[    1.673512] ip (254) used greatest stack depth: 12144 bytes left
[   50.476588] netem: version 1.3
[  534.890808] ip (15581) used greatest stack depth: 12096 bytes left
[  577.114076] tc (16941) used greatest stack depth: 11896 bytes left
[  636.259835] pm_nl_ctl (20243) used greatest stack depth: 11864 bytes left