Index: /trunk/src/VBox/Devices/PC/DevIoApic.cpp
===================================================================
--- /trunk/src/VBox/Devices/PC/DevIoApic.cpp	(revision 86867)
+++ /trunk/src/VBox/Devices/PC/DevIoApic.cpp	(revision 86868)
@@ -539,4 +539,5 @@
             ioapicGetApicIntrFromMsi(&MsiOut, &ApicIntr);
             Assert(ApicIntr.u8Polarity == IOAPIC_RTE_GET_POLARITY(u64Rte)); /* Ensure polarity hasn't changed. */
+            Assert(ApicIntr.u8TriggerMode == u8TriggerMode);                /* Ensure trigger mode hasn't changed. */
         }
         else