[   11.763632] ip (675) used greatest stack depth: 12320 bytes left
[  112.679664] iperf3[8431]: segfault at d8 ip 00007f3ddb8685f4 sp 00007ffcd2c6a220 error 4 in libiperf.so.0.0.0[7f3ddb859000+1c000] likely on CPU 3 (core 3, socket 0)
[  112.679718] iperf3[8459]: segfault at d8 ip 00007f6290f7e5f4 sp 00007fff64120530 error 4 in libiperf.so.0.0.0[7f6290f6f000+1c000] likely on CPU 1 (core 1, socket 0)
[  112.679862] Code: e9 7f ff ff ff e8 5c 27 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 55 0f b6 47 28 48 89 fd 3c 63 74 61 3c 73 74 57 <8b> bd d8 00 00 00 b8 0b 00 00 00 85 ff 78 21 88 45 40 48 8d 75 40
[  112.679970] Code: e9 7f ff ff ff e8 5c 27 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 55 0f b6 47 28 48 89 fd 3c 63 74 61 3c 73 74 57 <8b> bd d8 00 00 00 b8 0b 00 00 00 85 ff 78 21 88 45 40 48 8d 75 40
[  295.334274] ip (30699) used greatest stack depth: 12272 bytes left