[    2.076937] ip (284) used greatest stack depth: 12360 bytes left
[    3.299779] ip (391) used greatest stack depth: 12344 bytes left
[   36.085060] ip (1440) used greatest stack depth: 12064 bytes left
[   53.705035] netem: version 1.3
[  593.352937] tc (12964) used greatest stack depth: 11936 bytes left