Re: Too many poll_idle cpu calls in kernel 3.2 rc-series

[Andi Kleen]

"Nicolas Kalkhof" <nkalkhof@xxxxxx> writes:

> the kernel v3.2 series shows excessive poll_idle calls during system idle phases causing the cpu
> (mobile i7 2620M) to heat up and draw additional 10% more power. All kernel versions between
> 3.2-rc1 and 3.2-rc3 are affected. Perf Top and Powertop both show the same issue.
> I've posted a similar bug report before: http://marc.info/?l=linux-kernel&m=132164909313594&w=2
> and used perf top -U to verify the poll_idle calls as requested.

So it didn't happen with earlier kernels? 
I would suggest a git bisect in this case.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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