Index: /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp	(revision 56630)
+++ /trunk/src/VBox/VMM/VMMAll/IEMAll.cpp	(revision 56631)
@@ -6968,5 +6968,9 @@
     {
         iMemMap = iemMemMapFindFree(pIemCpu);
-        AssertReturn(iMemMap < RT_ELEMENTS(pIemCpu->aMemMappings), VERR_IEM_IPE_9);
+        AssertLogRelMsgReturn(iMemMap < RT_ELEMENTS(pIemCpu->aMemMappings),
+                              ("active=%d fAccess[0] = {%#x, %#x, %#x}\n", pIemCpu->cActiveMappings,
+                               pIemCpu->aMemMappings[0].fAccess, pIemCpu->aMemMappings[1].fAccess,
+                               pIemCpu->aMemMappings[2].fAccess),
+                              VERR_IEM_IPE_9);
     }