Index: /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp
===================================================================
--- /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp	(revision 43287)
+++ /trunk/src/VBox/Main/src-client/GuestProcessImpl.cpp	(revision 43288)
@@ -1465,4 +1465,5 @@
 
         vrc = pEvent->Wait(uTimeoutMS);
+        LogFlowThisFunc(("Waiting completed with rc=%Rrc\n", vrc));
         if (RT_SUCCESS(vrc))
         {
@@ -1745,4 +1746,8 @@
             case VERR_GENERAL_FAILURE: /** @todo Special guest control rc needed! */
                 hr = GuestProcess::setErrorExternal(this, guestRc);
+                break;
+
+            case VERR_TIMEOUT:
+                *aReason = ProcessWaitResult_Timeout;
                 break;