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

[Roland McGrath]

> 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/