Merge ktlim@zizzer:/bk/newmem

into  zamp.eecs.umich.edu:/z/ktlim2/clean/newmem-merge

--HG--
extra : convert_revision : 0e4c7684879b8552908e0b64a00b4824de807244

src/cpu/o3/commit_impl.hh

@@ -566,6 +566,9 @@ DefaultCommit<Impl>::tick()
         return;
     }
 
+    if ((*activeThreads).size() <= 0)
+        return;
+
     list<unsigned>::iterator threads = (*activeThreads).begin();
 
     // Check if any of the threads are done squashing.  Change the
@@ -579,7 +582,7 @@ DefaultCommit<Impl>::tick()
                 commitStatus[tid] = Running;
             } else {
                 DPRINTF(Commit,"[tid:%u]: Still Squashing, cannot commit any"
-                        "insts this cycle.\n", tid);
+                        " insts this cycle.\n", tid);
                 rob->doSquash(tid);
                 toIEW->commitInfo[tid].robSquashing = true;
                 wroteToTimeBuffer = true;