[Webkit-unassigned] [Bug 19723] New: REGRESSION(r34648): Some SVG tests crash when running under --threaded

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=19723

           Summary: REGRESSION(r34648): Some SVG tests crash when running
                    under --threaded
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: SVG
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ap at webkit.org


In <http://trac.webkit.org/changeset/34648>, painting was added to
RenderSVGInlineText::destroy(). During document destruction, rendering
structures are not kept in consistent state, and painting results in access to
freed memory (possibly overwritten by a background thread).

I have a fix that wraps painting in if (!documentBeingDestroyed()), but given
that no other destroy() call paints itself, it might be that the original bug
could/should be fixed in some different manner.


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