[    2.093116] ip (257) used greatest stack depth: 12392 bytes left
[    2.575104] ip (288) used greatest stack depth: 12344 bytes left
[   43.990978] ip (1984) used greatest stack depth: 12192 bytes left
[   60.910337] netem: version 1.3
[  662.402080] pm_nl_ctl (18730) used greatest stack depth: 11872 bytes left