[    2.268441] ip (286) used greatest stack depth: 12360 bytes left
[    4.924195] ip (500) used greatest stack depth: 12344 bytes left
[   55.912936] netem: version 1.3
[  505.501040] ip (9891) used greatest stack depth: 12192 bytes left
[  617.049284] tc (13803) used greatest stack depth: 11936 bytes left