powernow-k8 trouble on FC2T3
Dave Jones
davej at redhat.com
Thu May 13 14:37:54 UTC 2004
On Thu, 2004-05-13 at 14:16, David Wolinski wrote:
> I've got a laptop (Hypersonic model Aviator AX6 with Athlon 64)
> running Fedora Core 2 Test 3 (kernel 2.6.5-1.327) and I was interested in
> using CPU frequency scaling since /proc/cpuinfo shows my CPU at its lower
> speed. So I rebuilt a custom kernel with the CPU_FREQ options selected.
> When I boot using the new kernel and then add the powernow-k8 module to
> the kernel using
>
> > modprobe powernow-k8
>
> I see in /var/log/messages the lines
>
> powernow-k8: Found 1 AMD Athlon 64 / Opteron processors (version 1.00.08b)
> powernow-k8: BIOS error: numpst must be 1
>
> and as far as I can tell, nothing else happens.
>
> Am I doing something wrong, or is there a fix for this issue?
Later kernels should have this fixed (it falls back to ACPI tables
when the PST tables are bogus)
Dave
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