[    1.836158] ip (246) used greatest stack depth: 12392 bytes left
[    2.022825] ip (258) used greatest stack depth: 12344 bytes left
[   22.974663] ip (1134) used greatest stack depth: 12296 bytes left
[   50.537172] netem: version 1.3
[  335.101133] ip (5439) used greatest stack depth: 12152 bytes left
[  556.018373] tc (11913) used greatest stack depth: 11872 bytes left