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From "Jeffrey B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQCPP-452) Shutdown causing core dump in 3.5.0
Date Mon, 04 Feb 2013 19:54:12 GMT

    [ https://issues.apache.org/jira/browse/AMQCPP-452?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13570579#comment-13570579
] 

Jeffrey B commented on AMQCPP-452:
----------------------------------

(facepalm) You told me that last time, and I had left it in my sender script on accident.
I though it had no effect and it was the change to Threading.cpp that fixed the problem. I
guess it was both.  So I took out 99% of the lines in my receiver and that was all I needed.
Thanks a lot, sorry for wasting time.
                
> Shutdown causing core dump in 3.5.0
> -----------------------------------
>
>                 Key: AMQCPP-452
>                 URL: https://issues.apache.org/jira/browse/AMQCPP-452
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>          Components: Decaf
>    Affects Versions: 3.5.0
>         Environment: HPUX 11.31
>            Reporter: Jeffrey B
>            Assignee: Timothy Bish
>            Priority: Critical
>              Labels: shutdown, thread
>         Attachments: amqsms.cpp
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> Whenever a thread is created in my receiver program, The use of the activemq::library::ActiveMQCPP::shutdownLibrary();
causes a core dump after my return 0; statement
> It does not happen on my sender after applying patch for a similar issue, and this is
almost identical, so I can not find the difference.
> The cause is trying to lock a null mutex in the function Threading.cpp::attachToCurrentThread().
 This gets called only once in my sender program, during the activemq::library::ActiveMQCPP::initializeLibrary();
call, but it gets called twice in my receiver program, once in the same place and then after
the return 0; line.  At that point library->globalLock is NULL.
> Will attach my source in a moment, but I have literally taken it down to the bare minimum
so that it has no function.

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