Bug 249931

Created attachment 464238 [details] Small web page that demonstrates the crash reported I'm hitting a crash when entering text into an input field of a webpage using bootstrap css and providing a placeholder field. Software and versions: OS: Ubuntu 22.04 WPE Webkit: 2.38.2 LIB WPE: 1.14.0 FDO: 1.14.0 Crash text reported: Cog-Core-Message: 04:04:22.523: <http://localhost:8000/configure.html> Load started. Cog-Core-Message: 04:04:22.531: <http://localhost:8000/configure.html> Loading... Cog-Core-Message: 04:04:23.068: <http://localhost:8000/configure.html> Loaded successfully. ASSERTION FAILED: layer.backing()->viewportAnchorLayer() /home/user/compositor2/compositor2/thirdparty/webkit/wpewebkit-2.38.2/Source/WebCore/rendering/RenderLayerCompositor.cpp(4794) : WebCore::ScrollingNodeID WebCore::RenderLayerCompositor::updateScrollingNodeForViewportConstrainedRole(WebCore::RenderLayer&, WebCore::ScrollingTreeState&, WTF::OptionSet<WebCore::RenderLayerCompositor::ScrollingNodeChangeFlags>) (cog:754190): Cog-Core-WARNING **: 04:04:28.174: <http://localhost:8000/configure.html> Crash!: The renderer process crashed. Reloading the page may fix intermittent failures. Note: Removing the "placeholder" field seems to prevent the crash from happening. How to reproduce: To demonstrate the crash unpack the attached tarball, go into the localhost directory and serve the pages using python: $ python -m http.server Start weston: $ weston & Run cog: $ cog -P fdo http://localhost:8000/configure.html When the web-page loads, select "static ip". Enter any text into the ip address box and hit tab to goto the next field. Cog should crash at this point in time.