diff -r 1cb43a0d4ec6 -r 1167ec8e97e9 src/cpu/o3/commit_impl.hh
--- a/src/cpu/o3/commit_impl.hh	Tue Mar 04 15:22:59 2014 -0500
+++ b/src/cpu/o3/commit_impl.hh	Tue Mar 04 17:02:02 2014 -0500
@@ -1100,6 +1100,13 @@
                 DPRINTF(Commit, "Unable to commit head instruction PC:%s "
                         "[tid:%i] [sn:%i].\n",
                         head_inst->pcState(), tid ,head_inst->seqNum);
+
+                if (commitPolicy == RoundRobin) {
+                    assert(priority_list.back() == tid);
+                    priority_list.pop_back();
+                    priority_list.push_front(tid);
+                }
+
                 break;
             }
         }