Weird SIGSEGV in protobuf import

[snehasinha13]

Protobuf version - 3.7.1

int main() {
auto scopedInterpreter = std::make_uniquepy::scoped_interpreter();
....
char* argv[] = {NULL, NULL};
PySys_SetArgvEx(0, argv, 0);
....
py::module proto = py::module::import("node_generator_protos.proto.launch_graph_pb2"); ====> Crashes with SIGSEGV
std::cerr << "imported proto" << std::endl;
return 0;
}

This program crashes if the C++ code also uses protobuf and its linked against protobuf shared libraries, otherwise the program runs fine.

This is stack trace that I see doing the import.
Signal: SIGSEGV 11
Timestamp: 1601481987
Local time and date: 2020-09-30 09:06:27
#0 0x7f0ab8c8788f ?? in ??:0
from object /lib/x86_64-linux-gnu/libpthread-2.27.so
#1 0x7f0a91e715a1 __strlen_avx2 in ../sysdeps/x86_64/multiarch/strlen-avx2.S:62
from object /lib/x86_64-linux-gnu/libc-2.27.so
#2 0x7f0a92d0550f PyString_FromString in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#3 0x7f0a92cca5d3 PyDict_SetItemString in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#4 0x7f0a3fb626cc ?? in ??:0
from object /home/ssinha/.cache/bazel/_bazel_ssinha/4ed03b91f931e2cafa39d4efa70ce058/external/pypi__protobuf_3_7_1/google/protobuf/pyext/_message.so
#5 0x7f0a3fb62799 google::protobuf::python::InitDescriptor() in ??:0
from object /home/ssinha/.cache/bazel/_bazel_ssinha/4ed03b91f931e2cafa39d4efa70ce058/external/pypi__protobuf_3_7_1/google/protobuf/pyext/_message.so
#6 0x7f0a3fb4bfbf google::protobuf::python::InitProto2MessageModule(_object*) in ??:0
from object /home/ssinha/.cache/bazel/_bazel_ssinha/4ed03b91f931e2cafa39d4efa70ce058/external/pypi__protobuf_3_7_1/google/protobuf/pyext/_message.so
#7 0x7f0a3fb49442 init_message in ??:0
from object /home/ssinha/.cache/bazel/_bazel_ssinha/4ed03b91f931e2cafa39d4efa70ce058/external/pypi__protobuf_3_7_1/google/protobuf/pyext/_message.so
#8 0x7f0a92bfd9a8 _PyImport_LoadDynamicModule in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#9 0x7f0a92d2a898 ?? in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#10 0x7f0a92c0bc9e ?? in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#11 0x7f0a92d2ae65 PyImport_ImportModuleLevel in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#12 0x7f0a92c6077e ?? in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#13 0x7f0a92ca8192 PyObject_Call in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#14 0x7f0a92cf43b6 PyEval_CallObjectWithKeywords in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#15 0x7f0a92c40b31 PyEval_EvalFrameEx in ??:0
from object /opt/cruise-sysroot-1b2d6a0/usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0

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