I have been trying to run oprofile on my employer's systems. The
callgraph feature does not work. When I asked, I got the following
> oprofile isn't able to gather callgraphs if the bit'edness of the
> process and the kernel don't match. Ordinary function profiling
> works, but if you ask for callgraphs it'll just end up showing the
> equivalent of an ordinary function profile since there won't be any
> caller information.
They are running a couple of versions back. Is the problem fixed in the
current release? Is this a known bug that is being worked on?