X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=libringbuffer%2Fring_buffer_frontend.c;h=9d89c6fa68a7117b06b1701f17d33b2b3762e308;hb=c022630241628bd0233d3369ca3e418717fde89d;hp=ca19648f1d04f544d4f931bb29344fd3e43b65f4;hpb=9bfc503d5a3e2b1a75fa00a32b5d9bd7ac4f4dc3;p=lttng-ust.git

diff --git a/libringbuffer/ring_buffer_frontend.c b/libringbuffer/ring_buffer_frontend.c
index ca19648f..9d89c6fa 100644
--- a/libringbuffer/ring_buffer_frontend.c
+++ b/libringbuffer/ring_buffer_frontend.c
@@ -1341,6 +1341,7 @@ int lib_ring_buffer_try_reserve_slow(struct lttng_ust_lib_ring_buffer *buf,
 				 * and we are full : record is lost.
 				 */
 				v_inc(config, &buf->records_lost_full);
+				DBG("Record lost: buffer is full\n");
 				return -ENOBUFS;
 			} else {
 				/*
@@ -1358,6 +1359,7 @@ int lib_ring_buffer_try_reserve_slow(struct lttng_ust_lib_ring_buffer *buf,
 			 * many nested writes over a reserve/commit pair.
 			 */
 			v_inc(config, &buf->records_lost_wrap);
+			DBG("Record lost: buffer wrap-around\n");
 			return -EIO;
 		}
 		offsets->size =
@@ -1376,6 +1378,7 @@ int lib_ring_buffer_try_reserve_slow(struct lttng_ust_lib_ring_buffer *buf,
 			 * complete the sub-buffer switch.
 			 */
 			v_inc(config, &buf->records_lost_big);
+			DBG("Record lost: record size (%zu bytes) is too large for buffer\n", offsets->size);
 			return -ENOSPC;
 		} else {
 			/*