Hi Kienan, Yes, `lttng-sessiond` is being run by the root user. I have shared a screenshot of the result when I ran the `lttng-sessiond -vvv` command, but I don't think the kernel modules are loaded. thanks Le ven. 12 juill. 2024, à 15 h 24, Kienan Stewart a écrit : > Hi François, > > On 7/12/24 2:53 PM, François Belias via lttng-dev wrote: > > Hello, > > > > When I run the command `sudo lttng list -k`, I get the following error: > > To check a few things: > > * Is lttng-sessiond being run by the root user? > * If you run lttng-session with the "-vvv" option, are there messages > related to loading the kernel modules? > * Once the lttng-sessiond is started, you can check to see if the > kernel modules have been loaded by running the following command: > > ``` > lsmod | grep lttng > ``` > > thanks, > kienan > > > > > ``` > > Error: Unable to list kernel events: Kernel tracer not available. > > ``` > > > > I am trying to build LTTng-modules from the source. I followed the steps > > from this website: [LTTng > > Documentation](https://lttng.org/docs/v2.13/#doc-building-from-source > > ), but I still > > encounter this error. Can someone help me resolve this issue? > > > > Thanks. > > > > _______________________________________________ > > lttng-dev mailing list > > lttng-dev@lists.lttng.org > > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev >