[    2.247704] ip (258) used greatest stack depth: 12384 bytes left
[    2.295598] ip (261) used greatest stack depth: 12320 bytes left
[    2.792635] ip (289) used greatest stack depth: 12272 bytes left
[    6.067500] ip (537) used greatest stack depth: 12248 bytes left
[   60.818194] netem: version 1.3
[   69.674759] ip (3012) used greatest stack depth: 12128 bytes left
[  629.486128] tc (15596) used greatest stack depth: 11936 bytes left
[  693.966519] pm_nl_ctl (18733) used greatest stack depth: 11768 bytes left