[tor-bugs] #21242 [Core Tor/Tor]: Start-up error [onion_extend_cpath: Assertion info || client failed; aborting]

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#21242: Start-up error [onion_extend_cpath: Assertion info || client failed;
aborting]
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 Reporter:  Felixix       |          Owner:  nickm
     Type:  defect        |         Status:  merge_ready
 Priority:  Medium        |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:  Tor: 0.3.0.1-alpha
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by nickm):

 Thanks for the fast review!

 > a) Do you think the "wait till all primaries guard have descriptors"
 might delay bootup? I don't think so. If we are afraid of that perhaps we
 can switch logic to "wait till the first top maybe-reachable primary guard
 has descriptor".

 I don't think so either; there should be no delay unless you happen to get
 unlucky in your timing of which descriptors download when.  (Or if a
 hostile directory guard or fallback decides not to send you some
 descriptors.  But in that case you probably do want to wait for them.)

 > Should these two new behaviors be mentioned in guard-spec.txt?

 Yes!  I'll make a patch for that too.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21242#comment:14>
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