[tor-bugs] #20423 [Core Tor/Tor]: Clock jumps on FreeBSD relay

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#20423: Clock jumps on FreeBSD relay
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 Reporter:  Felixix             |          Owner:
     Type:  defect              |         Status:  new
 Priority:  High                |      Milestone:  Tor: 0.2.9.x-final
Component:  Core Tor/Tor        |        Version:  Tor: 0.2.8.9
 Severity:  Normal              |     Resolution:
 Keywords:  regression freebsd  |  Actual Points:
Parent ID:                      |         Points:
 Reviewer:                      |        Sponsor:
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Comment (by teor):

 In 0.2.9.1-alpha, we changed how we used timers:

 I wonder if your OS has a broken monotonic timer:
 {{{
     - Tor now uses the operating system's monotonic timers (where
       available) for internal fine-grained timing. Previously we would
       look at the system clock, and then attempt to compensate for the
       clock running backwards. Closes ticket 18908.
 }}}

 Alternately, I wonder if your OS previously relied on Tor compensating for
 the clock running backwards.

 Can you please run the tor unit tests in your jail?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20423#comment:16>
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