diff --git a/doc/ChangeLog b/doc/ChangeLog
index 457a88fea4..34e7b57636 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,8 @@
+2010-08-03	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	PR 1650/cpukit
+	* user/part.t: Clarify.
+
 2010-06-11	Ralf Corsépius <ralf.corsepius@rtems.org>
 
 	* Makefile.am: Don't install html_imagesdir unconditionally.
diff --git a/doc/user/part.t b/doc/user/part.t
index 9bc8ad3857..4dad69d5a0 100644
--- a/doc/user/part.t
+++ b/doc/user/part.t
@@ -457,3 +457,6 @@ preempted.
 Returning a buffer to a global partition which does
 not reside on the local node will generate a request telling the
 remote node to return the buffer to the specified partition.
+
+Returning a buffer multiple times is an error.  It will corrupt the internal
+state of the partition.