[tor-bugs] #26469 [- Select a component]: tor on SunOS: [err] Error from libevent: evport.c:425: Assertion evpd->ed_pending[i] == fd failed in evport_del

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#26469: tor on SunOS: [err] Error from libevent: evport.c:425: Assertion
evpd->ed_pending[i] == fd failed in evport_del
--------------------------------------+----------------------------
     Reporter:  ruebezahl             |      Owner:  (none)
         Type:  defect                |     Status:  new
     Priority:  Medium                |  Milestone:
    Component:  - Select a component  |    Version:  Tor: 0.3.3.7
     Severity:  Critical              |   Keywords:  libevent crash
Actual Points:                        |  Parent ID:
       Points:                        |   Reviewer:
      Sponsor:                        |
--------------------------------------+----------------------------
 {{{
 Tor 0.3.3.7 (git-035a35178c92da94) running on SunOS with Libevent
 2.1.8-stable, OpenSSL 1.0.2o, Zlib 1.2.11, Liblzma N/A, and Libzstd N/A.
 }}}
 (this error was also observed under tor 0.3.3.6 for about two weeks, no
 change with updating to 0.3.3.7)

 every 10-20 minutes (sometimes longer) the process crashes with:


 {{{
 [err] Error from libevent: evport.c:425: Assertion evpd->ed_pending[i] ==
 fd failed in evport_del
 }}}
 Contrary to tor crashes no libevent stacktrace is provided in default
 output.

 The OS-Project under which the Service is running should have sufficent
 fd-ulimits:


 {{{
 ulimit -n
 65536
 }}}

 Service privileges for the running User are pretty standard:

 {{{
 privileges='basic,net_privaddr'
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/26469>
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