[    1.616791] ip (254) used greatest stack depth: 12304 bytes left
[    1.887833] ip (286) used greatest stack depth: 12272 bytes left
[   48.493933] netem: version 1.3
[  561.367761] tc (15678) used greatest stack depth: 11936 bytes left
[  680.174881] pm_nl_ctl (18825) used greatest stack depth: 11624 bytes left