[    2.256151] ip (277) used greatest stack depth: 12360 bytes left
[    2.368959] ip (286) used greatest stack depth: 12344 bytes left
[   57.160988] netem: version 1.3
[  105.509437] ip (2914) used greatest stack depth: 12160 bytes left
[  612.190071] tc (12963) used greatest stack depth: 11936 bytes left