mono-sgen crashed with SIGABRT

[Samuel Greenway]

Apparently there is a known bug with mono and newer linux kernels.

Please see:

https://bugzilla.xamarin.com/show_bug.cgi?id=24755

https://bugzilla.novell.com/show_bug.cgi?id=906714

http://opensimulator.org/mantis/view.php?id=7519

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: mono-runtime-sgen 3.2.8+dfsg-4ubuntu1.1
ProcVersionSignature: Ubuntu 3.13.0-49.83-generic 3.13.11-ckt17
Uname: Linux 3.13.0-49-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.10
Architecture: amd64
CrashCounter: 1
Date: Wed Apr 22 21:20:26 2015
ExecutablePath: /usr/bin/mono-sgen
InstallationDate: Installed on 2013-04-25 (727 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
LocalLibraries: /media/Data/ProgramFiles/OSGRID9030/bin/lib64/libBulletSim.so
ProcCmdline: mono OpenSim.exe
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/sh
Signal: 6
SourcePackage: mono
StacktraceTop:
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Title: mono-sgen crashed with SIGABRT
UpgradeStatus: Upgraded to trusty on 2014-03-27 (391 days ago)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
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[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate a useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

no debug symbol package found for libsqlite0
no debug symbol package found for libjbig0

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!

[Samuel Greenway (greenwaysw)]

I did an sudo apt-get update; sudo apt-get upgrade -y before then cleared the /var/crash directory, and restarted apport before running the programs.

A conflict between newer kernel versions and the mono project are causing this issue with the OpenSim project. Reports have been filed with SuSe, since they have a more recent kernel than Ubuntu, and was noticed first on that platform, as well as with the mono project itself.

Opensim is a virtual world project, similar to Secondlife, that has received supported by Intel Corp. and the a US military agency (MOSES), UCIrvine and other groups.

http://opensimulator.org/
http://militarymetaverse.org/
https://software.intel.com/en-us/articles/opensimulator-virtual-world-server-case-study-part-1
http://ivecg.uci.edu/category/in-the-news/

[Taloth Saldono (talothsaldono)]

Interesting that I didn't find this bugreport earlier.

Samuel, can you look at https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1450584 to see if that's the problem OpenSim experiences? If so, try compile the master-next branch of trusty to see if it fixes the issue for OpenSim.

Originally I thought this issue only occurred on VMs, but that might be incorrect.
Also if Fedora also experiences it then someone will have to pick up their kernel sources, patch it, build it and test if those commits fix it on Fedora.

[Samuel Greenway (greenwaysw)]

This is a duplicate of https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1450584 and appears to be fixed now.