Fix: notification: kernel: consumption of event notification stalls

[lttng-tools.git] / src / bin / lttng-sessiond / notification-thread-events.cpp

diff --git a/src/bin/lttng-sessiond/notification-thread-events.cpp b/src/bin/lttng-sessiond/notification-thread-events.cpp
index 48ba7a00bccf30da93cfd02b560433da32179239..279bc7c5a26aa797c08d800b38b16ae98aa04627 100644 (file)
--- a/src/bin/lttng-sessiond/notification-thread-events.cpp
+++ b/src/bin/lttng-sessiond/notification-thread-events.cpp
@@ -2049,7 +2049,7 @@ int handle_notification_thread_command_add_tracer_event_source(
                        lttng_domain_type_str(domain_type));
 
        /* Adding the read side pipe to the event poll. */
-       ret = lttng_poll_add(&state->events, tracer_event_source_fd, LPOLLIN | LPOLLERR);
+       ret = lttng_poll_add(&state->events, tracer_event_source_fd, LPOLLPRI | LPOLLIN | LPOLLERR);
        if (ret < 0) {
                ERR("Failed to add tracer event source to poll set: tracer_event_source_fd = %d, domain = '%s'",
                                tracer_event_source_fd,