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From "Steve Huston" <shus...@riverace.com>
Subject RE: Intermittent Exception C++ Windows - cancel subscription
Date Thu, 31 Mar 2011 17:29:44 GMT
Hi Tony,

> I downloaded and installed the Windows C++ broker (0.8) 
> binary installer. I built the PUB/SUB example (MS 
> VisualStudio 2005) and most of the time it runs successfully. 
> Occasionally, I get an exception deep in the OS.
> Unhandled exception at 0x7c936822 in SUB_example.exe: 
> 0xC0000005: Access violation reading location 0x00000000
> It's in the function __lock_fhandle in osfinfo.c. 

Can you post the stack trace from the crash, ideally in a JIRA entry for
this problem (http://issues.apache.org/jira/browse/qpid) ?

> The application code is trying to cancel the subscription in 
> the topic_listener.cpp example code:
> 			subscriptions.cancel(message.getDestination());
> Any idea's would be greatly appreciated.
> BTW, I am also seeing a lot of "LinkRegistry timer woken up 
> late" messages. Running broker with --auth no --no-data-dir. 
> (Running WinXP in a virtualbox VM).

You can ignore those.


Steve Huston, Riverace Corporation
Total Lifecycle Support for Your Networked Applications

Apache Qpid - AMQP Messaging Implementation
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