[Webkit-unassigned] [Bug 106586] New: NodeRareData and NodeListsNodeData are never deleted

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106586

           Summary: NodeRareData and NodeListsNodeData are never deleted
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: darin at apple.com, koivisto at iki.fi,
                    esprehn at chromium.org, barraclough at apple.com,
                    ojan at chromium.org, morrita at google.com


Right now, we never delete NodeRareData and NodeListsNodeData once they’re created. This results in some pathological memory use when the script traverse the entire document using node.childNodes for example because we’ll end up creating childNodes on all nodes temporarily and that results in every node having NodeRareData and NodeListsNodeData.

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