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From "Cliff Jansen (JIRA)" <qpid-...@incubator.apache.org>
Subject [jira] Updated: (QPID-1550) C++ broker crashes periodically when handling connection closure
Date Thu, 12 Mar 2009 23:38:50 GMT

     [ https://issues.apache.org/jira/browse/QPID-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Cliff Jansen updated QPID-1550:
-------------------------------

    Attachment: patch.1550

This bug is caused when AsynchIO::queueForDeletion() is called with
(opsInProgress > 0).

On the subsequent (deferred) AsynchIO::writeComplete() call, a second
call is made to AsynchIO::close().  The socket.close() call references
memory deleted immediately prior to the the queueForDeletion call
(from AsynchIOHandler::closedSocket).

The attached patch is one way to fix this.  As far as I can tell, the
queuedDelete variable is set and tested from within the same thread,
so there should be no additional locking issues.


> C++ broker crashes periodically when handling connection closure
> ----------------------------------------------------------------
>
>                 Key: QPID-1550
>                 URL: https://issues.apache.org/jira/browse/QPID-1550
>             Project: Qpid
>          Issue Type: Bug
>          Components: C++ Broker
>    Affects Versions: M4
>         Environment: Windows XP SP2, Visual Studio 2008 SP 1. .NET WCF client (trunk)
>            Reporter: Robert Greig
>            Assignee: Steve Huston
>         Attachments: patch.1550, qpid-broker-log.txt
>
>
> Periodically when running the .NET WCF client against the C++ broker running on windows,
the broker crashes.
> This occurs every 10 runs or thereabouts.
> Logs and stacks attached.

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