[ 4393.705108][ T3864] pktgen: Packet Generator for packet performance testing. Version: 2.75
[ 4394.023925][ T3865] pktgen: interface: lo@0 is already stopped
[ 4395.540402][ T3880] pktgen: wrong command format
[ 4396.702181][T20328] kworker/3:0 (20328) used greatest stack depth: 22288 bytes left