[Webkit-unassigned] [Bug 64551] New: REGRESSION (r91003): 4 svg/dynamic-updates tests failing assertions in WebCore::createSharedCursor on Windows XP Debug (Tests)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=64551

           Summary: REGRESSION (r91003): 4 svg/dynamic-updates tests
                    failing assertions in WebCore::createSharedCursor on
                    Windows XP Debug (Tests)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://build.webkit.org/results/Windows%20XP%20Debug%2
                    0(Tests)/r91003%20(30671)/results.html
        OS/Version: Windows XP
            Status: NEW
          Keywords: LayoutTestFailure, MakingBotsRed, Regression
          Severity: Normal
          Priority: P2
         Component: Platform
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aroben at apple.com
                CC: fishd at chromium.org, japhet at chromium.org


The following tests started failing assertions in WebCore::createSharedCursor on Windows XP Debug (Tests) in r91003 <http://trac.webkit.org/changeset/91003>:

    svg/dynamic-updates/SVGCursorElement-dom-x-attr.html
    svg/dynamic-updates/SVGCursorElement-dom-y-attr.html
    svg/dynamic-updates/SVGCursorElement-svgdom-x-prop.html
    svg/dynamic-updates/SVGCursorElement-svgdom-y-prop.html

http://build.webkit.org/results/Windows%20XP%20Debug%20(Tests)/r91002%20(30670)/results.html passed
http://build.webkit.org/results/Windows%20XP%20Debug%20(Tests)/r91003%20(30671)/results.html failed

Here's the asserting code:

FAULTING_SOURCE_CODE:  
    52:     HDC dc = GetDC(0);
    53:     HDC workingDC = CreateCompatibleDC(dc);
    54:     if (doAlpha) {
    55:         OwnPtr<HBITMAP> hCursor = adoptPtr(CreateDIBSection(dc, (BITMAPINFO *)&cursorImage, DIB_RGB_COLORS, 0, 0, 0));
>   56:         ASSERT(hCursor);
    57: 
    58:         img->getHBITMAP(hCursor.get()); 
    59:         HBITMAP hOldBitmap = (HBITMAP)SelectObject(workingDC, hCursor.get());
    60:         SetBkMode(workingDC, TRANSPARENT);
    61:         SelectObject(workingDC, hOldBitmap);

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