[ 4754.281959] Running test [R:12689642 T:24 - Networking TCP: keepalive test - Kernel: 6.0.0-rc7] 
[ 4828.482140] device lo entered promiscuous mode 
[-- MARK -- Sat Oct  1 02:10:00 2022] 
[ 4864.769292] device lo left promiscuous mode 
[ 4870.854112] device lo entered promiscuous mode 
[ 4907.137080] device lo left promiscuous mode