[lttng-dev] Tracepoints firing without being enabled in LTTng

Francis Deslauriers francis.deslauriers at efficios.com
Fri Feb 15 10:32:00 EST 2019


Hi Mosleh,
It's expected to not see any event when running lttng list -u if no
lttng-ust instrumented applications are running.

What are the exact lttng commands you are running to see those
unexpected events?

Thank you,
Francis


Le ven. 15 févr. 2019, à 10 h 08, Mosleh Uddin <mosleh1235 at gmail.com> a écrit :
>
> Hello,
>
> I am having a strange issue with my current application. For some context, I have integrated LTTng into a Yocto build and put custom trace points in my embedded system application. Once I load the built image onto my system and start a session daemon, I try to list all available userspace events (using lttng list -u), but no events show up.
>
> The strange occurrence is when I create a session (lltng create my-sess) and not start tracing the trace events will display on the screen regardless (when starting session in live mode with lttng view). I was wondering if anyone has any insight on this issue I am having.
>
> Thanks for any assistance,
> Mosleh
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-- 
Francis Deslauriers
Computer Engineer
EfficiOS inc.


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