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Mon Sep 28 12:00:37 PDT 2015 

[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263047
Reparenting the WebView...
Old parent: 0xb9a660
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 27263047
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 0
New parent: 0xb9a7b0
Reparenting the WebView...
Old parent: 0xb9a7b0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263053
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 27263053
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 0
New parent: 0xb9a660
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263059
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:329] compositeLayersToContext :: context ID BEFORE makeContextCurrent: 27263059
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:334] compositeLayersToContext :: context ID AFTER makeContextCurrent (Success): 27263059

(WebKitWebProcess:29232): 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 203 error_code 9 request_code 14 (core protocol) minor_code 0)
  (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.)

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--1447342501.Ea7f7Aa21.23899
Date: Thu, 12 Nov 2015 07:35:01 -0800
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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] Web Process crashes on reparenting a WebView with AC mode on"
   href="https://bugs.webkit.org/show_bug.cgi?id=151139#c10">Comment # 10</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] Web Process crashes on reparenting a WebView with AC mode on"
   href="https://bugs.webkit.org/show_bug.cgi?id=151139">bug 151139</a>
              from <span class="vcard"><a class="email" href="mailto:mario&#64;webkit.org" title="Mario Sanchez Prada &lt;mario&#64;webkit.org&gt;"> <span class="fn">Mario Sanchez Prada</span></a>
</span></b>
        <pre>From the UI perspective, this what I get printed in the UI process after putting a few printf's around &quot;m_layerTreeContext.contextID = handle&quot; in LayerTreeHostGtk::setNativeSurfaceHandleForCompositing, and around the call to makeContextCurrent() (which always succeeds) in LayerTreeHostGtk::compositeLayersToContext:

[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263047
Reparenting the WebView...
Old parent: 0xb9a660
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 27263047
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 0
New parent: 0xb9a7b0
Reparenting the WebView...
Old parent: 0xb9a7b0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263053
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 27263053
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 0
New parent: 0xb9a660
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:425] setNativeSurfaceHandleForCompositing :: old handle: 0
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:429] setNativeSurfaceHandleForCompositing :: new handle: 27263059
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:329] compositeLayersToContext :: context ID BEFORE makeContextCurrent: 27263059
[../../Source/WebKit2/WebProcess/WebPage/gtk/LayerTreeHostGtk.cpp:334] compositeLayersToContext :: context ID AFTER makeContextCurrent (Success): 27263059

(WebKitWebProcess:29232): 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 203 error_code 9 request_code 14 (core protocol) minor_code 0)
  (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.)</pre>
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--1447342501.Ea7f7Aa21.23899--

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