[    6.196604] ip (1225) used greatest stack depth: 12208 bytes left
[   30.398011] ip (2426) used greatest stack depth: 12112 bytes left
[   52.122611] netem: version 1.3
[   61.828769] ip (4478) used greatest stack depth: 12008 bytes left
[   72.785462] ip (4656) used greatest stack depth: 11984 bytes left
[  111.435202] ip (5043) used greatest stack depth: 11936 bytes left
[  526.985886] tc (21119) used greatest stack depth: 11784 bytes left