diff --git a/nova/virt/libvirt/driver.py b/nova/virt/libvirt/driver.py
index edf1a6130368..fd831491a18d 100644
--- a/nova/virt/libvirt/driver.py
+++ b/nova/virt/libvirt/driver.py
@@ -983,7 +983,7 @@ class LibvirtDriver(driver.ComputeDriver):
 else:
 retry = False
 errcode = e.get_error_code()
- LOG.error(_('Error from libvirt during unfilter. '
+ LOG.exception(_('Error from libvirt during unfilter. '
 'Code=%(errcode)s Error=%(e)s') %
 {'errcode': errcode, 'e': e},
 instance=instance)
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://opendev.org/openstack/nova/commit/d91a7d456fa97159947f753a80fa615894dff2ce.diff">(-&gt;オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://opendev.org/openstack/nova/commit/d91a7d456fa97159947f753a80fa615894dff2ce.diff" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>