[sane-devel] xsane>0.91 crashes always with canon canoscan 2700F

[Oliver Rauch]

This is a bug in xsane and in the canon backend.

The next release of xsane will work again with the canon backend.

Oliver

Am Die, 2004-05-11 um 22.06 schrieb Henning Meier-Geinitz:
> Hi,
> 
> On Wed, May 05, 2004 at 09:56:37PM +0200, Thomas Loescher wrote:
> > Unfortunately, the last version of xsane wich worked together with my
> > slide scanner (Canon canoscan 2700F, a scsi scanner) was 0.91. All
> > version above this crashed when I choosed the scanner in the startup
> > dialogue.
> 
> Does it work if you use a different backend? Try e.g. "xsane test". As
> it works with mustke, it should also work with test but you never know.
> 
> > [dll] sane_get_option_descriptor(handle=0x8175798,option=6)
> > [canon] >> sane_get_option_descriptor option number 6
> > [canon]    sane_get_option_descriptor option name OPT_SCANNING_SPEED
> > [canon] << sane_get_option_descriptor option number 6
> 
> Looks like that doesn't happen in the canon backend. 
> 
> > I also made an "strace xsane" (O.K. I really don't understand the
> > output of strace, it's like chinese tome ;-),
> 
> It's just a list of the functions which have been called.
> 
> > but perhaps it helps
> > somebody. I tried it with LANG=C and LANG=de_DE@euro, no diference it
> > crashes in both ways
> 
> Did changing the locale have any effect at all (English/German texts
> in xsane)? If not, try LC_ALL=C.
> 
> > open("/usr/share/locale/de_DE@euro/LC_MESSAGES/sane-backends.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
> > open("/usr/share/locale/de@euro/LC_MESSAGES/sane-backends.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
> > open("/usr/share/locale/de_DE/LC_MESSAGES/sane-backends.mo", O_RDONLY) = -1 ENOENT (No such file or directory)
> > open("/usr/share/locale/de/LC_MESSAGES/sane-backends.mo", O_RDONLY) = 37
> > fstat64(37, {st_mode=S_IFREG|0644, st_size=58618, ...}) = 0
> > mmap2(NULL, 58618, PROT_READ, MAP_PRIVATE, 37, 0) = 0x410a5000
> > close(37)                               = 0
> > --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> 
> Strange. Looks like it happened directly after loading the backend
> translation file.
> 
> In addition to SANE_DEBUG_CANON=255 and SANE_DEBUG_DLL=255 you can
> also set XSANE_DEBUG. Maybe that shows the exact position of the
> problem.
> 
> Bye,
>   Henning