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Subject: Re: [BUG] TASK_DEAD task is able to be woken up in special
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From: Peter Zijlstra <peterz@infradead.org>
To: Ingo Molnar <mingo@elte.hu>
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Date: Tue, 24 Jan 2012 11:11:25 +0100
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On Wed, 2012-01-18 at 10:42 +0100, Ingo Molnar wrote:
> Well, but does the -rt kernel suffer from the same race? 

Yes it does

> 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().