Issue with TC-DLOG-2.1: RetrieveLogsRequest Returns "Exhausted" Response

[paper555]

I am currently working on the Matter certification for the light_bulb sample project, where I have integrated the Diagnostic Logs snippet during compilation. However, during the execution of TC-DLOG-2.1, Step 2, I encountered an issue when the Test Harness (TH) sends a RetrieveLogsRequest command to the Device Under Test (DUT).

Instead of receiving a valid RetrieveLogsResponse, the DUT returns a response with the status "Exhausted". This behavior causes the test case to fail, as the expected logs are not retrieved successfully.

Below is the relevant log from the TH tool for your reference:

TC-DLOG-2.1_TH.txt

Could you please provide guidance on how to resolve this issue? 

[paper555]

The version of the NCS SDK I am using is v3.0.1, and the same issue occurs with v2.9.1.

[Amanda Hsieh]

Hi, 

We are not sure what logs should be captured and sent by the diagnostic logs. You should define what is streamed to the diagnostics logs buffers (please follow the documentation). Status Exhausted means that no logs are stored in the Diagnostics log's buffers. 

Here is the documentation about diagnostics logs:

https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/protocols/matter/getting_started/advanced_kc…

I remember that we had some issues before 3.1.0 - not sure if the same issue was visible on 3.0.1, but here is the commit that fix some mechanism there.

https://github.com/nrfconnect/sdk-nrf/commit/17f0f1b0c912f60f21a48b637799c65ab293f358

Regards,
Amanda H.