[    2.204116] ip (270) used greatest stack depth: 12368 bytes left
[    2.312244] ip (279) used greatest stack depth: 12352 bytes left
[   53.038287] netem: version 1.3
[   75.064063] ip (2358) used greatest stack depth: 12072 bytes left
[  607.851552] tc (11940) used greatest stack depth: 11936 bytes left