[tor-bugs] #10532 [Tor]: [Tor relay] Random hangs

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#10532: [Tor relay] Random hangs
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     Reporter:  mrc0mmand  |      Owner:
         Type:  defect     |     Status:  new
     Priority:  normal     |  Milestone:
    Component:  Tor        |    Version:  Tor: unspecified
   Resolution:             |   Keywords:
Actual Points:             |  Parent ID:
       Points:             |
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Comment (by mrc0mmand):

 When I investigated last 'freeze' for a longer time, I found it had 100%
 CPU usage only, when it was running (status R) which was for 1 sec at max.
 During above mentioned uninterruptible sleep it had 0% CPU usage. The
 mentioned 100% CPU usage is caused by kernel threads (red CPU bar in
 htop). I apologize for misinterpretation. I understand, that
 uninterruptible sleep is necessary for I/O operations, but why tor get
 stuck in it?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/10532#comment:21>
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