Full backtrace downstream. Notable: msg = 0x55dfb73b3690 "The program 'WebKitWebProcess' received an X Window System error.\nThis probably reflects a bug in the program.\nThe error was 'BadDrawable (invalid Pixmap or Window parameter)'.\n (Details: serial 581 "... So the rest of this backtrace is surely irrelevant, but I'll post it anyway.... Truncated backtrace: Thread no. 1 (10 frames) #0 _g_log_abort at gmessages.c:316 #8 XGetGeometry at GetGeom.c:47 #9 WebCore::GLContextGLX::defaultFrameBufferSize at /usr/src/debug/webkitgtk-2.9.5/Source/WebCore/platform/graphics/glx/GLContextGLX.cpp:189 #10 WebKit::LayerTreeHostGtk::compositeLayersToContext at /usr/src/debug/webkitgtk-2.9.5/Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:285 #11 WebKit::LayerTreeHostGtk::flushAndRenderLayers at /usr/src/debug/webkitgtk-2.9.5/Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:318 #12 WebKit::LayerTreeHostGtk::layerFlushTimerFired at /usr/src/debug/webkitgtk-2.9.5/Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:237 #13 std::function<void ()>::operator()() const at /usr/include/c++/5.1.1/functional:2271 #14 WTF::GMainLoopSource::voidCallback at /usr/src/debug/webkitgtk-2.9.5/Source/WTF/wtf/glib/GMainLoopSource.cpp:365 #15 WTF::GMainLoopSource::voidSourceCallback at /usr/src/debug/webkitgtk-2.9.5/Source/WTF/wtf/glib/GMainLoopSource.cpp:456 #20 WTF::RunLoop::run at /usr/src/debug/webkitgtk-2.9.5/Source/WTF/wtf/glib/RunLoopGLib.cpp:67
I can reproduce this 100% with 2.10.4 by dragging a tab containing a YouTube video (does not need to be playing) to another window.
with 2.12.3-1 it seems to be the same, but I cannot reproduce it by will: (WebKitWebProcess:4593): Gdk-ERROR **: The program 'WebKitWebProcess' received an X Window System error. This probably reflects a bug in the program. The error was 'BadDrawable (invalid Pixmap or Window parameter)'. (Details: serial 31859 error_code 9 request_code 153 (DRI2) minor_code 7) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the GDK_SYNCHRONIZE environment variable to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.)
(In reply to comment #1) > I can reproduce this 100% with 2.10.4 by dragging a tab containing a YouTube > video (does not need to be playing) to another window. I think it crashes if you try to drag any tab if AC mode is in use.
Created attachment 288569 [details] BT from gdb I'm using WebKitGtk+ with my own JHBuild setting: https://github.com/tanty/jhbuild-epiphany/tree/wkgtk-devel MiniBrowser from WebKit 2.12.5 The compilation was done with CMake args: "-DPORT=GTK -DCMAKE_BUILD_TYPE=Debug -DDEVELOPER_MODE=ON -DCMAKE_C_FLAGS_DEBUG=-g1 -DCMAKE_CXX_FLAGS_DEBUG=-g1" When visiting several pages, eventually, WebKitWebProcess crashes. This bug is not reproducible in a predictable way. --- The action that triggered the crash was deattaching a tab from a window to create a new 1 tab window.
*** Bug 150717 has been marked as a duplicate of this bug. ***
I don't think I have any reports of this since 2.12, and the YouTube reproducer does not work anymore in 2.14.1. Also, Andres hasn't complained since 2.10.