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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 - 1.14 crash on cairo_stroke, antialias, fractional line width"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=85372">85372</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>1.14 crash on cairo_stroke, antialias, fractional line width
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>cairo
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Mac OS X (All)
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>critical
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>image backend
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>chris@chris-wilson.co.uk
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>mflatt@cs.utah.edu
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>cairo-bugs@cairographics.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=108306" name="attach_108306" title="example program that crashes">attachment 108306</a> <a href="attachment.cgi?id=108306&action=edit" title="example program that crashes">[details]</a></span>
example program that crashes

I get a concistsnt segfault with the enclosed program on 1.14, and not on
1.12.16.

I used OS X, but the crash's stack trace is consistent with one reported by
a Racket user on 64-bit Linux (Debian unstable).

Using a different back end, making the image size smaller, removing the call
to enable antialiasing, removing the line-width adjustment, or dropping one
of the line-tos makes the crash go away for 1.14.</pre>
        </div>
      </p>
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