### three reports of recent crashes - the first one with precedent description

Application: digikam (3.5.0)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Linux Mint 17 Qiana

-- Information about the crash:
- What I was doing when the application crashed:
Editing a serie of several photos; having saved the edited one, typing space bar to change to the following --> crash. Can't be reproduced, but crashes reliably happen sooner or later.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f41a11bdac0 (LWP 3468))]

Thread 7 (Thread 0x7f417cab6700 (LWP 3469)):
#0  0x00007f419abd812d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f418142a248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007f4195e67182 in start_thread (arg=0x7f417cab6700) at pthread_create.c:312
#3  0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7f4175fdf700 (LWP 3470)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f419b9c6816 in wait (time=18446744073709551615, this=0x2453150) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2508f90, mutex=mutex@entry=0x2508f88, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005d5ede in Digikam::ScanController::run (this=0x2508d00) at /build/buildd/digikam-3.5.0/core/digikam/database/scancontroller.cpp:725
#4  0x00007f419b9c632f in QThreadPrivate::start (arg=0x2508d00) at thread/qthread_unix.cpp:349
#5  0x00007f4195e67182 in start_thread (arg=0x7f4175fdf700) at pthread_create.c:312
#6  0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f41757de700 (LWP 3471)):
#0  0x00007f419abd812d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f419368efe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f419368f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f419baf57be in QEventDispatcherGlib::processEvents (this=0x7f41680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f419bac70af in QEventLoop::processEvents (this=this@entry=0x7f41757ddae0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f419bac73a5 in QEventLoop::exec (this=this@entry=0x7f41757ddae0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f419b9c3c5f in QThread::exec (this=this@entry=0x24f3cb0) at thread/qthread.cpp:537
#7  0x00007f419baa8823 in QInotifyFileSystemWatcherEngine::run (this=0x24f3cb0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f419b9c632f in QThreadPrivate::start (arg=0x24f3cb0) at thread/qthread_unix.cpp:349
#9  0x00007f4195e67182 in start_thread (arg=0x7f41757de700) at pthread_create.c:312
#10 0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f4174fdd700 (LWP 3474)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f419b9c6816 in wait (time=18446744073709551615, this=0x2466a50) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x24666a0, mutex=mutex@entry=0x2466698, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f419e83f79a in Digikam::ParkingThread::run (this=0x2466680) at /build/buildd/digikam-3.5.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007f419b9c632f in QThreadPrivate::start (arg=0x2466680) at thread/qthread_unix.cpp:349
#5  0x00007f4195e67182 in start_thread (arg=0x7f4174fdd700) at pthread_create.c:312
#6  0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f4167554700 (LWP 3475)):
#0  __pthread_mutex_unlock_usercnt (decr=1, mutex=0x7f4160000a60) at pthread_mutex_unlock.c:309
#1  __GI___pthread_mutex_unlock (mutex=0x7f4160000a60) at pthread_mutex_unlock.c:310
#2  0x00007f41936d09b1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f419368e680 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f419368ef03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f419368f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f419baf57be in QEventDispatcherGlib::processEvents (this=0x7f41600008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#7  0x00007f419bac70af in QEventLoop::processEvents (this=this@entry=0x7f4167553ae0, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f419bac73a5 in QEventLoop::exec (this=this@entry=0x7f4167553ae0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f419b9c3c5f in QThread::exec (this=this@entry=0x296b690) at thread/qthread.cpp:537
#10 0x00007f419baa8823 in QInotifyFileSystemWatcherEngine::run (this=0x296b690) at io/qfilesystemwatcher_inotify.cpp:265
#11 0x00007f419b9c632f in QThreadPrivate::start (arg=0x296b690) at thread/qthread_unix.cpp:349
#12 0x00007f4195e67182 in start_thread (arg=0x7f4167554700) at pthread_create.c:312
#13 0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f41527fc700 (LWP 3546)):
#0  0x00007f419abf3040 in pthread_mutex_lock (mutex=0x7f4118037f80) at forward.c:192
#1  0x00007f41936d0981 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f419368e557 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f419368ef03 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f419368f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f419baf57be in QEventDispatcherGlib::processEvents (this=0x7f41180242f0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007f419bac70af in QEventLoop::processEvents (this=this@entry=0x7f41527fbaa0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f419bac73a5 in QEventLoop::exec (this=this@entry=0x7f41527fbaa0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f419e83ee43 in Digikam::WorkerObjectRunnable::run (this=0x6178c60) at /build/buildd/digikam-3.5.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007f419b9b9fee in QThreadPoolThread::run (this=0x7f411c026740) at concurrent/qthreadpool.cpp:108
#10 0x00007f419b9c632f in QThreadPrivate::start (arg=0x7f411c026740) at thread/qthread_unix.cpp:349
#11 0x00007f4195e67182 in start_thread (arg=0x7f41527fc700) at pthread_create.c:312
#12 0x00007f419abe547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f41a11bdac0 (LWP 3468)):
[KCrash Handler]
#6  0x0000000004fc1ba0 in ?? ()
#7  0x00007f418572be5c in sqlite3MemCompare (pMem1=pMem1@entry=0x7fffc94ee2d0, pMem2=<optimized out>, pColl=0x7485068) at sqlite3.c:60495
#8  0x00007f418572c013 in sqlite3VdbeRecordCompare (nKey1=27, pKey1=0x7f41701a78fd, pPKey2=pPKey2@entry=0x7fffc94ee5d0) at sqlite3.c:64173
#9  0x00007f41857406b9 in sqlite3BtreeMovetoUnpacked (pCur=0x6838840, pIdxKey=0x7fffc94ee5d0, intKey=0, biasRight=<optimized out>, pRes=0x7fffc94ee5c0) at sqlite3.c:55088
#10 0x00007f4185768a75 in sqlite3VdbeExec (p=p@entry=0x7921ef8) at sqlite3.c:70179
#11 0x00007f4185770f87 in sqlite3Step (p=0x7921ef8) at sqlite3.c:64839
#12 sqlite3_step (pStmt=<optimized out>) at sqlite3.c:64905
#13 0x00007f41745d811c in QSQLiteResultPrivate::fetchNext (this=this@entry=0x7bbbdd0, values=..., idx=idx@entry=0, initialFetch=initialFetch@entry=true) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:235
#14 0x00007f41745d8e48 in QSQLiteResult::exec (this=0x67cdd90) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:447
#15 0x00007f41a0dedb7d in QSqlQuery::exec (this=this@entry=0x7fffc94eeb28) at kernel/qsqlquery.cpp:949
#16 0x00007f419e7f8a26 in Digikam::DatabaseCoreBackend::exec (this=0x2568ce0, query=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1414
#17 0x00007f419e7f8b52 in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x2568ce0, query=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1064
#18 0x00007f419e7f9c0c in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x2568ce0, sql=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1013
#19 0x00007f419e7f9c5c in Digikam::DatabaseCoreBackend::execSql (this=0x2568ce0, sql=..., boundValue1=..., boundValue2=..., values=values@entry=0x7fffc94eeb80, lastInsertId=lastInsertId@entry=0x0) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:910
#20 0x00007f419e1c16ae in Digikam::AlbumDB::findByNameAndCreationDate (this=0x24570a0, fileName=..., creationDate=...) at /build/buildd/digikam-3.5.0/core/libs/database/albumdb.cpp:2231
#21 0x00007f419e238394 in Digikam::ImageScanner::resolveHistoryImageId (historyId=...) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1245
#22 0x00007f419e238882 in Digikam::ImageScanner::resolvedImageHistory (history=..., mustBeAvailable=mustBeAvailable@entry=false) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1083
#23 0x0000000000494a6e in Digikam::ImageWindow::resolvedImageHistory (this=this@entry=0x4c62050, history=...) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:1604
#24 0x00007f419e92cbe2 in Digikam::EditorWindow::resetOriginSwitchFile (this=this@entry=0x4c62050) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1648
#25 0x00007f419e92cc55 in Digikam::EditorWindow::resetOrigin (this=this@entry=0x4c62050) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1643
#26 0x000000000049c7b3 in Digikam::ImageWindow::saveIsComplete (this=0x4c62050) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:969
#27 0x00007f419e92d511 in Digikam::EditorWindow::movingSaveFileFinished (this=this@entry=0x4c62050, successful=successful@entry=true) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1799
#28 0x00007f419e93b18b in Digikam::EditorWindow::moveFile (this=this@entry=0x4c62050) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:2627
#29 0x00007f419e93b818 in Digikam::EditorWindow::slotSavingFinished (this=0x4c62050, filename=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1765
#30 0x00007f419badc87a in QMetaObject::activate (sender=0x4cadcd0, m=m@entry=0x7f419ec4aba0 <Digikam::Canvas::staticMetaObject>, local_signal_index=local_signal_index@entry=13, argv=argv@entry=0x7fffc94ef2e0) at kernel/qobject.cpp:3539
#31 0x00007f419e89f676 in Digikam::Canvas::signalSavingFinished (this=<optimized out>, _t1=..., _t2=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/canvas.moc:298
#32 0x00007f419badc87a in QMetaObject::activate (sender=sender@entry=0x4bdd3c0, m=m@entry=0x7f419ec51a60 <Digikam::EditorCore::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7fffc94ef420) at kernel/qobject.cpp:3539
#33 0x00007f419e903ff6 in Digikam::EditorCore::signalImageSaved (this=this@entry=0x4bdd3c0, _t1=..., _t2=_t2@entry=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/editorcore.moc:197
#34 0x00007f419e90bc73 in Digikam::EditorCore::slotImageSaved (this=0x4bdd3c0, filePath=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/core/editorcore.cpp:451
#35 0x00007f419bae0c1e in QObject::event (this=0x4bdd3c0, e=<optimized out>) at kernel/qobject.cpp:1194
#36 0x00007f419c4bae2c in QApplicationPrivate::notify_helper (this=this@entry=0x2343b90, receiver=receiver@entry=0x4bdd3c0, e=e@entry=0x7f411403ae30) at kernel/qapplication.cpp:4567
#37 0x00007f419c4c14a0 in QApplication::notify (this=this@entry=0x7fffc94f01d0, receiver=receiver@entry=0x4bdd3c0, e=e@entry=0x7f411403ae30) at kernel/qapplication.cpp:4353
#38 0x00007f419d1c5d1a in KApplication::notify (this=0x7fffc94f01d0, receiver=0x4bdd3c0, event=0x7f411403ae30) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007f419bac84dd in QCoreApplication::notifyInternal (this=0x7fffc94f01d0, receiver=receiver@entry=0x4bdd3c0, event=event@entry=0x7f411403ae30) at kernel/qcoreapplication.cpp:953
#40 0x00007f419bacbb3d in sendEvent (event=0x7f411403ae30, receiver=0x4bdd3c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x22abfa0) at kernel/qcoreapplication.cpp:1577
#42 0x00007f419bacbfe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#43 0x00007f419baf5f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#44 postEventSourceDispatch (s=0x234c170) at kernel/qeventdispatcher_glib.cpp:287
#45 0x00007f419368ee04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f419368f048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f419368f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f419baf57a1 in QEventDispatcherGlib::processEvents (this=0x2295b70, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#49 0x00007f419c55cbe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f419bac70af in QEventLoop::processEvents (this=this@entry=0x7fffc94efcb0, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f419bac73a5 in QEventLoop::exec (this=this@entry=0x7fffc94efcb0, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007f419baccb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#53 0x00007f419c4b937c in QApplication::exec () at kernel/qapplication.cpp:3828
#54 0x0000000000492023 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/digikam-3.5.0/core/digikam/main/main.cpp:235

The reporter indicates this bug may be a duplicate of or related to bug 329697.

Possible duplicates by query: bug 356598, bug 356282, bug 355903, bug 351521, bug 351374.

----------------------------------------------------------------------------------------------------------

Application: digikam (3.5.0)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Linux Mint 17 Qiana

-- Information about the crash:
<Erklären Sie bitte ganz genau, was Sie machten, als das Programm abstürzte.>

The crash can be reproduced NOT every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f868f913ac0 (LWP 12547))]

Thread 6 (Thread 0x7f866b20c700 (LWP 12548)):
#0  0x00007f868932e12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f866fb80248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007f86845bd182 in start_thread (arg=0x7f866b20c700) at pthread_create.c:312
#3  0x00007f868933b47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7f8664735700 (LWP 12549)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f868a11c816 in wait (time=18446744073709551615, this=0x238e310) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x238e220, mutex=mutex@entry=0x238e218, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005d5ede in Digikam::ScanController::run (this=0x238df90) at /build/buildd/digikam-3.5.0/core/digikam/database/scancontroller.cpp:725
#4  0x00007f868a11c32f in QThreadPrivate::start (arg=0x238df90) at thread/qthread_unix.cpp:349
#5  0x00007f86845bd182 in start_thread (arg=0x7f8664735700) at pthread_create.c:312
#6  0x00007f868933b47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7f8663f34700 (LWP 12550)):
#0  0x00007f8681e2661d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f8681e269a9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8681de4fd9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f8681de50ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f868a24b7be in QEventDispatcherGlib::processEvents (this=0x7f86540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#5  0x00007f868a21d0af in QEventLoop::processEvents (this=this@entry=0x7f8663f33ae0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f868a21d3a5 in QEventLoop::exec (this=this@entry=0x7f8663f33ae0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f868a119c5f in QThread::exec (this=this@entry=0x2386be0) at thread/qthread.cpp:537
#8  0x00007f868a1fe823 in QInotifyFileSystemWatcherEngine::run (this=0x2386be0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007f868a11c32f in QThreadPrivate::start (arg=0x2386be0) at thread/qthread_unix.cpp:349
#10 0x00007f86845bd182 in start_thread (arg=0x7f8663f34700) at pthread_create.c:312
#11 0x00007f868933b47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f8663733700 (LWP 12553)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f868a11c816 in wait (time=18446744073709551615, this=0x260c970) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x260aa40, mutex=mutex@entry=0x260aa38, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f868cf9579a in Digikam::ParkingThread::run (this=0x260aa20) at /build/buildd/digikam-3.5.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007f868a11c32f in QThreadPrivate::start (arg=0x260aa20) at thread/qthread_unix.cpp:349
#5  0x00007f86845bd182 in start_thread (arg=0x7f8663733700) at pthread_create.c:312
#6  0x00007f868933b47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f8661caf700 (LWP 12554)):
#0  0x00007f868932e12d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f8681de4fe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f8681de50ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f868a24b7be in QEventDispatcherGlib::processEvents (this=0x7f864c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007f868a21d0af in QEventLoop::processEvents (this=this@entry=0x7f8661caeae0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f868a21d3a5 in QEventLoop::exec (this=this@entry=0x7f8661caeae0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f868a119c5f in QThread::exec (this=this@entry=0x2800af0) at thread/qthread.cpp:537
#7  0x00007f868a1fe823 in QInotifyFileSystemWatcherEngine::run (this=0x2800af0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f868a11c32f in QThreadPrivate::start (arg=0x2800af0) at thread/qthread_unix.cpp:349
#9  0x00007f86845bd182 in start_thread (arg=0x7f8661caf700) at pthread_create.c:312
#10 0x00007f868933b47d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f868f913ac0 (LWP 12547)):
[KCrash Handler]
#6  0x0000007f0000007f in ?? ()
#7  0x00007f8673e81e5c in sqlite3MemCompare (pMem1=pMem1@entry=0x7fff0a7c5600, pMem2=<optimized out>, pColl=0x753e838) at sqlite3.c:60495
#8  0x00007f8673e82013 in sqlite3VdbeRecordCompare (nKey1=27, pKey1=0x7f865c18f59d, pPKey2=pPKey2@entry=0x7fff0a7c5900) at sqlite3.c:64173
#9  0x00007f8673e966b9 in sqlite3BtreeMovetoUnpacked (pCur=0x747f670, pIdxKey=0x7fff0a7c5900, intKey=0, biasRight=<optimized out>, pRes=0x7fff0a7c58f0) at sqlite3.c:55088
#10 0x00007f8673ebea75 in sqlite3VdbeExec (p=p@entry=0x7122628) at sqlite3.c:70179
#11 0x00007f8673ec6f87 in sqlite3Step (p=0x7122628) at sqlite3.c:64839
#12 sqlite3_step (pStmt=<optimized out>) at sqlite3.c:64905
#13 0x00007f8662d2e11c in QSQLiteResultPrivate::fetchNext (this=this@entry=0x7c43da0, values=..., idx=idx@entry=0, initialFetch=initialFetch@entry=true) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:235
#14 0x00007f8662d2ee48 in QSQLiteResult::exec (this=0x70e7b30) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:447
#15 0x00007f868f543b7d in QSqlQuery::exec (this=this@entry=0x7fff0a7c5e58) at kernel/qsqlquery.cpp:949
#16 0x00007f868cf4ea26 in Digikam::DatabaseCoreBackend::exec (this=0x24025b0, query=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1414
#17 0x00007f868cf4eb52 in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x24025b0, query=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1064
#18 0x00007f868cf4fc0c in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x24025b0, sql=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1013
#19 0x00007f868cf4fc5c in Digikam::DatabaseCoreBackend::execSql (this=0x24025b0, sql=..., boundValue1=..., boundValue2=..., values=values@entry=0x7fff0a7c5eb0, lastInsertId=lastInsertId@entry=0x0) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:910
#20 0x00007f868c9176ae in Digikam::AlbumDB::findByNameAndCreationDate (this=0x2400800, fileName=..., creationDate=...) at /build/buildd/digikam-3.5.0/core/libs/database/albumdb.cpp:2231
#21 0x00007f868c98e394 in Digikam::ImageScanner::resolveHistoryImageId (historyId=...) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1245
#22 0x00007f868c98e882 in Digikam::ImageScanner::resolvedImageHistory (history=..., mustBeAvailable=mustBeAvailable@entry=false) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1083
#23 0x0000000000494a6e in Digikam::ImageWindow::resolvedImageHistory (this=this@entry=0x4b0a650, history=...) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:1604
#24 0x00007f868d082be2 in Digikam::EditorWindow::resetOriginSwitchFile (this=this@entry=0x4b0a650) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1648
#25 0x00007f868d082c55 in Digikam::EditorWindow::resetOrigin (this=this@entry=0x4b0a650) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1643
#26 0x000000000049c7b3 in Digikam::ImageWindow::saveIsComplete (this=0x4b0a650) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:969
#27 0x00007f868d083511 in Digikam::EditorWindow::movingSaveFileFinished (this=this@entry=0x4b0a650, successful=successful@entry=true) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1799
#28 0x00007f868d09118b in Digikam::EditorWindow::moveFile (this=this@entry=0x4b0a650) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:2627
#29 0x00007f868d091818 in Digikam::EditorWindow::slotSavingFinished (this=0x4b0a650, filename=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1765
#30 0x00007f868a23287a in QMetaObject::activate (sender=0x4b55fc0, m=m@entry=0x7f868d3a0ba0 <Digikam::Canvas::staticMetaObject>, local_signal_index=local_signal_index@entry=13, argv=argv@entry=0x7fff0a7c6610) at kernel/qobject.cpp:3539
#31 0x00007f868cff5676 in Digikam::Canvas::signalSavingFinished (this=<optimized out>, _t1=..., _t2=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/canvas.moc:298
#32 0x00007f868a23287a in QMetaObject::activate (sender=sender@entry=0x4a405c0, m=m@entry=0x7f868d3a7a60 <Digikam::EditorCore::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7fff0a7c6750) at kernel/qobject.cpp:3539
#33 0x00007f868d059ff6 in Digikam::EditorCore::signalImageSaved (this=this@entry=0x4a405c0, _t1=..., _t2=_t2@entry=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/editorcore.moc:197
#34 0x00007f868d061c73 in Digikam::EditorCore::slotImageSaved (this=0x4a405c0, filePath=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/core/editorcore.cpp:451
#35 0x00007f868a236c1e in QObject::event (this=0x4a405c0, e=<optimized out>) at kernel/qobject.cpp:1194
#36 0x00007f868ac10e2c in QApplicationPrivate::notify_helper (this=this@entry=0x21d5ba0, receiver=receiver@entry=0x4a405c0, e=e@entry=0x24a3a50) at kernel/qapplication.cpp:4567
#37 0x00007f868ac174a0 in QApplication::notify (this=this@entry=0x7fff0a7c7500, receiver=receiver@entry=0x4a405c0, e=e@entry=0x24a3a50) at kernel/qapplication.cpp:4353
#38 0x00007f868b91bd1a in KApplication::notify (this=0x7fff0a7c7500, receiver=0x4a405c0, event=0x24a3a50) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007f868a21e4dd in QCoreApplication::notifyInternal (this=0x7fff0a7c7500, receiver=receiver@entry=0x4a405c0, event=event@entry=0x24a3a50) at kernel/qcoreapplication.cpp:953
#40 0x00007f868a221b3d in sendEvent (event=0x24a3a50, receiver=0x4a405c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x213dfa0) at kernel/qcoreapplication.cpp:1577
#42 0x00007f868a221fe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#43 0x00007f868a24bf83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#44 postEventSourceDispatch (s=0x21de180) at kernel/qeventdispatcher_glib.cpp:287
#45 0x00007f8681de4e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f8681de5048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007f8681de50ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007f868a24b7a1 in QEventDispatcherGlib::processEvents (this=0x2127b70, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#49 0x00007f868acb2be6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007f868a21d0af in QEventLoop::processEvents (this=this@entry=0x7fff0a7c6fe0, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007f868a21d3a5 in QEventLoop::exec (this=this@entry=0x7fff0a7c6fe0, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007f868a222b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#53 0x00007f868ac0f37c in QApplication::exec () at kernel/qapplication.cpp:3828
#54 0x0000000000492023 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/digikam-3.5.0/core/digikam/main/main.cpp:235

---------------------------------------------------------------------------------------------

Application: digikam (3.5.0)
KDE Platform Version: 4.13.3
Qt Version: 4.8.6
Operating System: Linux 3.13.0-24-generic x86_64
Distribution: Linux Mint 17 Qiana

-- Information about the crash:
<Erklären Sie bitte ganz genau, was Sie machten, als das Programm abstürzte.>

The crash can be reproduced NOT every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7faa87ecdac0 (LWP 11984))]

Thread 7 (Thread 0x7faa637c6700 (LWP 11985)):
#0  0x00007faa818e812d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa6813a248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007faa7cb77182 in start_thread (arg=0x7faa637c6700) at pthread_create.c:312
#3  0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7faa5ccef700 (LWP 11986)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa826d6816 in wait (time=18446744073709551615, this=0x1d179b0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1d178c0, mutex=mutex@entry=0x1d178b8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005d5ede in Digikam::ScanController::run (this=0x1d17630) at /build/buildd/digikam-3.5.0/core/digikam/database/scancontroller.cpp:725
#4  0x00007faa826d632f in QThreadPrivate::start (arg=0x1d17630) at thread/qthread_unix.cpp:349
#5  0x00007faa7cb77182 in start_thread (arg=0x7faa5ccef700) at pthread_create.c:312
#6  0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7faa57fff700 (LWP 11987)):
#0  0x00007faa818e812d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa7a39efe4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7a39f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa828057be in QEventDispatcherGlib::processEvents (this=0x7faa500008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#4  0x00007faa827d70af in QEventLoop::processEvents (this=this@entry=0x7faa57ffeae0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faa827d73a5 in QEventLoop::exec (this=this@entry=0x7faa57ffeae0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007faa826d3c5f in QThread::exec (this=this@entry=0x1e34910) at thread/qthread.cpp:537
#7  0x00007faa827b8823 in QInotifyFileSystemWatcherEngine::run (this=0x1e34910) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007faa826d632f in QThreadPrivate::start (arg=0x1e34910) at thread/qthread_unix.cpp:349
#9  0x00007faa7cb77182 in start_thread (arg=0x7faa57fff700) at pthread_create.c:312
#10 0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7faa577fe700 (LWP 11990)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007faa826d6816 in wait (time=18446744073709551615, this=0x1fd3620) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1e2e510, mutex=mutex@entry=0x1e2e508, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007faa8554f79a in Digikam::ParkingThread::run (this=0x1e2e4f0) at /build/buildd/digikam-3.5.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007faa826d632f in QThreadPrivate::start (arg=0x1e2e4f0) at thread/qthread_unix.cpp:349
#5  0x00007faa7cb77182 in start_thread (arg=0x7faa577fe700) at pthread_create.c:312
#6  0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7faa5624b700 (LWP 11991)):
#0  0x00007faa818e682d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007faa7a3dfc10 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7a39eb14 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa7a39ef7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa7a39f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa828057be in QEventDispatcherGlib::processEvents (this=0x7faa4c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007faa827d70af in QEventLoop::processEvents (this=this@entry=0x7faa5624aae0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa827d73a5 in QEventLoop::exec (this=this@entry=0x7faa5624aae0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa826d3c5f in QThread::exec (this=this@entry=0x222cdf0) at thread/qthread.cpp:537
#9  0x00007faa827b8823 in QInotifyFileSystemWatcherEngine::run (this=0x222cdf0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007faa826d632f in QThreadPrivate::start (arg=0x222cdf0) at thread/qthread_unix.cpp:349
#11 0x00007faa7cb77182 in start_thread (arg=0x7faa5624b700) at pthread_create.c:312
#12 0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7faa3affd700 (LWP 12172)):
#0  0x00007faa7a3e0617 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007faa7a3e09a9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faa7a39ea59 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faa7a39ef7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faa7a39f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faa828057be in QEventDispatcherGlib::processEvents (this=0x7faa240207e0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007faa827d70af in QEventLoop::processEvents (this=this@entry=0x7faa3affcaa0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007faa827d73a5 in QEventLoop::exec (this=this@entry=0x7faa3affcaa0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007faa8554ee43 in Digikam::WorkerObjectRunnable::run (this=0x6ce2cd0) at /build/buildd/digikam-3.5.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007faa826c9fee in QThreadPoolThread::run (this=0x34e0920) at concurrent/qthreadpool.cpp:108
#10 0x00007faa826d632f in QThreadPrivate::start (arg=0x34e0920) at thread/qthread_unix.cpp:349
#11 0x00007faa7cb77182 in start_thread (arg=0x7faa3affd700) at pthread_create.c:312
#12 0x00007faa818f547d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7faa87ecdac0 (LWP 11984)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007faa6c43be5c in sqlite3MemCompare (pMem1=pMem1@entry=0x7fffcafa4b40, pMem2=<optimized out>, pColl=0x6734638) at sqlite3.c:60495
#8  0x00007faa6c43c013 in sqlite3VdbeRecordCompare (nKey1=27, pKey1=0x7faa5818429d, pPKey2=pPKey2@entry=0x7fffcafa4e40) at sqlite3.c:64173
#9  0x00007faa6c4506b9 in sqlite3BtreeMovetoUnpacked (pCur=0x1eb0080, pIdxKey=0x7fffcafa4e40, intKey=0, biasRight=<optimized out>, pRes=0x7fffcafa4e30) at sqlite3.c:55088
#10 0x00007faa6c478a75 in sqlite3VdbeExec (p=p@entry=0x6755128) at sqlite3.c:70179
#11 0x00007faa6c480f87 in sqlite3Step (p=0x6755128) at sqlite3.c:64839
#12 sqlite3_step (pStmt=<optimized out>) at sqlite3.c:64905
#13 0x00007faa5c2ea11c in QSQLiteResultPrivate::fetchNext (this=this@entry=0x7f12e60, values=..., idx=idx@entry=0, initialFetch=initialFetch@entry=true) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:235
#14 0x00007faa5c2eae48 in QSQLiteResult::exec (this=0x6c0bf50) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:447
#15 0x00007faa87afdb7d in QSqlQuery::exec (this=this@entry=0x7fffcafa5398) at kernel/qsqlquery.cpp:949
#16 0x00007faa85508a26 in Digikam::DatabaseCoreBackend::exec (this=0x1e36aa0, query=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1414
#17 0x00007faa85508b52 in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x1e36aa0, query=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1064
#18 0x00007faa85509c0c in Digikam::DatabaseCoreBackend::execQuery (this=this@entry=0x1e36aa0, sql=..., boundValue1=..., boundValue2=...) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:1013
#19 0x00007faa85509c5c in Digikam::DatabaseCoreBackend::execSql (this=0x1e36aa0, sql=..., boundValue1=..., boundValue2=..., values=values@entry=0x7fffcafa53f0, lastInsertId=lastInsertId@entry=0x0) at /build/buildd/digikam-3.5.0/core/libs/database/core/databasecorebackend.cpp:910
#20 0x00007faa84ed16ae in Digikam::AlbumDB::findByNameAndCreationDate (this=0x1d11500, fileName=..., creationDate=...) at /build/buildd/digikam-3.5.0/core/libs/database/albumdb.cpp:2231
#21 0x00007faa84f48394 in Digikam::ImageScanner::resolveHistoryImageId (historyId=...) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1245
#22 0x00007faa84f48882 in Digikam::ImageScanner::resolvedImageHistory (history=..., mustBeAvailable=mustBeAvailable@entry=false) at /build/buildd/digikam-3.5.0/core/libs/database/imagescanner.cpp:1083
#23 0x0000000000494a6e in Digikam::ImageWindow::resolvedImageHistory (this=this@entry=0x4541890, history=...) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:1604
#24 0x00007faa8563cbe2 in Digikam::EditorWindow::resetOriginSwitchFile (this=this@entry=0x4541890) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1648
#25 0x00007faa8563cc55 in Digikam::EditorWindow::resetOrigin (this=this@entry=0x4541890) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1643
#26 0x000000000049c7b3 in Digikam::ImageWindow::saveIsComplete (this=0x4541890) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/main/imagewindow.cpp:969
#27 0x00007faa8563d511 in Digikam::EditorWindow::movingSaveFileFinished (this=this@entry=0x4541890, successful=successful@entry=true) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1799
#28 0x00007faa8564b18b in Digikam::EditorWindow::moveFile (this=this@entry=0x4541890) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:2627
#29 0x00007faa8564b818 in Digikam::EditorWindow::slotSavingFinished (this=0x4541890, filename=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/editor/editorwindow.cpp:1765
#30 0x00007faa827ec87a in QMetaObject::activate (sender=0x4587390, m=m@entry=0x7faa8595aba0 <Digikam::Canvas::staticMetaObject>, local_signal_index=local_signal_index@entry=13, argv=argv@entry=0x7fffcafa5b50) at kernel/qobject.cpp:3539
#31 0x00007faa855af676 in Digikam::Canvas::signalSavingFinished (this=<optimized out>, _t1=..., _t2=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/canvas.moc:298
#32 0x00007faa827ec87a in QMetaObject::activate (sender=sender@entry=0x431f3e0, m=m@entry=0x7faa85961a60 <Digikam::EditorCore::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7fffcafa5c90) at kernel/qobject.cpp:3539
#33 0x00007faa85613ff6 in Digikam::EditorCore::signalImageSaved (this=this@entry=0x431f3e0, _t1=..., _t2=_t2@entry=true) at /build/buildd/digikam-3.5.0/obj-x86_64-linux-gnu/core/digikam/editorcore.moc:197
#34 0x00007faa8561bc73 in Digikam::EditorCore::slotImageSaved (this=0x431f3e0, filePath=..., success=<optimized out>) at /build/buildd/digikam-3.5.0/core/utilities/imageeditor/core/editorcore.cpp:451
#35 0x00007faa827f0c1e in QObject::event (this=0x431f3e0, e=<optimized out>) at kernel/qobject.cpp:1194
#36 0x00007faa831cae2c in QApplicationPrivate::notify_helper (this=this@entry=0x1c04b90, receiver=receiver@entry=0x431f3e0, e=e@entry=0x7faa24ba78c0) at kernel/qapplication.cpp:4567
#37 0x00007faa831d14a0 in QApplication::notify (this=this@entry=0x7fffcafa6a40, receiver=receiver@entry=0x431f3e0, e=e@entry=0x7faa24ba78c0) at kernel/qapplication.cpp:4353
#38 0x00007faa83ed5d1a in KApplication::notify (this=0x7fffcafa6a40, receiver=0x431f3e0, event=0x7faa24ba78c0) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007faa827d84dd in QCoreApplication::notifyInternal (this=0x7fffcafa6a40, receiver=receiver@entry=0x431f3e0, event=event@entry=0x7faa24ba78c0) at kernel/qcoreapplication.cpp:953
#40 0x00007faa827dbb3d in sendEvent (event=0x7faa24ba78c0, receiver=0x431f3e0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1b6cfa0) at kernel/qcoreapplication.cpp:1577
#42 0x00007faa827dbfe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#43 0x00007faa82805f83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#44 postEventSourceDispatch (s=0x1c0d170) at kernel/qeventdispatcher_glib.cpp:287
#45 0x00007faa7a39ee04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007faa7a39f048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007faa7a39f0ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#48 0x00007faa828057a1 in QEventDispatcherGlib::processEvents (this=0x1b56b70, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#49 0x00007faa8326cbe6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#50 0x00007faa827d70af in QEventLoop::processEvents (this=this@entry=0x7fffcafa6520, flags=...) at kernel/qeventloop.cpp:149
#51 0x00007faa827d73a5 in QEventLoop::exec (this=this@entry=0x7fffcafa6520, flags=...) at kernel/qeventloop.cpp:204
#52 0x00007faa827dcb79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#53 0x00007faa831c937c in QApplication::exec () at kernel/qapplication.cpp:3828
#54 0x0000000000492023 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/digikam-3.5.0/core/digikam/main/main.cpp:235

Reproducible: Sometimes

Steps to Reproduce:
1. choos several photos
2. start image editor
3. edit photo, then change to the next one and so on. Crash will occur after some of these steps.