[mapserver-users] Memoryproblem

[Tamas Szekeres]

Johan,

I wonder if this was a Win 2003 issue, since all of the windows
builder are running on Win 2003 at the buildbot and the build process
includes testing the getBytes function.

How is your mapfile looking like? Which mapserver version are you testing with.


Tamas



2008/8/13 Hallgren, Johan <johan.hallgren at logica.com>:
> Hello Tamas
>
> I'm glad that you supports me here:)
>
> We are getting closer to the problem:)
>
> Your code (getbytes.exe) runs fine on my own pc, but when I move the code to the server the problem starts.
>
> I made a new project with your cs-file and named it getbytemap, but it's actually the same code as the getbytes.exe. The output below doesn't actually write the error but the "GetBytes:" is the first part och the exception message. I can guess that the memory already is corrupt. When I do the same with the debugger you can see the watch output below.
>
> One difference I have in mind compared to other environments I have used is that this server have more power. In the task manager there is eight CPUs.
>
> The problem is deterministic with the getbyte-code.
>
> Console output
> +++++++++++++++++++++++++++++++++++
> C:\temp>getbytemap.exe D:\apps\GMSAgent\MapFiles\gims.map c:\temp\t.png
> Drawing map: 'GIMS' using imageObj.getBytes
> GetBytes:
>
> C:\temp>getbytemap.exe D:\apps\GMSAgent\MapFiles\gims.map c:\temp\t.png
> Drawing map: 'GIMS' using imageObj.getBytes
> Drawing map: 'GIMS' using imageObj.write
> GetBytes:
>
> C:\temp>getbytemap.exe D:\apps\GMSAgent\MapFiles\gims.map c:\temp\t.png
> Drawing map: 'GIMS' using imageObj.getBytes
> GetBytes:
>
> C:\temp>getbytemap.exe D:\apps\GMSAgent\MapFiles\gims.map c:\temp\t.png
> Drawing map: 'GIMS' using imageObj.getBytes
> GetBytes:
>
> C:\temp>getbytemap.exe D:\apps\GMSAgent\MapFiles\gims.map c:\temp\t.png
> Drawing map: 'GIMS' using imageObj.getBytes
> GetBytes:
> +++++++++++++++++++++++++++++++++++
>
> Watch output
> +++++++++++++++++++++++++++++++++++
> ex.Message      "Attempted to read or write protected memory. This is often an indication that other memory is corrupt."        string
> +++++++++++++++++++++++++++++++++++
>
> /Johan
>
> ___________________________________
>
>
> Johan Hallgren
>
>
> Logica
> Pelle Bergs backe 3
> Box 1938, 791 19 Falun
> Tel (och mobil): 023-547 46 (int: +46-2354746)
> johan.hallgren at logica.com
> http://www.logica.se
>
> -----Original Message-----
> From: Tamas Szekeres [mailto:szekerest at gmail.com]
> Sent: den 12 augusti 2008 16:48
> To: Hallgren, Johan
> Cc: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] Memoryproblem
>
> Johan,
>
> I haven't run into this problem yet. Do you able to run the getbytes console application in the /csharp directory?
> Is this issue deterministic or random? Do you have an example to reproduce it?
>
> Best regards,
>
> Tamas
>
>
> 2008/8/12 Hallgren, Johan <johan.hallgren at logica.com>:
>> Hello
>>
>>
>>
>> I have a major problem when using imgMapObj.getBytes().
>>
>> The memory will be corrupt. The problem doesn't occur when using the
>> save function.  I have not seen the problem on other servers so the
>> problem seams to be related to a specific server (Windows Server 2003 standard edition).
>>
>> Error msg
>>
>> ++++++++++++++++++++++
>>
>> Attempted to read or write protected memory. This is often an
>> indication that other memory is corrupt.
>>
>>    at OSGeo.MapServer.mapscriptPINVOKE.imageObj_getBytes(HandleRef
>> jarg1, SWIGByteArrayDelegate jarg2)
>>    at OSGeo.MapServer.imageObj.getBytes(SWIGByteArrayDelegate callback)
>>    at OSGeo.MapServer.imageObj.getBytes()
>>    at WMData.GIS.GMSAgent_WP.Libs.MapEngine.Get_Image(XmlDocument
>> xmlDoc, Boolean bRetImage) in
>> C:\Project\applications\GMS\GMSAgent_WP\Libs\MapEngine.cs:line 298
>> ++++++++++++++++++++++
>>
>> I use mapserver in c# and I have version 5.2.0.
>>
>>
>>
>> /Johan
>>
>> Johan Hallgren
>>
>> Logica
>> Pelle Bergs backe 3
>> Box 1938, 791 19 Falun
>> Tel (och mobil): 023-547 46 (int: +46-2354746)
>> johan.hallgren at logica.com http://www.logica.se
>>
>>
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>
>>
>
>