Application: apper (0.7.2)
KDE Platform Version: 4.8.3 (4.8.3)
Qt Version: 4.8.2
Operating System: Linux 3.4.0-1.fc17.x86_64 x86_64
Distribution (Platform): Fedora RPMs

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

After completing the most recent update, apper just sits their with the spinning "wait" icon indefinitely.

The "Notifications" applet shows a spinning job which is completely blank. This also persists indefinitely.

This occurs on both my home machine (which is a Fedora 17 install with various additional repositories), and my work machine (which is a plain Fedora 17 install with no additional repositories).

This did not occur after the initial installation and first few updates of Fedora 17, but it happens now, every time.

PS: I was required to download 1G (4.7G unpacked) of debuginfo packages before the crash reporting assistant would listen to my bug report. I typically resist using the word "insane," but it does seem to apply in this case.

The crash can be reproduced every time.

-- Backtrace:
Application: Apper (apper), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[KCrash Handler]
#6  0x0000003a9501d174 in QStackedWidget::setCurrentIndex (this=0x1808600, index=0) at widgets/qstackedwidget.cpp:258
#7  0x00007f804e1991ce in ApperKCM::on_backTB_clicked (this=0x1706580) at /usr/src/debug/apper-0.7.2/ApperKCM/ApperKCM.cpp:540
#8  0x00007f804e19abd7 in ApperKCM::qt_metacall (this=0x1706580, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0x7fff753eac50) at /usr/src/debug/apper-0.7.2/x86_64-redhat-linux-gnu/ApperKCM/ApperKCM.moc:142
#9  0x0000003a91f8cd63 in QMetaObject::activate (sender=0x180d1d0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff753eac50) at kernel/qobject.cpp:3566
#10 0x0000003a9522ece2 in QAbstractButton::clicked (this=<optimized out>, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:219
#11 0x0000003a94f82fde in QAbstractButtonPrivate::emitClicked (this=this@entry=0x181d450) at widgets/qabstractbutton.cpp:548
#12 0x0000003a94f835e0 in QAbstractButtonPrivate::click (this=this@entry=0x181d450) at widgets/qabstractbutton.cpp:541
#13 0x0000003a94f8384c in QAbstractButton::mouseReleaseEvent (this=0x180d1d0, e=0x7fff753eb500) at widgets/qabstractbutton.cpp:1123
#14 0x0000003a9503d80a in QToolButton::mouseReleaseEvent (this=<optimized out>, e=<optimized out>) at widgets/qtoolbutton.cpp:718
#15 0x0000003a94c19b50 in QWidget::event (this=0x180d1d0, event=0x7fff753eb500) at kernel/qwidget.cpp:8371
#16 0x0000003a94bca37c in QApplicationPrivate::notify_helper (this=this@entry=0x1558390, receiver=receiver@entry=0x180d1d0, e=e@entry=0x7fff753eb500) at kernel/qapplication.cpp:4551
#17 0x0000003a94bcf05b in QApplication::notify (this=<optimized out>, receiver=0x180d1d0, e=0x7fff753eb500) at kernel/qapplication.cpp:4094
#18 0x0000003a97645a56 in KApplication::notify (this=0x7fff753ec270, receiver=0x180d1d0, event=0x7fff753eb500) at /usr/src/debug/kdelibs-4.8.3/kdeui/kernel/kapplication.cpp:311
#19 0x0000003a91f763ee in QCoreApplication::notifyInternal (this=0x7fff753ec270, receiver=0x180d1d0, event=0x7fff753eb500) at kernel/qcoreapplication.cpp:915
#20 0x0000003a94bcb1bb in sendEvent (event=<optimized out>, receiver=<optimized out>) at ../../src/corelib/kernel/qcoreapplication.h:231
#21 QApplicationPrivate::sendMouseEvent (receiver=0x180d1d0, event=0x7fff753eb500, alienWidget=0x0, nativeWidget=0x180d1d0, buttonDown=0x3a9569dd68, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:3162
#22 0x0000003a94c45894 in QETWidget::translateMouseEvent (this=this@entry=0x180d1d0, event=event@entry=0x7fff753ebc70) at kernel/qapplication_x11.cpp:4523
#23 0x0000003a94c44621 in QApplication::x11ProcessEvent (this=0x7fff753ec270, event=0x7fff753ebc70) at kernel/qapplication_x11.cpp:3646
#24 0x0000003a94c6a60c in x11EventSourceDispatch (s=s@entry=0x1556960, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#25 0x0000003a866476e5 in g_main_dispatch (context=0x1556800) at gmain.c:2539
#26 g_main_context_dispatch (context=context@entry=0x1556800) at gmain.c:3075
#27 0x0000003a86647a18 in g_main_context_iterate (context=context@entry=0x1556800, block=block@entry=1, dispatch=dispatch@entry=1, self=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at gmain.c:3146
#28 0x0000003a86647ad4 in g_main_context_iteration (context=0x1556800, may_block=1) at gmain.c:3207
#29 0x0000003a91fa44e6 in QEventDispatcherGlib::processEvents (this=0x152d990, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#30 0x0000003a94c6a2ee in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#31 0x0000003a91f7513f in QEventLoop::processEvents (this=this@entry=0x7fff753ec040, flags=...) at kernel/qeventloop.cpp:149
#32 0x0000003a91f753c8 in QEventLoop::exec (this=0x7fff753ec040, flags=...) at kernel/qeventloop.cpp:204
#33 0x0000003a91f7a1b8 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#34 0x00000000004064ef in main (argc=2, argv=0x7fff753ec3b8) at /usr/src/debug/apper-0.7.2/Apper/main.cpp:136

Possible duplicates by query: bug 294203, bug 289899, bug 289712, bug 289689, bug 286403.

Reported using DrKonqi