Application: digikam (4.0.0)
KDE Platform Version: 4.14.2
Qt Version: 4.8.6
Operating System: Linux 3.13.0-37-generic x86_64
Distribution: Linux Mint 17.1 Rebecca

-- Information about the crash:
- What I was doing when the application crashed: I was trying to download photos in jpeg format only from a Sony a6000. This crash is repeatable, however, sometimes I can successfully download the photos. The crash is rather random. Running Linux Mint 17.1 LTS with KDE desktop.

The crash can be reproduced sometimes.

-- 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 0x7fb6b6f00ac0 (LWP 3652))]

Thread 7 (Thread 0x7fb693649700 (LWP 3654)):
#0  0x00007fb6b0050cbd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fb697da8248 in ?? () from /lib/x86_64-linux-gnu/libusb-1.0.so.0
#2  0x00007fb6ac527182 in start_thread (arg=0x7fb693649700) at pthread_create.c:312
#3  0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 6 (Thread 0x7fb68d22c700 (LWP 3655)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb6b1d37816 in wait (time=18446744073709551615, this=0x190b4d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x192cfc0, mutex=mutex@entry=0x192cfb8, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000005e3d9e in Digikam::ScanController::run (this=0x1947420) at /build/buildd/digikam-4.0.0/core/digikam/database/scancontroller.cpp:725
#4  0x00007fb6b1d3732f in QThreadPrivate::start (arg=0x1947420) at thread/qthread_unix.cpp:349
#5  0x00007fb6ac527182 in start_thread (arg=0x7fb68d22c700) at pthread_create.c:312
#6  0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 5 (Thread 0x7fb68ca2b700 (LWP 3656)):
#0  0x00007fb6a909361d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb6a90939a9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb6a9051a59 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb6a9051f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb6a90520ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb6b1e667be in QEventDispatcherGlib::processEvents (this=0x7fb6800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fb6b1e380af in QEventLoop::processEvents (this=this@entry=0x7fb68ca2aae0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fb6b1e383a5 in QEventLoop::exec (this=this@entry=0x7fb68ca2aae0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fb6b1d34c5f in QThread::exec (this=this@entry=0x192d3b0) at thread/qthread.cpp:537
#9  0x00007fb6b1e19823 in QInotifyFileSystemWatcherEngine::run (this=0x192d3b0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fb6b1d3732f in QThreadPrivate::start (arg=0x192d3b0) at thread/qthread_unix.cpp:349
#11 0x00007fb6ac527182 in start_thread (arg=0x7fb68ca2b700) at pthread_create.c:312
#12 0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 4 (Thread 0x7fb687fff700 (LWP 3658)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb6b1d37816 in wait (time=18446744073709551615, this=0x1d2db10) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1c0f630, mutex=mutex@entry=0x1c0f628, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fb6b45778aa in Digikam::ParkingThread::run (this=0x1c0f610) at /build/buildd/digikam-4.0.0/core/libs/threads/threadmanager.cpp:119
#4  0x00007fb6b1d3732f in QThreadPrivate::start (arg=0x1c0f610) at thread/qthread_unix.cpp:349
#5  0x00007fb6ac527182 in start_thread (arg=0x7fb687fff700) at pthread_create.c:312
#6  0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7fb687015700 (LWP 3659)):
#0  __GI___pthread_mutex_lock (mutex=0x7fb674000a60) at ../nptl/pthread_mutex_lock.c:74
#1  0x00007fb6a9093981 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb6a9051a6c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb6a9051f7b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb6a90520ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb6b1e667be in QEventDispatcherGlib::processEvents (this=0x7fb6740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#6  0x00007fb6b1e380af in QEventLoop::processEvents (this=this@entry=0x7fb687014ae0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fb6b1e383a5 in QEventLoop::exec (this=this@entry=0x7fb687014ae0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fb6b1d34c5f in QThread::exec (this=this@entry=0x1f616a0) at thread/qthread.cpp:537
#9  0x00007fb6b1e19823 in QInotifyFileSystemWatcherEngine::run (this=0x1f616a0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fb6b1d3732f in QThreadPrivate::start (arg=0x1f616a0) at thread/qthread_unix.cpp:349
#11 0x00007fb6ac527182 in start_thread (arg=0x7fb687015700) at pthread_create.c:312
#12 0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7fb62ccc0700 (LWP 3698)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb6b1d37816 in wait (time=18446744073709551615, this=0x42616d0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4172408, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00000000007e585c in Digikam::CameraController::run (this=0x4260750) at /build/buildd/digikam-4.0.0/core/utilities/importui/backend/cameracontroller.cpp:400
#4  0x00007fb6b1d3732f in QThreadPrivate::start (arg=0x4260750) at thread/qthread_unix.cpp:349
#5  0x00007fb6ac527182 in start_thread (arg=0x7fb62ccc0700) at pthread_create.c:312
#6  0x00007fb6b005e00d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7fb6b6f00ac0 (LWP 3652)):
[KCrash Handler]
#6  Digikam::Album::globalID (this=0x0) at /build/buildd/digikam-4.0.0/core/digikam/album/album.cpp:227
#7  0x00000000007d3d43 in Digikam::ImportUI::slotDownload (this=0x3a07d10, onlySelected=<optimized out>, deleteAfter=<optimized out>, album=0x0) at /build/buildd/digikam-4.0.0/core/utilities/importui/main/importui.cpp:1475
#8  0x00000000007d4d26 in slotDownloadSelected (this=<optimized out>) at /build/buildd/digikam-4.0.0/core/utilities/importui/main/importui.cpp:1395
#9  Digikam::ImportUI::qt_static_metacall (_o=0x3a07d10, _c=33066904, _id=0, _a=0x10) at /build/buildd/digikam-4.0.0/obj-x86_64-linux-gnu/core/utilities/importui/importui.moc:199
#10 0x00007fb6b1e4d87a in QMetaObject::activate (sender=sender@entry=0x4267ec0, m=m@entry=0x7fb6b1a01de0 <QAction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fffa108cf70) at kernel/qobject.cpp:3539
#11 0x00007fb6b0f51a62 in QAction::triggered (this=this@entry=0x4267ec0, _t1=false) at .moc/release-shared/moc_qaction.cpp:276
#12 0x00007fb6b0f53433 in QAction::activate (this=this@entry=0x4267ec0, event=event@entry=QAction::Trigger) at kernel/qaction.cpp:1257
#13 0x00007fb6b1381489 in QMenuPrivate::activateCausedStack (this=this@entry=0x330efa0, causedStack=..., action=action@entry=0x4267ec0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1038
#14 0x00007fb6b13859b9 in QMenuPrivate::activateAction (this=0x330efa0, action=0x4267ec0, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1130
#15 0x00007fb6b1389385 in QMenu::mouseReleaseEvent (this=this@entry=0x42c0d60, e=e@entry=0x7fffa108d6a0) at widgets/qmenu.cpp:2372
#16 0x00007fb6b293a615 in KMenu::mouseReleaseEvent (this=0x42c0d60, e=0x7fffa108d6a0) at ../../kdeui/widgets/kmenu.cpp:464
#17 0x00007fb6b0fa750a in QWidget::event (this=this@entry=0x42c0d60, event=event@entry=0x7fffa108d6a0) at kernel/qwidget.cpp:8376
#18 0x00007fb6b13897bb in QMenu::event (this=0x42c0d60, e=0x7fffa108d6a0) at widgets/qmenu.cpp:2481
#19 0x00007fb6b0f57e2c in QApplicationPrivate::notify_helper (this=this@entry=0x180acc0, receiver=receiver@entry=0x42c0d60, e=e@entry=0x7fffa108d6a0) at kernel/qapplication.cpp:4567
#20 0x00007fb6b0f5e5dd in QApplication::notify (this=this@entry=0x7fffa108e2e0, receiver=receiver@entry=0x42c0d60, e=e@entry=0x7fffa108d6a0) at kernel/qapplication.cpp:4110
#21 0x00007fb6b2883cca in KApplication::notify (this=0x7fffa108e2e0, receiver=0x42c0d60, event=0x7fffa108d6a0) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007fb6b1e394dd in QCoreApplication::notifyInternal (this=0x7fffa108e2e0, receiver=receiver@entry=0x42c0d60, event=event@entry=0x7fffa108d6a0) at kernel/qcoreapplication.cpp:953
#23 0x00007fb6b0f5dd93 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x42c0d60, event=event@entry=0x7fffa108d6a0, alienWidget=alienWidget@entry=0x0, nativeWidget=nativeWidget@entry=0x42c0d60, buttonDown=buttonDown@entry=0x7fb6b1a3d318 <qt_button_down>, lastMouseReceiver=..., spontaneous=spontaneous@entry=true) at kernel/qapplication.cpp:3178
#25 0x00007fb6b0fd2cfc in QETWidget::translateMouseEvent (this=this@entry=0x42c0d60, event=event@entry=0x7fffa108d9f0) at kernel/qapplication_x11.cpp:4568
#26 0x00007fb6b0fd2269 in QApplication::x11ProcessEvent (this=0x7fffa108e2e0, event=event@entry=0x7fffa108d9f0) at kernel/qapplication_x11.cpp:3627
#27 0x00007fb6b0ff9b02 in x11EventSourceDispatch (s=0x17f11e0, callback=0x0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#28 0x00007fb6a9051e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fb6a9052048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fb6a90520ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fb6b1e667be in QEventDispatcherGlib::processEvents (this=0x1752760, flags=...) at kernel/qeventdispatcher_glib.cpp:436
#32 0x00007fb6b0ff9bb6 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#33 0x00007fb6b1e380af in QEventLoop::processEvents (this=this@entry=0x7fffa108ddc0, flags=...) at kernel/qeventloop.cpp:149
#34 0x00007fb6b1e383a5 in QEventLoop::exec (this=this@entry=0x7fffa108ddc0, flags=...) at kernel/qeventloop.cpp:204
#35 0x00007fb6b1e3db79 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#36 0x00007fb6b0f5637c in QApplication::exec () at kernel/qapplication.cpp:3828
#37 0x00000000004948f0 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/digikam-4.0.0/core/digikam/main/main.cpp:236

Possible duplicates by query: bug 330676.

Reported using DrKonqi