*** Bug 6437 has been marked as a duplicate of this bug. ***

------- Additional Comment #1 From Masami Hiramatsu 2008-04-21 16:26 -------

I think this request needs kernel-side support, because the original return
address has been removed from a stack. We can find it in
kretprobe_instance->ret_addr.

------- Additional Comment #2 From Frank Ch. Eigler 2008-04-21 17:47 -------

It may be enough to MODULE_EXPORT the kretprobe_inst_table_head() function.
Then our unwinder could search the list of currently active kretprobe_instances.

------- Additional Comment #3 From Masami Hiramatsu 2008-04-21 20:59 -------

(In reply to comment #2)
> It may be enough to MODULE_EXPORT the kretprobe_inst_table_head() function.

Take care: you have to hold the kretprobe_lock while accessing the instance
table:-).
# and the lock is held when a kretprobe handler is called. :-(