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

[Andi Kleen]

On Mon, Nov 28, 2011 at 09:31:13PM +0100, Nicolas Kalkhof wrote:
> Andi,
> 
> correct. The issue was introduced somewhere between 3.1 final and 3.2-rc1. I've tried to track down the bad commit but so far I haven't been successfull. The only workaround I found is to set the idle boot parameter to mwait and to disable CONFIG_INTEL_IDLE. Somehow the kernel seems to set idle to poll by default - no idea why :-(. I wonder if other mobile sandy bridge cpus are affected as well.

There are only a few changesets affecting drivers/idle

Can you try to git revert 

46bcfad7a819bd17ac4e831b04405152d59784ab
4202735e8ab6ecfb0381631a0d0b58fefe0bd4e2
e978aa7d7d57d04eb5f88a7507c4fb98577def77

?

-Andi
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