X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fcommon%2Fust-consumer%2Fust-consumer.c;h=8ab2b819dcee52a237518b1ce6f8cba5f3e1aa1f;hp=e7d6dd4e780084879759055fe839e018f6d02048;hb=91dfef6e2f50460b9597fc8a8186949c48557c14;hpb=1d4dfdefb6efe31cd6436931f893caf7b05d0223

diff --git a/src/common/ust-consumer/ust-consumer.c b/src/common/ust-consumer/ust-consumer.c
index e7d6dd4e7..8ab2b819d 100644
--- a/src/common/ust-consumer/ust-consumer.c
+++ b/src/common/ust-consumer/ust-consumer.c
@@ -452,12 +452,20 @@ int lttng_ustconsumer_read_subbuffer(struct lttng_consumer_stream *stream,
 	padding = len - subbuf_size;
 	/* write the subbuffer to the tracefile */
 	ret = lttng_consumer_on_read_subbuffer_mmap(ctx, stream, subbuf_size, padding);
-	if (ret != subbuf_size) {
+	/*
+	 * The mmap operation should write subbuf_size amount of data when network
+	 * streaming or the full padding (len) size when we are _not_ streaming.
+	 */
+	if ((ret != subbuf_size && stream->net_seq_idx != -1) ||
+			(ret != len && stream->net_seq_idx == -1)) {
 		/*
-		 * display the error but continue processing to try
-		 * to release the subbuffer
+		 * Display the error but continue processing to try to release the
+		 * subbuffer
 		 */
-		ERR("Error writing to tracefile (expected: %ld, got: %ld)", ret, len);
+		ERR("Error writing to tracefile "
+				"(ret: %zd != len: %lu != subbuf_size: %lu)",
+				ret, len, subbuf_size);
+
 	}
 	err = ustctl_put_next_subbuf(handle, buf);
 	assert(err == 0);