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ID Category Severity Reproducibility Date Submitted Last Update
0000901 [opensim] [REGION] OpenSim Core crash sometimes 2008-04-06 10:19 2008-05-18 16:40
Reporter cfk View Status public  
Assigned To sdague
Priority high Resolution no change required  
Status closed   Product Version
Summary 0000901: r4113 crash to bash on Yang after running for a while
Description After updating Yang (SouthWest corner of Wright Plaza), the region ran for a while and the region crashed to a bash prompt. Perhaps we need to log a message but not crash when this happens.
Additional Information 09:36:31 - [USER TEXTURE DOWNLOAD SERVICE]: Dropping requests for notified missing texture 30a9e0cc-6e5f-42cd-b808-4246f261944f for client a5933a63-27d8-4c7c-86ce-396829b5606f since we have received more than 5 requests
09:36:31 - [USER TEXTURE DOWNLOAD SERVICE]: Queueing first TextureNotFoundSender for 7e37c047-0cb2-49fc-895a-e1d572174fcb, client a5933a63-27d8-4c7c-86ce-396829b5606f
ScriptEngine: Executing function name: default_event_no_sensor
09:36:42 - [CAPS]: Sending new CAPS seed url http://89.33.132.133:9000/CAPS/03dec28f-3582-4b65-958b-22a14d7d0000/ [^] to client a5933a63-27d8-4c7c-86ce-396829b5606f
09:36:42 - [FRIEND]: Removing Yu-hi chan as a root agent
09:36:43 - [USER TEXTURE DOWNLOAD SERVICE]: Queueing first TextureNotFoundSender for 76eb5f84-3871-44ac-95c0-e36fc30de617, client a5933a63-27d8-4c7c-86ce-396829b5606f
09:36:43 - [USER TEXTURE DOWNLOAD SERVICE]: Queueing first TextureNotFoundSender for 33f18a7d-a30b-45d6-886f-23a9aedb6122, client a5933a63-27d8-4c7c-86ce-396829b5606f
09:36:44 - [USER TEXTURE DOWNLOAD SERVICE]: Queueing first TextureNotFoundSender for a3b21015-eb23-4772-bde4-4355bde31df7, client a5933a63-27d8-4c7c-86ce-396829b5606f
09:36:45 - [CONNECTION DEBUGGING]: Creating new circuit code (413991543) for avatar a5933a63-27d8-4c7c-86ce-396829b5606f at SandboxYang
[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]

Application is terminating: True

[ckrinke@tai bin]$
Tags No tags attached.
Git Revision
SVN Revision r4113
Run Mode Grid (1 Region per Sim)
Physics Engine ODE
Environment Mono / Linux32
Mono Version None
Attached Files

- Relationships
related to 0000899closedsdague r4113 startup crash with 'moons' 
related to 0000730closed [ODE] mono 1.2.6 problems with OpenSim 
related to 0000804closedsdague r3937 fatal exception when starting 'moons' after updating OSGrid UGAI 
related to 0000301closedsdague Null Reference Exception on Unused Object 
related to 0000189closed A little bit of extra logging for inventory retrieval 
related to 0000650closedsdague Using force-update crashes sim 
related to 0000609closedsdague self-evoked opensim crash without visible reason 
related to 0000391closedsdague clicking on map and logging out before the region can complete the map request causes region crash 
related to 0000183closed Unhandled Exception: System.NullReferenceException: at System.Timers.Timer.StartTimer () [0x00000] 
related to 0000242closed Strange startup messages 
related to 0000196closed NullReferenceException on StartTimer() 
related to 0000907closedsdague region crashes on large prim objects from inventory no scripts attached 

-  Notes
(0001415)
justincc (manager)
2008-04-06 11:01

 I don't think there's much we actually can do to handle this situation - there's no stack trace to determine where it's going wrong - it could be an internal mono issue.
(0001420)
cfk (administrator)
2008-04-07 06:07

 Crashed again overnight with this very similar exception after running for hours.

02:02:25 - [CAPS]: Sending new CAPS seed url http://71.6.208.87:9101/CAPS/6ed22788-db72-46f5-996a-d06749f10000/ [^] to client 735c2791-b761-4887-a5b4-31ff201da388
[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]

Application is terminating: True

[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]

Application is terminating: True

[ckrinke@tai bin]$ update1
(0001472)
cfk (administrator)
2008-04-10 14:09

 With r4180, after running for several hours and apparently a visitor examining a map, another crash to bash occurred.

12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
12:10:01 - [CLIENT]: unhandled MapItemRequest packet
[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]

Application is terminating: True

[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00000]

Application is terminating: True
(0001484)
cfk (administrator)
2008-04-11 05:56

 When running "mono --debug OpenSim.exe", this crash manifests itself as an exception in /tmp/monobuild/build/BUILD/mono-1.9/mcs/class/System/System.Timers/Timer.cs:203

The question now becomes, how can we deal with a timer crash inside mono?


18:42:34 - Got a texture uuid c228d1cf-4b5d-4ba8-84f4-899a0796aa97 with no sender object to handle it, this shouldn't happen
18:42:34 - Got a texture uuid 7b3145ee-dd88-4e94-a185-ff4f9b38be74 with no sender object to handle it, this shouldn't happen
18:42:34 - Got a texture uuid 9af23bc2-d6f2-4a91-8165-d98b940ff731 with no sender object to handle it, this shouldn't happen
18:42:34 - Got a texture uuid be293869-d0d9-0a69-5989-ad27f1946fd4 with no sender object to handle it, this shouldn't happen
[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x0005e] in /tmp/monobuild/build/BUILD/mono-1.9/mcs/class/System/System.Timers/Timer.cs:203

Application is terminating: True

[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x0005e] in /tmp/monobuild/build/BUILD/mono-1.9/mcs/class/System/System.Timers/Timer.cs:203

Application is terminating: True

[ckrinke@tai bin]$
(0001485)
cfk (administrator)
2008-04-11 06:00

 The previous was with r4180, not r4113. This doesnt have anything to do with recent svn checkins.
(0001659)
sdague (administrator)
2008-04-23 06:58

 fixed in SVN last week
(0001725)
cfk (administrator)
2008-04-26 07:12

 For the first time in a week, Yang crashed to bash last night. It looks like someone had the mainmap open and we got a very similar timer.cs exception.

13:44:50 - [CLIENT]: unhandled MapItemRequest packet
13:44:50 - [CLIENT]: unhandled MapItemRequest packet
13:44:50 - [CLIENT]: unhandled MapItemRequest packet
[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00039] in /tmp/monobuild/build/BUILD/mono-1.9/mcs/class/System/System.Timers/Timer.cs:200

Application is terminating: True

[APPLICATION]:
APPLICATION EXCEPTION DETECTED: System.UnhandledExceptionEventArgs

Exception: System.NullReferenceException: Object reference not set to an instance of an object
  at System.Timers.Timer.StartTimer () [0x00039] in /tmp/monobuild/build/BUILD/mono-1.9/mcs/class/System/System.Timers/Timer.cs:200

Application is terminating: True

- Issue History
Date Modified Username Field Change
2008-04-06 10:19 cfk New Issue
2008-04-06 10:19 cfk SVN Revision => r4113
2008-04-06 10:19 cfk Run Mode => Grid (1 Region per Sim)
2008-04-06 10:19 cfk Physics Engine => ODE
2008-04-06 10:19 cfk Environment => Mono / Linux32
2008-04-06 11:01 justincc Note Added: 0001415
2008-04-07 06:07 cfk Note Added: 0001420
2008-04-07 08:16 Teravus Relationship added related to 0000907
2008-04-07 08:22 Teravus Relationship added related to 0000899
2008-04-07 08:22 Teravus Relationship added related to 0000730
2008-04-07 08:22 Teravus Relationship added related to 0000804
2008-04-07 08:23 Teravus Relationship added related to 0000301
2008-04-07 08:23 Teravus Relationship added related to 0000189
2008-04-07 08:23 Teravus Relationship added related to 0000650
2008-04-07 08:23 Teravus Relationship added related to 0000609
2008-04-07 08:23 Teravus Relationship added related to 0000391
2008-04-07 08:24 Teravus Relationship added related to 0000183
2008-04-07 08:24 Teravus Relationship added related to 0000242
2008-04-07 08:24 Teravus Relationship added related to 0000196
2008-04-10 14:09 cfk Note Added: 0001472
2008-04-11 05:56 cfk Note Added: 0001484
2008-04-11 06:00 cfk Note Added: 0001485
2008-04-23 06:58 sdague Status new => assigned
2008-04-23 06:58 sdague Assigned To => sdague
2008-04-23 06:58 sdague Status assigned => resolved
2008-04-23 06:58 sdague Resolution open => fixed
2008-04-23 06:58 sdague Note Added: 0001659
2008-04-26 07:12 cfk Note Added: 0001725
2008-04-26 07:12 cfk Status resolved => feedback
2008-04-26 07:12 cfk Resolution fixed => reopened
2008-05-18 16:40 cfk Status feedback => closed
2008-05-18 16:40 cfk Resolution reopened => no change required

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