X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fust-thread.c;h=b421eb29560c2d780ddb705224ed52e382003f28;hb=e8fcabef14e1e2ce8d159c68c5585931df1216b4;hp=d92c1f9082882b428886edf8df89d31e10ee713b;hpb=6c1c0768320135c6936c371b09731851b508c023;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/ust-thread.c b/src/bin/lttng-sessiond/ust-thread.c
index d92c1f908..b421eb295 100644
--- a/src/bin/lttng-sessiond/ust-thread.c
+++ b/src/bin/lttng-sessiond/ust-thread.c
@@ -65,13 +65,14 @@ void *ust_thread_manage_notify(void *data)
 	health_code_update();
 
 	while (1) {
-		DBG3("[ust-thread] Manage notify polling on %d fds",
-				LTTNG_POLL_GETNB(&events));
+		DBG3("[ust-thread] Manage notify polling");
 
 		/* Inifinite blocking call, waiting for transmission */
 restart:
 		health_poll_entry();
 		ret = lttng_poll_wait(&events, -1);
+		DBG3("[ust-thread] Manage notify return from poll on %d fds",
+				LTTNG_POLL_GETNB(&events));
 		health_poll_exit();
 		if (ret < 0) {
 			/*
@@ -92,6 +93,11 @@ restart:
 			revents = LTTNG_POLL_GETEV(&events, i);
 			pollfd = LTTNG_POLL_GETFD(&events, i);
 
+			if (!revents) {
+				/* No activity for this FD (poll implementation). */
+				continue;
+			}
+
 			/* Thread quit pipe has been closed. Killing thread. */
 			ret = sessiond_check_thread_quit_pipe(pollfd, revents);
 			if (ret) {