[    2.487260] ip (220) used greatest stack depth: 12192 bytes left
[    2.565536] ip (246) used greatest stack depth: 12080 bytes left
[    3.775639] ip (574) used greatest stack depth: 12040 bytes left
[   52.634812] netem: version 1.3
[  553.210973] pm_nl_ctl (24675) used greatest stack depth: 11856 bytes left