On Sat, Oct 5, 2019 at 5:38 AM Geoff Bache <geoff.ba...@gmail.com> wrote: > > Hi all, > > We are running Python embedded in our C++ product and are now experiencing > crashes (access violation reading 0xffffffffff on Windows) in the Python > garbage collector. > > We got this on Python 3.6.4 originally, but I can reproduce it with both > Python 3.6.8 and Python 3.7.4. > > The chances of producing a minimal example that reproduces it reliably are > currently small I would say. All attempts to simplify the set up seem to > cause the problem to go away. > Indeed I can only reproduce it by sending a fairly large amount of data 2 > or 3 times to our server - sending either half of the data does not > reproduce it.
Have you tried to reproduce the issue outside of your application? Even if it means creating a gigantic Python script with a whopping triple-quoted string for the input data, it'd be helpful to try this. If you CAN repro the problem, it'd be way easier to diagnose (since we don't need your code, just your test case); and if you CAN'T, it may mean an issue with the embedding aspects. What's your definition of "fairly large" here? How many kilobytes/megabytes/gigabytes, and how deeply nested is the JSON object? ChrisA -- https://mail.python.org/mailman/listinfo/python-list