Using de following compilation I get the same results.
NodeMCU custom build by frightanic.com
branch: dev
commit: 340edbbe2fe89fcef60a77e76d8f58163315bfe4
SSL: true
modules: node,file,gpio,wifi,net,tmr,uart
build built on: 2015-11-12 19:55
powered by Lua 5.1.4 on SDK 1.4.0
It will be a module missing?
PS: I am using an ESP8266-12E with 4MB