[Bug 50721] [snb] CPU freqs stay stuck at max after reboot with on-demand governor set - i7-2630QM

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=50721

--- Comment #45 from rocko <rockorequin at hotmail.com> ---
In case it helps, I have seen the cores get stuck at their max frequency on a
couple of occasions recently (in 3.17.2).

On both occasions I killed a long-running CPU-intensive ruby task that was
using mysqld, and afterwards the cores continued running at their turbo
frequency even though the original process no longer showed up with ps -xa and
mysqld was reporting zero percent activity (according to top). I had to kill -9
the mysqld task and restart it to fix the issue.

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