[digikam] [Bug 344997] New: 100% CPU - Hang for VERY long periods

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[digikam] [Bug 344997] New: 100% CPU - Hang for VERY long periods

James R. Shipman
https://bugs.kde.org/show_bug.cgi?id=344997

            Bug ID: 344997
           Summary: 100% CPU - Hang for VERY long periods
           Product: digikam
           Version: 4.9.0
          Platform: Compiled Sources
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: general
          Assignee: [hidden email]
          Reporter: [hidden email]

Digikam hangs constantly for no apparent reason.  Occurs when maint. tools are
used (thumbnails), but also occurs at other times.
====================
Compiled sources
Build date: Mar 9 2015 (target: debugfull)
Rev.: 52dc2861efca3d8deda9fe20fefc46e85029e484
=======================
digiKam version 4.9.0
CPU cores: 4
Demosaic GPL2 pack support: Unknown
Demosaic GPL3 pack support: Unknown
Exiv2 can write to Jp2: Yes
Exiv2 can write to Jpeg: Yes
Exiv2 can write to Pgf: Yes
Exiv2 can write to Png: Yes
Exiv2 can write to Tiff: Yes
Exiv2 supports XMP metadata: Yes
LibCImg: 130
LibEigen: 3.2.4
LibExiv2: 0.24
LibJPEG: 62
LibJasper: 1.900.1
LibKDE: 4.14.4
LibKExiv2: 2.4.0
LibKGeoMap: 3.1.0
LibKdcraw: 2.4.2
LibLCMS: 2060
LibLensFun: 0.2.8-0
LibLqr support: yes
LibPGF: 6.13.45
LibPNG: 1.6.10
LibQt: 4.8.6
LibRaw: 0.16.0
LibTIFF: LIBTIFF, Version 4.0.3 Copyright (c) 1988-1996 Sam Leffler Copyright
(c) 1991-1996 Silicon Graphics, Inc.
Marble Widget: 0.19.95 (0.20 Beta 3)
Parallelized demosaicing: Unknown
RawSpeed codec support: Unknown
Baloo support: no
Database backend: QSQLITE
Kdepimlibs support: Yes
Kipi-Plugins: 4.9.0
LibGphoto2: 2.5.7
LibKface: 3.5.0
LibKipi: 2.2.0
LibOpenCV: 2.4.9
Sqlite2 support: Yes
=======================

Trace when break out with Cont-C
=========================
Program received signal SIGINT, Interrupt.
0x00007ffff5508607 in Digikam::ManagedLoadSaveThread::findExistingTask (
    this=0x145f4f0, loadingDescription=...)
    at
/home/shipman/Downloads/dk/core/libs/threadimageio/managedloadsavethread.cpp:141
141            if (task->type() == LoadSaveTask::TaskTypeLoading)
(gdb) n
143                loadingTask = static_cast<LoadingTask*>(task);
(gdb)
145                if (loadingTask->loadingDescription() == loadingDescription)
(gdb)
137        for (int i = 0; i < m_todo.size(); ++i)
(gdb)
139            LoadSaveTask* const task = m_todo[i];
(gdb) print i, m_todo.size()
$13 = 105567
(gdb) print i
$14 = 41168
(gdb) n
141            if (task->type() == LoadSaveTask::TaskTypeLoading)
(gdb)
143                loadingTask = static_cast<LoadingTask*>(task);
(gdb)
145                if (loadingTask->loadingDescription() == loadingDescription)
(gdb)
137        for (int i = 0; i < m_todo.size(); ++i)
(gdb)
139            LoadSaveTask* const task = m_todo[i];
(gdb)
141            if (task->type() == LoadSaveTask::TaskTypeLoading)
(gdb)
143                loadingTask = static_cast<LoadingTask*>(task);
(gdb)
145                if (loadingTask->loadingDescription() == loadingDescription)
(gdb)
=========================
round and round it goes.
Jim Shipman

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[digikam] [Bug 344997] 100% CPU - Hang for VERY long periods

Gilles Caulier-4
https://bugs.kde.org/show_bug.cgi?id=344997

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |WAITINGFORINFO
                 CC|                            |[hidden email]
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Gilles Caulier <[hidden email]> ---
What's the trace from the console when you run digiKam ?

Please turn on debug space to print more information. Look here for details :

https://www.digikam.org/contrib

Gilles Caulier

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[digikam] [Bug 344997] 100% CPU - Hang for VERY long periods

James R. Shipman
In reply to this post by James R. Shipman
https://bugs.kde.org/show_bug.cgi?id=344997

Jim Shipman <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|WAITINGFORINFO              |INVALID

--- Comment #2 from Jim Shipman <[hidden email]> ---
I updated source from gits on March 17th and the problem was still there,
however, after the most recent update to fedora 21 now the problem is gone.  I
would support closing this bug now as I can no longer verify.

Just a note: After this latest fedora 21 update now I can again see my movie
files in the preview pane.  This has not worked for quite some time and it is a
very welcome change.

Jim Shipman

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[digikam] [Bug 344997] 100% CPU - Hang for VERY long periods

Gilles Caulier-4
In reply to this post by James R. Shipman
https://bugs.kde.org/show_bug.cgi?id=344997

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Version Fixed In|                            |4.9.0

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[digikam] [Bug 344997] 100% CPU - Hang for VERY long periods

bugzilla_noreply
In reply to this post by James R. Shipman
https://bugs.kde.org/show_bug.cgi?id=344997

[hidden email] changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|general                     |Database-Scan

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