[    1.804777] ip (268) used greatest stack depth: 12424 bytes left
[    1.879959] ip (278) used greatest stack depth: 12328 bytes left
[    1.904971] ip (281) used greatest stack depth: 12280 bytes left
[    2.023289] ip (296) used greatest stack depth: 12184 bytes left
[    3.474932] ip (494) used greatest stack depth: 12168 bytes left
[    7.439647] ip (1053) used greatest stack depth: 12152 bytes left
[   81.599171] netem: version 1.3
[  614.136585] tc (24874) used greatest stack depth: 11864 bytes left