Possible fix for the 100% CPU issue. I've not fully

confirmed that this fixes the issue, however functional
correctness of BlockingQueue requires that these locks be
put into place anyway.

OpenSim/Framework/BlockingQueue.cs

@@ -67,12 +67,18 @@ namespace OpenSim.Framework
         
         public int Count()
         {
-            return m_queue.Count;
+            lock(m_queueSync)
+	    {
+		return m_queue.Count;
+	    }
         }
 
         public T[] GetQueueArray()
         {
-            return m_queue.ToArray();
+            lock (m_queueSync)
+            {
+                return m_queue.ToArray();
+            }
         }
     }
 }