[Opensim-users] Ubuntu and magic mini-trampolines (crash problem)

[Dr Scofield]

John Hopkin wrote:
> I've just upgraded Mono from 2.1 to 2.2 under Ubuntu Hardy, using Dr
> Scofield's script from here:
> 
> http://xyzzyxyzzy.net/2009/02/17/updated-mono-build-script-mono-22/

i've found that 2.2 has major problems and have since gone back to 2.0.1.

i'll add a comment to the blog, sorry about not doing it earlier.

	DrS/dirk
> 
> and all went smoothly with that.
> 
> But now, when I run OpenSim.exe, it loads OK at first, but then I get
> the error:
> 
> <start paste>
> Region (root) # 0x18 0x0 0x0 0x55 0x8b 0xec 0x57 0x56 0x83 0xec 0x20
> 0x8b 0x75 0x8 0x83 0xec 0x8 0x56 0x68 0x10 0x75 0xe8 0x9c 0x8b 0x5
> 0x10 0x75 0xe8 0x9c 0xff 0x50 0x34 
> **
> ERROR:mini-trampolines.c:122:mono_magic_trampoline: assertion failed:
> (vt)
> Stacktrace:
> 
>   at log4net.LogManager.WrapLogger (log4net.Core.ILogger) <0xffffffff>
>   at log4net.LogManager.WrapLogger (log4net.Core.ILogger) <0x0001d>
> <end paste>
> 
> and a long stacktrace.  The server crashes, of course.  Presumably,
> the references to magic mini-trampolines are within the code; I don't
> have any scripts or objects that I'm aware of like that.
> 
> Vital stats:
> 
> * OpenSim revision 9205 (binary package from OSGrid)
> * Ubuntu Intrepid, kernel 2.6.27-11-generic
> * Mono run with MONO_THREADS_PER_CPU set to 2000
> * 7 regions run by one OpenSim.exe
> *  P4/3.6GHz, 2GB RAM, more than adequate (or were under Mono 2.1)
> * UGAIM through OSGrid
> * MySQL 14.12
> 
> I'm completely at a loss as to what could be causing this.  Does
> anyone have any ideas?


-- 
dr dirk husemann ---- virtual worlds research ---- ibm zurich research lab
SL: dr scofield ---- drscofield at xyzzyxyzzy.net ---- http://xyzzyxyzzy.net/
RL: hud at zurich.ibm.com - +41 44 724 8573 - http://www.zurich.ibm.com/~hud/