[ 7587.224896] Running test [R:13248935 T:20 - Networking TCP: keepalive test - Kernel: 6.2.0-0.rc4.c1649ec55708.33.test.fc38.x86_64+debug] 
[ 7674.954453] device lo entered promiscuous mode 
[ 7712.703062] device lo left promiscuous mode 
[ 7724.046500] device lo entered promiscuous mode 
[-- MARK -- Wed Jan 18 16:15:00 2023] 
[ 7761.827370] device lo left promiscuous mode