Re: CPU scheduler weirdness?

From: Peter Zijlstra
Date: Fri Sep 04 2009 - 04:40:46 EST

On Thu, 2009-09-03 at 23:57 +0200, Marton Balint wrote:
> > sched: fine-tune SD_MC_INIT:
> > 14800984706bf6936bbec5187f736e928be5c218
> >
> > If I add again the removed SD_BALANCE_NEWIDLE to flags, then everything works
> > as expected. So what would be the correct fix for this bug? Revert the patch?
> > Or just add SD_BALANCE_NEWIDLE to flags?
> Ingo, Peter, could any of you guys have a look at the commit that caused
> this bug? Is it OK to revert it? Or a fix somewhere else is necessary? I'm
> pushing this because I hope that this bug will get fixed in the upcoming
> stable kernel...

I'm fine with re-adding SD_BALANCE_IDLE and SD_WAKE_IDLE on SMT/MC/CPU

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