E7400 Speedstep support?

[pluknet]

2009/2/24 Daniel O'Connor <doconnor at gsoft.com.au>:
> Hi,
> I recently got a new Intel E7400 based system and dmesg reports..
> est0: <Enhanced SpeedStep Frequency Control> on cpu0
> est0: Guessed bus clock (high) of 37 MHz
> est0: Guessed bus clock (low) of 466 MHz
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 6164a2206004a22
> device_attach: est0 attach returned 6
> p4tcc0: <CPU Frequency Thermal Control> on cpu0
> cpu1: <ACPI CPU> on acpi0
> est1: <Enhanced SpeedStep Frequency Control> on cpu1
> est1: Guessed bus clock (high) of 37 MHz
> est1: Guessed bus clock (low) of 466 MHz
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 6164a2206004a22
> device_attach: est1 attach returned 6
> p4tcc1: <CPU Frequency Thermal Control> on cpu1
>
> I'm running 7.1-STABLE and I was wondering how hard it is to add support for
> est for this CPU?
>

May those error messages be BIOS related?
>From my E7200 (well, this is from -current):

cpu0: <ACPI CPU> on acpi0
ACPI Warning (tbutils-0243): Incorrect checksum in table [OEMB] -  CF, should be
 C6 [20070320]
est0: <Enhanced SpeedStep Frequency Control> on cpu0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
cpu1: <ACPI CPU> on acpi0
est1: <Enhanced SpeedStep Frequency Control> on cpu1
p4tcc1: <CPU Frequency Thermal Control> on cpu1

dev.cpu has also expected values.

-- 
wbr,
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