[    1.815588] ip (254) used greatest stack depth: 12368 bytes left
[    2.061201] ip (279) used greatest stack depth: 12320 bytes left
[   39.339745] ip (1878) used greatest stack depth: 12208 bytes left
[   47.328237] netem: version 1.3
[  348.543993] ip (5638) used greatest stack depth: 12032 bytes left
[  549.426619] tc (11912) used greatest stack depth: 11872 bytes left