[    2.501893] nft (257) used greatest stack depth: 12736 bytes left
[    2.879982] nft (274) used greatest stack depth: 12616 bytes left
[   31.790529] ip (2890) used greatest stack depth: 12528 bytes left
[   35.404024] ip (3258) used greatest stack depth: 12344 bytes left
[  121.292194] iperf3[10356]: segfault at 8 ip 00007fecb8512085 sp 00007ffea1cc3b80 error 4 in libc.so.6[65085,7fecb84d5000+175000] likely on CPU 2 (core 2, socket 0)
[  121.292401] Code: 4c 89 c3 49 83 c4 08 eb 21 0f 1f 40 00 b8 00 00 00 00 74 31 49 89 04 1e 49 83 c4 08 49 83 c6 08 4c 3b 75 b8 0f 84 8b fd ff ff <49> 8b 0c 24 48 83 f9 01 76 d9 4c 89 ea 4c 89 fe 4c 89 f7 e8 73 4c
[  121.293218] iperf3[10313]: segfault at 9 ip 00007f38bfea2085 sp 00007ffc304a5f80 error 4 in libc.so.6[65085,7f38bfe65000+175000] likely on CPU 2 (core 2, socket 0)
[  121.293463] Code: 4c 89 c3 49 83 c4 08 eb 21 0f 1f 40 00 b8 00 00 00 00 74 31 49 89 04 1e 49 83 c4 08 49 83 c6 08 4c 3b 75 b8 0f 84 8b fd ff ff <49> 8b 0c 24 48 83 f9 01 76 d9 4c 89 ea 4c 89 fe 4c 89 f7 e8 73 4c