cpufreq broken on core2duo

Evren Yurtesen yurtesen at ispro.net
Wed Jun 4 23:09:06 UTC 2008


Roland Smith wrote:
> On Thu, Jun 05, 2008 at 08:33:24AM +1000, Andrew Snow wrote:
>> Here's another one:
>> CPU: Intel(R) Xeon(R) CPU  E5410  @ 2.33GHz
>> cpu0: <ACPI CPU> on acpi0
>> est0: <Enhanced SpeedStep Frequency Control> on cpu0
>> est: CPU supports Enhanced Speedstep, but is not recognized.
>> est: cpu_vendor GenuineIntel, msr 720072006000720
>> device_attach: est0 attach returned 6
>> p4tcc0: <CPU Frequency Thermal Control> on cpu0
>  
> I had this on a new core2 quad. Updating to a recent 7-STABLE fixed the
> issue for me.

Did any of you tried chkfreq which comes with acpi_ppc 
http://www.spa.is.uec.ac.jp/~nfukuda/software/ to check if the cpu frequency is 
actually changing?

Thanks,
Evren


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