[    2.200674] ip (273) used greatest stack depth: 12640 bytes left
[    2.313144] ip (282) used greatest stack depth: 12616 bytes left
[    2.421313] ip (292) used greatest stack depth: 12384 bytes left
[    3.934355] ip (423) used greatest stack depth: 12360 bytes left
[   42.107086] ip (2151) used greatest stack depth: 12104 bytes left
[   54.300903] netem: version 1.3
[  596.531671] tc (15684) used greatest stack depth: 11936 bytes left
[  666.044043] pm_nl_ctl (18829) used greatest stack depth: 11856 bytes left