--- "Dhiman, Gaurav" <Gaurav.Dhiman@xxxxxx> wrote : > > If you are trying to just write some specific data > to log file at each fork() and exit() system call, > it would be better that you register some type of > signal to the kernel first (using sigaction() system > call) and then do fork () and exit(). I'm trying to apply kind of user space filters. Here is what I'd like to do. A user space application will control the behaviour of some programs. For example, the user can add a program to be under control, let's say mozilla, and I want to display information about mozilla and all its children with my user space application and apply some filters (things like renice or anything else). That's why I need to know when mozilla calls sys_fork. The problem with the signal is that it will be send to mozilla but not to my user space application right? So, is it possible to send from the do_fork() routine a signal to my user space application (that is not the current one when forking)? Otherwise, I was thinking to use the kernel event notification patch but I think that using the routine send_kevent() when forking will slow down my system. Thank you for your help Regards, Patrick Vous manquez d?espace pour stocker vos mails ? Yahoo! Mail vous offre GRATUITEMENT 100 Mo ! Créez votre Yahoo! Mail sur http://fr.benefits.yahoo.com/ Le nouveau Yahoo! Messenger est arrivé ! Découvrez toutes les nouveautés pour dialoguer instantanément avec vos amis. A télécharger gratuitement sur http://fr.messenger.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/