[tor-bugs] #18614 [Tor]: tor uses full cpu when unplugged

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#18614: tor uses full cpu when unplugged
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 Reporter:  zqcxobbe      |          Owner:
     Type:  defect        |         Status:  needs_information
 Priority:  Medium        |      Milestone:
Component:  Tor           |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  tor cpu hang  |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Comment (by zqcxobbe):

 Replying to [comment:5 cypherpunks]:
 > > [ticket:4588#comment:1 To debug], it would be good to know where we're
 actually freezing. Try running with "DisableDebuggerAttachment 0", then if
 it locks up again, attach a debugger with "gdb -p {PID of tor}", and use
 "bt" to get a stack trace and figure out where Tor is stalled?

 It happened again. I tried the suggestion above, but I only got "No stack"
 in gdb. Any ideas of how to get some useful information?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18614#comment:8>
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