[Gdal-dev] GDAL hanging on TIFF operation?

Ed McNierney ed at topozone.com
Mon Mar 7 11:24:02 EST 2005

Frank et al. -

I seem to have done something strange with my build config to cause this
problem.  I have been building GDAL with external TIFF and GeoTIFF
libraries (mainly for rather old, historical reasons).  Although I did
nice clean rebuilds of everything, and things looked fine, there was
clearly some inappropriate interaction or bad build karma going on (the
GeoTIFF code was hanging trying to allocate 0 bytes to read a line from
the epsg_csv file.

Since my "historical" reasons aren't really relevant any more, I
reconfigured GDAL to use the internal libtiff and geotiff libraries, and
the problem went away.  I still need to investigate the problem so I
understand what went wrong, but this is clearly a user error.

Thanks for the help, Frank.

	- Ed

Ed McNierney

-----Original Message-----
From: Frank Warmerdam [mailto:fwarmerdam at gmail.com] 
Sent: Friday, March 04, 2005 11:36 AM
To: Ed McNierney
Subject: Re: [Gdal-dev] GDAL hanging on TIFF operation?

On Fri, 4 Mar 2005 11:11:43 -0500, Ed McNierney <ed at topozone.com> wrote:
> The problem is a generic one, in that it's happened with every file I
> try.  The sample attached is O40100H8.tif and a simple:
> gdalinfo O40100H8.tif
> should reproduce the hang.  On my test system gdalinfo starts using
> CPU 100% and doesn't stop.
> I just noticed that testing an old GDAL 1.1.9 on a different system
> NOT cause gdalinfo to hang.  Therefore, it's possible this is a
> configuration screwup on my end.  If you could just run the sample
> through your current gdalinfo and confirm whether it hangs or not,
> would be a big help.  Thanks!

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