[gdal-dev] Segmentation fault using gdal 1.4.4 and 1.5.2 on netcdf

[Even Rouault]

Vishal,

you can use both netcdf and HDF4, but you'll have to uninstall the HDF4 
library packaged by Ubuntu, and compile it from the source with the 
instructions given in the wiki.

Maybe worth reporting that to Debian/Ubuntu packagers if there's something 
they can do to build a compatible HDF4 library by default.

Le Wednesday 27 August 2008 23:30:30 Vishal Mehta, vous avez écrit :
> Thanks Dylan and Even,
>
> But does this mean that I would not be able to use gdal for hdf4 if I want
> netcdf support?
>
> vishal
>
>
> -----Original Message-----
> From: Dylan Beaudette [mailto:dylan.beaudette at gmail.com]
> Sent: Wednesday, August 27, 2008 2:11 PM
> To: gdal-dev at lists.osgeo.org
> Cc: Even Rouault; Vishal Mehta
> Subject: Re: [gdal-dev] Segmentation fault using gdal 1.4.4 and 1.5.2 on
> netcdf
>
> On Wednesday 27 August 2008, Even Rouault wrote:
> > Any chance that you are building GDAL with HDF4 support too ?
> >
> > http://trac.osgeo.org/gdal/wiki/NetCDF says :
> >
> > "If building GDAL with both HDF4 and NetCDF support it is necessary to
> > build the HDF library specially or a dangerous conflict will occur. See
> > the http://trac.osgeo.org/gdal/wiki/HDF topic for details."
> >
> > On my ubuntu 7.04, the hdf4 library coming from the .deb is not build
> > properly as indicated in the wiki and GDAL does crash.
>
> Thanks for the tip Even.
>
> I can confirm that I had built my copy of GDAL with both NetCDF and HDF
> support. I re-built after removing support for HDF, and now
>
> gdalinfo netcdf_file_that_was_broken
>
> returns the expected results!
>
> Great tip.
>
> Vishal: you will need to remove the hdf packages, and re-configure GDAL,
> then re-compile GDAL. I would do something like this
>
> sudo aptitude purge {name of hdf package}
> cd gdal/
> make clean
> ./configure [options from last time ....]
> make
> sudo make install
>
> Cheers,
> Dylan
>
> > Le Wednesday 27 August 2008 22:38:04 Vishal Mehta, vous avez écrit :
> > > Hello all,
> > >
> > > I continue to have 'segmentation fault' error using gdal-1.5.2 on
> > > Ubuntu 8.04 with netcdf files.
> > >
> > > I re-compiled gdal from source again, this time with Dylan Beaudette's
> > > gracious help (thanks Dylan!). I still got segmentation fault.
> > >
> > > Below are the last few lines of strace - hope that helps in identifying
> > > what the problem is... I have libnetcdf 3.6-2-2
> > >
> > > Please note that the two netcdf files I've tried do open using FWTools
> > > for Windows as well as starspan for Windows - so I don't think anything
> > > is wrong with the netcdf files..
> > >
> > > -vishal
> > >
> > > -------excerpt from strace follows---
> > >
> > > read(3, "CDF\1\0\0\0\1\0\0\0\n\0\0\0\3\0\0\0\3lat\0\0\0\1h\0\0\0"...,
> > > 4096) = 4096 _llseek(3, 0, [0], SEEK_SET)            = 0
> > > open(".", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|0x80000) = 4
> > > fstat64(4, {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
> > > fcntl64(4, F_GETFD)                     = 0x1 (flags FD_CLOEXEC)
> > > getdents(4, /* 6 entries */, 4096)      = 136
> > > getdents(4, /* 0 entries */, 4096)      = 0
> > > close(4)                                = 0
> > > open("airtemp.nc", O_RDONLY|O_LARGEFILE) = 4
> > > fstat64(4, {st_mode=S_IFREG|0666, st_size=265644, ...}) = 0
> > > fstat64(4, {st_mode=S_IFREG|0666, st_size=265644, ...}) = 0
> > > _llseek(4, 0, [0], SEEK_SET)            = 0
> > > read(4, "CDF\1\0\0\0\1\0\0\0\n\0\0\0\3\0\0\0\3lat\0\0\0\1h\0\0\0"...,
> > > 8192) = 8192 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> > > +++ killed by SIGSEGV +++
> > > Process 395 detached
> >
> > _______________________________________________
> > gdal-dev mailing list
> > gdal-dev at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/gdal-dev
>
> --
> Dylan Beaudette
> Soil Resource Laboratory
> http://casoilresource.lawr.ucdavis.edu/
> University of California at Davis
> 530.754.7341
>
> No virus found in this incoming message.
> Checked by AVG - http://www.avg.com
> Version: 8.0.138 / Virus Database: 270.6.9/1637 - Release Date: 8/27/2008
> 7:01 AM