vmkernel and vmkwarning log flooded

Hi,

Could anyone tell me what this mean?

This two log files are constantly flooded by this warnings:

2019-12-19T12:06:37.203Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:37.203Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:38.205Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:38.205Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:39.207Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:39.207Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:40.209Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:40.209Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:41.211Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:41.211Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:42.214Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:42.214Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:43.216Z cpu12:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:43.216Z cpu12:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:44.216Z cpu16:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:44.216Z cpu16:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:45.217Z cpu16:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:45.217Z cpu16:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

2019-12-19T12:06:46.220Z cpu16:2101773)WARNING: UserSocketInet: 4195: nfcd: Net_RegisterCallback failed

2019-12-19T12:06:46.220Z cpu16:2101773)WARNING: UserObj: 4823: nfcd: Poll on fd 4 failed: Invalid handle

I can't find anything regarding this "Net_RegisterCallback failed"

Version:  6.7.0 Update 3 (Build 15160138)

Manufacturer 

  Dell Inc.