[tor-bugs] #15245 [Tor]: SETCONF Log results in segfault when not running a relay

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#15245: SETCONF Log results in segfault when not running a relay
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     Reporter:  anonym  |      Owner:
         Type:  defect  |     Status:  needs_review
     Priority:  major   |  Milestone:  Tor: 0.2.6.x-final
    Component:  Tor     |    Version:  Tor: 0.2.6.4-rc
   Resolution:          |   Keywords:  tor-client regression
Actual Points:          |  Parent ID:
       Points:          |
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Comment (by dgoulet):

 Neither the commit message nor change file explain why `threadpool` could
 be NULL in there.

 Why are we getting into "updating the cpuworkers' task" without the
 subsystem being initialized? Should we try to avoid that instead like
 putting `cpuworkers_rotate_keyinfo` in the server_mode() if block before?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15245#comment:3>
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