[    2.175983] ip (264) used greatest stack depth: 12432 bytes left
[    2.594533] ip (292) used greatest stack depth: 12384 bytes left
[    8.818684] ip (782) used greatest stack depth: 12200 bytes left
[   61.894346] netem: version 1.3
[  615.739491] tc (15681) used greatest stack depth: 11936 bytes left
[  681.719675] pm_nl_ctl (18825) used greatest stack depth: 11880 bytes left