Dear All, How can I control a process from user level? I know I can kill a process by sending signal. What I say control means to be able to switch the process between states from user level, like force process to give up process and go to ready(or waiting) state, etc. Thanks Noah Noah Yan yanyh@cs.uh.edu http://www.cs.uh.edu/~yanyh -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/