[tor-bugs] #8185 [Tor]: circuit_package_relay_cell(): Bug: outgoing relay cell has n_chan==NULL. Dropping.

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#8185: circuit_package_relay_cell(): Bug: outgoing relay cell has n_chan==NULL.
Dropping.
-----------------------+----------------------------------------------------
 Reporter:  mr-4       |          Owner:                    
     Type:  defect     |         Status:  needs_review      
 Priority:  normal     |      Milestone:  Tor: 0.2.4.x-final
Component:  Tor        |        Version:  Tor: 0.2.4.9-alpha
 Keywords:  tor-relay  |         Parent:                    
   Points:             |   Actualpoints:                    
-----------------------+----------------------------------------------------
Changes (by nickm):

  * status:  new => needs_review


Comment:

 Hm. I think the best we can do here is some kind of diagnostic branch to
 improve the bug message.  Somebody is calling relay_send_command_from_edge
 on a circuit that hasn't actually negotiated with anything yet.  (Do you
 have optimistic data enabled?)

 Branch "bug8185_diagnostic" in my public repository tries to improve the
 log message in a way that might help to track this down.

-- 
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8185#comment:3>
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