[    1.690663] ip (261) used greatest stack depth: 12640 bytes left
[    1.767175] ip (270) used greatest stack depth: 12320 bytes left
[   48.130439] netem: version 1.3
[  312.112290] ip (5340) used greatest stack depth: 12272 bytes left
[  532.482344] tc (11927) used greatest stack depth: 11872 bytes left