[   41.744532] ip (3604) used greatest stack depth: 12344 bytes left
[  168.931650] iperf3[17668]: segfault at 1a0 ip 00007f406eeb0764 sp 00007fff9004fac0 error 4 in libc.so.6[83764,7f406ee55000+175000] likely on CPU 2 (core 2, socket 0)
[  168.931944] Code: 24 c0 00 00 00 45 85 db 0f 85 f0 03 00 00 41 8b 47 04 3d af 00 00 00 0f 87 56 0a 00 00 89 c2 83 c0 10 49 03 57 10 41 89 47 04 <f2> 0f 10 02 f2 0f 11 84 24 a0 00 00 00 e9 ea 03 00 00 66 2e 0f 1f