[fpc-devel] 2.0.3 AV's

[rstar at mnet-online.de]

Dipl.- Ing. Helmut Hartl wrote:
> Hi,
>
> I am currently managing ZEOS DBO Development. 
> We are testing ZEOS with MySQL 5 & Postgres 8.1 and FPC 2.0.2 
> which works pretty stable! We would like to release 
> "more stable" packages for lazarus and fpc in the next time.
>
> But due to the TDatetime issue in TDataset we wanted to 
> switch over to 2.0.3, as the TDatetime behaviour
> is fixed there (and remove the patches in ZEOS DBO).
>
> Our problem at the moment is that it seems that 2.0.3 is unstable
> with memory management as we get random errors throughout the testsuites . 
> Also strange errors with TCompressionStream are occurring, where I am not
> sure if they are follow up's from the AV's. 
> I'll report back if I can isolate them better .
>
> Are there some major changes between 2.0.2 and 2.0.3 fixes branch im Memory
> Management ?
>
> Following test program crashes under 2.0.3 and works under 2.0.3
> ("accidentially" discovered while playing with streams)
>
> program fpc203fish;
> {$mode objfpc}{$H+}
> uses  Classes;
> var    s:String;
>        i:integer;
> begin
>  s:='123123sdfjkysdjfklsdn3m,w45';
>  for i:=0 to 22 do begin
>   s:=s+s;
>   writeln(i);
>  end;
> end.  
>
> With Output:
> .
> 13
> 14
> 15
> An unhandled exception occurred at $08048573 :
> EAccessViolation : Access violation
>   $08048573  FORWARDS_IA32_3,  line 375 of
> /opt/fpc_svn/rtl/i386/fastmove.inc
>   $0804810A  main,  line 9 of fpc203fish.lpr
>
>
> Postet as BUG 4999
>
> Thanks,
>
> helmut
>
> _______________________________________________
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>
>
>   
try FastMM which is being used by Delphi.
http://sourceforge.net/project/showfiles.php?group_id=130631