Mapserver crashes while antialiasing

[Torsten Weber]

Hi all,

I'm using mapserver 4.6.2 and 4.8.1 on SuSE 9.2 and 10.0 with php_mapscript. 
I've compiled both mapservers on both machines for using oracle to get the 
spatial information. If I use 8Bit coloring all things work fine (but no 
antialiasing). Within RGB mode the server gets segmentation faults. But 
sometimes it works one or two times (don't know why).

Versions:
 mapserver: 4.6.2 + 4.8.1
 SuSE Linux: 9.2 + 10.0
 php:	4.3.8 + 4.4.0
 oracle instantclient 10g
 apache: 2.0.50 + 2.0.54
 gd: 2.0.28 + 2.0.32

I'm using antialiasing on line and polygon Layers only. But there are raster 
layers also.

Here is an example for both antialiased layers:

Polygon Layer using data from shape files.
  LAYER
    NAME "Gemeinden"
    PROJECTION
     "init=epsg:31467"
    END
    METADATA
      "DESCRIPTION" "Gemeinden"
      "RESULT_FIELDS"    "Name"
      "RESULT_HEADERS"    "Name"
			"SELECTABLE" "false"
    END
    DATA "/srv/www/htdocs/geodata/Admin_Grenzen/Gemeinden"
    TYPE POLYGON
    TRANSPARENCY 50
    CLASS
      NAME "Gemeinden"
      TEMPLATE "void"
      STYLE
        COLOR 180 180 0
        OUTLINECOLOR 90 90 0
        SIZE 3
        ANTIALIAS TRUE
      END
    END
  END # Layer

Line Layer using oracle spatial data.
	LAYER
		NAME "kanten"
		PROJECTION
			"init=epsg:31467"
		END
    		DEBUG ON
		CONNECTION "user/pass at oradb"
		CONNECTIONTYPE oraclespatial
		DATA "GEOLOC FROM (SELECT GEOLOC, ID, BEZEICHNUNG, ART, TYP FROM 
STRECKEVIEW) USING UNIQUE ID"
		TYPE LINE
		SYMBOLSCALE 20000.0
		METADATA
			"DESCRIPTION"    "Straßen"
			"RESULT_FIELDS"    "ID,BEZEICHNUNG,ART"
			"RESULT_HEADERS"    "Nummer,Name,Typ"
			"SELECTABLE" "true"
			"LAYERDESC"		"Straßen"
		END	# Metadata 
		CLASS
			NAME "Autobahnen"
			TEMPLATE "void"
			EXPRESSION ([TYP]=21)
			STYLE
				SYMBOL "lstandard"
				COLOR 0 0 200
				SIZE 7
				ANTIALIAS TRUE
				MINSIZE 7
				MAXSIZE 18
			END
			STYLE
				SYMBOL "lstandard"
				COLOR 255 255 255
				SIZE 4
				ANTIALIAS TRUE
				MINSIZE 4
				MAXSIZE 12
			END
			STYLE
				SYMBOL "lstandard"
				COLOR 0 0 200
				SIZE 2
				MINSIZE 2
				MAXSIZE 5
				ANTIALIAS TRUE
			END
			LABEL
				ANGLE AUTO
				COLOR 256 0 0
				POSITION AUTO
				SIZE LARGE
			        TYPE truetype
				FONT "verdana"
			END #LABEL
		END # Class
		CLASS
			NAME "Bundesstraßen"
			TEMPLATE "void"
			EXPRESSION ([TYP]=22)
			#MAXSCALE 250000.0
			STYLE
				SYMBOL "lstandard"
				COLOR 50 50 50
				SIZE 5
				MINSIZE 5
				MAXSIZE 15
				ANTIALIAS TRUE
			END
			STYLE
				SYMBOL "lstandard"
				COLOR 255 255 0
				SIZE 2
				MINSIZE 2
				MAXSIZE 10
				ANTIALIAS TRUE
			END
		END # Class
		CLASS
			NAME "Landesstraßen"
			TEMPLATE "void"
			EXPRESSION ([TYP]=23)
			MAXSCALE 250000.0
			STYLE
				SYMBOL "lstandard"
				COLOR 50 50 50
				SIZE 5
				MINSIZE 5
				MAXSIZE 15
				ANTIALIAS TRUE
			END
			STYLE
				SYMBOL "lstandard"
				COLOR 250 250 250
				SIZE 2
				MINSIZE 2
				MAXSIZE 10
				ANTIALIAS TRUE
			END
		END # Class
		CLASS
			NAME "Kreisstraßen"
			TEMPLATE "void"
			EXPRESSION ([TYP]=24)
			MAXSCALE 75000.0
			STYLE
				SYMBOL "lstandard"
				COLOR 50 50 50
				SIZE 3
				MINSIZE 3
				MAXSIZE 10
				ANTIALIAS TRUE
			END
			STYLE
				SYMBOL "lstandard"
				COLOR 250 250 250
				SIZE 1
				MINSIZE 1
				MAXSIZE 6
				ANTIALIAS TRUE
			END
		END # Class
		CLASS
			NAME "Sonstige"
			TEMPLATE "void"
			EXPRESSION ([TYP]<21 OR [TYP]>24)
			MAXSCALE 50000.0
			STYLE
				SYMBOL "lstandard"
				COLOR 100 100 100
				SIZE 1
				#ANTIALIAS
				MINSIZE 1
				MAXSIZE 10
				ANTIALIAS TRUE
			END
		END # Class
	END # Layer

Used outputformat:
	OUTPUTFORMAT
	  NAME pngrgb
      	  DRIVER "GD/PNG"
	  MIMETYPE "image/png"
	  IMAGEMODE RGB
	  FORMATOPTION  INTERLACE=OFF
	  TRANSPARENT OFF
	END
It doesn't matter if I use GIF or jpeg instead.

Is anyone out there, who could help me?

Many thanks and best regards

Torsten