[tor-bugs] #8231 [Tor]: Clients can go crazy when unable to find directory guards

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#8231: Clients can go crazy when unable to find directory guards
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 Reporter:  nickm       |          Owner:                    
     Type:  defect      |         Status:  new               
 Priority:  critical    |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor         |        Version:                    
 Keywords:  tor-client  |         Parent:                    
   Points:              |   Actualpoints:                    
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 When every possible node seems down, clients appear to go crazy adding the
 same nodes as guards over and over.  I am betting that this is due to the
 new directory guard code.

 I have a fix for this (in need of review) in branch "no_dup_guards" in my
 public repository.

 Found while testing different failure modes with Chutney.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8231>
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