[    1.519260] ip (252) used greatest stack depth: 12168 bytes left
[   49.303053] netem: version 1.3
[  444.888733] ip (11815) used greatest stack depth: 12120 bytes left
[  544.766888] tc (16941) used greatest stack depth: 11896 bytes left
[  602.463243] pm_nl_ctl (20239) used greatest stack depth: 11848 bytes left