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WIP memmap multithreaded segfault #29157

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@crusaderky crusaderky commented Jun 9, 2025

Reproduces #29126
This segfaults instantly for me on 3.13t

pixi run test-nogil -v -- -k TestMemmap

pixi from https://github.com/rgommers/pixi-dev-scipystack

[EDIT] looks like it segfaults with the GIL on too!

@crusaderky crusaderky changed the title WIP memmap nogil segfault WIP memmap multithreaded segfault Jun 9, 2025
@ngoldbaum
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Thanks! I'll try to take a look at this today.

@charris charris added the 09 - Backport-Candidate PRs tagged should be backported label Jun 9, 2025
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