X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;ds=sidebyside;f=liblttng-ust%2Fltt-events.c;h=94e06780f9de58822d259979bca000f968f0c696;hb=9080554ff25b08f48762d2ee7cfa3981317e9c1d;hp=f69eb07a8181ebb395afbc28d877c62291d0217c;hpb=31b073500ae4d866bcc3ca1bb925c6365991ae4c;p=lttng-ust.git

diff --git a/liblttng-ust/ltt-events.c b/liblttng-ust/ltt-events.c
index f69eb07a..94e06780 100644
--- a/liblttng-ust/ltt-events.c
+++ b/liblttng-ust/ltt-events.c
@@ -309,10 +309,20 @@ int ltt_session_enable(struct ltt_session *session)
 	cds_list_for_each_entry(chan, &session->chan, list) {
 		if (chan->header_type)
 			continue;		/* don't change it if session stop/restart */
+		/*
+		 * Because we don't use any timer in the application, we
+		 * currently cannot guarantee that we have frequent
+		 * events that let us detect 27-bit overflows.
+		 * Therefore, for now, we force large event headers,
+		 * which contain 64-bit timestamps.
+		 */
+		chan->header_type = 2;  /* large */
+#if 0
 		if (chan->free_event_id < 31)
 			chan->header_type = 1;	/* compact */
 		else
 			chan->header_type = 2;	/* large */
+#endif //0
 	}
 
 	CMM_ACCESS_ONCE(session->active) = 1;