EL 5 and 6, just run "yum install systemtap" and "stap-prep" Here's a basic example from my scripts folder: http://pastie.org/private/zggvir0zdflcixnvleximq ht

EL 5 and 6, just run "yum install systemtap" and "stap-prep" Here's a basic example from my scripts folder: http://pastie.org/private/zggvir0zdflcixnvleximq http://pastie.org/private/zggvir0zdflcixnvleximq When a kernel module calls request_module(), this prints out the backtrace so you can see what calls it and why. Example output from a "service iptables restart" is included. If you want some homework, add the name of the module being requested to the printf, at a glance it should be accessible via $name