Re: Stop machine threads are getting preemted by the rt periodenforcement

[Peter Zijlstra]

On Wed, 2008-06-04 at 11:07 -0700, Max Krasnyansky wrote:
> Peter, Ingo,
> 
> Take a look at the report below (came up during isolcpu= remove discussions).
> 
> It looks like stop_machine threads are getting forcefully preempted because
> they exceed their RT quanta. It's strange because rt period is pretty long.
> But given that disabling rt period logic solves the issue the machine was not
> really stuck.

Yeah, I know, I'm already looking at this

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