[Digikam-devel] [Bug 293418] New: Crashes when scanning for faces

Ramon 123rsv at gmail.com
Mon Feb 6 06:46:22 GMT 2012 

https://bugs.kde.org/show_bug.cgi?id=293418

           Summary: Crashes when scanning for faces
           Product: digikam
           Version: 2.1.1
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
        AssignedTo: digikam-devel at kde.org
        ReportedBy: 123rsv at gmail.com


Application: digikam (2.1.1)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.0.0-15-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
Everytime I try to scan my photo directory to find all the faces, Digikam
crashes. I have tried with different accuracy settings (80,91, 100) and they
all crash.The amount of work it manages to do before crashing varies. I was not
doing anything else in the computer, but Spideroak and Dropbox are running in
the background. The pictures are stocked in a folder within Dropbox. I'm
running Ubuntu 11.10 in a 64bit HP portable computer. Packages are updated
daily

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Aborted
pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
    in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
[Current thread is 1 (Thread 0x7f030874aa20 (LWP 11402))]

Thread 16 (Thread 0x7f02e49e1700 (LWP 11404)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f03030b91ab in wait (time=18446744073709551615, this=0x1bda4f0) at
thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1bda398,
time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00000000005c2e20 in Digikam::ScanController::run (this=0x1bda010) at
/build/buildd/digikam-2.1.1/core/digikam/database/scancontroller.cpp:647
#4  0x00007f03030b8d05 in QThreadPrivate::start (arg=0x1bda010) at
thread/qthread_unix.cpp:331
#5  0x00007f02fddf6efc in start_thread (arg=0x7f02e49e1700) at
pthread_create.c:304
#6  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7f02e41e0700 (LWP 11405)):
#0  0x00007f02fbed302a in g_main_context_prepare () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f02fbed3dfd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f02fbed4429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f03031caf3e in QEventDispatcherGlib::processEvents (this=0x1bf3930,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007f030319ecf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f030319eef7 in QEventLoop::exec (this=0x7f02e41dfb30, flags=...) at
kernel/qeventloop.cpp:201
#6  0x00007f03030b627f in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:498
#7  0x00007f0303181cbf in QInotifyFileSystemWatcherEngine::run (this=0x1bf2fe0)
at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f03030b8d05 in QThreadPrivate::start (arg=0x1bf2fe0) at
thread/qthread_unix.cpp:331
#9  0x00007f02fddf6efc in start_thread (arg=0x7f02e41e0700) at
pthread_create.c:304
#10 0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7f02e39df700 (LWP 11407)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f03030b91ab in wait (time=18446744073709551615, this=0x1e0bbf0) at
thread/qwaitcondition_unix.cpp:88
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1e86378,
time=18446744073709551615) at thread/qwaitcondition_unix.cpp:160
#3  0x00007f0306002737 in Digikam::ParkingThread::run (this=0x1e86360) at
/build/buildd/digikam-2.1.1/core/libs/threads/threadmanager.cpp:119
#4  0x00007f03030b8d05 in QThreadPrivate::start (arg=0x1e86360) at
thread/qthread_unix.cpp:331
#5  0x00007f02fddf6efc in start_thread (arg=0x7f02e39df700) at
pthread_create.c:304
#6  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7f02c97f2700 (LWP 11428)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f02c97f1820 in ?? ()
#2  0x00007fff3d5e67e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 12 (Thread 0x7f02c8ff1700 (LWP 11429)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f02c8ff0820 in ?? ()
#2  0x00007fff3d5e67e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 11 (Thread 0x7f02c60ff700 (LWP 11435)):
#0  0xffffffffff60017b in ?? ()
#1  0x00007f02c60fe820 in ?? ()
#2  0x00007fff3d5e67e7 in ?? ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Thread 10 (Thread 0x7f02d1387700 (LWP 11450)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02d1387700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f02b3fff700 (LWP 11455)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02b3fff700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f02b37fe700 (LWP 11457)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02b37fe700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f02c6900700 (LWP 11458)):
[KCrash Handler]
#6  ref (this=0x64496d6f74737543) at
/usr/include/qt4/QtCore/qatomic_x86_64.h:121
#7  QString (other=..., this=0x7f02bd2b7e10) at
/usr/include/qt4/QtCore/qstring.h:729
#8  node_create (avalue=..., akey=..., aupdate=0x7f02c68fde80,
adt=0x7f02bcc42400, this=0x406d508) at /usr/include/qt4/QtCore/qmap.h:453
#9  QMap<QString, QVariant>::detach_helper (this=0x406d508) at
/usr/include/qt4/QtCore/qmap.h:760
#10 0x00007f0305e09d2c in detach (this=0x406d508) at
/usr/include/qt4/QtCore/qmap.h:202
#11 insert (avalue=..., akey=..., this=0x406d508) at
/usr/include/qt4/QtCore/qmap.h:559
#12 Digikam::DImg::setAttribute (this=<optimized out>, key=..., value=...) at
/build/buildd/digikam-2.1.1/core/libs/dimg/dimg.cpp:1005
#13 0x00007f0305e2dc81 in Digikam::JPEGLoader::load (this=0x7f02c68fe9a0,
filePath=<optimized out>, observer=0x406d140) at
/build/buildd/digikam-2.1.1/core/libs/dimg/loaders/jpegloader.cpp:612
#14 0x00007f0305e0ade6 in Digikam::DImg::load (this=0x406d320, filePath=...,
loadFlagsInt=63, observer=0x406d140, rawDecodingSettings=...) at
/build/buildd/digikam-2.1.1/core/libs/dimg/dimg.cpp:426
#15 0x00007f0305e0c307 in Digikam::DImg::load (this=0x406d320, filePath=...,
observer=0x406d140, rawDecodingSettings=...) at
/build/buildd/digikam-2.1.1/core/libs/dimg/dimg.cpp:372
#16 0x00007f0305fd6f44 in Digikam::PreviewLoadingTask::execute (this=0x406d130)
at /build/buildd/digikam-2.1.1/core/libs/threadimageio/previewtask.cpp:294
#17 0x00007f0305fbf7e6 in Digikam::LoadSaveThread::run (this=0x40df9c0) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/loadsavethread.cpp:118
#18 0x00007f0306003e3e in Digikam::DynamicThread::DynamicThreadPriv::run
(this=0x40dfaf0) at
/build/buildd/digikam-2.1.1/core/libs/threads/dynamicthread.cpp:328
#19 0x00007f03030ad795 in QThreadPoolThread::run (this=0x40e2300) at
concurrent/qthreadpool.cpp:106
#20 0x00007f03030b8d05 in QThreadPrivate::start (arg=0x40e2300) at
thread/qthread_unix.cpp:331
#21 0x00007f02fddf6efc in start_thread (arg=0x7f02c6900700) at
pthread_create.c:304
#22 0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#23 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f02c48fb700 (LWP 11460)):
#0  0x00007f030836b8c2 in QSqlResult::QSqlResult (this=0x7f02dcd26b60,
db=0x7f02deb5b3e0) at kernel/qsqlresult.cpp:250
#1  0x00007f030836f14d in QSqlCachedResult::QSqlCachedResult
(this=0x7f02dcd26b60, db=<optimized out>) at kernel/qsqlcachedresult.cpp:145
#2  0x00007f02e2fd892e in QSQLiteResult::QSQLiteResult (this=0x7f02dcd26b60,
db=0x7f02deb5b3e0) at ../../../sql/drivers/sqlite/qsql_sqlite.cpp:285
#3  0x00007f02e2fd8c19 in QSQLiteDriver::createResult (this=0x7f02deb5b3e0) at
../../../sql/drivers/sqlite/qsql_sqlite.cpp:560
#4  0x00007f030835fbac in qInit (q=0x7f02c48f9b88, query=..., db=<optimized
out>) at kernel/qsqlquery.cpp:267
#5  0x00007f030835fc72 in QSqlQuery::QSqlQuery (this=0x7f02c48f9b88, db=...) at
kernel/qsqlquery.cpp:297
#6  0x00007f0305fad51c in Digikam::SqlQuery::SqlQuery (this=0x7f02c48f9b80,
db=<optimized out>) at
/build/buildd/digikam-2.1.1/core/libs/database/sqlquery.cpp:35
#7  0x00007f0305f95d92 in Digikam::DatabaseCoreBackend::getQuery
(this=<optimized out>) at
/build/buildd/digikam-2.1.1/core/libs/database/databasecorebackend.cpp:1504
#8  0x00007f0305f97391 in Digikam::DatabaseCoreBackend::prepareQuery
(this=0x1dbde40, sql=...) at
/build/buildd/digikam-2.1.1/core/libs/database/databasecorebackend.cpp:1457
#9  0x00007f0305f977d1 in Digikam::DatabaseCoreBackend::execQuery
(this=0x1dbde40, sql=<optimized out>, boundValue1=..., boundValue2=...,
boundValue3=..., boundValue4=...) at
/build/buildd/digikam-2.1.1/core/libs/database/databasecorebackend.cpp:1021
#10 0x00007f0305f99655 in Digikam::DatabaseCoreBackend::execSql
(this=0x1dbde40, sql=<optimized out>, boundValue1=<optimized out>,
boundValue2=<optimized out>, boundValue3=<optimized out>,
boundValue4=<optimized out>, values=0x0, lastInsertId=0x7f02c48f9c80) at
/build/buildd/digikam-2.1.1/core/libs/database/databasecorebackend.cpp:921
#11 0x00007f0305fa4eb3 in Digikam::ThumbnailDB::insertThumbnail
(this=0x1c36320, info=..., lastInsertId=0x7f02c48f9d60) at
/build/buildd/digikam-2.1.1/core/libs/database/thumbnaildb.cpp:262
#12 0x00007f0305fda0c8 in Digikam::ThumbnailCreator::storeInDatabase
(this=<optimized out>, info=..., image=<optimized out>) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/thumbnailcreator.cpp:753
#13 0x00007f0305fdcee3 in Digikam::ThumbnailCreator::store (this=0x40e1430,
path=..., i=..., rect=..., isFace=true) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/thumbnailcreator.cpp:389
#14 0x000000000067dd27 in Digikam::FaceIface::storeThumbnails (this=<optimized
out>, thread=0x40e1020, filePath=..., databaseFaces=<optimized out>, image=...)
at /build/buildd/digikam-2.1.1/core/utilities/facedetection/faceiface.cpp:240
#15 0x00000000006879a0 in Digikam::DatabaseWriter::process (this=0x40e0d80,
package=...) at
/build/buildd/digikam-2.1.1/core/utilities/facedetection/facepipeline.cpp:569
#16 0x0000000000687d2a in Digikam::DatabaseWriter::qt_metacall (this=0x40e0d80,
_c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7f02bd29e910) at
/build/buildd/digikam-2.1.1/obj-x86_64-linux-gnu/core/digikam/facepipeline_p.moc:446
#17 0x00007f03031b6a5e in QObject::event (this=0x40e0d80, e=<optimized out>) at
kernel/qobject.cpp:1217
#18 0x00007f0303ba0474 in notify_helper (e=0x7f02bcc12b70, receiver=0x40e0d80,
this=0x19713f0) at kernel/qapplication.cpp:4486
#19 QApplicationPrivate::notify_helper (this=0x19713f0, receiver=0x40e0d80,
e=0x7f02bcc12b70) at kernel/qapplication.cpp:4458
#20 0x00007f0303ba52e1 in QApplication::notify (this=0x7fff3d541090,
receiver=0x40e0d80, e=0x7f02bcc12b70) at kernel/qapplication.cpp:4365
#21 0x00007f03048b5466 in KApplication::notify (this=0x7fff3d541090,
receiver=0x40e0d80, event=0x7f02bcc12b70) at
../../kdeui/kernel/kapplication.cpp:311
#22 0x00007f030319fafc in QCoreApplication::notifyInternal
(this=0x7fff3d541090, receiver=0x40e0d80, event=0x7f02bcc12b70) at
kernel/qcoreapplication.cpp:787
#23 0x00007f03031a351f in sendEvent (event=0x7f02bcc12b70, receiver=0x40e0d80)
at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0,
data=0x4084030) at kernel/qcoreapplication.cpp:1428
#25 0x00007f03031caa73 in sendPostedEvents () at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#26 postEventSourceDispatch (s=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:277
#27 0x00007f02fbed3a5d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f02fbed4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f02fbed4429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f03031caed6 in QEventDispatcherGlib::processEvents (this=0x34ea780,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#31 0x00007f030319ecf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#32 0x00007f030319eef7 in QEventLoop::exec (this=0x7f02c48fab00, flags=...) at
kernel/qeventloop.cpp:201
#33 0x00007f0306001e41 in Digikam::WorkerObjectRunnable::run (this=0x1c1f8f0)
at /build/buildd/digikam-2.1.1/core/libs/threads/threadmanager.cpp:196
#34 0x00007f03030ad795 in QThreadPoolThread::run (this=0x40a4710) at
concurrent/qthreadpool.cpp:106
#35 0x00007f03030b8d05 in QThreadPrivate::start (arg=0x40a4710) at
thread/qthread_unix.cpp:331
#36 0x00007f02fddf6efc in start_thread (arg=0x7f02c48fb700) at
pthread_create.c:304
#37 0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#38 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f02c50fc700 (LWP 11462)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02c50fc700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f02d61b2700 (LWP 11472)):
[KCrash Handler]
#6  0x00007f03022b03a5 in __GI_raise (sig=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f03022b3b0b in __GI_abort () at abort.c:92
#8  0x00007f0302b6ed7d in __gnu_cxx::__verbose_terminate_handler() () from
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007f0302b6cf26 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007f0302b6cf53 in std::terminate() () from
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007f0302b6d96f in __cxa_pure_virtual () from
/usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007f0305fcaee3 in Digikam::LoadingCache::notifyNewLoadingProcess
(this=0x1dbb230, process=0x4079018, description=...) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/loadingcache.cpp:247
#13 0x00007f0305fd61c9 in Digikam::PreviewLoadingTask::execute (this=0x4078e50)
at /build/buildd/digikam-2.1.1/core/libs/threadimageio/previewtask.cpp:172
#14 0x00007f0305fbf7e6 in Digikam::LoadSaveThread::run (this=0x40df9c0) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/loadsavethread.cpp:118
#15 0x00007f0306003e3e in Digikam::DynamicThread::DynamicThreadPriv::run
(this=0x40dfaf0) at
/build/buildd/digikam-2.1.1/core/libs/threads/dynamicthread.cpp:328
#16 0x00007f03030ad795 in QThreadPoolThread::run (this=0x3b10b60) at
concurrent/qthreadpool.cpp:106
#17 0x00007f03030b8d05 in QThreadPrivate::start (arg=0x3b10b60) at
thread/qthread_unix.cpp:331
#18 0x00007f02fddf6efc in start_thread (arg=0x7f02d61b2700) at
pthread_create.c:304
#19 0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f02c87f0700 (LWP 11476)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02c87f0700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f02c58fe700 (LWP 11479)):
#0  0x00007f02fe7773b6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007f02fe775ede in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007f02fddf6efc in start_thread (arg=0x7f02c58fe700) at
pthread_create.c:304
#3  0x00007f030235b89d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f030874aa20 (LWP 11402)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f03030b7d13 in QMutexPrivate::wait (this=0x1dbf650, timeout=-1) at
thread/qmutex_unix.cpp:84
#2  0x00007f03030b4365 in QMutex::lock (this=0x1dbac60) at
thread/qmutex.cpp:204
#3  0x00007f0305fcb4f2 in
Digikam::ClassicLoadingCacheFileWatch::slotUpdateDirWatch (this=0x1c1ef00) at
/build/buildd/digikam-2.1.1/core/libs/threadimageio/loadingcache.cpp:459
#4  0x00007f0305fcd4fc in Digikam::ClassicLoadingCacheFileWatch::qt_metacall
(this=0x1c1ef00, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>,
_a=0x4f3f120) at
/build/buildd/digikam-2.1.1/obj-x86_64-linux-gnu/core/digikam/loadingcache.moc:82
#5  0x00000000005c1a40 in
Digikam::ScanControllerLoadingCacheFileWatch::qt_metacall (this=0x1c1ef00,
_c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x4f3f120) at
/build/buildd/digikam-2.1.1/obj-x86_64-linux-gnu/core/digikam/scancontroller.moc:67
#6  0x00007f03031b6a5e in QObject::event (this=0x1c1ef00, e=<optimized out>) at
kernel/qobject.cpp:1217
#7  0x00007f0303ba0474 in notify_helper (e=0x4227620, receiver=0x1c1ef00,
this=0x19713f0) at kernel/qapplication.cpp:4486
#8  QApplicationPrivate::notify_helper (this=0x19713f0, receiver=0x1c1ef00,
e=0x4227620) at kernel/qapplication.cpp:4458
#9  0x00007f0303ba52e1 in QApplication::notify (this=0x7fff3d541090,
receiver=0x1c1ef00, e=0x4227620) at kernel/qapplication.cpp:4365
#10 0x00007f03048b5466 in KApplication::notify (this=0x7fff3d541090,
receiver=0x1c1ef00, event=0x4227620) at ../../kdeui/kernel/kapplication.cpp:311
#11 0x00007f030319fafc in QCoreApplication::notifyInternal
(this=0x7fff3d541090, receiver=0x1c1ef00, event=0x4227620) at
kernel/qcoreapplication.cpp:787
#12 0x00007f03031a351f in sendEvent (event=0x4227620, receiver=0x1c1ef00) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#13 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0,
data=0x1914bd0) at kernel/qcoreapplication.cpp:1428
#14 0x00007f03031caa73 in sendPostedEvents () at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#15 postEventSourceDispatch (s=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:277
#16 0x00007f02fbed3a5d in g_main_context_dispatch () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f02fbed4258 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f02fbed4429 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f03031caed6 in QEventDispatcherGlib::processEvents (this=0x1916270,
flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#20 0x00007f0303c4810e in QGuiEventDispatcherGlib::processEvents
(this=<optimized out>, flags=<optimized out>) at
kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f030319ecf2 in QEventLoop::processEvents (this=<optimized out>,
flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f030319eef7 in QEventLoop::exec (this=0x7fff3d540f10, flags=...) at
kernel/qeventloop.cpp:201
#23 0x00007f03031a3789 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1064
#24 0x00000000004893fd in main (argc=5, argv=<optimized out>) at
/build/buildd/digikam-2.1.1/core/digikam/main/main.cpp:232

Reported using DrKonqi

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