[mapserver-users] MapServer 4 vs 5 seg fault

[Liz Godwin]

I've noticed a similar problem with EXPRESSION statements, but
inconsistantly.  Are you running MS on Red Hat 5 by any chance?

On Tue, Apr 21, 2009 at 11:05 AM, Michael E Masscotte <masscotm at erau.edu>wrote:

> I've done some more investigation and found the seg fault happens with a
> call to msDrawRasterLayerGDAL() according to gdb. I also found what is
> tripping the core dump in the map file. I have an class with 'EXPRESSION
> ([pixel] > 0)' so mapserver does not draw black pixels. When I remove this,
> it works fine although it has the black pixels I don't want. So, it appears
> I'm doing something wrong with the EXPRESSION statement. Any one have any
> ideas how to fix this or workaround it? Again, what I find strange is that
> this works fine in MapServer 4.x but not 5.x.
>
> Thanks for your help,
> -Mike
>
>
>
> Michael E Masscotte wrote:
>
>  I have a php script that generates a png from geotiff tiles. The tiles are
>> indexed using gdaltindex. The php script works fine for MapServer 4.10.x but
>> seg faults for version 5.x.x. Does anyone know of any differences between
>> version 4 and 5 that would cause this? Could it be from an older version of
>> gdal that the tiles are being generated with? This happens in both RedHat
>> Linux 4 as well as on our Solaris machines. I can provide more details if
>> someone can point me in the right direction on where to look first for a
>> problem.
>>
>> Thanks is advance for any insight any one might provide!
>> -Mike
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>
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