diff -r cd0a9c975c8c src/mem/protocol/MOESI_CMP_directory-L2cache.sm
--- a/src/mem/protocol/MOESI_CMP_directory-L2cache.sm	Thu Oct 17 10:20:45 2013 -0500
+++ b/src/mem/protocol/MOESI_CMP_directory-L2cache.sm	Tue Oct 29 16:54:48 2013 +0100
@@ -747,6 +747,7 @@
       out_msg.Addr := address;
       out_msg.Type := CoherenceResponseType:DATA;
       out_msg.Sender := machineID;
+      out_msg.SenderMachine := MachineType:L2Cache;
       out_msg.Destination.addNetDest(tbe.L1_GetS_IDs);
       out_msg.DataBlk := tbe.DataBlk;
       // out_msg.Dirty := tbe.Dirty;
@@ -811,6 +812,7 @@
         out_msg.Addr := address;
         out_msg.Type := CoherenceResponseType:DATA;
         out_msg.Sender := machineID;
+        out_msg.SenderMachine := MachineType:L2Cache;
         out_msg.Destination.add(in_msg.Requestor);
         out_msg.DataBlk := tbe.DataBlk;
         // out_msg.Dirty := tbe.Dirty;
@@ -830,6 +832,7 @@
       out_msg.Addr := address;
       out_msg.Type := CoherenceResponseType:DATA;
       out_msg.Sender := machineID;
+      out_msg.SenderMachine := MachineType:L2Cache;
       out_msg.Destination.addNetDest(tbe.Fwd_GetS_IDs);
       out_msg.DataBlk := tbe.DataBlk;
       // out_msg.Dirty := tbe.Dirty;
@@ -866,6 +869,7 @@
         out_msg.Addr := address;
         out_msg.Type := CoherenceResponseType:DATA;
         out_msg.Sender := machineID;
+        out_msg.SenderMachine := MachineType:L2Cache;
         out_msg.Destination.add(in_msg.Requestor);
         out_msg.DataBlk := cache_entry.DataBlk;
         // out_msg.Dirty := cache_entry.Dirty;
@@ -925,6 +929,7 @@
         out_msg.Addr := address;
         out_msg.Type := CoherenceResponseType:DATA;
         out_msg.Sender := machineID;
+        out_msg.SenderMachine := MachineType:L2Cache;
         out_msg.Destination.add(in_msg.Requestor);
         out_msg.DataBlk := cache_entry.DataBlk;
         // out_msg.Dirty := cache_entry.Dirty;
@@ -944,6 +949,7 @@
         out_msg.Addr := address;
         out_msg.Type := CoherenceResponseType:DATA_EXCLUSIVE;
         out_msg.Sender := machineID;
+        out_msg.SenderMachine := MachineType:L2Cache;
         out_msg.Destination.add(in_msg.Requestor);
         out_msg.DataBlk := cache_entry.DataBlk;
         out_msg.Dirty := cache_entry.Dirty;