Bug 300737

Application: kontact (4.8.3)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.1
Operating System: Linux 3.3.0-trunk-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
Kontact crashed when editing Reminder settings in Calendar. This does not happen very often, so it is hard to reproduce on purpose.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbafe4a5760 (LWP 11516))]

Thread 6 (Thread 0x7fbae29e8700 (LWP 11517)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fbafacb7c0d in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7fbafb678280) at wtf/FastMalloc.cpp:2499
#2  0x00007fbafacb7d19 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1622
#3  0x00007fbaf64ccb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#4  0x00007fbafb9ca9dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fbae20e7700 (LWP 11518)):
#0  0x00007fbafb9bfd93 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=687) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fbaf5fff4d4 in g_main_context_poll (n_fds=1, fds=0x8bb6f0, timeout=687, context=0x8d3030, priority=<optimized out>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3440
#2  g_main_context_iterate (context=context@entry=0x8d3030, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3141
#3  0x00007fbaf5fff5f4 in g_main_context_iteration (context=0x8d3030, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#4  0x00007fbafc130736 in QEventDispatcherGlib::processEvents (this=0x8d2d40, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fbafc0fff92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fbafc1001e7 in QEventLoop::exec (this=0x7fbae20e6e20, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fbafbfff307 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fbafc00232b in QThreadPrivate::start (arg=0x8d2460) at thread/qthread_unix.cpp:298
#9  0x00007fbaf64ccb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#10 0x00007fbafb9ca9dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fba9251b700 (LWP 10698)):
#0  0x00007fbaf603b569 in g_private_get (key=key@entry=0x7fbaf62aab20) at /tmp/buildd/glib2.0-2.32.3/./glib/gthread-posix.c:1003
#1  0x00007fbaf60222b0 in g_thread_self () at /tmp/buildd/glib2.0-2.32.3/./glib/gthread.c:996
#2  0x00007fbaf5fff5e5 in g_main_context_iteration (context=0x645a880, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#3  0x00007fbafc130736 in QEventDispatcherGlib::processEvents (this=0x645a020, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fbafc0fff92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fbafc1001e7 in QEventLoop::exec (this=0x7fba9251adf0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fbafbfff307 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fbafc0dfd0f in QInotifyFileSystemWatcherEngine::run (this=0x6447950) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fbafc00232b in QThreadPrivate::start (arg=0x6447950) at thread/qthread_unix.cpp:298
#9  0x00007fbaf64ccb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#10 0x00007fbafb9ca9dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fba8b3f1700 (LWP 10731)):
#0  0x00007fbaf603b1e1 in g_mutex_unlock (mutex=mutex@entry=0x655aa30) at /tmp/buildd/glib2.0-2.32.3/./glib/gthread-posix.c:227
#1  0x00007fbaf5ffeccd in g_main_context_prepare (context=context@entry=0x655aa30, priority=priority@entry=0x7fba8b3f0cd8) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2872
#2  0x00007fbaf5fff3fb in g_main_context_iterate (context=context@entry=0x655aa30, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3126
#3  0x00007fbaf5fff5f4 in g_main_context_iteration (context=0x655aa30, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#4  0x00007fbafc130736 in QEventDispatcherGlib::processEvents (this=0xebafa0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fbafc0fff92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fbafc1001e7 in QEventLoop::exec (this=0x7fba8b3f0df0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fbafbfff307 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fbafc0dfd0f in QInotifyFileSystemWatcherEngine::run (this=0x6619b40) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007fbafc00232b in QThreadPrivate::start (arg=0x6619b40) at thread/qthread_unix.cpp:298
#10 0x00007fbaf64ccb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#11 0x00007fbafb9ca9dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fba881f9700 (LWP 10992)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fba88877a5d in ?? () from /usr/lib/libvlccore.so.5
#2  0x00007fbaf64ccb50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#3  0x00007fbafb9ca9dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fbafe4a5760 (LWP 11516)):
[KCrash Handler]
#6  KCalCore::Alarm::enabled (this=0x100000001) at ../../kcalcore/alarm.cpp:733
#7  0x00007fba96f922a2 in IncidenceEditorNG::IncidenceAlarm::updateButtons (this=0x8c8fa10) at ../../incidenceeditor-ng/incidencealarm.cpp:288
#8  0x00007fbafc115591 in QMetaObject::activate (sender=0x7435480, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#9  0x00007fbafc115591 in QMetaObject::activate (sender=0x790d5d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffea598710) at kernel/qobject.cpp:3547
#10 0x00007fbafd084137 in QItemSelectionModel::selectionChanged (this=<optimized out>, _t1=..., _t2=...) at .moc/release-shared/moc_qitemselectionmodel.cpp:166
#11 0x00007fbafd089f94 in QItemSelectionModel::emitSelectionChanged (this=0x790d5d0, newSelection=..., oldSelection=...) at itemviews/qitemselectionmodel.cpp:1544
#12 0x00007fbafd08af21 in QItemSelectionModel::select (this=0x790d5d0, selection=..., command=...) at itemviews/qitemselectionmodel.cpp:1110
#13 0x00007fbafd0568d5 in QListView::setSelection (this=<optimized out>, rect=..., command=...) at itemviews/qlistview.cpp:1379
#14 0x00007fbafd03594b in QAbstractItemView::mouseMoveEvent (this=0x7435480, event=0x7fffea599920) at itemviews/qabstractitemview.cpp:1767
#15 0x00007fbafd04c901 in QListView::mouseMoveEvent (this=0x7435480, e=0x7fffea599920) at itemviews/qlistview.cpp:781
#16 0x00007fbafcb5b998 in QWidget::event (this=0x7435480, event=0x7fffea599920) at kernel/qwidget.cpp:8347
#17 0x00007fbafcf17fc6 in QFrame::event (this=0x7435480, e=0x7fffea599920) at widgets/qframe.cpp:557
#18 0x00007fbafd02c11b in QAbstractItemView::viewportEvent (this=0x7435480, event=0x7fffea599920) at itemviews/qabstractitemview.cpp:1644
#19 0x00007fbafc101338 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<optimized out>, receiver=0x74354b0, event=0x7fffea599920) at kernel/qcoreapplication.cpp:986
#20 0x00007fbafcb0b1cf in notify_helper (e=0x7fffea599920, receiver=0x74354b0, this=0x8ce680) at kernel/qapplication.cpp:4555
#21 QApplicationPrivate::notify_helper (this=0x8ce680, receiver=0x74354b0, e=0x7fffea599920) at kernel/qapplication.cpp:4531
#22 0x00007fbafcb10953 in QApplication::notify (this=<optimized out>, receiver=0x74354b0, e=0x7fffea599920) at kernel/qapplication.cpp:4102
#23 0x00007fbafd85fba6 in KApplication::notify (this=0x7fffea59a5f0, receiver=0x74354b0, event=0x7fffea599920) at ../../kdeui/kernel/kapplication.cpp:311
#24 0x00007fbafc1011ac in QCoreApplication::notifyInternal (this=0x7fffea59a5f0, receiver=0x74354b0, event=0x7fffea599920) at kernel/qcoreapplication.cpp:876
#25 0x00007fbafcb0c1d2 in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#26 QApplicationPrivate::sendMouseEvent (receiver=0x74354b0, event=0x7fffea599920, alienWidget=0x74354b0, nativeWidget=0x4b851f0, buttonDown=0x74354b0, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3170
#27 0x00007fbafcb88635 in QETWidget::translateMouseEvent (this=0x4b851f0, event=<optimized out>) at kernel/qapplication_x11.cpp:4523
#28 0x00007fbafcb874fa in QApplication::x11ProcessEvent (this=0x7fffea59a5f0, event=0x7fffea59a1e0) at kernel/qapplication_x11.cpp:3646
#29 0x00007fbafcbafe62 in x11EventSourceDispatch (s=s@entry=0x8d0070, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#30 0x00007fbaf5fff205 in g_main_dispatch (context=0x8ccad0) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:2539
#31 g_main_context_dispatch (context=context@entry=0x8ccad0) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3075
#32 0x00007fbaf5fff538 in g_main_context_iterate (context=context@entry=0x8ccad0, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3146
#33 0x00007fbaf5fff5f4 in g_main_context_iteration (context=0x8ccad0, may_block=1) at /tmp/buildd/glib2.0-2.32.3/./glib/gmain.c:3207
#34 0x00007fbafc1306cf in QEventDispatcherGlib::processEvents (this=0x897c10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#35 0x00007fbafcbafaee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007fbafc0fff92 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007fbafc1001e7 in QEventLoop::exec (this=0x7fffea59a580, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007fbafc105277 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#39 0x0000000000403959 in main (argc=1, argv=0x7fffea59ac18) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi