Fix: deny overwrite mode and num subbuf less than 2

[lttng-tools.git] / doc / man / lttng.1

diff --git a/doc/man/lttng.1 b/doc/man/lttng.1
index 834d302bf49138f8cea4931be67bb2c3f223f82a..9d163f5d95d1913937cef14f70eb87cf2e6b3efc 100644 (file)
--- a/doc/man/lttng.1
+++ b/doc/man/lttng.1
@@ -397,7 +397,8 @@ Apply to the user-space tracer
 Discard event when subbuffers are full (default)
 .TP
 .BR "\-\-overwrite"
-Flight recorder mode : overwrites events when subbuffers are full
+Flight recorder mode: overwrites events when subbuffers are full. The
+number of subbuffer must be 2 or more.
 .TP
 .BR "\-\-subbuf-size SIZE"
 Subbuffer size in bytes {+k,+M,+G}.