rcu_thread_online();
sessiond_cleanup();
+ /*
+ * Wait for all pending call_rcu work to complete tearing shutting down
+ * the notification thread. This call_rcu work includes shutting down
+ * UST apps and event notifier pipes.
+ */
+ rcu_barrier();
+
if (notification_thread) {
lttng_thread_shutdown(notification_thread);
lttng_thread_put(notification_thread);