Segfault on Ubuntu 18.04 x64

[MrSurly]

Looks like there's an issue in libjlinkarm.so. This segfaults when ppk.measurement_readout_start() is called from main.py

Thread 7 "python3" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffed3df700 (LWP 14077)]
__memmove_avx_unaligned_erms ()
    at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:371
371	../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S: No such file or directory.
(gdb) bt
#0  __memmove_avx_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:371
#1  0x00007ffff2763830 in std::string::_Rep::_M_clone(std::allocator<char> const&, unsigned long) ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007ffff2763f5c in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::string const&)
    () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3  0x00007ffff247e968 in ?? ()
   from /home/epoulsen/.local/lib/python3.6/site-packages/pynrfjprog/linux_64bit_so/libjlinkarm_nrf52_nrfjprogdll.so
#4  0x00007ffff27a3762 in std::ostream::flush() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007ffff2476f60 in ?? ()
   from /home/epoulsen/.local/lib/python3.6/site-packages/pynrfjprog/linux_64bit_so/libjlinkarm_nrf52_nrfjprogdll.so
#6  0x00007ffff0dfc839 in ?? () from /opt/SEGGER/JLink/libjlinkarm.so
#7  0x00007ffff0dfcadb in ?? () from /opt/SEGGER/JLink/libjlinkarm.so
#8  0x00007ffff0dfcc8e in ?? () from /opt/SEGGER/JLink/libjlinkarm.so
#9  0x00007ffff0dd0108 in JLINKARM_IsConnected () from /opt/SEGGER/JLink/libjlinkarm.so
#10 0x00007ffff2471f14 in ?? ()
   from /home/epoulsen/.local/lib/python3.6/site-packages/pynrfjprog/linux_64bit_so/libjlinkarm_nrf52_nrfjprogdll.so
#11 0x00007ffff247580a in NRFJPROG_rtt_read ()
   from /home/epoulsen/.local/lib/python3.6/site-packages/pynrfjprog/linux_64bit_so/libjlinkarm_nrf52_nrfjprogdll.so
#12 0x00007ffff2a28ea2 in NRFJPROG_rtt_read ()
   from /home/epoulsen/.local/lib/python3.6/site-packages/pynrfjprog/linux_64bit_so/libnrfjprogdll.so
#13 0x00007ffff5969dae in ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#14 0x00007ffff596971f in ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
#15 0x00007ffff5b7dba4 in _ctypes_callproc () from /usr/lib/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so
#16 0x00007ffff5b7e223 in ?? () from /usr/lib/python3.6/lib-dynload/_ctypes.cpython-36m-x86_64-linux-gnu.so
#17 0x000000000059f9fc in _PyObject_FastCallKeywords ()
#18 0x0000000000511b0a in ?? ()
#19 0x00000000004f5277 in _PyEval_EvalFrameDefault ()
#20 0x00000000004f3338 in ?? ()
#21 0x0000000000510fb0 in ?? ()
#22 0x00000000005119bd in ?? ()
#23 0x00000000004f6070 in _PyEval_EvalFrameDefault ()
#24 0x0000000000510375 in _PyFunction_FastCallDict ()
#25 0x00000000005917a1 in ?? ()
#26 0x000000000059cf9e in PyObject_Call ()
#27 0x00000000004f6903 in _PyEval_EvalFrameDefault ()
#28 0x0000000000510c78 in ?? ()
#29 0x00000000005119bd in ?? ()
#30 0x00000000004f5277 in _PyEval_EvalFrameDefault ()
#31 0x0000000000510c78 in ?? ()
#32 0x00000000005119bd in ?? ()
#33 0x00000000004f5277 in _PyEval_EvalFrameDefault ()
#34 0x0000000000510375 in _PyFunction_FastCallDict ()
#35 0x00000000005917a1 in ?? ()
#36 0x000000000059cf9e in PyObject_Call ()
#37 0x00000000005dd542 in ?? ()
#38 0x00007ffff77cc6db in start_thread (arg=0x7fffed3df700) at pthread_create.c:463
#39 0x00007ffff7b0588f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95