Hi François,
On 7/12/24 3:52 PM, François Belias wrote:
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
There are two issues in the screenshot you attached:
1. You are not starting lttng-sessiond as the root user, you are
running it as the user 'philippe'
2. The error in the screenshot indicates that there is already
another lttng-sessiond running.
Could you please stop all of the lttng-sessionds, then run
`lttng-sessiond -vvv` as the root user?
thanks,
kienan
Le ven. 12 juill. 2024, à 15 h 24, Kienan Stewart <kstew...@efficios.com
<mailto:kstew...@efficios.com>> 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
<https://lttng.org/docs/v2.13/#doc-building-from-source>
> <https://lttng.org/docs/v2.13/#doc-building-from-source
<https://lttng.org/docs/v2.13/#doc-building-from-source>>), but I still
> encounter this error. Can someone help me resolve this issue?
>
> Thanks.
>
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