[   12.193403] ip (215) used greatest stack depth: 12312 bytes left
[   12.311986] ip (256) used greatest stack depth: 12072 bytes left
[   14.053819] ip (728) used greatest stack depth: 12040 bytes left
[   61.827728] netem: version 1.3
[  569.393866] pm_nl_ctl (24866) used greatest stack depth: 11864 bytes left