Application: nepomukservicestub (0.1.0)
KDE Platform Version: 4.10.4
Qt Version: 4.8.4
Operating System: Linux 3.8.0-25-generic x86_64
Distribution: Ubuntu 13.04

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

Every time I restart KDE

- Unusual behavior I noticed:

Restart of nepomuk and virtuoso-t from error handler fails.

- Custom settings of the application:

Note that I am using viewports in the proprietary Nvidia driver.

-- Backtrace:
Application: Nepomuk Service Stub (nepomukservicestub), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc3a62507c0 (LWP 4866))]

Thread 8 (Thread 0x7fc38d82d700 (LWP 5363)):
#0  0x00007fc3a2ef835c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc3a2ef85b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc3a2eb890b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a2eb90fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc38d82cd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc38d82cd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x1539250) at thread/qthread.cpp:542
#9  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x1539250) at ../../server/serverconnection.cpp:151
#10 0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x1539250) at thread/qthread_unix.cpp:338
#11 0x00007fc3a358ef8e in start_thread (arg=0x7fc38d82d700) at pthread_create.c:311
#12 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 7 (Thread 0x7fc38d02c700 (LWP 5364)):
#0  0x00007fc3a2ef836d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc3a2ef85b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc3a2eb90d5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc38d02bd70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc38d02bd70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x1545b60) at thread/qthread.cpp:542
#8  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x1545b60) at ../../server/serverconnection.cpp:151
#9  0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x1545b60) at thread/qthread_unix.cpp:338
#10 0x00007fc3a358ef8e in start_thread (arg=0x7fc38d02c700) at pthread_create.c:311
#11 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7fc38c82b700 (LWP 5365)):
#0  0x00007fc3a38913cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc3a2eb91dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc38c82ad70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc38c82ad70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x1996340) at thread/qthread.cpp:542
#7  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x1996340) at ../../server/serverconnection.cpp:151
#8  0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x1996340) at thread/qthread_unix.cpp:338
#9  0x00007fc3a358ef8e in start_thread (arg=0x7fc38c82b700) at pthread_create.c:311
#10 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7fc37ffff700 (LWP 5371)):
#0  0x00007fc3a3591075 in __GI___pthread_mutex_lock (mutex=0x7fc374000a60) at pthread_mutex_lock.c:95
#1  0x00007fc3a2ef85c1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc3a2eb890b in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a2eb90fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3740008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc37fffed70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc37fffed70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x1996460) at thread/qthread.cpp:542
#9  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x1996460) at ../../server/serverconnection.cpp:151
#10 0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x1996460) at thread/qthread_unix.cpp:338
#11 0x00007fc3a358ef8e in start_thread (arg=0x7fc37ffff700) at pthread_create.c:311
#12 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fc37f7fe700 (LWP 5373)):
#0  __libc_disable_asynccancel () at ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007fc3a38913d9 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007fc3a2eb91dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc36c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc37f7fdd70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc37f7fdd70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x16ca450) at thread/qthread.cpp:542
#8  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x16ca450) at ../../server/serverconnection.cpp:151
#9  0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x16ca450) at thread/qthread_unix.cpp:338
#10 0x00007fc3a358ef8e in start_thread (arg=0x7fc37f7fe700) at pthread_create.c:311
#11 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fc37e7fc700 (LWP 5638)):
#0  0x00007fc3a38913cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc3a2eb91dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3640008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc37e7fbd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc37e7fbd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x19aecf0) at thread/qthread.cpp:542
#7  0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x19aecf0) at ../../server/serverconnection.cpp:151
#8  0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x19aecf0) at thread/qthread_unix.cpp:338
#9  0x00007fc3a358ef8e in start_thread (arg=0x7fc37e7fc700) at pthread_create.c:311
#10 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fc37dffb700 (LWP 7304)):
[KCrash Handler]
#6  QMutex::lock (this=0x2800001008) at thread/qmutex.cpp:150
#7  0x00007fc3a040c17b in lockInline (this=<optimized out>) at /usr/include/qt4/QtCore/qmutex.h:198
#8  QMutexLocker (m=<optimized out>, this=0x7fc37dffa010) at /usr/include/qt4/QtCore/qmutex.h:109
#9  Soprano::Error::ErrorCache::setError (this=this@entry=0x7fc368004e30, error=...) at ../../soprano/error.cpp:221
#10 0x00007fc38e9d5031 in Soprano::ODBC::Connection::execute (this=this@entry=0x7fc368004e20, request=...) at ../../../backends/virtuoso/odbcconnection.cpp:113
#11 0x00007fc38e9d547b in Soprano::ODBC::Connection::executeQuery (this=this@entry=0x7fc368004e20, request=...) at ../../../backends/virtuoso/odbcconnection.cpp:89
#12 0x00007fc38e9c607c in Soprano::VirtuosoModelPrivate::sqlQuery (this=0x1689a50, query=...) at ../../../backends/virtuoso/virtuosomodel.cpp:113
#13 0x00007fc38e9c7461 in Soprano::VirtuosoModel::executeQuery (this=0x1689520, query=..., language=Soprano::Query::QueryLanguageUser, userQueryLanguage=...) at ../../../backends/virtuoso/virtuosomodel.cpp:474
#14 0x00007fc3a04182f7 in Soprano::FilterModel::executeQuery (this=this@entry=0x168b7f0, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:164
#15 0x00007fc394f40298 in Nepomuk2::VirtuosoInferenceModel::executeQuery (this=0x168b7f0, query=..., language=<optimized out>, userQueryLanguage=...) at ../../../services/storage/virtuosoinferencemodel.cpp:61
#16 0x00007fc3a04182f7 in Soprano::FilterModel::executeQuery (this=0x168b570, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:164
#17 0x00007fc3a04182f7 in Soprano::FilterModel::executeQuery (this=0x1649610, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:164
#18 0x00007fc394c8ecc5 in Soprano::Server::ServerConnection::Private::query (this=this@entry=0x19af420) at ../../server/serverconnection.cpp:539
#19 0x00007fc394c9008d in Soprano::Server::ServerConnection::Private::_s_readNextCommand (this=0x19af420) at ../../server/serverconnection.cpp:228
#20 0x00007fc3a5d280ef in QMetaObject::activate (sender=0x7fc3680013c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#21 0x00007fc3a5d280ef in QMetaObject::activate (sender=sender@entry=0x7fc368002a08, m=m@entry=0x7fc3a606d480 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#22 0x00007fc3a5d72090 in QIODevice::readyRead (this=this@entry=0x7fc368002a08) at .moc/release-shared/moc_qiodevice.cpp:105
#23 0x00007fc3a20492ac in QAbstractSocketPrivate::canReadNotification (this=0x7fc368002a60) at socket/qabstractsocket.cpp:654
#24 0x00007fc3a2053e2d in event (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1151
#25 QReadNotifier::event (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1148
#26 0x00007fc3a403a8ec in QApplicationPrivate::notify_helper (this=this@entry=0x13d1780, receiver=receiver@entry=0x7fc3680033e0, e=e@entry=0x7fc37dffab50) at kernel/qapplication.cpp:4567
#27 0x00007fc3a403d25b in QApplication::notify (this=this@entry=0x7fffeb8e3a10, receiver=receiver@entry=0x7fc3680033e0, e=e@entry=0x7fc37dffab50) at kernel/qapplication.cpp:4428
#28 0x00007fc3a5045af6 in KApplication::notify (this=0x7fffeb8e3a10, receiver=0x7fc3680033e0, event=0x7fc37dffab50) at ../../kdeui/kernel/kapplication.cpp:311
#29 0x00007fc3a5d1363e in QCoreApplication::notifyInternal (this=0x7fffeb8e3a10, receiver=0x7fc3680033e0, event=event@entry=0x7fc37dffab50) at kernel/qcoreapplication.cpp:946
#30 0x00007fc3a5d425c8 in sendEvent (event=0x7fc37dffab50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 socketNotifierSourceDispatch (source=0x7fc368001350) at kernel/qeventdispatcher_glib.cpp:110
#32 0x00007fc3a2eb8f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fc3a2eb9248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fc3a5d42036 in QEventDispatcherGlib::processEvents (this=0x7fc3680008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#36 0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fc37dffad70, flags=...) at kernel/qeventloop.cpp:149
#37 0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fc37dffad70, flags=...) at kernel/qeventloop.cpp:204
#38 0x00007fc3a5c14410 in QThread::exec (this=this@entry=0x16b0eb0) at thread/qthread.cpp:542
#39 0x00007fc394c8eefe in Soprano::Server::ServerConnection::run (this=0x16b0eb0) at ../../server/serverconnection.cpp:151
#40 0x00007fc3a5c16bec in QThreadPrivate::start (arg=0x16b0eb0) at thread/qthread_unix.cpp:338
#41 0x00007fc3a358ef8e in start_thread (arg=0x7fc37dffb700) at pthread_create.c:311
#42 0x00007fc3a389de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fc3a62507c0 (LWP 4866)):
#0  0x00007fc3a3896233 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fc3a5d3f3ca in qt_safe_select (nfds=13, fdread=0x7fffeb8e25a0, fdwrite=0x7fffeb8e2620, fdexcept=fdexcept@entry=0x0, orig_timeout=orig_timeout@entry=0x7fffeb8e2550) at kernel/qcore_unix.cpp:93
#2  0x00007fc3a5cedbbc in select_msecs (nfds=<optimized out>, fdread=<optimized out>, fdwrite=<optimized out>, timeout=<optimized out>) at io/qprocess_unix.cpp:1011
#3  0x00007fc3a5cef3f4 in QProcessPrivate::waitForFinished (this=this@entry=0x16aee70, msecs=msecs@entry=29987) at io/qprocess_unix.cpp:1227
#4  0x00007fc3a5ca8f6e in QProcess::waitForFinished (this=this@entry=0x7fffeb8e2790, msecs=29987, msecs@entry=30000) at io/qprocess.cpp:1759
#5  0x00007fc38e9c9ced in (anonymous namespace)::determineVirtuosoVersion (virtuosoBin=...) at ../../../backends/virtuoso/virtuosobackend.cpp:56
#6  0x00007fc38e9caa9c in Soprano::Virtuoso::BackendPlugin::createModel (this=0x164aea0, settings=...) at ../../../backends/virtuoso/virtuosobackend.cpp:104
#7  0x00007fc394ef2575 in Nepomuk2::Repository::open (this=0x1649610) at ../../../services/storage/repository.cpp:187
#8  0x00007fc394ef372f in Nepomuk2::Repository::slotVirtuosoStopped (this=0x1649610, normalExit=160) at ../../../services/storage/repository.cpp:439
#9  0x00007fc3a5d280ef in QMetaObject::activate (sender=0x1689520, m=m@entry=0x7fc38ebe2680 <Soprano::VirtuosoModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fffeb8e2ef0) at kernel/qobject.cpp:3539
#10 0x00007fc38e9c760f in Soprano::VirtuosoModel::virtuosoStopped (this=<optimized out>, _t1=false) at ./virtuosomodel.moc:104
#11 0x00007fc3a5d2d5be in QObject::event (this=0x1689520, e=<optimized out>) at kernel/qobject.cpp:1194
#12 0x00007fc3a403a8ec in QApplicationPrivate::notify_helper (this=this@entry=0x13d1780, receiver=receiver@entry=0x1689520, e=e@entry=0x164ece0) at kernel/qapplication.cpp:4567
#13 0x00007fc3a403d25b in QApplication::notify (this=this@entry=0x7fffeb8e3a10, receiver=receiver@entry=0x1689520, e=e@entry=0x164ece0) at kernel/qapplication.cpp:4428
#14 0x00007fc3a5045af6 in KApplication::notify (this=0x7fffeb8e3a10, receiver=0x1689520, event=0x164ece0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fc3a5d1363e in QCoreApplication::notifyInternal (this=0x7fffeb8e3a10, receiver=receiver@entry=0x1689520, event=event@entry=0x164ece0) at kernel/qcoreapplication.cpp:946
#16 0x00007fc3a5d17171 in sendEvent (event=0x164ece0, receiver=0x1689520) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x13ac190) at kernel/qcoreapplication.cpp:1570
#18 0x00007fc3a5d174a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#19 0x00007fc3a5d41e83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#20 postEventSourceDispatch (s=0x13e44b0) at kernel/qeventdispatcher_glib.cpp:279
#21 0x00007fc3a2eb8f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fc3a2eb9248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fc3a2eb9304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fc3a5d42016 in QEventDispatcherGlib::processEvents (this=0x13adac0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007fc3a40e013e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007fc3a5d1238f in QEventLoop::processEvents (this=this@entry=0x7fffeb8e37f0, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007fc3a5d12618 in QEventLoop::exec (this=this@entry=0x7fffeb8e37f0, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007fc3a5d17cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#29 0x00007fc3a4038ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#30 0x0000000000403e70 in main (argc=<optimized out>, argv=0x7fffeb8e3c58) at ../../servicestub/main.cpp:180

This bug may be a duplicate of or related to bug 312760.

Possible duplicates by query: bug 320946, bug 320857, bug 320817, bug 320676, bug 320649.

Reported using DrKonqi