[Bug 195448] New: random system hangs when handling RAW images in digikam

[Tony Green-2]

https://bugs.kde.org/show_bug.cgi?id=195448

           Summary: random system hangs when handling RAW images in
                    digikam
           Product: digikam
           Version: 0.10.0
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           0.10.0 (using KDE 4.2.4)
OS:                Linux
Installed from:    Ubuntu Packages

Having discovered Digikam's excellent RAW-handling capabilities, I've been
using it intensively over the past couple of days re-editing my collection of
original files.

Unfortunately I'm being plagued by crashes at random times. Worse still, the
crashes take out my entire computer, leaving me with no alternative but to
reset it and reboot. I can't even SSH into the system to attempt a fix, though
the network card DOES respond to ping requests.

In case this was a problem with faulty memory, I left memtest running overnight
(more than 12 hours) and this found no problems at all.

The two common points at which this is occuring is during the RAW import
process (I'm using the RAW import tool) a couple of seconds after clicking the
"import" button, and when using the free-rotation tool. But I can't find a
pattern explaining what else triggers the crash; sometimes I can process a
dozen pictures and then it will crash. But then I can re-import the same file
with no problem.

I've installed Ubuntu's debug version of Digikam and tried running it with gdb,
but I'm  not seeing any useful information at the time of the crash; possibly
because the computer's hanging before it can print what gdb WOULD have told me?

I've also tried running Digikam with strace in the hope that this might provide
useful information, but I find that once the GUI has initialised, it seems to
detach itself from strace so I don't see any further information.

The result of the failure to get any useful debugging information means I'm not
giving you enough to fix the bug, so this is as much a plea for ideas of how I
might get more information about the crash; for example if it's possible to
prevent Digikam from detaching from strace.

...of course, how much information I'll be able to get will be limited by the
fact that there's no point in trying to write debugging information to a log as
the crash will prevent that from being written to disc so I can see it after
resetting the computer. But if I can capture as much as is still visible in a
terminal it MIGHT be useful.

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=195448


Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |RAW files management




--- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-06-06 13:57:43 ---
A cannont confirm that. i'm work everyday with RAW (MRW) and it work
perflectly.

As develpper, i use last version from svn of course, but there is no major
changes in RAW interface from digiKam since 0.10.0.

I suspect something wrong outside, perhaps database when data are recorded.

Crash can be investiguated if you provide backtrace.

Definitively, digiKam can never freeze your computer (especially when RAW file
are decoded). This is relevant of a dysfunction from your computer or a bad low
level driver.

Anyway, we need more info :

- Which Raw format ?
- Which sofware version ? Go to Help/Components info for details?
- Which operations exactly freeze digiKam ?
- Install digiKam debug package and run it from the console. What can you see
just before the freeze ?

Gilles Caulier

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[Tony Green-2]

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--- Comment #2 from  <tony beermad org uk>  2009-06-06 14:32:16 ---
Hi Gilles,

I was surprised at the complete system crash as well - that's why I ran memtest
in case there was a problem with memory. I'm seriously impressed with the way
Digikam deals with RAW files - so much so I spent most of yesterday
re-importing files I'd previously processed with Raw Therapee, even though I
knew I'd get crashes along the way.

Raw format: dcraw -i reports "Panasonic DMC-FZ8". I'm not sure if there's any
more information I can get from this?

Software version:
digiKam version 0.10.0
Exiv2 can write to Jp2: Yes
Exiv2 can write to Jpeg: Yes
Exiv2 can write to Png: Yes
Exiv2 can write to Tiff: Yes
Exiv2 support XMP metadata: Yes
LibCImg: 130
LibExiv2: 0.18
LibJPEG: 62
LibJasper: 1.900.1
LibKDE: 4.2.4 (KDE 4.2.4)
LibKExiv2: 0.5.0
LibKdcraw: 0.4.2
LibLCMS: 118
LibPNG: 1.2.27
LibQt: 4.5.0
LibRaw: 0.6.15-Release
LibTIFF: LIBTIFF, Version 3.8.2 Copyright (c) 1988-1996 Sam Leffler Copyright
(c) 1991-1996 Silicon Graphics, Inc.
Marble widget: 0.7.1
LibGphoto2: 2.4.2
LibKipi: 0.3.0

Operations that cause the freeze:
1. Importing picture. The import process gets to almost 100% but doesn't quite
make it.
2. Free rotation. I think it's at the point where I accept the rotation but I'm
currently working through some more pictures to check this. I'll report back
definitely shortly.

Running "gdb digikam", I've managed to capture what's visible on the photograph
of the screen I'll attach after saving this text.

Cheers
Tony Green

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--- Comment #3 from  <tony beermad org uk>  2009-06-06 14:36:04 ---
Created an attachment (id=34325)
 --> (http://bugs.kde.org/attachment.cgi?id=34325)
end of output from "gdb digikam"

Unfortunately a photograph of the screen rather than a proper screen-scrape,
due to the way it's failing.

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--- Comment #4 from Gilles Caulier <caulier gilles gmail com>  2009-06-06 14:41:32 ---
LibExiv2: 0.18

==> i recommend to use last Exiv2 0.18.1, to be sure...

LibKdcraw: 0.4.2

=> A little bit old. this is the lead RAW interface for digiKam.

LibRaw: 0.6.15-Release

This one is the MUST important. it's integrated into libkdcraw as well (no
external package) .this is the core component to handle RAW in all ways.

With current code of libkdcraw (integrated with KDE/Kdegraphics component,
libraw version is 0.7.2. I recomment to take a look to update it.

Gilles Caulier

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--- Comment #5 from Gilles Caulier <caulier gilles gmail com>  2009-06-06 14:44:01 ---
The freeze become during conversion to RGB color space by LibRaw. I recommend
highly to update libkdcraw (which include libraw)

Gilles Caulier

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--- Comment #6 from  <tony beermad org uk>  2009-06-06 14:50:18 ---
Many thanks for your help Gilles.

It looks like Kubuntu may be installing the wrong versions. I'll investigate
your recommendations and report the results here (and raise a bug with Kubuntu
if that turns out to be right)

Cheers
Tony

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--- Comment #7 from Gilles Caulier <caulier gilles gmail com>  2009-12-25 20:01:23 ---
digiKam 1.0.0 is out since few days...

http://www.digikam.org/drupal/node/491

Please try with this version comming with more than 400 bugfixes.

Thanks in advance

Gilles Caulier

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--- Comment #8 from Gilles Caulier <caulier gilles gmail com>  2009-12-25 20:07:10 ---
digiKam 1.0.0 is out since few days...

http://www.digikam.org/drupal/node/491

Please try with this version coming with more than 400 bug-fixes.

Thanks in advance

Gilles Caulier

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--- Comment #9 from Gilles Caulier <caulier gilles gmail com>  2010-01-25 21:47:43 ---
digiKam 1.1. release will be done in few days. Please check if this entry still
valid.

Thanks in advance

Gilles Caulier

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--- Comment #10 from Gilles Caulier <caulier gilles gmail com>  2010-04-04 10:42:46 ---
digiKam and Kipi-plugins 1.2.0 are out. Please check if crash is still valid
there.

Thanks in advance

Gilles Caulier

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           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |WAITINGFORINFO




--- Comment #11 from Gilles Caulier <caulier gilles gmail com>  2010-10-06 10:32:18 ---
We need more recent feedback using digiKam 1.4.0

Gilles Caulier

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--- Comment #12 from Gilles Caulier <[hidden email]> ---
New digiKam 4.11.0 is available.

https://www.digikam.org/node/740

Can you reproduce the problem with this release ?

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           What    |Removed                     |Added
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   Version Fixed In|                            |5.0.0
         Resolution|WAITINGFORINFO              |FIXED

--- Comment #13 from [hidden email] ---
This problem is not reproducible with last 5.0.0
I close this file now. Re-open it is necessary.
Gilles Caulier

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           What    |Removed                     |Added
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   Version Fixed In|5.0.0                       |5.1.0

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