[    2.086532] ip (250) used greatest stack depth: 12400 bytes left
[    2.556286] ip (280) used greatest stack depth: 12352 bytes left
[   47.405668] ip (1903) used greatest stack depth: 12296 bytes left
[   56.038172] netem: version 1.3
[  492.991441] ip (8656) used greatest stack depth: 12248 bytes left
[  588.032013] tc (11934) used greatest stack depth: 11936 bytes left