Bug 316978

Summary:	Akonadi Nepomuk Feeder crashed after sending reconfigure dbus signal
Product:	[Frameworks and Libraries] Akonadi	Reporter:	Dennis Schridde <heri+kde>
Component:	Nepomuk Feeder Agents	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED FIXED
Severity:	crash	CC:	me, vkrause
Priority:	NOR
Version:	4.10
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Dennis Schridde 2013-03-18 16:08:39 UTC

Application: akonadi_nepomuk_feeder (4.10)
KDE Platform Version: 4.10.1
Qt Version: 4.8.4
Operating System: Linux 3.8.3-gentoo x86_64
Distribution: "Gentoo Base System release 2.2"

-- Information about the crash:
- What I was doing when the application crashed:
I sent the reconfigure dbus signal (and some others, but that was the last one) a few times to the Akonadi Nepomuk Feeder, which made it crash.

-- Backtrace:
Application: Nepomuk-Modul für Akonadi (akonadi_nepomuk_feeder), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  data (this=0x8) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at ../../include/QtCore/../../src/corelib/global/qglobal.h:2455
#8  d_func (this=0x0) at io/qsettings.h:83
#9  QSettings::setValue (this=0x0, key=..., value=...) at io/qsettings.cpp:3274
#10 0x0000003681e8af76 in Akonadi::AgentBase::setOnline (this=0x1f14b00, state=true) at /var/tmp/portage/kde-base/kdepimlibs-4.10.1/work/kdepimlibs-4.10.1/akonadi/agentbase.cpp:645
#11 0x000000000040e7fd in Akonadi::NepomukFeederAgent::selfTest (this=0x1f14b00) at /var/tmp/portage/kde-base/kdepim-runtime-4.10.1/work/kdepim-runtime-4.10.1/agents/nepomukfeeder/nepomukfeederagent.cpp:439
#12 0x0000003f3a987e6f in QMetaObject::activate (sender=0x1f14b00, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#13 0x0000003681fc6b5b in Akonadi__ControlAdaptor::qt_metacall (this=0x1f19080, _c=QMetaObject::InvokeMetaMethod, _id=<optimized out>, _a=0x7fff6eeffcd0) at /var/tmp/portage/kde-base/kdepimlibs-4.10.1/work/kdepimlibs-4.10.1_build/akonadi/controladaptor.moc:120
#14 0x0000003f3c822da3 in ?? () from /usr/lib64/qt4/libQtDBus.so.4
#15 0x0000003f3c823e4d in ?? () from /usr/lib64/qt4/libQtDBus.so.4
#16 0x0000003f3c8247c5 in ?? () from /usr/lib64/qt4/libQtDBus.so.4
#17 0x0000003f3c8248bb in ?? () from /usr/lib64/qt4/libQtDBus.so.4
#18 0x0000003f3a987386 in QObject::event (this=0x1f14b00, e=<optimized out>) at kernel/qobject.cpp:1194
#19 0x0000003ae6dcb66c in QApplicationPrivate::notify_helper (this=this@entry=0x1d4dc70, receiver=receiver@entry=0x1f14b00, e=e@entry=0x60737f0) at kernel/qapplication.cpp:4562
#20 0x0000003ae6dcfa2a in QApplication::notify (this=0x7fff6ef008e0, receiver=0x1f14b00, e=0x60737f0) at kernel/qapplication.cpp:4423
#21 0x000000367fe423b6 in KApplication::notify (this=0x7fff6ef008e0, receiver=0x1f14b00, event=0x60737f0) at /var/tmp/portage/kde-base/kdelibs-4.10.1/work/kdelibs-4.10.1/kdeui/kernel/kapplication.cpp:311
#22 0x0000003f3a972f4d in QCoreApplication::notifyInternal (this=0x7fff6ef008e0, receiver=receiver@entry=0x1f14b00, event=event@entry=0x60737f0) at kernel/qcoreapplication.cpp:946
#23 0x0000003f3a9767e0 in sendEvent (event=0x60737f0, receiver=0x1f14b00) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1d2ce80) at kernel/qcoreapplication.cpp:1570
#25 0x0000003f3a9a0673 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#26 postEventSourceDispatch (s=0x1d4e730) at kernel/qeventdispatcher_glib.cpp:279
#27 0x000000381b646e1c in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#28 0x000000381b647174 in ?? () from /usr/lib64/libglib-2.0.so.0
#29 0x000000381b647224 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#30 0x0000003f3a9a07f4 in QEventDispatcherGlib::processEvents (this=0x1d2e7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#31 0x0000003ae6e6944e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x0000003f3a971cdf in QEventLoop::processEvents (this=this@entry=0x7fff6ef00860, flags=...) at kernel/qeventloop.cpp:149
#33 0x0000003f3a971f60 in QEventLoop::exec (this=0x7fff6ef00860, flags=...) at kernel/qeventloop.cpp:204
#34 0x0000003f3a976ac8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#35 0x0000003681e890e3 in Akonadi::AgentBase::init (r=0x1f14b00) at /var/tmp/portage/kde-base/kdepimlibs-4.10.1/work/kdepimlibs-4.10.1/akonadi/agentbase.cpp:584
#36 0x0000000000413903 in Akonadi::AgentBase::init<Akonadi::NepomukFeederAgent> (argc=<optimized out>, argv=<optimized out>) at /usr/include/akonadi/agentbase.h:343
#37 0x00000030220216f5 in __libc_start_main () from /lib64/libc.so.6
#38 0x000000000040c235 in _start ()

Reported using DrKonqi

Comment 1 Vishesh Handa 2013-08-17 11:31:14 UTC

Could you please check if this still occurs with KDE 4.11?

Comment 2 Dennis Schridde 2013-10-19 21:30:03 UTC

Seems to be fixed in 4.11.2:

$ ps aux | grep feeder
USER  3101  0.3  0.7 497912 44380 ?        Sl   21:17   0:28 /usr/bin/akonadi_nepomuk_feeder --identifier akonadi_nepomuk_feeder

$ qdbus org.kde.akonadi_nepomuk_feeder-3101 / org.freedesktop.Akonadi.Agent.Control.reconfigure

$ ps aux | grep feeder
USER  3101  0.4  0.7 498104 45696 ?        Sl   21:17   0:36 /usr/bin/akonadi_nepomuk_feeder --identifier akonadi_nepomuk_feeder