Bug 302437

Summary: Crash when re-searching for faces
Product: [Applications] digikam Reporter: Axel Krebs <axel.krebs>
Component: Faces-EngineAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: caulier.gilles
Priority: NOR    
Version: 2.5.0   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In: 7.0.0
Sentry Crash Report:

Description Axel Krebs 2012-06-24 10:18:23 UTC 
Application: digikam (2.5.0)
KDE Platform Version: 4.8.3 (4.8.3) (Compiled from sources)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-25-generic x86_64
Distribution: Ubuntu 12.04 LTS

-- Information about the crash:
- What I was doing when the application crashed:

When searching for faces, digikam crashes. 
In my collection, many faces are contained already. For some new pics, I attributed names of faces, manually _before_ scanning for new ones.  

Can there be a conflict between _automatically_ detected faces and _manually_ detected faces when using the _same_ names??

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
[Current thread is 1 (Thread 0x7fee01bd5a00 (LWP 2363))]

Thread 24 (Thread 0x7feddd956700 (LWP 2576)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fedfbe404db in wait (time=18446744073709551615, this=0x1a7aae0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1a7a9d8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005ca1d0 in Digikam::ScanController::run (this=0x1ac8750) at /build/buildd/digikam-2.5.0/core/digikam/database/scancontroller.cpp:647
#4  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0x1ac8750) at thread/qthread_unix.cpp:298
#5  0x00007fedf6989e9a in start_thread (arg=0x7feddd956700) at pthread_create.c:308
#6  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 23 (Thread 0x7feddd155700 (LWP 2577)):
#0  0x00007fedfb060b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fedf45d7036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fedd00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7feddd154b50, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fedfbe3cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fedfbf1d9ff in QInotifyFileSystemWatcherEngine::run (this=0x1ac8f10) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0x1ac8f10) at thread/qthread_unix.cpp:298
#9  0x00007fedf6989e9a in start_thread (arg=0x7feddd155700) at pthread_create.c:308
#10 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 22 (Thread 0x7feddc954700 (LWP 2915)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fedfbe404db in wait (time=18446744073709551615, this=0x1904550) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x19042b8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fedff23eff1 in Digikam::ParkingThread::run (this=0x19042a0) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0x19042a0) at thread/qthread_unix.cpp:298
#5  0x00007fedf6989e9a in start_thread (arg=0x7feddc954700) at pthread_create.c:308
#6  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 21 (Thread 0x7fedcac17700 (LWP 2916)):
#0  0x00007fedf4612325 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fedf46125c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d702a in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fedc40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fedcac16b50, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fedfbe3cfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fedfbf1d9ff in QInotifyFileSystemWatcherEngine::run (this=0x222b590) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0x222b590) at thread/qthread_unix.cpp:298
#10 0x00007fedf6989e9a in start_thread (arg=0x7fedcac17700) at pthread_create.c:308
#11 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 20 (Thread 0x7fedbbfaf700 (LWP 11059)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
#1  0x00007fedf18cf293 in ?? () from /usr/lib/libtbb.so.2
#2  0x00007fedf18cf2c9 in ?? () from /usr/lib/libtbb.so.2
#3  0x00007fedf6989e9a in start_thread (arg=0x7fedbbfaf700) at pthread_create.c:308
#4  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 19 (Thread 0x7fedbc3b0700 (LWP 11060)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
#1  0x00007fedf18cf293 in ?? () from /usr/lib/libtbb.so.2
#2  0x00007fedf18cf2c9 in ?? () from /usr/lib/libtbb.so.2
#3  0x00007fedf6989e9a in start_thread (arg=0x7fedbc3b0700) at pthread_create.c:308
#4  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 18 (Thread 0x7fedba50c700 (LWP 11061)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
#1  0x00007fedf18cf293 in ?? () from /usr/lib/libtbb.so.2
#2  0x00007fedf18cf2c9 in ?? () from /usr/lib/libtbb.so.2
#3  0x00007fedf6989e9a in start_thread (arg=0x7fedba50c700) at pthread_create.c:308
#4  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7fed7cfd4700 (LWP 11817)):
#0  0x00007fedfb07a104 in pthread_mutex_unlock (mutex=0x7fed801bea20) at forward.c:184
#1  0x00007fedf46125d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d683b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedf45d6f5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fed804e59c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fed7cfd3b20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fedff23e66e in Digikam::WorkerObjectRunnable::run (this=0xeda29c0) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xd67d2430) at concurrent/qthreadpool.cpp:107
#10 0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xd67d2430) at thread/qthread_unix.cpp:298
#11 0x00007fedf6989e9a in start_thread (arg=0x7fed7cfd4700) at pthread_create.c:308
#12 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7fed6ffff700 (LWP 11818)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed6ffff700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fed6f7fe700 (LWP 11819)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed6f7fe700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fed6dffb700 (LWP 11820)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed6dffb700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7fedbead4700 (LWP 11829)):
#0  0x00007fedfb060b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fedf45d7036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fed804fc2b0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fedbead3b20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fedff23e66e in Digikam::WorkerObjectRunnable::run (this=0xeda29f0) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:196
#7  0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xd6310c90) at concurrent/qthreadpool.cpp:107
#8  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xd6310c90) at thread/qthread_unix.cpp:298
#9  0x00007fedf6989e9a in start_thread (arg=0x7fedbead4700) at pthread_create.c:308
#10 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7fed7dbfa700 (LWP 11835)):
[KCrash Handler]
#6  QString (other=..., this=0x7fed804fec90) at /usr/include/qt4/QtCore/qstring.h:725
#7  node_create (avalue=..., akey=..., aupdate=0x7fed7dbf8e00, adt=0x7fed8001aa70, this=0x7fed804df558) at /usr/include/qt4/QtCore/qmap.h:456
#8  QMap<QString, QVariant>::detach_helper (this=0x7fed804df558) at /usr/include/qt4/QtCore/qmap.h:763
#9  0x00007fedff03e2d1 in detach (this=0x7fed804df558) at /usr/include/qt4/QtCore/qmap.h:205
#10 insert (avalue=..., akey=..., this=0x7fed804df558) at /usr/include/qt4/QtCore/qmap.h:562
#11 Digikam::DImg::setAttribute (this=<optimized out>, key=..., value=...) at /build/buildd/digikam-2.5.0/core/libs/dimg/dimg.cpp:1033
#12 0x00007fedff213b39 in Digikam::PreviewLoadingTask::execute (this=0xe244bbf0) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/previewtask.cpp:269
#13 0x00007fedff1fb68e in Digikam::LoadSaveThread::run (this=0xd68fd020) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/loadsavethread.cpp:118
#14 0x00007fedff240ece in Digikam::DynamicThread::DynamicThreadPriv::run (this=0xd68fd140) at /build/buildd/digikam-2.5.0/core/libs/threads/dynamicthread.cpp:328
#15 0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xeb6f3f0) at concurrent/qthreadpool.cpp:107
#16 0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xeb6f3f0) at thread/qthread_unix.cpp:298
#17 0x00007fedf6989e9a in start_thread (arg=0x7fed7dbfa700) at pthread_create.c:308
#18 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fed8e3f1700 (LWP 11870)):
#0  0x00007fedfb060b03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fedf45d7036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fed802f3a30, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fed8e3f0b20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fedff23e66e in Digikam::WorkerObjectRunnable::run (this=0xeda2990) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:196
#7  0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xd67d7f0) at concurrent/qthreadpool.cpp:107
#8  0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xd67d7f0) at thread/qthread_unix.cpp:298
#9  0x00007fedf6989e9a in start_thread (arg=0x7fed8e3f1700) at pthread_create.c:308
#10 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fed6effd700 (LWP 11886)):
#0  0x00007fedf698bf4a in __pthread_mutex_lock (mutex=0x7fed8031f400) at pthread_mutex_lock.c:87
#1  0x00007fedf46125a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d6b4e in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedf45d6fd6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fed8031c630, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fed6effcb20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fedff23e66e in Digikam::WorkerObjectRunnable::run (this=0xeda2960) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fedfbe334f2 in QThreadPoolThread::run (this=0x2227100) at concurrent/qthreadpool.cpp:107
#10 0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0x2227100) at thread/qthread_unix.cpp:298
#11 0x00007fedf6989e9a in start_thread (arg=0x7fed6effd700) at pthread_create.c:308
#12 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fed9cef5700 (LWP 11888)):
#0  0x00007fedf698bf69 in __pthread_mutex_lock (mutex=0x7fed32e799c0) at pthread_mutex_lock.c:92
#1  0x00007fedf46125a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fedf45d6c36 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fedf45d70a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fedfbf6e426 in QEventDispatcherGlib::processEvents (this=0x7fed8032a790, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fed9cef4b20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fedff23e66e in Digikam::WorkerObjectRunnable::run (this=0xe40aa440) at /build/buildd/digikam-2.5.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xe30e79e0) at concurrent/qthreadpool.cpp:107
#10 0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xe30e79e0) at thread/qthread_unix.cpp:298
#11 0x00007fedf6989e9a in start_thread (arg=0x7fed9cef5700) at pthread_create.c:308
#12 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fedbdad2700 (LWP 11890)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fedbdad2700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fed8ebf2700 (LWP 11891)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed8ebf2700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fed8dbf0700 (LWP 11892)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed8dbf0700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fed7f3fd700 (LWP 11896)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed7f3fd700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fed7ebfc700 (LWP 11897)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed7ebfc700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fed7e3fb700 (LWP 11898)):
#0  0x00007fedf730c3d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#1  0x00007fedf730aefe in ?? () from /usr/lib/x86_64-linux-gnu/libgomp.so.1
#2  0x00007fedf6989e9a in start_thread (arg=0x7fed7e3fb700) at pthread_create.c:308
#3  0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fedbf99c700 (LWP 11916)):
[KCrash Handler]
#6  0x00007fedfafb0445 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007fedfafb3bab in __GI_abort () at abort.c:91
#8  0x00007fedfb8fe69d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007fedfb8fc846 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007fedfb8fc873 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007fedfb8fd28f in __cxa_pure_virtual () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007fedff2075e1 in Digikam::LoadingCache::notifyNewLoadingProcess (this=0x1b23930, process=0xe24509d8, description=...) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/loadingcache.cpp:247
#13 0x00007fedff212bdf in Digikam::PreviewLoadingTask::execute (this=0xe2450800) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/previewtask.cpp:172
#14 0x00007fedff1fb68e in Digikam::LoadSaveThread::run (this=0xd68fd020) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/loadsavethread.cpp:118
#15 0x00007fedff240ece in Digikam::DynamicThread::DynamicThreadPriv::run (this=0xd68fd140) at /build/buildd/digikam-2.5.0/core/libs/threads/dynamicthread.cpp:328
#16 0x00007fedfbe334f2 in QThreadPoolThread::run (this=0xee95600) at concurrent/qthreadpool.cpp:107
#17 0x00007fedfbe3ffcb in QThreadPrivate::start (arg=0xee95600) at thread/qthread_unix.cpp:298
#18 0x00007fedf6989e9a in start_thread (arg=0x7fedbf99c700) at pthread_create.c:308
#19 0x00007fedfb06c4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#20 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fee01bd5a00 (LWP 2363)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:39
#1  0x00007fedfbe3ea9b in _q_futex (val2=0, addr2=0x0, timeout=0x0, val=2, op=0, addr=0x1ad6c50) at thread/qmutex_unix.cpp:99
#2  QMutexPrivate::wait (this=0x1ad6c50, timeout=<optimized out>) at thread/qmutex_unix.cpp:113
#3  0x00007fedfbe3a86d in QMutex::lockInternal (this=<optimized out>) at thread/qmutex.cpp:450
#4  0x00007fedff21fbc6 in Digikam::ThumbnailLoadThread::ThumbnailLoadThreadPriv::checkDescription (this=0x210fc90, description=...) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/thumbnailloadthread.cpp:394
#5  0x00007fedff221b69 in Digikam::ThumbnailLoadThread::ThumbnailLoadThreadPriv::makeDescriptions (this=0x210fc90, filePaths=..., size=<optimized out>) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/thumbnailloadthread.cpp:422
#6  0x00007fedff221f12 in Digikam::ThumbnailLoadThread::findGroup (this=0x2109830, filePaths=..., size=258) at /build/buildd/digikam-2.5.0/core/libs/threadimageio/thumbnailloadthread.cpp:542
#7  0x00007fedfec4ff48 in Digikam::ImageThumbnailModel::prepareThumbnails (this=0x1cf01b0, indexesToPrepare=..., thumbSize=...) at /build/buildd/digikam-2.5.0/core/libs/models/imagethumbnailmodel.cpp:182
#8  0x00000000005ffd3d in Digikam::ImageDelegate::prepareThumbnails (this=<optimized out>, thumbModel=0x1cf01b0, indexes=...) at /build/buildd/digikam-2.5.0/core/digikam/items/imagedelegate.cpp:208
#9  0x00000000005fc69c in Digikam::ImageCategorizedView::paintEvent (this=0x1997670, e=0x7fff246d7180) at /build/buildd/digikam-2.5.0/core/digikam/items/imagecategorizedview.cpp:697
#10 0x00007fedfc9850f6 in QWidget::event (this=0x1997670, event=0x7fff246d7180) at kernel/qwidget.cpp:8508
#11 0x00007fedfcd453b6 in QFrame::event (this=0x1997670, e=0x7fff246d7180) at widgets/qframe.cpp:557
#12 0x00007fedfce5989b in QAbstractItemView::viewportEvent (this=0x1997670, event=0x7fff246d7180) at itemviews/qabstractitemview.cpp:1644
#13 0x00007fedff28c290 in Digikam::DCategorizedView::viewportEvent (this=0x1997670, event=0x7fff246d7180) at /build/buildd/digikam-2.5.0/core/libs/widgets/itemview/dcategorizedview.cpp:947
#14 0x00007fedfbf3f028 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x1e39fb0, event=0x7fff246d7180) at kernel/qcoreapplication.cpp:986
#15 0x00007fedfc93485f in notify_helper (e=0x7fff246d7180, receiver=0x1e39fb0, this=0x18b0d40) at kernel/qapplication.cpp:4555
#16 QApplicationPrivate::notify_helper (this=0x18b0d40, receiver=0x1e39fb0, e=0x7fff246d7180) at kernel/qapplication.cpp:4531
#17 0x00007fedfc939713 in QApplication::notify (this=0x7fff246d9c50, receiver=0x1e39fb0, e=0x7fff246d7180) at kernel/qapplication.cpp:4420
#18 0x00007fedfd66dbb6 in KApplication::notify (this=0x7fff246d9c50, receiver=0x1e39fb0, event=0x7fff246d7180) at ../../kdeui/kernel/kapplication.cpp:311
#19 0x00007fedfbf3ee9c in QCoreApplication::notifyInternal (this=0x7fff246d9c50, receiver=0x1e39fb0, event=0x7fff246d7180) at kernel/qcoreapplication.cpp:876
#20 0x00007fedfc980d96 in sendSpontaneousEvent (event=0x7fff246d7180, receiver=0x1e39fb0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
#21 QWidgetPrivate::drawWidget (this=0x1e39fe0, pdev=0xd68ec80, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5585
#22 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x1e16340, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#23 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x1e16340, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#24 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x19100b0, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#25 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x19100b0, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#26 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x191da80, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#27 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x191da80, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#28 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x1e13830, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#29 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x1e13830, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#30 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x19954a0, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#31 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x19954a0, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#32 0x00007fedfc981a0f in QWidgetPrivate::paintSiblingsRecursive (this=0x1ad0130, pdev=0xd68ec80, siblings=..., index=<optimized out>, rgn=..., offset=..., flags=4, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5794
#33 0x00007fedfc980acc in QWidgetPrivate::drawWidget (this=0x1ad0130, pdev=0xd68ec80, rgn=..., offset=..., flags=<optimized out>, sharedPainter=0x0, backingStore=0x1af0200) at kernel/qwidget.cpp:5638
#34 0x00007fedfcb51b58 in QWidgetBackingStore::sync (this=0x1af0200) at painting/qbackingstore.cpp:1373
#35 0x00007fedfc977ac0 in QWidgetPrivate::syncBackingStore (this=0x1ad0130) at kernel/qwidget.cpp:1891
#36 0x00007fedfc98560c in QWidget::event (this=0x1b36da0, event=0xe2057d60) at kernel/qwidget.cpp:8655
#37 0x00007fedfcd5ec4b in QMainWindow::event (this=0x1b36da0, event=0xe2057d60) at widgets/qmainwindow.cpp:1478
#38 0x00007fedfd7694e8 in KXmlGuiWindow::event (this=0x1b36da0, ev=0xe2057d60) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:126
#39 0x00007fedfc934894 in notify_helper (e=0xe2057d60, receiver=0x1b36da0, this=0x18b0d40) at kernel/qapplication.cpp:4559
#40 QApplicationPrivate::notify_helper (this=0x18b0d40, receiver=0x1b36da0, e=0xe2057d60) at kernel/qapplication.cpp:4531
#41 0x00007fedfc939713 in QApplication::notify (this=0x7fff246d9c50, receiver=0x1b36da0, e=0xe2057d60) at kernel/qapplication.cpp:4420
#42 0x00007fedfd66dbb6 in KApplication::notify (this=0x7fff246d9c50, receiver=0x1b36da0, event=0xe2057d60) at ../../kdeui/kernel/kapplication.cpp:311
#43 0x00007fedfbf3ee9c in QCoreApplication::notifyInternal (this=0x7fff246d9c50, receiver=0x1b36da0, event=0xe2057d60) at kernel/qcoreapplication.cpp:876
#44 0x00007fedfbf42c6a in sendEvent (event=0xe2057d60, receiver=0x1b36da0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#45 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x184e100) at kernel/qcoreapplication.cpp:1500
#46 0x00007fedfbf6df93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#47 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#48 0x00007fedf45d6d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#49 0x00007fedf45d70a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007fedf45d7164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007fedfbf6e3bf in QEventDispatcherGlib::processEvents (this=0x184f5c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#52 0x00007fedfc9dcd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#53 0x00007fedfbf3dc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#54 0x00007fedfbf3ded7 in QEventLoop::exec (this=0x7fff246d9ad0, flags=...) at kernel/qeventloop.cpp:204
#55 0x00007fedfbf42f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#56 0x000000000048bc5d in main (argc=3, argv=<optimized out>) at /build/buildd/digikam-2.5.0/core/digikam/main/main.cpp:232

Possible duplicates by query: bug 293418.

Reported using DrKonqi
Comment 1 caulier.gilles 2012-06-24 20:52:15 UTC 

*** This bug has been marked as a duplicate of bug 279996 ***
Comment 2 caulier.gilles 2019-12-23 06:22:04 UTC 
Problem is fixed with new 7.0.0-beta1 through this long story from this bug

https://bugs.kde.org/show_bug.cgi?id=399923

You can test digiKam 7.0.0-beta1 with bundle available here:

https://download.kde.org/unstable/digikam/

Don't hesitate to give us a fresh feedback about his entry.

Thanks in advance

Gilles Caulier