Yes, there is a known problem with OpenSimulator 0.7.2 shutting down on Mono 2.6.x when the number of scripts pass a certain threshold. It's an issue with unloading them from the AppDomain.

I don't believe you actually need to worry about this problem - by the time OpenSimulator reaches this point in shutdown everything that needs to be saved has already been saved correctly.

Upgrading to Mono 2.10.x and/or the forthcoming OpenSimulator 0.7.3 will make this crash go away. In the former case this is because Mono fixed the bug with unloading AppDomains and in the latter because OpenSimulator no longer bothers to unnecessarily unload scripts if the simulator is completely shutting down anyway.

On 25/02/12 13:36, Fleep Tuque wrote:
Hi Clive,

I saw on the Mantis that there's a similar report from a while back and in the 
comments it looks like the issue was
identified as a bug with Mono itself.  Why it would start appearing now is 
beyond my ability to guess (someone suggested
in the thread it might have something to do with scripts), but the 
recommendation in the thread was to upgrade Mono.

See the details at: http://opensimulator.org/mantis/view.php?id=4650

Not sure if that helps!

- Chris/Fleep

Chris M. Collins (SL/OS: Fleep Tuque)
Center for Simulations & Virtual Environments Research (UCSIM)
UCIT Instructional & Research Computing
University of Cincinnati
406A Zimmer Hall
315 College Drive
PO BOX 210088
Cincinnati, OH 45221-0088
[email protected] <mailto:[email protected]>
(513) 556-3018

http://ucsim.uc.edu

On Sat, Feb 25, 2012 at 2:56 AM, Clive Gould <[email protected] 
<mailto:[email protected]>> wrote:

    Hi

    We are using OpenSim 0.7.2 with Mono 2.6.7 and MySQL 5.5.12

    The simulator has been running fine for some time.

    It has now started crashing on shutdown. The errors are shown in the
    attached screen shot

    I am wondering if could be problem with the mono version, but why
    should it suddenly go wrong after running fine for ages?

    Can anyone suggest a fix please as this is part of a European project?

    Thanks very much

    Clive

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