Re: Heap Space error MCH6902

["Gary Kuznitz" <docfxit@xxxxxxxxxxx>]

Thanks David.  I found the problem.  

I ran a program on a V4R4 machine that was compiled on a V4R3 machine 
with a *TRGRLS of V3R2.  Once I re-compiled the program on the V4R4 
machine it ran fine.  It's an RPG program with no API relating to Heap 
storage.  I did try searching for an apar and found nothing.  

Thanks for trying to help.

Gary Kuznitz

Date sent:              Wed, 01 Dec 1999 15:06:20 -0700
From:                   "David Morris" <dmorris@plumcreek.com>
To:                     <MIDRANGE-L@midrange.com>
Subject:                Re: Heap Space error MCH6902
Send reply to:          MIDRANGE-L@midrange.com

> Gary,
> 
> It would be really helpful to know what the program was doing at the time
> the error was received, the type of program, and what programs are actually
> is sending/receiving the error.   You do have control over heap storage via
> APIs or through built in language support.  I have received CEE0810 when
> trying to deallocate heap storage that was not previously allocated.  That
> was the expected result.  This sounds more like a system program receiving
> an unexpected error.  
> 
> Have you tried searching for an APAR that references this message?
> 
> David Morris
> 
> 
> >>> docfxit@calwest.net 12/01/99 10:58AM >>>
> Hi,
> 
> I sent this out to the RPG400-L@midrange.com list and didn't get any 
> response.  I'm wondering if anyone on this list might have an idea and be
> able to give me some clue as to what to do.  
> 
> Sorry to the people that are on both lists and received this a second time.
> 
> I've never run into a heap space problem before.  I received this error
> while running a program.  I'm on V4R4.
> 
> Message ID . . . . . . :   MCH6902  Severity . . . . . . . :   40          
>  Message type . . . . . :   Escape                                   
> Message . . . . :   The requested heap space operation is invalid.         
> 
>  Cause . . . . . :   The requested heap space operation is invalid. The
>  heap space identifier is 0. The activation group mark is 21439. The
>  activation   group mark will be zero if the heap space is not associated
>  with an activation group. The error type is 2. The error type indicating
>  why the heap space request is invalid are defined as follows:             
>                     
> 
>       0001-Attempt to destroy the default heap space;                     
>       0002-Attempt to free or reallocate heap space storage that is not
>       allocated;   The heap space identifier and activation group mark 
> may not be valid for this error type;
>       0003-Access to the heap space is not allowed;
> 
> It sounds like heap space is not allocated.  Does anyone know what needs to
> be done to allocate heap space.  I thought the user didn't have any control
> over heap space.  
> 
> TIA,
> Gary Kuznitz
> 
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