[  252.110310][ T4216] ip (4216) used greatest stack depth: 24032 bytes left
[  280.752578][ T5298] ip (5298) used greatest stack depth: 23968 bytes left
[  311.912097][ T6197] traps: iperf3[6197] general protection fault ip:7f5ee0ffe2bc sp:7ffd96480cf8 error:0 in libc.so.6[ce2bc,7f5ee0f58000+175000]
[  343.229003][ T7296] iperf3[7296]: segfault at 13a249db ip 0000000013a249db sp 00007fffc91b5870 error 14 likely on CPU 0 (core 0, socket 0)
[  343.229392][ T7296] Code: Unable to access opcode bytes at 0x13a249b1.