[Gdal-dev] ECW File open failed

[Brent Fraser]

Ken,

  I think RC2 was released today
(http://www.ermapper.com/downloads/download_view.aspx?PRODUCT_VERSION_ID=288
)

Brent Fraser
GeoAnalytic Inc
Calgary, Alberta, Canada

----- Original Message ----- 
From: "Ken Sewell" <sewell at dramail.com>
To: "GDAL" <gdal-dev at lists.maptools.org>
Sent: Tuesday, February 07, 2006 12:40 PM
Subject: Re: [Gdal-dev] ECW File open failed


>
>
> Ok, I've traced through gdalinfo.  For anyone who's interested I found
> that gdb seems to get stuck in libecwj2-3.3/Source/C/NCSUtil/mutex.c in
> the function NCSMutexEnd:265 with the call to
>
> pthread_mutex_unlock(&(pMutex->m));
>
> After that point I get a
>
> Cannot access memory at 0x7fffffff4fb0
>
> and gdb won't go on.  I'm not very knowledgable with pthreads, so I'm not
> sure what else I can do at this point.  Since it seems like a libecw
> issue at this point so I'm going to list it on the ecwsdk 3.3RC1 feedback
> page.  Unless any pthread guru's have any advice, I guess GDAL/ECW will
> have to go onto the back burner until ecwsdk 3.3rc2.
>
> Ken
>
> On Tue, 7 Feb 2006, Frank Warmerdam wrote:
>
> > On 2/7/06, Ken Sewell <sewell at dramail.com> wrote:
> > >
> > > Yes, "gdalinfo --formats" does list "ECW (rw)"
> > >
> > > I went ahead and downloaded the 3.3 RC1 and tried it on my 32-bit and
my
> > > 64-bit.  gdalinfo on both machines show ECW in the formats list.  ECW
on
> > > the 32-bit seems to work, same error on the 64-bit.  The examples
> > > included with ecwsdk3.3rc1 do run on the 64-bit system.  I'm trying to
> > > dig further.  Is there an easy way to build a debug version of gdal?
I
> > > haven't found a config option or a makefile target to do this yet.
> >
> > Ken,
> >
> > How to build GDAL in debug mode is a closely guarded secret.
> > But if you promise not to tell anyone else, I'll pass it on.
> >
> > Set the CFG environment variable to debug before building and
> > the debug options will be used.
> >
> > eg.
> > $ export CFG=debug
> > $ make
> >
> > Remember, it's secret.  I do this in a completely nonstandard
> > way to ensure no one but me (and now you) can debug GDAL.
> >
> > 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
> >
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