[    1.401914] ip (259) used greatest stack depth: 12168 bytes left
[   64.970913] netem: version 1.3
[   84.007996] ip (4744) used greatest stack depth: 11944 bytes left
[  611.184328] tc (23601) used greatest stack depth: 11880 bytes left
[  674.331095] pm_nl_ctl (27730) used greatest stack depth: 11848 bytes left