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reporting the stack limit of the main thread incorrectly. On platforms where pthread_getattr_np underreports the main thread's stack size, use RLIMIT_STACK for the main thread instead.
Yhg1s
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AA-Turner,
Eclips4,
corona10,
emmatyping,
erlend-aasland,
itamaro,
markshannon and
tomasr8
as code owners
October 13, 2026 21:31
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This is a more general fix than #159321, and incidentally also lets us have proper stack overflow protections on musl. |
symbols for the Py check.
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Adjust the use of pthread_getattr_np for stack size limit detection to avoid the problem on musl of it reporting the stack limit of the main thread incorrectly. On platforms where pthread_getattr_np underreports the main thread's stack size, use RLIMIT_STACK for the main thread instead. (Cross-compiles targeting musl will have to pass
ac_cv_unreliable_pthread_getattr_np=yesto configure.)