[tor-bugs] #3296 [Tor Client]: Exitnode that can't handle a predicted port -> endless circuit creation

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#3296: Exitnode that can't handle a predicted port -> endless circuit creation
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 Reporter:  arma        |          Owner:                    
     Type:  defect      |         Status:  needs_review      
 Priority:  major       |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Client  |        Version:                    
 Keywords:              |         Parent:                    
   Points:              |   Actualpoints:                    
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Comment(by arma):

 Replying to [comment:3 nickm]:
 > If so, see branch "bug3296" in my public repository.

 Your branch seems to work ok. But:

 > (But consider that in the example you give, for us to get the "doomed
 exit at random" message, *every* exit  needs to have n_supported == -1,
 right? So if you're seeing that one, not only is it hopeless to build a
 circuit to cherrybomb for 5122; it is also hopeless to try to build a
 circuit at all, I think. Could that be another bug?)

 You're right, in this case we're launching a new circuit, repeatedly, when
 we really ought to be telling the stream to fail. This whole 'doomed exit'
 thing was supposed to improve our robustness during edge cases. But I
 think it just leads to sadness. Hm.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3296#comment:5>
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