[lttng-dev] Userspace Tracing on 2.6.21 kernel

[Naresh Bhat]

Hi Mathieu,

I am using the following kernel version "linux-2.6.21". I am able to
run and collect the LTTng traces, But do not see any trace for tasks,
process, cpu usage and Interrupt service routines.

Now, my question is how can I collect the traces for the following

1.  Is there a mechanism where applications from user space are
required to register to enable traces?
2.  Are there any config changes which will enable traces for tasks
and processes?

Please, help me to understand.

-- Thanks and Regards
-Naresh Bhat