[gdal-dev] Ubuntu, gdal & ecw's >2gb on IA32

[Tim Bowden]

Fix found by FrankW on irc.  See http://trac.osgeo.org/gdal/ticket/2437
for bug report and solution.

Thanks all for assistance in sorting this one.
Tim Bowden

On Sun, 2008-06-22 at 23:47 +0800, Tim Bowden wrote:
> On Sun, 2008-06-22 at 05:45 -0600, Richard Greenwood wrote:
> > On Sat, Jun 21, 2008 at 10:28 PM, Tim Bowden <tim.bowden at westnet.com.au> wrote:
> > > On Sat, 2008-06-21 at 18:13 -0400, Marius Jigmond wrote:
> > >> Tim Bowden wrote:
> > >> > On Sat, 2008-06-21 at 09:09 -0600, Richard Greenwood wrote:
> > >> >
> > >> > > On Sat, Jun 21, 2008 at 9:00 AM, Tim Bowden &lt;tim.bowden at westnet.com.au&gt; wrote:
> > >> > >
> > >> > > > *me scratches head* and not for the first time.  I wasn't expecting that
> > >> > > > to make a difference.  No idea what to make of it.  Just to make sure
> > >> > > > I've got it right, the samba share was being served from a mac was it?
> > >> > > > And you were running gdalinfo from ubuntu 8.04?  or the other way
> > >> > > > around?
> > >> > > >
> > >> > > I'm running 32 bit Ubuntu Hardy 8.04. I had a Windows XP NTFS drive
> > >> > > mounted via Samba and gdalinfo was fine. Copied the same file to the
> > >> > > local ext3 partition and got the error. I'll be trying the same file
> > >> > > on a Slackware server in the next couple days.
> > >> > >
> > >> >
> > >> > Ah, perhaps it's worth trying on a non ext3 filesystem.  Not sure how it
> > >> > would make a difference, but I've got no other ideas.
> > >> >
> > >> > > Obviously a work around is to split the ecw file into tiles.
> > >> > >
> > >> > >
> > >> > Ugly solution for me.  I've got (client rather) abt 350gb+ of ecw's
> > >> > mostly over 2gb each being served up by mapserver that will be updated
> > >> > every three months .  Hate to have to automate that in a failsafe way.
> > >> >
> > >> > Tim
> > >> >
> > >> >
> > >> > > Rich
> > >> > >
> > >> > >
> > >> This might be related to a similar issue I had reading tiff's larger
> > >> than 2GB also on Ubuntu 8.04. I have the exact same error, while it
> > >> works on Ubuntu 7.10. I never got to the bottom of it, but I suspect
> > >> something is broken in Ubuntu 8.04.
> > >>
> > >> Marius
> > >>
> > > I just got the same result with a geotiff >2gb.  I think we can say
> > > libecwj is in the clear for now.
> > >
> > > Richard, is your slackware ext3?
> > 
> > No. It is  reiserfs.
> > 
> I've just tried reiserfs on ubuntu 8.04 and there is no change in the
> problem.  I'm going to chase this one up in bunty land, as it seems
> clear this is an ubuntu specific problem.  I'll report back if I ever
> get to the bottom of it.
> 
> Regards,
> Tim Bowden
> 
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