[ZOO-Discuss] Execute request returns SIGSEGV message from the zoo kernel for Python

[Gérald Fenoy]

Hi Armin,
I did the following steps and everything goes right.

1) Download the SVN source tree
2) compile cgic206 from the SVN source tree thirds  directory
3) go into zoo-kernel directory and run autoconf
4) run : ./configure --with-python 
5) create a directory zoo-dist
6) copy zoo_loader.cgi and main.cfg in zoo-dist
7) copy zoo-services/hello-py/test_service.py and 
zoo-services/hello-py/cgi-env/HelloPy.zcfg in zoo-dist
8) from the zoo-dist directory, I run the following :
./zoo_loader.cgi "request=Execute&service=WPS&version=1.0.0&Identifier=HelloPy&DataInputs=a=Demo"

I get the hello world message included in the ExecuteResponse.

Please can you try to reproduce the steps above on your platform and
let me know if the error still occurs ?

Hope to hear from you,
Best


Le 22 mars 2011 à 14:16, Armin Burger a écrit :

> Nick
> 
> I tried the SVN from today, still a segfault. I tried using GDB and
> the only debug info I get is:
> 
> Core was generated by `./zoo_loader.cgi
> Service=WPS&Request=Execute&Version=1.0.0&Identifier=HelloPy&D'.
> Program terminated with signal 11, Segmentation fault.
> #0  0xb70c4a61 in fileno_unlocked () from /lib/tls/libc.so.6
> (gdb) bt
> #0  0xb70c4a61 in fileno_unlocked () from /lib/tls/libc.so.6
> #1  0xb73ef188 in FCGI_fileno () from /usr/lib/libfcgi.so.0
> #2  0x0804b039 in cgiMain () at zoo_loader.c:97
> #3  0x080602b3 in main (argc=2, argv=0xbfd81284) at cgic.c:287
> 
> 
> armin
> 
> 
> On Thu, Mar 17, 2011 at 3:42 PM, nicolas bozon <nicolas.bozon at gmail.com> wrote:
>> Hi Armin,
>> 
>> You are right, it seems we get a problem, as we could reproduce the segfault
>> this morning before going to the code sprint.
>> We'll try to solve the problem with gerald today and we'lll keep you
>> informed.
>> 
>> Best,
>> 
>> Nick
>> 
>> 2011/3/14 Armin Burger <armin.burger at gmail.com>
>>> 
>>> Hi all
>>> 
>>> after successfully compilation and installation of the zoo_loader.cgi
>>> the "GetCapabilities" and "Describe Process" work fine. But as soon as
>>> I try to run the Excecute request  using the simple HelloPy and a
>>> python serviceProvider as hello.py with
>>> 
>>> 
>>> http://my.website/zoo/?Service=WPS&Request=Execute&Version=1.0.0&Identifier=HelloPy&DataInputs=a=My%20Name
>>> 
>>> the zoo kernel returns a segmentation fault message like
>>> 
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <ows:ExceptionReport xmlns:ows="http://www.opengis.net/ows/1.1"
>>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>>> xmlns:xlink="http://www.w                  3.org/1999/xlink"
>>> xsi:schemaLocation="http://www.opengis.net/ows/1.1
>>> http://schemas.opengis.net/ows/1.1.0/owsExceptionReport.xsd"
>>> xml:lang="en-                  US" version="1.1.0">
>>>  <ows:Exception exceptionCode="InternalError">
>>>    <ows:ExceptionText>ZOO Kernel failed to process your request
>>> receiving signal 11 = SIGSEGV</ows:ExceptionText>
>>>  </ows:Exception>
>>> </ows:ExceptionReport>
>>> 
>>> Same happens when I run it from the command line
>>> ./zoo_loader.cgi
>>> 
>>> "Service=WPS&Request=Execute&Version=1.0.0&Identifier=HelloPy&DataInputs=a=My%20Name"
>>> 
>>> So it seems sort of "caught" segfault from some internal
>>> functionality. But I do not know how to do some kind of debugging.
>>> 
>>> Any ideas what I could try?
>>> 
>>> Armin
>>> _______________________________________________
>>> Zoo-discuss mailing list
>>> Zoo-discuss at gisws.media.osaka-cu.ac.jp
>>> http://gisws.media.osaka-cu.ac.jp/mailman/listinfo/zoo-discuss
>> 
>> 
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Gérald Fenoy
gerald.fenoy at geolabs.fr

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