Bug 329936

Application: kded4 (4.12.0)
KDE Platform Version: 4.12.0
Qt Version: 4.8.5
Operating System: Linux 3.11.6-4-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

-- Information about the crash:
KDE telepathy crashed with opening the contactlist and connecting to accounts.  Once online no contacts were displayed.

The crash can be reproduced sometimes.

-- Backtrace:
Application: KDE Dæmon (kded4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fcd3cc4f780 (LWP 2904))]

Thread 7 (Thread 0x7fcd14a53700 (LWP 2925)):
#0  0x00007fcd3b519530 in __pthread_mutex_unlock_usercnt () from /lib64/libpthread.so.0
#1  0x00007fcd371c72c1 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd37187048 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3718759b in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fccec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#6  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd14a52e20, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd14a52e20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcd3b7aafef in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#9  0x00007fcd21d4f297 in KCupsConnection::run() () from /usr/lib64/libkcupslib.so
#10 0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x187d450) at thread/qthread_unix.cpp:338
#11 0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#12 0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fcd03fff700 (LWP 2926)):
#0  0x00007fcd3b519595 in __pthread_mutex_unlock_usercnt () from /lib64/libpthread.so.0
#1  0x00007fcd371c72c1 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd371875f9 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fcce80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#5  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd03ffee60, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd03ffee60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fcd3b7aafef in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#8  0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x16bd540) at thread/qthread_unix.cpp:338
#9  0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#10 0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fcd037fe700 (LWP 2928)):
#0  0x00007fcd37186c8b in g_main_context_prepare () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fcd37187523 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fcce00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#4  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd037fde20, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd037fde20, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcd3b7aafef in QThread::exec (this=this@entry=0x18dfed0) at thread/qthread.cpp:536
#7  0x00007fcd3b88d513 in QInotifyFileSystemWatcherEngine::run (this=0x18dfed0) at io/qfilesystemwatcher_inotify.cpp:256
#8  0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x18dfed0) at thread/qthread_unix.cpp:338
#9  0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#10 0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fcd167fc700 (LWP 3364)):
#0  0x00007fcd3b51cb7d in read () from /lib64/libpthread.so.0
#1  0x00007fcd371c65c0 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd3718712c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3718759b in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fccf8003550, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#6  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd167fbe20, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd167fbe20, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcd3b7aafef in QThread::exec (this=this@entry=0x1adce90) at thread/qthread.cpp:536
#9  0x00007fcd3b88d513 in QInotifyFileSystemWatcherEngine::run (this=0x1adce90) at io/qfilesystemwatcher_inotify.cpp:256
#10 0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x1adce90) at thread/qthread_unix.cpp:338
#11 0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#12 0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fcd15ffb700 (LWP 3442)):
#0  0x00007fcd3a276b3d in poll () from /lib64/libc.so.6
#1  0x00007fcd37187604 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fccfc003670, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#4  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd15ffae60, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd15ffae60, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fcd3b7aafef in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#7  0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x1c2f000) at thread/qthread_unix.cpp:338
#8  0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#9  0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fcd17fff700 (LWP 3481)):
#0  0x00007fcd371c6ffa in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007fcd371c7289 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fcd3718708c in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fcd3718759b in ?? () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#5  0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x7fcd18002a10, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#6  0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fcd17ffee60, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fcd17ffee60, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fcd3b7aafef in QThread::exec (this=<optimized out>) at thread/qthread.cpp:536
#9  0x00007fcd3b7ad68f in QThreadPrivate::start (arg=0x190f910) at thread/qthread_unix.cpp:338
#10 0x00007fcd3b5160db in start_thread () from /lib64/libpthread.so.0
#11 0x00007fcd3a27f90d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fcd3cc4f780 (LWP 2904)):
[KCrash Handler]
#6  Device::reloadPlugins (this=this@entry=0x1ca5370) at /usr/src/debug/kdeconnect-kde-0.4.2/kded/device.cpp:114
#7  0x00007fcd2005c944 in Device::addLink (this=0x1ca5370, identityPackage=..., link=link@entry=0x2006b60) at /usr/src/debug/kdeconnect-kde-0.4.2/kded/device.cpp:224
#8  0x00007fcd20057085 in Daemon::onNewDeviceLink (this=0x1c90920, identityPackage=..., dl=0x2006b60) at /usr/src/debug/kdeconnect-kde-0.4.2/kded/daemon.cpp:152
#9  0x00007fcd2004b7c8 in Daemon::qt_static_metacall (_o=0x0, _id=1, _a=0x1c01410, _c=<optimized out>) at /usr/src/debug/kdeconnect-kde-0.4.2/build/kded/moc_daemon.cpp:79
#10 0x00007fcd3b8c0d68 in QMetaObject::activate (sender=sender@entry=0x1b37d10, m=m@entry=0x7fcd20265aa0 <LinkProvider::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff7b3fa670) at kernel/qobject.cpp:3556
#11 0x00007fcd2004b604 in LinkProvider::onConnectionReceived (this=this@entry=0x1b37d10, _t1=..., _t2=_t2@entry=0x2006b60) at /usr/src/debug/kdeconnect-kde-0.4.2/build/kded/moc_linkprovider.cpp:108
#12 0x00007fcd2004ee1d in LanLinkProvider::connected (this=0x1b37d10) at /usr/src/debug/kdeconnect-kde-0.4.2/kded/backends/lan/lanlinkprovider.cpp:187
#13 0x00007fcd3b8c0d68 in QMetaObject::activate (sender=sender@entry=0x244aaf0, m=m@entry=0x7fcd39835c80 <QAbstractSocket::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x0) at kernel/qobject.cpp:3556
#14 0x00007fcd395b9e33 in QAbstractSocket::connected (this=this@entry=0x244aaf0) at .moc/release-shared/moc_qabstractsocket.cpp:226
#15 0x00007fcd395b9f9f in QAbstractSocketPrivate::fetchConnectionParameters (this=this@entry=0x240c580) at socket/qabstractsocket.cpp:1205
#16 0x00007fcd395c0d18 in QAbstractSocketPrivate::_q_testConnection (this=0x240c580) at socket/qabstractsocket.cpp:1064
#17 0x00007fcd395c8545 in QWriteNotifier::event (this=0x1d20190, e=<optimized out>) at socket/qnativesocketengine.cpp:1181
#18 0x00007fcd3aa2c8ac in QApplicationPrivate::notify_helper (this=this@entry=0x16be1b0, receiver=receiver@entry=0x1d20190, e=e@entry=0x7fff7b3fabc0) at kernel/qapplication.cpp:4562
#19 0x00007fcd3aa32e70 in QApplication::notify (this=this@entry=0x7fff7b3faf40, receiver=receiver@entry=0x1d20190, e=e@entry=0x7fff7b3fabc0) at kernel/qapplication.cpp:4348
#20 0x00007fcd3c65338a in KApplication::notify (this=0x7fff7b3faf40, receiver=0x1d20190, event=0x7fff7b3fabc0) at /usr/src/debug/kdelibs-4.12.0/kdeui/kernel/kapplication.cpp:311
#21 0x00007fcd3b8ad0ad in QCoreApplication::notifyInternal (this=0x7fff7b3faf40, receiver=0x1d20190, event=event@entry=0x7fff7b3fabc0) at kernel/qcoreapplication.cpp:949
#22 0x00007fcd3b8da9b0 in sendEvent (event=0x7fff7b3fabc0, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#23 socketNotifierSourceDispatch (source=0x16be550) at kernel/qeventdispatcher_glib.cpp:110
#24 0x00007fcd37187316 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#25 0x00007fcd37187668 in ?? () from /usr/lib64/libglib-2.0.so.0
#26 0x00007fcd3718770c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#27 0x00007fcd3b8d9d76 in QEventDispatcherGlib::processEvents (this=0x1637630, flags=...) at kernel/qeventdispatcher_glib.cpp:427
#28 0x00007fcd3aac9936 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#29 0x00007fcd3b8abd0f in QEventLoop::processEvents (this=this@entry=0x7fff7b3fae10, flags=...) at kernel/qeventloop.cpp:149
#30 0x00007fcd3b8ac005 in QEventLoop::exec (this=this@entry=0x7fff7b3fae10, flags=...) at kernel/qeventloop.cpp:204
#31 0x00007fcd3b8b113b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1221
#32 0x00007fcd3aa2b06c in QApplication::exec () at kernel/qapplication.cpp:3823
#33 0x00007fcd277f7fbb in kdemain (argc=1, argv=0x16a2600) at /usr/src/debug/kdelibs-4.12.0/kded/kded.cpp:925
#34 0x000000000040879e in launch (argc=argc@entry=1, _name=_name@entry=0x40b115 "kded4", args=<optimized out>, args@entry=0x0, cwd=cwd@entry=0x0, envc=envc@entry=0, envs=<optimized out>, envs@entry=0x0, reset_env=reset_env@entry=false, tty=tty@entry=0x0, avoid_loops=avoid_loops@entry=false, startup_id_str=startup_id_str@entry=0x40affd "0") at /usr/src/debug/kdelibs-4.12.0/kinit/kinit.cpp:726
#35 0x0000000000405f23 in main (argc=4, argv=<optimized out>, envp=0x7fff7b3fb6a0) at /usr/src/debug/kdelibs-4.12.0/kinit/kinit.cpp:1841

Reported using DrKonqi