[    2.001928] ip (252) used greatest stack depth: 12392 bytes left
[    2.479596] ip (283) used greatest stack depth: 12344 bytes left
[   57.764908] netem: version 1.3
[  112.725373] ip (2903) used greatest stack depth: 12064 bytes left
[  455.509777] ip (8089) used greatest stack depth: 12032 bytes left
[  620.416270] tc (12963) used greatest stack depth: 11936 bytes left