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

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#20423: Clock jumps on FreeBSD relay
--------------------------------+------------------------------------
 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:
--------------------------------+------------------------------------

Comment (by Felixix):

 The mistery seems solved! After setting `Address my.ext.i.p` the hourly
 warnings and the stalling is gone again. What one would do if guessing
 becomes necessary (dynamic ip) ?

 Two relays are configured newly and both work fine. I am confident to
 switch all relays to 0.2.8.9 now.

 And tell me if I shall test a modified ip guessing sometimes. My setup
 (jail) seems sensitive and reproducible for it.

 Thanks to everybody

 ----
 0.2.8.9 with `Address my.ext.i.p`

 '''torrc good'''
 Address my.ext.i.p
 ORPort my.ext.i.p:443 NoListen
 ORPort my.loc.i.p:1234 NoAdvertise
 DirPort my.ext.i.p:80 NoListen
 DirPort my.loc.i.p:5678 NoAdvertise

 '''top''' tor process shows no stalling.

 ----
 0.2.8.9 without `Address my.ext.i.p`

 '''torrc bad'''
 #Address my.ext.i.p
 ORPort my.ext.i.p:443 NoListen
 ORPort my.loc.i.p:1234 NoAdvertise
 DirPort my.ext.i.p:80 NoListen
 DirPort my.loc.i.p:5678 NoAdvertise

 '''log bad'''
 ...
 Nov 10 07:30:47.410 [notice] Tor v0.2.8.9 running on FreeBSD with Libevent
 2.0.22-stable, OpenSSL LibreSSL 2.4.3 and Zlib 1.2.8.
 ...
 Nov 10 07:30:47.425 [notice] Opening OR listener on my.loc.i.p:1234
 Nov 10 07:30:47.426 [notice] Opening Directory listener on my.loc.i.p:5678
 ...
 Nov 10 07:36:43.000 [notice] Guessed our IP address as my.ext.i.p
 ...
 Nov 10 09:36:27.000 [warn] Your system clock just jumped 321 seconds
 forward; assuming established circuits no longer work.
 Nov 10 09:36:28.000 [warn] assign_to_cpuworker failed. Ignoring.
 in total 168 times
 Nov 10 09:36:30.000 [warn] assign_to_cpuworker failed. Ignoring.
 ...
 Nov 10 10:36:30.000 [warn] Your system clock just jumped 325 seconds
 forward; assuming established circuits no longer work.
 Nov 10 10:36:31.000 [warn] assign_to_cpuworker failed. Ignoring.
 in total 171 times
 Nov 10 10:36:33.000 [warn] assign_to_cpuworker failed. Ignoring.
 ...
 Nov 10 11:36:30.000 [warn] Your system clock just jumped 325 seconds
 forward; assuming established circuits no longer work.
 Nov 10 11:36:31.000 [warn] assign_to_cpuworker failed. Ignoring.
 in total 164 times
 Nov 10 11:36:33.000 [warn] assign_to_cpuworker failed. Ignoring.

 '''top bad''' tor process
 2016-11-10_11-40-00 25.98% tor
 2016-11-10_11-39-00 17.97% tor
 2016-11-10_11-38-00 11.96% tor
 2016-11-10_11-37-00 13.96% tor
 2016-11-10_11-36-00  3.96% tor
 2016-11-10_11-35-00  1.95% tor
 2016-11-10_11-34-00  3.96% tor
 2016-11-10_11-33-00  3.96% tor
 2016-11-10_11-32-00  3.96% tor
 2016-11-10_11-31-00 19.97% tor
 2016-11-10_11-30-00 19.97% tor
 2016-11-10_11-29-00 17.97% tor
 2016-11-10_11-28-00 21.97% tor
 2016-11-10_11-27-00 25.98% tor

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20423#comment:27>
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