Some segfaults in combination with gunicorn, pydantic

[avilaton]

Hi,
We had been running django with gunicorn + gevent and started seeing a number of segfaults that caused 139 errors. This happened with django running inside a docker container with alpine and

• python 3.12.3
• greenlet 3.0.1
  but stopped happening with
• python 3.12.5
• greenlet 3.0.3
  we have no clue how and why, and have no way to reproduce it even if we did try a lot.
  Here is a screenshot of gdb showing the (potentially) relevant stacktrace, obtained from a coredump (based on work from @jazzido)
  

[avilaton]

Wow