STACK_OVERFLOW_EXCEPTION

STACK_OVERFLOW_EXCEPTION

[Carsten Schnedler]

Programming a simple E-Mail-System I recognized the following problem.
I am using gant3.14p on a WIN98-system and during programm-execution the
exception STORAGE-ERROR: EXCEPTION_STACK_OVERFLOW is raised. The debugger
gdb ends in the follwoing message:
 > Program received signal SIGSEGV, Segmentation fault.
 > 0x4041f6 in standard_types."=" (l=0x26b0758, r=(null))
 >    at E:/projekte/bibliothek/src/standard_types.adb:10
According to GNAT-Users's-Guide I tried to increase stack-size by
implementing
the variable GNAT_STACK_LIMIT in autoexec.bat which showed no result.
Checking the
recursion-depth showed a depth of 7.
Does anybody know, how to solve this problem?

Regards
Carsten Schnedler
CSchnedler@WEB.DE

Re: STACK_OVERFLOW_EXCEPTION

[David C. Hoos, Sr.]

----- Original Message ----- 
From: "Carsten Schnedler" <cschnedler@web.de>
Newsgroups: comp.lang.ada
To: <comp.lang.ada@ada.eu.org>
Sent: February 13, 2003 6:28 PM
Subject: STACK_OVERFLOW_EXCEPTION


> Programming a simple E-Mail-System I recognized the following problem.
> I am using gant3.14p on a WIN98-system and during programm-execution the
> exception STORAGE-ERROR: EXCEPTION_STACK_OVERFLOW is raised. The debugger
> gdb ends in the follwoing message:
>  > Program received signal SIGSEGV, Segmentation fault.
>  > 0x4041f6 in standard_types."=" (l=0x26b0758, r=(null))
>  >    at E:/projekte/bibliothek/src/standard_types.adb:10
> According to GNAT-Users's-Guide I tried to increase stack-size by
> implementing
> the variable GNAT_STACK_LIMIT in autoexec.bat which showed no result.
> Checking the
> recursion-depth showed a depth of 7.
> Does anybody know, how to solve this problem?
If the stack which overflowed is in an Ada task -- not the environment
{main) task -- then the problem is likely that you did not increase the
task's stack size by using the pragma Storage_Size in the
task declaration.

See the Ada Reference manual about the language-defined pragma and
attribute Storage_Size (for tasks). 
> 
> Regards
> Carsten Schnedler
> CSchnedler@WEB.DE
> 
> 
> 
> _______________________________________________
> comp.lang.ada mailing list
> comp.lang.ada@ada.eu.org
> http://ada.eu.org/mailman/listinfo/comp.lang.ada
> 
> 

Re: STACK_OVERFLOW_EXCEPTION

[Robert A Duff]

"Carsten Schnedler" <cschnedler@web.de> writes:

> Programming a simple E-Mail-System I recognized the following problem.
> I am using gant3.14p on a WIN98-system and during programm-execution the
> exception STORAGE-ERROR: EXCEPTION_STACK_OVERFLOW is raised. The debugger
> gdb ends in the follwoing message:
>  > Program received signal SIGSEGV, Segmentation fault.
>  > 0x4041f6 in standard_types."=" (l=0x26b0758, r=(null))
>  >    at E:/projekte/bibliothek/src/standard_types.adb:10
> According to GNAT-Users's-Guide I tried to increase stack-size by
> implementing
> the variable GNAT_STACK_LIMIT in autoexec.bat which showed no result.
> Checking the
> recursion-depth showed a depth of 7.
> Does anybody know, how to solve this problem?

GNAT sometimes says "storage error" when an erroneous program get a seg
fault for some reason that has nothing to do with stack overflow.
Look for dangling pointers, and other things like that.

- Bob