[   84.939061] iperf3[10166]: segfault at 4 ip 00007f55054b4496 sp 00007ffdee29fbd0 error 4 in libc.so.6[6a496,7f5505472000+175000] likely on CPU 0 (core 0, socket 0)
[   84.939216] Code: 4d 85 c0 74 d7 85 c9 0f 85 66 1b 00 00 45 85 f6 0f 85 e4 1a 00 00 66 0f 1f 44 00 00 48 8b b5 48 ff ff ff 48 8b 15 22 e9 18 00 <8b> 46 04 48 63 4e 08 8b 36 89 85 c8 fe ff ff 64 48 8b 12 48 89 c8
[   88.153146] ip (12532) used greatest stack depth: 12248 bytes left