[Webkit-unassigned] [Bug 104517] New: [CSSRegions] Assertion failure in Node::detach (!renderer || renderer->inRenderFlowThread())

Mon Dec 10 00:04:49 PST 2012

https://bugs.webkit.org/show_bug.cgi?id=104517

           Summary: [CSSRegions] Assertion failure in Node::detach
                    (!renderer || renderer->inRenderFlowThread())
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mihnea at adobe.com
            Blocks: 57312

Load the following HTML in a debug build:

<!doctype html>
<html>
    <head>
        <style>
            #article { -webkit-flow-into: flow; }
        </style>
    </head>
    <body>
        <div class="flowContent" id="article">
            <span>
                a <p>b</p> a
            </span>
        </div>
    </body>
</html>

After page is loaded, reload it and you will get an assertion with the following trace:

1   0x1085d482b WebCore::Node::detach()
2   0x10763227f WebCore::ContainerNode::detach()
3   0x107a52f00 WebCore::Element::detach()
4   0x107634b97 WebCore::ContainerNode::detachChildren()
5   0x107632288 WebCore::ContainerNode::detach()
6   0x10784b57d WebCore::Document::detach()
7   0x10784b8c3 WebCore::Document::prepareForDestruction()
8   0x107b5bce6 WebCore::Frame::setView(WTF::PassRefPtr<WebCore::FrameView>)
9   0x107b5e748 WebCore::Frame::createView(WebCore::IntSize const&, WebCore::Color const&, bool, WebCore::IntSize const&, WebCore::IntRect const&, bool, WebCore::ScrollbarMode, bool, WebCore::ScrollbarMode, bool)
10  0x105336fa7 WebKit::WebFrameLoaderClient::transitionToCommittedForNewPage()
11  0x107b716bd WebCore::FrameLoader::transitionToCommitted(WTF::PassRefPtr<WebCore::CachedPage>)
12  0x107b70afc WebCore::FrameLoader::commitProvisionalLoad()
13  0x10789bb9c WebCore::DocumentLoader::commitIfReady()
14  0x10789c1bc WebCore::DocumentLoader::commitLoad(char const*, int)
15  0x10789c73b WebCore::DocumentLoader::receivedData(char const*, int)
16  0x108522167 WebCore::MainResourceLoader::addData(char const*, int, bool)
17  0x108997b0c WebCore::ResourceLoader::didReceiveData(char const*, int, long long, bool)
18  0x1085238da WebCore::MainResourceLoader::didReceiveData(char const*, int, long long, bool)
19  0x10899843f WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char const*, int, int)
20  0x108994daa -[WebCoreResourceHandleAsDelegate connection:didReceiveData:lengthReceived:]
21  0x7fff871f4f58 __65-[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]_block_invoke_0
22  0x7fff871f4e9c -[NSURLConnectionInternal _withConnectionAndDelegate:onlyActive:]
23  0x7fff871f4d98 -[NSURLConnectionInternal _withActiveConnectionAndDelegate:]
24  0x7fff871f792b _NSURLConnectionDidReceiveData_LengthReceived
25  0x7fff8c3816c4 ___delegate_didReceiveDataArray_block_invoke_0
26  0x7fff8c3743ca ___withDelegateAsync_block_invoke_0
27  0x7fff8c40456a __block_global_1
28  0x7fff87caa724 CFArrayApplyFunction
29  0x7fff8c365554 RunloopBlockContext::perform()
30  0x7fff8c36542b MultiplexerSource::perform()
31  0x7fff87c8c101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__

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