[mapserver-users] I: Apache crash using Mapserver with big mapfile(about 2500 lines)

[ritesh ambastha]

Hey,

Larger size of mapfile is not the culprit over here. I have used mapfile of
more than 20K lines. Issue is something else. I don't know much about it but
it seems like you have a glibc version conflict on your box. But, I am sure
and 100% confident that mapfile size is not an issue.

When you get warnings like "glibc detected malloc()/free()/double", they
indicate that the heap has been corrupted. One work around is to use
DieHard, which replaces your memory allocator with one that is unaffected by
most of these errors (www.diehard-software.org). 

Note: "I dont work for DieHard. I just got some reference of it on web"

Regards,
Ritesh Ambastha


Edgardo Ghibaudo wrote:
> 
> Steve,
>  
> I compiled mapserver with -enable-debug option.
> Then I launched shp2img in the following way:
> ./shp2img -all_debug 5 -m /opt/fgs/apps/mapservergeo/map/at7_2_3.map
> [Fri May  8 10:45:49 2009].96896 msDrawRasterLayerLow(Sfumo): entering.
> [Fri May  8 10:45:49 2009].105123 msDrawGDAL(): src=704,474,913,1009,
> dst=0,0,470,520
> [Fri May  8 10:45:49 2009].105479 msDrawGDAL(): red,green,blue,alpha bands
> = 1,2,3,0
> [Fri May  8 10:45:49 2009].277761 msDrawMap(): Layer 0 (Sfumo), 0.181s
> [Fri May  8 10:45:49 2009].288732 msDrawMap(): Layer 7 (Edificato), 0.011s
> *** glibc detected *** free(): invalid next size (fast): 0x0846d138 ***
> Aborted
>  
> Edgardo
> -----Messaggio originale-----
> Da: Steve Lime [mailto:Steve.Lime at dnr.state.mn.us] 
> Inviato: giovedì 7 maggio 2009 19.29
> A: 'mapserver-users at lists.osgeo.org'; Edgardo Ghibaudo
> Oggetto: Re: [mapserver-users] Apache crash using Mapserver with big
> mapfile(about 2500 lines)
>  
> Have you tried running through shp2img independently of MapLab to see if
> it's a problem with MapServer or
> MapLab specifically?
>  
> Steve
>  
>  
> 
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