[tor-bugs] #28639 [Core Tor/sbws]: After several days, most of the circuits timeout

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#28639: After several days, most of the circuits timeout
------------------------------------------+--------------------------------
 Reporter:  juga                          |          Owner:  (none)
     Type:  defect                        |         Status:
                                          |  needs_information
 Priority:  Medium                        |      Milestone:  sbws:
                                          |  1.0.x-final
Component:  Core Tor/sbws                 |        Version:
 Severity:  Normal                        |     Resolution:
 Keywords:  sbws-1.0-must-moved-20181128  |  Actual Points:
Parent ID:  #25925                        |         Points:
 Reviewer:                                |        Sponsor:
------------------------------------------+--------------------------------

Comment (by teor):

 Replying to [comment:9 teor]:
 > Replying to [comment:7 teor]:
 > > Replying to [comment:6 juga]:
 > > {{{
 > > 0 guards are live.
 > > }}}
 > >
 > > > I can't figure out reasons with that, but maybe you do.
 > >
 > > sbws sets `UseEntryGuards 0`, so it should never have any guards:
 > > https://github.com/torproject/sbws/blob/master/sbws/globals.py#L19
 >
 > Are you running Tor 0.2.9?
 >
 > The "entry guards are live" log message is not in master:
 >
 https://github.com/torproject/tor/blob/master/src/core/or/circuituse.c#L630
 >
 > I think that it was removed in 0.3.0.1-alpha:
 >
 https://github.com/torproject/tor/commit/68679504323b0a676a446b8fb34b976c9dc66b4f

 I think this is also an unhelpful log message, because there are no entry
 guards.

 I'll need info-level logs to debug this issue.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28639#comment:10>
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