Alle 14:48, giovedì 4 agosto 2005, Arjan van de Ven ha scritto: > > hmm this looks like you're trying to write a rootkit. > I'm not going to help you with that. > Oh NO! I'm developing my thesys' project reguarding model checking on multithread programs. The project's name is MTPMC(Multi-Thread Programs Model Checker) and its goal is to do a automatic validation of multithreaded programs, in other word I've to execute threads sharing the same memory descriptor and then I need to store the status of each thread to create system states giving me the possibilities to return to a previous situation on the sistem. The page fault exception handler hijacking is needed as I've to create such a snapshot of the system when one of the threads tries to write on the shared memory descriptor. To do this I've to write-protect the whole memory descriptor and, when the thread tries to write on it, a page fault exception is caught and I store in a list the page that causes the page fault and I stop the process. Then I proceed to snapshot the system and store it on a system stack. I hope I've explained well my project. I've to finish my project next week and I've already some problems like the one described in the previous emails. Vincenzo Mallozzi. ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
