[gdal-dev] Reading GRIB2 with GDAL 1.6.3 leeds to Warning: Investigate Template 4.8 bytes 35-41

[Even Rouault]

Eloi,

I've fixed an "obvious" coding error in the degrib library used by GDAL to 
read GRIB files that was the cause for the crash. It seems it is a bit 
related to the warning message about not being able to parse the date (that 
still persists), but not at the same place where the warning is emitted.

Best regards,

Even

Le Monday 24 May 2010 10:30:25 Eloi Ribeiro, vous avez écrit :
> On Fri, Apr 30, 2010 at 12:42 PM, Eloi Ribeiro 
<eloi.ribeiro at gmail.com>wrote:
> > On Thu, Apr 29, 2010 at 3:35 PM, Frank Warmerdam 
<warmerdam at pobox.com>wrote:
> >> Eloi Ribeiro wrote:
> >>> Hi,
> >>>
> >>> I keep receiving this warning using GDAL (1.6.3 released 2009/11/19 on
> >>> Ubuntu desktop 9.10) whith GRIB2 files:
> >>>
> >>> "Warning: Investigate Template 4.8 bytes 35-41
> >>> Warning: Investigate Template 4.8 bytes 35-41
> >>> (...)
> >>> Warning: Investigate Template 4.8 bytes 35-41
> >>> Warning: Investigate Template 4.8 bytes 35-41
> >>> Segmentation fault"
> >>
> >> Eloi,
> >>
> >> The message comes from this part of:
> >>
> >> gdal/frmts/grid/degrib18/degrib/inventory.cpp
> >>
> >>
> >>         case GS4_STATISTIC: /* 4.8 */
> >>            if (InventoryParseTime (*buffer + 35 - 5, &(inv->validTime))
> >> != 0) {
> >>               printf ("Warning: Investigate Template 4.8 bytes
> >> 35-41\n"); inv->validTime = inv->refTime + inv->foreSec;
> >>            }
> >>
> >> Basically, it appears that it means there was a problem parsing
> >> a date in the grib file, and it is reported as a warning.
> >>
> >> There is no particular reason to believe it is related to the crash
> >> you see with some files.
> >>
> >> You might want to file a ticket with one of the files resulting in a
> >> crash for further investigation.
> >>
> >> Best regards,
> >> --
> >>
> >> ---------------------------------------+--------------------------------
> >>------ I set the clouds in motion - turn up   | Frank Warmerdam,
> >> warmerdam at pobox.com
> >> light and sound - activate the windows | http://pobox.com/~warmerdam
> >> and watch the world go round - Rush    | Geospatial Programmer for Rent
> >
> > Thank's for the tip Frank.
> > I just submitted a ticket[1].
> > I hope this issue can be solved.
> > Regards,
> >
> > [1] http://trac.osgeo.org/gdal/ticket/3555
> >
> > --
> > Eloi Ribeiro
> > GIS Analyst
> > 39,45º -4,40º
> > http://eloiribeiro.wordpress.com
>
> Hi,
> Just to let Know that the bug [1] persist after update to the latest GDAL
> version: GDAL 1.7.2, released 2010/04/23.
> Best regards,
>
> [1] http://trac.osgeo.org/gdal/ticket/3555