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Title: gh-136186: Fix flaky tests in test_external_inspection by pablogsal · Pull Request #143110 · python/cpython · GitHub

Open Graph Title: gh-136186: Fix flaky tests in test_external_inspection by pablogsal · Pull Request #143110 · python/cpython

X Title: gh-136186: Fix flaky tests in test_external_inspection by pablogsal · Pull Request #143110 · python/cpython

Description: Several tests calling unwinder.get_stack_trace() were flaky because they used retry loops without exception handling. Transient failures like "Failed to parse initial frame in chain" that occur when sampling at an inopportune moment would immediately fail the test instead of being retried. The fix adds a _get_stack_trace_with_retry helper function and updates seven locations to use busy_retry with contextlib.suppress for OSError and RuntimeError, matching the existing pattern in _get_frames_with_retry. This allows transient failures to be silently retried while still timing out if the expected condition is never met. Issue: gh-136186

Open Graph Description: Several tests calling unwinder.get_stack_trace() were flaky because they used retry loops without exception handling. Transient failures like "Failed to parse initial frame in chain" that...

X Description: Several tests calling unwinder.get_stack_trace() were flaky because they used retry loops without exception handling. Transient failures like "Failed to parse initial frame in chain&qu...

Opengraph URL: https://github.com/python/cpython/pull/143110

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691c8dc Fix flaky tests in test_external_inspection pablogsal Dec 23, 2025 https://github.com/python/cpython/pull/143110/commits/691c8dcb53bbc23308cab5279f02f0b5fa68ff36
48cba1f Merge remote-tracking branch 'upstream/main' into gh-136186 pablogsal Dec 23, 2025 https://github.com/python/cpython/pull/143110/commits/48cba1f808316c0bc8c4d3cb4cbed73d25c187c6
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