[    2.355764] ip (256) used greatest stack depth: 12320 bytes left
[    2.395389] ip (259) used greatest stack depth: 12272 bytes left
[   66.966342] netem: version 1.3
[   95.818294] ip (3332) used greatest stack depth: 12088 bytes left
[  617.488419] tc (15595) used greatest stack depth: 11896 bytes left
[  683.585871] pm_nl_ctl (18732) used greatest stack depth: 11592 bytes left