[gdal-dev] gdalinfo error and subsequent segfault with proj-5.0.x

[Markus Metz]

Even,

On Sun, Apr 15, 2018 at 8:17 PM, Even Rouault <even.rouault at spatialys.com>
wrote:
>
> Markus,
>
> From a quick test generating a GeoTIFF in EPSG:25832, I can't reproduce.
>
> I suspect you may link at runtime against different proj versions.

You are right. I compiled GDAL with

libproj.so -> libproj.so.13.0.1
there is no other libproj.so on my system

but gdal links against libproj.so.12

> How did you
> build GDAL ? I'd strongly recommend you use --with-static-proj4 (whose
name is
> a bit misleading since it can actually link against a libproj.so), and
then
> check with "ldd libgdal.so" that you link against a single libproj.

OK, I recompiled gdal-2.2.4 --with-static-proj4 and got

ldd libgdal.so | grep proj
    libproj.so.13 => /usr/local/lib64/libproj.so.13 (0x00007fe2ff181000)
    libproj.so.12 => /lib64/libproj.so.12 (0x00007fe2f31c7000)
???

gdalinfo now runs fine and produces expected results.

I'm still concerned about the output of ldd libgdal.so

Markus M
>
> Even
>
> > I observed a segfault in gdalinfo (2.2.3, 2.2.4, 2.3.0dev-71e2ada881)
when
> > compiled against proj-5.0.0/proj-5.0.1
> >
> > The dataset is a GeoTIFF with EPSG:25832, and I get
> >
> > Corner Coordinates:
> > ERROR 1: illegal axis orientation combination
> > Upper Left  (  375000.000, 5631000.000)
> > ERROR 1: illegal axis orientation combination
> > Lower Left  (  375000.000, 5628000.000)
> > ERROR 1: illegal axis orientation combination
> > Upper Right (  379000.000, 5631000.000)
> > ERROR 1: illegal axis orientation combination
> > Lower Right (  379000.000, 5628000.000)
> > ERROR 1: illegal axis orientation combination
> > Center      (  377000.000, 5629500.000)
> > Segmentation fault (core dumped)
> >
> > The error message is printed by GDAL and comes from PROJ. I think the
> > segfault is a symptom of the error, therefore I would like to find out
the
> > reason of the error.
> >
> > Using gdal-2.2+ with proj-4.9.3, all is fine.
> >
> > Testing proj-5.0.1 with
> >
> > cs2cs +proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m
> > +no_defs +to +proj=latlong +ellps=GRS80
> >
> > proj -I +proj=utm +zone=32 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m
> > +no_defs
> >
> > cct +proj=pipeline +step +inv +proj=utm +zone=32 +ellps=GRS80
> > +towgs84=0,0,0,0,0,0,0 +units=m +no_defs
> >
> > all is fine, too.
> >
> > Is this a bug in (the old API still available with) proj-5.0.x or a bug
in
> > gdal-2.2+?
> > Any hints where and how to dig deeper?
> >
> > Markus M
>
>
> --
> Spatialys - Geospatial professional services
> http://www.spatialys.com
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