Application: digikam (3.4.0)
KDE Platform Version: 4.11.2
Qt Version: 4.8.4
Operating System: Linux 3.11.0-12-generic x86_64
Distribution: Ubuntu 13.10

-- Information about the crash:
- What I was doing when the application crashed:
the program is very unstable, frequent random crashes, particularly while importing many new photos into a collection.

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".
[Current thread is 1 (Thread 0x7fcf3fb31a80 (LWP 4406))]

Thread 20 (Thread 0x7fcf1cb0f700 (LWP 4408)):
#0  0x00007fcf3948cf7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf225c7198 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007fcf347e5f6e in start_thread (arg=0x7fcf1cb0f700) at pthread_create.c:311
#3  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 19 (Thread 0x7fcf1616e700 (LWP 4409)):
#0  0x00007fcf3948cf7d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf31db86a4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db8b0a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf23926b66 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fcf31ddd0f5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf347e5f6e in start_thread (arg=0x7fcf1616e700) at pthread_create.c:311
#6  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 18 (Thread 0x7fcf150a4700 (LWP 4410)):
#0  0x00007fcf31df83e8 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31db7d40 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87f9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf31ddd0f5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fcf347e5f6e in start_thread (arg=0x7fcf150a4700) at pthread_create.c:311
#7  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 17 (Thread 0x7fcefffff700 (LWP 4413)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fcf3a27b406 in wait (time=18446744073709551615, this=0x26a3f00) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x26a3e10, mutex=mutex@entry=0x26a3e08, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005d5c4e in Digikam::ScanController::run (this=0x26a3ba0) at /build/buildd/digikam-3.4.0/core/digikam/database/scancontroller.cpp:725
#4  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x26a3ba0) at thread/qthread_unix.cpp:338
#5  0x00007fcf347e5f6e in start_thread (arg=0x7fcefffff700) at pthread_create.c:311
#6  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 16 (Thread 0x7fceff7fe700 (LWP 4414)):
#0  0x00007fcf3948b6bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf31df7670 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db81cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db863b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fcef00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceff7fdab0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceff7fdab0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3a27888f in QThread::exec (this=this@entry=0x25eded0) at thread/qthread.cpp:542
#9  0x00007fcf3a35ad13 in QInotifyFileSystemWatcherEngine::run (this=0x25eded0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x25eded0) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceff7fe700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 15 (Thread 0x7fcf148a3700 (LWP 4416)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fcf3a27b406 in wait (time=18446744073709551615, this=0x2a46ef0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x29f2320, mutex=mutex@entry=0x29f2318, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fcf3d0f416a in Digikam::ParkingThread::run (this=0x29f2300) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x29f2300) at thread/qthread_unix.cpp:338
#5  0x00007fcf347e5f6e in start_thread (arg=0x7fcf148a3700) at pthread_create.c:311
#6  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 14 (Thread 0x7fceebb65700 (LWP 4422)):
#0  0x00007fcf3948b6bd in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fcf31df7670 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db81cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db863b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fced80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceebb64a80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceebb64a80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x5a64c90) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f5eea0) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f5eea0) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceebb65700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 13 (Thread 0x7fceea362700 (LWP 4577)):
#0  0x00007fcf31df80ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df83c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db7d40 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fced007edf0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceea361a80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceea361a80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x7f377c0) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x7fcef4024a80) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x7fcef4024a80) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceea362700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 12 (Thread 0x7fceeb364700 (LWP 4579)):
#0  0x00007fcf31df80ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df8399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db7c17 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fce900132e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceeb363a80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceeb363a80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x4794240) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f60890) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f60890) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceeb364700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 11 (Thread 0x7fcefeffd700 (LWP 4580)):
#0  0x00007fcf31db5b7e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31db7ceb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fce8c0255c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcefeffca80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcefeffca80, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x8087e10) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#8  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f63db0) at concurrent/qthreadpool.cpp:107
#9  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f63db0) at thread/qthread_unix.cpp:338
#10 0x00007fcf347e5f6e in start_thread (arg=0x7fcefeffd700) at pthread_create.c:311
#11 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 10 (Thread 0x7fcee9b61700 (LWP 4581)):
#0  0x00007fcf31df80ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df8399 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db7d59 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fce70024a50, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcee9b60a80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcee9b60a80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x4c602d0) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f65390) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f65390) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fcee9b61700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 9 (Thread 0x7fcee9360700 (LWP 4582)):
#0  0x00007fcf31d89f10 in pthread_mutex_unlock@plt () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df83d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db7d40 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fcedc012670, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcee935fa80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcee935fa80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x56575c0) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f64f30) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f64f30) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fcee9360700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 8 (Thread 0x7fcee736e700 (LWP 4583)):
#0  0x00007fcf347e905f in __pthread_mutex_unlock_usercnt (mutex=0x7fcef4049940, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007fcf31df83d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db8119 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db863b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fcef40354c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcee736da80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcee736da80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x807d920) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f64ad0) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f64ad0) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fcee736e700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7fcee62ab700 (LWP 4584)):
#0  0x00007fcf31df83d1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31db7fbb in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db8612 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fceb8037600, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcee62aaa80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcee62aaa80, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x7f072e0) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#8  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f657f0) at concurrent/qthreadpool.cpp:107
#9  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f657f0) at thread/qthread_unix.cpp:338
#10 0x00007fcf347e5f6e in start_thread (arg=0x7fcee62ab700) at pthread_create.c:311
#11 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7fcee5aaa700 (LWP 4585)):
#0  0x00007fcf31db5b3f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31db7ceb in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fce6c024050, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fcee5aa9a80, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fcee5aa9a80, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x824e4f0) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#8  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f61150) at concurrent/qthreadpool.cpp:107
#9  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f61150) at thread/qthread_unix.cpp:338
#10 0x00007fcf347e5f6e in start_thread (arg=0x7fcee5aaa700) at pthread_create.c:311
#11 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7fcee4aa8700 (LWP 4684)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fcf3a27b406 in wait (time=18446744073709551615, this=0x6b2a970) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x44a26d8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000007be49c in Digikam::CameraController::run (this=0x5baa1c0) at /build/buildd/digikam-3.4.0/core/utilities/importui/backend/cameracontroller.cpp:389
#4  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x5baa1c0) at thread/qthread_unix.cpp:338
#5  0x00007fcf347e5f6e in start_thread (arg=0x7fcee4aa8700) at pthread_create.c:311
#6  0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fceb77fe700 (LWP 5428)):
#0  0x00007fcf31d8a420 in pthread_mutex_lock@plt () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df83a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db8286 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db8708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fcea007faa0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceb77fda80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceb77fda80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3d0f3813 in Digikam::WorkerObjectRunnable::run (this=0x4cc3760) at /build/buildd/digikam-3.4.0/core/libs/threads/threadmanager.cpp:196
#9  0x00007fcf3a26e7ae in QThreadPoolThread::run (this=0x3f5fb70) at concurrent/qthreadpool.cpp:107
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x3f5fb70) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceb77fe700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fceb4ff9700 (LWP 5762)):
#0  0x00007fcf31df80ea in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31df83c9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db80e8 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf31db863b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fcec4012a40, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fceb4ff8ab0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fceb4ff8ab0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcf3a27888f in QThread::exec (this=this@entry=0x593bf50) at thread/qthread.cpp:542
#9  0x00007fcf3a35ad13 in QInotifyFileSystemWatcherEngine::run (this=0x593bf50) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x593bf50) at thread/qthread_unix.cpp:338
#11 0x00007fcf347e5f6e in start_thread (arg=0x7fceb4ff9700) at pthread_create.c:311
#12 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fce7bfff700 (LWP 5763)):
#0  0x00007fcf31db7e2b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fcf31db85c3 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fcf3a3a7a76 in QEventDispatcherGlib::processEvents (this=0x7fce74002880, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fce7bffeab0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fce7bffeab0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcf3a27888f in QThread::exec (this=this@entry=0x6daa6e0) at thread/qthread.cpp:542
#7  0x00007fcf3a35ad13 in QInotifyFileSystemWatcherEngine::run (this=0x6daa6e0) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007fcf3a27af2f in QThreadPrivate::start (arg=0x6daa6e0) at thread/qthread_unix.cpp:338
#9  0x00007fcf347e5f6e in start_thread (arg=0x7fce7bfff700) at pthread_create.c:311
#10 0x00007fcf394999cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fcf3fb31a80 (LWP 4406)):
[KCrash Handler]
#6  x86_64_fallback_frame_state (context=0x7fff681ac508, context=0x7fff681ac508, fs=0x7fff681ac5f8) at ./md-unwind-support.h:58
#7  uw_frame_state_for (context=context@entry=0x7fff681ac508, fs=fs@entry=0x7fff681ac5f8) at ../../../src/libgcc/unwind-dw2.c:1253
#8  0x00007fcf39776f09 in _Unwind_Backtrace (trace=0x7fcf394b10b0 <backtrace_helper>, trace_argument=0x7fff681ac7b8) at ../../../src/libgcc/unwind.inc:290
#9  0x00007fcf394b1246 in __GI___backtrace (array=array@entry=0x7fff681aca18, size=size@entry=64) at ../sysdeps/x86_64/backtrace.c:109
#10 0x00007fcf39413515 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fcf39527240 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:178
#11 0x00007fcf3941e4c6 in malloc_printerr (action=3, str=0x7fcf39523347 "realloc(): invalid pointer", ptr=<optimized out>) at malloc.c:4923
#12 0x00007fcf39422cf0 in __GI___libc_realloc (oldmem=0xbaebc0 <QListData::shared_null>, bytes=1256863064) at malloc.c:2943
#13 0x00007fcf3a297f3e in QListData::realloc (this=0x7fff681ad380, alloc=157107880) at tools/qlist.cpp:221
#14 0x0000000000000446 in ?? ()
#15 0x00007fce54edfccc in QtMobility::mobilityPlugins (plugintype=...) at ../global/qmobilitypluginsearch.h:112
#16 0x00007fce54f7654c in QtMobility::QGeoPositionInfoSourcePrivate::loadDynamicPlugins (plugins=...) at qgeopositioninfosource.cpp:169
#17 0x00007fce54f76372 in QtMobility::QGeoPositionInfoSourcePrivate::plugins (reload=false) at qgeopositioninfosource.cpp:148
#18 0x00007fce54f76426 in QtMobility::QGeoPositionInfoSourcePrivate::pluginsSorted () at qgeopositioninfosource.cpp:161
#19 0x00007fce54f7775e in QtMobility::QGeoPositionInfoSource::createDefaultSource (parent=0x0) at qgeopositioninfosource.cpp:422
#20 0x00007fce55205117 in QtMobilityPositionProviderPluginPrivate (this=0x655a1b0) at ../../../../../src/plugins/positionprovider/qtmobility/QtMobilityPositionProviderPlugin.cpp:32
#21 Marble::QtMobilityPositionProviderPlugin::QtMobilityPositionProviderPlugin (this=0x6c13430) at ../../../../../src/plugins/positionprovider/qtmobility/QtMobilityPositionProviderPlugin.cpp:123
#22 0x00007fce552051cd in qt_plugin_instance () at ../../../../../src/plugins/positionprovider/qtmobility/QtMobilityPositionProviderPlugin.cpp:205
#23 0x00007fcf3a35ebcd in QPluginLoader::instance (this=this@entry=0x5cf03c0) at plugin/qpluginloader.cpp:204
#24 0x00007fcf361924f5 in Marble::PluginManagerPrivate::loadPlugins (this=0x807f570) at ../../../src/lib/PluginManager.cpp:210
#25 0x00007fcf36193318 in loadPlugins (this=<optimized out>) at ../../../src/lib/PluginManager.cpp:185
#26 Marble::PluginManager::renderPlugins (this=0x90b1478) at ../../../src/lib/PluginManager.cpp:73
#27 0x00007fcf3618f5f4 in Marble::LayerManager::Private::addPlugins (this=0x6741d70) at ../../../src/lib/LayerManager.cpp:201
#28 0x00007fcf3618fa77 in Marble::LayerManager::LayerManager (this=0x4371040, model=0x25e49d8, parent=<optimized out>) at ../../../src/lib/LayerManager.cpp:88
#29 0x00007fcf3612b80e in Marble::MarbleMapPrivate::MarbleMapPrivate (this=0x4370f50, parent=0x25e49f0, model=0x25e49d8) at ../../../src/lib/MarbleMap.cpp:168
#30 0x00007fcf3612c3ae in Marble::MarbleMap::MarbleMap (this=0x25e49f0, model=0x25e49d8) at ../../../src/lib/MarbleMap.cpp:266
#31 0x00007fcf36120faf in MarbleWidgetPrivate (parent=0x4f8a7e0, this=0x25e49d0) at ../../../src/lib/MarbleWidget.cpp:103
#32 Marble::MarbleWidget::MarbleWidget (this=0x4f8a7e0, parent=<optimized out>) at ../../../src/lib/MarbleWidget.cpp:165
#33 0x00007fcf3dd06557 in ?? () from /usr/lib/libkgeomap.so.1
#34 0x00007fcf3dcf6743 in KGeoMap::KGeoMapWidget::setActive(bool) () from /usr/lib/libkgeomap.so.1
#35 0x00007fcf3d197dcc in Digikam::ImagePropertiesGPSTab::setActive (this=0x3443f10, state=<optimized out>) at /build/buildd/digikam-3.4.0/core/libs/imageproperties/imagepropertiesgpstab.cpp:438
#36 0x00000000004a6b8b in Digikam::ImagePropertiesSideBarDB::slotChangedTab (this=0x3387400, tab=0x3443f10) at /build/buildd/digikam-3.4.0/core/libs/imageproperties/imagepropertiessidebardb.cpp:375
#37 0x00007fcf3a38ea58 in QMetaObject::activate (sender=0x3387400, m=m@entry=0x7fcf3d4f9820 <Digikam::Sidebar::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff681add60) at kernel/qobject.cpp:3539
#38 0x00007fcf3d118c2f in Digikam::Sidebar::signalChangedTab (this=<optimized out>, _t1=0x3443f10) at /build/buildd/digikam-3.4.0/obj-x86_64-linux-gnu/core/digikam/sidebar.moc:112
#39 0x00007fcf3a38ea58 in QMetaObject::activate (sender=0x34ad470, m=m@entry=0x7fcf3be89960 <KMultiTabBarButton::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff681ade90) at kernel/qobject.cpp:3539
#40 0x00007fcf3bb2f22e in KMultiTabBarButton::clicked (this=<optimized out>, _t1=3) at ./kmultitabbar.moc:216
#41 0x00007fcf3a38ea58 in QMetaObject::activate (sender=sender@entry=0x34ad470, m=m@entry=0x7fcf3b83e2a0 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7fff681adfc0) at kernel/qobject.cpp:3539
#42 0x00007fcf3b3b9732 in QAbstractButton::clicked (this=this@entry=0x34ad470, _t1=true) at .moc/release-shared/moc_qabstractbutton.cpp:220
#43 0x00007fcf3b11cf73 in QAbstractButtonPrivate::emitClicked (this=this@entry=0x34ae490) at widgets/qabstractbutton.cpp:548
#44 0x00007fcf3b11e0e3 in QAbstractButtonPrivate::click (this=this@entry=0x34ae490) at widgets/qabstractbutton.cpp:541
#45 0x00007fcf3b11e1cc in QAbstractButton::mouseReleaseEvent (this=0x34ad470, e=0x7fff681ae4b0) at widgets/qabstractbutton.cpp:1123
#46 0x00007fcf3adbb31e in QWidget::event (this=0x34ad470, event=0x7fff681ae4b0) at kernel/qwidget.cpp:8375
#47 0x00007fcf3ad6bdfc in QApplicationPrivate::notify_helper (this=this@entry=0x23fdc20, receiver=receiver@entry=0x34ad470, e=e@entry=0x7fff681ae4b0) at kernel/qapplication.cpp:4567
#48 0x00007fcf3ad725ad in QApplication::notify (this=this@entry=0x7fff681af130, receiver=receiver@entry=0x34ad470, e=e@entry=0x7fff681ae4b0) at kernel/qapplication.cpp:4110
#49 0x00007fcf3ba75a6a in KApplication::notify (this=0x7fff681af130, receiver=0x34ad470, event=0x7fff681ae4b0) at ../../kdeui/kernel/kapplication.cpp:311
#50 0x00007fcf3a37a8bd in QCoreApplication::notifyInternal (this=0x7fff681af130, receiver=receiver@entry=0x34ad470, event=event@entry=0x7fff681ae4b0) at kernel/qcoreapplication.cpp:946
#51 0x00007fcf3ad71d63 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#52 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x34ad470, event=event@entry=0x7fff681ae4b0, alienWidget=alienWidget@entry=0x34ad470, nativeWidget=nativeWidget@entry=0x2a879a0, buttonDown=buttonDown@entry=0x7fcf3b8502f8 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#53 0x00007fcf3ade67db in QETWidget::translateMouseEvent (this=this@entry=0x2a879a0, event=event@entry=0x7fff681ae830) at kernel/qapplication_x11.cpp:4631
#54 0x00007fcf3ade6079 in QApplication::x11ProcessEvent (this=0x7fff681af130, event=event@entry=0x7fff681ae830) at kernel/qapplication_x11.cpp:3624
#55 0x00007fcf3ae0d922 in x11EventSourceDispatch (s=0x23fda60, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#56 0x00007fcf31db83b6 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#57 0x00007fcf31db8708 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#58 0x00007fcf31db87ac in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#59 0x00007fcf3a3a7a55 in QEventDispatcherGlib::processEvents (this=0x2339030, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#60 0x00007fcf3ae0d9d6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#61 0x00007fcf3a3795ef in QEventLoop::processEvents (this=this@entry=0x7fff681aec10, flags=...) at kernel/qeventloop.cpp:149
#62 0x00007fcf3a3798e5 in QEventLoop::exec (this=this@entry=0x7fff681aec10, flags=...) at kernel/qeventloop.cpp:204
#63 0x00007fcf3a37ee5b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#64 0x00007fcf3ad6a34c in QApplication::exec () at kernel/qapplication.cpp:3828
#65 0x0000000000491ef3 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/digikam-3.4.0/core/digikam/main/main.cpp:235

Reported using DrKonqi