[    1.717126] ip (245) used greatest stack depth: 12392 bytes left
[    1.905841] ip (257) used greatest stack depth: 12344 bytes left
[    2.527657] MPTCP: bogus mpc option on established client sk
[    3.335904] ip (368) used greatest stack depth: 12312 bytes left
[    5.648472] ip (556) used greatest stack depth: 12072 bytes left
[   49.911765] netem: version 1.3