[    1.767090] ip (253) used greatest stack depth: 12152 bytes left
[   71.019555] ip (4715) used greatest stack depth: 12136 bytes left
[   76.449458] netem: version 1.3
[  103.998254] ip (6010) used greatest stack depth: 12088 bytes left
[  612.715352] tc (24873) used greatest stack depth: 11864 bytes left