[    2.152998] nft (258) used greatest stack depth: 12616 bytes left
[    2.440955] nft (272) used greatest stack depth: 12504 bytes left
[   87.223263] ip (8971) used greatest stack depth: 12376 bytes left
[  125.185778] iperf3[17741]: segfault at 0 ip 00007f4d0c98733c sp 00007ffcf057d918 error 4 in libc.so.6[ce33c,7f4d0c8e1000+175000] likely on CPU 1 (core 1, socket 0)
[  125.185938] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 89 f8 62 a1 fd 00 ef c0 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 34 01 00 00 <62> f3 7d 20 3f 07 00 c5 fb 93 c0 85 c0 74 55 f3 0f bc c0 c3 f3 0f
[  125.186150] iperf3[17757]: segfault at 0 ip 0000000000000000 sp 00007ffeb7c9cea0 error 14 likely on CPU 3 (core 3, socket 0)
[  125.186266] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[  125.186658] iperf3[17851]: segfault at 7f0400000002 ip 00007f0400000002 sp 00007ffe7f812100 error 14 likely on CPU 2 (core 2, socket 0)
[  125.186773] Code: Unable to access opcode bytes at 0x7f03ffffffd8.