[issue37652] Multiprocessing shared_memory ValueError on race with ShareableList

[mental]

mental <m3nta1 at yahoo.com> added the comment:

I have been able to reproduce the issue.

I'm currently investigating to see what exactly inside the source of ShareableList is causing what appears to be miss synchronization.

Currently I think the issue is the documentation failing to mention that ShareableList does not perform atomic operations.

But I'm curious if a patch that adds some internal sync primitive is out of the question here?

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nosy: +mental

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37652>
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