[    1.951980] ip (258) used greatest stack depth: 12344 bytes left
[    6.219937] ip (583) used greatest stack depth: 12192 bytes left
[   54.630851] netem: version 1.3
[  414.651214] ip (6750) used greatest stack depth: 12064 bytes left
[  617.014710] tc (12617) used greatest stack depth: 11936 bytes left