IO.select sometime reports Unable to establish loopback

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Major Major
  • Resolution: Incomplete
  • Affects Version/s: JRuby 1.1.4
  • Fix Version/s: None
  • Component/s: Core Classes/Modules
  • Labels:
    None
  • Environment:
    Windows XP, JDK 1.5

Description

This error happends frequently after running the same program using net/ssh

D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/transport/packet_stream.rb:68:in `available_for_read?': Unable to establish loopback
connection (IOError)
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/transport/packet_stream.rb:80:in `next_packet'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/transport/session.rb:160:in `poll_message'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/transport/session.rb:155:in `loop'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/transport/session.rb:155:in `poll_message'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/connection/session.rb:437:in `dispatch_incoming_packets'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/connection/session.rb:194:in `preprocess'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/connection/session.rb:178:in `process'
from D:/huy/scripts/jruby1.1.4/lib/ruby/gems/1.8/gems/net-ssh-2.0.4/lib/net/ssh/connection/session.rb:142:in `loop'

Activity

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Wayne Meissner added a comment -

That error appears to be bubbling up from the windows selector implementation. It could be that the selector isn't always getting closed (there are a few exception paths in IO#select that can cause that), or windows just can't create and tear down selectors quickly.

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Wayne Meissner added a comment - That error appears to be bubbling up from the windows selector implementation. It could be that the selector isn't always getting closed (there are a few exception paths in IO#select that can cause that), or windows just can't create and tear down selectors quickly.
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Le Huy added a comment -

the same program work well with MRI, can it be a bug of JRUBY implementation of IO module ?

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Le Huy added a comment - the same program work well with MRI, can it be a bug of JRUBY implementation of IO module ?
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Charles Oliver Nutter added a comment -

Le Huy: It's certainly possible...I'm not sure how to proceed on this one though. Any chance you can provide a simple script we can run to reproduce it?

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Charles Oliver Nutter added a comment - Le Huy: It's certainly possible...I'm not sure how to proceed on this one though. Any chance you can provide a simple script we can run to reproduce it?
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Charles Oliver Nutter added a comment -

No followup with a reproducible test case; incomplete.

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Charles Oliver Nutter added a comment - No followup with a reproducible test case; incomplete.

People

  • Assignee:
    Charles Oliver Nutter
    Reporter:
    Le Huy
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Dates

  • Created:
    Updated:
    Resolved: