[    2.486358] ip (218) used greatest stack depth: 12216 bytes left
[    6.682691] ip (1358) used greatest stack depth: 11992 bytes left
[   52.218551] netem: version 1.3
[   81.776946] ip (4851) used greatest stack depth: 11960 bytes left
[  557.200649] pm_nl_ctl (25036) used greatest stack depth: 11864 bytes left