From: Pierre-Marc Fournier <pierre-marc.fournier@polymtl.ca>
Date: Mon, 1 Mar 2010 21:16:54 +0000 (-0500)
Subject: add debug message when events are lost in a subbuffer, on buffer_end
X-Git-Tag: v0.3~6
X-Git-Url: https://git.lttng.org/?p=ust.git;a=commitdiff_plain;h=719569e4967369c8a2e952346250f3bf97fec5f4

add debug message when events are lost in a subbuffer, on buffer_end
---

diff --git a/libust/buffers.c b/libust/buffers.c
index 849cad7..206d5e7 100644
--- a/libust/buffers.c
+++ b/libust/buffers.c
@@ -331,6 +331,9 @@ static notrace void ltt_buffer_end(struct ust_buffer *buf,
 	header->cycle_count_end = tsc;
 	header->events_lost = local_read(&buf->events_lost);
 	header->subbuf_corrupt = local_read(&buf->corrupted_subbuffers);
+	if(unlikely(header->events_lost > 0)) {
+		DBG("Some events (%d) were lost in %s_%d", header->events_lost, buf->chan->channel_name, buf->cpu);
+	}
 }
 
 /*