Bug 313235

Application: kontact (4.10 rc2)
KDE Platform Version: 4.9.97 (Compiled from sources)
Qt Version: 4.8.2
Operating System: Linux 3.7.1 x86_64
Distribution: Debian GNU/Linux 7.0 (wheezy)

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

Most of the times, when I run from a console:
akonadictl restart

Kontact (and plasma-desktop) crash with the attached backtrace.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f02c943d780 (LWP 21905))]

Thread 5 (Thread 0x7f02c20fd700 (LWP 22064)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f02debfbebd in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f02debfbfc9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f02dab8db50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#4  0x00007f02d8c99a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f02c17fc700 (LWP 22070)):
#0  0x00007f02dab9162e in __pthread_mutex_unlock_usercnt (mutex=0x7f02bc0008b0, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  0x00007f02d74a5451 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f02d7468e1d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f02d746954b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f02d7469744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f02daf4e296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f02daf1e8af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f02daf1eb38 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f02dae21d70 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f02dae24d0b in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f02dab8db50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#11 0x00007f02d8c99a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f026894a700 (LWP 18575)):
#0  0x00007f02d8c8ee33 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f02d7469624 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f02d7469744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f02daf4e296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f02daf1e8af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f02daf1eb38 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f02dae21d70 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f02daeff1bf in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f02dae24d0b in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f02dab8db50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#10 0x00007f02d8c99a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f026cd99700 (LWP 18581)):
#0  0x00007f02dab9518d in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f02d74a477f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f02d74691a9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f02d74695c2 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f02d7469744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f02daf4e296 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f02daf1e8af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f02daf1eb38 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f02dae21d70 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f02daeff1bf in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f02dae24d0b in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f02dab8db50 in start_thread (arg=<optimized out>) at pthread_create.c:304
#12 0x00007f02d8c99a7d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f02c943d780 (LWP 21905)):
[KCrash Handler]
#6  0x00007f02d8bf1475 in *__GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f02d8bf46f0 in *__GI_abort () at abort.c:92
#8  0x00007f02dae1a722 in qt_message_output(QtMsgType, char const*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f02dae1aa98 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#10 0x00007f02dae1ac24 in qFatal(char const*, ...) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#11 0x00007f027ae4e95e in CalendarSupport::Calendar::Private::updateItem (this=0x6e515c0, item=..., mode=CalendarSupport::Calendar::Private::AssertExists) at /media/kdesvn/kde4svn/src/kdepim/calendarsupport/calendar.cpp:442
#12 0x00007f027ae4cd11 in CalendarSupport::Calendar::Private::dataChanged (this=0x6e515c0, topLeft=..., bottomRight=...) at /media/kdesvn/kde4svn/src/kdepim/calendarsupport/calendar.cpp:236
#13 0x00007f027ae4246a in CalendarSupport::Calendar::Private::qt_static_metacall (_o=0x6e515c0, _c=QMetaObject::InvokeMetaMethod, _id=11, _a=0x7fffcddd64c0) at /media/kdesvn/kde4svn/build/kdepim/calendarsupport/moc_calendar_p.cpp:147
#14 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#15 0x00007f02daf7f067 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x00007f02da3bd53a in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#17 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f02daf7f067 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#19 0x00007f02dba55666 in KSelectionProxyModelPrivate::emitContinuousRanges (this=0x6e50360, sourceFirst=..., sourceLast=..., proxyFirst=..., proxyLast=...) at /media/kdesvn/kde4svn/src/kdelibs/kdeui/itemviews/kselectionproxymodel.cpp:624
#20 0x00007f02dba55901 in KSelectionProxyModelPrivate::sourceDataChanged (this=0x6e50360, topLeft=..., bottomRight=...) at /media/kdesvn/kde4svn/src/kdelibs/kdeui/itemviews/kselectionproxymodel.cpp:667
#21 0x00007f02dba5fc76 in KSelectionProxyModel::qt_static_metacall (_o=0x6e49c80, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7fffcddd6bf0) at /media/kdesvn/kde4svn/build/kdelibs/kdeui/moc_kselectionproxymodel.cpp:110
#22 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f02daf7f067 in QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007f02d571875b in Akonadi::EntityTreeModelPrivate::dataChanged (this=0x6e05cc0, top=..., bottom=...) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/entitytreemodel_p.cpp:1692
#25 0x00007f02d57158ca in Akonadi::EntityTreeModelPrivate::monitoredItemChanged (this=0x6e05cc0, item=...) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/entitytreemodel_p.cpp:1130
#26 0x00007f02d570c2fb in Akonadi::EntityTreeModel::qt_static_metacall (_o=0x6e054f0, _c=QMetaObject::InvokeMetaMethod, _id=31, _a=0x7fffcddd6f70) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_entitytreemodel.cpp:160
#27 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#28 0x00007f02d57581d7 in Akonadi::Monitor::itemChanged (this=0x6e03fd0, _t1=..., _t2=...) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_monitor.cpp:189
#29 0x00007f02d575c41c in Akonadi::MonitorPrivate::emitItemNotification (this=0x6e04670, msg=..., item=..., collection=..., collectionDest=...) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/monitor_p.cpp:554
#30 0x00007f02d575ac0b in Akonadi::MonitorPrivate::emitNotification (this=0x6e04670, msg=...) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/monitor_p.cpp:296
#31 0x00007f02d56ba2f6 in Akonadi::ChangeRecorderPrivate::emitNotification (this=0x6e04670, msg=...) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/changerecorder_p.cpp:54
#32 0x00007f02d575b8b9 in Akonadi::MonitorPrivate::flushPipeline (this=0x6e04670) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/monitor_p.cpp:457
#33 0x00007f02d575b934 in Akonadi::MonitorPrivate::dataAvailable (this=0x6e04670) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/monitor_p.cpp:466
#34 0x00007f02d5758017 in Akonadi::Monitor::qt_static_metacall (_o=0x6e03fd0, _c=QMetaObject::InvokeMetaMethod, _id=23, _a=0x7fffcddd7500) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_monitor.cpp:137
#35 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#36 0x00007f02d56fe6c7 in Akonadi::EntityCacheBase::dataAvailable (this=0x6e03650) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_entitycache_p.cpp:102
#37 0x00007f02d56c098e in Akonadi::EntityCache<Akonadi::Item, Akonadi::ItemFetchJob, Akonadi::ItemFetchScope>::processResult (this=0x6e03650, job=0xec53640) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/entitycache_p.h:196
#38 0x00007f02d56fe5a0 in Akonadi::EntityCacheBase::qt_static_metacall (_o=0x6e03650, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fffcddd7780) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_entitycache_p.cpp:54
#39 0x00007f02daf3554f in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#40 0x00007f02db3e240b in KJob::result (this=0xec53640, _t1=0xec53640) at /media/kdesvn/kde4svn/build/kdelibs/kdecore/kjob.moc:208
#41 0x00007f02db3e18cf in KJob::emitResult (this=0xec53640) at /media/kdesvn/kde4svn/src/kdelibs/kdecore/jobs/kjob.cpp:318
#42 0x00007f02d5752e5a in Akonadi::JobPrivate::delayedEmitResult (this=0xebb3e30) at /media/kdesvn/kde4svn/src/kdepimlibs/akonadi/job.cpp:144
#43 0x00007f02d5753ff8 in Akonadi::Job::qt_static_metacall (_o=0xec53640, _c=QMetaObject::InvokeMetaMethod, _id=6, _a=0xc9a5840) at /media/kdesvn/kde4svn/build/kdepimlibs/akonadi/moc_job.cpp:68
#44 0x00007f02daf34a2e in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#45 0x00007f02d9e3070c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#46 0x00007f02d9e34b8a in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#47 0x00007f02dba73d2e in KApplication::notify (this=0x7fffcddd81f0, receiver=0xec53640, event=0x3562f80) at /media/kdesvn/kde4svn/src/kdelibs/kdeui/kernel/kapplication.cpp:311
#48 0x00007f02daf1fb5e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#49 0x00007f02daf239e1 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#50 0x00007f02daf4e0e3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#51 0x00007f02d7469355 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007f02d7469688 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#53 0x00007f02d7469744 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#54 0x00007f02daf4e276 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#55 0x00007f02d9ed183e in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#56 0x00007f02daf1e8af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#57 0x00007f02daf1eb38 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#58 0x00007f02daf23cf8 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#59 0x0000000000404328 in main (argc=3, argv=0x7fffcddd8748) at /media/kdesvn/kde4svn/src/kdepim/kontact/src/main.cpp:219

Reported using DrKonqi