Re: [RFC,PATCH 5/5] exec: RT sub-thread can livelock and monopolize CPU on exec

> The group_leader can sleep before it enters exit_notify(). In that case
> wait_task_inactive() returns, and we still need some polling to wait for
> EXIT_ZOMBIE.

It could be a loop as now with yield.  It's still polling, but only one
poll per wakeup of the target.

> Yes sure. But in any case I think we should avoid polling, we need some
> notification from exit_notify().

Indeed.


Thanks,
Roland
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