[    2.012044] ip (254) used greatest stack depth: 12320 bytes left
[    2.446660] ip (294) used greatest stack depth: 12288 bytes left
[   53.298270] netem: version 1.3
[  579.417166] tc (15679) used greatest stack depth: 11936 bytes left
[  635.488147] pm_nl_ctl (18825) used greatest stack depth: 11880 bytes left