[tor-bugs] #24011 [Core Tor/Tor]: Attempt to open a stream on first hop of circuit

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Dec 11 21:24:27 UTC 2017


#24011: Attempt to open a stream on first hop of circuit
--------------------------+------------------------------------
 Reporter:  teor          |          Owner:  (none)
     Type:  defect        |         Status:  needs_information
 Priority:  Medium        |      Milestone:  Tor: 0.3.2.x-final
Component:  Core Tor/Tor  |        Version:  Tor: 0.3.2.2-alpha
 Severity:  Normal        |     Resolution:
 Keywords:  tor-circuit   |  Actual Points:
Parent ID:                |         Points:  1
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------

Comment (by teor):

 I think this might be happening because some relay connections are not
 mutually authenticated.
 One possible reason is that chutney sets AssumeReachable, which makes
 relays start up much faster.
 We also run really fast consensus intervals, which can cause race
 conditions like this.

 We should check what it takes for a relay to authenticate - maybe this
 happens when we don't have relay microdescs (and therefore relay ed keys?)

 I haven't seen this error in earlier versions, so it may be something new.
 Or it might have always been there, but we're seeing it now, because we
 have a stricter definition of is_client.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24011#comment:6>
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