[tor-bugs] #8864 [Tor]: Hidden service: Suddenly the service does not respond to new connections (INTRODUCE2 cell on intro circ with no corresponding rend_intro_point_t)

Tor Bug Tracker & Wiki blackhole at torproject.org
Sat May 11 14:23:12 UTC 2013


#8864: Hidden service: Suddenly the service does not respond to new connections
(INTRODUCE2 cell on intro circ with no corresponding rend_intro_point_t)
---------------------------------+------------------------------------------
 Reporter:  reiam                |          Owner:               
     Type:  defect               |         Status:  new          
 Priority:  normal               |      Milestone:               
Component:  Tor                  |        Version:  Tor: 0.2.3.25
 Keywords:  tor hidden services  |         Parent:               
   Points:                       |   Actualpoints:               
---------------------------------+------------------------------------------
 I am hosting a hidden service with tor on "Windows Server 2008 R2 Standard
 64-bit".

 The clients can connect to my service without problems after I start tor
 (my service is available as it should be).

 After some time (it depends - it can be 10 min, 30 min, up to 2 hours, but
 no longer than 2 hours) i get the following warning every few seconds:

 [warn] rend_service_introduce(): Bug: Internal error: Got an INTRODUCE2
 cell on an intro circ (for service "<censored onion address>") with no
 corresponding rend_intro_point_t.

 (see attached tor logs)

 If i get this warnings, the service is not reachable for new connections,
 so i have to restart tor (existing connections seem to be working).

 Tor on the client side shows no error message (it seems that the service
 is reachable for the client, but the client does not get a response from
 the service, otherwise a message like "hidden service is unavailable (try
 again later)" would appear - which is NOT the case)

 After the restart the service is available again, but after a maximum of 2
 hours the same problem appears again (service is not available for new
 clients).

 I have nothing special in my torrc file (only the default file with
 HiddenServiceDir and HiddenServicePort additionally defined).

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8864>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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