diff -r a75564db03c3 -r 611c2b2aeaf7 src/cpu/simple/timing.cc
--- a/src/cpu/simple/timing.cc	Wed Jul 21 09:55:57 2010 -0700
+++ b/src/cpu/simple/timing.cc	Wed Jul 28 15:54:19 2010 -0700
@@ -868,6 +868,8 @@
     // received a response from the dcache: complete the load or store
     // instruction
     assert(!pkt->isError());
+    assert(_status == DcacheWaitResponse || _status == DTBWaitResponse ||
+        pkt->req->getFlags().isSet(Request::NO_ACCESS));
 
     numCycles += tickToCycles(curTick - previousTick);
     previousTick = curTick;
@@ -897,7 +899,6 @@
         }
     }
 
-    assert(_status == DcacheWaitResponse || _status == DTBWaitResponse);
     _status = Running;
 
     Fault fault = curStaticInst->completeAcc(pkt, this, traceData);