[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 #95 from Viresh Kumar <viresh.kumar@linaro.org> ---
(In reply to Srivatsa S. Bhat from comment #94)
> Hmm, right. Ok, then I guess we'll just have to try and fix the build errors
> in these commits and try your tests on them. Viresh might already be working
> on doing that, but if not, I'll try to fix them for you.

I haven't done anything yet and don't know how to get these fixed.. I have gone
through the series which played with this stuff and looks there were way too
many issues reported by multiple people.

https://lkml.org/lkml/2014/1/21/512

Anyway Mauro has already verified that reverting these two commits fixes our
issues over 3.14..

> 20d1c86 sched/clock, x86: Rewrite cyc2ns() to avoid the need to disable IRQs
> 57c67da sched/clock, x86: Move some cyc2ns() code around

So, can we get peter in the discussion here now ? We can tell him that things
aren't bisectable and so don't know which of these has broken things..

--
viresh

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