[ubuntu-mono] [Bug 582374] [NEW] Mono debugger segfault on "start"

[Francois Trahan]

Public bug reported:

Binary package hint: mono-debugger

Before we start, here's some details :

***Sample Code (test.cs) :***
class main
{
    static void Main(string[] args)
    {
	System.Console.WriteLine("coucou");
    }
}

***Compile command :***
gmcs -debug+ test.cs

***Test 1 : mono.exe OK***
$ mono test.exe
coucou

Running the executable works just fine...  When trying to debug, mdb
systematically segfaults...

Here's my debug session :
$ mdb test.exe
Mono Debugger
(mdb) start
Starting program: test.exe 
Thread @1 stopped at #0: 0x7fff0225e5d1.
0x7fff0225e5d1	add    %al,(%rax)
(mdb) s
Thread @1 received signal 11 at #0: 0x7fff0225e5d1.
0x7fff0225e5d1	add    %al,(%rax)
(mdb) 

In other words, mdb segfaults before running my code.

On another machine (same setup) mdb works fine on the same files
(joined).

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mono-debugger 2.4.3-2
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Tue May 18 12:56:09 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_CA.utf8
 SHELL=/bin/bash
SourcePackage: mono-debugger

** Affects: mono-debugger (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

-- 
Mono debugger segfault on "start"
https://bugs.launchpad.net/bugs/582374
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Status in “mono-debugger” package in Ubuntu: New

Bug description:
Binary package hint: mono-debugger

Before we start, here's some details :

***Sample Code (test.cs) :***
class main
{
    static void Main(string[] args)
    {
	System.Console.WriteLine("coucou");
    }
}

***Compile command :***
gmcs -debug+ test.cs

***Test 1 : mono.exe OK***
$ mono test.exe
coucou

Running the executable works just fine...  When trying to debug, mdb systematically segfaults...

Here's my debug session :
$ mdb test.exe
Mono Debugger
(mdb) start
Starting program: test.exe 
Thread @1 stopped at #0: 0x7fff0225e5d1.
0x7fff0225e5d1	add    %al,(%rax)
(mdb) s
Thread @1 received signal 11 at #0: 0x7fff0225e5d1.
0x7fff0225e5d1	add    %al,(%rax)
(mdb) 

In other words, mdb segfaults before running my code.

On another machine (same setup) mdb works fine on the same files (joined).

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mono-debugger 2.4.3-2
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
Architecture: amd64
Date: Tue May 18 12:56:09 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_CA.utf8
 SHELL=/bin/bash
SourcePackage: mono-debugger