[  147.877636] iperf3[20813]: segfault at 6 ip 00007f46d62d5891 sp 00007ffea8187590 error 6 in libc.so.6[6b891,7f46d6292000+175000] likely on CPU 3 (core 3, socket 0)
[  147.877812] Code: 45 85 c9 0f 85 00 f3 ff ff e9 15 f9 ff ff 4d 89 f7 45 89 cd 48 85 db 75 2a e9 e8 08 00 00 0f 1f 00 48 8d 48 01 49 89 4c 24 28 <88> 10 4c 89 f2 43 8d 44 3d 00 4c 29 fa 44 29 f0 48 01 da 0f 84 f3
[  147.878264] iperf3[20771]: segfault at 7fffb6e28dd0 ip 00007fffb6e28dd0 sp 00007fffb6e28620 error 15 likely on CPU 1 (core 1, socket 0)
[  147.878391] Code: 00 00 61 6a 1e 07 d3 7f 00 00 50 8f e2 b6 ff 7f 00 00 aa 78 04 07 d3 7f 00 00 00 00 00 00 00 00 00 00 c0 8e e2 b6 ff 7f 00 00 <01> 80 ad fb 00 00 00 00 30 91 e2 b6 ff 7f 00 00 30 91 e2 b6 ff 7f