[    1.848946] ip (257) used greatest stack depth: 12248 bytes left
[    2.251272] ip (295) used greatest stack depth: 12200 bytes left
[   53.198754] netem: version 1.3
[  552.473984] tc (15678) used greatest stack depth: 11912 bytes left
[  613.426376] pm_nl_ctl (18823) used greatest stack depth: 11752 bytes left