[lttng-dev] Error: Unable to list kernel events: Kernel tracer not available

[François Belias]

sorry I forgot the last part of your previous email. This is the result of
the command lsmod | grep lttng.

Le ven. 12 juill. 2024, à 15 h 52, François Belias <beliasossim at gmail.com>
a écrit :

> 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 <kstewart at 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>), but I still
>> > encounter this error. Can someone help me resolve this issue?
>> >
>> > Thanks.
>> >
>> > _______________________________________________
>> > lttng-dev mailing list
>> > lttng-dev at lists.lttng.org
>> > https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.lttng.org/pipermail/lttng-dev/attachments/20240712/0257f999/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot from 2024-07-12 15-57-15.png
Type: image/png
Size: 20071 bytes
Desc: not available
URL: <https://lists.lttng.org/pipermail/lttng-dev/attachments/20240712/0257f999/attachment-0001.png>