[ 4027.360540] Running test [R:12688528 T:19 - Networking TCP: keepalive test - Kernel: 6.0.0-rc7] [ 4100.906359] device lo entered promiscuous mode [ 4137.031890] device lo left promiscuous mode [ 4142.667848] device lo entered promiscuous mode [ 4178.774392] device lo left promiscuous mode