Hi Kienan Thanks very much for your reply. I can now capture UST events. (My actual problem was that I was not linking to lttng-ust).
I am now using the method you described: > lttng create my_proj > lttng enable-event --userspace 'lttng_ust_tracef:*' > lttng start > ./my_app > lttng stop > lttng view # [Optional] This works and captures UST events but I am not capturing Kernel events. My reason for running this experiment is that occasionally our application shows glitches where a task takes longer than expected. So I want to see what happens in that occurrence - perhaps an ISR is running or something like that. So I assume that I need to capture Kernel and UST events. Can you please advise me why Kernel events aren't being captured? Best regards David
