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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AMQCPP-128) Transacted session crashes or loses messages
Date Thu, 14 Jun 2007 11:27:33 GMT

     [ https://issues.apache.org/activemq/browse/AMQCPP-128?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish updated AMQCPP-128:
--------------------------------

    Fix Version/s: 2.1
         Assignee: Timothy Bish  (was: Nathan Mittler)

Moving to 2.1.  No rest for the weary.  

> Transacted session crashes or loses messages
> --------------------------------------------
>
>                 Key: AMQCPP-128
>                 URL: https://issues.apache.org/activemq/browse/AMQCPP-128
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>    Affects Versions: 2.1
>            Reporter: Albert Strasheim
>            Assignee: Timothy Bish
>             Fix For: 2.1
>
>         Attachments: main.cpp
>
>
> Attached is some code that does a few things with transacted sessions, in a loop. This
sometimes reproduces the crash I mentioned in one of my latest comments in AMQCPP-122.
> I'm testing on Windows XP SP2 with Visual Studio 8 on Core 2 Duo machine.
> I've also seen all of the following happen in subsequent runs of the code:
> - Where I expect to receive a message, nothing turns up (even with a long timeout period).
Cleanup goes fine.
> - Where I expect to receive a message, nothing turns up. Cleanup hangs.
> - Sometimes it prints:
> Mutex::unlock - Failed, not Lock Owner!
>         FILE: ..\src\main\activemq\concurrent\Mutex.cpp, LINE: 83
>         FILE: activemq-cpp\src\main\activemq/concurrent/Lock.h, LINE: 110
>         FILE: ..\src\main\activemq\core\ActiveMQConsumer.cpp, LINE: 443
>         FILE: ..\src\main\activemq\core\ActiveMQSessionExecutor.cpp, LINE: 192
> and keeps on going
> - Sometimes it crashes with the following when running a Debug build on Windows:
> ---------------------------
> Microsoft Visual C++ Debug Library
> ---------------------------
> Debug Assertion Failed!
> Program: ...
> File: C:\Program Files\Microsoft Visual Studio 8\VC\include\list
> Line: 776
> Expression: list erase iterator outside range
> For information on how your program can cause an assertion
> failure, see the Visual C++ documentation on asserts.
> (Press Retry to debug the application)
> ---------------------------
> Abort   Retry   Ignore   
> ---------------------------
> - Sometimes it crashes with something along these lines:
> ---------------------------
> vs2005-activemq-example.exe - Application Error
> ---------------------------
> The instruction at "0x0053dd80" referenced memory at "0xdddddddd". The memory could not
be "read".
> Click on OK to terminate the program
> Click on CANCEL to debug the program
> ---------------------------
> OK   Cancel   
> ---------------------------
> The relevant thread's stack trace looks like this:
> >	vs2005-activemq-example.exe!activemq::core::ActiveMQSession::close()  Line 110 +
0x8 bytes	C++
>  	vs2005-activemq-example.exe!activemq::core::ActiveMQSession::~ActiveMQSession()  Line
74 + 0x8 bytes	C++
>  	vs2005-activemq-example.exe!activemq::core::ActiveMQSession::`scalar deleting destructor'()
 + 0xf bytes	C++
>  	vs2005-activemq-example.exe!test_transaction(const std::basic_string<char,std::char_traits<char>,std::allocator<char>
> & url="tcp://localhost:61613?wireFormat=stomp")  Line 78 + 0x37 bytes	C++
>  	vs2005-activemq-example.exe!main(int argc=1, char * * argv=0x003558c8)  Line 85 + 0x30
bytes	C++
>  	vs2005-activemq-example.exe!__tmainCRTStartup()  Line 597 + 0x19 bytes	C
>  	vs2005-activemq-example.exe!mainCRTStartup()  Line 414	C
> It crashes where it's doing resource->close() because resource points to garbage.

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