[    2.463831] ip (272) used greatest stack depth: 12368 bytes left
[    2.707684] ip (290) used greatest stack depth: 12352 bytes left
[   18.939656] ip (1024) used greatest stack depth: 12296 bytes left
[   53.983643] netem: version 1.3
[  365.485552] ip (5333) used greatest stack depth: 12200 bytes left
[  422.911878] ip (6866) used greatest stack depth: 12136 bytes left
[  539.446300] ip (9883) used greatest stack depth: 12072 bytes left
[  611.695966] tc (11918) used greatest stack depth: 11936 bytes left