[Webkit-unassigned] [Bug 240927] New: [ iOS Debug Big Sur Debug wk2 ] ASSERTION FAILED: WebCore::IDBTransaction::dispatchEvent(WebCore::Event&)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=240927

            Bug ID: 240927
           Summary: [ iOS Debug Big Sur Debug wk2 ] ASSERTION FAILED:
                    WebCore::IDBTransaction::dispatchEvent(WebCore::Event&
                    )
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rackler at apple.com

Created attachment 459770

  --> https://bugs.webkit.org/attachment.cgi?id=459770&action=review

Crash_Log-Mac

Description:
[ iOS Debug Big Sur Debug wk2 ] storage/indexeddb/request-with-null-open-db-request.html is a flaky crash
storage/indexeddb/request-with-null-open-db-request.html

The first failure that I saw on the dashboard for Big Sur was on 2/17/2022 r290034, but this does not appear relevant to causing this issue.  The first failure that I saw on the dashboard for iOS was on 4/7/2022 at r292541, but this does not appear relevant to causing this issue.   This test has been flaky for its entire history on the dashboard.

The test for Big Sure Debug x86_64 shows on the dashboard, but not on the Layout Test Results, but the bot shows stderr lines.  I gathered the crash log from the bot.

History:
https://results.webkit.org/?suite=layout-tests&test=storage%2Findexeddb%2Frequest-with-null-open-db-request.html&platform=ios&platform=mac&style=debug&version_name=Big%20Sur&version_name=iOS%2015&flavor=wk2&limit=50000

Crash Log:
Mac
CRASHING TEST: storage/indexeddb/request-with-null-open-db-request.html

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore            0x000000042d83b9ce WTFCrash + 14 (Assertions.cpp:322)
1   com.apple.WebCore                   0x00000004067d379b WTFCrashWithInfo(int, char const*, char const*, int) + 27 (Assertions.h:748)
2   com.apple.WebCore                   0x0000000408e9664b WebCore::IDBTransaction::dispatchEvent(WebCore::Event&) + 715 (IDBTransaction.cpp:630)
3   com.apple.WebCore                   0x000000040a1f37b9 WebCore::EventTarget::dispatchEventForBindings(WebCore::Event&) + 249 (EventTarget.cpp:238)
4   com.apple.WebCore                   0x00000004074c11e6 WebCore::jsEventTargetPrototypeFunction_dispatchEventBody(JSC::JSGlobalObject*, JSC::CallFrame*, WebCore::JSEventTargetWrapper*) + 710 (JSEventTarget.cpp:284)
5   com.apple.WebCore                   0x00000004074c0eee long long WebCore::IDLOperation<WebCore::JSEventTarget>::call<&(WebCore::jsEventTargetPrototypeFunction_dispatchEventBody(JSC::JSGlobalObject*, JSC::CallFrame*, WebCore::JSEventTargetWrapper*)), (WebCore::CastedThisErrorBehavior)0>(JSC::JSGlobalObject&, JSC::CallFrame&, char const*) + 622 (JSEventTargetCustom.h:78)

iOS
 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0  com.apple.JavaScriptCore            0x82cdc35ce        WTFCrash
1  com.apple.WebCore                   0x855c91538        WTFCrashWithInfo(int, char const*, char const*, int)
2  com.apple.WebCore                   0x8582389b6        WebCore::IDBTransaction::dispatchEvent(WebCore::Event&)
3  com.apple.WebCore                   0x859462230        WebCore::EventTarget::dispatchEventForBindings(WebCore::Event&)
4  com.apple.WebCore                   0x85694f0fe        WebCore::jsEventTargetPrototypeFunction_dispatchEventBody(JSC::JSGlobalObject*, JSC::CallFrame*, WebCore::JSEventTargetWrapper*)
5  com.apple.WebCore                   0x85694ee16        long long WebCore::IDLOperation<WebCore::JSEventTarget>::call<&(WebCore::jsEventTargetPrototypeFunction_dispatchEventBody(JSC::JSGlobalObject*, JSC::CallFrame*, WebCore::JSEventTargetWrapper*)), (WebCore::CastedThisErrorBehavior)0>(JSC::JSGlobalObject&, JSC::CallFrame&, char const*)

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