Those logs have no error nor segmentation fault mention. You need to stop nautilus first with gnome-session-remove nautilus and then run valgrind option nautilus to get the log
-- [apport] nautilus crashes when viewing root folder (and some other folders I do not 'own') https://launchpad.net/bugs/92962 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
