[    1.846631] ip (245) used greatest stack depth: 12392 bytes left
[    2.038741] ip (257) used greatest stack depth: 12344 bytes left
[    2.502221] MPTCP: bogus mpc option on established client sk
[    5.660737] ip (534) used greatest stack depth: 12184 bytes left
[   16.759683] ip (1030) used greatest stack depth: 12040 bytes left
[   50.508111] netem: version 1.3