[    1.843424] ip (244) used greatest stack depth: 12392 bytes left
[    2.140984] ip (266) used greatest stack depth: 12344 bytes left
[    2.539498] MPTCP: bogus mpc option on established client sk
[   41.378248] ip (1791) used greatest stack depth: 12184 bytes left
[   50.547373] netem: version 1.3