[    2.225634] ip (252) used greatest stack depth: 12392 bytes left
[    4.598734] ip (389) used greatest stack depth: 12360 bytes left
[    5.549035] ip (447) used greatest stack depth: 12344 bytes left
[   58.942596] netem: version 1.3
[  570.599027] ip (11594) used greatest stack depth: 12192 bytes left
[  584.066805] ip (11818) used greatest stack depth: 12104 bytes left
[  615.346430] tc (12616) used greatest stack depth: 11936 bytes left