[Webkit-unassigned] [Bug 6723] New: REGRESSION: Infinite mutual recursion while running dom/html/level2/html/HTMLCollection01.html

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=6723

           Summary: REGRESSION: Infinite mutual recursion while running
                    dom/html/level2/html/HTMLCollection01.html
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
        OS/Version: Mac OS X 10.4
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Tables
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: opendarwin.org at bdash.net.nz


At present the layout tests hang during dom/html/level2/html/.  Killing
DumpRenderTree reveals that dom/html/level2/html/HTMLCollection01.html is the
test causing the hang.  Running inside GDB reveals that there is some heavy
mutual recursion going on between RenderBlock::addChildToFlow and
RenderTableSection::addChild.  A look through recent commits suggests that
12298 may be relevant.  A complete from GDB is meaningless but a snippet will
give the general idea:

#14931 0x01226eb8 in WebCore::RenderBlock::addChildToFlow ()
#14932 0x0127875c in WebCore::RenderTableSection::addChild ()
#14933 0x01226eb8 in WebCore::RenderBlock::addChildToFlow ()
#14934 0x0127875c in WebCore::RenderTableSection::addChild ()
#14935 0x01226eb8 in WebCore::RenderBlock::addChildToFlow ()
#14936 0x0127875c in WebCore::RenderTableSection::addChild ()
#14937 0x01226eb8 in WebCore::RenderBlock::addChildToFlow ()
#14938 0x0127875c in WebCore::RenderTableSection::addChild ()
#14939 0x01226eb8 in WebCore::RenderBlock::addChildToFlow ()


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