SWIGMapscript: glibc detected malloc memory corruption
Umberto Nicoletti
umberto.nicoletti at GMAIL.COM
Mon Jun 27 04:45:23 EDT 2005
Next time please reply to the list too (the mailin list admin could
setup the list software so that it rewrites the reply-to field and
make the list work like all other lists I've subscribed to).
Comments inline.
On 6/27/05, Geo-IT GmbH <info at geo-it.com> wrote:
> Hi Umberto,
> Thanks for your reply.
> I am using SuSE 9.3 i686 (32 Bit).
> After some additional tests I found that among others it has something to do
> with the data and the projection of the data. Therefore I meanwhile managed to
> get the testprogram running (the one attached in my mail) but it is still
> falling over when trying to do the same thing from within a servlet.
What configure options did you use?
In particular have you enabled the thread locks with use-threads?
Notice: since 4.4.something it is not necessary to load the library
anymore as that is done in the mapscript.jar.
Regards,
Umberto
> That is
> not my first Java Servlet program using mapscript functions, so I could claim
> to be no novice to java mapscript. But up to and including mapserver version
> 4.0 I used the processTemplate, and processQueryTemplate methods to generate
> result HTML pages but this is no longer working since 4.2. (I reported this
> bug, but it seems to be more complex than expected to solve this). Therefore
> it's the first time to fetch the results of a query one after one and filling
> a template manually.
>
> I'll try the MALLOC_CHECK_ variable and read through the malloc man page.
>
> Mit freundlichen Gruessen/Kind regards
> Andreas Paukner-Ruzicka
> (Geschaeftsfuehrer/Managing director)
>
> **********************************************************
> Geo-IT GmbH - Geoinformatik, IT-Services
> Guggenberg 3, D-82380 Peissenberg
> Tel: 08803-498372, Fax: 08803-498373
> eMail: info at geo-it.com - Homepage: http://www.geo-it.com
> **********************************************************
>
>
> On Mon, June 27, 2005 9:47, Umberto Nicoletti said:
> > What distro are you using (this appears to be a detail too often forgotten) ?
> >
> > See if you have a MALLOC_CHECK_ env variable set and then read
> > malloc's man page.
> >
> > Regards,
> > Umberto
> >
> > On 6/26/05, Geo-IT GmbH <info at geo-it.com> wrote:
> >> Dear experts,
> >> When trying to fetch a shapeObj after a queryByPoint using the shapeindex
> >> and
> >> tileindex from the resultCache in a Java mapscript program I get the
> >> following
> >> error terminating the whole VM:
> >>
> >> *** glibc detected *** malloc(): memory corruption: 0x08314ed0 ***
> >> ./runshapetest40.sh: line 13: 26946 Aborted java ShapeObjTest40 $mapfile
> >> $layername
> >>
> >> The program was:
> >>
> >> // Standard imports
> >> import java.io.*;
> >> import java.util.*;
> >> import java.text.*;
> >> import edu.umn.gis.mapscript.*;
> >>
> >> public class ShapeObjTest {
> >>
> >> String mapFile = null;
> >> String layerName = null;
> >>
> >>
> >> static {
> >> try {
> >> System.loadLibrary("mapscript");
> >> System.out.println("Mapscript lib loaded");
> >> } catch (UnsatisfiedLinkError e) {
> >> e.printStackTrace();
> >> System.exit(1);
> >> }
> >> }
> >>
> >> public ShapeObjTest() {
> >> }
> >>
> >>
> >> protected static void log(String msg) {
> >> System.out.println(msg);
> >> }
> >> protected static void usage() {
> >> System.out.println("USAGE: ShapeObjTest <mapfile>
> >> <layername>");
> >> }
> >>
> >> public static void main (String args[] ) {
> >> if (args == null || args.length < 2) {
> >> usage();
> >> System.exit(1);
> >> }
> >> String mapFile = args[0];
> >> String layerName = args[1];
> >> try {
> >> log("Creating map");
> >> mapObj map = new mapObj(mapFile);
> >> layerObj l = map.getLayerByName(layerName);
> >> l.open();
> >> log("Fetching shapeObj shapeindex 1 tileindex -1");
> >> shape = l.getFeature(1,-1);
> >> l.close();
> >> log("Fetch successful");
> >> } catch (Exception ie) {
> >> ie.printStackTrace();
> >> System.exit(1);
> >> }
> >> }
> >> }
> >>
> >> The log shows:
> >> Mapscript lib loaded
> >> Creating map
> >> Fetching shapeObj shapeindex 1 tileindex -1
> >>
> >> Then the error appears on the console.
> >>
> >> I use mapserver 4.6.0.
> >>
> >> This is the mapfile: (It's the one from Itasca demo, but only with layer
> >> airports)
> >> MAP
> >> #
> >> # Start of map file
> >> #
> >> NAME "DEMO"
> >> STATUS ON
> >> EXTENT 388107.634400379 5203120.88405952 500896.339019834 5310243.30613897
> >> SIZE 600 600
> >> SHAPEPATH "data"
> >> IMAGECOLOR 255 255 255
> >> UNITS METERS
> >> # you may need to change this to match your MapServer build
> >> #IMAGETYPE PNG
> >> #
> >> # Projection definition, consult the PROJ.4 documentation for parameter
> >> discussion
> >> #
> >> PROJECTION
> >> "proj=utm"
> >> "ellps=GRS80"
> >> "zone=15"
> >> "north"
> >> "no_defs"
> >>
> >> # OR:
> >> #
> >> # "init=epsg:26915"
> >> END
> >> #
> >> # Start of web interface definition (including WMS enabling metadata)
> >> #
> >> WEB
> >> MINSCALE 1000
> >> MAXSCALE 1550000
> >> IMAGEPATH "/tmp"
> >> IMAGEURL "/tmp"
> >> HEADER "demo_header.html"
> >> FOOTER "demo_footer.html"
> >> TEMPLATE "demo.html"
> >> METADATA
> >> "WMS_TITLE" "UMN MapServer Itasca Demo"
> >> "WMS_ABSTRACT" "This is the UMN MapServer demonstration application
> >> for Itasca County located in north central Minnesota."
> >> "WMS_ACCESSCONSTRAINTS" "none"
> >> "WMS_ONLINERESOURCE"
> >> "http://localhost.localdomain/mapserver_demos/itasca/demo_init.html"
> >> "WMS_SRS" "EPSG:26915"
> >> END
> >> END
> >> #
> >> # Start of reference map
> >> #
> >> REFERENCE
> >> STATUS ON
> >> IMAGE "graphics/reference.gif"
> >> SIZE 120 120
> >> EXTENT 393234.393701263 5205405.16440722 495769.579718949
> >> 5307959.02579127
> >> COLOR -1 -1 -1
> >> OUTLINECOLOR 255 0 0
> >> END
> >> QUERYMAP
> >> STATUS ON
> >> SIZE 200 200
> >> COLOR 255 0 0
> >> STYLE HILITE
> >> END
> >> #
> >> # Start of legend
> >> #
> >> LEGEND
> >> STATUS ON
> >> KEYSIZE 18 12
> >> LABEL
> >> TYPE BITMAP
> >> SIZE MEDIUM
> >> COLOR 0 0 89
> >> END
> >> END
> >> #
> >> # Start of scalebar
> >> #
> >> SCALEBAR
> >> STATUS ON
> >> COLOR 0 102 102
> >> OUTLINECOLOR 102 255 0
> >> BACKGROUNDCOLOR 255 51 102
> >> IMAGECOLOR 255 255 255
> >> TRANSPARENT OFF
> >> UNITS MILES
> >> INTERVALS 1
> >> SIZE 80 2
> >> STYLE 1
> >> INTERLACE ON
> >> LABEL
> >> TYPE BITMAP
> >> SIZE MEDIUM
> >> COLOR 0 0 0
> >> END
> >> END
> >> #
> >> # Start of symbol definitions (we're only using a few)
> >> #
> >> SYMBOL
> >> NAME "circle"
> >> TYPE ELLIPSE
> >> FILLED TRUE
> >> POINTS
> >> 1 1
> >> END
> >> END
> >> #
> >> # Start of layer definitions
> >> #
> >> LAYER
> >> NAME "airports"
> >> STATUS OFF
> >> DATA "airports"
> >> TYPE POINT
> >> TOLERANCE 5
> >> HEADER "airports_header.html"
> >> FOOTER "airports_footer.html"
> >> TEMPLATE "ttt.html"
> >> METADATA
> >> "WMS_TITLE" "Airports"
> >> "WMS_ABSTRACT" "Airport runways for Itasca County."
> >> "WMS_SRS" "EPSG:26915"
> >> END
> >> CLASS
> >> NAME "Airports"
> >> SYMBOL "circle"
> >> COLOR 128 255 164
> >> SIZE 7
> >> TEMPLATE "airports.html"
> >> END
> >> END
> >>
> >>
> >>
> >> Any help would be greatly appreciated.
> >>
> >> Mit freundlichen Gruessen/Kind regards
> >> Andreas Paukner-Ruzicka
> >> (Geschaeftsfuehrer/Managing director)
> >>
> >> **********************************************************
> >> Geo-IT GmbH - Geoinformatik, IT-Services
> >> Guggenberg 3, D-82380 Peissenberg
> >> Tel: 08803-498372, Fax: 08803-498373
> >> eMail: info at geo-it.com - Homepage: http://www.geo-it.com
> >> **********************************************************
> >>
> >
>
>
>
More information about the mapserver-users
mailing list