[    2.051291] ip (268) used greatest stack depth: 12600 bytes left
[    2.146560] ip (277) used greatest stack depth: 12504 bytes left
[    2.244294] ip (286) used greatest stack depth: 12248 bytes left
[   53.460137] netem: version 1.3
[  556.908499] tc (15678) used greatest stack depth: 11952 bytes left
[  613.302854] pm_nl_ctl (18823) used greatest stack depth: 11832 bytes left