On Tue, Jun 24, 2014 at 06:47:38AM +0000, Tony Lu wrote: > >That pthread_exit() is the problem; this results in: > > > >29456 pts/23 Zl 0:00 | \_ [hello] <defunct> > > > >You want to wait for the threads to complete using pthread_join(). > > > >I suspect the defunct state hides the process. > > Yes, using pthread_join() can workaround this problem. > Does that mean the parent thread can not exit before the child threads? It > still seems like a perf bug.
So we scan /proc at record start to acquire the state for the existing tasks, it might be defunct tasks simply aren't there anymore, in which case there's nothing we can do. But I haven't checked.. That said, yes it would be nice if we could cure this. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
