Application: Kontact (kontact), signal SIGSEGV
Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 0xb4d54720 (LWP 7516)]
[New Thread 0xb07feb90 (LWP 7794)]
[KCrash handler]
#6  0xb708ac8f in KJob::kill (this=0x92e1fa8, verbosity=KJob::EmitResult)
    at /tmp/buildd/kde4libs-4.0.84+svn828328/kdecore/jobs/kjob.cpp:106
#7  0xb7c80c62 in KAbstractWidgetJobTracker::slotStop (this=0x9acabf8, 
    job=0x92e1fa8)
    at /tmp/buildd/kde4libs-4.0.84+svn828328/kdeui/jobs/kabstractwidgetjobtracker.cpp:129
#8  0xb7c81942 in KWidgetJobTracker::Private::ProgressWidget::_k_stop (
    this=0x9ca15f0)
    at /tmp/buildd/kde4libs-4.0.84+svn828328/kdeui/jobs/kwidgetjobtracker.cpp:629
#9  0xb7c82aab in KWidgetJobTracker::Private::ProgressWidget::qt_metacall (
    this=0x9ca15f0, _c=QMetaObject::InvokeMetaMethod, _id=13, _a=0xbfab061c)
    at /tmp/buildd/kde4libs-4.0.84+svn828328/obj-i486-linux-gnu/kdeui/kwidgetjobtracker_p.moc:101
#10 0xb6ee0090 in QMetaObject::activate (sender=0x9cc7af0, 
    from_signal_index=29, to_signal_index=30, argv=0xbfab061c)
    at kernel/qobject.cpp:3010
#11 0xb6ee0490 in QMetaObject::activate (sender=0x9cc7af0, m=0xb7aabc44, 
    from_local_signal_index=2, to_local_signal_index=3, argv=0xbfab061c)
    at kernel/qobject.cpp:3100
#12 0xb78e2da1 in QAbstractButton::clicked (this=0x9cc7af0, _t1=false)
    at .moc/release-shared/moc_qabstractbutton.cpp:185
#13 0xb7638789 in QAbstractButtonPrivate::emitClicked (this=0x9cc7b40)
    at widgets/qabstractbutton.cpp:543
#14 0xb763a2f4 in QAbstractButtonPrivate::click (this=0x9cc7b40)
    at widgets/qabstractbutton.cpp:536
#15 0xb763a586 in QAbstractButton::mouseReleaseEvent (this=0x9cc7af0, 
    e=0xbfab0cbc) at widgets/qabstractbutton.cpp:1112
#16 0xb73594f2 in QWidget::event (this=0x9cc7af0, event=0xbfab0cbc)
    at kernel/qwidget.cpp:6927
#17 0xb763862e in QAbstractButton::event (this=0x9cc7af0, e=0xbfab0cbc)
    at widgets/qabstractbutton.cpp:1074
#18 0xb76de570 in QPushButton::event (this=0x9cc7af0, e=0xbfab0cbc)
    at widgets/qpushbutton.cpp:658
#19 0xb730166c in QApplicationPrivate::notify_helper (this=0x9061a28, 
    receiver=0x9cc7af0, e=0xbfab0cbc) at kernel/qapplication.cpp:3772
#20 0xb7309df1 in QApplication::notify (this=0xbfab158c, receiver=0x9cc7af0, 
    e=0xbfab0cbc) at kernel/qapplication.cpp:3501
#21 0xb7c8dfdd in KApplication::notify (this=0xbfab158c, receiver=0x9cc7af0, 
    event=0xbfab0cbc)
    at /tmp/buildd/kde4libs-4.0.84+svn828328/kdeui/kernel/kapplication.cpp:311
#22 0xb6ecb541 in QCoreApplication::notifyInternal (this=0xbfab158c, 
    receiver=0x9cc7af0, event=0xbfab0cbc) at kernel/qcoreapplication.cpp:587
#23 0xb730907e in QApplicationPrivate::sendMouseEvent (receiver=0x9cc7af0, 
    event=0xbfab0cbc, alienWidget=0x9cc7af0, nativeWidget=0x9ca15f0, 
    buttonDown=0xb7ab77d0, lastMouseReceiver=@0xb7ab77d4)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#24 0xb73725fd in QETWidget::translateMouseEvent (this=0x9ca15f0, 
    event=0xbfab11ac) at kernel/qapplication_x11.cpp:4133
#25 0xb73713cf in QApplication::x11ProcessEvent (this=0xbfab158c, 
    event=0xbfab11ac) at kernel/qapplication_x11.cpp:3255
#26 0xb739ad14 in x11EventSourceDispatch (s=0x90645e0, callback=0, 
    user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:148
#27 0xb570c978 in IA__g_main_context_dispatch (context=0x9063a58)
    at /build/buildd/glib2.0-2.16.3/glib/gmain.c:2009
#28 0xb570fbce in g_main_context_iterate (context=0x9063a58, block=1, 
    dispatch=1, self=0x9060808)
    at /build/buildd/glib2.0-2.16.3/glib/gmain.c:2642
#29 0xb571011c in IA__g_main_context_iteration (context=0x9063a58, 
    may_block=1) at /build/buildd/glib2.0-2.16.3/glib/gmain.c:2705
#30 0xb6ef5b48 in QEventDispatcherGlib::processEvents (this=0x905ca78, flags=
      {i = -1079307432}) at kernel/qeventdispatcher_glib.cpp:325
#31 0xb739a415 in QGuiEventDispatcherGlib::processEvents (this=0x905ca78, 
    flags={i = -1079307384}) at kernel/qguieventdispatcher_glib.cpp:204
#32 0xb6ec9c2a in QEventLoop::processEvents (this=0xbfab1400, flags=
      {i = -1079307320}) at kernel/qeventloop.cpp:149
#33 0xb6ec9dea in QEventLoop::exec (this=0xbfab1400, flags={i = -1079307256})
    at kernel/qeventloop.cpp:200
#34 0xb6ecc495 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845
#35 0xb73014e7 in QApplication::exec () at kernel/qapplication.cpp:3304
#36 0x0804bd9e in main (argc=1, argv=0xbfab1784)
    at /tmp/buildd/kdepim-4.0.84/kontact/src/main.cpp:210
#37 0xb6b60450 in __libc_start_main () from /lib/i686/cmov/libc.so.6
#38 0x0804a511 in _start ()
#0  0xb7f98424 in __kernel_vsyscall ()

Please don't mix the issues. This backtrace is unrelated and the issue was resolved. (bug 165912).

Run kontact from a console and paste the dbus error.

rrs@learner:~$ kontact
kontact(28581) KWallet::Wallet::openWallet: Pass a valid window to KWallet::Wallet::openWallet().
kontact(28581) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
kontact(28581) ViewManager::setActiveView: entering ViewManager::setActiveView
kontact(28581) KStatusBar::removeItem: KStatusBar::removeItem: bad item id:  1
kontact(28581) KStatusBar::removeItem: KStatusBar::removeItem: bad item id:  2
kontact(28581) KStatusBar::removeItem: KStatusBar::removeItem: bad item id:  1
kontact(28581) KStatusBar::removeItem: KStatusBar::removeItem: bad item id:  2
kontact(28581) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
kontact(28581) Kolab::Incidence::loadAttribute: Saving unhandled tag "inline-attachment"
<unknown program name>(28580)/: Communication problem with  "kontact" , it probably crashed.
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or thenetwork connection was broken." "

I've re-installed KDE 4.1 and this issue is back again.
On a fresh user account this issue is not seen.

But for the user, which was running kDE3 earlier, this issue is there.

I find the following in .xsession-errors
rrs@learner:~$ grep -i kmail .xsession-errors
kopete(4599) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
korgac(4629) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
krunner(4533) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"

rrs@learner:~$ kontact                                                                  
kontact(10129) KWallet::Wallet::openWallet: Pass a valid window to KWallet::Wallet::openWallet(). 
kontact(10129) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
kontact(10129) KDBusServiceStarter::findServiceFor: DBus service is available now, as "org.kde.kmail"
kontact(10129) Kolab::Incidence::loadAttribute: Saving unhandled tag "inline-attachment"             
<unknown program name>(10128)/: Communication problem with  "kontact" , it probably crashed.         
Error message was:  "org.freedesktop.DBus.Error.NoReply" : " "Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken." " 

I'm closing this bug as I don't see the problem with the latest KDEPIM.