Application: kontact (4.4.9)
KDE Platform Version: 4.6.00 (4.6.0)
Qt Version: 4.7.0
Operating System: Linux 2.6.35-25-generic x86_64
Distribution: Ubuntu 10.10

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

I just tried to log off and shut down. Nothing else.
It occurs every time since KDE 4.6

The crash can be reproduced every time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f0412c93780 (LWP 10491))]

Thread 2 (Thread 0x7f03ee0dc700 (LWP 10591)):
#0  0x00007f040973ec9d in __pthread_mutex_unlock_usercnt (mutex=0x4477ce8) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x4477ce8) at pthread_mutex_unlock.c:290
#2  0x00007f040927cffc in ?? () from /lib/libglib-2.0.so.0
#3  0x00007f040927d45c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#4  0x00007f04103411e6 in QEventDispatcherGlib::processEvents (this=0x2dc6140, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:417
#5  0x00007f0410313a02 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#6  0x00007f0410313dec in QEventLoop::exec (this=0x7f03ee0dbd90, flags=) at kernel/qeventloop.cpp:201
#7  0x00007f041021e2fd in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:490
#8  0x00007f04102f35f8 in QInotifyFileSystemWatcherEngine::run (this=0x35a5d20) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f041022127e in QThreadPrivate::start (arg=0x35a5d20) at thread/qthread_unix.cpp:266
#10 0x00007f040973b971 in start_thread (arg=<value optimized out>) at pthread_create.c:304
#11 0x00007f040fc0992d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0412c93780 (LWP 10491)):
[KCrash Handler]
#6  0x00000000071bd670 in ?? ()
#7  0x00007f03dd741773 in Akregator::Folder::updateUnreadCount (this=0x6337be0) at ../../../akregator/src/folder.cpp:310
#8  0x00007f03dd7417d9 in Akregator::Folder::slotChildChanged (this=0x610e880) at ../../../akregator/src/folder.cpp:324
#9  0x00007f03dd742b24 in Akregator::Folder::qt_metacall (this=0x6337be0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff8a73f210) at ./folder.moc:91
#10 0x00007f041032cb27 in QMetaObject::activate (sender=0x4085aa0, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x1) at kernel/qobject.cpp:3280
#11 0x00007f03dd7403f2 in Akregator::TreeNode::signalChanged (this=0x610e880, _t1=0x4085aa0) at ./treenode.moc:114
#12 0x00007f03dd7449b2 in Akregator::Folder::removeChild (this=0x4085aa0, node=0x737da20) at ../../../akregator/src/folder.cpp:259
#13 0x00007f03dd740aa9 in Akregator::TreeNode::emitSignalDestroyed (this=0x737da20) at ../../../akregator/src/treenode.cpp:73
#14 0x00007f03dd73a232 in Akregator::Feed::~Feed (this=0x737da20, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../akregator/src/feed.cpp:319
#15 0x00007f03dd741386 in qDeleteAll<QList<Akregator::TreeNode*>::const_iterator> (this=0x3fc8360, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#16 qDeleteAll<QList<Akregator::TreeNode*> > (this=0x3fc8360, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#17 Akregator::Folder::FolderPrivate::~FolderPrivate (this=0x3fc8360, __in_chrg=<value optimized out>) at ../../../akregator/src/folder.cpp:68
#18 0x00007f03dd741420 in Akregator::Folder::~Folder (this=0x4085aa0, __in_chrg=<value optimized out>) at ../../../akregator/src/folder.cpp:95
#19 0x00007f03dd741386 in qDeleteAll<QList<Akregator::TreeNode*>::const_iterator> (this=0x55589c0, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#20 qDeleteAll<QList<Akregator::TreeNode*> > (this=0x55589c0, __in_chrg=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#21 Akregator::Folder::FolderPrivate::~FolderPrivate (this=0x55589c0, __in_chrg=<value optimized out>) at ../../../akregator/src/folder.cpp:68
#22 0x00007f03dd741420 in Akregator::Folder::~Folder (this=0x6337be0, __in_chrg=<value optimized out>) at ../../../akregator/src/folder.cpp:95
#23 0x00007f03dd746dd8 in Akregator::FeedList::setRootNode (this=0x4383e90, folder=0x0) at ../../../akregator/src/feedlist.cpp:435
#24 0x00007f03dd7498ab in Akregator::FeedList::~FeedList (this=0x4383e90, __in_chrg=<value optimized out>) at ../../../akregator/src/feedlist.cpp:315
#25 0x00007f03dd73154a in release (this=0x4410060, __in_chrg=<value optimized out>) at /usr/include/boost/smart_ptr/detail/sp_counted_base_gcc_x86.hpp:145
#26 ~shared_count (this=0x4410060, __in_chrg=<value optimized out>) at /usr/include/boost/smart_ptr/detail/shared_count.hpp:217
#27 ~shared_ptr (this=0x4410060, __in_chrg=<value optimized out>) at /usr/include/boost/smart_ptr/shared_ptr.hpp:169
#28 Akregator::ArticleDeleteJob::~ArticleDeleteJob (this=0x4410060, __in_chrg=<value optimized out>) at ../../../akregator/src/articlejobs.h:66
#29 0x00007f0410326d5f in QObjectPrivate::deleteChildren (this=0x46bfd50) at kernel/qobject.cpp:1957
#30 0x00007f041032e41b in QObject::~QObject (this=<value optimized out>, __in_chrg=<value optimized out>) at kernel/qobject.cpp:945
#31 0x00007f03dd76b112 in Akregator::ExpireItemsCommand::~ExpireItemsCommand (this=0x615e3c0, __in_chrg=<value optimized out>) at ../../../akregator/src/expireitemscommand.cpp:111
#32 0x00007f0410326d5f in QObjectPrivate::deleteChildren (this=0x43a3c50) at kernel/qobject.cpp:1957
#33 0x00007f0410d52168 in QWidget::~QWidget (this=0x6603270, __in_chrg=<value optimized out>) at kernel/qwidget.cpp:1589
#34 0x00007f03dd7a133f in Akregator::MainWidget::~MainWidget (this=0x6603270, __in_chrg=<value optimized out>) at ../../../akregator/src/mainwidget.cpp:102
#35 0x00007f040f8f19dd in KParts::Part::~Part (this=0x5eed750, __vtt_parm=0x7f03dd9f30f0, __in_chrg=<value optimized out>) at ../../kparts/part.cpp:209
#36 0x00007f03dd797a2a in Akregator::Part::~Part (this=0x5eed750, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../akregator/src/akregator_part.cpp:349
#37 0x00007f04122f5b4e in KontactInterface::Plugin::~Plugin (this=0x2a1a280, __vtt_parm=0x0, __in_chrg=<value optimized out>) at ../../kontactinterface/plugin.cpp:90
#38 0x00007f03f464bb36 in AkregatorPlugin::~AkregatorPlugin (this=0x610e880, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../../kontact/plugins/akregator/akregator_plugin.cpp:63
#39 0x00007f04128af71e in Kontact::MainWindow::~MainWindow (this=0x2556ff0, __in_chrg=<value optimized out>, __vtt_parm=<value optimized out>) at ../../../kontact/src/mainwindow.cpp:258
#40 0x0000000000403b8f in qDeleteAll<QList<KMainWindow*>::const_iterator> (argc=<value optimized out>, argv=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:322
#41 qDeleteAll<QList<KMainWindow*> > (argc=<value optimized out>, argv=<value optimized out>) at /usr/include/qt4/QtCore/qalgorithms.h:330
#42 main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:225

Possible duplicates by query: bug 240559, bug 197845.

Reported using DrKonqi