Bug 168576 – [GTK] Crash in WebKit::WebFullScreenManager::requestExitFullScreen

• Status: REOPENED
• Component: WebKitGTK

[Michael Catanzaro]

Crash in WebKit::WebFullScreenManager::requestExitFullScreen:

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 WebKit::WebFullScreenManager::requestExitFullScreen at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/WebProcess/FullScreen/WebFullScreenManager.cpp:149
 #1 IPC::callMemberFunctionImpl<WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)(), std::tuple<>>(WebKit::WebFullScreenManager*, void (WebKit::WebFullScreenManager::*)(), std::tuple<>&&, std::integer_sequence<unsigned long>) at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/HandleMessage.h:13
 #2 IPC::callMemberFunction<WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)(), std::tuple<>, std::integer_sequence<unsigned long> >(std::tuple<>&&, WebKit::WebFullScreenManager*, void (WebKit::WebFullScreenManager::*)()) at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/HandleMessage.h:19
 #3 IPC::handleMessage<Messages::WebFullScreenManager::RequestExitFullScreen, WebKit::WebFullScreenManager, void (WebKit::WebFullScreenManager::*)()> at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/HandleMessage.h:99
 #4 WebKit::WebFullScreenManager::didReceiveWebFullScreenManagerMessage at /usr/src/debug/webkitgtk-2.14.3/x86_64-redhat-linux-gnu/DerivedSources/WebKit2/WebFullScreenManagerMessageReceiver.cpp:40
 #5 IPC::MessageReceiverMap::dispatchMessage at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/MessageReceiverMap.cpp:123
 #6 WebKit::WebProcess::didReceiveMessage at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/WebProcess/WebProcess.cpp:649
 #7 IPC::Connection::dispatchMessage at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/Connection.cpp:858
 #8 IPC::Connection::dispatchOneMessage at /usr/src/debug/webkitgtk-2.14.3/Source/WebKit2/Platform/IPC/Connection.cpp:889
 #9 WTF::Function<void ()>::operator()() const at /usr/src/debug/webkitgtk-2.14.3/Source/WTF/wtf/Function.h:50

Full backtrace available in the downstream bug.

[Cédric Bellegarde]

Created attachment 334692 [details]
Full backtrace

Got this bug too

[Philippe Normand]

What are the steps to reproduce this issue? I suppose it's happening when exiting from fullscreen in youtube?

[Cédric Bellegarde]

Yes, was on youtube with MSE activated. Will search for a way to reproduce.

[Philippe Normand]

Here it works well with webkitgtk 2.19.91 in Ephy TP.

[Philippe Normand]

And also with WebKit ToT and MSE enabled in MiniBrowser.

[Michael Catanzaro]

I don't think you can expect a reproducer for a crash like this. Most of our crashes are not reproducible.

[Philippe Normand]

Closing then :)

[Michael Catanzaro]

We have two high-quality backtraces, one taken with 2.19.91, so we know this is still broken. I think it's great that we have a good bug report for a crash that is difficult to reproduce; that's the only way we can fix these issues. Reopening.