Application: kontact (4.10.1)
KDE Platform Version: 4.10.1
Qt Version: 4.8.2
Operating System: Linux 3.2.0-38-generic x86_64
Distribution: Ubuntu 12.04.2 LTS

-- Information about the crash:
- What I was doing when the application crashed:
After logging into KDE, the last session was restored as usual. However, this time two instances of Kontact were started, although there was only one in the previous session. After closing instance 1 and picking up work with instance 2, this instance crashed.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f023c8547c0 (LWP 2182))]

Thread 5 (Thread 0x7f021e5bd700 (LWP 2272)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0239046dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f0239046f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f02340dfe9a in start_thread (arg=0x7f021e5bd700) at pthread_create.c:308
#4  0x00007f0239d7bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f021dcac700 (LWP 2278)):
#0  0x00007f02340e1f69 in __pthread_mutex_lock (mutex=0x7f0218000a60) at pthread_mutex_lock.c:92
#1  0x00007f02338565a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f023381a675 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f023381af5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f023381b164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f023b1c0926 in QEventDispatcherGlib::processEvents (this=0x7f02180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f023b18fe62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f023b1900b7 in QEventLoop::exec (this=0x7f021dcabdc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f023b08f077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f023b09209b in QThreadPrivate::start (arg=0x11e1e70) at thread/qthread_unix.cpp:307
#10 0x00007f02340dfe9a in start_thread (arg=0x7f021dcac700) at pthread_create.c:308
#11 0x00007f0239d7bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f01cf7bc700 (LWP 2387)):
#0  0x00007f0239d70303 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007f023381b036 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f023381b164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f023b1c0926 in QEventDispatcherGlib::processEvents (this=0x7f01c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007f023b18fe62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f023b1900b7 in QEventLoop::exec (this=0x7f01cf7bbd90, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f023b08f077 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007f023b16fb6f in QInotifyFileSystemWatcherEngine::run (this=0x19b4160) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007f023b09209b in QThreadPrivate::start (arg=0x19b4160) at thread/qthread_unix.cpp:307
#9  0x00007f02340dfe9a in start_thread (arg=0x7f01cf7bc700) at pthread_create.c:308
#10 0x00007f0239d7bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f01bc90a700 (LWP 2939)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:215
#1  0x00007f023b09250f in wait (time=30000, this=0x2158690) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2158d48, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f023b08568f in QThreadPoolThread::run (this=0x4bec6b0) at concurrent/qthreadpool.cpp:141
#4  0x00007f023b09209b in QThreadPrivate::start (arg=0x4bec6b0) at thread/qthread_unix.cpp:307
#5  0x00007f02340dfe9a in start_thread (arg=0x7f01bc90a700) at pthread_create.c:308
#6  0x00007f0239d7bcbd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#7  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f023c8547c0 (LWP 2182)):
[KCrash Handler]
#6  0x00007f01d4e71078 in MailCommon::Kernel::folderIsTemplates(Akonadi::Collection const&) () from /usr/lib/libmailcommon.so.4
#7  0x00007f01d5239977 in KMMainWidget::updateMessageActionsDelayed() () from /usr/lib/libkmailprivate.so.4
#8  0x00007f01d524a4ea in ?? () from /usr/lib/libkmailprivate.so.4
#9  0x00007f023b1a5781 in QMetaObject::activate (sender=0x2191250, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x00007f023b1aa679 in QObject::event (this=0x2191250, e=<optimized out>) at kernel/qobject.cpp:1157
#11 0x00007f023a5127b4 in notify_helper (e=0x7fff4cc8aff0, receiver=0x2191250, this=0x11dcde0) at kernel/qapplication.cpp:4556
#12 QApplicationPrivate::notify_helper (this=0x11dcde0, receiver=0x2191250, e=0x7fff4cc8aff0) at kernel/qapplication.cpp:4528
#13 0x00007f023a517583 in QApplication::notify (this=0x7fff4cc8b2d0, receiver=0x2191250, e=0x7fff4cc8aff0) at kernel/qapplication.cpp:4417
#14 0x00007f023bbfb006 in KApplication::notify (this=0x7fff4cc8b2d0, receiver=0x2191250, event=0x7fff4cc8aff0) at ../../kdeui/kernel/kapplication.cpp:311
#15 0x00007f023b19132c in QCoreApplication::notifyInternal (this=0x7fff4cc8b2d0, receiver=0x2191250, event=0x7fff4cc8aff0) at kernel/qcoreapplication.cpp:915
#16 0x00007f023b1c26f2 in sendEvent (event=0x7fff4cc8aff0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#17 QTimerInfoList::activateTimers (this=0x11e2a80) at kernel/qeventdispatcher_unix.cpp:611
#18 0x00007f023b1c010d in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#19 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#20 0x00007f023b1c0131 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#21 0x00007f023381ad53 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f023381b0a0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f023381b164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007f023b1c08bf in QEventDispatcherGlib::processEvents (this=0x11a3b60, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#25 0x00007f023a5bacde in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#26 0x00007f023b18fe62 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#27 0x00007f023b1900b7 in QEventLoop::exec (this=0x7fff4cc8b260, flags=...) at kernel/qeventloop.cpp:204
#28 0x00007f023b195407 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#29 0x00000000004035c9 in ?? ()
#30 0x00007f0239ca976d in __libc_start_main (main=0x402ae0, argc=3, ubp_av=0x7fff4cc8b8f8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff4cc8b8e8) at libc-start.c:226
#31 0x0000000000403b31 in _start ()

Possible duplicates by query: bug 309730, bug 303946.

Reported using DrKonqi