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SubjectRegression in 2.6.27-rc2 in acpi_processor_init()
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I got a regression when updated from 2.6.27-rc1 ro
2.6.27-rc2. The noticeable symptom is the powernow-k8
driver stopped working because the call to
acpi_processor_register_performance() is returning
-EINVAL.

Digging into the code a bit more, that's occurring
because acpi_processor_ppc_status is not set.
That should be set in acpi_processor_init(), but
that function is failing to register the ACPI
processor driver.

I've dug through the code and can't see why
that call would fail. It doesn't look like there
were any changes between 2.6.27-rc1 and 2.6.27-rc2,
but I may have missed something.

Any advice or suggestions in debugging this
appreciated.

-Mark Langsdorf
Operating System Research Center
AMD



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