Some ns-3 tests and examples do not call Simulator::Run(), and hence Time::FreezeResolution() is not called and the times set is not deleted.

To reproduce, run this program under valgrind:

#include "ns3/core-module.h"

NS_LOG_COMPONENT_DEFINE ("s");

using namespace ns3;

int
main (int argc, char *argv[])
{
  return 0;
}

The below patch can resolve the error:

diff -r f094300690db src/core/model/time.cc
--- a/src/core/model/time.cc	Wed Dec 12 22:43:49 2012 -0800
+++ b/src/core/model/time.cc	Thu Dec 13 08:56:14 2012 -0800
@@ -279,5 +279,14 @@
 ATTRIBUTE_VALUE_IMPLEMENT (Time);
 ATTRIBUTE_CHECKER_IMPLEMENT (Time);

+// dummy object to make sure Time::FreezeResolution is called at least once
+class _dummy
+{
+public:
+  ~_dummy () { Time::FreezeResolution();}
+};
+
+static _dummy dummy;
+
 } // namespace ns3