[    2.660336] ip (230) used greatest stack depth: 12552 bytes left
[    2.683232] ip (239) used greatest stack depth: 12408 bytes left
[    2.706652] ip (249) used greatest stack depth: 12264 bytes left
[    2.729337] ip (258) used greatest stack depth: 12232 bytes left
[    3.874311] ip (559) used greatest stack depth: 11992 bytes left
[   53.511927] netem: version 1.3
[  540.147870] pm_nl_ctl (24824) used greatest stack depth: 11864 bytes left