[Webkit-unassigned] [Bug 154892] New: [GTK] Crash in WebKit::LayerTreeHostGtk::flushAndRenderLayers

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=154892

            Bug ID: 154892
           Summary: [GTK] Crash in
                    WebKit::LayerTreeHostGtk::flushAndRenderLayers
    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

Version-Release number of selected component:
webkitgtk4-2.10.0-1.fc23

Additional info:
reporter:       libreport-2.6.2
backtrace_rating: 4
cmdline:        /usr/libexec/webkit2gtk-4.0/WebKitWebProcess 28
crash_function: _g_log_abort
executable:     /usr/libexec/webkit2gtk-4.0/WebKitWebProcess
global_pid:     14038
kernel:         4.2.3-300.fc23.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 _g_log_abort at gmessages.c:324
 #10 dri2XcbSwapBuffers at dri2_glx.c:815
 #11 dri2SwapBuffers at dri2_glx.c:853
 #12 WebKit::LayerTreeHostGtk::flushAndRenderLayers at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:318
 #13 WebKit::LayerTreeHostGtk::layerFlushTimerFired at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:237
 #14 std::function<void ()>::operator()() const at /usr/include/c++/5.1.1/functional:2271
 #15 WTF::GMainLoopSource::voidCallback at /usr/src/debug/webkitgtk-2.10.0/Source/WTF/wtf/glib/GMainLoopSource.cpp:365
 #16 WTF::GMainLoopSource::voidSourceCallback at /usr/src/debug/webkitgtk-2.10.0/Source/WTF/wtf/glib/GMainLoopSource.cpp:456
 #21 WTF::RunLoop::run at /usr/src/debug/webkitgtk-2.10.0/Source/WTF/wtf/glib/RunLoopGLib.cpp:67
 #22 WebKit::ChildProcessMain<WebKit::WebProcess, WebKit::WebProcessMain> at /usr/src/debug/webkitgtk-2.10.0/Source/WebKit2/Shared/unix/ChildProcessMain.h:61

Another user reports:

"""I was refered to this bug by abrt. 

I had a youtube video playing and I detached its tab to make a new browser window, and when it started reloading the webpage the web view crashed."""

Indeed, I can make the web process crash 100% by dragging a tab out of Epiphany, creating a new window, when that tab is in accelerated compositing mode.

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