net: callback to socket.write should always be called asynchronously

Author: etlovett

lib/net.js

@@ -464,7 +464,9 @@ Socket.prototype._writeOut = function(data, encoding, fd, cb) {
     if (queuedData) {
       return false;
     } else {
-      if (cb) cb();
+      if (cb) {
+        process.nextTick(cb);
+      }
       return true;
     }
   }