[  308.961126][ T4076] iperf3[4076]: segfault at 0 ip 0000000000000000 sp 00007ffdbd5aea70 error 14 likely on CPU 2 (core 2, socket 0)
[  308.961817][ T4076] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[  309.421611][ T4247] ip (4247) used greatest stack depth: 23664 bytes left