[    2.166160] ip (269) used greatest stack depth: 12608 bytes left
[    2.282650] ip (278) used greatest stack depth: 12272 bytes left
[    2.398201] ip (287) used greatest stack depth: 12144 bytes left
[   56.424546] netem: version 1.3
[  617.660568] tc (15593) used greatest stack depth: 11896 bytes left
[  684.443173] pm_nl_ctl (18730) used greatest stack depth: 11872 bytes left