[tor-bugs] #8185 [Core Tor/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.
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 Reporter:  mr-4                          |          Owner:
     Type:  defect                        |         Status:
 Priority:  Medium                        |  needs_information
Component:  Core Tor/Tor                  |      Milestone:  Tor:
 Severity:  Normal                        |  0.2.9.x-final
 Keywords:  tor-relay, TorCoreTeam201604  |        Version:  Tor:
Parent ID:                                |  0.2.4.9-alpha
 Reviewer:  isis                          |     Resolution:
                                          |  Actual Points:
                                          |         Points:  medium
                                          |        Sponsor:
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Changes (by isis):

 * status:  needs_review => needs_information


Comment:

 On 0.2.8.x, sending a destroy cell from the entry to the client while the
 client is trying to send data still doesn't seem to trigger this for me…

 Since a bunch of the code for marking circuits for close and freeing them
 changed in 0.2.8, I agree that trying to track this bug down in N
 different tor versions is probably going to be too confusing.  We should
 probably just focus on trying to find it in `maint-0.2.8`?

 I'm putting this ticket back into 'needs_information' state, and hopefully
 more people will come along and try to figure out where this bug is coming
 from.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/8185#comment:29>
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