Fix deadlock in test with free threading #5973
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Importing "widget_module" re-enables the GIL. In current versions of CPython, this requires pausing all threads attached to all interpreters. The spinning on sync/num without a py::gil_scoped_release causes occasional deadlocks.
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Windows jobs have been failing to start across multiple repos today on GHA. Don't think it's related. |
henryiii
approved these changes
Jan 27, 2026
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Description
Importing "widget_module" re-enables the GIL. In current versions of CPython, this requires pausing all threads attached to all interpreters. The spinning on sync/num without a py::gil_scoped_release causes occasional deadlocks.