[-- MARK -- Fri Sep 23 15:10:00 2022] 
[ 6341.932878] Running test [R:12649179 T:12 - Networking TCP: keepalive test - Kernel: 6.0.0-rc6] 
[ 6451.280675] device lo entered promiscuous mode 
[ 6491.604003] device lo left promiscuous mode 
[ 6513.486973] device lo entered promiscuous mode 
[ 6554.022729] device lo left promiscuous mode