Segmentation Fault on ONNX 1.1.2

I am using onnx 1.1.2 and Caffe2, and when I do the following, I get a segmentation fault:

from caffe2.python import core
import onnx

Swapping the order of the above imports doesn’t change the error. backtrace: https://gist.github.com/pooyadavoodi/53c6d0ce381f9a41e8fbd79bb555176c

I built onnx from branch rel-1.1.2 and it works. So the problem is only the pip package I think.

[bddppq]

This is not related to pytorch or caffe2 but the combination of an upstream issue in pybind11 https://github.com/pybind/pybind11/issues/1262 and the way onnx binary packages were built. We don’t have a way to fix a released version (pypi doesn’t allow resubmit another packages for a released version). Installing onnx via pip install --no-binary onnx onnx would force pip to use source package to fix this issue, and @raymondxyang is going to help us on updating the release pipeline (see discussions here https://github.com/onnx/onnx/pull/1183) so for future release this issue should go away.

[raymondxyang]

Newly published 1.3.0 was built with a newer gcc and has been out on pypi. I tested it with pytorch and seems the problem is gone. If there is any problem please report.