[  293.096867][ T4244] ip (4244) used greatest stack depth: 23648 bytes left
[  326.801325][ T5148] iperf3[5148]: segfault at 50 ip 00007f1a51161b3d sp 00007ffcad452710 error 4 in libc.so.6[69b3d,7f1a51120000+175000] likely on CPU 2 (core 2, socket 0)
[  326.801909][ T5148] Code: c7 85 18 ff ff ff 00 00 00 00 c7 85 ec fe ff ff 00 00 00 00 48 c7 85 f0 fe ff ff 00 00 00 00 48 8b 09 a8 10 0f 84 53 02 00 00 <66> 0f 6f 11 88 95 20 ff ff ff 66 0f 6f ca 66 0f 6f c2 0f 29 95 30