Bug 279324

Application: nepomukservicestub (0.2)
KDE Platform Version: 4.7.00 (4.7.0)
Qt Version: 4.7.3
Operating System: Linux 3.0.0-2-desktop x86_64
Distribution: "openSUSE 12.1 Milestone 3 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed: I frequently twice to 3 times per session this type of crash. Mainly the nepomuk storage agent seem the culprit.
Most of the time I only get nepomuk agent segfault and no backtrace. 
Any ideas what can be the cause?

The crash can be reproduced some of the time.

-- Backtrace:
Application: Jeton du service Nepomuk (nepomukservicestub), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f5b573e9760 (LWP 6648))]

Thread 2 (Thread 0x7f5b4796f700 (LWP 6672)):
#0  0x00007f5b54885813 in __poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f5b53cdeee8 in g_main_context_poll (n_fds=2, fds=0x86b630, timeout=-1, context=0x871f90, priority=<optimized out>) at gmain.c:3474
#2  g_main_context_iterate (context=0x871f90, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3156
#3  0x00007f5b53cdf3a9 in g_main_context_iteration (context=0x871f90, may_block=1) at gmain.c:3224
#4  0x00007f5b56f21ef6 in QEventDispatcherGlib::processEvents (this=0x73a680, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f5b56ef6452 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f5b56ef664f in QEventLoop::exec (this=0x7f5b4796ee20, flags=...) at kernel/qeventloop.cpp:201
#7  0x00007f5b56e0e0df in QThread::exec (this=<optimized out>) at thread/qthread.cpp:492
#8  0x00007f5b56e10b25 in QThreadPrivate::start (arg=0x82e570) at thread/qthread_unix.cpp:320
#9  0x00007f5b56b80e55 in start_thread (arg=0x7f5b4796f700) at pthread_create.c:301
#10 0x00007f5b5488e86d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f5b573e9760 (LWP 6648)):
[KCrash Handler]
#6  0x00007f5b56e51dd1 in QString::operator== (this=<optimized out>, other=<optimized out>) at tools/qstring.cpp:2158
#7  0x00007f5b565525dc in operator!= (s=..., this=0x7fff10607120) at /usr/include/QtCore/qstring.h:420
#8  isLocalFile (url=...) at /usr/src/debug/kdelibs-4.7.0/kdecore/io/kurl.cpp:890
#9  0x00007f5b5655397f in KUrl::toLocalFile (this=0x870f40, trailing=KUrl::LeaveTrailingSlash) at /usr/src/debug/kdelibs-4.7.0/kdecore/io/kurl.cpp:879
#10 0x00007f5b482d2f42 in Nepomuk::IndexScheduler::currentFile (this=<optimized out>) at /usr/src/debug/kde-runtime-4.7.0/nepomuk/services/strigi/indexscheduler.cpp:308
#11 0x00007f5b482d1499 in Nepomuk::StrigiService::userStatusString (this=0x856d10, simple=false) at /usr/src/debug/kde-runtime-4.7.0/nepomuk/services/strigi/strigiservice.cpp:166
#12 0x00007f5b482d164b in Nepomuk::StrigiService::userStatusString (this=<optimized out>) at /usr/src/debug/kde-runtime-4.7.0/nepomuk/services/strigi/strigiservice.cpp:142
#13 0x00007f5b482dc3d1 in StrigiAdaptor::userStatusString (this=<optimized out>) at /usr/src/debug/kde-runtime-4.7.0/build/nepomuk/services/strigi/strigiadaptor.cpp:99
#14 0x00007f5b482dc4cb in StrigiAdaptor::qt_metacall (this=0x8f0050, _c=QMetaObject::InvokeMetaMethod, _id=14, _a=0x7fff106076f0) at /usr/src/debug/kde-runtime-4.7.0/build/nepomuk/services/strigi/strigiadaptor.moc:143
#15 0x00007f5b5692286b in QDBusConnectionPrivate::deliverCall (this=0x7131b0, object=0x8f0050, msg=..., metaTypes=..., slotIdx=18) at qdbusintegrator.cpp:941
#16 0x00007f5b56923a3d in QDBusConnectionPrivate::activateCall (this=0x7131b0, object=0x8f0050, flags=337, msg=...) at qdbusintegrator.cpp:851
#17 0x00007f5b56924312 in QDBusConnectionPrivate::activateObject (this=0x7131b0, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1409
#18 0x00007f5b569243e8 in QDBusActivateObjectEvent::placeMetaCall (this=0x902310) at qdbusintegrator.cpp:1523
#19 0x00007f5b56f0da8a in QObject::event (this=0x856d10, e=<optimized out>) at kernel/qobject.cpp:1217
#20 0x00007f5b550179e4 in notify_helper (e=0x902310, receiver=0x856d10, this=0x62cb40) at kernel/qapplication.cpp:4462
#21 QApplicationPrivate::notify_helper (this=0x62cb40, receiver=0x856d10, e=0x902310) at kernel/qapplication.cpp:4434
#22 0x00007f5b5501c871 in QApplication::notify (this=0x7fff10608490, receiver=0x856d10, e=0x902310) at kernel/qapplication.cpp:4341
#23 0x00007f5b55ff49f6 in KApplication::notify (this=0x7fff10608490, receiver=0x856d10, event=0x902310) at /usr/src/debug/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#24 0x00007f5b56ef724c in QCoreApplication::notifyInternal (this=0x7fff10608490, receiver=0x856d10, event=0x902310) at kernel/qcoreapplication.cpp:731
#25 0x00007f5b56efa628 in sendEvent (event=0x902310, receiver=0x856d10) at kernel/qcoreapplication.h:215
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x60ef10) at kernel/qcoreapplication.cpp:1372
#27 0x00007f5b56f21a33 in sendPostedEvents () at kernel/qcoreapplication.h:220
#28 postEventSourceDispatch (s=<optimized out>) at kernel/qeventdispatcher_glib.cpp:277
#29 0x00007f5b53cde9dd in g_main_dispatch (context=0x62f400) at gmain.c:2500
#30 g_main_context_dispatch (context=0x62f400) at gmain.c:3083
#31 0x00007f5b53cdf1d8 in g_main_context_iterate (context=0x62f400, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3161
#32 0x00007f5b53cdf3a9 in g_main_context_iteration (context=0x62f400, may_block=1) at gmain.c:3224
#33 0x00007f5b56f21e8f in QEventDispatcherGlib::processEvents (this=0x60eb10, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#34 0x00007f5b550ba61e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007f5b56ef6452 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007f5b56ef664f in QEventLoop::exec (this=0x7fff10608300, flags=...) at kernel/qeventloop.cpp:201
#37 0x00007f5b56efa817 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#38 0x0000000000403d59 in main (argc=2, argv=0x7fff10608938) at /usr/src/debug/kde-runtime-4.7.0/nepomuk/servicestub/main.cpp:167

Reported using DrKonqi