[    2.502093] ip (274) used greatest stack depth: 12704 bytes left
[    2.615003] ip (281) used greatest stack depth: 12376 bytes left
[    4.126327] ip (396) used greatest stack depth: 12256 bytes left
[   62.719425] netem: version 1.3
[  504.860723] ip (10344) used greatest stack depth: 12128 bytes left
[  644.920137] tc (15685) used greatest stack depth: 11936 bytes left
[  707.976676] pm_nl_ctl (18832) used greatest stack depth: 11880 bytes left