bugXMPP4R - Bugs: bug #18132, REXML::UndefinedNamespaceException...

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bug #18132: REXML::UndefinedNamespaceException when running on Windows 7 with Ruby 1.9.2-p180

Submitted by:  None
Submitted on:  Fri May 13 20:05:31 2011  
Category: NoneSeverity: 5 - Blocker
Priority: 5 - NormalStatus: None
Privacy: PublicAssigned to: None
Originator Email: -unavailable-Open/Closed: Open

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Thu May 26 12:51:22 2011, comment #3:

The problem appears to be caused by (or at least related to) the parser thread getting stuck in the "aborting" state after being killed upon successful authentication.

The following patch exposes the issue as a hang on Ruby 1.9.2, but runs normally on 1.8.7 and 1.9.1.

Tim Jensen <tjensen>
Fri May 13 20:35:48 2011, comment #2:

The server is ejabberd version 2.1.2-2, running on Ubuntu 10.04.2 LTS.

Tim Jensen <tjensen>
Fri May 13 20:19:59 2011, comment #1:

The following monkey-patch instrumentation of REXML is sufficient to make the problem disappear:

module REXML::Parsers
class BaseParser
alias_method :the_real_pull, :pull
def pull
puts "PULL START #{Thread.current}"
puts "PULL END: #{Thread.current}"

Tim Jensen <tjensen>
Fri May 13 20:05:31 2011, original submission:

I'm trying to use XMPP4R 0.5 with Ruby 1.9.2-p180 on Windows 7, but I am observing a REXML exception during the authentication step. The error appears to be timing sensitive because it occurs about 90% of the time and monkey patching REXML to produce debug output makes the issue disappear.

I have attached a small script to reproduce the error. I have also attached the output from running the script with Ruby 1.9.2-p180 on Windows 7.

This issue does not occur with Ruby 1.8.7-p334 on Windows 7.
This issue does not occur with Ruby 1.9.2-p180 on Linux.
This issue does not occur with Ruby 1.8.7-p334 on Linux.



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Attach File(s):

Attached Files
file #12997:  xmpp-test.rb added by None (462B - application/x-ruby)
file #12998:  xmpp-test-output.txt added by None (6kB - text/plain)


Depends on the following items: None found

Items that depend on this one: None found


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  • -unavailable- added by tjensen (Posted a comment)

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    Follow 2 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Fri May 13 20:05:31 2011NoneAttached File-=>Added xmpp-test.rb, #12997
      Attached File-=>Added xmpp-test-output.txt, #12998
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