[Bug 77201] CPU online hangs, works when powernow-k8 is UN-loaded

[email protected]
Newsgroups org.kernel.vger.cpufreq
Message-ID <[email protected]/>
https://bugzilla.kernel.org/show_bug.cgi?id=77201

--- Comment #74 from Rafael J. Wysocki <[email protected]> ---
(In reply to Viresh Kumar from comment #72)
> (In reply to Viresh Kumar from comment #45)
> > I don't have a clue why does it depend on that :(
> 
> Now, I know why. This can very much be some ACPI issue considering so much
> dependency it has on it and I am not good at ACPI :(
> 
> 631e8ac powernow-k8: Add a kconfig dependency on acpi-cpufreq

It looks like the relevant routine doesn't do anything ACPI-related
at all.  It accesses MSRs directly  it seems.

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