AnchorFree Senior Software Engineer Linux Kernel interview questions

This is the only company where i have seen the most unprofessional way to interview a candidate. When a candidate is asked a question, if the interviewers laugh among themselves constantly, its so annoying. The interviewers don't know how to interview a candidate, and they were unprepared and they asked questions which has nothing to do with the actual work in the company, nor does it has anything to do with my current work. In the middle of the interview, the interviewers just walked out without saying anything and suddenly one of them came back and said "production problem" and they said i dont have enough linux experience and so they are not hiring me. I am glad that i dint get selected here. Otherwise life would have been miserable.