[  117.528294] iperf3[15154]: segfault at 2 ip 00007f2578134575 sp 00007ffdfbdddda0 error 4 in libc.so.6[6a575,7f25780f2000+175000] likely on CPU 2 (core 2, socket 0)
[  117.528447] Code: 31 f6 f6 40 0c 08 8b 85 20 ff ff ff 0f 44 c6 89 85 10 ff ff ff 48 83 bd 18 ff ff ff 00 0f 84 9a 0d 00 00 48 8b 85 18 ff ff ff <0f> b6 00 8d 50 ff 80 fa 7d 0f 87 05 14 00 00 8b 95 e8 fe ff ff 4c
[  159.497945] ip (25476) used greatest stack depth: 12184 bytes left