[Webkit-unassigned] [Bug 244607] New: REGRESSION (253350 at main): [ macOS wk1 Debug ] fast/loader/opaque-base-url.html is a consistent crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244607

            Bug ID: 244607
           Summary: REGRESSION (253350 at main): [ macOS wk1 Debug ]
                    fast/loader/opaque-base-url.html is a consistent crash
           Product: WebKit
           Version: WebKit Nightly 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

Description:
fast/loader/opaque-base-url.html

The test was consistently passing until at 253350 at main when it began to crash consistently.

REPRODUCTION STEPS
I can reproduce this on 253350 at main but cannot reproduce it on 253349 at main or earlier.

Command: 
run-webkit-tests --debug -1 --exit-after-n-failures 1 --exit-after-n-crashes-or-timeouts 1 --iterations 50 -f --no-retry fast/loader/opaque-base-url.html

Result: 
Regressions: Unexpected crashes (1)
  fast/loader/opaque-base-url.html [ Crash ]

History:
https://results.webkit.org/?suite=layout-tests&test=fast%2Floader%2Fopaque-base-url.html&platform=mac&style=debug&flavor=wk1&limit=50000

Crash Log:
Thread 0 Crashed::   Dispatch queue: com.apple.main-thread
0   com.apple.JavaScriptCore                   0x113ae544e    WTFCrash
1   DumpRenderTree                             0x10fb8e1aa    WTFCrashWithInfo(int, char const*, char const*, int)
2   DumpRenderTree                             0x10fc1ed28    -[ResourceLoadDelegate webView:identifierForInitialRequest:fromDataSource:]
3   com.apple.WebKitLegacy                     0x11e4d458a    objc_object* wtfCallIMP<objc_object*, WebView*, objc_object*, objc_object*>(void (*)(), objc_object*, objc_selector*, WebView*, objc_object*, objc_object*)
4   com.apple.WebKitLegacy                     0x11e4d28d4    CallDelegate(void (*)(), WebView*, objc_object*, objc_selector*, objc_object*, objc_object*)
5   com.apple.WebKitLegacy                     0x11e4d2d34    CallResourceLoadDelegate(void (*)(), WebView*, objc_selector*, objc_object*, objc_object*)
6   com.apple.WebKitLegacy                     0x11e3d1168    WebFrameLoaderClient::assignIdentifierToInitialRequest(WTF::ObjectIdentifier<WebCore::ResourceLoader>, WebCore::DocumentLoader*, WebCore::ResourceRequest const&)
7   com.apple.WebCore                          0x19ec5f350    WebCore::ResourceLoadNotifier::assignIdentifierToInitialRequest(WTF::ObjectIdentifier<WebCore::ResourceLoader>, WebCore::DocumentLoader*, WebCore::ResourceRequest const&)
8   com.apple.WebCore                          0x19ec66218    WebCore::ResourceLoader::willSendRequestInternal(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&)
9   com.apple.WebCore                          0x19ec82280    WebCore::SubresourceLoader::willSendRequestInternal(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&)::$_3::operator()(WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&, WebCore::ResourceRequest&&)
10  com.apple.WebCore                          0x19ec807f6    WebCore::SubresourceLoader::willSendRequestInternal(WebCore::ResourceRequest&&, WebCore::ResourceResponse const&, WTF::CompletionHandler<void (WebCore::ResourceRequest&&)>&&)

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