Bug 228938

Application that crashed: amarok
Version of the application: 2.2.2.90
KDE Version: 4.3.4 (KDE 4.3.4)
Qt Version: 4.6.0
Operating System: Linux 2.6.32-trunk-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

What I was doing when the application crashed:
It crashes every time I try to drag a folder ( or several mp3 files ) to the playlist

 -- Backtrace:
Application: Amarok (amarok), signal: Segmentation fault
The current source language is "auto; currently c".
[Current thread is 1 (Thread 0x7faf1f452770 (LWP 8067))]

Thread 18 (Thread 0x7faf07695910 (LWP 8068)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007faf0dd43e31 in metronom_sync_loop (this=0x1899950) at metronom.c:851
#2  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#3  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 17 (Thread 0x7faf05503910 (LWP 8069)):
#0  0xffffffffff600132 in ?? ()
#1  0x00007fff5d1ff6fb in ?? ()
#2  0x00007faf157d6e5f in *__GI_clock_gettime (clock_id=89140544, tp=0x7faf05502d40) at ../sysdeps/unix/clock_gettime.c:100
#3  0x00007faf1d9a4aef in qt_gettime () at kernel/qcore_unix.cpp:109
#4  0x00007faf1d9a98ed in QTimerInfoList::updateCurrentTime (this=0x7faf05502d40) at kernel/qeventdispatcher_unix.cpp:340
#5  0x00007faf1d9a9915 in QTimerInfoList::timerWait (this=0x7faf05502d40, tm=...) at kernel/qeventdispatcher_unix.cpp:443
#6  0x00007faf1d9a78bc in timerSourcePrepareHelper (src=<value optimized out>, timeout=0x7faf05502e3c) at kernel/qeventdispatcher_glib.cpp:136
#7  0x00007faf1554baea in IA__g_main_context_prepare (context=0x189ce70, priority=<value optimized out>) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2280
#8  0x00007faf1554bec1 in g_main_context_iterate (context=0x189ce70, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2571
#9  0x00007faf1554c3f0 in IA__g_main_context_iteration (context=0x189ce70, may_block=1) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2654
#10 0x00007faf1d9a76a6 in QEventDispatcherGlib::processEvents (this=0x17bc1b0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:409
#11 0x00007faf1d97c4c2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#12 0x00007faf1d97c894 in QEventLoop::exec (this=0x7faf05502fd0, flags=...) at kernel/qeventloop.cpp:201
#13 0x00007faf1d887397 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:487
#14 0x00007faf0df9eaec in ?? () from /usr/lib/qt4/plugins/phonon_backend/phonon_xine.so
#15 0x00007faf1d889ef5 in QThreadPrivate::start (arg=0x189c550) at thread/qthread_unix.cpp:244
#16 0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#17 0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#18 0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 16 (Thread 0x7faf04af9910 (LWP 8072)):
#0  0x00007faf1c35e743 in *__GI___poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=333) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf04affb4e in my_snd_mixer_wait (data=<value optimized out>) at audio_alsa_out.c:150
#2  ao_alsa_handle_event_thread (data=<value optimized out>) at audio_alsa_out.c:166
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7faf042f8910 (LWP 8073)):
#0  0x00007faf0e428594 in ?? () from /usr/lib/libasound.so.2
#1  0x00007faf04b00080 in ao_alsa_write (this_gen=0x18a0790, data=0x1a2a0a0, count=<value optimized out>) at audio_alsa_out.c:799
#2  0x00007faf0dd54f9c in ao_loop (this_gen=<value optimized out>) at audio_out.c:1245
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 14 (Thread 0x7faf036ee910 (LWP 8074)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0dd548eb in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:348
#2  fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7faf02eed910 (LWP 8075)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0dd548eb in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:348
#2  fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 12 (Thread 0x7faf026ec910 (LWP 8076)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0dd548eb in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:348
#2  fifo_peek (this_gen=<value optimized out>) at audio_out.c:388
#3  ao_loop (this_gen=<value optimized out>) at audio_out.c:1015
#4  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7faf009a1910 (LWP 8078)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf1d88ade9 in QWaitConditionPrivate::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf193d92e6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2864780, th=0x2864fb0) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faf193db37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2864fb0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2864fb0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2864fb0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2864fb0) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#8  0x00007faf193d9a1f in ThreadWeaver::ThreadRunHelper::run (this=0x7faf009a1030, parent=0x2864780, th=0x2864fb0) at ../../../threadweaver/Weaver/Thread.cpp:87
#9  0x00007faf193d9f88 in ThreadWeaver::Thread::run (this=0x2864fb0) at ../../../threadweaver/Weaver/Thread.cpp:142
#10 0x00007faf1d889ef5 in QThreadPrivate::start (arg=0x2864fb0) at thread/qthread_unix.cpp:244
#11 0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#12 0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7faef2d78910 (LWP 8079)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf1d88ade9 in QWaitConditionPrivate::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf193d92e6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2864780, th=0x2866600) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faf193db37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2866600) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faf193d9a1f in ThreadWeaver::ThreadRunHelper::run (this=0x7faef2d78030, parent=0x2864780, th=0x2866600) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007faf193d9f88 in ThreadWeaver::Thread::run (this=0x2866600) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007faf1d889ef5 in QThreadPrivate::start (arg=0x2866600) at thread/qthread_unix.cpp:244
#8  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#9  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7faeee7ae910 (LWP 8080)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf1d88ade9 in QWaitConditionPrivate::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf193d92e6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2864780, th=0x22afd60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faf193db37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x22afd60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x22afd60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faf193d9a1f in ThreadWeaver::ThreadRunHelper::run (this=0x7faeee7ae030, parent=0x2864780, th=0x22afd60) at ../../../threadweaver/Weaver/Thread.cpp:87
#7  0x00007faf193d9f88 in ThreadWeaver::Thread::run (this=0x22afd60) at ../../../threadweaver/Weaver/Thread.cpp:142
#8  0x00007faf1d889ef5 in QThreadPrivate::start (arg=0x22afd60) at thread/qthread_unix.cpp:244
#9  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7faeedfad910 (LWP 8081)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf1d88ade9 in QWaitConditionPrivate::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:87
#2  QWaitCondition::wait (this=0x28647a8, mutex=0x2864a70, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:159
#3  0x00007faf193d92e6 in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x2864780, th=0x2297a60) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007faf193db37b in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2297a60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2297a60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#6  0x00007faf193db394 in ThreadWeaver::WorkingHardState::applyForWork (this=0x2864b90, th=0x2297a60) at ../../../threadweaver/Weaver/WorkingHardState.cpp:74
#7  0x00007faf193d9a1f in ThreadWeaver::ThreadRunHelper::run (this=0x7faeedfad030, parent=0x2864780, th=0x2297a60) at ../../../threadweaver/Weaver/Thread.cpp:87
#8  0x00007faf193d9f88 in ThreadWeaver::Thread::run (this=0x2297a60) at ../../../threadweaver/Weaver/Thread.cpp:142
#9  0x00007faf1d889ef5 in QThreadPrivate::start (arg=0x2297a60) at thread/qthread_unix.cpp:244
#10 0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#11 0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7faee2090910 (LWP 8098)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf18c3b9b6 in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7faf18f1b300) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2304
#2  0x00007faf18c3b9f9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7faf18f293cc) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1438
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7faede99b910 (LWP 8951)):
#0  0x00007faf1c362f82 in select () from /lib/libc.so.6
#1  0x00007faf0dd6c5b5 in xine_usec_sleep (usec=<value optimized out>) at utils.c:481
#2  0x00007faf0dd51789 in video_out_loop (this_gen=<value optimized out>) at video_out.c:1246
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7faedddb1910 (LWP 8952)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0dd475eb in fifo_buffer_get (fifo=0x7faefc1a3450) at buffer.c:230
#2  0x00007faf0dd4d50d in video_decoder_loop (stream_gen=<value optimized out>) at video_decoder.c:130
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()
The current source language is "auto; currently c".

Thread 4 (Thread 0x7faedd5b0910 (LWP 8953)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:220
#1  0x00007faf0dd52b07 in fifo_peek_int (this_gen=<value optimized out>) at audio_out.c:355
#2  fifo_remove_int (this_gen=<value optimized out>) at audio_out.c:363
#3  fifo_remove_nonblock (this_gen=<value optimized out>) at audio_out.c:410
#4  ao_get_buffer (this_gen=<value optimized out>) at audio_out.c:1553
#5  0x00007faf0dd60a62 in post_audio_get_buffer (port_gen=<value optimized out>) at post.c:618
#6  0x00007faf0dd60a62 in post_audio_get_buffer (port_gen=<value optimized out>) at post.c:618
#7  0x00007faedb04d0da in mad_decode_data (this_gen=0x2ed0da0, buf=0x7faefc1bd670) at xine_mad_decoder.c:299
#8  0x00007faf0dd4ebca in audio_decoder_loop (stream_gen=<value optimized out>) at audio_decoder.c:362
#9  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#10 0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()
The current source language is "auto; currently asm".

Thread 3 (Thread 0x7faedcdaf910 (LWP 8954)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261
#1  0x00007faf0dd5792b in xine_event_wait (queue=0x7faefc5de4e0) at events.c:56
#2  0x00007faf0dd5799e in listener_loop (queue_gen=<value optimized out>) at events.c:214
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faeeaf12910 (LWP 9058)):
#0  0x00007faf1c362f82 in select () from /lib/libc.so.6
#1  0x00007faf0dd6c5b5 in xine_usec_sleep (usec=<value optimized out>) at utils.c:481
#2  0x00007faf0dd5c6bb in demux_loop (stream_gen=<value optimized out>) at demux.c:370
#3  0x00007faf16f9273a in start_thread (arg=<value optimized out>) at pthread_create.c:300
#4  0x00007faf1c36969d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faf1f452770 (LWP 8067)):
[KCrash Handler]
#5  QModelIndex::data (this=0x21546e8, parent=0x21546c0, index=0x21) at /usr/include/qt4/QtCore/qabstractitemmodel.h:378
#6  Playlist::ViewCommon::trackActionsFor (this=0x21546e8, parent=0x21546c0, index=0x21) at ../../src/playlist/view/PlaylistViewCommon.cpp:111
#7  0x00007faf1e3cadaa in Playlist::ViewCommon::actionsFor (this=0x21546e8, parent=0x21546c0, index=0x21, coverActions=<value optimized out>) at ../../src/playlist/view/PlaylistViewCommon.cpp:89
#8  0x00007faf1e3e509d in Playlist::PrettyListView::startDrag (this=0x21546c0, supportedActions=) at ../../src/playlist/view/listview/PrettyListView.cpp:574
#9  0x00007faf1d23f497 in QAbstractItemView::mouseMoveEvent (this=0x21546c0, event=<value optimized out>) at itemviews/qabstractitemview.cpp:1669
#10 0x00007faf1d256ea1 in QListView::mouseMoveEvent (this=0x7fff5d1ab740, e=0x7fff5d1acac0) at itemviews/qlistview.cpp:778
#11 0x00007faf1cd6a36f in QWidget::event (this=0x21546c0, event=0x7fff5d1acac0) at kernel/qwidget.cpp:7959
#12 0x00007faf1d11573b in QFrame::event (this=0x21546c0, e=0x7fff5d1acac0) at widgets/qframe.cpp:557
#13 0x00007faf1d2438eb in QAbstractItemView::viewportEvent (this=0x21546c0, event=0x7fff5d1acac0) at itemviews/qabstractitemview.cpp:1589
#14 0x00007faf1d97cff8 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x2146ef0, event=0x7fff5d1acac0) at kernel/qcoreapplication.cpp:819
#15 0x00007faf1cd1405c in QApplicationPrivate::notify_helper (this=0x1712130, receiver=0x2146ef0, e=0x7fff5d1acac0) at kernel/qapplication.cpp:4238
#16 0x00007faf1cd1afad in QApplication::notify (this=<value optimized out>, receiver=0x2146ef0, e=0x7fff5d1acac0) at kernel/qapplication.cpp:3822
#17 0x00007faf1e6a4c9a in App::notify (this=0x7fff5d1ab740, receiver=0x21546e8, event=0x2154601) at ../../src/App.cpp:952
#18 0x00007faf1d97dbdc in QCoreApplication::notifyInternal (this=0x7fff5d1ad640, receiver=0x2146ef0, event=0x7fff5d1acac0) at kernel/qcoreapplication.cpp:704
#19 0x00007faf1cd1c8eb in QCoreApplication::sendEvent (receiver=0x2146ef0, event=0x7fff5d1acac0, alienWidget=0x2146ef0, nativeWidget=0x21686c0, buttonDown=<value optimized out>, 
    lastMouseReceiver=..., spontaneous=true) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#20 QApplicationPrivate::sendMouseEvent (receiver=0x2146ef0, event=0x7fff5d1acac0, alienWidget=0x2146ef0, nativeWidget=0x21686c0, buttonDown=<value optimized out>, lastMouseReceiver=..., 
    spontaneous=true) at kernel/qapplication.cpp:2956
#21 0x00007faf1cd9b5b0 in QETWidget::translateMouseEvent (this=0x21686c0, event=<value optimized out>) at kernel/qapplication_x11.cpp:4368
#22 0x00007faf1cd9a75c in QApplication::x11ProcessEvent (this=0x7fff5d1ad640, event=0x7fff5d1ad2a0) at kernel/qapplication_x11.cpp:3501
#23 0x00007faf1cdc49a2 in x11EventSourceDispatch (s=0x1721e90, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#24 0x00007faf1554890e in g_main_dispatch (context=0x1720d20) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:1960
#25 IA__g_main_context_dispatch (context=0x1720d20) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2513
#26 0x00007faf1554c2c8 in g_main_context_iterate (context=0x1720d20, block=<value optimized out>, dispatch=<value optimized out>, self=<value optimized out>)
    at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2591
#27 0x00007faf1554c3f0 in IA__g_main_context_iteration (context=0x1720d20, may_block=1) at /tmp/buildd/glib2.0-2.22.4/glib/gmain.c:2654
#28 0x00007faf1d9a768c in QEventDispatcherGlib::processEvents (this=0x15cae90, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:407
#29 0x00007faf1cdc453f in QGuiEventDispatcherGlib::processEvents (this=0x7fff5d1ab740, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#30 0x00007faf1d97c4c2 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#31 0x00007faf1d97c894 in QEventLoop::exec (this=0x7fff5d1ad5d0, flags=...) at kernel/qeventloop.cpp:201
#32 0x00007faf1d97ed46 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#33 0x000000000040a3c4 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../src/main.cpp:237
The current source language is "auto; currently c".

This bug may be a duplicate of or related to bug 227286

Reported using DrKonqi