187268 2018-07-02 14:34:45 -0700 [GTK] Layout test compositing/backing/backing-store-attachment-outside-viewport.html is failing 2018-07-31 04:48:52 -0700 1 1 1 Unclassified WebKit WebKitGTK Other PC Linux NEW https://bugs.webkit.org/show_bug.cgi?id=187994 P2 Normal --- 1 mcatanzaro webkit-unassigned bugs-noreply cadubentzen calvaris magomez simon.fraser zan oldest_to_newest 1438635 0 mcatanzaro 2018-07-02 14:34:45 -0700 Layout test compositing/backing/backing-store-attachment-outside-viewport.html was added in r233268 "https://hackernoon.com/ uses lots of layer backing store" is failing for GTK with the following diff: --- /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/compositing/backing/backing-store-attachment-outside-viewport-expected.txt +++ /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/compositing/backing/backing-store-attachment-outside-viewport-actual.txt @@ -18,13 +18,13 @@ (position 8.00 1613.00) (bounds 600.00 600.00) (drawsContent 1) - (backingStoreAttached 0) + (backingStoreAttached 1) ) (GraphicsLayer (position 8.00 3213.00) (bounds 600.00 600.00) (drawsContent 1) - (backingStoreAttached 0) + (backingStoreAttached 1) ) ) ) I don't know anything, but I assume that means we are using memory to hold content that is not drawn, so perhaps this is of interest to the graphics folks. 1445023 1 simon.fraser 2018-07-25 08:27:11 -0700 The "backing store attached" logic is in GraphicsLayerCA. I don't know how to detach backing store on the other platforms.