[    2.528955] ip (285) used greatest stack depth: 12360 bytes left
[    4.436797] ip (399) used greatest stack depth: 12344 bytes left
[   61.261629] netem: version 1.3
[  490.828193] ip (9298) used greatest stack depth: 12304 bytes left
[  553.062629] ip (12124) used greatest stack depth: 12064 bytes left
[  618.523189] tc (13806) used greatest stack depth: 11936 bytes left