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

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=77201

--- Comment #22 from Viresh Kumar <viresh.kumar@linaro.org> ---
Hi,

Have you missed the most important log? Offline/online with
Hang..

In your case both CPUs share clock line and so it doesn't matter
which cpu you play with.

Sent from my iPad

> On 10-Jun-2014, at 6:14 pm, bugzilla-daemon@bugzilla.kernel.org wrote:
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=77201
> 
> --- Comment #17 from registosites@hotmail.com ---
> I have done as asked and added the ccflags-y to the top of
> drivers/cpufreq/Makefile and enabled the specified config options.
> 
> I have separated the logs in 3 files: boot log, governor change
> (ondemand->performance) log and cpu offline/online log.
> 
> When using the performance governor, cpu offline/online works fine, but if
> afterterwards I try to change the governor back to ondemand the machine hangs,
> it doesn't matter for which cpu I try to change the governor first.
> 
> I'm also attaching the config I used, just in case anyone wants to check which
> config options were used.
> 
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