Application: kontact (4.8.5)
KDE Platform Version: 4.8.5 (4.8.5)
Qt Version: 4.8.2
Operating System: Linux 3.6.2-1.fc16.x86_64 x86_64
Distribution: "Fedora release 16 (Verne)"

-- Information about the crash:
My battery died and after plugging on AC adapter and switching-on my laptop, there were 2 Kontacts opened, but switching one off would switch the other one off as well and consequently the application crashed

The crash does not seem to be reproducible.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
82	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f7f5bf25840 (LWP 1877))]

Thread 3 (Thread 0x7f7f50274700 (LWP 1881)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:165
#1  0x000000396c8237cc in WTF::TCMalloc_PageHeap::scavengerThread (this=0x396d1ffc40) at wtf/FastMalloc.cpp:2495
#2  0x000000396c8238f9 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00000035eee07d90 in start_thread (arg=0x7f7f50274700) at pthread_create.c:309
#4  0x00000035ee2f119d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7f7f4f973700 (LWP 1884)):
#0  0x00000035ee2e8803 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00000035f0645448 in g_main_context_poll (n_fds=1, fds=0x7f7f480013e0, priority=<optimized out>, timeout=4457, context=0x7f7f480009a0) at gmain.c:3402
#2  g_main_context_iterate (context=0x7f7f480009a0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3084
#3  0x00000035f064590c in g_main_context_iteration (context=0x7f7f480009a0, may_block=1) at gmain.c:3152
#4  0x0000003960da9246 in QEventDispatcherGlib::processEvents (this=0x7f7f480008c0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:426
#5  0x0000003960d79312 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x0000003960d79567 in QEventLoop::exec (this=0x7f7f4f972d40, flags=...) at kernel/qeventloop.cpp:204
#7  0x0000003960c78b87 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x0000003960c7bbcb in QThreadPrivate::start (arg=0x9d1670) at thread/qthread_unix.cpp:307
#9  0x00000035eee07d90 in start_thread (arg=0x7f7f4f973700) at pthread_create.c:309
#10 0x00000035ee2f119d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7f7f5bf25840 (LWP 1877)):
[KCrash Handler]
#6  0x0000003af949bea8 in MailCommon::Kernel::folderIsTemplates (this=<optimized out>, col=...) at /usr/src/debug/kdepim-4.8.5/mailcommon/mailkernel.cpp:225
#7  0x0000003af991a879 in KMMainWidget::updateMessageActionsDelayed (this=0xeaad10) at /usr/src/debug/kdepim-4.8.5/kmail/kmmainwidget.cpp:3899
#8  0x0000003af992f85a in KMMainWidget::qt_static_metacall (_o=0xeaad10, _c=<optimized out>, _id=<optimized out>, _a=0x7fff949e1e00) at /usr/src/debug/kdepim-4.8.5/x86_64-redhat-linux-gnu/kmail/kmmainwidget.moc:341
#9  0x0000003960d8e191 in QMetaObject::activate (sender=0x141c020, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3547
#10 0x0000003960d930f9 in QObject::event (this=0x141c020, e=<optimized out>) at kernel/qobject.cpp:1157
#11 0x00000039625c9ae4 in notify_helper (e=0x7fff949e2510, receiver=0x141c020, this=0x888b00) at kernel/qapplication.cpp:4551
#12 QApplicationPrivate::notify_helper (this=0x888b00, receiver=0x141c020, e=0x7fff949e2510) at kernel/qapplication.cpp:4523
#13 0x00000039625ce8b3 in QApplication::notify (this=0x7fff949e2820, receiver=0x141c020, e=0x7fff949e2510) at kernel/qapplication.cpp:4412
#14 0x0000003aed4528e6 in KApplication::notify (this=0x7fff949e2820, receiver=0x141c020, event=0x7fff949e2510) at /usr/src/debug/kdelibs-4.8.5/kdeui/kernel/kapplication.cpp:311
#15 0x0000003960d7a48c in QCoreApplication::notifyInternal (this=0x7fff949e2820, receiver=0x141c020, event=0x7fff949e2510) at kernel/qcoreapplication.cpp:915
#16 0x0000003960daafb2 in sendEvent (event=0x7fff949e2510, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#17 QTimerInfoList::activateTimers (this=0x88e560) at kernel/qeventdispatcher_unix.cpp:611
#18 0x0000003960da89bd in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:186
#19 timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:180
#20 0x0000003960da89e1 in idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:233
#21 0x00000035f0644f3d in g_main_dispatch (context=0x88e0c0) at gmain.c:2441
#22 g_main_context_dispatch (context=0x88e0c0) at gmain.c:3011
#23 0x00000035f0645738 in g_main_context_iterate (context=0x88e0c0, block=<optimized out>, dispatch=1, self=<optimized out>) at gmain.c:3089
#24 0x00000035f064590c in g_main_context_iteration (context=0x88e0c0, may_block=1) at gmain.c:3152
#25 0x0000003960da91df in QEventDispatcherGlib::processEvents (this=0x853ee0, flags=<optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#26 0x000000396266c81e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=<optimized out>) at kernel/qguieventdispatcher_glib.cpp:207
#27 0x0000003960d79312 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#28 0x0000003960d79567 in QEventLoop::exec (this=0x7fff949e27b0, flags=...) at kernel/qeventloop.cpp:204
#29 0x0000003960d7e225 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#30 0x00000000004036e9 in main (argc=3, argv=0x7fff949e2e48) at /usr/src/debug/kdepim-4.8.5/kontact/src/main.cpp:218

Reported using DrKonqi