Application: kontact (4.8.5)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-31-generic x86_64
Distribution: Ubuntu 12.04.1 LTS

-- Information about the crash:
In this case, when I click on Akregator (I was earlier in kmail), kontact crashed.

But before there were cases similar. For example, when switching KNotes.

Also troubling is the fact that from time to time virtuoso server crashes. A symptom of this is 100% CPU load.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7faf6760a7c0 (LWP 10538))]

Thread 6 (Thread 0x7faf4a9c8700 (LWP 10585)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007faf63e0fdec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007faf63e0ff19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007faf5f2d1e9a in start_thread (arg=0x7faf4a9c8700) at pthread_create.c:308
#4  0x00007faf64b4139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7faf4a0b7700 (LWP 10586)):
#0  __libc_enable_asynccancel () at ../nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S:66
#1  0x00007faf64b359c8 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:85
#2  0x00007faf5ee05036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faf5ee05164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007faf652b6426 in QEventDispatcherGlib::processEvents (this=0x7faf440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007faf65285c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007faf65285ed7 in QEventLoop::exec (this=0x7faf4a0b6dc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007faf65184fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007faf65187fcb in QThreadPrivate::start (arg=0x18bbf40) at thread/qthread_unix.cpp:298
#9  0x00007faf5f2d1e9a in start_thread (arg=0x7faf4a0b7700) at pthread_create.c:308
#10 0x00007faf64b4139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7faefa4af700 (LWP 11257)):
#0  0x00007faf64b359e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf5ee05036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf5ee05164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faf652b6426 in QEventDispatcherGlib::processEvents (this=0x7faeec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007faf65285c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007faf65285ed7 in QEventLoop::exec (this=0x7faefa4aed90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007faf65184fa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007faf652659ff in QInotifyFileSystemWatcherEngine::run (this=0x210f2f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007faf65187fcb in QThreadPrivate::start (arg=0x210f2f0) at thread/qthread_unix.cpp:298
#9  0x00007faf5f2d1e9a in start_thread (arg=0x7faefa4af700) at pthread_create.c:308
#10 0x00007faf64b4139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7faeebfff700 (LWP 23807)):
#0  0x00007faf64b359e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf5ee05036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf5ee0549a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faee850598b in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4  0x00007faf5ee269e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faf5f2d1e9a in start_thread (arg=0x7faeebfff700) at pthread_create.c:308
#6  0x00007faf64b4139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7faee3fff700 (LWP 23808)):
#0  0x00007faf64b359e3 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007faf5ee05036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007faf5ee0549a in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007faeeaf2a406 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007faf5ee269e5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007faf5f2d1e9a in start_thread (arg=0x7faee3fff700) at pthread_create.c:308
#6  0x00007faf64b4139d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7faf6760a7c0 (LWP 10538)):
[KCrash Handler]
#6  0x00007faf64a85405 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007faf64a88b6b in __GI_abort () at abort.c:91
#8  0x00007faf6517d50b in qt_message_output (msgType=<optimized out>, buf=0x4feb058 "Fatal Error: Accessed global static 'KernelPrivate *sInstance()' after destruction. Defined at ../../mailcommon/mailkernel.cpp:48") at global/qglobal.cpp:2276
#9  0x00007faf6517d8bf in qt_message(QtMsgType, const char *, typedef __va_list_tag __va_list_tag *) (msgType=QtFatalMsg, msg=0x7faf00ea6b38 "Fatal Error: Accessed global static '%s *%s()' after destruction. Defined at %s:%d", ap=0x7fff17086f58) at global/qglobal.cpp:2322
#10 0x00007faf6517da64 in qFatal (msg=<optimized out>) at global/qglobal.cpp:2505
#11 0x00007faf00e4a38f in operator-> (this=<optimized out>) at ../../mailcommon/mailkernel.cpp:48
#12 MailCommon::Kernel::self () at ../../mailcommon/mailkernel.cpp:64
#13 0x00007faf00e3a0e9 in MailCommon::FolderCollection::writeConfig (this=0x258ace0) at ../../mailcommon/foldercollection.cpp:210
#14 0x00007faf00e3ab11 in MailCommon::FolderCollection::~FolderCollection (this=0x258ace0, __in_chrg=<optimized out>) at ../../mailcommon/foldercollection.cpp:83
#15 0x00007faf00e3aba9 in MailCommon::FolderCollection::~FolderCollection (this=0x258ace0, __in_chrg=<optimized out>) at ../../mailcommon/foldercollection.cpp:85
#16 0x00007faf00e388c6 in deref (value=0x258ace0, d=0x24e83e0) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:342
#17 deref (this=<optimized out>) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:336
#18 ~ExternalRefCount (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:401
#19 ~QSharedPointer (this=<optimized out>, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qsharedpointer_impl.h:466
#20 QMap<long long, QSharedPointer<MailCommon::FolderCollection> >::freeData (x=0x2346740, this=<optimized out>) at /usr/include/qt4/QtCore/qmap.h:651
#21 0x00007faf64a8a8e1 in __run_exit_handlers (status=1, listp=0x7faf64e05688, run_list_atexit=true) at exit.c:78
#22 0x00007faf64a8a965 in __GI_exit (status=<optimized out>) at exit.c:100
#23 0x00007faeea19675e in ?? () from /usr/lib/x86_64-linux-gnu/libgdk-x11-2.0.so.0
#24 0x00007faf6072936f in _XError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#25 0x00007faf60726311 in ?? () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#26 0x00007faf60727297 in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#27 0x00007faf6070cec4 in XGetWindowProperty () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#28 0x00007faf66afc64b in NETWinInfo::update (this=0x7fff17087840, dirty_props=<optimized out>) at ../../kdeui/windowmanagement/netwm.cpp:3962
#29 0x00007faf66afde16 in NETWinInfo::event (this=0x7fff17087840, event=0x7fff17087900, properties=0x7fff17087810, properties_size=2) at ../../kdeui/windowmanagement/netwm.cpp:3925
#30 0x00007faf66af2f18 in KWindowSystemPrivate::x11Event (this=0x28a7e80, ev=0x7fff17087900) at ../../kdeui/windowmanagement/kwindowsystem_x11.cpp:198
#31 0x00007faf669e3296 in publicX11Event (e=0x7fff17087900, this=<optimized out>) at ../../kdeui/kernel/ksystemeventfilter.cpp:43
#32 KSystemEventFilterPrivate::filterEvent (this=0x2aafdd0, message=0x7fff17087900) at ../../kdeui/kernel/ksystemeventfilter.cpp:102
#33 0x00007faf65279bee in QAbstractEventDispatcher::filterEvent (this=<optimized out>, message=<optimized out>) at kernel/qabstracteventdispatcher.cpp:539
#34 0x00007faf65d29048 in x11EventSourceDispatch (s=0x171e070, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:143
#35 0x00007faf5ee04d53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007faf5ee050a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007faf5ee05164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007faf652b63bf in QEventDispatcherGlib::processEvents (this=0x16cac10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#39 0x00007faf65d28d5e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0x00007faf65285c82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#41 0x00007faf65285ed7 in QEventLoop::exec (this=0x7fff17087ca0, flags=...) at kernel/qeventloop.cpp:204
#42 0x00007faf6528af67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#43 0x0000000000403629 in main (argc=1, argv=0x7fff17088338) at ../../../kontact/src/main.cpp:218

Possible duplicates by query: bug 302707, bug 296226, bug 286605, bug 286172, bug 281038.

Reported using DrKonqi