On Wed, Jul 03, 2013 at 11:41:19AM +0800, liu ping fan wrote: > On Mon, Jul 1, 2013 at 7:50 PM, Stefan Hajnoczi <stefa...@gmail.com> wrote: > > On Thu, Jun 20, 2013 at 05:14:56PM +0800, liu ping fan wrote: > >> On Tue, Jun 18, 2013 at 8:41 PM, Stefan Hajnoczi <stefa...@gmail.com> > >> wrote: > >> > On Thu, Jun 13, 2013 at 05:03:03PM +0800, Liu Ping Fan wrote: > >> >> @@ -1109,6 +1146,7 @@ void net_cleanup(void) > >> >> qemu_del_net_client(nc); > >> >> } > >> >> } > >> >> + qemu_mutex_destroy(&net_clients_lock); > >> > > >> > Why is it okay to iterate over net_clients here without the lock? > >> > >> atexit(&net_cleanup); So no other racers exist. > > > > What about dataplane? The device may not be reset when net_cleanup runs. > > > Does the func registered by atexit run after all of the other threads > terminate?
I imagine that atexit(3) runs while detached threads are still alive, but I'm not sure about the exact rules. The pthread specification links I found online didn't state the rules. Stefan
