hello all, I am going thru linux kernel 2.2 source code ( as i have Daniel .P. Bovet's book on kernel 2.2) ,i have reached init/main.c file and have come to function fixmap_init ,i am unable to make any thing out of this as there is no comments and inspite of searching the net couldn't find any links which explain this. Even the text book dosen't deals with this file. Can some one help me with this function of give me pointers to any links which explain this file. Also the function makes use of varable __end_of_fixed_addresses what is the value of this variable ? any help of advice will be greatly helpful,thanks in advance gopakumar -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/