[mapserver-dev] python-mapscript: generateSLD() segfaults

[Stephan Holl]

Dear mapServer-devs,

using Python-mapscript to write out SLDs for my layers I found out,
that some layers did not write an SLD and my script dies with a
segfault.

Using GDB I get this information from bt:

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb7fd36c0 (LWP 14112)]
0x00769878 in msStringConcatenate at plt ()
from /home/gis2/intevation/wms-migration/apps/lib/python2.4/site-packages/_mapscript.so
(gdb) bt #0  0x00769878 in msStringConcatenate at plt ()
from /home/gis2/intevation/wms-migration/apps/lib/python2.4/site-packages/_mapscript.so
#1  0x0083b7e6 in msSLDGenerateSLD ()
from /home/gis2/intevation/wms-migration/apps/lib/python2.4/site-packages/_mapscript.so
#2  0x007b141d in _wrap_layerObj_generateSLD (self=0x0,
args=0xb7f680ec) at mapscript_wrap.c:3717 #3  0x4f02645d in
PyCFunction_Call () from /usr/lib/libpython2.4.so.1.0 #4  0x4effbd57 in
PyObject_Call () from /usr/lib/libpython2.4.so.1.0 #5  0x4f05f1bc in
PyEval_EvalFrame () from /usr/lib/libpython2.4.so.1.0 #6  0x4f061c68 in
PyEval_EvalCodeEx () from /usr/lib/libpython2.4.so.1.0 #7  0x4f060426
in PyEval_EvalFrame () from /usr/lib/libpython2.4.so.1.0 #8  0x4f061c68
in PyEval_EvalCodeEx () from /usr/lib/libpython2.4.so.1.0 #9
0x4f061cf3 in PyEval_EvalCode () from /usr/lib/libpython2.4.so.1.0 #10
0x4f07e998 in ?? () from /usr/lib/libpython2.4.so.1.0 #11 0x4f0800a8 in
PyRun_SimpleFileExFlags () from /usr/lib/libpython2.4.so.1.0 #12
0x4f08078a in PyRun_AnyFileExFlags () from /usr/lib/libpython2.4.so.1.0
#13 0x4f087185 in Py_Main () from /usr/lib/libpython2.4.so.1.0 #14
0x08048582 in main ()

bt full gives this:
(gdb) bt full
#0  0x00769878 in msStringConcatenate at plt ()
from /home/gis2/intevation/wms-migration/apps/lib/python2.4/site-packages/_mapscript.so
No symbol table info available. #1  0x0083b7e6 in msSLDGenerateSLD ()
from /home/gis2/intevation/wms-migration/apps/lib/python2.4/site-packages/_mapscript.so
No symbol table info available. #2  0x007b141d in
_wrap_layerObj_generateSLD (self=0x0, args=0xb7f680ec) at
mapscript_wrap.c:3717 resultobj = (PyObject *) 0x0 arg1 = <value
optimized out> result = <value optimized out>
        argp1 = (void *) 0x94f5230
        res1 = <value optimized out>
        obj0 = (PyObject *) 0xb7ce764c
#3  0x4f02645d in PyCFunction_Call () from /usr/lib/libpython2.4.so.1.0

I am using MS 5.2.1 and python 2.4.3

The Layer it dies has 26 classes with Expressions like this:
EXPRESSION "EH        "

All this is on Oracle Spatial though.

Perhaps someone can give me a hint?

	Stephan

-- 
Stephan Holl <stephan.holl at intevation.de> | Tel.: +49 (0)541-33 508 3663
Intevation GmbH, Neuer Graben 17, 49074 OS  |  AG Osnabrück - HR B 18998
Geschäftsführer:  Frank Koormann, Bernhard Reiter, Dr. Jan-Oliver Wagner
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