[tor-bugs] #21937 [Core Tor/Tor]: Tor arm taking 100% cpu

[Tor Bug Tracker & Wiki]

#21937: Tor arm taking 100% cpu
------------------------------+---------------------------
     Reporter:  donttrackus   |      Owner:
         Type:  defect        |     Status:  new
     Priority:  High          |  Milestone:
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.9.10
     Severity:  Critical      |   Keywords:  tor, arm, cpu
Actual Points:                |  Parent ID:
       Points:                |   Reviewer:
      Sponsor:                |
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 If i open arm in terminal with command
 {{{
 sudo -u debian-tor arm
 }}}
 and after that try to close it with just closing down the terminal, it
 shutsdown from terminal but keeps running in background process. After
 that it starts to eat up to 100% cpu until i manually kill the process.
 Because of this my relay was running 2 days with 100% cpu load with
 multiple arm sessions open.
 Using tor 0.2.9.10 in ubuntu 16.04.2 LTS Xenial
 Didnt find own subdirectory for arm so i selected Tor as a component.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21937>
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