[  108.409460] ip (12522) used greatest stack depth: 12248 bytes left
[  156.366123] iperf3[20777]: segfault at 2e0000003c ip 00007f0cef70c496 sp 00007ffca7c086f0 error 4 in libc.so.6[6a496,7f0cef6ca000+175000] likely on CPU 0 (core 0, socket 0)
[  156.366266] 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
[  156.366343] iperf3[20738]: segfault at 5b0000006e ip 00007f239a277a4c sp 00007ffcd914e330 error 4 in libc.so.6[82a4c,7f239a21d000+175000] likely on CPU 1 (core 1, socket 0)
[  156.366525] Code: e9 3d fc ff ff 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 8b 07 83 f8 2f 0f 87 88 13 00 00 89 c2 83 c0 08 49 03 57 10 41 89 07 <4c> 8b 2a 4d 85 ed 0f 84 98 12 00 00 45 85 f6 0f 85 37 13 00 00 80