Application: kontact (4.9.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-21-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
- What I was doing when the application crashed:
I started Kontact after logging in to my Kubuntu account.

This happens quite often the first time after log in.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
[Current thread is 1 (Thread 0x7fc4bb0157c0 (LWP 4881))]

Thread 5 (Thread 0x7fc4b344b700 (LWP 4882)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4cc58cb2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fc4cc58cc39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fc4c7ad6e9a in start_thread (arg=0x7fc4b344b700) at pthread_create.c:308
#4  0x00007fc4cd2b7cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fc4b2b4a700 (LWP 4883)):
#0  0x00007fc4cd2ac303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc4c7607d84 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4c7607ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4cda2cc16 in QEventDispatcherGlib::processEvents (this=0x7fc4ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc4cd9fd2bf in QEventLoop::processEvents (this=this@entry=0x7fc4b2b49dc0, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc4cd9fd548 in QEventLoop::exec (this=0x7fc4b2b49dc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc4cd8feb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc4cd901aec in QThreadPrivate::start (arg=0xa4ebd0) at thread/qthread_unix.cpp:338
#8  0x00007fc4c7ad6e9a in start_thread (arg=0x7fc4b2b4a700) at pthread_create.c:308
#9  0x00007fc4cd2b7cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc464b35700 (LWP 4906)):
#0  0x00007fc4c7ad8f69 in __pthread_mutex_lock (mutex=0x7fc458000a60) at pthread_mutex_lock.c:92
#1  0x00007fc4c7644e21 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc4c76076eb in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc4c7607cf9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc4c7607ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc4cda2cc16 in QEventDispatcherGlib::processEvents (this=0x7fc4580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc4cd9fd2bf in QEventLoop::processEvents (this=this@entry=0x7fc464b34d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc4cd9fd548 in QEventLoop::exec (this=0x7fc464b34d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc4cd8feb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fc4cd9dd9af in QInotifyFileSystemWatcherEngine::run (this=0x1082040) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007fc4cd901aec in QThreadPrivate::start (arg=0x1082040) at thread/qthread_unix.cpp:338
#11 0x00007fc4c7ad6e9a in start_thread (arg=0x7fc464b35700) at pthread_create.c:308
#12 0x00007fc4cd2b7cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc45e52b700 (LWP 5006)):
[KCrash Handler]
#6  QUrl::QUrl (this=0x7fc45e52a720, other=...) at io/qurl.cpp:4260
#7  0x00007fc4c37ec055 in Soprano::Vocabulary::Xesam::Content() () from /usr/lib/libsoprano.so.4
#8  0x00007fc4c5ba6608 in Nepomuk::ResourceData::loadType (this=this@entry=0x7fc44c020490, storedType=...) at ../../nepomuk/core/resourcedata.cpp:373
#9  0x00007fc4c5ba95e5 in Nepomuk::ResourceData::load (this=this@entry=0x7fc44c020490) at ../../nepomuk/core/resourcedata.cpp:439
#10 0x00007fc4c5ba9ee1 in Nepomuk::ResourceData::property (this=0x7fc44c020490, uri=...) at ../../nepomuk/core/resourcedata.cpp:272
#11 0x00007fc4c5bbc233 in Nepomuk::Resource::property (this=0x7fc45e52ad50, uri=...) at ../../nepomuk/core/resource.cpp:303
#12 0x00007fc469bbad2a in MessageCore::NepomukResourceRetrieverRunnable::run (this=0x1ad2a90) at ../../messagecore/asyncnepomukresourceretriever.cpp:48
#13 0x00007fc4cd8f545d in QThreadPoolThread::run (this=0x126d7d0) at concurrent/qthreadpool.cpp:107
#14 0x00007fc4cd901aec in QThreadPrivate::start (arg=0x126d7d0) at thread/qthread_unix.cpp:338
#15 0x00007fc4c7ad6e9a in start_thread (arg=0x7fc45e52b700) at pthread_create.c:308
#16 0x00007fc4cd2b7cbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc4bb0157c0 (LWP 4881)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc4cd90204b in wait (time=18446744073709551615, this=0x1ad2a20) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1ad4898, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fc4cd8f4c2f in QThreadPoolPrivate::waitForDone (this=0x1ad4810, msecs=msecs@entry=-1) at concurrent/qthreadpool.cpp:298
#4  0x00007fc4cd8f66dd in QThreadPool::~QThreadPool (this=0x1ad4628, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:440
#5  0x00007fc469bb9871 in ~AsyncNepomukResourceRetrieverPrivate (this=0x1ad4620, __in_chrg=<optimized out>) at ../../messagecore/asyncnepomukresourceretriever.cpp:59
#6  MessageCore::AsyncNepomukResourceRetriever::~AsyncNepomukResourceRetriever (this=0x1aaf140, __in_chrg=<optimized out>) at ../../messagecore/asyncnepomukresourceretriever.cpp:124
#7  0x00007fc469615942 in ~CallbackNepomukResourceRetriever (this=0x1aaf140, __in_chrg=<optimized out>) at ../../messagelist/core/callbacknepomukresourceretriever.h:32
#8  MessageList::CallbackNepomukResourceRetriever::~CallbackNepomukResourceRetriever (this=0x1aaf140, __in_chrg=<optimized out>) at ../../messagelist/core/callbacknepomukresourceretriever.h:32
#9  0x00007fc4cd1ff901 in __run_exit_handlers (status=1, listp=0x7fc4cd57c6a8 <__exit_funcs>, run_list_atexit=true) at exit.c:78
#10 0x00007fc4cd1ff985 in __GI_exit (status=<optimized out>) at exit.c:100
#11 0x00007fc469ead393 in MailCommon::Kernel::emergencyExit (this=this@entry=0xf07690, reason=...) at ../../mailcommon/mailkernel.cpp:217
#12 0x00007fc469ead755 in MailCommon::Kernel::createDefaultCollectionDone (this=0xf07690, job=0x1699f40) at ../../mailcommon/mailkernel.cpp:173
#13 0x00007fc4cda13f5f in QMetaObject::activate (sender=0x1699f40, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb723ec50) at kernel/qobject.cpp:3547
#14 0x00007fc4cde7aef2 in KJob::result (this=this@entry=0x1699f40, _t1=_t1@entry=0x1699f40) at ./kjob.moc:208
#15 0x00007fc4cde7af30 in KJob::emitResult (this=0x1699f40) at ../../kdecore/jobs/kjob.cpp:318
#16 0x00007fc4ca12625b in Akonadi::SpecialCollectionsRequestJobPrivate::lockResult (this=0x16909c0, job=0x1687bc0) at ../../akonadi/specialcollectionsrequestjob.cpp:121
#17 0x00007fc4cda13f5f in QMetaObject::activate (sender=0x1687bc0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffb723ee20) at kernel/qobject.cpp:3547
#18 0x00007fc4cde7aef2 in KJob::result (this=this@entry=0x1687bc0, _t1=_t1@entry=0x1687bc0) at ./kjob.moc:208
#19 0x00007fc4cde7af30 in KJob::emitResult (this=0x1687bc0) at ../../kdecore/jobs/kjob.cpp:318
#20 0x00007fc4ca11faa9 in Akonadi::GetLockJob::Private::timeout (this=0x10e81b0) at ../../akonadi/specialcollectionshelperjobs.cpp:610
#21 0x00007fc4cda13f5f in QMetaObject::activate (sender=0x16ae880, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#22 0x00007fc4cda1326c in QObject::event (this=0x16ae880, e=<optimized out>) at kernel/qobject.cpp:1157
#23 0x00007fc4ce3dfe9c in QApplicationPrivate::notify_helper (this=this@entry=0x911760, receiver=receiver@entry=0x16ae880, e=e@entry=0x7fffb723f630) at kernel/qapplication.cpp:4562
#24 0x00007fc4ce3e430a in QApplication::notify (this=0x7fffb723fa40, receiver=0x16ae880, e=0x7fffb723f630) at kernel/qapplication.cpp:4423
#25 0x00007fc4cf0e81d6 in KApplication::notify (this=0x7fffb723fa40, receiver=0x16ae880, event=0x7fffb723f630) at ../../kdeui/kernel/kapplication.cpp:311
#26 0x00007fc4cd9fe56e in QCoreApplication::notifyInternal (this=0x7fffb723fa40, receiver=0x16ae880, event=0x7fffb723f630) at kernel/qcoreapplication.cpp:915
#27 0x00007fc4cda2f462 in sendEvent (event=0x7fffb723f630, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#28 QTimerInfoList::activateTimers (this=0x90cd60) at kernel/qeventdispatcher_unix.cpp:611
#29 0x00007fc4cda2c584 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#30 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#31 0x00007fc4cda2c5a1 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#32 0x00007fc4c7607ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fc4c7607de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fc4c7607ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fc4cda2cbf6 in QEventDispatcherGlib::processEvents (this=0x8d2c10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#36 0x00007fc4ce484c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#37 0x00007fc4cd9fd2bf in QEventLoop::processEvents (this=this@entry=0x7fffb723f8b0, flags=...) at kernel/qeventloop.cpp:149
#38 0x00007fc4cd9fd548 in QEventLoop::exec (this=0x7fffb723f8b0, flags=...) at kernel/qeventloop.cpp:204
#39 0x00007fc4cda02708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#40 0x0000000000403339 in main (argc=1, argv=0x7fffb723fb88) at ../../../kontact/src/main.cpp:219

Reported using DrKonqi