>>>>> "Claudio" == Claudio Scordino <cloud.of.andor@xxxxxxxxx> writes: >> You need to wrap this with a read_lock(&tasklist_lock) to be safe, >> I think. Claudio> Right. Probably this was the meaning also of Hua's Claudio> mail. Sorry, but I didn't get it immediately. Claudio> So, what if I do as follows ? Do you see any problem with Claudio> this solution ? You should probably restrict the ability to read a process's usage to a suitably privileged user -- i.e., effective uid same as the task's, or capable(CAP_SYS_RESOURCE) or maybe capable(CAP_SYS_ADMIN) -- Dr Peter Chubb http://www.gelato.unsw.edu.au peterc AT gelato.unsw.edu.au The technical we do immediately, the political takes *forever* -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/