[    2.399869] ip (277) used greatest stack depth: 12360 bytes left
[    2.521628] ip (286) used greatest stack depth: 12344 bytes left
[   57.996373] netem: version 1.3
[   68.623669] ip (2490) used greatest stack depth: 12304 bytes left
[  549.853357] ip (10531) used greatest stack depth: 12288 bytes left
[  628.894293] tc (12965) used greatest stack depth: 11936 bytes left