Working some more on the oprofile 2.5 patch. Slow going but hopefully I'll be able to come up with something worthy, and eventually drop all the horrible dreck in the module.
Speaking of which, Red Hat have decided that it is vital for them to remove the export of sys_call_table. Which means the ia64 users are going to have to compile up their own kernels since apparently oprofile is only going to be in the Red Hat kernel on x86. Ah well.