Index: /trunk/include/VBox/vd-ifs.h
===================================================================
--- /trunk/include/VBox/vd-ifs.h	(revision 85900)
+++ /trunk/include/VBox/vd-ifs.h	(revision 85901)
@@ -303,4 +303,10 @@
         pIfError->pfnError(pIfError->Core.pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
     va_end(va);
+
+#if defined(LOG_ENABLED) && defined(Log)
+    va_start(va, pszFormat);
+    Log(("vdIfError: %N\n", pszFormat, &va));
+    va_end(va);
+#endif
     return rc;
 }
@@ -322,4 +328,10 @@
         rc = pIfError->pfnMessage(pIfError->Core.pvUser, pszFormat, va);
     va_end(va);
+
+#if defined(LOG_ENABLED) && defined(Log)
+    va_start(va, pszFormat);
+    Log(("vdIfErrorMessage: %N\n", pszFormat, &va));
+    va_end(va);
+#endif
     return rc;
 }