[    2.434607] ip (279) used greatest stack depth: 12352 bytes left
[    4.529483] ip (439) used greatest stack depth: 12344 bytes left
[   53.832965] netem: version 1.3
[   75.863590] ip (2365) used greatest stack depth: 12312 bytes left
[  609.714714] tc (11913) used greatest stack depth: 11936 bytes left