<html>
    <head>
      <base href="https://bugs.webkit.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - [GTK] gdk_x_error() and WebKitWebProcess crash"
   href="https://bugs.webkit.org/show_bug.cgi?id=156311">156311</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[GTK] gdk_x_error() and WebKitWebProcess crash
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>WebKit
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>WebKit Nightly Build
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Unspecified
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>Normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P2
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>WebKit Gtk
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>webkit-unassigned&#64;lists.webkit.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>jdiggs&#64;igalia.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>bugs-noreply&#64;webkitgtk.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=275819" name="attach_275819" title="backtrace">attachment 275819</a> <a href="attachment.cgi?id=275819&amp;action=edit" title="backtrace">[details]</a></span>
backtrace

Steps to reproduce:
1. Launch minibrowser
2. Load <a href="https://blogs.gnome.org/mcatanzaro/">https://blogs.gnome.org/mcatanzaro/</a>

Expected results: WebKitWebProcess would not crash

Actual results: WebKitWebProcess crashes (for me) 100% of the time:

(WebKitWebProcess:19243): Gdk-ERROR **: The program 'WebKitWebProcess' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadValue (integer parameter out of range for operation)'.
  (Details: serial 177 error_code 2 request_code 154 (GLX) minor_code 24)
  (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.)

Environment: Fedora 23, GNOME 3.18.x, X11, unmodified WebKitGtk+ jhbuild environment (including jhbuild-built dependencies).

I've attached a backtrace from debug build after doing what the error suggested.</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>