[    1.796479] ip (249) used greatest stack depth: 12368 bytes left
[    2.156334] ip (279) used greatest stack depth: 12320 bytes left
[   49.604183] netem: version 1.3
[  272.647707] ip (4441) used greatest stack depth: 12272 bytes left
[  303.622418] ip (5005) used greatest stack depth: 12160 bytes left
[  541.325133] tc (11916) used greatest stack depth: 11872 bytes left