On 08/03, Roland McGrath wrote: > > > There is a couple of subtle checks which were needed to handle ptracing from > > the same thread group. This was deprecated a long ago, imho this code just > > complicates the understanding. > > Looks ok to me.
Thanks! > > And, the "->parent->signal->flags & SIGNAL_GROUP_EXIT" check in > > exit_notify() > > is not right. SIGNAL_GROUP_EXIT can mean exec(), not exit_group(). This > > means > > ptracer can lose a ptraced zombie on exec(). Minor problem, but still the > > bug. > > This bug never happens because this check is only in the now-impossible > ptrace-same-group case. This means that changelog is wrong and should be changed. However, I disagree. exit_notify() doesn't check the ptrace-same-group case. So, unless I missed something, we set EXIT_DEAD in any case, even if ptracer doesn't belong to our thread group. No? Oleg. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
