0006232: Sim crash due to race condition in OpenSim.Framework.Cache

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Date Submitted

Last Update

0006232

opensim

[REGION] OpenSim Core

public

2012-08-20 19:42

2012-08-20 20:07

Reporter

justincc

Assigned To

justincc

Priority

high

Severity

major

Reproducibility

have not tried

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0006232: Sim crash due to race condition in OpenSim.Framework.Cache

Description

Walter Balazic reported the following to me in private e-mail

2012-08-19 01:27:06,046 ERROR - OpenSim.Region.ClientStack.LindenUDP.LLClientView [LLCLIENTVIEW]: Caught exception while processing OpenMetaverse.Packets.ParcelInfoRequestPacket for Walter Balazic, Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index at System.ThrowHelper.ThrowArgumentOutOfRangeException()
   at System.Collections.Generic.List`1.RemoveAt(Int32 index)
   at System.Collections.Generic.List`1.Remove(T item)
   at OpenSim.Framework.Cache.Expire(Boolean getting) in c:\opensim-release-candy-one\OpenSim\Framework\Cache.cs:line 470
   at OpenSim.Framework.Cache.GetItem(String index) in c:\opensim-release-candy-one\OpenSim\Framework\Cache.cs:line 327
   at OpenSim.Framework.Cache.Get(String index) in c:\opensim-release-candy-one\OpenSim\Framework\Cache.cs:line 344
   at OpenSim.Framework.Cache.Get(String index, FetchDelegate fetch) in c:\opensim-release-candy-one\OpenSim\Framework\Cache.cs:line 357
   at OpenSim.Region.CoreModules.World.Land.LandManagementModule.ClientOnParcelInfoRequest(IClientAPI remoteClient, UUID parcelID) in c:\opensim-release-candy-one\OpenSim\Region\CoreModules\World\Land\LandManagementModule.cs:line 1591
   at OpenSim.Region.ClientStack.LindenUDP.LLClientView.HandleParcelInfoRequest(IClientAPI sender, Packet Pack) in c:\opensim-release-candy-one\OpenSim\Region\ClientStack\Linden\UDP\LLClientView.cs:line 8631

This looks like a race condition.

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No tags attached.

Git Revision or version number

Run Mode

Grid (1 Region per Sim)

Physics Engine

BasicPhysics

Environment

.NET / Windows64

Mono Version

None

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Attached Files

Relationships

Notes
(0022393) justincc (administrator) 2012-08-20 20:07	Fixed by git master 970727e

Issue History
Date Modified	Username	Field	Change
2012-08-20 19:42	justincc	New Issue
2012-08-20 19:42	justincc	Assigned To	=> justincc
2012-08-20 19:42	justincc	Status	new => assigned
2012-08-20 20:07	justincc	Note Added: 0022393
2012-08-20 20:07	justincc	Status	assigned => closed
2012-08-20 20:07	justincc	Resolution	open => fixed