[tor-bugs] #8387 [Core Tor/Tor]: Unbuilt one-hop circuits sometimes hang around forever

[Tor Bug Tracker & Wiki]

#8387: Unbuilt one-hop circuits sometimes hang around forever
-------------------------------------------------+-------------------------
 Reporter:  mikeperry                            |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  needs_information
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.2.???
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tor-client, 025-triaged,             |  Actual Points:
  027-triaged-1-out 2016-bug-retrospective       |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by bugzilla):

 Seems to be another one spam log, but nevertheless (TBB 6.5a2, Tor
 0.2.8.5-rc):
 {{{
 Sep 01 14:01:59.000 [notice] Your system clock just jumped 21583 seconds
 forward; assuming established circuits no longer work.
 Sep 01 19:09:53.000 [notice] Heartbeat: Tor's uptime is 10:17 hours, with
 1 circuits open. I've sent 9.70 MB and received 55.77 MB.
 Sep 01 19:09:53.000 [notice] Average packaged cell fullness: 63.218%. TLS
 write overhead: 3%
 Sep 01 19:09:53.000 [notice] Diagnostic for issue 8387: Found 1 one-hop
 circuits more than 1800 seconds old! Logging 1...
 Sep 01 19:09:54.000 [notice]   #0 created at 2016-09-01 08:01:50. open,
 General-purpose client. Not marked for close. Package window: 1000. Not
 usable for new conns. Dirty since 2016-09-01 07:51:59 (40674 seconds vs
 600-second cutoff).
 Sep 01 19:09:54.000 [notice]      Stream#1 created at 2016-09-01 08:01:50.
 Socks conn in state open. It is linked and reading from a linked
 connection 00000000. Package window 499. Not marked for close (--:0).
 Hold-open is not set. Has not sent RELAY_END. Not blocked on circuit.
 Sep 01 19:09:54.000 [notice] It has been 18473 seconds since I last called
 circuit_expire_old_circuits_clientside().
 Sep 01 19:09:57.000 [notice] Your system clock just jumped 18482 seconds
 forward; assuming established circuits no longer work.
 Sep 01 19:10:07.000 [notice] Our IP address has changed.  Rotating keys...
 }}}

 (OT: When tried to switch from direct to bridge in Torbutton during
 session, Tor was restarted and began to write UTC instead of local time to
 its log. Thoughts?)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8387#comment:49>
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