Application: kmail (4.8.3)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-25-generic x86_64
Distribution: Ubuntu 12.04 LTS

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

I have just upgraded Xubuntu from 11.10 to 12.04.  I have run all updates.  On trying to start KMail for the first time after the upgrade, it crashes.

-- Backtrace:
Application: KMail (kmail), 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 0x7ff7f23d87c0 (LWP 4735))]

Thread 4 (Thread 0x7ff7c8e4f700 (LWP 4757)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff7e45bbdec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007ff7e45bbf19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007ff7ed197e9a in start_thread (arg=0x7ff7c8e4f700) at pthread_create.c:308
#4  0x00007ff7ef6fa4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7ff7c3fff700 (LWP 4763)):
#0  0x00007ff7ef6eeb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007ff7e7f07ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7e7f08124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7f008a426 in QEventDispatcherGlib::processEvents (this=0x7ff7bc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007ff7f0059c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007ff7f0059ed7 in QEventLoop::exec (this=0x7ff7c3ffedc0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007ff7eff58fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007ff7eff5bfcb in QThreadPrivate::start (arg=0x14980f0) at thread/qthread_unix.cpp:298
#8  0x00007ff7ed197e9a in start_thread (arg=0x7ff7c3fff700) at pthread_create.c:308
#9  0x00007ff7ef6fa4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7ff7727de700 (LWP 4849)):
[KCrash Handler]
#6  QMutex::lock (this=0x65007200630048) at thread/qmutex.cpp:150
#7  0x00007ff7e8c286c2 in Soprano::Error::ErrorCache::clearError() const () from /usr/lib/libsoprano.so.4
#8  0x00007ff7e8c28c78 in Soprano::Error::ErrorCache::setError(Soprano::Error::Error const&) const () from /usr/lib/libsoprano.so.4
#9  0x00007ff7e18a960c in Soprano::Client::DBusModel::executeQuery(QString const&, Soprano::Query::QueryLanguage, QString const&) const () from /usr/lib/libsopranoclient.so.1
#10 0x00007ff7e8948b1c in Nepomuk::MainModel::executeQuery (this=0x12264f0, query=..., language=Soprano::Query::QueryLanguageSparql, userQueryLanguage=...) at ../../nepomuk/core/nepomukmainmodel.cpp:212
#11 0x00007ff7e893cb4e in Nepomuk::ResourceData::load (this=0x7ff764002e50) at ../../nepomuk/core/resourcedata.cpp:427
#12 0x00007ff7e893d68c in Nepomuk::ResourceData::property (this=0x7ff764002e50, uri=...) at ../../nepomuk/core/resourcedata.cpp:268
#13 0x00007ff7e8953e43 in Nepomuk::Resource::property (this=0x7ff7727ddcc0, uri=...) at ../../nepomuk/core/resource.cpp:301
#14 0x00007ff7ebd12c5a in MessageCore::NepomukResourceRetrieverRunnable::run (this=0x20ced90) at ../../messagecore/asyncnepomukresourceretriever.cpp:47
#15 0x00007ff7eff4f4f2 in QThreadPoolThread::run (this=0x20b4620) at concurrent/qthreadpool.cpp:107
#16 0x00007ff7eff5bfcb in QThreadPrivate::start (arg=0x20b4620) at thread/qthread_unix.cpp:298
#17 0x00007ff7ed197e9a in start_thread (arg=0x7ff7727de700) at pthread_create.c:308
#18 0x00007ff7ef6fa4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#19 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7ff7f23d87c0 (LWP 4735)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007ff7eff5c4db in wait (time=18446744073709551615, this=0x20b3470) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x20b3378, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff7eff4ec7e in QThreadPoolPrivate::waitForDone (this=0x20b32f0, msecs=-1) at concurrent/qthreadpool.cpp:298
#4  0x00007ff7eff506a4 in QThreadPool::~QThreadPool (this=0x20b30f8, __in_chrg=<optimized out>) at concurrent/qthreadpool.cpp:440
#5  0x00007ff7ebd11624 in ~AsyncNepomukResourceRetrieverPrivate (this=0x20b30f0, __in_chrg=<optimized out>) at ../../messagecore/asyncnepomukresourceretriever.cpp:58
#6  MessageCore::AsyncNepomukResourceRetriever::~AsyncNepomukResourceRetriever (this=0x20b3130, __in_chrg=<optimized out>) at ../../messagecore/asyncnepomukresourceretriever.cpp:113
#7  0x00007ff7eb76be79 in ~CallbackNepomukResourceRetriever (this=0x20b3130, __in_chrg=<optimized out>) at ../../messagelist/core/callbacknepomukresourceretriever.h:32
#8  MessageList::CallbackNepomukResourceRetriever::~CallbackNepomukResourceRetriever (this=0x20b3130, __in_chrg=<optimized out>) at ../../messagelist/core/callbacknepomukresourceretriever.h:32
#9  0x00007ff7ef643921 in __run_exit_handlers (status=1, listp=0x7ff7ef9be688, run_list_atexit=true) at exit.c:78
#10 0x00007ff7ef6439a5 in __GI_exit (status=<optimized out>) at exit.c:100
#11 0x00007ff7d5623624 in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#12 0x00007ff7f1dcce78 in KApplication::xioErrhandler (this=0x7fff5ed4a820, dpy=0xcc3e10) at ../../kdeui/kernel/kapplication.cpp:419
#13 0x00007ff7eeee841e in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#14 0x00007ff7eeee5e1d in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#15 0x00007ff7eeed742f in XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#16 0x00007ff7f062bbf7 in x11EventSourcePrepare (s=0xc69100, timeout=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:77
#17 0x00007ff7e7f0771e in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007ff7e7f07f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007ff7e7f08124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007ff7f008a3bf in QEventDispatcherGlib::processEvents (this=0xc04b00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#21 0x00007ff7f062bd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#22 0x00007ff7f0059c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007ff7f0059ed7 in QEventLoop::exec (this=0x7fff5ed49010, flags=...) at kernel/qeventloop.cpp:204
#24 0x00007ff7f0a53936 in QDialog::exec (this=0x1222520) at dialogs/qdialog.cpp:554
#25 0x00007ff7f1d356fa in KMessageBox::createKMessageBox (dialog=<optimized out>, icon=..., text=..., strlist=..., ask=..., checkboxReturn=0x7fff5ed497af, options=..., details=..., notifyType=QMessageBox::Information) at ../../kdeui/dialogs/kmessagebox.cpp:344
#26 0x00007ff7f1d35ed4 in KMessageBox::createKMessageBox (dialog=0x1222520, icon=QMessageBox::Information, text=..., strlist=..., ask=..., checkboxReturn=0x7fff5ed497af, options=..., details=...) at ../../kdeui/dialogs/kmessagebox.cpp:159
#27 0x00007ff7f1d38d05 in KMessageBox::questionYesNoListWId (parent_id=88080406, text=..., strlist=..., caption=..., buttonYes_=..., buttonNo_=..., dontAskAgainName=..., options=...) at ../../kdeui/dialogs/kmessagebox.cpp:486
#28 0x00007ff7f1d38eeb in KMessageBox::questionYesNoList (parent=<optimized out>, text=..., strlist=..., caption=..., buttonYes=..., buttonNo=..., dontAskAgainName=..., options=...) at ../../kdeui/dialogs/kmessagebox.cpp:446
#29 0x00007ff7f1d38f61 in KMessageBox::questionYesNo (parent=<optimized out>, text=..., caption=..., buttonYes=..., buttonNo=..., dontAskAgainName=..., options=...) at ../../kdeui/dialogs/kmessagebox.cpp:361
#30 0x00007ff7f116a8a5 in KMKernel::askToGoOnline () at ../../kmail/kmkernel.cpp:1013
#31 0x00007ff7f116ab0a in KMKernel::checkMailOnStartup (this=0x7fff5ed4a750) at ../../kmail/kmkernel.cpp:976
#32 0x00007ff7f11b793a in KMMainWidget::qt_static_metacall (_o=0xcfb4f0, _c=<optimized out>, _id=<optimized out>, _a=0xc922e0) at ./kmmainwidget.moc:331
#33 0x00007ff7f0074446 in QObject::event (this=0xcfb4f0, e=<optimized out>) at kernel/qobject.cpp:1195
#34 0x00007ff7f05d3b7b in QWidget::event (this=0xcfb4f0, event=0xc923f0) at kernel/qwidget.cpp:8821
#35 0x00007ff7f0583894 in notify_helper (e=0xc923f0, receiver=0xcfb4f0, this=0xc67da0) at kernel/qapplication.cpp:4559
#36 QApplicationPrivate::notify_helper (this=0xc67da0, receiver=0xcfb4f0, e=0xc923f0) at kernel/qapplication.cpp:4531
#37 0x00007ff7f0588713 in QApplication::notify (this=0x7fff5ed4a820, receiver=0xcfb4f0, e=0xc923f0) at kernel/qapplication.cpp:4420
#38 0x00007ff7f1dcebb6 in KApplication::notify (this=0x7fff5ed4a820, receiver=0xcfb4f0, event=0xc923f0) at ../../kdeui/kernel/kapplication.cpp:311
#39 0x00007ff7f005ae9c in QCoreApplication::notifyInternal (this=0x7fff5ed4a820, receiver=0xcfb4f0, event=0xc923f0) at kernel/qcoreapplication.cpp:876
#40 0x00007ff7f005ec6a in sendEvent (event=0xc923f0, receiver=0xcfb4f0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xc03220) at kernel/qcoreapplication.cpp:1500
#42 0x00007ff7f0089f93 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#43 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:279
#44 0x00007ff7e7f07c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007ff7e7f08060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007ff7e7f08124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#47 0x00007ff7f008a3bf in QEventDispatcherGlib::processEvents (this=0xc04b00, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#48 0x00007ff7f062bd5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#49 0x00007ff7f0059c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#50 0x00007ff7f0059ed7 in QEventLoop::exec (this=0x7fff5ed4a700, flags=...) at kernel/qeventloop.cpp:204
#51 0x00007ff7f005ef67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#52 0x0000000000402bd3 in main (argc=<optimized out>, argv=<optimized out>) at ../../kmail/main.cpp:145

This bug may be a duplicate of or related to bug 299272.

Possible duplicates by query: bug 300648, bug 299272, bug 296497.

Reported using DrKonqi