Re: [BUG] TASK_DEAD task is able to be woken up in special condition

[Ingo Molnar]

* Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> > It can generate delays at the exact same place, and can 
> > generate much longer delays than an SMI, if a high-prio RT 
> > task comes along.
> 
> No it can't, since do_exit() plays silly games with 
> preempt_disable().

ok, it being a critical section on both -rt and vanilla upstream 
explains it.

Thanks,

	Ingo
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