[ 5278.029521] Running test [R:13286275 T:24 - Networking TCP: keepalive test - Kernel: 6.2.0-0.rc5.948ef7bb70c4.40.test.fc38.x86_64] 
[ 5352.593674] device lo entered promiscuous mode 
[ 5388.791799] device lo left promiscuous mode 
[ 5394.727227] device lo entered promiscuous mode 
[-- MARK -- Wed Jan 25 14:50:00 2023] 
[ 5430.920921] device lo left promiscuous mode