Bug 323456

Application: nepomukservicestub (0.1.0)
KDE Platform Version: 4.10.5
Qt Version: 4.8.4
Operating System: Linux 3.8.0-27-generic x86_64
Distribution: Ubuntu 13.04

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

The computer was unattended. There were video files being written, but I had excluded video files from indexing. There might have been temporary files in my home directory being written.

- Unusual behavior I noticed:

A nepomuk crash warning from apport when I came back.

-- 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 0x7fceb16de7c0 (LWP 17877))]

Thread 7 (Thread 0x7fce98cbb700 (LWP 18052)):
#0  0x00007fceaed213cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fceae3491dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce98cbad70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce98cbad70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fceb10a2410 in QThread::exec (this=this@entry=0x276c9e0) at thread/qthread.cpp:542
#7  0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x276c9e0) at ../../server/serverconnection.cpp:151
#8  0x00007fceb10a4bec in QThreadPrivate::start (arg=0x276c9e0) at thread/qthread_unix.cpp:338
#9  0x00007fceaea1ef8e in start_thread (arg=0x7fce98cbb700) at pthread_create.c:311
#10 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 6 (Thread 0x7fce937fe700 (LWP 18060)):
#0  0x00007fceaed213cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fceae3491dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce937fdd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce937fdd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fceb10a2410 in QThread::exec (this=this@entry=0x25dca90) at thread/qthread.cpp:542
#7  0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x25dca90) at ../../server/serverconnection.cpp:151
#8  0x00007fceb10a4bec in QThreadPrivate::start (arg=0x25dca90) at thread/qthread_unix.cpp:338
#9  0x00007fceaea1ef8e in start_thread (arg=0x7fce937fe700) at pthread_create.c:311
#10 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 5 (Thread 0x7fce92ffd700 (LWP 18076)):
#0  0x00007fceaed213cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fceae3491dc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce92ffcd70, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce92ffcd70, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fceb10a2410 in QThread::exec (this=this@entry=0x276c8d0) at thread/qthread.cpp:542
#7  0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x276c8d0) at ../../server/serverconnection.cpp:151
#8  0x00007fceb10a4bec in QThreadPrivate::start (arg=0x276c8d0) at thread/qthread_unix.cpp:338
#9  0x00007fceaea1ef8e in start_thread (arg=0x7fce92ffd700) at pthread_create.c:311
#10 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fce927fc700 (LWP 18077)):
#0  0x00007fceae388359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fceae3885e9 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fceae348366 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fceae3490b4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce780008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce927fbd70, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce927fbd70, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fceb10a2410 in QThread::exec (this=this@entry=0x27aa7c0) at thread/qthread.cpp:542
#9  0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x27aa7c0) at ../../server/serverconnection.cpp:151
#10 0x00007fceb10a4bec in QThreadPrivate::start (arg=0x27aa7c0) at thread/qthread_unix.cpp:338
#11 0x00007fceaea1ef8e in start_thread (arg=0x7fce927fc700) at pthread_create.c:311
#12 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fce91ffb700 (LWP 18080)):
#0  idleTimerSourcePrepare (source=0x7fce7c0028b0, timeout=0x7fce91ffaba4) at kernel/qeventdispatcher_glib.cpp:208
#1  0x00007fceae348900 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fceae3490fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce91ffad70, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce91ffad70, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fceb10a2410 in QThread::exec (this=this@entry=0x26fc5f0) at thread/qthread.cpp:542
#8  0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x26fc5f0) at ../../server/serverconnection.cpp:151
#9  0x00007fceb10a4bec in QThreadPrivate::start (arg=0x26fc5f0) at thread/qthread_unix.cpp:338
#10 0x00007fceaea1ef8e in start_thread (arg=0x7fce91ffb700) at pthread_create.c:311
#11 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fce917fa700 (LWP 22223)):
[KCrash Handler]
#6  0x0000000002732890 in ?? ()
#7  0x00007fceab8a830e in Soprano::FilterModel::executeQuery (this=this@entry=0x272ec80, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:165
#8  0x00007fcea03ce298 in Nepomuk2::VirtuosoInferenceModel::executeQuery (this=0x272ec80, query=..., language=<optimized out>, userQueryLanguage=...) at ../../../services/storage/virtuosoinferencemodel.cpp:61
#9  0x00007fceab8a82f7 in Soprano::FilterModel::executeQuery (this=0x272ea00, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:164
#10 0x00007fceab8a82f7 in Soprano::FilterModel::executeQuery (this=0x26ecc40, query=..., language=<optimized out>, userQueryLanguage=...) at ../../soprano/filtermodel.cpp:164
#11 0x00007fcea011ccc5 in Soprano::Server::ServerConnection::Private::query (this=this@entry=0x2a53d80) at ../../server/serverconnection.cpp:539
#12 0x00007fcea011e08d in Soprano::Server::ServerConnection::Private::_s_readNextCommand (this=0x2a53d80) at ../../server/serverconnection.cpp:228
#13 0x00007fceb11b60ef in QMetaObject::activate (sender=0x7fce7000ddd0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#14 0x00007fceb11b60ef in QMetaObject::activate (sender=sender@entry=0x7fce70002568, m=m@entry=0x7fceb14fb480 <QIODevice::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3539
#15 0x00007fceb1200090 in QIODevice::readyRead (this=this@entry=0x7fce70002568) at .moc/release-shared/moc_qiodevice.cpp:105
#16 0x00007fcead4d92ac in QAbstractSocketPrivate::canReadNotification (this=0x7fce70002780) at socket/qabstractsocket.cpp:654
#17 0x00007fcead4e3e2d in event (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1151
#18 QReadNotifier::event (this=<optimized out>, e=<optimized out>) at socket/qnativesocketengine.cpp:1148
#19 0x00007fceaf4ca8ec in QApplicationPrivate::notify_helper (this=this@entry=0x2472780, receiver=receiver@entry=0x7fce700099d0, e=e@entry=0x7fce917f9b50) at kernel/qapplication.cpp:4567
#20 0x00007fceaf4cd25b in QApplication::notify (this=this@entry=0x7ffff6ec7030, receiver=receiver@entry=0x7fce700099d0, e=e@entry=0x7fce917f9b50) at kernel/qapplication.cpp:4428
#21 0x00007fceb04d41a6 in KApplication::notify (this=0x7ffff6ec7030, receiver=0x7fce700099d0, event=0x7fce917f9b50) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x00007fceb11a163e in QCoreApplication::notifyInternal (this=0x7ffff6ec7030, receiver=0x7fce700099d0, event=event@entry=0x7fce917f9b50) at kernel/qcoreapplication.cpp:946
#23 0x00007fceb11d05c8 in sendEvent (event=0x7fce917f9b50, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 socketNotifierSourceDispatch (source=0x7fce7000da30) at kernel/qeventdispatcher_glib.cpp:110
#25 0x00007fceae348f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#26 0x00007fceae349248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007fceb11d0036 in QEventDispatcherGlib::processEvents (this=0x7fce70003b80, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#29 0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7fce917f9d70, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7fce917f9d70, flags=...) at kernel/qeventloop.cpp:204
#31 0x00007fceb10a2410 in QThread::exec (this=this@entry=0x26cdcb0) at thread/qthread.cpp:542
#32 0x00007fcea011cefe in Soprano::Server::ServerConnection::run (this=0x26cdcb0) at ../../server/serverconnection.cpp:151
#33 0x00007fceb10a4bec in QThreadPrivate::start (arg=0x26cdcb0) at thread/qthread_unix.cpp:338
#34 0x00007fceaea1ef8e in start_thread (arg=0x7fce917fa700) at pthread_create.c:311
#35 0x00007fceaed2de1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fceb16de7c0 (LWP 17877)):
#0  0x00007fceaed26233 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fceb11cd3ca in qt_safe_select (nfds=13, fdread=0x7ffff6ec5ef0, fdwrite=0x7ffff6ec5f70, fdexcept=fdexcept@entry=0x0, orig_timeout=orig_timeout@entry=0x7ffff6ec5ea0) at kernel/qcore_unix.cpp:93
#2  0x00007fceb117bbbc in select_msecs (nfds=<optimized out>, fdread=<optimized out>, fdwrite=<optimized out>, timeout=<optimized out>) at io/qprocess_unix.cpp:1011
#3  0x00007fceb117d3f4 in QProcessPrivate::waitForFinished (this=this@entry=0x275a790, msecs=msecs@entry=29998) at io/qprocess_unix.cpp:1227
#4  0x00007fceb1136f6e in QProcess::waitForFinished (this=this@entry=0x7ffff6ec60e0, msecs=29998, msecs@entry=30000) at io/qprocess.cpp:1759
#5  0x00007fce99e57ced in (anonymous namespace)::determineVirtuosoVersion (virtuosoBin=...) at ../../../backends/virtuoso/virtuosobackend.cpp:56
#6  0x00007fce99e58120 in Soprano::Virtuoso::BackendPlugin::isAvailable (this=<optimized out>) at ../../../backends/virtuoso/virtuosobackend.cpp:229
#7  0x00007fcea037fe0f in Nepomuk2::Repository::open (this=0x26ecc40) at ../../../services/storage/repository.cpp:136
#8  0x00007fcea038172f in Nepomuk2::Repository::slotVirtuosoStopped (this=0x26ecc40, normalExit=240) at ../../../services/storage/repository.cpp:439
#9  0x00007fceb11b60ef in QMetaObject::activate (sender=0x272c9b0, m=m@entry=0x7fce9a070680 <Soprano::VirtuosoModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffff6ec6510) at kernel/qobject.cpp:3539
#10 0x00007fce99e5560f in Soprano::VirtuosoModel::virtuosoStopped (this=<optimized out>, _t1=false) at ./virtuosomodel.moc:104
#11 0x00007fceb11bb5be in QObject::event (this=0x272c9b0, e=<optimized out>) at kernel/qobject.cpp:1194
#12 0x00007fceaf4ca8ec in QApplicationPrivate::notify_helper (this=this@entry=0x2472780, receiver=receiver@entry=0x272c9b0, e=e@entry=0x26f1420) at kernel/qapplication.cpp:4567
#13 0x00007fceaf4cd25b in QApplication::notify (this=this@entry=0x7ffff6ec7030, receiver=receiver@entry=0x272c9b0, e=e@entry=0x26f1420) at kernel/qapplication.cpp:4428
#14 0x00007fceb04d41a6 in KApplication::notify (this=0x7ffff6ec7030, receiver=0x272c9b0, event=0x26f1420) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007fceb11a163e in QCoreApplication::notifyInternal (this=0x7ffff6ec7030, receiver=receiver@entry=0x272c9b0, event=event@entry=0x26f1420) at kernel/qcoreapplication.cpp:946
#16 0x00007fceb11a5171 in sendEvent (event=0x26f1420, receiver=0x272c9b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x244d190) at kernel/qcoreapplication.cpp:1570
#18 0x00007fceb11a54a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#19 0x00007fceb11cfe83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#20 postEventSourceDispatch (s=0x2485550) at kernel/qeventdispatcher_glib.cpp:279
#21 0x00007fceae348f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fceae349248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fceae349304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007fceb11d0016 in QEventDispatcherGlib::processEvents (this=0x244eac0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007fceaf5701ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007fceb11a038f in QEventLoop::processEvents (this=this@entry=0x7ffff6ec6e10, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007fceb11a0618 in QEventLoop::exec (this=this@entry=0x7ffff6ec6e10, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007fceb11a5cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#29 0x00007fceaf4c8ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#30 0x0000000000403e70 in main (argc=<optimized out>, argv=0x7ffff6ec7278) at ../../servicestub/main.cpp:180

This bug may be a duplicate of or related to bug 317755.

Possible duplicates by query: bug 321854, bug 321349, bug 321085, bug 320857, bug 320817.

Reported using DrKonqi