[    2.133874] nft (259) used greatest stack depth: 12568 bytes left
[   10.181689] ip (684) used greatest stack depth: 12520 bytes left
[  114.085997] ip (15038) used greatest stack depth: 12376 bytes left
[  127.134018] ip (17535) used greatest stack depth: 12360 bytes left
[  136.073506] traps: iperf3[17711] general protection fault ip:7f0feb95ed29 sp:7ffd726fba48 error:0 in libc.so.6[107d29,7f0feb87f000+175000]
[  136.073993] traps: iperf3[17717] general protection fault ip:7f6ec5fdad29 sp:7fffd70b3888 error:0 in libc.so.6[107d29,7f6ec5efb000+175000]
[  136.074092] traps: iperf3[17708] general protection fault ip:7f74761fbd29 sp:7ffcfe0ffda8 error:0 in libc.so.6[107d29,7f747611c000+175000]
[  136.074137] traps: iperf3[17687] general protection fault ip:7f4e56f84d29 sp:7ffe882355d8 error:0 in libc.so.6[107d29,7f4e56ea5000+175000]
[  197.549833] ip (27786) used greatest stack depth: 12136 bytes left