Seeing a recurring message when running debug on IIoT device

[kkunimoto]

Hello, I'm seeing this message consistently when running a debug client <mac> command:

*apfReceiveTask: Oct 06 07:43:19.454: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:22.922: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:26.388: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:34.957: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:38.833: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:42.097: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:43.525: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:46.382: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:46.993: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:50.665: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:54.133: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:43:57.600: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:44:06.168: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:44:14.737: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:44:23.305: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:44:31.871: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:30.260: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:33.512: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:36.764: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:45.083: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:48.551: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:51.778: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:55.027: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:55.639: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:58.250: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:45:58.851: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:46:02.050: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:46:06.451: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

*apfReceiveTask: Oct 06 07:46:09.850: [PA] apfMmProcessMessage: Freeing the mm pkt for non existing client

Can anyone tell me what this message means? Any Cisco documentation you could point me to?

TIA!

[Rich R]

What WLC?
What software version?
What model of AP?
Have you run the debug results through https://cway.cisco.com/wireless-debug-analyzer/ ?