On 12/21, Frederic Weisbecker wrote: > > On Wed, Dec 21, 2011 at 11:24:13AM -0800, Mandeep Singh Baines wrote: > > > > If you call exec from a thread other than g, g is now unlinked. So > > "t != g" will always be true. If you then pthread_create, you now > > have two threads so "t != __prev" will also always be true. So > > you now have an infinite loop. > > Oh you're right. > > But then we can't use t != t->group_leader because that assumes while_each_thread() > started on the leader. Yes, this can't work. Besides, we need more burriers to rely on the ->group_leader check. See http://marc.info/?t=127688987300002 in particular, http://marc.info/?l=linux-kernel&m=127714242731448 I think this should work, but then we should do something with the users like zap_threads(). Oleg. -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
