[   27.012276] ip (2514) used greatest stack depth: 12360 bytes left
[  127.905089] iperf3[10199]: segfault at 17 ip 00007f86220b6a0c sp 00007fff68e07200 error 4 in libc.so.6[82a0c,7f862205c000+175000] likely on CPU 2 (core 2, socket 0)
[  127.905253] iperf3[10205]: segfault at 39d ip 00007f613df62670 sp 00007fff13773bf0 error 4 likely on CPU 1 (core 1, socket 0)
[  127.905260] Code: e8 25 24 ff ff 80 7f 40 02 75 a3 c7 85 98 02 00 00 01 00 00 00 48 8d bd b0 02 00 00 e8 89 21 ff ff 48 89 ef ff 95 78 02 00 00 <48> 8b 85 90 03 00 00 c6 45 40 0e 48 85 c0 74 05 48 89 ef ff d0 48
[  127.905386] Code: e9 3d fc ff ff 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 8b 07 83 f8 2f 0f 87 88 13 00 00 89 c2 83 c0 08 49 03 57 10 41 89 07 <4c> 8b 2a 4d 85 ed 0f 84 98 12 00 00 45 85 f6 0f 85 37 13 00 00 80
[  156.983550] ip (17559) used greatest stack depth: 12344 bytes left