Index: /trunk/src/VBox/VMM/VM.cpp
===================================================================
--- /trunk/src/VBox/VMM/VM.cpp	(revision 31338)
+++ /trunk/src/VBox/VMM/VM.cpp	(revision 31339)
@@ -4115,4 +4115,6 @@
 {
     AssertReturn(ulCpuPriority > 0 && ulCpuPriority <= 100, VERR_INVALID_PARAMETER);
+
+    Log(("VMR3SetCpuPriority: new priority = %d\n", ulCpuPriority));
     /* Note: not called from EMT. */
     pVM->uCpuPriority = ulCpuPriority;