[    2.224733] ip (272) used greatest stack depth: 12368 bytes left
[    2.337220] ip (281) used greatest stack depth: 12352 bytes left
[    6.384518] ip (569) used greatest stack depth: 12312 bytes left
[   54.621343] netem: version 1.3
[  415.383509] ip (7267) used greatest stack depth: 12072 bytes left