[Bug 166576] New: digiKam quits when running "Rebuild all Thumbnail Images" twice

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[Bug 166576] New: digiKam quits when running "Rebuild all Thumbnail Images" twice

Bugzilla from andi.clemens@gmx.net
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http://bugs.kde.org/show_bug.cgi?id=166576         
           Summary: digiKam quits when running "Rebuild all Thumbnail
                    Images" twice
           Product: digikam
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: NOR
         Component: Thumbnails
        AssignedTo: digikam-devel kde org
        ReportedBy: andi.clemens gmx net


Version:           0.10.0-beta2 (rev.: 832472M) (using 4.00.98 (KDE 4.0.98 (4.1 RC1)), compiled sources)
Compiler:          gcc
OS:                Linux (i686) release 2.6.25-ARCH

I have a very small image collection for KDE4 testing purposes. So this test can be performed quite easy here. Maybe someone who tests this issue should reduce his collection, too so it will not take so long.

When running "Rebuild all Thumbnail Images", everything is fine. But if running immediately again, digiKam quits. But it seems not to crash, so no BT can be provided.
The console reads:
===========================================================
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-139166600' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-139166600' is still in use, all queries will cease to work.
Warning: Size 5396 of Exif.Minolta.0x0020 exceeds 4096 bytes limit. Not decoded.
Running RAW decoding command: "/opt/kdemod/lib/libkdcraw5/kdcraw -c -e /kde4user/testfotos/MINOLTA-DYNAX5D-02.MRW"
Using embedded RAW preview extraction
Warning: Size 5396 of Exif.Minolta.0x0020 exceeds 4096 bytes limit. Not decoded.
Orientation => Exif.MinoltaCs5D.Rotation =>  72

ASSERT: "!isEmpty()" in file /usr/include/QtCore/qlist.h, line 256
===========================================================


Andi
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Bugzilla from andi.clemens@gmx.net
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http://bugs.kde.org/show_bug.cgi?id=166576         
andi.clemens gmx net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|unspecified                 |0.10.0-svn
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Bugzilla from andi.clemens@gmx.net
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------- Additional Comments From andi.clemens gmx net  2008-07-14 22:06 -------
Another issue:

1. Run "Rebuild all Thumbnails"
2. Select an image
3. Image->Find Similar

It will quit again with the same error message:

================================================
ASSERT: "!isEmpty()" in file /usr/include/QtCore/qlist.h, line 256
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-139166600' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-139166600' is still in use, all queries will cease to work.
QSqlDatabasePrivate::removeDatabase: connection 'digikamDatabase-139166600' is still in use, all queries will cease to work.
================================================

Andi
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Bugzilla from kropx77@gmail.com
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kropx77 gmail com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |crash
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Marcel Wiesweg
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------- Additional Comments From marcel.wiesweg gmx de  2008-07-15 18:46 -------
ASSERT: "!isEmpty()" in file /usr/include/QtCore/qlist.h, line 256

Andi, debugging hint: Qt uses ASSERTs in some methods of QList. Hitting them usually means you use operator[] with an invalid index or something similar.
For whatever reasons (I think I have read it has been fixed meanwhile) this assert does not cause an abort, but an exit, so no crash handler.
To get a backtrace, you must run under gdb and set a breakpoint for "exit".
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Bugzilla from andi.clemens@gmx.net
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------- Additional Comments From andi.clemens gmx net  2008-07-15 19:29 -------
Created an attachment (id=26153)
 --> (http://bugs.kde.org/attachment.cgi?id=26153&action=view)
backtrace, backtrace full, info registers, thread all backtrace

Hi Marcel,

I hope this is enough information for now... :-)
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[Bug 166576] digiKam quits when running "Rebuild all Thumbnail Images" twice

Marcel Wiesweg
In reply to this post by Bugzilla from andi.clemens@gmx.net
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http://bugs.kde.org/show_bug.cgi?id=166576         
marcel.wiesweg gmx de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED



------- Additional Comments From marcel.wiesweg gmx de  2008-07-17 21:49 -------
SVN commit 834001 by mwiesweg:

Be more cautious: When using a shared thread, signals may come for other images as well

BUG: 166576


 M  +2 -1      batchthumbsgenerator.cpp  


WebSVN link: http://websvn.kde.org/?view=rev&revision=834001
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