diff -r fea29fc045ee -r 2459297094e6 src/python/m5/simulate.py
--- a/src/python/m5/simulate.py	Thu Dec 04 11:08:23 2014 -0700
+++ b/src/python/m5/simulate.py	Thu Dec 04 11:37:26 2014 -0700
@@ -45,16 +45,18 @@
 import sys
 
 # import the SWIG-wrapped main C++ functions
+import core
+import event
 import internal
-import core
+import objects
 import stats
 import SimObject
 import ticks
-import objects
 from m5.util.dot_writer import do_dot
 from m5.internal.stats import updateEvents as updateStatEvents
 
 from util import fatal
+from util import warn
 from util import attrdict
 
 # define a MaxTick parameter, unsigned 64 bit
@@ -136,6 +138,14 @@
     else:
         for obj in root.descendants(): obj.initState()
 
+    if not event.getEventQueue(0).empty():
+        # SimObjects that do self-initiated processing are expected to
+        # schedule internal events when startup() is called. Therefore
+        # event queue shall be empty now.
+        # TODO: Consider enforcing this check and changing this to fatal.
+        warn("Event Queue is not empty after instantiation.")
+        print event.getEventQueue(0).dump()
+
     # Check to see if any of the stat events are in the past after resuming from
     # a checkpoint, If so, this call will shift them to be at a valid time.
     updateStatEvents()