Re: [RFC patch 2/5] smpboot: Provide infrastructure for percpuhotplug threads

[Paul E. McKenney]

On Thu, Jun 14, 2012 at 03:01:27PM +0200, Peter Zijlstra wrote:
> On Thu, 2012-06-14 at 05:59 -0700, Paul E. McKenney wrote:
> > Yep, starvation.
> 
> What's the particular starvation case?

RCU callback processing consumes the entire CPU in RCU_BOOST case where
processing runs at real-time priority.  This is analogous to RT throttling
in the scheduler.

							Thanx, Paul

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