tadeja opened a new issue, #49930: URL: https://github.com/apache/arrow/issues/49930
### Describe the bug, including details regarding any error messages, version, and platform. The MINGW64 and CLANG64 MinGW jobs in `.github/workflows/cpp.yml` have failed every run since 2026 April 30 - first failure on main: https://github.com/apache/arrow/actions/runs/25213414021/job/73928546151#step:12:2644 ```Errors while running CTest The following tests FAILED: 41 - arrow-async-utility-test (Exit code 0xc0000374) arrow-tests unittest 62 - arrow-dataset-dataset-writer-test (SEGFAULT) arrow_dataset unittest 65 - arrow-dataset-file-test (Failed) arrow_dataset unittest Error: Process completed with exit code 8. ``` Recent failure 2026 May 05 - https://github.com/apache/arrow/actions/runs/25379694834/job/74424280352#step:12:2468 ``` The following tests FAILED: 41 - arrow-async-utility-test (Exit code 0xc0000374) arrow-tests unittest 44 - arrow-threading-utility-test (Timeout) arrow-tests unittest 62 - arrow-dataset-dataset-writer-test (Failed) arrow_dataset unittest 65 - arrow-dataset-file-test (Failed) arrow_dataset unittest 76 - arrow-s3fs-test (Failed) arrow-tests filesystem unittest Error: Process completed with exit code 8. ``` Likely triggered by two MSYS2 updates: 1. MINGW64: `gcc 15.2 -> 16.1` probably made the `thread_local` race in `ThreadPool` (#49272) crash now on every run. Expected fix: #49462. 2. MINGW64 + CLANG64: `aws-sdk-cpp 1.11.479 -> 1.11.801` stopped sending `Content-Md5` on `DeleteObjects`; the bundled MinIO (`RELEASE.2024-09-13`) still requires it. Fix: bump bundled MinIO, or configure the SDK to keep sending MD5 (?). Draft PR with a very temporary workaround (pin the packages to last known good versions) : ________ This issue tracks reverting to current upstream MSYS2 packages once - #49462 is merged and - the aws-sdk-cpp / MinIO incompatibility is resolved. ### Component(s) Continuous Integration, C++ -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
