[    1.510261] ip (252) used greatest stack depth: 12296 bytes left
[    1.810144] ip (294) used greatest stack depth: 12248 bytes left
[   46.296992] netem: version 1.3
[  571.977584] tc (15687) used greatest stack depth: 11952 bytes left
[  631.389256] pm_nl_ctl (18832) used greatest stack depth: 11872 bytes left