[    1.790476] nft (259) used greatest stack depth: 12616 bytes left
[    2.857060] nft (325) used greatest stack depth: 12584 bytes left
[   13.352268] nft (1287) used greatest stack depth: 12568 bytes left
[   14.500134] nft (1437) used greatest stack depth: 12504 bytes left
[   85.418361] ip (8975) used greatest stack depth: 12376 bytes left
[  105.383210] ip (12534) used greatest stack depth: 12248 bytes left
[  125.301706] traps: iperf3[17730] general protection fault ip:7f1bf5a12ca9 sp:7ffef26b9f98 error:0 in libc.so.6[107ca9,7f1bf5933000+175000]
[  125.301964] traps: iperf3[17816] general protection fault ip:7f5c92c31867 sp:7ffeccb47d18 error:0 in libc.so.6[113867,7f5c92b46000+175000]