[Webkit-unassigned] [Bug 231831] New: [ macOS wk2 ] http/tests/xmlhttprequest/access-control-repeated-failed-preflight-crash.html is a flaky crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=231831

            Bug ID: 231831
           Summary: [ macOS wk2 ]
                    http/tests/xmlhttprequest/access-control-repeated-fail
                    ed-preflight-crash.html is a flaky crash
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Mac (Intel)
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ayumi_kojima at apple.com

http/tests/xmlhttprequest/access-control-repeated-failed-preflight-crash.html

Is a flaky crash on macOS wk2.

History: https://results.webkit.org/?suite=layout-tests&test=http%2Ftests%2Fxmlhttprequest%2Faccess-control-repeated-failed-preflight-crash.html

The test has been flaky on macOS-Catalina-Release-WK2-Tests-EWS since this build: https://ews-build.webkit.org/#/builders/59/builds/16794

Result page: https://build.webkit.org/results/Apple-BigSur-Release-AppleSilicon-WK2-Tests/r284224%20(4694)/results.html

Stderr:

2021-10-14 19:53:12.676 WebKitTestRunner[41676:115157200] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'This task has already been stopped'
*** First throw call stack:
(
        0   CoreFoundation                      0x000000018e01cc28 __exceptionPreprocess + 240
        1   libobjc.A.dylib                     0x000000018dd450a8 objc_exception_throw + 60
        2   CoreFoundation                      0x000000018e01ca74 +[NSException exceptionWithName:reason:userInfo:] + 0
        3   WebKit                              0x00000001048e23b0 -[WKURLSchemeTaskImpl didReceiveData:] + 124
        4   WebKit                              0x00000001049bb580 __66-[WKInspectorResourceURLSchemeHandler webView:startURLSchemeTask:]_block_invoke + 1020
        5   Foundation                          0x000000018ed26f00 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 24
        6   Foundation                          0x000000018ed26da8 -[NSBlockOperation main] + 104
        7   Foundation                          0x000000018ed26d38 __NSOPERATION_IS_INVOKING_MAIN__ + 24
        8   Foundation                          0x000000018ed25f78 -[NSOperation start] + 808
        9   Foundation                          0x000000018ed25c48 __NSOPERATIONQUEUE_IS_STARTING_AN_OPERATION__ + 24
        10  Foundation                          0x000000018ed25afc __NSOQSchedule_f + 184
        11  libdispatch.dylib                   0x000000018dcee128 _dispatch_call_block_and_release + 32
        12  libdispatch.dylib                   0x000000018dcefec0 _dispatch_client_callout + 20
        13  libdispatch.dylib                   0x000000018dd017b0 _dispatch_root_queue_drain + 688
        14  libdispatch.dylib                   0x000000018dd01e90 _dispatch_worker_thread2 + 112
        15  libsystem_pthread.dylib             0x000000018de9b860 _pthread_wqthread + 216
        16  libsystem_pthread.dylib             0x000000018de9a5d4 start_wqthread + 8
)
libc++abi: terminating with uncaught exception of type NSException

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