Yesterday i realised the importance of documenting everything step by step . I was told to port an driver/application that we made for linux 4.1 to a 4.9 kernel . Eventhough i did already port another similar application to the same , didnt remember what are things that i did.. Thank God ..If not for the constant pestering of my colleagues to document each step.. I would have been stuck in that island for 2 more days ..