I have started reading the Computer Systems: A Programmer’s Perspective (CS:APP) by Randal E. Bryant and David R. O’Hallaron, Prentice Hall, 2003, ISBN 0-13-034074-X.
It is perhaps the best book which immerses you into systems programming. I have identified around 10 masterpieces that fall into the ‘Systems Programming’ Category. Long live the joy of Systems Programming.
Meanwhile this is a new find!
The Institute for System Programming (ISP) of the Russian Academy of Sciences (RAS)