<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 - Crash in WebCore::RenderObject::repaintSlowRepaintObject()"
   href="https://bugs.webkit.org/show_bug.cgi?id=167295">167295</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Crash in WebCore::RenderObject::repaintSlowRepaintObject()
          </td>
        </tr>

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

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

        <tr>
          <th>Version</th>
          <td>Safari Technology Preview
          </td>
        </tr>

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

        <tr>
          <th>URL</th>
          <td>http://sonnreich.at
          </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>WebCore Misc.
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>dieter&#64;komendera.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=299486" name="attach_299486" title="crash log">attachment 299486</a> <a href="attachment.cgi?id=299486&amp;action=edit" title="crash log">[details]</a></span>
crash log

I can almost reliably reproduce this crash:

1) go to <a href="http://sonnreich.at">http://sonnreich.at</a>
2) click a link at the bottom of the page, i.e &quot;WOHNEN&quot;
3) use the back button to navigate back
4) scroll down

Sometimes it crashes at 3), sometimes at 4) and sometimes not at all.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore                 0x000000010fb3a670 WebCore::RenderObject::repaintSlowRepaintObject() const + 32
1   com.apple.WebCore                 0x000000010ee85a19 WebCore::FrameView::scrollContentsSlowPath(WebCore::IntRect const&amp;) + 121
2   com.apple.WebCore                 0x000000010edf682a WebCore::ScrollView::scrollContents(WebCore::IntSize const&amp;) + 362
3   com.apple.WebCore                 0x000000010fc16cf6 WebCore::ScrollView::scrollTo(WebCore::IntPoint const&amp;) + 150
4   com.apple.WebCore                 0x000000010f26d635 WebCore::FrameView::scrollTo(WebCore::IntPoint const&amp;) + 53

Release 21 (Safari 10.2, WebKit 12604.1.2)
macOS 10.12.2 (16C67)</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>