No subject


Fri Feb 8 15:06:04 EST 2008


suggested that SegFault problem could be traced to mapserver's shp2img, so
we tried shp2img and did get that segfault crash. When we tried using gdb to
'debug' the shp2img util with the same mapfile, we found it crashed on
tif_read, here is the message before it died,

##########################################################################
(gdb) run -m /var/www/html/zoom2it_mapserver/map_file/test_wms.map
Starting program: /root/build/mapserver-4.0.1/shp2img
-m/var/www/html/zoom2it_mapserver/map_file/test_wms.map
(no debugging symbols found)...
(no debugging symbols found)...
(no debugging symbols found)...
(no debugging symbols found)...
(no debugging symbols found)...[Thread debugging using libthread_dbenabled]
[New Thread -1084655424 (LWP 5180)]
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1084655424 (LWP 5180)]0x00a036ad in TIFFFillStrip
(tif=0x8863628, strip=1) at tif_read.c:252252
bytecount = td->td_stripbytecount[strip];
##########################################################################

I hope i have explained my problem clearly. Any help/hint will be greatly
appreciated! By the way, almost all mapserver versions above 4.0.1 have been
triedwith the same configs as below and failed exactly the same way.

Here is my mapserver config:
##########################################################################
MapServer version 4.0.1 OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP
OUTPUT=PDFOUTPUT=SWF SUPPORTS=PROJ SUPPORTS=FREETYPE
SUPPORTS=WMS_SERVERSUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
SUPPORTS=WFS_CLIENT INPUT=JPEGINPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
#####################################################################################

And here is the wms map file:(without vector layers)
#####################################################################################
MAP
        NAME DURHAM_WMS_TEST
        SIZE 490 440
        STATUS ON
        EXTENT 523522 4824701 712474 4963303  #simcoe
        UNITS METERS
        SHAPEPATH "/var/www/data/zoom2it_mapserver/"

        FONTSET "/var/www/html/zoom2it_mapserver/map_symbols/fonts.txt"
        SYMBOLSET "/var/www/html/zoom2it_mapserver/map_symbols/symbols.sym"
        IMAGECOLOR 255 255 255
        IMAGETYPE  PNG24


        PROJECTION
                "init=EPSG:26917"
        END


        # NOT WORKING
        #OUTPUTFORMAT #not sure if this is really necessary
        #       NAME GTiff
        #       DRIVER "GDAL/GTiff"
        #       MIMETYPE "image/tiff"
        #       IMAGEMODE RGB
        #       EXTENSION "tif"
        #       #TRANSPARENT FALSE
        #END

        WEB
                MINSCALE 1500
                MAXSCALE 700001

                TEMPLATE durham_data_wms.html
                IMAGEPATH "/var/www/html/zoom2it_mapserver/map_images/"
                IMAGEURL "map_images/"

                METADATA
                        WMS_TITLE "durham data served via wms"
                        WMS_ABSTRACT "WMS server compliant data service for
durham area"
                        WMS_ACCESSCONSTRAINTS none
                        WMS_ONLINERESOURCE
"http://pc82.jdbarnes.com/cgi-bin/wms_map"
                        WMS_SRS "EPSG:26917"
                END
        END

        #LAYER DEFINITIONS ---------------------------------------------
        LAYER # testing tiff
                NAME durham_tile
                STATUS ON
                DATA
/var/www/data/zoom2it_mapserver/256/simcoe_10k_6m/ORTH175640485302002FBS.tif"
                TYPE RASTER

                METADATA
                        WMS_TITLE "Durham Ortho Photo(50cm - Tile)"
                        WMS_ABSTRACT "ortho_lro_40_50cm_wms test tile"
                        #WMS_SRS "epsg:26917"
                END

                PROJECTION
                        "init=EPSG:26917"
                END
        END
END
#####################################################################################



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