Application: nepomukservicestub (0.2)
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-8-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
Very frequent phenomenon without doing anything special.
Nepomuk just crashes and I have to restart it by pressing the "Restart Application" button in Drkonqi.

The last two crashes before reporting this bug happened while I was chatting in skype.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Nepomuk Service Stub (nepomukservicestub), signal: Aborted
[Current thread is 1 (Thread 0x7f802422f780 (LWP 31000))]

Thread 3 (Thread 0x7f80134f6700 (LWP 31002)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f802189680f in _L_lock_12013 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f80218948d8 in __libc_free (mem=0x7f8021ba71c0) at malloc.c:3736
#3  0x00007f8023cd38dc in ~QByteArray (this=<value optimized out>, __in_chrg=<value optimized out>) at ../../include/QtCore/../../src/corelib/tools/qbytearray.h:383
#4  ~QUrlPrivate (this=<value optimized out>, __in_chrg=<value optimized out>) at io/qurl.cpp:294
#5  QUrl::~QUrl (this=<value optimized out>, __in_chrg=<value optimized out>) at io/qurl.cpp:4186
#6  0x00007f801e717feb in ?? () from /usr/lib/libsoprano.so.4
#7  0x00007f8013b2b50d in ~QHashNode (node=0x7f800002b8d0) at /usr/include/qt4/QtCore/qhash.h:217
#8  QHash<QUrl, Soprano::Node>::deleteNode2 (node=0x7f800002b8d0) at /usr/include/qt4/QtCore/qhash.h:519
#9  0x00007f8023c50f6d in QHashData::free_helper (this=0x7f80000090e0, node_delete=0x7f8013b2b500 <QHash<QUrl, Soprano::Node>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:271
#10 0x00007f8013b2b5a3 in freeData (node=0x7f80000094c0) at /usr/include/qt4/QtCore/qhash.h:568
#11 ~QHash (node=0x7f80000094c0) at /usr/include/qt4/QtCore/qhash.h:284
#12 ~QMultiHash (node=0x7f80000094c0) at /usr/include/qt4/QtCore/qhash.h:923
#13 ~ResourceStruct (node=0x7f80000094c0) at ../../../../nepomuk/services/strigi/nepomukindexfeeder.h:102
#14 ~QHashNode (node=0x7f80000094c0) at /usr/include/qt4/QtCore/qhash.h:217
#15 QHash<QUrl, Nepomuk::IndexFeeder::ResourceStruct>::deleteNode2 (node=0x7f80000094c0) at /usr/include/qt4/QtCore/qhash.h:519
#16 0x00007f8023c50f6d in QHashData::free_helper (this=0x7f80000060f0, node_delete=0x7f8013b2b580 <QHash<QUrl, Nepomuk::IndexFeeder::ResourceStruct>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:271
#17 0x00007f8013b2b365 in freeData (this=0x1fe68d0) at /usr/include/qt4/QtCore/qhash.h:568
#18 ~QHash (this=0x1fe68d0) at /usr/include/qt4/QtCore/qhash.h:284
#19 ~Request (this=0x1fe68d0) at ../../../../nepomuk/services/strigi/nepomukindexfeeder.h:110
#20 Nepomuk::IndexFeeder::run (this=0x1fe68d0) at ../../../../nepomuk/services/strigi/nepomukindexfeeder.cpp:171
#21 0x00007f8023c35175 in QThreadPrivate::start (arg=0x1fe68d0) at thread/qthread_unix.cpp:320
#22 0x00007f8021600d8c in start_thread (arg=0x7f80134f6700) at pthread_create.c:304
#23 0x00007f80218fe04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#24 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f800ec6f700 (LWP 31031)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f802189680f in _L_lock_12013 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007f80218948d8 in __libc_free (mem=0x7f8021ba71c0) at malloc.c:3736
#3  0x00007f8013b226c1 in node_destruct (this=0x1efd580) at /usr/include/qt4/QtCore/qlist.h:375
#4  erase (this=0x1efd580) at /usr/include/qt4/QtCore/qlist.h:452
#5  removeFirst (this=0x1efd580) at /usr/include/qt4/QtCore/qlist.h:273
#6  takeFirst (this=0x1efd580) at /usr/include/qt4/QtCore/qlist.h:477
#7  dequeue (this=0x1efd580) at /usr/include/qt4/QtCore/qqueue.h:60
#8  Nepomuk::IndexScheduler::run (this=0x1efd580) at ../../../../nepomuk/services/strigi/indexscheduler.cpp:334
#9  0x00007f8023c35175 in QThreadPrivate::start (arg=0x1efd580) at thread/qthread_unix.cpp:320
#10 0x00007f8021600d8c in start_thread (arg=0x7f800ec6f700) at pthread_create.c:304
#11 0x00007f80218fe04d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f802422f780 (LWP 31000)):
[KCrash Handler]
#6  0x00007f802184bd05 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f802184fab6 in abort () at abort.c:92
#8  0x00007f8021884d7b in __libc_message (do_abort=2, fmt=0x7f802196d400 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#9  0x00007f8021890a8f in malloc_printerr (av=<value optimized out>, p=0x20a9b70) at malloc.c:6283
#10 _int_free (av=<value optimized out>, p=0x20a9b70) at malloc.c:4795
#11 0x00007f80218948e3 in __libc_free (mem=<value optimized out>) at malloc.c:3738
#12 0x00007f8023c7a0fc in QString::free (d=0x20a9b80) at tools/qstring.cpp:1185
#13 0x00007f8023cf7162 in ~QString (this=0x1e2df00, type=...) at ../../include/QtCore/../../src/corelib/tools/qstring.h:883
#14 QFSFileEngine::fileFlags (this=0x1e2df00, type=...) at io/qfsfileengine_unix.cpp:879
#15 0x00007f8023cb5315 in QFileInfoPrivate::getFileFlags (this=0x2092040, request=...) at io/qfileinfo.cpp:126
#16 0x00007f8023cb607e in QFileInfo::exists (this=<value optimized out>) at io/qfileinfo.cpp:599
#17 0x00007f8013b1caf7 in Nepomuk::StrigiService::indexFolder (this=0x1ee60e0, path=<value optimized out>, recursive=false, forced=false) at ../../../../nepomuk/services/strigi/strigiservice.cpp:253
#18 0x00007f8013b1ce33 in Nepomuk::StrigiService::updateFolder (this=0x1ee60e0, path=..., recursive=false, forced=false) at ../../../../nepomuk/services/strigi/strigiservice.cpp:232
#19 0x00007f8013b2e91d in StrigiAdaptor::qt_metacall (this=0x207ab10, _c=QMetaObject::InvokeMetaMethod, _id=15, _a=0x7fff6adbf9a0) at strigiadaptor.moc:157
#20 0x00007f802396a9fa in QDBusConnectionPrivate::deliverCall (this=0x1de1e60, object=0x207ab10, msg=..., metaTypes=..., slotIdx=19) at qdbusintegrator.cpp:942
#21 0x00007f802396bbb5 in QDBusConnectionPrivate::activateCall (this=0x1de1e60, object=0x207ab10, flags=337, msg=...) at qdbusintegrator.cpp:852
#22 0x00007f802396c33a in QDBusConnectionPrivate::activateObject (this=0x1de1e60, node=..., msg=..., pathStartPos=<value optimized out>) at qdbusintegrator.cpp:1410
#23 0x00007f802396c578 in QDBusActivateObjectEvent::placeMetaCall (this=0x209b600) at qdbusintegrator.cpp:1524
#24 0x00007f8023d3049a in QObject::event (this=0x1ee60e0, e=<value optimized out>) at kernel/qobject.cpp:1226
#25 0x00007f802206b9e4 in QApplicationPrivate::notify_helper (this=0x1d88300, receiver=0x1ee60e0, e=0x209b600) at kernel/qapplication.cpp:4462
#26 0x00007f80220703aa in QApplication::notify (this=<value optimized out>, receiver=0x1ee60e0, e=0x209b600) at kernel/qapplication.cpp:4341
#27 0x00007f802305a716 in KApplication::notify (this=0x7fff6adc07a0, receiver=0x1ee60e0, event=0x209b600) at ../../kdeui/kernel/kapplication.cpp:311
#28 0x00007f8023d1c49c in QCoreApplication::notifyInternal (this=0x7fff6adc07a0, receiver=0x1ee60e0, event=0x209b600) at kernel/qcoreapplication.cpp:731
#29 0x00007f8023d1fc25 in sendEvent (receiver=0x0, event_type=0, data=0x1d448a0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#30 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1d448a0) at kernel/qcoreapplication.cpp:1372
#31 0x00007f8023d47253 in sendPostedEvents (s=0x1d8c1c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#32 postEventSourceDispatch (s=0x1d8c1c0) at kernel/qeventdispatcher_glib.cpp:277
#33 0x00007f8020b24bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007f8020b253a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007f8020b25639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007f8023d473ef in QEventDispatcherGlib::processEvents (this=0x1d444a0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#37 0x00007f8022112dfe in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#38 0x00007f8023d1b882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#39 0x00007f8023d1babc in QEventLoop::exec (this=0x7fff6adc05b0, flags=...) at kernel/qeventloop.cpp:201
#40 0x00007f8023d1fecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#41 0x0000000000403c3f in main (argc=2, argv=<value optimized out>) at ../../../nepomuk/servicestub/main.cpp:165

This bug may be a duplicate of or related to bug 275504.

Possible duplicates by query: bug 275504, bug 275384, bug 275251, bug 274075, bug 274057.

Reported using DrKonqi