I have to comment the source code : usr/src/linux/kernel/printk.c for an University exam Where can I find some help about this? Thank's - Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/