[   39.523156][  T281] ip (281) used greatest stack depth: 23832 bytes left
[   41.566991][  T292] ip (292) used greatest stack depth: 23104 bytes left
[   67.719071][  T452] ip (452) used greatest stack depth: 22848 bytes left
[  366.640538][ T2129] netem: version 1.3