[    2.469215] ip (220) used greatest stack depth: 12576 bytes left
[    2.525916] ip (238) used greatest stack depth: 12520 bytes left
[    3.058312] ip (379) used greatest stack depth: 12376 bytes left
[    4.311321] ip (728) used greatest stack depth: 12040 bytes left
[   51.966695] netem: version 1.3
[  548.575265] pm_nl_ctl (24674) used greatest stack depth: 11856 bytes left