X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fstart.c;h=44554fb37e223d11f62cb0d0f7bce33e096f79f2;hp=0f44f4cdac511a750d884546cc65d6a96001d52f;hb=4222434939b65c3abf144866564732d7fd14ed13;hpb=abc9138a92fb32f5525f29160aabd6dc18e441cd

diff --git a/src/bin/lttng/commands/start.c b/src/bin/lttng/commands/start.c
index 0f44f4cda..44554fb37 100644
--- a/src/bin/lttng/commands/start.c
+++ b/src/bin/lttng/commands/start.c
@@ -26,6 +26,8 @@
 
 #include "../command.h"
 
+#include <common/sessiond-comm/sessiond-comm.h>
+
 static char *opt_session_name;
 
 enum {
@@ -79,7 +81,14 @@ static int start_tracing(void)
 
 	ret = lttng_start_tracing(session_name);
 	if (ret < 0) {
-		/* Don't set ret so lttng can interpret the sessiond error. */
+		switch (-ret) {
+		case LTTCOMM_TRACE_ALREADY_STARTED:
+			WARN("Tracing already started for session %s", session_name);
+			break;
+		default:
+			ERR("%s", lttng_strerror(ret));
+			break;
+		}
 		goto free_name;
 	}