Hi! I am trying to change the flags of a user process from a lkm to enable breakpoint exceptions in that process. I thought that it was just to look for the task_struct of that process (e.g., with for_each_task, looking for it's known PID) and change its tss structure. However, this is not working! Anyone can explain me why? -- Luís Henriques - 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/