[Bug 261319] New: Digikam crash at startup with "signal: Illegal instruction" (SIGILL)

https://bugs.kde.org/show_bug.cgi?id=261319

           Summary: Digikam crash at startup with "signal: Illegal
                    instruction" (SIGILL)
           Product: digikam
           Version: 1.6.0
          Platform: Fedora RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: [hidden email]
        ReportedBy: [hidden email]


Version:           1.6.0 (using KDE 4.5.4)
OS:                Linux

Every time i try to start digikam, it crashes with "signal: Illegal
instruction", as reported by the kcrash application.


Reproducible: Always

Steps to Reproduce:
Just start digikiam

Actual Results:  
crash with signal: illegal instruction


I'm not sure, but i think that's is related to the newest opencv version (2.1)
against which kipi-plugins are linked. As reported here:
http://sacripante.wordpress.com/2010/04/02/opencv-2-0-0a-winxp-on-amd/
starting from version 2.0 opencv libraries are compiled with sse2 instructions,
producing a code not executable on platform not supporting these extensions, as
the athlon-xp i'm currently using.

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[Michael G. Hansen]

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--- Comment #1 from Michael G. Hansen <mike mghansen de>  2010-12-26 22:52:28 ---
Hi Giovanni,

thanks for you report! Does KCrash give you any more detailed output, like a
backtrace? If so, please also post it here!

Michael

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--- Comment #2 from Giovanni Bacci <s206756 studenti ing unipi it>  2010-12-26 23:09:22 ---
Created an attachment (id=55270)
 --> (http://bugs.kde.org/attachment.cgi?id=55270)
here's the kcrash generated backtrace

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Michael G. Hansen <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|general                     |RemoveRedEyes
            Product|digikam                     |kipiplugins




--- Comment #3 from Michael G. Hansen <mike mghansen de>  2010-12-26 23:37:06 ---
Well, the backtrace is not so useful because there are no debug-symbols
applied, but at least we know the crash is in opencv, supporting your theory.

If you want to get digikam to start without having to do a recompile: I think
the only plugin that uses OpenCV is the Removed-Red-Eyes plugin. Therefore, you
can simply, as root, rename the file: /usr/lib/kde4/kipiplugin_removeredeyes.so

mv /usr/lib/kde4/kipiplugin_removeredeyes.so
/usr/lib/kde4/kipiplugin_removeredeyes.so.disabled

This way, the removedredeyes plugin should not be loaded, hence avoiding the
crash for now.

Michael

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Michael G. Hansen <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|[hidden email]       |[hidden email]




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[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|kipiplugins                 |digikam
          Component|RemoveRedEyes               |Faces-RedEyes
           Assignee|[hidden email]         |[hidden email]

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