[    1.915958] ip (248) used greatest stack depth: 12384 bytes left
[    2.109132] ip (260) used greatest stack depth: 12336 bytes left
[   52.186111] netem: version 1.3
[  293.126346] ip (4444) used greatest stack depth: 12288 bytes left
[  402.509390] ip (6959) used greatest stack depth: 12192 bytes left
[  576.803612] tc (11914) used greatest stack depth: 11872 bytes left