0007895: Region crash with SIGSEGV.

(0030256)
smxy (reporter)
2016-05-01 21:36
edited on: 2016-05-02 05:37

With approximately 55 regions, I'm seeing this fairly regularly. Not sure what to do about it though.

(0030257)
zadark (reporter)
2016-05-02 03:00

@smxy. This issue is more pronounced with later Linux kernels. It also affects MS DotNet installations though less obvious.
If you would be prepared to edit (one liners) OpenSim source and confirm a fix I will pass you the edit requirements. There are only so many permutations of Linux I have access to and any additional support for the effectiveness of the change would be appreciated.
Once testing is completed I will issue a patch.

(0030258)
smxy (reporter)
2016-05-02 05:36

Later kernels, eh? I did just recently switch from CentOS 6 to 7, with a kernel change from 2.6.32 to 3.10.0 ...

Send me your proposed fix and let's see if it helps. :)

(0030263)
smxy (reporter)
2016-05-02 19:54

Just so it's documented, the fix you have me trying out is to comment out this line, in OpenSim/Framework/Monitoring/WorkManager.cs:

thread.Name = name;

and this line, in ThirdParty/SmartThreadPool/SmartThreadPool.cs:

workerThread.Name = string.Format("STP:{0}:{1}", Name, _threadCounter);

Issue History
Date Modified	Username	Field	Change
2016-04-26 20:08	smxy	New Issue
2016-05-01 21:36	smxy	Note Added: 0030256
2016-05-02 03:00	zadark	Note Added: 0030257
2016-05-02 05:36	smxy	Note Added: 0030258
2016-05-02 05:37	smxy	Note Edited: 0030256	View Revisions
2016-05-02 19:54	smxy	Note Added: 0030263
2016-05-11 16:44	smxy	Relationship added	related to 0007900

Notes
(0030256) smxy (reporter) 2016-05-01 21:36 edited on: 2016-05-02 05:37	With approximately 55 regions, I'm seeing this fairly regularly. Not sure what to do about it though.

(0030257) zadark (reporter) 2016-05-02 03:00	@smxy. This issue is more pronounced with later Linux kernels. It also affects MS DotNet installations though less obvious. If you would be prepared to edit (one liners) OpenSim source and confirm a fix I will pass you the edit requirements. There are only so many permutations of Linux I have access to and any additional support for the effectiveness of the change would be appreciated. Once testing is completed I will issue a patch.

(0030258) smxy (reporter) 2016-05-02 05:36	Later kernels, eh? I did just recently switch from CentOS 6 to 7, with a kernel change from 2.6.32 to 3.10.0 ... Send me your proposed fix and let's see if it helps. :)

(0030263) smxy (reporter) 2016-05-02 19:54	Just so it's documented, the fix you have me trying out is to comment out this line, in OpenSim/Framework/Monitoring/WorkManager.cs: thread.Name = name; and this line, in ThirdParty/SmartThreadPool/SmartThreadPool.cs: workerThread.Name = string.Format("STP:{0}:{1}", Name, _threadCounter);