[    1.649760] ip (254) used greatest stack depth: 12144 bytes left
[    2.832655] ip (394) used greatest stack depth: 12096 bytes left
[   49.616358] netem: version 1.3
[   67.335072] ip (3431) used greatest stack depth: 11936 bytes left
[  555.271999] tc (16940) used greatest stack depth: 11896 bytes left
[  611.439375] pm_nl_ctl (20242) used greatest stack depth: 11864 bytes left