[    2.326234] ip (292) used greatest stack depth: 12384 bytes left
[    8.088626] ip (771) used greatest stack depth: 12256 bytes left
[   59.102344] netem: version 1.3
[  611.974318] tc (15680) used greatest stack depth: 11936 bytes left
[  680.151300] pm_nl_ctl (18825) used greatest stack depth: 11880 bytes left