[    2.068174] ip (267) used greatest stack depth: 12520 bytes left
[    2.367439] ip (295) used greatest stack depth: 12392 bytes left
[    3.467316] ip (409) used greatest stack depth: 12248 bytes left
[   53.168927] netem: version 1.3
[  554.923620] tc (15679) used greatest stack depth: 11952 bytes left
[  612.679962] pm_nl_ctl (18822) used greatest stack depth: 11752 bytes left