An Evince browser plugin crash. Full backtrace downstream as usual. Truncated backtrace: Thread no. 1 (10 frames) #0 gdk_window_has_impl at gdkwindow.c:626 #1 _gdk_window_has_impl at gdkwindow.c:627 #2 gdk_x11_window_get_xid at gdkwindow-x11.c:5542 #3 WebKit::NetscapePluginX11::visibilityDidChange at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/WebProcess/Plugins/Netscape/x11/NetscapePluginX11.cpp:267 #4 WebKit::PluginControllerProxy::visibilityDidChange at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/PluginProcess/PluginControllerProxy.cpp:437 #5 IPC::callMemberFunctionImpl<WebKit::PluginControllerProxy, void (WebKit::PluginControllerProxy::*)(bool), std::tuple<bool>, 0ul>(WebKit::PluginControllerProxy*, void (WebKit::PluginControllerProxy::*)(bool), std::tuple<bool>&&, std::index_sequence<0ul>) at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/Platform/IPC/HandleMessage.h:16 #6 IPC::callMemberFunction<WebKit::PluginControllerProxy, void (WebKit::PluginControllerProxy::*)(bool), std::tuple<bool>, std::make_index_sequence<1ul> >(std::tuple<bool>&&, WebKit::PluginControllerProxy*, void (WebKit::PluginControllerProxy::*)(bool)) at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/Platform/IPC/HandleMessage.h:22 #7 IPC::handleMessage<Messages::PluginControllerProxy::MutedStateChanged, WebKit::PluginControllerProxy, void (WebKit::PluginControllerProxy::*)(bool)> at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/Platform/IPC/HandleMessage.h:92 #8 WebKit::PluginControllerProxy::didReceivePluginControllerProxyMessage at /usr/src/debug/webkitgtk-2.12.3/x86_64-redhat-linux-gnu/DerivedSources/WebKit2/PluginControllerProxyMessageReceiver.cpp:53 #9 WebKit::WebProcessConnection::didReceiveMessage at /usr/src/debug/webkitgtk-2.12.3/Source/WebKit2/PluginProcess/WebProcessConnection.cpp:141
Here's a second one: https://bugzilla.gnome.org/show_bug.cgi?id=762838 That one is surely an evince problem though.
For some reason the plug is not embedded when NetscapePluginX11::visibilityDidChange is called. Do you remember if you were doing any tab drag an drop when this happened? Or was it after closing the tab?
I don't remember, unfortunately I originally reported this in June and it just didn't make it upstream.
Created attachment 293430 [details] Speculative fix
This patch modifies one of the wasm.json files. Please ensure that any changes in one have been mirrored to the other. You can find the wasm.json files at "Source/JavaScriptCore/wasm/wasm.json" and "JSTests/wasm/wasm.json".
Committed r208272: <http://trac.webkit.org/changeset/208272>