bad ACPI tables for Dothan?

[Jeremy Fitzhardinge <jeremy@goop.org>]

On Wed, 2004-07-28 at 01:55 +0200, Frederik Reiss wrote:
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> Jeremy Fitzhardinge schrieb:
> | Ah, OK, a bit more information.  Looks like there's a strange table in
> | your ACPI.  See what this shows.
> |
> | 	J
> Hi again, here are the requested informations:
> 
> Jul 28 01:45:17 localhost kernel: invalid encoded frequency: ffff (0kHz)
> != 25500000
> Jul 28 01:45:17 localhost kernel: speedstep-centrino: no table support
> for CPU model "Intel(R) Pentium(R) M processor 1.50GHz":
> Jul 28 01:45:17 localhost kernel: speedstep-centrino: try compiling with
> CONFIG_X86_SPEEDSTEP_CENTRINO_ACPI enabled

OK, I'm out of my depth.  I really don't know anything about ACPI or
these tables, but they look corrupted.  It seems that you have an entry
for a 25GHz CPU...

I'm CC:ing the cpufreq list, since someone there might have better
suggestions.


cpufreq folks: Frederik has a Tosiba M30-851 laptop with this CPU:

vendor_id       : GenuineIntel
cpu family      : 6
model           : 13
model name      : Intel(R) Pentium(R) M processor 1.50GHz
stepping        : 6
cpu MHz         : 1496.370
flags           : fpu vme de pse tsc msr mce cx8 apic sep mtrr pge mca
cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe tm2 est
bogomips        : 2957.31

In theory the ACPI tables should work fine for this Dothan, but they
seem corrupt.  It seems that centrino_cpu_init_acpi() is getting a
0xffff control register value, and a corresponding 25GHz CPU core speed.
I'm assuming there's someone who knows what this means.

	J