[    2.517112] ip (231) used greatest stack depth: 12408 bytes left
[    2.552591] ip (247) used greatest stack depth: 12360 bytes left
[    2.581330] ip (259) used greatest stack depth: 12232 bytes left
[   48.960488] ip (3453) used greatest stack depth: 11936 bytes left
[   52.047729] netem: version 1.3
[  562.670366] pm_nl_ctl (25041) used greatest stack depth: 11864 bytes left