Bug 327966

Application: kded4 (4.11.3)
KDE Platform Version: 4.11.3
Qt Version: 4.8.5
Operating System: Linux 3.11.8-300.fc20.x86_64 x86_64
Distribution (Platform): Fedora RPMs

-- Information about the crash:
I installed debuginfo for various "packages" but the gdb trace didn't pick up the references. Here's the stack trace I got:

gdb kded core.1425 
GNU gdb (GDB) Fedora 7.6.50.20130731-16.fc20
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..
Reading symbols from /usr/bin/kded...Reading symbols from /usr/lib/debug/usr/bin/kded.debug...done.
done.

warning: core file may not match specified executable file.
[New LWP 1425]
[New LWP 1429]
[New LWP 1431]
[New LWP 1434]
Cannot access memory at address 0x50
Cannot access memory at address 0x48
(gdb) where
#0  0x00007fbd51ff24f0 in ?? ()
#1  0x00007fbd51fee6c2 in ?? ()
#2  0x00007fff6896e290 in ?? ()
#3  0x0000000000000001 in ?? ()
#4  0x00007fff6896e2b0 in ?? ()
#5  0x0000003f9060e756 in ?? ()
#6  0x00000000021c1530 in ?? ()
#7  0x00007fff6896e300 in ?? ()
#8  0x00007fff6896e340 in ?? ()
#9  0x0000000002239c80 in ?? ()
#10 0x0000000002238470 in ?? ()
#11 0x0000000000000000 in ?? ()

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Daemon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f1d7d71c8c0 (LWP 1379))]

Thread 3 (Thread 0x7f1d6d411700 (LWP 1397)):
#0  0x0000003b90eeaa8d in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x0000003b936495b4 in g_main_context_poll (priority=2147483647, n_fds=1, fds=0x7f1d640010c0, timeout=-1, context=0x164a5a0) at gmain.c:4007
#2  g_main_context_iterate (context=0x164a5a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3708
#3  0x0000003b93649a3a in g_main_loop_run (loop=0x164a530) at gmain.c:3907
#4  0x0000003b986d0376 in gdbus_shared_thread_func (user_data=0x164a570) at gdbusprivate.c:278
#5  0x0000003b9366ea45 in g_thread_proxy (data=0x165b850) at gthread.c:798
#6  0x0000003b91607f33 in start_thread (arg=0x7f1d6d411700) at pthread_create.c:309
#7  0x0000003b90ef4ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f1d6ca04700 (LWP 1403)):
#0  0x0000003b9368a2ea in g_mutex_get_impl (mutex=0x7f1d580009a0) at gthread-posix.c:124
#1  0x0000003b9368a5c9 in g_mutex_unlock (mutex=mutex@entry=0x7f1d580009a0) at gthread-posix.c:232
#2  0x0000003b93648be0 in g_main_context_prepare (context=context@entry=0x7f1d580009a0, priority=priority@entry=0x7f1d6ca03b80) at gmain.c:3338
#3  0x0000003b936494bb in g_main_context_iterate (context=context@entry=0x7f1d580009a0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3693
#4  0x0000003b936496dc in g_main_context_iteration (context=0x7f1d580009a0, may_block=1) at gmain.c:3774
#5  0x0000003b9ebb31a6 in QEventDispatcherGlib::processEvents (this=0x7f1d580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#6  0x0000003b9eb8312f in QEventLoop::processEvents (this=this@entry=0x7f1d6ca03cc0, flags=...) at kernel/qeventloop.cpp:149
#7  0x0000003b9eb8347d in QEventLoop::exec (this=this@entry=0x7f1d6ca03cc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x0000003b9ea79bdf in QThread::exec (this=this@entry=0x16800a0) at thread/qthread.cpp:536
#9  0x0000003b9eb63a93 in QInotifyFileSystemWatcherEngine::run (this=0x16800a0) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x0000003b9ea7c3df in QThreadPrivate::start (arg=0x16800a0) at thread/qthread_unix.cpp:338
#11 0x0000003b91607f33 in start_thread (arg=0x7f1d6ca04700) at pthread_create.c:309
#12 0x0000003b90ef4ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f1d7d71c8c0 (LWP 1379)):
[KCrash Handler]
#6  XRandRMode::size (this=0x0) at /usr/src/debug/libkscreen-1.0.1/backends/xrandr/xrandrmode.cpp:53
#7  0x00007f1d6f6ee6c2 in XRandRConfig::applyKScreenConfig (this=0x15d1920, config=<optimized out>) at /usr/src/debug/libkscreen-1.0.1/backends/xrandr/xrandrconfig.cpp:168
#8  0x00007f1d6fb23f7f in KScreen::Config::setConfig (config=0x150a8c0) at /usr/src/debug/libkscreen-1.0.1/src/config.cpp:66
#9  0x00007f1d6fd354ff in KScreenDaemon::applyIdealConfig (this=this@entry=0x15cedb0) at /usr/src/debug/kscreen-1.0.1/kded/daemon.cpp:118
#10 0x00007f1d6fd3577e in KScreenDaemon::applyConfig (this=0x15cedb0) at /usr/src/debug/kscreen-1.0.1/kded/daemon.cpp:98
#11 0x0000003b9eb98fa8 in QMetaObject::activate (sender=0x15de180, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#12 0x0000003b9eb98fa8 in QMetaObject::activate (sender=sender@entry=0x15d7b50, m=m@entry=0x7f1d6ff44ae0 <Device::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3547
#13 0x00007f1d6fd3e6e4 in ready (this=0x15d7b50) at /usr/src/debug/kscreen-1.0.1/x86_64-redhat-linux-gnu/kded/device.moc:112
#14 Device::setReady (this=this@entry=0x15d7b50) at /usr/src/debug/kscreen-1.0.1/kded/device.cpp:80
#15 0x00007f1d6fd3f336 in setReady (this=0x15d7b50) at /usr/src/debug/kscreen-1.0.1/kded/device.cpp:75
#16 Device::isLaptopFetched (this=0x15d7b50, watcher=0x1642a70) at /usr/src/debug/kscreen-1.0.1/kded/device.cpp:122
#17 0x0000003b9eb98fa8 in QMetaObject::activate (sender=0x1642a70, m=m@entry=0x3ba007c5e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff387800b0) at kernel/qobject.cpp:3547
#18 0x0000003b9fe5d66f in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=0x1642a70) at .moc/release-shared/moc_qdbuspendingcall.cpp:105
#19 0x0000003b9eb9d53e in QObject::event (this=0x1642a70, e=<optimized out>) at kernel/qobject.cpp:1194
#20 0x0000003ba73c9dac in QApplicationPrivate::notify_helper (this=this@entry=0x13df020, receiver=receiver@entry=0x1642a70, e=e@entry=0x167e910) at kernel/qapplication.cpp:4562
#21 0x0000003ba73d0745 in QApplication::notify (this=this@entry=0x7fff387815a0, receiver=receiver@entry=0x1642a70, e=e@entry=0x167e910) at kernel/qapplication.cpp:4348
#22 0x0000003ba444a99a in KApplication::notify (this=0x7fff387815a0, receiver=0x1642a70, event=0x167e910) at /usr/src/debug/kdelibs-4.11.3/kdeui/kernel/kapplication.cpp:311
#23 0x0000003b9eb845ed in QCoreApplication::notifyInternal (this=0x7fff387815a0, receiver=receiver@entry=0x1642a70, event=event@entry=0x167e910) at kernel/qcoreapplication.cpp:949
#24 0x0000003b9eb876e7 in sendEvent (event=0x167e910, receiver=0x1642a70) at kernel/qcoreapplication.h:231
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x13a9520) at kernel/qcoreapplication.cpp:1573
#26 0x0000003b9eb87b93 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#27 0x0000003b9ebb3903 in sendPostedEvents () at kernel/qcoreapplication.h:236
#28 postEventSourceDispatch (s=s@entry=0x13df410) at kernel/qeventdispatcher_glib.cpp:280
#29 0x0000003b936492a6 in g_main_dispatch (context=0x13df320) at gmain.c:3066
#30 g_main_context_dispatch (context=context@entry=0x13df320) at gmain.c:3642
#31 0x0000003b93649628 in g_main_context_iterate (context=context@entry=0x13df320, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#32 0x0000003b936496dc in g_main_context_iteration (context=0x13df320, may_block=1) at gmain.c:3774
#33 0x0000003b9ebb3185 in QEventDispatcherGlib::processEvents (this=0x13aae80, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#34 0x0000003ba746bd66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#35 0x0000003b9eb8312f in QEventLoop::processEvents (this=this@entry=0x7fff38780890, flags=...) at kernel/qeventloop.cpp:149
#36 0x0000003b9eb8347d in QEventLoop::exec (this=this@entry=0x7fff38780890, flags=...) at kernel/qeventloop.cpp:204
#37 0x00007f1d6ca0bdcc in KAuth::DBusHelperProxy::executeAction (this=0x1628f90, action=..., helperID=..., arguments=...) at /usr/src/debug/kdelibs-4.11.3/kdecore/auth/backends/dbus/DBusHelperProxy.cpp:118
#38 0x0000003ba1f6727d in KAuth::Action::execute (this=this@entry=0x7fff38780ae0, helperID=...) at /usr/src/debug/kdelibs-4.11.3/kdecore/auth/kauthaction.cpp:365
#39 0x0000003ba1f67443 in KAuth::Action::execute (this=this@entry=0x7fff38780ae0) at /usr/src/debug/kdelibs-4.11.3/kdecore/auth/kauthaction.cpp:301
#40 0x00007f1d718d5110 in PowerDevilUPowerBackend::init (this=0x159ffe0) at /usr/src/debug/kde-workspace-4.11.3/powerdevil/daemon/backends/upower/powerdevilupowerbackend.cpp:148
#41 0x00007f1d71697944 in PowerDevil::Core::loadCore (this=0x15f8240, backend=backend@entry=0x159ffe0) at /usr/src/debug/kde-workspace-4.11.3/powerdevil/daemon/powerdevilcore.cpp:85
#42 0x00007f1d718cddf9 in KDEDPowerDevil::init (this=0x13d8d20) at /usr/src/debug/kde-workspace-4.11.3/powerdevil/daemon/kdedpowerdevil.cpp:89
#43 0x0000003b9eb9d53e in QObject::event (this=0x13d8d20, e=<optimized out>) at kernel/qobject.cpp:1194
#44 0x0000003ba73c9dac in QApplicationPrivate::notify_helper (this=this@entry=0x13df020, receiver=receiver@entry=0x13d8d20, e=e@entry=0x13d9110) at kernel/qapplication.cpp:4562
#45 0x0000003ba73d0745 in QApplication::notify (this=this@entry=0x7fff387815a0, receiver=receiver@entry=0x13d8d20, e=e@entry=0x13d9110) at kernel/qapplication.cpp:4348
#46 0x0000003ba444a99a in KApplication::notify (this=0x7fff387815a0, receiver=0x13d8d20, event=0x13d9110) at /usr/src/debug/kdelibs-4.11.3/kdeui/kernel/kapplication.cpp:311
#47 0x0000003b9eb845ed in QCoreApplication::notifyInternal (this=0x7fff387815a0, receiver=receiver@entry=0x13d8d20, event=event@entry=0x13d9110) at kernel/qcoreapplication.cpp:949
#48 0x0000003b9eb876e7 in sendEvent (event=0x13d9110, receiver=0x13d8d20) at kernel/qcoreapplication.h:231
#49 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x13a9520) at kernel/qcoreapplication.cpp:1573
#50 0x0000003b9eb87b93 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1466
#51 0x0000003b9ebb3903 in sendPostedEvents () at kernel/qcoreapplication.h:236
#52 postEventSourceDispatch (s=s@entry=0x13df410) at kernel/qeventdispatcher_glib.cpp:280
#53 0x0000003b936492a6 in g_main_dispatch (context=0x13df320) at gmain.c:3066
#54 g_main_context_dispatch (context=context@entry=0x13df320) at gmain.c:3642
#55 0x0000003b93649628 in g_main_context_iterate (context=context@entry=0x13df320, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3713
#56 0x0000003b936496dc in g_main_context_iteration (context=0x13df320, may_block=1) at gmain.c:3774
#57 0x0000003b9ebb3185 in QEventDispatcherGlib::processEvents (this=0x13aae80, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#58 0x0000003ba746bd66 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:207
#59 0x0000003b9eb8312f in QEventLoop::processEvents (this=this@entry=0x7fff38781460, flags=...) at kernel/qeventloop.cpp:149
#60 0x0000003b9eb8347d in QEventLoop::exec (this=this@entry=0x7fff38781460, flags=...) at kernel/qeventloop.cpp:204
#61 0x0000003b9eb889bb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#62 0x0000003ba73c841c in QApplication::exec () at kernel/qapplication.cpp:3823
#63 0x0000003b9660af2b in kdemain (argc=1, argv=0x7fff387816e8) at /usr/src/debug/kdelibs-4.11.3/kded/kded.cpp:925
#64 0x0000003b90e21d65 in __libc_start_main (main=0x4007e0 <main(int, char**)>, argc=1, argv=0x7fff387816e8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff387816d8) at libc-start.c:285
#65 0x0000000000400811 in _start ()

Possible duplicates by query: bug 327458.

Reported using DrKonqi