Michal Hocko <mho...@kernel.org> writes: > On Fri 01-06-18 09:32:42, Eric W. Biederman wrote: >> Michal Hocko <mho...@kernel.org> writes: > [...] >> > Group leader exiting early without tearing down the whole thread >> > group should be quite rare as well. No question that somebody might do >> > that on purpose though... >> >> The group leader exiting early is a completely legitimate and reasonable >> thing to do, even if it is rare. > > I am not saying it isn't legitimate. But the most common case is the > main thread waiting for its threads or calling exit which would tear the > whole group down. Is there any easy way to achieve this other than tkill > to group leader? Calling exit(3) from the leader performs group exit > IIRC.
pthread_exit from the group leader. > I am not arguing this is non-issue. And it certainly is a problem once > somebody wants to be nasty... I was more interested how often this > really happens for sane workloads. That is a fair question. All I know for certain is that whatever Kirill Tkhai's workload was it was triggering this the slow path. Eric
