[ 5640.087577][  T946] pktgen: Packet Generator for packet performance testing. Version: 2.75
[ 5640.506790][  T947] pktgen: interface: lo@0 is already stopped
[ 5641.826929][  T934] kworker/1:0 (934) used greatest stack depth: 23344 bytes left
[ 5642.306042][  T962] pktgen: wrong command format