This bug was filed from the Socorro interface and is report bp-bc3d1740-f581-4e4d-a9bb-912bd2130909. =========================================================== Combined signatures put this at #14 Frame Module Signature Source 0 gkmedias.dll moz_cairo_win32_surface_create_with_d3dsurface9 gfx/cairo/cairo/src/cairo-win32-surface.c 1 xul.dll gfxWindowsSurface::gfxWindowsSurface(IDirect3DSurface9 *,unsigned int) gfx/thebes/gfxWindowsSurface.cpp 2 xul.dll mozilla::layers::OpaqueRenderer::Begin(mozilla::layers::LayerD3D9 *) gfx/layers/d3d9/ThebesLayerD3D9.cpp 3 xul.dll mozilla::layers::ThebesLayerD3D9::DrawRegion(nsIntRegion &,mozilla::layers::Layer::SurfaceMode,nsTArray<mozilla::layers::ReadbackProcessor::Update> const &) gfx/layers/d3d9/ThebesLayerD3D9.cpp 4 d3d9.dll SSEFloat16Conversion8

Do you have steps?

I don't have steps, just getting this on file to begin investigations, as it it nearing topcrash status.

Ok, this is coming from bug 907544 so we can back it out if we can't find the cause, but lets give it a bit of time to find steps.

Comment on attachment 803772 [details] [diff] [review] Do the needful Review of attachment 803772 [details] [diff] [review]: ----------------------------------------------------------------- This is an improvement but we're still changing the behavior. If GetDC returns null previously we would return a null gfxWindowSurface in OpaqueRenderer::Begin() but now we will return an error surface: https://bugzilla.mozilla.org/page.cgi?id=splinter.html&bug=907544&attachment=799756 So we might change the crash to an empty rendering. Perhaps we should restore get GetDC failures yield an empty surface from OpaqueRenderer::Begin().

Comment on attachment 803772 [details] [diff] [review] Do the needful Per discussion, close but not quite.

Issue is resolved - clearing old keywords - qa-wanted clean-up