[tor-bugs] #16585 [Tor]: relay stops forwarding all traffic when client function cannot establish circuits

[Tor Bug Tracker & Wiki]

#16585: relay stops forwarding all traffic when client function cannot establish
circuits
---------------------------+---------------------------
     Reporter:  starlight  |      Owner:
         Type:  defect     |     Status:  new
     Priority:  normal     |  Milestone:
    Component:  Tor        |    Version:  Tor: 0.2.6.10
   Resolution:             |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |
---------------------------+---------------------------

Comment (by starlight):

 Happened again, got this strange message:

 {{{
 No circuits are opened. Relaxed timeout for circuit 4726 (a Measuring
 circuit timeout 3-hop circuit in state doing handshakes with channel state
 open) to 60000ms. However, it appears the circuit has timed out anyway. N
 guards are live.
 }}}

 Hacked at it a bit and got a full debug of an event, though
 not the one that caused the above message.  Uploaded
 log with [debug] lines excluded as it's 1/2 GB (10MB xz),
 but is available.  A few errors appear and I'm not sure
 which might be most related to the relay forwarding seize-up.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/16585#comment:4>
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