Segfault on start

Hi,

I'm currently working on 0.5 which is totally rewritten. So bugs on 0.4 does not apply to 0.5. Obviously, i don't maintain 0.4. Could you please try latest 0.5.2 (released today). Gnome Scan > 0.5 require Babl 0.0.14 and Gegl SVN.

Thanks for testing and reporting !

Kind regards,
Étienne.

I dont understand, I reported bug in version 0.4.1. Ver. 0.5 is not in repository and for compilation there is not gegl in repository.

Hi,

Gegl and Babl are not packages in ubuntu. I provide some debs at "deb
http://bersace03.free.fr/ubuntu feisty universe" for i386. I'm not sure
the debs are uptodate ! Gegl depends on Babl. 0.5 is a development
series toward 0.6.

Kind regards,
Étienne.
--
E Ultreïa !

Your flegita segfaults too, so later when I reload preview. So this dont works too.
You dont have flegita-gimp package too.

Hi,

The packages at my repo are dated from 0.5.1 while i released 0.5.2 (including flegita-gimp) only as tarball. Since work is going on for 0.5.3, i won't update packages. Remember Gnome Scan is very unstable. You should use only SVN version of this software as well as Gegl. Babl is stable enough, you could use a tarball.

I'm sorry if this does not looks "user friendly", but that's a property of FOSS : release early-release often. However, releasing does not mean packaging. At this stage, packaging is often a waste of time. I take the time to package only important release (e.g. "stable" release like 0.4.1 or the first 0.5.X release : 0.5.1; this ease packager job since i rewrote all the packaging too). At this stage, a release is a reasonabily "buildable and runnable" version waiting for wider testing, rather for distribution and testing (0.6 will be such a release, closer to 1.0).

I'm very pleased to get feedbacks (even from launchpad which is not the BTS of gnome-scan), but remember Gnome Scan is at a very early stage !

Regarding this bug, could you please post the debugging output from the new gnome-scan ? 0.5.1 might be enough, i encourage you to test SVN (i fixed a couple of bug in SVN regarding some paper-size options).

Kind regards,
Étienne.

Like Pavel, flegita segfaults if TV card's modules are loaded (bttv, bt878).
As soon as i unload them (# rmmod bttv bt878), flegita runs fine and is able to detect my scanner correctly.
I haven't looked over 5.x branch yet.

Is this bug still valid as of 8.10 Intrepid?

Yes, this bug still in 8.10. Ive the some output.

Hi,

Please upgrade to 0.6.1 available in my PPA.

Regards,
Étienne.

Hello,
 I've upgraded and I think, TV card is not supported, because the output:

pavka@video:~$ flegita
** (flegita:5767): DEBUG: Initializing gnome-scan 0.6.1 for flegita (flegita)
** (flegita:5767): DEBUG: gsane-module.c:39: SANE version is 1.0.19
** (flegita:5767): DEBUG: Ignoring virtual device v4l:/dev/video0
** (flegita:5767): DEBUG: SANE device v4l:/dev/video0 failed or ignored

Segmentation fault
pavka@video:~$

Segfault from your binary is generated after click on Cancel button, or ESC key.

Hi,

Can you give me gdb output.

Run gdb flegita then
 - type 'r' to start debugging
 - Once it has crashed, type 'bt' to print debug backtrace
 - type 'l' to print the code where it fails
 - type 'info locals' to print local variables
 - type 'info args' to print arguments.
 - type 'up' to go one stack up
 - loop the four steps above until there is not stacks
 - post the result :)

Thanks,
Regards.

Hi Etienne,

segmentation fault here too:

golgoth@tatooine:~$ flegita
** (flegita:2891): DEBUG: Initializing gnome-scan 0.6.2 for flegita (flegita)
** (flegita:2891): DEBUG: gsane-module.c:39: SANE version is 1.0.20
WARNING: Unhandled message: interface=org.freedesktop.DBus.Introspectable, path=/, member=Introspect
** (flegita:2891): DEBUG: Ignoring virtual device v4l:/dev/video0
** (flegita:2891): DEBUG: SANE device v4l:/dev/video0 failed or ignored
** (flegita:2891): DEBUG: Number of options ():
** (flegita:2891): DEBUG: gint none (GParamInt), (null)
** (flegita:2891): DEBUG: default = 17 ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: === Device Hewlett-Packard Photosmart_Wireless_B109n-z (17 options) ===
** (flegita:2891): DEBUG:

** (flegita:2891): DEBUG: -- Group « Scan mode » --
** (flegita:2891): DEBUG: Scan mode (mode):
** (flegita:2891): DEBUG: gchararray none (GSParamEnumSpec), {"Lineart", "Gray", "Color"}
** (flegita:2891): DEBUG: default = "Color" ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: Scan resolution (resolution):
** (flegita:2891): DEBUG: gint dpi (GSParamRangeSpec), [75;1;1200]
** (flegita:2891): DEBUG: default = 75 ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG:

** (flegita:2891): DEBUG: -- Group « Advanced » --
** (flegita:2891): DEBUG: Contrast (contrast):
** (flegita:2891): DEBUG: gint none (GSParamRangeSpec), [0;1;100]
** (flegita:2891): DEBUG: default = 50 ; flags = {}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: Compression (compression):
** (flegita:2891): DEBUG: gchararray none (GSParamEnumSpec), {"None", "JPEG"}
** (flegita:2891): DEBUG: default = "JPEG" ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: JPEG compression factor (jpeg-quality):
** (flegita:2891): DEBUG: gint none (GSParamRangeSpec), [0;1;100]
** (flegita:2891): DEBUG: default = 10 ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: Batch scan (batch-scan):
** (flegita:2891): DEBUG: gboolean none (GParamBoolean), (null)
** (flegita:2891): DEBUG: default = FALSE ; flags = {writable}
** (flegita:2891): DEBUG:
** (flegita:2891): DEBUG: Scan source (source):
** (flegita:2891): DEBUG: gchararray none (GSParamEnumSpec), {"Flatbed"}
** (flegita:2891): DEBUG: default = "Flatbed" ; flags = {writable}
** (flegita:2891): DEBUG:

(flegita:2891): GLib-CRITICAL **: g_utf8_strlen: assertion `p != NULL || max == 0' failed
Erreur de segmentation

In 10.04, the crash still occurs. Since xsane is broken because of bug 446373 and flegita is now broken, I have no scanning abilities any more.

gdb backtrace attached.

I'm also affected by the same problem as showing in comment #12

(flegita:8978): GLib-CRITICAL **: g_utf8_strlen: assertion `p != NULL || max == 0' failed
Segmentation fault

Golgoth and Andy Botting, could you both provide a stacktrace like described in https://bugs.launchpad.net/ubuntu/+source/gnomescan/+bug/138280/comments/11

There are some similar bugs in gnome-scan and we try to fix those.

Regards,

   Philipp