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    <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] WebProcess from WebKitGtk+ 2.13.4 SIGSEGVs in _ZNKSt10unique_ptrIN3WTF7HashMapIiS_IN7WebCore15GlyphMetricsMapINS2_9FloatRectEE16GlyphMetricsPageESt14default_deleteIS6_EENS0_7IntHashIjEENS0_10HashTraitsIiEENSC_IS9_EEEES7_ISF_EE3getEv ()"
   href="https://bugs.webkit.org/show_bug.cgi?id=160401">160401</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>[GTK] WebProcess from WebKitGtk+ 2.13.4 SIGSEGVs in _ZNKSt10unique_ptrIN3WTF7HashMapIiS_IN7WebCore15GlyphMetricsMapINS2_9FloatRectEE16GlyphMetricsPageESt14default_deleteIS6_EENS0_7IntHashIjEENS0_10HashTraitsIiEENSC_IS9_EEEES7_ISF_EE3getEv ()
          </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>Unspecified
          </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>agomez&#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=285006" name="attach_285006" title="BT from gdb">attachment 285006</a> <a href="attachment.cgi?id=285006&amp;action=edit" title="BT from gdb">[details]</a></span>
BT from gdb

I'm using WebKitGtk+ with my own JHBuild setting:
<a href="https://github.com/tanty/jhbuild-epiphany/tree/master">https://github.com/tanty/jhbuild-epiphany/tree/master</a>

Epiphany 3.20.3 and WebKit 2.13.4 with a couple of applied patches.

I'm running Epiphany with the dconf key:

&quot;process-model&quot; = &quot;shared-secondary-process&quot;

The compilation was done with CMake args:

'-DPORT=GTK -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_FLAGS_RELEASE=&quot;-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS&quot; -DCMAKE_CXX_FLAGS_RELEASE=&quot;-O0 -g1 -DNDEBUG -DG_DISABLE_CAST_CHECKS&quot;'

After visiting several pages, eventually, WebKitWebProcess hits a SIGTRAP.

This bug is not reproducible in a predictable way.</pre>
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