[Mono-dev] Mono runtime segfault

Lluis Sanchez lluis at ximian.com
Tue Aug 23 09:56:14 EDT 2005


El dt 23 de 08 del 2005 a les 08:33 -0500, en/na David Carr va escriure:
> Feelite et at,
> 
> Thanks for the help with my problem.  Looks like I have a bit more
> learning to do...
> Should I file a bug report indicating that a StackOverflowException
> should be thrown in this situation?

Please don't, this is a known issue which has already been reported
multiple times.

> 
> Thanks for your time,
> David Carr
> 
> feelite qiu wrote:
> 
> > hi David
> >
> > the code snippet
> >
> >    int var
> >    {
> >    get { return var; }
> >    set { var = value; }
> >    }
> >
> >
> > creates an infinite loop as properties are internally implemented as
> > methods. So when you instantiate the object,
> >
> >  Crash c = new Crash(10);
> >
> > This chain of action is what I understand
> >
> > new Crash(10) -> var = 10; -> set { var = 10; } ->  get { return var;
> > } ->  get { return var; } ->...
> >
> > the error lies in the fact that your property var does not refer to an
> > underlying field. You can try
> >
> > int Var;
> >  int var
> >    {
> >    get { return Var; }
> >    set { Var = value; }
> >    }
> >
> >
> > regards
> > feelite
> >
> > On 8/23/05, *David Carr* <dc at dcarr.org <mailto:dc at dcarr.org>> wrote:
> >
> >     I'm getting an unexpected segfault running the code below:  Forgive me
> >     if its a silly mistake on my part.
> >
> >     Thanks for any help,
> >     David Carr
> >
> >     david at Cadmium ~/Prog/c#/gcross $ mono Crash.exe
> >     Segmentation fault
> >
> >     Listing for Crash.cs:
> >     public class Crash
> >     {
> >         int var
> >         {
> >         get { return var; }
> >         set { var = value; }
> >         }
> >
> >         public Crash(int i)
> >         {
> >         var = i;
> >         }
> >
> >         public static void Main()
> >         {
> >         Crash c = new Crash(10);
> >         }
> >
> >     }
> >
> >     mono --version
> >     Mono JIT compiler version 1.1.8.3 <http://1.1.8.3>, (C) 2002-2005
> >     Novell, Inc and
> >     Contributors. www.mono-project.com <http://www.mono-project.com>
> >             TLS:           __thread
> >             GC:            Included Boehm (with typed GC)
> >             SIGSEGV      : normal
> >             Globalization: normal
> >
> >     compiled from source with:
> >     gcc --version
> >     gcc (GCC) 3.3.5-20050130 (Gentoo Linux 3.3.5.20050130-r1,
> >     ssp-3.3.5.20050130-1 , pie-8.7.7.1)
> >     Copyright (C) 2003 Free Software Foundation, Inc.
> >     This is free software; see the source for copying
> >     conditions.  There is NO
> >     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> >     PURPOSE.
> >     _______________________________________________
> >     Mono-devel-list mailing list
> >     Mono-devel-list at lists.ximian.com
> >     <mailto:Mono-devel-list at lists.ximian.com>
> >     http://lists.ximian.com/mailman/listinfo/mono-devel-list
> >
> >
> >------------------------------------------------------------------------
> >
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> >  
> >
> 
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