[    2.489660] ip (215) used greatest stack depth: 12312 bytes left
[    2.567951] ip (237) used greatest stack depth: 12304 bytes left
[    2.590573] ip (246) used greatest stack depth: 12080 bytes left
[    3.811580] ip (575) used greatest stack depth: 12040 bytes left
[   52.368359] netem: version 1.3
[  555.495265] pm_nl_ctl (24677) used greatest stack depth: 11856 bytes left