[    2.239816] ip (257) used greatest stack depth: 12392 bytes left
[    2.817774] ip (294) used greatest stack depth: 12344 bytes left
[   49.837320] ip (2099) used greatest stack depth: 12064 bytes left
[   57.380822] netem: version 1.3
[  607.081634] tc (12615) used greatest stack depth: 11936 bytes left