Application: digikam (4.6.0)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-45-generic x86_64
Distribution: Ubuntu 14.04.1 LTS

-- Information about the crash:
- What I was doing when the application crashed:
nothing. crashes when rebuilding thumbnails from database
- Unusual behavior I noticed:
none. crashes when rebuilding thumbnails from database
- Custom settings of the application:
none. crashes when rebuilding thumbnails from database

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
[Current thread is 1 (Thread 0x7fa5d1d78ac0 (LWP 13975))]

Thread 7 (Thread 0x7fa5aae70700 (LWP 13977)):
#0  0x00007fa5ca946cbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fa5afce4248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007fa5c7ae8182 in start_thread (arg=0x7fa5aae70700) at pthread_create.c:312
#3  0x00007fa5ca95400d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fa5a4709700 (LWP 13979)):
[KCrash Handler]
#6  0x00007fa5ca8c84e1 in _IO_acquire_lock_fct (p=<synthetic pointer>) at libioP.h:905
#7  __GI__IO_fread (buf=<optimized out>, size=1, count=2097, fp=0x7fa59c1fc6c0) at iofread.c:41
#8  0x00007fa5c8a4c926 in Exiv2::RiffVideo::infoTagsHandler() () from /usr/lib/x86_64-linux-gnu/libexiv2.so.13
#9  0x00007fa5c8a51855 in Exiv2::RiffVideo::decodeBlock() () from /usr/lib/x86_64-linux-gnu/libexiv2.so.13
#10 0x00007fa5c8a514a8 in Exiv2::RiffVideo::tagDecoder(Exiv2::DataBuf&, unsigned long) () from /usr/lib/x86_64-linux-gnu/libexiv2.so.13
#11 0x00007fa5c8a51855 in Exiv2::RiffVideo::decodeBlock() () from /usr/lib/x86_64-linux-gnu/libexiv2.so.13
#12 0x00007fa5c8a51bc8 in Exiv2::RiffVideo::readMetadata() () from /usr/lib/x86_64-linux-gnu/libexiv2.so.13
#13 0x00007fa5d01759e5 in KExiv2Iface::KExiv2::load(QString const&) const () from /usr/lib/libkexiv2.so.11
#14 0x00007fa5cfa92866 in Digikam::DMetadata::load(QString const&) const () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#15 0x00007fa5cf4f16df in Digikam::ImageScanner::loadFromDisk() () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#16 0x00007fa5cf4f18d0 in Digikam::ImageScanner::newFile(int) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#17 0x00007fa5cf48a6f6 in Digikam::CollectionScanner::scanNewFile(QFileInfo const&, int) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#18 0x00007fa5cf48d86f in Digikam::CollectionScanner::scanAlbum(Digikam::CollectionLocation const&, QString const&) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#19 0x00007fa5cf48d727 in Digikam::CollectionScanner::scanAlbum(Digikam::CollectionLocation const&, QString const&) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#20 0x00007fa5cf48d727 in Digikam::CollectionScanner::scanAlbum(Digikam::CollectionLocation const&, QString const&) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#21 0x00007fa5cf48e133 in Digikam::CollectionScanner::scanAlbumRoot(Digikam::CollectionLocation const&) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#22 0x00007fa5cf48ed0d in Digikam::CollectionScanner::completeScan() () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#23 0x00000000005dad5f in ?? ()
#24 0x00007fa5cb42f32f in QThreadPrivate::start (arg=0x283d600) at thread/qthread_unix.cpp:349
#25 0x00007fa5c7ae8182 in start_thread (arg=0x7fa5a4709700) at pthread_create.c:312
#26 0x00007fa5ca95400d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fa5a3f08700 (LWP 13980)):
#0  0x00007fff659fea1f in ?? ()
#1  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fa5a1d38700 (LWP 13987)):
#0  __GI___pthread_mutex_lock (mutex=0x7fa58c000a60) at ../nptl/pthread_mutex_lock.c:161
#1  0x00007fa5c2aca981 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa5c2a880b0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa5c2a88ea5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa5c2a890ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa5cb55e7be in QEventDispatcherGlib::processEvents (this=0x7fa58c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fa5cb5300af in QEventLoop::processEvents (this=this@entry=0x7fa5a1d37ae0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fa5cb5303a5 in QEventLoop::exec (this=this@entry=0x7fa5a1d37ae0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fa5cb42cc5f in QThread::exec (this=this@entry=0x28d89c0) at thread/qthread.cpp:537
#9  0x00007fa5cb511823 in QInotifyFileSystemWatcherEngine::run (this=0x28d89c0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fa5cb42f32f in QThreadPrivate::start (arg=0x28d89c0) at thread/qthread_unix.cpp:349
#11 0x00007fa5c7ae8182 in start_thread (arg=0x7fa5a1d38700) at pthread_create.c:312
#12 0x00007fa5ca95400d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fa56f7fe700 (LWP 14048)):
#0  0x00007fff659fea1f in ?? ()
#1  0x0000005b00000000 in ?? ()
#2  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fa585ffa700 (LWP 14049)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007fa5cb42f7f4 in wait (time=10, this=0x2896fa0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2896e60, time=10) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fa5cfab62d8 in Digikam::DatabaseCoreBackendPrivate::checkRetrySQLiteLockError(int) () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#4  0x00007fa5cfab6df0 in Digikam::DatabaseCoreBackend::queryErrorHandling(Digikam::SqlQuery&, int) () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#5  0x00007fa5cfab7065 in Digikam::DatabaseCoreBackend::exec(Digikam::SqlQuery&) () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#6  0x00007fa5cfab71a2 in Digikam::DatabaseCoreBackend::execQuery(Digikam::SqlQuery&, QVariant const&, QVariant const&) () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#7  0x00007fa5cfab71cb in Digikam::DatabaseCoreBackend::execSql(Digikam::SqlQuery&, QVariant const&, QVariant const&, QList<QVariant>*, QVariant*) () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#8  0x00007fa5cf468596 in Digikam::AlbumDB::Private::execRelatedImagesQuery(Digikam::SqlQuery&, long long, Digikam::DatabaseRelation::Type) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#9  0x00007fa5cf47b5df in Digikam::AlbumDB::getRelatedImages(QList<long long>, bool, Digikam::DatabaseRelation::Type, bool) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#10 0x00007fa5cf47b7b9 in Digikam::AlbumDB::getImagesRelatedFrom(QList<long long>, Digikam::DatabaseRelation::Type) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#11 0x00007fa5cf4b59ea in Digikam::ImageInfoList::loadGroupImageIds() const () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#12 0x00007fa5cf54e338 in Digikam::ImageFilterModelPreparer::process(Digikam::ImageFilterModelTodoPackage) () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#13 0x00007fa5cf54aa1e in ?? () from /usr/lib/digikam/libdigikamdatabase.so.4.6.0
#14 0x00007fa5cb549c1e in QObject::event (this=0x29288d0, e=<optimized out>) at kernel/qobject.cpp:1194
#15 0x00007fa5cbf23e2c in QApplicationPrivate::notify_helper (this=this@entry=0x26c88c0, receiver=receiver@entry=0x29288d0, e=e@entry=0x7f7b6d0) at kernel/qapplication.cpp:4567
#16 0x00007fa5cbf2a4a0 in QApplication::notify (this=this@entry=0x7fff658ddc10, receiver=receiver@entry=0x29288d0, e=e@entry=0x7f7b6d0) at kernel/qapplication.cpp:4353
#17 0x00007fa5ccc2ecca in KApplication::notify (this=0x7fff658ddc10, receiver=0x29288d0, event=0x7f7b6d0) at ../../kdeui/kernel/kapplication.cpp:311
#18 0x00007fa5cb5314dd in QCoreApplication::notifyInternal (this=0x7fff658ddc10, receiver=receiver@entry=0x29288d0, event=event@entry=0x7f7b6d0) at kernel/qcoreapplication.cpp:953
#19 0x00007fa5cb534b3d in sendEvent (event=0x7f7b6d0, receiver=0x29288d0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#20 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x435b9b0) at kernel/qcoreapplication.cpp:1577
#21 0x00007fa5cb534fe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#22 0x00007fa5cb55ef83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#23 postEventSourceDispatch (s=0x7fa54c002810) at kernel/qeventdispatcher_glib.cpp:287
#24 0x00007fa5c2a88e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007fa5c2a89048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fa5c2a890ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fa5cb55e7a1 in QEventDispatcherGlib::processEvents (this=0x7fa54c0026f0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#28 0x00007fa5cb5300af in QEventLoop::processEvents (this=this@entry=0x7fa585ff9aa0, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007fa5cb5303a5 in QEventLoop::exec (this=0x7fa585ff9aa0, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007fa5cfafdd93 in ?? () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#31 0x00007fa5cb422fee in QThreadPoolThread::run (this=0x435b810) at concurrent/qthreadpool.cpp:108
#32 0x00007fa5cb42f32f in QThreadPrivate::start (arg=0x435b810) at thread/qthread_unix.cpp:349
#33 0x00007fa5c7ae8182 in start_thread (arg=0x7fa585ffa700) at pthread_create.c:312
#34 0x00007fa5ca95400d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fa5d1d78ac0 (LWP 13975)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa5cb42f816 in wait (time=18446744073709551615, this=0x2860350) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x2a32d90, mutex=mutex@entry=0x2a32d68, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fa5cb422242 in QThreadPoolPrivate::waitForDone (this=0x2a32ce0, msecs=msecs@entry=-1) at concurrent/qthreadpool.cpp:295
#4  0x00007fa5cb4236b5 in QThreadPool::~QThreadPool (this=0x2937500, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:438
#5  0x00007fa5cb4236e9 in QThreadPool::~QThreadPool (this=0x2937500, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:440
#6  0x00007fa5cb548168 in QObjectPrivate::deleteChildren (this=this@entry=0x2a7ba90) at kernel/qobject.cpp:1907
#7  0x00007fa5cb54a6ff in QObject::~QObject (this=0x2a39e20, __in_chrg=<optimized out>) at kernel/qobject.cpp:926
#8  0x00007fa5cfafd687 in ?? () from /usr/lib/digikam/libdigikamcore.so.4.6.0
#9  0x00007fa5ca895259 in __run_exit_handlers (status=1, listp=0x7fa5cac186c8 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true) at exit.c:82
#10 0x00007fa5ca8952a5 in __GI_exit (status=<optimized out>) at exit.c:104
#11 0x00007fa5cbf8a878 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:783
#12 0x00007fa5ccc2d880 in KApplication::xioErrhandler (this=0x7fff658ddc10, dpy=0x27104f0) at ../../kdeui/kernel/kapplication.cpp:419
#13 0x00007fa5c93505ee in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#14 0x00007fa5c934dfed in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#15 0x00007fa5c93400db in XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#16 0x00007fa5cbfc562c in x11EventSourceCheck (s=0x26da950) at kernel/qguieventdispatcher_glib.cpp:85
#17 0x00007fa5c2a88a61 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fa5c2a88f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fa5c2a890ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa5cb55e7a1 in QEventDispatcherGlib::processEvents (this=0x25e8fb0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#21 0x00007fa5cbfc5bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#22 0x00007fa5cb5300af in QEventLoop::processEvents (this=this@entry=0x280e830, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007fa5cb5303a5 in QEventLoop::exec (this=0x280e830, flags=...) at kernel/qeventloop.cpp:204
#24 0x00000000005d6ac9 in ?? ()
#25 0x0000000000526667 in ?? ()
#26 0x00007fa5cb549c1e in QObject::event (this=0x2eeef60, e=<optimized out>) at kernel/qobject.cpp:1194
#27 0x00007fa5cbf23e2c in QApplicationPrivate::notify_helper (this=this@entry=0x26c88c0, receiver=receiver@entry=0x2eeef60, e=e@entry=0x28b2810) at kernel/qapplication.cpp:4567
#28 0x00007fa5cbf2a4a0 in QApplication::notify (this=this@entry=0x7fff658ddc10, receiver=receiver@entry=0x2eeef60, e=e@entry=0x28b2810) at kernel/qapplication.cpp:4353
#29 0x00007fa5ccc2ecca in KApplication::notify (this=0x7fff658ddc10, receiver=0x2eeef60, event=0x28b2810) at ../../kdeui/kernel/kapplication.cpp:311
#30 0x00007fa5cb5314dd in QCoreApplication::notifyInternal (this=0x7fff658ddc10, receiver=receiver@entry=0x2eeef60, event=event@entry=0x28b2810) at kernel/qcoreapplication.cpp:953
#31 0x00007fa5cb534b3d in sendEvent (event=0x28b2810, receiver=0x2eeef60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x25e76a0) at kernel/qcoreapplication.cpp:1577
#33 0x00007fa5cb534fe3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1470
#34 0x00007fa5cb55ef83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#35 postEventSourceDispatch (s=0x26cba30) at kernel/qeventdispatcher_glib.cpp:287
#36 0x00007fa5c2a88e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fa5c2a89048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fa5c2a890ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fa5cb55e7a1 in QEventDispatcherGlib::processEvents (this=0x25e8fb0, flags=...) at kernel/qeventdispatcher_glib.cpp:434
#40 0x00007fa5cbfc5bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007fa5cb5300af in QEventLoop::processEvents (this=this@entry=0x7fff658dd6f0, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007fa5cb5303a5 in QEventLoop::exec (this=this@entry=0x7fff658dd6f0, flags=...) at kernel/qeventloop.cpp:204
#43 0x00007fa5cb535b79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#44 0x0000000000497c90 in ?? ()
#45 0x00007fa5ca87aec5 in __libc_start_main (main=0x496a40, argc=5, argv=0x7fff658dde08, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff658dddf8) at libc-start.c:287
#46 0x000000000049a58f in _start ()

Reported using DrKonqi