Hello the LTTng team ! I would like, at first, to thank you for your projet and your impressive work ! For the past few days I have been trying to learn how to use lttng (v2.12). I followed the installation on your website for an Ubuntu 20.04. [cid:c663399f-0584-43d3-90c5-3aa277ee7020] The steps to get the trace of a Linux kernel and the babel trace are great ! However, I am stuck for the 'Trace a user application' : https://lttng.org/docs/v2.12/#doc-tracing-your-own-user-application Compilation steps are ok, it launches without error but lttng list --userspace gives me nothing. I tried of course to add -L/usr/local/lib and -Wl,-rpath,/usr/local/lib [cid:f913a7d9-4040-468e-ac5d-bea22d81da83] Have you ever had those kind of issues ? Could you advise me some debugging methods or solutions ? Have a nice day, Julien Montet