[  689.068235] mptcp_connect (27694) used greatest stack depth: 11752 bytes left
[  690.631311] mptcp_connect (27882) used greatest stack depth: 11736 bytes left
[  699.296725] mptcp_connect (28737) used greatest stack depth: 11728 bytes left
[  702.440070] mptcp_connect (28925) used greatest stack depth: 11712 bytes left