[tor-bugs] #8387 [Tor]: Unbuilt one-hop circuits sometimes hang around forever

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#8387: Unbuilt one-hop circuits sometimes hang around forever
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 Reporter:  mikeperry   |          Owner:  mikeperry         
     Type:  defect      |         Status:  assigned          
 Priority:  normal      |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor         |        Version:                    
 Keywords:  tor-client  |         Parent:                    
   Points:              |   Actualpoints:                    
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Changes (by mikeperry):

 * cc: atagar, karsten (added)


Comment:

 This is painful to reproduce and takes days of me watching the Vidalia
 window with an alpha build.. And that's just to get a case where I *might*
 be able to find out what has happened.

 Do we have any ability to write a stem or torperf to watch for this and
 other cases of leaked/unculled circuits? Such a stress test would making
 gathering more instances of this easier. There might be also be other
 cases where circuits sit around unkilled, given the complexity of our
 timeout code :/.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8387#comment:2>
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