[Webkit-unassigned] [Bug 191285] New: [WinCairo] run-javascriptcore-tests does not run to completion in Release mode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=191285

            Bug ID: 191285
           Summary: [WinCairo] run-javascriptcore-tests does not run to
                    completion in Release mode
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Windows 10
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ross.kirsling at sony.com
                CC: lforschler at apple.com

Remaining work after bug 189880:
WinCairo JSC stress tests are now able to run to completion in Debug mode, but we still end up with hanging subprocesses in Release mode.

Notes:
- Repro rate seems to be 100% when running the full suite, but which tests end up stuck seems random. In particular, these are not failing tests.
- We may well manage to *start* running every test, but then we just sit at the end forever since some number of subprocesses will never terminate.
- Running a subset of tests with --filter is generally stable, and it seems that even --quick usually terminates successfully.

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