diff --git a/db/dbcommands.cpp b/db/dbcommands.cpp
index 6cb83b7a7a369..60ee890541164 100644
--- a/db/dbcommands.cpp
+++ b/db/dbcommands.cpp
@@ -1135,8 +1135,10 @@ namespace mongo {
                     
             }
 
+            long long size = nsd->datasize / scale;
             result.appendNumber( "count" , nsd->nrecords );
-            result.appendNumber( "size" , nsd->datasize / scale );
+            result.appendNumber( "size" , size );
+            result.append      ( "avgObjSize" , double(size) / double(nsd->nrecords) );
             int numExtents;
             result.appendNumber( "storageSize" , nsd->storageSize( &numExtents ) / scale );
             result.append( "numExtents" , numExtents );
@@ -1204,6 +1206,7 @@ namespace mongo {
 
             result.appendNumber( "collections" , ncollections );
             result.appendNumber( "objects" , objects );
+            result.append      ( "avgObjSize" , double(size) / double(objects) );
             result.appendNumber( "dataSize" , size );
             result.appendNumber( "storageSize" , storageSize);
             result.appendNumber( "numExtents" , numExtents );
diff --git a/s/chunk.cpp b/s/chunk.cpp
index 7fd4c31d08512..196536e587a8e 100644
--- a/s/chunk.cpp
+++ b/s/chunk.cpp
@@ -514,7 +514,8 @@ namespace mongo {
         
         ScopedDbConnection conn( temp.modelServer() );
 
-        auto_ptr<DBClientCursor> cursor = conn->query( temp.getNS() , BSON( "ns" <<  _ns ) );
+        auto_ptr<DBClientCursor> cursor = conn->query(temp.getNS(), QUERY("ns" << _ns).sort("lastmod",1), 0, 0, 0, 0,
+                (DEBUG_BUILD ? 2 : 1000000)); // batch size. Try to induce potential race conditions in debug builds
         while ( cursor->more() ){
             BSONObj d = cursor->next();
             if ( d["isMaxMarker"].trueValue() ){
diff --git a/s/commands_public.cpp b/s/commands_public.cpp
index 94a3cfceab4ac..d565bdbe8df51 100644
--- a/s/commands_public.cpp
+++ b/s/commands_public.cpp
@@ -251,6 +251,7 @@ namespace mongo {
                 result.append("ns", fullns);
                 result.appendNumber("count", count);
                 result.appendNumber("size", size);
+                result.append      ("avgObjSize", double(size) / double(count));
                 result.appendNumber("storageSize", storageSize);
                 result.append("nindexes", nindexes);
 
diff --git a/shell/db.js b/shell/db.js
index d2d75e00c41c3..2546bff48caf7 100644
--- a/shell/db.js
+++ b/shell/db.js
@@ -669,20 +669,23 @@ DB.prototype.listCommands = function(){
     for ( var name in x.commands ){
         var c = x.commands[name];
 
-        var s = name + " lock: ";
+        var s = name + ": ";
         
         switch ( c.lockType ){
-        case -1: s += "read"; break;
-        case 0: s += "node"; break;
-        case 1: s += "write"; break;
+        case -1: s += "read-lock"; break;
+        case  0: s += "no-lock"; break;
+        case  1: s += "write-lock"; break;
         default: s += c.lockType;
         }
         
-        s += " adminOnly: " + c.adminOnly;
-        s += " slaveOk: " + c.slaveOk;
-        s += " " + c.help;
+        if (c.adminOnly) s += " adminOnly ";
+        if (c.adminOnly) s += " slaveOk ";
+
+        s += "\n  ";
+        s += c.help.replace(/\n/g, '\n  ');
+        s += "\n";
         
-        print( s )
+        print( s );
     }
 }
 
diff --git a/util/debug_util.h b/util/debug_util.h
index cd59c89eb2aec..7686ecc9069fe 100644
--- a/util/debug_util.h
+++ b/util/debug_util.h
@@ -40,10 +40,12 @@ namespace mongo {
     } *OWS;
 
 #if defined(_DEBUG)
-# define MONGO_DEV if( 1 )
+    enum {DEBUG_BUILD = 1};
 #else
-# define MONGO_DEV if( 0 )
+    enum {DEBUG_BUILD = 0};
 #endif
+
+#define MONGO_DEV if( DEBUG_BUILD )
 #define DEV MONGO_DEV
 
 #define MONGO_DEBUGGING if( 0 )
diff --git a/util/message.cpp b/util/message.cpp
index 15b73a1c69e28..61a4175b410ae 100644
--- a/util/message.cpp
+++ b/util/message.cpp
@@ -251,12 +251,10 @@ namespace mongo {
     };
 
     class Ports { 
-        set<MessagingPort*>& ports;
+        set<MessagingPort*> ports;
         mongo::mutex m;
     public:
-        // we "new" this so it is still be around when other automatic global vars
-        // are being destructed during termination.
-        Ports() : ports( *(new set<MessagingPort*>()) ), m("Ports") {}
+        Ports() : ports(), m("Ports") {}
         void closeAll() { \
             scoped_lock bl(m);
             for ( set<MessagingPort*>::iterator i = ports.begin(); i != ports.end(); i++ )
@@ -270,7 +268,11 @@ namespace mongo {
             scoped_lock bl(m);
             ports.erase(p);
         }
-    } ports;
+    };
+
+    // we "new" this so it is still be around when other automatic global vars
+    // are being destructed during termination.
+    Ports& ports = *(new Ports());