At 13:37 Uhr -0600 31.10.1997, ole mengshoel wrote:
>
>
>Hi,
>
>I get the following error message when running my ACL for Windows v
>version 3.0 with a "large" problem:
>
>  Error - Lisp.exe - Application Error
>
>    The instruction at "0x00407540"
>    references memory at "0xff...ffa".
>    The memory could not be "read".
>
>  Click on OK to terminate the application.
>  Click on CANCEL to debug the application.
>
>Any idea on how to avoid or debug what is going on here would
>be appreciated!
>

Which Windows version you are using?
Beneath a possible memory management error in ACL you might try to extend
the heap of the lisp.exe.
Although windows applications grow in memory with increasing memory
requirements, ACL has a heap for the different kind of memory allocations.
There is a file in your allegro directory called "lisp.ini" or "init.lsp"
(sorry, I'have my windoze box switched off ;)) , so I cannot confirm my
statement!). You can edit it with any text editor. It's a normal
windows-like configuration file with several items. One of them is named
"heap". I think the default is 8 (8MB). Try to set multiples of 8 (16,24),
if you have enough REAL memory.

Another good idea is to update to 3.0.x as theses versions are more stable.

good luck,

- stefan

______________________________________________________________________________
Stefan K. Bamberger                   email: <informatik.uni-wuerzburg.de at bambi>
Lehrstuhl fuer Kuenstliche Intelligenz                  fax : ++49 931 7056120
Allesgrundweg 12, 97218 Gerbrunn                      voice : ++49 931 7056118
                         Universitaet Wuerzburg, Germany
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D