[    1.699039] nft (258) used greatest stack depth: 12552 bytes left
[    2.766006] nft (328) used greatest stack depth: 12488 bytes left
[    8.474534] ip (792) used greatest stack depth: 12360 bytes left
[   23.048833] ip (3645) used greatest stack depth: 12232 bytes left
[   82.450374] iperf3[10201]: segfault at 0 ip 0000000000000000 sp 00007fffbda60370 error 14 likely on CPU 1 (core 1, socket 0)
[   82.450478] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[   82.450810] iperf3[10166]: segfault at 0 ip 0000000000000000 sp 00007fff1b353590 error 14 likely on CPU 3 (core 3, socket 0)
[   82.450903] Code: Unable to access opcode bytes at 0xffffffffffffffd6.