[MAPSERVER-USERS] Mapserv problems on Fedora

[Philippe Kruschitz]

It worked! Thank you list....

There was, indeed, a second regex library involved. The first time I tried
to compile Mapserver, 
I relied on a 1.4.2 GDAL package from the EPEL Repository. This package used
the POSIX library, 'librx', which wasn't
removed when I later uninstalled the GDAL package to compile it myself. For
some obscure reasons, building
GDAL from source used 'librx' instead of the system regex?... It would only
work after I completely removed the
POSIX library. I don't need librx, but I was wondering if this was a normal
behaviour? Should I post it to the GDAL list?

Thanks again,

Philippe


Daniel Morissette-2 wrote:
> 
> Sounds as if there might be two different copies of the regex library 
> involved in the build, and the wrong one would be used at runtime and 
> result in regex evaluations failing. This used to happen with PHP 
> MapScript when MapServer was compiled with the system regex and PHP was 
> compiled with its built-in regex. I realize that you are using mapserv 
> in this case and not PHP MapScript so it's not related to PHP at all, 
> but I would suggest that you look to make sure there is not another 
> dependency in your build that pulls a second copy of regex into the mix.
> 
> Daniel
> 
> Philippe Kruschitz wrote:
>> 
>> Do you think overriding the default mapfile pattern ("\\.map$") by
>> setting 
>> MS_MAPFILE_PATTERN could be a solution?
>> 
>> (though I still don't get why the regular expression returns as false,
>> the path in the URL obviously fits the default pattern...??)
>> 
>> Philippe
>> 
>> 
>> 
>> Philippe Kruschitz wrote:
>>>
>>> Hi Steven,
>>>
>>> Thanks for the hint. I'm glad it worked for you, although I doubt this
>>> has
>>> anything to do with AGG.
>>> Usually, trying to access non-existent mapfiles throws a LoadMap error:
>>>
>>> msLoadMap(): Unable to access file. (/home/pk/gis/no.map)
>>>
>>> Trying with non-existent and working mapfiles (using GD rendering)
>>> always
>>> gets me the same error:
>>>
>>> [http://localhost/cgi-bin/mapserv?map=no.map]
>>> msEvalRegex(): Regular expression error. String (no.map) failed
>>> expression
>>> test.
>>>
>>> [http://localhost/cgi-bin/mapserv?map=/home/pk/gis/no.map]
>>> msEvalRegex(): Regular expression error. String (/home/pk/gis/no.map)
>>> failed expression test.
>>>
>>> [http://localhost/cgi-bin/mapserv?map=/home/pk/gis/test.map]
>>> msEvalRegex(): Regular expression error. String (/home/pk/gis/test.map)
>>> failed expression test.
>>>
>>>
>>> To be sure, I recompiled Mapserver without agg support, getting the same
>>> result.
>>> I'm slowly considering switching to an Ubuntu server, as I tried almost
>>> everything I could.
>>>
>>> By the way, how did you find out about your bug?
>>>
>>> Best regards,
>>>
>>> Philippe
>>>
>>>
>>>
>>>
>>>
>>> Stephen Woodbridge wrote:
>>>> Philippe,
>>>>
>>>> My regex crash was because of a bug in mapserver
>>>> http://trac.osgeo.org/mapserver/ticket/2577#comment:8
>>>>
>>>> which has been fixed now in svn. It was specifically related to a crash 
>>>> cause when AGG FORMATOPTION PALETTE=<file> could not open <file>.
>>>>
>>>> Hope this helps,
>>>>    -Steve W
>>>>
>>>> Philippe Kruschitz wrote:
>>>>>> You --must-- compile and install the last version of
>>>>>> gd, the gd version on RHEL 5 and 5.1 is broken, also
>>>>>> on centos and fedora core 8.
>>>>>>
>>>>>> Be sure to replace the old gd version on /usr/lib,
>>>>>> also check the simlinks on /usr/lib, then run ldconfig
>>>>>> as root.
>>>>>>
>>>>>> If you use mapserver with phpmapscript install php-gd
>>>>>> with yum.
>>>>>>
>>>>>> Hope this helps.
>>>>>>
>>>>>> Saludos.
>>>>>>
>>>>>> --
>>>>>> Nahum Castro
>>>>>> Leon, Guanajuato, Mexico
>>>>>> http://www.leon-linux.com
>>>>>> e-mail: pedro1_72 [en] yahoo [punto] com
>>>>>
>>>>> I did pretty much everything you said before compiling mapserver (i
>>>>> didn't
>>>>> have mapscript, though).
>>>>>
>>>>> I tried to to change the malloc value, as frank warmerdam suggested,
>>>>> with
>>>>> exactly the same result as stephen woodbridge: the crash is fixed, but
>>>>> the
>>>>> regular expression systematically fails.....
>>>>>
>>>>> Anyone has an idea? Did Stephen fixed it?
>>>>>
>>>>> Regards,
>>>>>
>>>>> Phil
>>>>>
>>>>>
>>>>>
>>>>> Quote S. Woodbridge:
>>>>>
>>>>> Hi Frank,
>>>>>
>>>>> Adding more to to the malloc fixed the crash, but the regex is failing
>>>>> :( and should be ok:
>>>>>
>>>>> Breakpoint 1, msEvalRegex (e=0x4e9873 "\\.map$",
>>>>>      s=0x7232a0 "/u/data/maps/google-agg.map") at mapfile.c:79
>>>>>
>>>>> ...
>>>>>
>>>>> 89        if(ms_regexec(&re, s, 0, NULL, 0) != 0) { /* no match */
>>>>> (gdb) p ms_regexec(&re, s, 0, 0, 0)
>>>>> $1 = 1
>>>>> (gdb) c
>>>>> Continuing.
>>>>> Content-type: text/html
>>>>>
>>>>> <HTML>
>>>>> <HEAD><TITLE>MapServer Message</TITLE></HEAD>
>>>>> <!-- MapServer version 5.0.2 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
>>>>> OUTPUT=WBMP OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG SUPPORTS=FREETYPE
>>>>> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
>>>>> INPUT=EPPL7
>>>>> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE -->
>>>>> <BODY BGCOLOR="#FFFFFF">
>>>>> msEvalRegex(): Regular expression error. String
>>>>> (/u/data/maps/google-agg.map) failed expression test.
>>>>> </BODY></HTML>
>>>>> Program exited normally.
>>>>>
>>>>>
>>>>> This should NOT be happening. Arrrgh!
>>>>> Anyone else using fc8 on a x86_84 box?
>>>>>
>>>>> -Steve
>>>>>
>>>> _______________________________________________
>>>> mapserver-users mailing list
>>>> mapserver-users at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>>>>
>>>>
>>>
>> 
> 
> 
> -- 
> Daniel Morissette
> http://www.mapgears.com/
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
> 

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