[tor-bugs] #11600 [Tor]: Strange nameserver fail warning in Tor log

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#11600: Strange nameserver fail warning in Tor log
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     Reporter:  s7r     |      Owner:
         Type:  defect  |     Status:  new
     Priority:  normal  |  Milestone:  Tor: 0.2.???
    Component:  Tor     |    Version:  Tor: 0.2.4.21
   Resolution:          |   Keywords:
Actual Points:          |  Parent ID:
       Points:          |
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Comment (by sysfu):

 Experience this issue regularly in the logs of an exit node as well.

 Environment:
 OpenBSD 5.6 - all patches
 Tor 0.2.5.10
 Libevent 1.4.14b-stable
 Zlib 1.2.3
 LibreSSL 2.1.4
 Unbound 1.4.22

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/11600#comment:4>
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