[   12.380313][  T134] (udev-worker) (134) used greatest stack depth: 24728 bytes left
[   13.849402][  T258] pktgen: Packet Generator for packet performance testing. Version: 2.75
[   14.269838][  T259] pktgen: interface: lo@0 is already stopped
[   16.042114][  T274] pktgen: wrong command format