[Digikam-devel] [Bug 242816] New: digikam gets stuck when moving and renaming a lot of albums

[S. Burmeister]

https://bugs.kde.org/show_bug.cgi?id=242816

           Summary: digikam gets stuck when moving and renaming a lot of
                    albums
           Product: digikam
           Version: 1.4.0
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel at kde.org
        ReportedBy: sven.burmeister at gmx.net


Version:           1.4.0 (using KDE 4.4.3) 
OS:                Linux

I started to rename albums from within digikam and noticed that hard disk I/O
increased a lot. Then I moved an album within the collection, yet from outside
i.e. via dolphin while digikam was open. This made digikam respond very slowly
yet I could rename another album.

After clicking "ok" to rename the album the album tree was not re-sorted but
digikam was stuck, not causing CPU or hard disk usage.

I attached gdb to it and got the following backtrace.

(gdb) bt
#0  0x00007f50466c7afe in __lll_lock_wait_private () from /lib64/libc.so.6
#1  0x00007f5046663930 in _L_lock_6455 () from /lib64/libc.so.6
#2  0x00007f504665fe57 in malloc_check () from /lib64/libc.so.6
#3  0x00007f5046657bf4 in __libc_message () from /lib64/libc.so.6
#4  0x00007f504665d226 in malloc_printerr () from /lib64/libc.so.6
#5  0x00007f504665f8cf in _int_malloc () from /lib64/libc.so.6
#6  0x00007f504665fe72 in malloc_check () from /lib64/libc.so.6
#7  0x00007f504760dccb in QString::QString(QChar const*, int) () from
/usr/lib64/libQtCore.so.4
#8  0x00007f5035040caa in ?? () from
/usr/lib64/qt4/plugins/sqldrivers/libqsqlite.so
#9  0x00007f50350416ef in ?? () from
/usr/lib64/qt4/plugins/sqldrivers/libqsqlite.so
#10 0x00007f504bea2866 in QSqlQuery::exec() () from /usr/lib64/libQtSql.so.4
#11 0x00007f504ae47922 in Digikam::DatabaseCoreBackend::exec (this=0xc162c0,
query=...)
    at
/home/kde-branch/kde/src/digikam/libs/database/databasecorebackend.cpp:1032
#12 0x00007f504ae46604 in Digikam::DatabaseCoreBackend::execQuery
(this=0xc162c0, sql=..., 
    boundValue1=...)
    at
/home/kde-branch/kde/src/digikam/libs/database/databasecorebackend.cpp:769
#13 0x00007f504ae46276 in Digikam::DatabaseCoreBackend::execSql (this=0xc162c0,
sql=..., 
    boundValue1=..., values=0x7fff4d7e2970, lastInsertId=0x0)
    at
/home/kde-branch/kde/src/digikam/libs/database/databasecorebackend.cpp:718
#14 0x00007f504a88a970 in Digikam::AlbumDB::getItemShortInfo (this=0xcb5390,
imageID=7354)
    at /home/kde-branch/kde/src/digikam/libs/database/albumdb.cpp:1016
#15 0x00007f504a8ce441 in Digikam::ImageInfo::ImageInfo (this=0x7fff4d7e2a70,
ID=7354)
    at /home/kde-branch/kde/src/digikam/libs/database/imageinfo.cpp:109
#16 0x00000000006a8806 in
Digikam::ScanControllerLoadingCacheFileWatch::slotImageChanged (this=
    0xe3c540, changeset=...) at
/home/kde-branch/kde/src/digikam/digikam/scancontroller.cpp:838
#17 0x00000000006a54b1 in
Digikam::ScanControllerLoadingCacheFileWatch::qt_metacall (this=
    0xe3c540, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x3019ab0)
    at /home/kde-branch/kde/build/digikam/digikam/scancontroller.moc:72
#18 0x00007f50476c4509 in QObject::event(QEvent*) () from
/usr/lib64/libQtCore.so.4
#19 0x00007f50482394d4 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
()
   from /usr/lib64/libQtGui.so.4
#20 0x00007f5048241aca in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib64/libQtGui.so.4
#21 0x00007f5048e5d9e6 in KApplication::notify(QObject*, QEvent*) ()
   from /usr/lib64/libkdeui.so.5
---Type <return> to continue, or q <return> to quit---m
#22 0x00007f50476b2e4c in QCoreApplication::notifyInternal(QObject*, QEvent*)
()
   from /usr/lib64/libQtCore.so.4
#23 0x00007f50476b65ba in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*)
    () from /usr/lib64/libQtCore.so.4
#24 0x00007f50476db173 in ?? () from /usr/lib64/libQtCore.so.4
#25 0x00007f5042abaa93 in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#26 0x00007f5042abb270 in ?? () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f5042abb510 in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#28 0x00007f50476db67f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#29 0x00007f50482da14e in ?? () from /usr/lib64/libQtGui.so.4
#30 0x00007f50476b2292 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib64/libQtCore.so.4
#31 0x00007f50476b2495 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib64/libQtCore.so.4
#32 0x00007f50476b688b in QCoreApplication::exec() () from
/usr/lib64/libQtCore.so.4
#33 0x000000000070ea6a in main (argc=5, argv=0x7fff4d7e3d28)
    at /home/kde-branch/kde/src/digikam/digikam/main.cpp:195

/usr/bin/nepomukservicestub digikamnepomukservice:

(gdb) bt
#0  0x00007ffe05633678 in poll () from /lib64/libc.so.6
#1  0x00007ffe04aa0fd4 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007ffe04aa1510 in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007ffe0754067f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#4  0x00007ffe05e3714e in ?? () from /usr/lib64/libQtGui.so.4
#5  0x00007ffe07517292 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib64/libQtCore.so.4
#6  0x00007ffe07517495 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
   from /usr/lib64/libQtCore.so.4
#7  0x00007ffe0751b88b in QCoreApplication::exec() () from
/usr/lib64/libQtCore.so.4
#8  0x0000000000403aa9 in main (argc=2, argv=0x7fffef100578)
    at /usr/src/debug/kdebase-runtime-4.4.3/nepomuk/servicestub/main.cpp:152




Reproducible: Didn't try

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