[Webkit-unassigned] [Bug 56073] New: REGRESSION(80478?): assertion failure m_suspended in WebCore::SuspendableTimer::resume() loading engadget.com and other sites

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=56073

           Summary: REGRESSION(80478?): assertion failure m_suspended in
                    WebCore::SuspendableTimer::resume() loading
                    engadget.com and other sites
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://www.engadget.com
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: alice.liu at apple.com
                CC: yong.li.webkit at gmail.com


reproducibly hitting this assertion failure loading engadget.com, using WebKit2. Doesn't reproduce in MiniBrowser, though.  other sites are reproducing as well, like apple.com

1) use a WebKit2 browser window
2) load engadget.com

ASSERTION FAILED: m_suspended
/Volumes/Data/aliu/SourceGit/OpenSource/Source/WebCore/page/SuspendableTimer.cpp(76) : virtual void WebCore::SuspendableTimer::resume()
1   WebCore::SuspendableTimer::resume()
2   WebCore::ScriptExecutionContext::resumeActiveDOMObjects()
3   WebCore::Document::resumeScheduledTasks()
4   WebCore::FrameLoader::setDefersLoading(bool)
5   WebCore::Page::setDefersLoading(bool)
6   WebKit::WebPage::setDefersLoading(bool)
7   WKBundlePageSetDefersLoading

the regression range is 80473 (working) to 80494 (asserts).  

suspicious check-ins: http://trac.webkit.org/changeset/80478

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