[Webkit-unassigned] [Bug 240325] New: REGRESSION (r293931): [ iOS Debug ][ macOS Debug wk2 ] ASSERTION FAILED: m_requestCount > -1

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=240325

            Bug ID: 240325
           Summary: REGRESSION (r293931): [ iOS Debug ][ macOS Debug wk2 ]
                    ASSERTION FAILED: m_requestCount > -1
           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:
REGRESSION (r293931): [ iOS Debug ][ macOS Debug wk2 ] imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-move-into-script-disabled-iframe.html is a flaky crash
imported/w3c/web-platform-tests/html/semantics/embedded-content/the-img-element/image-loading-lazy-move-into-script-disabled-iframe.html

The first failure that I saw on the dashboard was 5/6/2022 at r293933.  r293931 modified ContentFilterUnblockHandlerCocoa, so that possibly introduced the flakiness crash. 

History:
https://results.webkit.org/?platform=ios&platform=mac&style=debug&limit=50000&suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fhtml%2Fsemantics%2Fembedded-content%2Fthe-img-element%2Fimage-loading-lazy-move-into-script-disabled-iframe.html

Crash Log: 
ERROR: Unhandled web process message 'WebPage_UpdateCurrentModifierState' (destination: 747 pid: 9332)
/Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-Build/build/Source/WebKit/WebProcess/WebProcess.cpp(952) : virtual void WebKit::WebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
ERROR: Unhandled web process message 'WebPage_HardwareKeyboardAvailabilityChanged' (destination: 747 pid: 9332)
/Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-Build/build/Source/WebKit/WebProcess/WebProcess.cpp(952) : virtual void WebKit::WebProcess::didReceiveMessage(IPC::Connection &, IPC::Decoder &)
ASSERTION FAILED: m_requestCount > -1
./loader/cache/CachedResourceLoader.cpp(1514) : void WebCore::CachedResourceLoader::decrementRequestCount(const WebCore::CachedResource &)
1   0x215079b09 WTFCrash
2   0x23dd05d4b WTFCrashWithInfo(int, char const*, char const*, int)
3   0x2421e165d WebCore::CachedResourceLoader::decrementRequestCount(WebCore::CachedResource const&)
4   0x24214379c WebCore::SubresourceLoader::RequestCountTracker::~RequestCountTracker()
5   0x2421437c5 WebCore::SubresourceLoader::RequestCountTracker::~RequestCountTracker()

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