[    1.910416] ip (257) used greatest stack depth: 12304 bytes left
[    2.220516] ip (286) used greatest stack depth: 12272 bytes left
[   50.284555] netem: version 1.3
[  419.894898] ip (9870) used greatest stack depth: 12240 bytes left
[  561.594798] tc (15676) used greatest stack depth: 11952 bytes left
[  619.188719] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left