[tor-bugs] #25692 [Core Tor/Tor]: onion_extend_cpath: Non-fatal assertion info || client failed.

[Tor Bug Tracker & Wiki]

#25692: onion_extend_cpath: Non-fatal assertion info || client failed.
-------------------------------------------------+-------------------------
 Reporter:  nickm                                |          Owner:  nickm
     Type:  defect                               |         Status:
                                                 |  merge_ready
 Priority:  High                                 |      Milestone:  Tor:
                                                 |  0.3.3.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  034-must 033-backport regression     |  Actual Points:
  chutney 034-included-20180403 033-maybe-must   |
Parent ID:  #25691                               |         Points:
 Reviewer:  dgoulet, teor                        |        Sponsor:
-------------------------------------------------+-------------------------

Comment (by franklin):

 Just ran into this in 0.3.3.5-rc


 {{{
 May 05 19:27:17 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Failed
 to find node for hop #1 of our path. Discarding this circuit.
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]:
 tor_bug_occurred_(): Bug: ../src/or/circuitbuild.c:2772:
 onion_extend_cpath: Non-fatal assertion info || client failed. (on Tor
 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 Non-fatal assertion info || client failed in onion_extend_cpath at
 ../src/or/circuitbuild.c:2772. Stack trace: (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(log_backtrace+0x43) [0x55f6533941f3] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(tor_bug_occurred_+0xb9) [0x55f6533afa89] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(circuit_establish_circuit+0x732) [0x55f6532e5362] (on Tor
 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(circuit_launch_by_extend_info+0x8c) [0x55f6532f84fc] (on Tor
 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(consider_testing_reachability+0x151) [0x55f6532a6571] (on Tor
 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(+0x514cc) [0x55f65325c4cc] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(+0x71c90) [0x55f65327cc90] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6(+0x22c05) [0x7f89e2b66c05] (on
 Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/lib/x86_64-linux-gnu/libevent-2.1.so.6(event_base_loop+0x5a7)
 [0x7f89e2b67537] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(do_main_loop+0x2b4) [0x55f6532605d4] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(tor_run_main+0x1025) [0x55f653262aa5] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(tor_main+0x3a) [0x55f65325b06a] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(main+0x19) [0x55f65325adf9] (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f89e1118a87]
 (on Tor 0.3.3.5-rc )
 May 05 19:27:18 tor-exit.bynumlaw.net Tor-104.200.20.46_9001[8717]: Bug:
 /usr/bin/tor(_start+0x2a) [0x55f65325ae4a] (on Tor 0.3.3.5-rc )

 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25692#comment:15>
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