diff -r 80e05832f025 -r 7217292ffa59 src/mem/protocol/MOESI_hammer-dir.sm
--- a/src/mem/protocol/MOESI_hammer-dir.sm	Thu Jan 06 15:34:28 2011 -0800
+++ b/src/mem/protocol/MOESI_hammer-dir.sm	Thu Jan 06 15:35:01 2011 -0800
@@ -538,7 +538,13 @@
       // directory DMA requests must wait for acks from all LLC caches, so 
       // only decrement by 1.
       //
-      TBEs[address].NumPendingMsgs := TBEs[address].NumPendingMsgs - 1;
+      if ((in_msg.Type == CoherenceResponseType:DATA_SHARED) ||
+          (in_msg.Type == CoherenceResponseType:DATA) ||
+          (in_msg.Type == CoherenceResponseType:DATA_EXCLUSIVE)) {
+        TBEs[address].NumPendingMsgs := TBEs[address].NumPendingMsgs - 1;
+      } else {
+        TBEs[address].NumPendingMsgs := TBEs[address].NumPendingMsgs - in_msg.Acks;
+      }
       DPRINTF(RubySlicc, "%d\n", TBEs[address].NumPendingMsgs);
     }
   }
@@ -547,11 +553,6 @@
     peek(unblockNetwork_in, ResponseMsg) {
       assert(in_msg.Type == CoherenceResponseType:UNBLOCKS);
       DPRINTF(RubySlicc, "%d\n", TBEs[address].NumPendingMsgs);
-      //
-      // Note that cache data responses will have an ack count of 2.  However, 
-      // directory DMA requests must wait for acks from all LLC caches, so 
-      // only decrement by 1.
-      //
       TBEs[address].NumPendingMsgs := TBEs[address].NumPendingMsgs - 1;
       DPRINTF(RubySlicc, "%d\n", TBEs[address].NumPendingMsgs);
     }