Mono Runtime crashes when trying to emit opcode

[Dylan Borg]

Binary package hint: mono-devel

When I tryy to use ILGenerator.Emit the Mono runtime fails saying there is an assertion fail in method-to-ir.c.

Here is a console extract:
dylan@ubuntu:/media/MOBEXTHDD/Code/dylannet$ mono ./compiler/dnc.exe
firstapp.txt
dylan.NET Compiler v. 11.2.4 for Microsoft (R) .NET Framework (R) v. 3.5 SP1
                           and Novell Mono v. 2.6.7 /v. 2.10
Copyright (C) Dylan Borg 2010
Now Lexing: firstapp.txt...Done.
Now Parsing: firstapp.txt...Done.
Referencing Assembly: compiler/mscorlib.dll
Referencing Assembly: compiler/System.dll
Referencing Assembly: compiler/System.Core.dll
Referencing Assembly: compiler/System.Data.dll
Referencing Assembly: compiler/System.Data.DataSetExtensions.dll
Referencing Assembly: compiler/System.Xml.dll
Referencing Assembly: compiler/System.Xml.Linq.dll
Referencing Assembly: compiler/System.Windows.Forms.dll
Referencing Assembly: compiler/Microsoft.VisualBasic.dll
Importing Namespace: Microsoft.VisualBasic
Importing Namespace: System
Importing Namespace: System.Reflection
Importing Namespace: System.Collections
Importing Namespace: System.Collections.Generic
Importing Namespace: System.Data
Importing Namespace: System.Diagnostics
Importing Namespace: System.Linq
Importing Namespace: System.Xml
Importing Namespace: System.Xml.Linq
Importing Namespace: System.Windows.Forms
Beginning Assembly: firstappg2
Adding Class: firstappg2.Module1
Adding Method: main
**
ERROR:method-to-ir.c:11047:mono_spill_global_vars: assertion failed:
(store_opcode != OP_STOREV_MEMBASE)
Stacktrace:

  at dylan.NET.Reflection.ILEmitter.EmitRet () <0xffffffff>
  at dylan.NET.Reflection.ILEmitter.EmitRet () <0x00017>
  at dylan.NET.Tokenizer.CodeGen.StmtReader.Read
(dylan.NET.Tokenizer.AST.Stmts.Stmt) <0x00cf8>
  at dylan.NET.Tokenizer.CodeGen.CodeGenerator.EmitMSIL
(dylan.NET.Tokenizer.AST.Stmts.StmtSet) <0x00082>
  at dylan.NET.Compiler.Module1.main (string[]) <0x00132>
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object
(object,intptr,intptr,intptr) <0x00043>

Native stacktrace:

    mono() [0x80d4d0b]
    [0x44640c]
    /lib/libc.so.6(abort+0x182) [0x14ce42]
    /lib/libglib-2.0.so.0(g_assertion_message+0x15f) [0x7224af]
    /lib/libglib-2.0.so.0(+0x65aed) [0x722aed]
    mono() [0x806862b]
    mono() [0x8060088]
    mono() [0x80606bf]
    mono() [0x806123e]
    mono() [0x80d8b4e]
    [0x945066]
    [0x2d2341]
    [0x2d15ab]
    [0x33a2db]
    [0x33a384]
    mono() [0x8061328]
    mono(mono_runtime_invoke+0x40) [0x813c890]
    mono(mono_runtime_exec_main+0xde) [0x81403de]
    mono(mono_runtime_run_main+0x112) [0x81406e2]
    mono(mono_main+0x1679) [0x80b2f99]
    mono() [0x8059385]
    /lib/libc.so.6(__libc_start_main+0xe7) [0x135ce7]
    mono() [0x80592c1]

Debug info from gdb:

Could not attach to process. If your uid matches the uid of the target
process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
again as the root user. For more details, see /etc/sysctl.d/10-ptrace.conf
ptrace: Operation not permitted.

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted
dylan@ubuntu:/media/MOBEXTHDD/Code/dylannet$

1.Using Ubuntu 10.10 Maverick Meerkat
2.Using mono-devel 2.6.7-3ubuntu1
3.I expected all opcodes to be emitted without crashes(all works fine on MS .NET)
4.The system crashed because of an assertion fail.

[Dylan Borg (borgdylan)]

THe error was in the IL to be run.

[Dylan Borg (borgdylan)]

There was an error in InstructionHelper class.