I have caught a gdb backtrace from the Apache WSGI process after setting threads=1 and processes=1:

Although I have installed the libpython3.6 debug symbols package the frame does not appear to contain useful information.

Including the complete backtrace below:
Thread 4 "(wsgi:gnocchi-a" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fdc337d8700 (LWP 25792)]
0x00007fdc361ba9ee in _PyCFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
(gdb) bt
#0  0x00007fdc361ba9ee in _PyCFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#1  0x00007fdc3620fb61 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#2  0x00007fdc361f50e5 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#3  0x00007fdc28405ffc in __Pyx_PyObject_Call (func=0x7fdc28b31c60, arg=0x7fdbf3424b88, kw=0x7fdbf3406f78)
    at ./obj-x86_64-linux-gnu/src/pybind/rados3/pyrex/rados.c:74295
#4  0x00007fdc2848ac14 in __pyx_pf_5rados_8requires_7wrapper_validate_func (__pyx_v_kwargs=0x7fdbf3406f78, __pyx_v_args=0x7fdbf3424b88, 
    __pyx_self=<optimized out>) at ./obj-x86_64-linux-gnu/src/pybind/rados3/pyrex/rados.c:5406
#5  __pyx_pw_5rados_8requires_7wrapper_1validate_func (__pyx_self=<optimized out>, __pyx_args=0x7fdbf3424b88, __pyx_kwds=<optimized out>)
    at ./obj-x86_64-linux-gnu/src/pybind/rados3/pyrex/rados.c:4829
#6  0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#7  0x00007fdc36210126 in _PyObject_FastCallKeywords () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#8  0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#9  0x00007fdc36127e65 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#10 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#11 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#12 0x00007fdc36127e65 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#13 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#14 0x00007fdc36122eeb in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#15 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#16 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#17 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#18 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#19 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#20 0x00007fdc361230fe in PyEval_EvalCodeEx () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#21 0x00007fdc361e3863 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#22 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#23 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#24 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#25 0x00007fdc36122eeb in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#26 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#27 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#28 0x00007fdc36122eeb in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#29 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#30 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#31 0x00007fdc36122951 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#32 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#33 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#34 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#35 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#36 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#37 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#38 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#39 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#40 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#41 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#42 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#43 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#44 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#45 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#46 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#47 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
---Type <return> to continue, or q <return> to quit---  
#48 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#49 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#50 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#51 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#52 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#53 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#54 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#55 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#56 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#57 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#58 0x00007fdc36122951 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#59 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#60 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#61 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#62 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#63 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#64 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#65 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#66 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#67 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#68 0x00007fdc36127e65 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#69 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#70 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#71 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#72 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#73 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#74 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#75 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#76 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#77 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#78 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#79 0x00007fdc361228b9 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#80 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#81 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#82 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#83 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#84 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#85 0x00007fdc36122951 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#86 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#87 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#88 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#89 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#90 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#91 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#92 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#93 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#94 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#95 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#96 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#97 0x00007fdc36127e65 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#98 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
---Type <return> to continue, or q <return> to quit---
#99 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#100 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#101 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#102 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#103 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#104 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#105 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#106 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#107 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#108 0x00007fdc361228b9 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#109 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#110 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#111 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#112 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#113 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#114 0x00007fdc36122951 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#115 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#116 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#117 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#118 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#119 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#120 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#121 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#122 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#123 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#124 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#125 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#126 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#127 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#128 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#129 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#130 0x00007fdc3620fa99 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#131 0x00007fdc36122ae8 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#132 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#133 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#134 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#135 0x00007fdc36127e65 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#136 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#137 0x00007fdc36122d1e in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#138 0x00007fdc36129092 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#139 0x00007fdc361214a3 in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#140 0x00007fdc36122a43 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#141 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#142 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#143 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#144 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#145 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#146 0x00007fdc361228b9 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#147 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#148 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#149 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
---Type <return> to continue, or q <return> to quit---
#150 0x00007fdc36127fb5 in _PyEval_EvalFrameDefault () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#151 0x00007fdc3612263f in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#152 0x00007fdc36122951 in _PyFunction_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#153 0x00007fdc3620fb41 in _PyObject_FastCallDict () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#154 0x00007fdc3621026d in _PyObject_Call_Prepend () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#155 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#156 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#157 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#158 0x00007fdc3619beed in ?? () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#159 0x00007fdc362102d8 in PyObject_Call () from target:/usr/lib/x86_64-linux-gnu/libpython3.6m.so.1.0
#160 0x00007fdc36671d18 in Adapter_run (object=0x7fdc15bfe3c8, self=<optimized out>) at src/server/mod_wsgi.c:3141
#161 wsgi_execute_script (r=r@entry=0x7fdc3a6940a0) at src/server/mod_wsgi.c:4093
#162 0x00007fdc36674dec in wsgi_hook_daemon_handler (c=<optimized out>) at src/server/mod_wsgi.c:12879
#163 wsgi_process_socket (daemon=0x7fdc3a7c4e60, bucket_alloc=<optimized out>, sock=<optimized out>, p=<optimized out>) at src/server/mod_wsgi.c:8498
#164 wsgi_daemon_worker (thread=0x7fdc3a7e2090, p=<optimized out>) at src/server/mod_wsgi.c:8826
#165 wsgi_daemon_thread (thd=<optimized out>, data=0x7fdc3a7e2090) at src/server/mod_wsgi.c:8913
#166 0x00007fdc39d816db in start_thread (arg=0x7fdc337d8700) at pthread_create.c:463
#167 0x00007fdc39aaa88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb)