[  306.610055][ T4257] ip (4257) used greatest stack depth: 23952 bytes left
[  343.049371][ T5170] iperf3[5170]: segfault at 0 ip 0000000000000000 sp 00007ffc740a6000 error 14 likely on CPU 1 (core 1, socket 0)
[  343.049771][ T5170] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[  343.464644][ T5343] ip (5343) used greatest stack depth: 23648 bytes left
[  374.046567][ T6259] iperf3[6259]: segfault at 559e396da060 ip 0000559e396da060 sp 00007ffc0b3e54c0 error 15 likely on CPU 1 (core 1, socket 0)
[  374.051871][ T6259] Code: 00 00 21 00 00 00 00 00 00 00 2f 65 74 63 2f 6c 6f 63 61 6c 74 69 6d 65 00 00 00 00 00 00 00 00 00 00 c1 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 20 f8 6b 00 00 00 00 00 00 00 00 00 00 00
[  374.056123][ T6251] iperf3[6251]: segfault at 1d8 ip 00007f6f471e517b sp 00007fffd25a5bb0 error 4 in libiperf.so.0.0.0[1917b,7f6f471d7000+1c000] likely on CPU 2 (core 2, socket 0)
[  374.057100][ T6251] Code: f2 0f 59 0d 8f 1c 01 00 66 0f 2f c1 0f 82 8d 00 00 00 45 8b 8e 24 01 00 00 45 85 c9 0f 85 9d 00 00 00 c7 44 24 40 01 00 00 00 <4d> 8b bf d8 01 00 00 4d 85 ff 0f 84 95 00 00 00 49 8b 47 30 48 8b
[  374.058252][ T6257] iperf3[6257]: segfault at 3a0000001a ip 00007f6f470922bc sp 00007fffd25a54c8 error 4 in libc.so.6[ce2bc,7f6f46fec000+175000] likely on CPU 2 (core 2, socket 0)
[  374.059477][ T6257] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 89 f8 62 a1 fd 00 ef c0 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 34 01 00 00 <62> f3 7d 20 3f 07 00 c5 fb 93 c0 85 c0 74 55 f3 0f bc c0 c3 f3 0f
[  411.879600][ T7337] iperf3[7337]: segfault at 51610000 ip 0000000051610000 sp 00007ffd12bb7e50 error 14 likely on CPU 3 (core 3, socket 0)
[  411.880209][ T7337] Code: Unable to access opcode bytes at 0x5160ffd6.