[    2.193592] ip (280) used greatest stack depth: 12320 bytes left
[   49.351860] netem: version 1.3
[  128.598171] ip (2723) used greatest stack depth: 12272 bytes left
[  164.594326] ip (3074) used greatest stack depth: 12128 bytes left
[  326.117582] ip (5005) used greatest stack depth: 12048 bytes left
[  565.647221] tc (11919) used greatest stack depth: 11872 bytes left