Application: kontact (4.10.1)
KDE Platform Version: 4.10.1
Qt Version: 4.8.4
Operating System: Linux 3.7.10-gentoo x86_64
Distribution: "Gentoo Base System release 2.1"

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

I closed the application using the menu File>Quit.

Unusual behaviour that I had noticed (and why I quit it): One of my IMAP accounts was not updated. So I clicked on "Update this account and subfolders", but nothing seemed to happen. Then I noticed that there was a progress marker 0% for "Updating Drafts..." (one of the folders on the IMAP account). I clicked X on that, but it didn't stop. Then I chose File>Quit. The window disappeared, but the icon in the taskbar was still there. I also right-clicked the icon. The crash message came a few seconds later, together with a second crash message from plasma desktop. (I'll mark the second report as a duplicate of this one.)

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fed3e8e0780 (LWP 26967))]

Thread 4 (Thread 0x7fed23b40700 (LWP 26981)):
#0  pthread_cond_wait () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fed3afd0b0c in scavengerThread (this=0x7fed3ba1f0e0 <WTF::pageheap_memory>) at wtf/FastMalloc.cpp:2495
#2  WTF::TCMalloc_PageHeap::runScavengerThread (context=0x7fed3ba1f0e0 <WTF::pageheap_memory>) at wtf/FastMalloc.cpp:1618
#3  0x00007fed36548f26 in start_thread (arg=0x7fed23b40700) at pthread_create.c:305
#4  0x00007fed3bd894ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 3 (Thread 0x7fed2323f700 (LWP 26982)):
#0  0x00007fed3bd80513 in *__GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fed35735bf6 in g_main_context_poll (n_fds=1, fds=0x7fed1c0029c0, timeout=-1, context=0x7fed1c0009a0, priority=<optimized out>) at gmain.c:3440
#2  g_main_context_iterate (context=0x7fed1c0009a0, block=1, dispatch=1, self=<optimized out>) at gmain.c:3141
#3  0x00007fed35735d0c in g_main_context_iteration (context=0x7fed1c0009a0, may_block=1) at gmain.c:3207
#4  0x00007fed3d1df72e in QEventDispatcherGlib::processEvents (this=0x7fed1c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fed3d1aedb2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fed3d1af037 in QEventLoop::exec (this=0x7fed2323ede0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fed3d0abcbf in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#8  0x00007fed3d0aed3c in QThreadPrivate::start (arg=0x140d1d0) at thread/qthread_unix.cpp:338
#9  0x00007fed36548f26 in start_thread (arg=0x7fed2323f700) at pthread_create.c:305
#10 0x00007fed3bd894ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 2 (Thread 0x7fecce6bb700 (LWP 17797)):
#0  0x00007fed3bd7ba6d in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007fed35772ef0 in read (__nbytes=16, __buf=0x7fecce6bac10, __fd=<optimized out>) at /usr/include/bits/unistd.h:45
#2  g_wakeup_acknowledge (wakeup=0xe620d60) at gwakeup.c:212
#3  0x00007fed3573573c in g_main_context_check (context=0x7fecc8006b30, max_priority=2147483647, fds=0x7fecc8003640, n_fds=1) at gmain.c:2980
#4  0x00007fed35735b9c in g_main_context_iterate (context=0x7fecc8006b30, block=1, dispatch=1, self=<optimized out>) at gmain.c:3143
#5  0x00007fed35735d0c in g_main_context_iteration (context=0x7fecc8006b30, may_block=1) at gmain.c:3207
#6  0x00007fed3d1df72e in QEventDispatcherGlib::processEvents (this=0x7fecc800c7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fed3d1aedb2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fed3d1af037 in QEventLoop::exec (this=0x7fecce6badb0, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fed3d0abcbf in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#10 0x00007fed3d18e69f in QInotifyFileSystemWatcherEngine::run (this=0xec3cd10) at io/qfilesystemwatcher_inotify.cpp:256
#11 0x00007fed3d0aed3c in QThreadPrivate::start (arg=0xec3cd10) at thread/qthread_unix.cpp:338
#12 0x00007fed36548f26 in start_thread (arg=0x7fecce6bb700) at pthread_create.c:305
#13 0x00007fed3bd894ed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Thread 1 (Thread 0x7fed3e8e0780 (LWP 26967)):
[KCrash Handler]
#6  0x00007fecdb46e76f in KMail::KMSystemTray::fillFoldersMenu (this=0x1cf70d0, menu=0x5903f10, model=0x13bf130, parentName=..., parentIndex=...) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kmail/kmsystemtray.cpp:293
#7  0x00007fecdb46edca in KMail::KMSystemTray::slotContextMenuAboutToShow (this=0x1cf70d0) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kmail/kmsystemtray.cpp:279
#8  0x00007fed3d1c4441 in QMetaObject::activate (sender=0x1d20be0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3539
#9  0x00007fed3d1b7f28 in QMetaMethod::invoke (this=0x7fffac9a95a0, object=0x1d20be0, connectionType=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#10 0x00007fed3d1ba307 in QMetaObject::invokeMethod (obj=0x1d20be0, member=<optimized out>, type=Qt::AutoConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#11 0x00007fed36f940b3 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., member=0x7fed36fa6ea8 "aboutToShow", obj=0x1d20be0) at /usr/include/qt4/QtCore/qobjectdefs.h:434
#12 DBusMenuExporterDBus::AboutToShow (this=<optimized out>, id=<optimized out>) at /tmp/portage/dev-libs/libdbusmenu-qt-0.9.2/work/libdbusmenu-qt-0.9.2/src/dbusmenuexporterdbus_p.cpp:156
#13 0x00007fed36f96297 in DBusMenuExporterDBus::qt_static_metacall (_o=0x14266f0, _c=<optimized out>, _id=7, _a=0x7fffac9a9910) at /tmp/portage/dev-libs/libdbusmenu-qt-0.9.2/work/libdbusmenu-qt-0.9.2_build/src/dbusmenuexporterdbus_p.moc:89
#14 0x00007fed36f9643f in DBusMenuExporterDBus::qt_metacall (this=0x14266f0, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0x7fffac9a9910) at /tmp/portage/dev-libs/libdbusmenu-qt-0.9.2/work/libdbusmenu-qt-0.9.2_build/src/dbusmenuexporterdbus_p.moc:129
#15 0x00007fed38db8eb2 in QDBusConnectionPrivate::deliverCall (this=0x1d18980, object=0x14266f0, msg=..., metaTypes=..., slotIdx=11) at qdbusintegrator.cpp:951
#16 0x00007fed38dba005 in QDBusConnectionPrivate::activateCall (this=0x1d18980, object=0x14266f0, flags=4080, msg=...) at qdbusintegrator.cpp:863
#17 0x00007fed38dba5c1 in QDBusConnectionPrivate::activateObject (this=0x1d18980, node=..., msg=..., pathStartPos=<optimized out>) at qdbusintegrator.cpp:1447
#18 0x00007fed38dbaa9b in QDBusActivateObjectEvent::placeMetaCall (this=0xe79c1e0) at qdbusintegrator.cpp:1541
#19 0x00007fed3d1c95fe in QObject::event (this=0x14266f0, e=<optimized out>) at kernel/qobject.cpp:1194
#20 0x00007fed3c52fcd4 in notify_helper (e=0xe79c1e0, receiver=0x14266f0, this=0x13f82f0) at kernel/qapplication.cpp:4562
#21 QApplicationPrivate::notify_helper (this=0x13f82f0, receiver=0x14266f0, e=0xe79c1e0) at kernel/qapplication.cpp:4534
#22 0x00007fed3c534a33 in QApplication::notify (this=0x7fffac9ab580, receiver=0x14266f0, e=0xe79c1e0) at kernel/qapplication.cpp:4423
#23 0x00007fed3dc78428 in KApplication::notify (this=0x7fffac9ab580, receiver=0x14266f0, event=0xe79c1e0) at /tmp/portage/kde-base/kdelibs-4.10.1-r1/work/kdelibs-4.10.1/kdeui/kernel/kapplication.cpp:311
#24 0x00007fed3d1b030b in QCoreApplication::notifyInternal (this=0x7fffac9ab580, receiver=0x14266f0, event=0xe79c1e0) at kernel/qcoreapplication.cpp:946
#25 0x00007fed3d1b3c29 in sendEvent (event=0xe79c1e0, receiver=0x14266f0) at kernel/qcoreapplication.h:231
#26 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x13bf670) at kernel/qcoreapplication.cpp:1570
#27 0x00007fed3d1df2f3 in sendPostedEvents () at kernel/qcoreapplication.h:236
#28 postEventSourceDispatch (s=0x1408510) at kernel/qeventdispatcher_glib.cpp:279
#29 0x00007fed357358fa in g_main_dispatch (context=0x13f9340) at gmain.c:2539
#30 g_main_context_dispatch (context=0x13f9340) at gmain.c:3075
#31 0x00007fed35735c58 in g_main_context_iterate (context=0x13f9340, block=1, dispatch=1, self=<optimized out>) at gmain.c:3146
#32 0x00007fed35735d0c in g_main_context_iteration (context=0x13f9340, may_block=1) at gmain.c:3207
#33 0x00007fed3d1df6d6 in QEventDispatcherGlib::processEvents (this=0x13c0b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#34 0x00007fed3c5d4006 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#35 0x00007fed3d1aedb2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#36 0x00007fed3d1af037 in QEventLoop::exec (this=0x7fffac9aa690, flags=...) at kernel/qeventloop.cpp:204
#37 0x00007fed3d660cce in KJob::exec (this=0x1a21020) at /tmp/portage/kde-base/kdelibs-4.10.1-r1/work/kdelibs-4.10.1/kdecore/jobs/kjob.cpp:210
#38 0x00007fecdb47da38 in KMKernel::cleanup (this=0x1930600) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kmail/kmkernel.cpp:1323
#39 0x00007fecdb7c9c52 in KMailPart::~KMailPart (this=0x17f33f0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kmail/kmail_part.cpp:119
#40 0x00007fecdb7c9d89 in KMailPart::~KMailPart (this=0x17f33f0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kmail/kmail_part.cpp:121
#41 0x00007fed3e0d5b2e in KontactInterface::Plugin::~Plugin (this=0x16e8d40, __vtt_parm=<optimized out>, __in_chrg=<optimized out>) at /tmp/portage/kde-base/kdepimlibs-4.10.1/work/kdepimlibs-4.10.1/kontactinterface/plugin.cpp:91
#42 0x00007fed207e2b3f in KMailPlugin::~KMailPlugin (this=0x16e8d40, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kontact/plugins/kmail/kmail_plugin.cpp:159
#43 0x00007fed207e2b89 in KMailPlugin::~KMailPlugin (this=0x16e8d40, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kmail-4.10.1/work/kmail-4.10.1/kontact/plugins/kmail/kmail_plugin.cpp:163
#44 0x00007fed3e50f00f in Kontact::MainWindow::~MainWindow (this=0x15affa0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kontact-4.10.1/work/kontact-4.10.1/kontact/src/mainwindow.cpp:294
#45 0x00007fed3e50f1c9 in Kontact::MainWindow::~MainWindow (this=0x15affa0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /tmp/portage/kde-base/kontact-4.10.1/work/kontact-4.10.1/kontact/src/mainwindow.cpp:296
#46 0x00007fed3d1c9638 in QObject::event (this=0x15affa0, e=<optimized out>) at kernel/qobject.cpp:1175
#47 0x00007fed3c5809db in QWidget::event (this=0x15affa0, event=0xe4f6020) at kernel/qwidget.cpp:8845
#48 0x00007fed3c93feb3 in QMainWindow::event (this=0x15affa0, event=0xe4f6020) at widgets/qmainwindow.cpp:1478
#49 0x00007fed3dd791d7 in KXmlGuiWindow::event (this=0x15affa0, ev=0xe4f6020) at /tmp/portage/kde-base/kdelibs-4.10.1-r1/work/kdelibs-4.10.1/kdeui/xmlgui/kxmlguiwindow.cpp:126
#50 0x00007fed3c52fcd4 in notify_helper (e=0xe4f6020, receiver=0x15affa0, this=0x13f82f0) at kernel/qapplication.cpp:4562
#51 QApplicationPrivate::notify_helper (this=0x13f82f0, receiver=0x15affa0, e=0xe4f6020) at kernel/qapplication.cpp:4534
#52 0x00007fed3c534a33 in QApplication::notify (this=0x7fffac9ab580, receiver=0x15affa0, e=0xe4f6020) at kernel/qapplication.cpp:4423
#53 0x00007fed3dc78428 in KApplication::notify (this=0x7fffac9ab580, receiver=0x15affa0, event=0xe4f6020) at /tmp/portage/kde-base/kdelibs-4.10.1-r1/work/kdelibs-4.10.1/kdeui/kernel/kapplication.cpp:311
#54 0x00007fed3d1b030b in QCoreApplication::notifyInternal (this=0x7fffac9ab580, receiver=0x15affa0, event=0xe4f6020) at kernel/qcoreapplication.cpp:946
#55 0x00007fed3d1b3c29 in sendEvent (event=0xe4f6020, receiver=0x15affa0) at kernel/qcoreapplication.h:231
#56 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x13bf670) at kernel/qcoreapplication.cpp:1570
#57 0x00007fed3d1df2f3 in sendPostedEvents () at kernel/qcoreapplication.h:236
#58 postEventSourceDispatch (s=0x1408510) at kernel/qeventdispatcher_glib.cpp:279
#59 0x00007fed357358fa in g_main_dispatch (context=0x13f9340) at gmain.c:2539
#60 g_main_context_dispatch (context=0x13f9340) at gmain.c:3075
#61 0x00007fed35735c58 in g_main_context_iterate (context=0x13f9340, block=1, dispatch=1, self=<optimized out>) at gmain.c:3146
#62 0x00007fed35735d0c in g_main_context_iteration (context=0x13f9340, may_block=1) at gmain.c:3207
#63 0x00007fed3d1df6d6 in QEventDispatcherGlib::processEvents (this=0x13c0b30, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#64 0x00007fed3c5d4006 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#65 0x00007fed3d1aedb2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#66 0x00007fed3d1af037 in QEventLoop::exec (this=0x7fffac9ab510, flags=...) at kernel/qeventloop.cpp:204
#67 0x00007fed3d1b3f25 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#68 0x0000000000403b29 in main (argc=1, argv=0x7fffac9abba8) at /tmp/portage/kde-base/kontact-4.10.1/work/kontact-4.10.1/kontact/src/main.cpp:219

Reported using DrKonqi