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

Peter Zijlstra
2012-01-24T10:11:40Z

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().