Index: /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py
===================================================================
--- /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py	(revision 61424)
+++ /trunk/src/VBox/ValidationKit/testmanager/batch/virtual_test_sheriff.py	(revision 61425)
@@ -384,4 +384,5 @@
     ktReason_XPCOM_VBoxSVC_Hang                        = ( 'API / (XP)COM',     'VBoxSVC hang' );
     ktReason_XPCOM_VBoxSVC_Hang_Plus_Heap_Corruption   = ( 'API / (XP)COM',     'VBoxSVC hang + heap corruption' );
+    ktReason_XPCOM_NS_ERROR_CALL_FAILED                = ( 'API / (XP)COM',     'NS_ERROR_CALL_FAILED' );
     ktReason_Unknown_Heap_Corruption                   = ( 'Unknown',           'Heap corruption' );
     ktReason_Unknown_Reboot_Loop                       = ( 'Unknown',           'Reboot loop' );
@@ -571,4 +572,6 @@
         ( True,  'VERR_TRPM_DONT_PANIC',                            ktReason_Guru_VERR_TRPM_DONT_PANIC ),
         ( True,  'VINF_EM_TRIPLE_FAULT',                            ktReason_Guru_VINF_EM_TRIPLE_FAULT ),
+        ( False, 'Exception: 0x800706be (Call to remote object failed (NS_ERROR_CALL_FAILED))',
+                                                                    ktReason_XPCOM_NS_ERROR_CALL_FAILED ),
     ];
 
@@ -729,4 +732,6 @@
             elif self.isResultFromVMRun(oFailedResult, sResultLog):
                 self.investigateVMResult(oCaseFile, oFailedResult, sResultLog);
+            elif sResultLog.find('Exception: 0x800706be (Call to remote object failed (NS_ERROR_CALL_FAILED))') > 0:
+                oCaseFile.noteReasonForId(self.ktReason_XPCOM_NS_ERROR_CALL_FAILED, oFailedResult.idTestResult);
             elif sResultLog.find('The machine is not mutable (state is ') > 0:
                 self.vprint('Ignorining "machine not mutable" error as it is probably due to an earlier problem');