[Webkit-unassigned] [Bug 154777] New: [GTK] Crash in GLContext::createContextForWindow when running under X11

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=154777

            Bug ID: 154777
           Summary: [GTK] Crash in GLContext::createContextForWindow when
                    running under X11
    Classification: Unclassified
           Product: WebKit
           Version: Other
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org

I have a Fedora 23 bug report from a user whose web process crashes whenever entering accelerated compositing mode. Full backtrace, including X window system error, in the downstream bug:

https://bugzilla.redhat.com/show_bug.cgi?id=1311519

The crash occurs when running under X11 when built with Wayland support... that is, the default case, which we test all the time. No clue why it's only crashing for this one user.

Possibly unrelated, but Carlos Garcia noticed that's it's odd we use a wl_egl_window* as a GLX window handle ID. Can we really store an integer in a pointer with just a single reinterpret cast like this?

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