Hi, sorry, Outlook is messing up my plaintext mails, so I am switching to my gmail account.
> lttng-modules exposes its control ABI through the virtual file /proc/lttng. > > Does you container have access to that file ? The container is running in privileged mode. root@9348eb19e6f4:/# ls -l /proc/lttng -rw------- 1 root root 0 Nov 6 16:05 /proc/lttng > Note that if you give access to that file within the container, then the > container > can observe detailed information about kernel internals (including related to > other containers). This is a development-only system, so the security implications are acceptable. I have observed one more thing. When I start the session daemon with the -vvv option I get: root@9348eb19e6f4:/# lttng list --kernel DBG1 - 07:31:23.811796947 [Client management]: Wait for client response (in thread_manage_clients() at client.c:2576) DBG1 - 07:31:23.811867247 [Client management]: Receiving data from client ... (in thread_manage_clients() at client.c:2604) DBG1 - 07:31:23.811945247 [Client management]: Processing client command 'LTTNG_LIST_TRACEPOINTS' (14) (in process_client_msg() at client.c:1016) Error: Failed to load kmod library resources Warning: No kernel tracer available DBG1 - 07:31:23.812076447 [Client management]: Missing llm header, creating one. (in process_client_msg() at client.c:2381) DBG1 - 07:31:23.812085547 [Client management]: Sending response (size: 24, retcode: Kernel tracer not available (33)) (in thread_manage_clients() at client.c:2683) DBG1 - 07:31:23.812156547 [Client management]: Accepting client command ... (in thread_manage_clients() at client.c:2534) Error: Unable to list kernel events: Kernel tracer not available Regards Dirk
