[Webkit-unassigned] [Bug 156267] New: [Gtk] [Wayland] JavaScriptCore calls X11 code on Wayland and crashes

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=156267

            Bug ID: 156267
           Summary: [Gtk] [Wayland] JavaScriptCore calls X11 code on
                    Wayland and crashes
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: georges.stavracas at gmail.com
                CC: bugs-noreply at webkitgtk.org

When running Epiphany 3.20 backed by WebKit2Gtk 2.12.0-1 in Arch Linux, it crashes with a certain frequency because it calls X11 code. Some websites where the crash occurs:
 - Slack (only when logged in)
 - UOL: www.uol.com.br

Looks like the JavaScriptCore component is the one to blame here.

A not-so-useful stacktrace:

Thread 1 (Thread 0x7ffff7f0e980 (LWP 18930)):
#0  0x00007ffff7ad90c9 in _XSend () from /usr/lib/libX11.so.6
#1  0x00007ffff7ad94d5 in _XFlush () from /usr/lib/libX11.so.6
#2  0x00007ffff7adbfa5 in _XGetRequest () from /usr/lib/libX11.so.6
#3  0x00007ffff7ac0225 in _XGetWindowAttributes () from /usr/lib/libX11.so.6
#4  0x00007ffff7ac0421 in XGetWindowAttributes () from /usr/lib/libX11.so.6
#5  0x00007ffff26ee864 in ?? () from /usr/lib/libgtk-3.so.0
#6  0x00007ffff0e5d1d4 in ?? () from /usr/lib/libgobject-2.0.so.0
#7  0x00007ffff0e779d6 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#8  0x00007ffff0e780bf in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#9  0x00007ffff26b8b4e in gtk_widget_realize () from /usr/lib/libgtk-3.so.0
#10 0x00007ffff26bc178 in gtk_widget_set_parent () from /usr/lib/libgtk-3.so.0
#11 0x00007ffff505dc24 in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#12 0x00007ffff0e600a7 in g_cclosure_marshal_VOID__OBJECTv () from /usr/lib/libgobject-2.0.so.0
#13 0x00007ffff0e5d1d4 in ?? () from /usr/lib/libgobject-2.0.so.0
#14 0x00007ffff0e779d6 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0
#15 0x00007ffff0e780bf in g_signal_emit () from /usr/lib/libgobject-2.0.so.0
#16 0x00007ffff24a4ce5 in gtk_container_add () from /usr/lib/libgtk-3.so.0
#17 0x00007ffff507f38c in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#18 0x00007ffff50b0ce4 in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#19 0x00007ffff4df0f61 in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#20 0x00007ffff4eae7db in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#21 0x00007ffff4dece7b in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#22 0x00007ffff4decf6d in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#23 0x00007ffff4ded933 in ?? () from /usr/lib/libwebkit2gtk-4.0.so.37
#24 0x00007ffff4712fbf in WTF::RunLoop::performWork() () from /usr/lib/libjavascriptcoregtk-4.0.so.18
#25 0x00007ffff4743649 in ?? () from /usr/lib/libjavascriptcoregtk-4.0.so.18
#26 0x00007ffff0b86dba in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0x00007ffff0b87160 in ?? () from /usr/lib/libglib-2.0.so.0
#28 0x00007ffff0b8720c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0x00007ffff114cafd in g_application_run () from /usr/lib/libgio-2.0.so.0
#30 0x0000000000430396 in main ()

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