[    1.644963] ip (260) used greatest stack depth: 12424 bytes left
[    1.725359] ip (268) used greatest stack depth: 12392 bytes left
[    1.793347] ip (277) used greatest stack depth: 12376 bytes left
[    1.861369] ip (286) used greatest stack depth: 12248 bytes left
[    1.930142] ip (295) used greatest stack depth: 12216 bytes left
[   49.658322] netem: version 1.3
[  492.379520] ip (13473) used greatest stack depth: 12200 bytes left
[  563.390055] tc (16939) used greatest stack depth: 11896 bytes left
[  620.558995] pm_nl_ctl (20239) used greatest stack depth: 11856 bytes left