[    1.768116] ip (256) used greatest stack depth: 12392 bytes left
[    2.047638] ip (278) used greatest stack depth: 12344 bytes left
[   55.248234] netem: version 1.3
[  522.929424] ip (10351) used greatest stack depth: 12160 bytes left
[  599.247542] tc (12618) used greatest stack depth: 11936 bytes left