hello, Anybody please tell me what is the meaning of orig_eax in user_regs_struct ? And what does it do, together with eax? In the same structure, there are somethings named _cs, _ds, _es, _ss, _bs, _fs. What do they do with these things? Thank you a lot, AQ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/