[    2.329697] ip (260) used greatest stack depth: 12392 bytes left
[    2.891927] ip (288) used greatest stack depth: 12344 bytes left
[   51.933303] ip (2143) used greatest stack depth: 12192 bytes left
[   67.377853] netem: version 1.3
[  674.518959] pm_nl_ctl (18723) used greatest stack depth: 11864 bytes left