[    2.173871] ip (258) used greatest stack depth: 12392 bytes left
[    2.606660] ip (289) used greatest stack depth: 12344 bytes left
[    8.570955] ip (787) used greatest stack depth: 12192 bytes left
[   62.327344] netem: version 1.3
[  686.174171] pm_nl_ctl (18728) used greatest stack depth: 11872 bytes left