Sorry for delay, On 06/29, David Rientjes wrote: > > On Thu, 28 Jun 2012, Kamezawa Hiroyuki wrote: > > > > It turns out that task->children is not an rcu-protected list so this > > > doesn't work. > > > > Can't we use sighand->lock to iterate children ? > > > > I don't think so, this list is protected by tasklist_lock. Oleg? Yes, you are right, ->siglock can't help. 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