[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)

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#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:  needs_review
     Priority:  normal  |  Milestone:  Tor: 0.2.7.x-final
    Component:  Tor     |    Version:  Tor: 0.2.3.25
   Resolution:          |   Keywords:  tor-hs 023-backport 025-triaged
Actual Points:          |  Parent ID:
       Points:          |
------------------------+---------------------------------------------
Changes (by s7r):

 * keywords:  tor-hs SponsorR 023-backport 025-triaged => tor-hs
     023-backport 025-triaged


Comment:

 I receive this warn too. Tor 0.2.5.10 on Debian Wheezy 64 bit.
 One server hosts 4 hidden services, mirrors and free services, pushing a
 big amount of HS traffic. I was able to identify the warn message for 2 of
 the hosted hidden services.

 I have 2 other servers hosting other hidden services (one HS each) and get
 the warn on both of them as well.

 When I've seen the warn in logs, all the HSes were accessible and were
 functioning normally. I did not have to restart Tor. CPU/RAM usage was
 also in normal parameters. At least in my cases, the warn did not affect
 HS functionality, all HSes were still reachable without restarting Tor
 when I checked (warn message timestamp:  09:11:08.000 and I checked the
 availability of HSes which were nominated by the warn message at 09:52:58
 - about 41 mins later).

 I don't know what happened to the clients trying to access the HSes
 exactly at the time of the warn (if there were any besides the one who
 caused the warning message).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8864#comment:30>
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