[    2.305231] ip (271) used greatest stack depth: 12360 bytes left
[    2.546751] ip (289) used greatest stack depth: 12352 bytes left
[    9.035656] ip (726) used greatest stack depth: 12344 bytes left
[   53.180236] netem: version 1.3
[   62.078463] ip (2223) used greatest stack depth: 12200 bytes left
[  595.188274] tc (11923) used greatest stack depth: 11936 bytes left