[    2.642697] ip (286) used greatest stack depth: 12360 bytes left
[    4.067458] ip (392) used greatest stack depth: 12344 bytes left
[    6.645504] ip (592) used greatest stack depth: 12288 bytes left
[   55.120111] netem: version 1.3
[  424.328980] ip (7259) used greatest stack depth: 12192 bytes left
[  618.928641] tc (12616) used greatest stack depth: 11936 bytes left