Bug 346065

Application: kontact (4.14.6)
KDE Platform Version: 4.14.6
Qt Version: 4.8.6
Operating System: Linux 3.19.0-12-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

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

I was doing some unrelated task and kmail was in the background when it suddenly crashed.

-- 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 0x7fb166222800 (LWP 19292))]

Thread 5 (Thread 0x7fb14628c700 (LWP 19335)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb160ec581d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb160ec5859 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb15d5c36aa in start_thread (arg=0x7fb14628c700) at pthread_create.c:333
#4  0x00007fb163703eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb105981700 (LWP 19351)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb160c0620d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fb160ef4fd6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fb15d5c36aa in start_thread (arg=0x7fb105981700) at pthread_create.c:333
#4  0x00007fb163703eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb0f5ce3700 (LWP 19557)):
#0  0x00007fb15d1227a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb15d0dd3f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb15d0ddde8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb15d0ddfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb163e8c82e in QEventDispatcherGlib::processEvents (this=0x7fb0f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#5  0x00007fb163e5bcd1 in QEventLoop::processEvents (this=this@entry=0x7fb0f5ce2dd0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fb163e5c035 in QEventLoop::exec (this=this@entry=0x7fb0f5ce2dd0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fb163d4fe89 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#8  0x00007fb163d526ff in QThreadPrivate::start (arg=0x1277aa0) at thread/qthread_unix.cpp:349
#9  0x00007fb15d5c36aa in start_thread (arg=0x7fb0f5ce3700) at pthread_create.c:333
#10 0x00007fb163703eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb0ef987700 (LWP 19823)):
#0  0x00007fb1636f449d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fb15d1212f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb15d0dd96c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb15d0dde60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb15d0ddfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb163e8c82e in QEventDispatcherGlib::processEvents (this=0x7fb0e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#6  0x00007fb163e5bcd1 in QEventLoop::processEvents (this=this@entry=0x7fb0ef986d80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fb163e5c035 in QEventLoop::exec (this=this@entry=0x7fb0ef986d80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fb163d4fe89 in QThread::exec (this=this@entry=0x2d956c0) at thread/qthread.cpp:538
#9  0x00007fb163e3c443 in QInotifyFileSystemWatcherEngine::run (this=0x2d956c0) at io/qfilesystemwatcher_inotify.cpp:265
#10 0x00007fb163d526ff in QThreadPrivate::start (arg=0x2d956c0) at thread/qthread_unix.cpp:349
#11 0x00007fb15d5c36aa in start_thread (arg=0x7fb0ef987700) at pthread_create.c:333
#12 0x00007fb163703eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb166222800 (LWP 19292)):
[KCrash Handler]
#6  0x00007fb162670039 in Akonadi::FavoriteCollectionsModel::removeCollection (this=0x0, collection=...) at ../../akonadi/favoritecollectionsmodel.cpp:294
#7  0x00007fb0fb7ec4cc in KMMainWidget::slotCollectionRemoved (this=<optimized out>, col=...) at ../../kmail/kmmainwidget.cpp:4501
#8  0x00007fb0fb8ec92e in KMMainWidget::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at moc_kmmainwidget.cpp:488
#9  0x00007fb163e7219c in QMetaObject::activate (sender=0x11d4290, m=m@entry=0x7fb162a112c0 <Akonadi::Monitor::staticMetaObject>, local_signal_index=local_signal_index@entry=16, argv=argv@entry=0x7ffcf91eedb0) at kernel/qobject.cpp:3567
#10 0x00007fb1626a6a45 in Akonadi::Monitor::collectionRemoved (this=<optimized out>, _t1=...) at ./moc_monitor.cpp:343
#11 0x00007fb1626b1e0e in Akonadi::MonitorPrivate::emitCollectionNotification (this=this@entry=0x15c0a00, msg=..., col=..., par=..., dest=...) at ../../akonadi/monitor_p.cpp:958
#12 0x00007fb1626b2b04 in Akonadi::MonitorPrivate::emitNotification (this=0x15c0a00, msg=...) at ../../akonadi/monitor_p.cpp:504
#13 0x00007fb1626ae561 in Akonadi::MonitorPrivate::flushPipeline (this=this@entry=0x15c0a00) at ../../akonadi/monitor_p.cpp:718
#14 0x00007fb1626ae799 in Akonadi::MonitorPrivate::dataAvailable (this=0x15c0a00) at ../../akonadi/monitor_p.cpp:727
#15 0x00007fb163e7219c in QMetaObject::activate (sender=sender@entry=0x15c0ee0, m=m@entry=0x7fb162a0f180 <Akonadi::EntityCacheBase::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3567
#16 0x00007fb162648390 in Akonadi::EntityCacheBase::dataAvailable (this=this@entry=0x15c0ee0) at ./moc_entitycache_p.cpp:101
#17 0x00007fb162601442 in Akonadi::EntityCache<Akonadi::Collection, Akonadi::CollectionFetchJob, Akonadi::CollectionFetchScope>::processResult (this=0x15c0ee0, job=<optimized out>) at ../../akonadi/entitycache_p.h:217
#18 0x00007fb163e7219c in QMetaObject::activate (sender=sender@entry=0xe80d2f0, m=m@entry=0x7fb164693f20 <KJob::staticMetaObject>, local_signal_index=local_signal_index@entry=3, argv=argv@entry=0x7ffcf91ef330) at kernel/qobject.cpp:3567
#19 0x00007fb1642f3362 in KJob::result (this=this@entry=0xe80d2f0, _t1=_t1@entry=0xe80d2f0) at ./kjob.moc:207
#20 0x00007fb1642f33b0 in KJob::emitResult (this=0xe80d2f0) at ../../kdecore/jobs/kjob.cpp:318
#21 0x00007fb163e76891 in QObject::event (this=0xe80d2f0, e=<optimized out>) at kernel/qobject.cpp:1222
#22 0x00007fb1648699bc in QApplicationPrivate::notify_helper (this=this@entry=0x1066de0, receiver=receiver@entry=0xe80d2f0, e=e@entry=0xf7f7370) at kernel/qapplication.cpp:4570
#23 0x00007fb1648704d8 in QApplication::notify (this=this@entry=0x7ffcf91efa20, receiver=receiver@entry=0xe80d2f0, e=e@entry=0xf7f7370) at kernel/qapplication.cpp:4356
#24 0x00007fb1655cbb4a in KApplication::notify (this=0x7ffcf91efa20, receiver=0xe80d2f0, event=0xf7f7370) at ../../kdeui/kernel/kapplication.cpp:311
#25 0x00007fb163e5d17d in QCoreApplication::notifyInternal (this=0x7ffcf91efa20, receiver=receiver@entry=0xe80d2f0, event=event@entry=0xf7f7370) at kernel/qcoreapplication.cpp:955
#26 0x00007fb163e60a21 in sendEvent (event=0xf7f7370, receiver=0xe80d2f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#27 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1022860) at kernel/qcoreapplication.cpp:1579
#28 0x00007fb163e60eb3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1472
#29 0x00007fb163e8c69e in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#30 postEventSourceDispatch (s=0x10582a0) at kernel/qeventdispatcher_glib.cpp:300
#31 0x00007fb15d0ddc3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fb15d0ddf20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fb15d0ddfcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fb163e8c80e in QEventDispatcherGlib::processEvents (this=0x1049d90, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#35 0x00007fb164911c66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x00007fb163e5bcd1 in QEventLoop::processEvents (this=this@entry=0x7ffcf91ef930, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007fb163e5c035 in QEventLoop::exec (this=this@entry=0x7ffcf91ef930, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007fb163e61ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#39 0x00007fb164867c1c in QApplication::exec () at kernel/qapplication.cpp:3828
#40 0x0000000000403509 in main (argc=2, argv=0x7ffcf91efb78) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 345672.

Reported using DrKonqi