[tor-bugs] #27003 [Core Tor/Tor]: Regression: 'SETCONF ORPort' can kill tor process

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#27003: Regression: 'SETCONF ORPort' can kill tor process
------------------------------+--------------------
     Reporter:  atagar        |      Owner:  (none)
         Type:  defect        |     Status:  new
     Priority:  High          |  Milestone:
    Component:  Core Tor/Tor  |    Version:
     Severity:  Minor         |   Keywords:
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
------------------------------+--------------------
 Hi network team. Recently-ish Stem's integ tests began failing when ran
 with network tests ('run_tests.py --integ --target ONLINE'). Here's the
 repro...

 1. My torrc...

 {{{
 DataDirectory /home/atagar/.tor
 ORPort 9052
 ControlPort 9051
 ExitRelay 0
 }}}

 2. Start tor.

 3. Connect to the control port and toggle the ORPort off and on...

 {{{
 % telnet localhost 9051

 AUTHENTICATE
 250 OK

 RESETCONF ORPort
 250 OK

 SETCONF ORPort=9090
 Connection closed by foreign host.
 }}}

 The tor dies with...

 {{{
 Jul 31 14:49:21.000 [notice] Opening OR listener on 0.0.0.0:9090
 Jul 31 14:49:21.000 [warn] Can't get my x509 link cert.
 Jul 31 14:49:21.000 [err] Unable to update Ed25519 keys!  Exiting.
 Jul 31 14:49:21.000 [notice] Your Tor server's identity key fingerprint is
 'Unnamed 4853AB6F9215A837EA3562CF4AF00713737FDF01'
 Jul 31 14:49:21.000 [notice] Now checking whether ORPort
 71.231.87.208:9090 is reachable... (this may take up to 20 minutes -- look
 for log messages indicating success)
 Jul 31 14:49:21.000 [notice] Configured to measure directory request
 statistics, but no GeoIP database found. Please specify a GeoIP database
 using the GeoIPFile option.
 }}}

 This was with the latest tor git commit (7e4ac02).

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27003>
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