[    2.011412] ip (252) used greatest stack depth: 12392 bytes left
[    2.354809] ip (275) used greatest stack depth: 12344 bytes left
[   57.397211] netem: version 1.3
[  360.208824] ip (5893) used greatest stack depth: 12240 bytes left
[  611.750029] tc (12958) used greatest stack depth: 11936 bytes left