[    2.126392] ip (256) used greatest stack depth: 12912 bytes left
[    2.164124] ip (259) used greatest stack depth: 12320 bytes left
[    2.464482] ip (278) used greatest stack depth: 12272 bytes left
[   61.580487] netem: version 1.3
[  407.581417] ip (8899) used greatest stack depth: 12016 bytes left
[  605.708640] tc (15595) used greatest stack depth: 11936 bytes left
[  670.655087] pm_nl_ctl (18734) used greatest stack depth: 11872 bytes left