MapServer 4.6.0-beta2 64bit Perl/Mapscipt Problem

[Stephen Woodbridge]

http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=1374

Stephen Woodbridge wrote:
> Sean Gillies wrote:
> 
>> On Jun 3, 2005, at 8:11 AM, Stephen Woodbridge wrote:
>>
>>> Lowell,
>>>
>>> Thank you for the off-list post, it reminded me that I needed to post an
>>> update.
>>>
>>> I took Sean's advice to narrow down the problem by removing stuff from
>>> the mapfile. End result was the we quickly determined that the user did
>>> not have all the symbols installed on his system. This was a remote
>>> debugging using chat and email which as you can imagine is a little
>>> tedious. So we got is working and things are good. Thank you all for
>>> your help and suggestions they are greatly appreciated.
>>>
>>> Now back to your regular programming :)
>>>    -Steve W
>>
>>
>>
>> Steve, want to enter a bug in the tracker regarding the consequences 
>> of referring to an undefined symbol? MapServer should really raise an 
>> exception in this case instead of crashing.
> 
> 
> Yes, I will open a bug for this.
> 
> For the archives, The original error message from Perl Mapscript was:
> 
> *** glibc detected *** double free or corruption: 0x00000000012817c0 ***
> 
> mapscript::mapObj::new(/usr/lib/perl5/site_perl/5.8.5/x86_64-linux-thread-multi/mapscript.pm:1408): 
> 
> 
> and the problem ended up being that the symbol directory was missing and 
> it was having heartburn trying to access png symbol
> 
> We diagnosed the problem by moving to shp2img which reported:
> 
> loadSymbol(): Unable to access file. Parsing error near 
> (../markers/sm_square.png):(line 73) <br>
> 
> which lead me to check if the markers directory was loaded. It wasn't 
> and loading that directory solved the problem.
> 
> -Steve W.
>