Application: kontact (4.7.4)
KDE Platform Version: 4.7.4 (4.7.4)
Qt Version: 4.7.4
Operating System: Linux 3.1.0-1.2-desktop x86_64
Distribution: "openSUSE 12.1 (x86_64)"

-- Information about the crash:
Am receiving "unable to fetch backend" error.  Closed Kmail and received this crash.  The unable to fetch backend was not appearing yesterday (1-17-12).  No updates applied since shutting down last night.

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fb9224e5760 (LWP 5652))]

Thread 3 (Thread 0x7fb90a25b700 (LWP 5654)):
#0  0x00007fb91a423e6c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fb91ed709dc in ?? () from /usr/lib64/libQtWebKit.so.4
#2  0x00007fb91ed70b09 in ?? () from /usr/lib64/libQtWebKit.so.4
#3  0x00007fb91a41ff05 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fb91fa7863d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fb909952700 (LWP 5655)):
#0  0x00007fb91a422014 in pthread_mutex_lock () from /lib64/libpthread.so.0
#1  0x00007fb9190a8179 in g_main_context_acquire () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fb9190a98b1 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fb9190a9f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fb920e64586 in QEventDispatcherGlib::processEvents (this=0x7fb9040008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007fb920e38a32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb920e38c2f in QEventLoop::exec (this=0x7fb909951e20, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007fb920d505df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#8  0x00007fb920d53025 in QThreadPrivate::start (arg=0x64d2c0) at thread/qthread_unix.cpp:331
#9  0x00007fb91a41ff05 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fb91fa7863d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fb9224e5760 (LWP 5652)):
[KCrash Handler]
#6  QAbstractItemView::selectionModel (this=0x1013d90) at itemviews/qabstractitemview.cpp:760
#7  0x00007fb8c12ef9c8 in MailCommon::FolderTreeWidget::selectedCollections() const () from /usr/lib64/libmailcommon.so.4
#8  0x00007fb8c16a6dde in KMMainWidget::updateFolderMenu() () from /usr/lib64/libkmailprivate.so.4
#9  0x00007fb8c16b64d3 in KMMainWidget::slotEndCheckFetchCollectionsDone(KJob*) () from /usr/lib64/libkmailprivate.so.4
#10 0x00007fb8c16b6e18 in KMMainWidget::slotEndCheckMail() () from /usr/lib64/libkmailprivate.so.4
#11 0x00007fb8c16ba471 in KMMainWidget::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkmailprivate.so.4
#12 0x00007fb920e4c5aa in QMetaObject::activate (sender=0xcdf830, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3287
#13 0x00007fb8c1667e6c in KMKernel::slotProgressItemCompletedOrCanceled(KPIM::ProgressItem*) () from /usr/lib64/libkmailprivate.so.4
#14 0x00007fb8c167272a in KMKernel::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkmailprivate.so.4
#15 0x00007fb920e4c5aa in QMetaObject::activate (sender=0x97e3e0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffffdf25f0) at kernel/qobject.cpp:3287
#16 0x00007fb91d333432 in KPIM::ProgressManager::progressItemCompleted(KPIM::ProgressItem*) () from /usr/lib64/libkdepim.so.4
#17 0x00007fb91d333f63 in KPIM::ProgressManager::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdepim.so.4
#18 0x00007fb920e4c5aa in QMetaObject::activate (sender=0x40cc080, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffffdf2700) at kernel/qobject.cpp:3287
#19 0x00007fb91d333002 in KPIM::ProgressItem::progressItemCompleted(KPIM::ProgressItem*) () from /usr/lib64/libkdepim.so.4
#20 0x00007fb91d334cce in ?? () from /usr/lib64/libkdepim.so.4
#21 0x00007fb91d334ec2 in ?? () from /usr/lib64/libkdepim.so.4
#22 0x00007fb920e4c5aa in QMetaObject::activate (sender=0xc96ab0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffffdf2830) at kernel/qobject.cpp:3287
#23 0x00007fb91c82b955 in Akonadi::AgentManager::instanceStatusChanged (this=<optimized out>, _t1=<optimized out>) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/agentmanager.moc:177
#24 0x00007fb91c889ffc in Akonadi::AgentManagerPrivate::agentInstanceStatusChanged (this=0xee4fb0, identifier=<optimized out>, status=0, msg=...) at /usr/src/debug/kdepimlibs-4.7.4/akonadi/agentmanager.cpp:129
#25 0x00007fb91c88bd1e in Akonadi::AgentManager::qt_metacall (this=0xc96ab0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fffffdf29a0) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/agentmanager.moc:131
#26 0x00007fb920e4c5aa in QMetaObject::activate (sender=0xca3130, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffffdf29a0) at kernel/qobject.cpp:3287
#27 0x00007fb91c9119eb in OrgFreedesktopAkonadiAgentManagerInterface::agentInstanceStatusChanged (this=<optimized out>, _t1=<optimized out>, _t2=0, _t3=<optimized out>) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/agentmanagerinterface.moc:285
#28 0x00007fb91c911ea9 in OrgFreedesktopAkonadiAgentManagerInterface::qt_metacall (this=0xca3130, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0x7fffffdf3260) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/agentmanagerinterface.moc:167
#29 0x00007fb91cbab9fb in QDBusConnectionPrivate::deliverCall (this=0x62cd20, object=0xca3130, msg=..., metaTypes=..., slotIdx=12) at qdbusintegrator.cpp:942
#30 0x00007fb91cbb4d5f in QDBusCallDeliveryEvent::placeMetaCall (this=<optimized out>, object=<optimized out>) at qdbusintegrator_p.h:103
#31 0x00007fb920e5015a in QObject::event (this=0xca3130, e=<optimized out>) at kernel/qobject.cpp:1226
#32 0x00007fb920208c34 in notify_helper (e=0x3f5bc20, receiver=0xca3130, this=0x642650) at kernel/qapplication.cpp:4481
#33 QApplicationPrivate::notify_helper (this=0x642650, receiver=0xca3130, e=0x3f5bc20) at kernel/qapplication.cpp:4453
#34 0x00007fb92020dac1 in QApplication::notify (this=0x7fffffdf5660, receiver=0xca3130, e=0x3f5bc20) at kernel/qapplication.cpp:4360
#35 0x00007fb92188b186 in KApplication::notify (this=0x7fffffdf5660, receiver=0xca3130, event=0x3f5bc20) at /usr/src/debug/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#36 0x00007fb920e3982c in QCoreApplication::notifyInternal (this=0x7fffffdf5660, receiver=0xca3130, event=0x3f5bc20) at kernel/qcoreapplication.cpp:787
#37 0x00007fb920e3cc08 in sendEvent (event=0x3f5bc20, receiver=0xca3130) at kernel/qcoreapplication.h:215
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x60cd40) at kernel/qcoreapplication.cpp:1428
#39 0x00007fb920e640c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#40 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#41 0x00007fb9190a958d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#42 0x00007fb9190a9d88 in ?? () from /usr/lib64/libglib-2.0.so.0
#43 0x00007fb9190a9f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#44 0x00007fb920e6451f in QEventDispatcherGlib::processEvents (this=0x60c970, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#45 0x00007fb9202abf9e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#46 0x00007fb920e38a32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#47 0x00007fb920e38c2f in QEventLoop::exec (this=0x7fffffdf3c20, flags=...) at kernel/qeventloop.cpp:201
#48 0x00007fb9212a7486 in KJob::exec() () from /usr/lib64/libkdecore.so.5
#49 0x00007fb8c12e72d4 in MailCommon::FolderCollectionMonitor::slotExpungeJobSync(KJob*) () from /usr/lib64/libmailcommon.so.4
#50 0x00007fb8c12b323c in MailCommon::FolderCollectionMonitor::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libmailcommon.so.4
#51 0x00007fb920e4c5aa in QMetaObject::activate (sender=0x1313ba0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffffdf3d80) at kernel/qobject.cpp:3287
#52 0x00007fb9212a7662 in KJob::result(KJob*) () from /usr/lib64/libkdecore.so.5
#53 0x00007fb9212a76a0 in KJob::emitResult() () from /usr/lib64/libkdecore.so.5
#54 0x00007fb91c88512d in Akonadi::Job::qt_metacall (this=0x1313ba0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x1e7c6a0) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/job.moc:91
#55 0x00007fb91c8b5ef5 in Akonadi::ItemFetchJob::qt_metacall (this=0x1313ba0, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x1e7c6a0) at /usr/src/debug/kdepimlibs-4.7.4/build/akonadi/itemfetchjob.moc:73
#56 0x00007fb920e5015a in QObject::event (this=0x1313ba0, e=<optimized out>) at kernel/qobject.cpp:1226
#57 0x00007fb920208c34 in notify_helper (e=0x3c91fc0, receiver=0x1313ba0, this=0x642650) at kernel/qapplication.cpp:4481
#58 QApplicationPrivate::notify_helper (this=0x642650, receiver=0x1313ba0, e=0x3c91fc0) at kernel/qapplication.cpp:4453
#59 0x00007fb92020dac1 in QApplication::notify (this=0x7fffffdf5660, receiver=0x1313ba0, e=0x3c91fc0) at kernel/qapplication.cpp:4360
#60 0x00007fb92188b186 in KApplication::notify (this=0x7fffffdf5660, receiver=0x1313ba0, event=0x3c91fc0) at /usr/src/debug/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#61 0x00007fb920e3982c in QCoreApplication::notifyInternal (this=0x7fffffdf5660, receiver=0x1313ba0, event=0x3c91fc0) at kernel/qcoreapplication.cpp:787
#62 0x00007fb920e3cc08 in sendEvent (event=0x3c91fc0, receiver=0x1313ba0) at kernel/qcoreapplication.h:215
#63 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x60cd40) at kernel/qcoreapplication.cpp:1428
#64 0x00007fb920e640c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#65 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#66 0x00007fb9190a958d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#67 0x00007fb9190a9d88 in ?? () from /usr/lib64/libglib-2.0.so.0
#68 0x00007fb9190a9f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#69 0x00007fb920e6451f in QEventDispatcherGlib::processEvents (this=0x60c970, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#70 0x00007fb9202abf9e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#71 0x00007fb920e38a32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#72 0x00007fb920e38c2f in QEventLoop::exec (this=0x7fffffdf4720, flags=...) at kernel/qeventloop.cpp:201
#73 0x00007fb9212a7486 in KJob::exec() () from /usr/lib64/libkdecore.so.5
#74 0x00007fb8c12e70d4 in MailCommon::FolderCollectionMonitor::expunge(Akonadi::Collection const&, bool) () from /usr/lib64/libmailcommon.so.4
#75 0x00007fb8c16700f3 in KMKernel::cleanup() () from /usr/lib64/libkmailprivate.so.4
#76 0x00007fb8c19acca2 in ?? () from /usr/lib64/kde4/kmailpart.so
#77 0x00007fb8c19acda9 in ?? () from /usr/lib64/kde4/kmailpart.so
#78 0x00007fb921cd059e in KontactInterface::Plugin::~Plugin (this=0x852290, __vtt_parm=<optimized out>, __in_chrg=<optimized out>) at /usr/src/debug/kdepimlibs-4.7.4/kontactinterface/plugin.cpp:90
#79 0x00007fb8c29434bf in ?? () from /usr/lib64/kde4/kontact_kmailplugin.so
#80 0x00007fb8c29434e9 in ?? () from /usr/lib64/kde4/kontact_kmailplugin.so
#81 0x00007fb922105fe7 in Kontact::MainWindow::~MainWindow() () from /usr/lib64/libkontactprivate.so.4
#82 0x00007fb922106149 in Kontact::MainWindow::~MainWindow() () from /usr/lib64/libkontactprivate.so.4
#83 0x00007fb920e50188 in QObject::event (this=0x76d940, e=<optimized out>) at kernel/qobject.cpp:1209
#84 0x00007fb920258d4b in QWidget::event (this=0x76d940, event=0x2400bd0) at kernel/qwidget.cpp:8754
#85 0x00007fb92061704b in QMainWindow::event (this=0x76d940, event=0x2400bd0) at widgets/qmainwindow.cpp:1478
#86 0x00007fb921987d48 in KXmlGuiWindow::event (this=0x76d940, ev=0x2400bd0) at /usr/src/debug/kdelibs-4.7.4/kdeui/xmlgui/kxmlguiwindow.cpp:126
#87 0x00007fb920208c34 in notify_helper (e=0x2400bd0, receiver=0x76d940, this=0x642650) at kernel/qapplication.cpp:4481
#88 QApplicationPrivate::notify_helper (this=0x642650, receiver=0x76d940, e=0x2400bd0) at kernel/qapplication.cpp:4453
#89 0x00007fb92020dac1 in QApplication::notify (this=0x7fffffdf5660, receiver=0x76d940, e=0x2400bd0) at kernel/qapplication.cpp:4360
#90 0x00007fb92188b186 in KApplication::notify (this=0x7fffffdf5660, receiver=0x76d940, event=0x2400bd0) at /usr/src/debug/kdelibs-4.7.4/kdeui/kernel/kapplication.cpp:311
#91 0x00007fb920e3982c in QCoreApplication::notifyInternal (this=0x7fffffdf5660, receiver=0x76d940, event=0x2400bd0) at kernel/qcoreapplication.cpp:787
#92 0x00007fb920e3cc08 in sendEvent (event=0x2400bd0, receiver=0x76d940) at kernel/qcoreapplication.h:215
#93 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x60cd40) at kernel/qcoreapplication.cpp:1428
#94 0x00007fb920e640c3 in sendPostedEvents () at kernel/qcoreapplication.h:220
#95 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#96 0x00007fb9190a958d in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#97 0x00007fb9190a9d88 in ?? () from /usr/lib64/libglib-2.0.so.0
#98 0x00007fb9190a9f59 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#99 0x00007fb920e6451f in QEventDispatcherGlib::processEvents (this=0x60c970, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#100 0x00007fb9202abf9e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#101 0x00007fb920e38a32 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#102 0x00007fb920e38c2f in QEventLoop::exec (this=0x7fffffdf55f0, flags=...) at kernel/qeventloop.cpp:201
#103 0x00007fb920e3cdf7 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#104 0x0000000000403919 in ?? ()
#105 0x00007fb91f9c023d in __libc_start_main () from /lib64/libc.so.6
#106 0x0000000000403e61 in _start ()

Possible duplicates by query: bug 291596, bug 291533, bug 288141, bug 287964, bug 286743.

Reported using DrKonqi