[Mapserver-users] Internal Server Error / How can I check for errors?

[Andreas Delleske]

Hi there,

this is my second attempt to get an answer, although browsing through the docs and google didnt help till now:

I have a 4.0.1 mapserver running (besides the problem) fine on a debian sarge installation.

The only thing is that if tiff-images (for input) are involved, apache says "internal server error (500)" and the logfiles say nothing. This although the same tiff-maps worked fine on another installation of mapserver 3.6.5 on SUSE...

I assume the libraries must be in limbo...

How can I check whether everything is linked fine? How are the memory limitations? (This could be another possible source of trouble)

ldd mapserv gives:
        libgd.so.2 => /usr/lib/libgd.so.2 (0x4001d000)
        libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0x40056000)
        libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x40074000)
        libpng12.so.0 => /usr/lib/libpng12.so.0 (0x400e2000)
        libz.so.1 => /usr/lib/libz.so.1 (0x40106000)
        libtiff.so.3 => /usr/lib/libtiff.so.3 (0x40117000)
        libproj.so.0 => /usr/lib/libproj.so.0 (0x4015a000)
        libgdal.so.1 => /usr/lib/libgdal.so.1 (0x4018c000)
        libcurl.so.2 => /usr/lib/libcurl.so.2 (0x4051d000)
        libssl.so.0.9.6 => /usr/lib/i686/cmov/libssl.so.0.9.6 (0x40549000)
        libcrypto.so.0.9.6 => /usr/lib/i686/cmov/libcrypto.so.0.9.6 (0x40576000)
        libdl.so.2 => /lib/libdl.so.2 (0x4062e000)
        libm.so.6 => /lib/libm.so.6 (0x40631000)
        libc.so.6 => /lib/libc.so.6 (0x40653000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x40786000)
        libXpm.so.4 => /usr/X11R6/lib/libXpm.so.4 (0x407d8000)
        libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x407e7000)
        libodbc.so.1 => /usr/lib/libodbc.so.1 (0x408ae000)
        libxerces-c.so.21 => /usr/lib/libxerces-c.so.21 (0x40926000)
        libmfhdf.so.4 => /usr/lib/libmfhdf.so.4 (0x40cee000)
        libdf.so.4 => /usr/lib/libdf.so.4 (0x40d10000)
        libungif.so.4 => /usr/lib/libungif.so.4 (0x40db0000)
        libcfitsio.so.2 => /usr/lib/libcfitsio.so.2 (0x40db8000)
        libstdc++-libc6.2-2.so.3 => /usr/lib/libstdc++-libc6.2-2.so.3 (0x40ef9000)
        libssl.so.0.9.7 => /usr/lib/i686/cmov/libssl.so.0.9.7 (0x40f42000)
        libcrypto.so.0.9.7 => /usr/lib/i686/cmov/libcrypto.so.0.9.7 (0x40f71000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
        libltdl.so.3 => /usr/lib/libltdl.so.3 (0x41063000)

PNG, freetype goes well already.

Any hints? How can I debug such a case if no logfile output is generated?

-- 
Gruß
Andreas Delleske