[    2.387598] ip (257) used greatest stack depth: 12912 bytes left
[    2.438012] ip (260) used greatest stack depth: 12320 bytes left
[    2.828684] ip (279) used greatest stack depth: 12272 bytes left
[   65.799215] netem: version 1.3
[  108.852485] ip (3314) used greatest stack depth: 12016 bytes left
[  642.856193] tc (15593) used greatest stack depth: 11936 bytes left
[  705.369640] pm_nl_ctl (18732) used greatest stack depth: 11784 bytes left