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

[Snoopy Pfeffer]

I have experienced the same when MONO_THREADS_PER_CPU is set to a very high number. 500 works for me.

  Snoopy Pfeffer




________________________________
From: John Hopkin <opensim at jfhopkin.karoo.co.uk>
To: opensim-users at lists.berlios.de
Sent: Thursday, April 23, 2009 1:50:37 AM
Subject: [Opensim-users] Ubuntu and magic mini-trampolines (crash problem)

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/

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?
-- 
John Hopkin

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