Index: src/core/org/apache/jmeter/control/GenericController.java
===================================================================
--- src/core/org/apache/jmeter/control/GenericController.java	(revision 1240617)
+++ src/core/org/apache/jmeter/control/GenericController.java	(working copy)
@@ -383,9 +383,11 @@
 
     protected void fireIterationStart() {
         LoopIterationEvent event = new LoopIterationEvent(this, getIterCount());
-        for (LoopIterationListener item : iterationListeners) {
-            item.iterationStart(event);
-        }
+        if (!getThreadContext().isReinitializingSubControllers()) {            
+            for (LoopIterationListener item : iterationListeners) {
+                item.iterationStart(event);
+            }
+        } 
     }
 
     protected int getIterCount() {