
do that.

PowerNow! failed to load because the BIOS wasn't
set up correctly. But the acpi-cpufreq driver
shouldn't have loaded at all.

-Mark Langsdorf
Operating System Research Center
AMD

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