Crash with pypy 7.3.6

[justvanrossum]

I'm finding that pathops reliably crashes hard ("Segmentation fault (core dumped)" / "Process completed with exit code 139") when running under pypy 7.3.6, at least on Linux. This does not happen on 7.3.5. (Environment: GitHub actions.)

This could easily be a bug in pypy, but I have no way of debugging that :(

(I can't test locally on macOS as there are no macOS wheels for pypy pathops, and trying to build it locally never worked for me, so I'm afraid this is the extent of detail I can share at the moment.)

[justvanrossum]

In an attempt to reproduce, I reran a recent non-deplying run, but it still used pypy3.7-7.3.5 instead of the latest pypy3.7-7.3.6.

Not sure how this works. Would it make sense to make a dummy PR to trigger a fresh build?

Alternatively, I could make a test repository to try and reproduce the problem.

[justvanrossum]

I managed to reproduce the problem in a test repo:

• https://github.com/justvanrossum/pypy-pathops-crash/

Failing run:

• https://github.com/justvanrossum/pypy-pathops-crash/runs/3983485831?check_suite_focus=true

It doesn't appear to be a specific shape that causes the crash, it just happens after a while.

[justvanrossum]

I opened an issue for PyPy as well:

• https://foss.heptapod.net/pypy/pypy/-/issues/3581

[justvanrossum]

The upstream issue has been closed.

I verified that it no longer crashes: https://github.com/justvanrossum/pypy-pathops-crash/runs/7251678581?check_suite_focus=true