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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Assertion "(_cairo_atomic_int_get (&(&surface->ref_count)->ref_count) > 0)""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91967#c17">Comment # 17</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Assertion "(_cairo_atomic_int_get (&(&surface->ref_count)->ref_count) > 0)""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91967">bug 91967</a>
              from <span class="vcard"><a class="email" href="mailto:jskarvad@redhat.com" title="Jaroslav Škarvada <jskarvad@redhat.com>"> <span class="fn">Jaroslav Škarvada</span></a>
</span></b>
        <pre>Created <span class=""><a href="attachment.cgi?id=124014" name="attach_124014" title="Reproducer">attachment 124014</a> <a href="attachment.cgi?id=124014&action=edit" title="Reproducer">[details]</a></span>
Reproducer

Reproducing the problem is easy, attaching reproducer:

$ ./test3.py &
$ ./test4.py

And the race sooner (usually very quickly) or later triggers.</pre>
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