Application: kontact (4.6.0)
KDE Platform Version: 4.6.4 (4.6.4)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-10-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
Kontact startups normally, I work with it, and after I switch to another app.
And when I go back and try to activate Kontact window, I got the crash.

The crash can be reproduced some of the time.

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fe0bc6d37a0 (LWP 3694))]

Thread 3 (Thread 0x7fe0b5e12700 (LWP 3700)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000003d4b117832 in ?? () from /usr/lib/libQtWebKit.so.4
#2  0x0000003bfe206d8c in start_thread (arg=0x7fe0b5e12700) at pthread_create.c:304
#3  0x0000003bfdae604d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#4  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fe0b00a2700 (LWP 10516)):
#0  0x0000003bfdad8f03 in __poll (fds=<value optimized out>, nfds=<value optimized out>, timeout=<value optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x0000003bff643104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x0000003bff643639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x0000003d41d86446 in QEventDispatcherGlib::processEvents (this=0x1f1a270, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x0000003d41d5a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x0000003d41d5aabc in QEventLoop::exec (this=0x7fe0b00a1db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x0000003d41c71924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x0000003d41d3cc2f in QInotifyFileSystemWatcherEngine::run (this=0x21a3f10) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x0000003d41c74175 in QThreadPrivate::start (arg=0x21a3f10) at thread/qthread_unix.cpp:320
#9  0x0000003bfe206d8c in start_thread (arg=0x7fe0b00a2700) at pthread_create.c:304
#10 0x0000003bfdae604d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fe0bc6d37a0 (LWP 3694)):
[KCrash Handler]
#6  QCoreApplication::postEvent (receiver=0x39d6bb0, event=0x37e7a30, priority=0) at kernel/qcoreapplication.cpp:1132
#7  0x0000003d4cc7c4ad in KPIM::AgentProgressMonitor::Private::instanceStatusChanged (this=0x3cb1650, instance=...) at ../../libkdepim/agentprogressmonitor.cpp:86
#8  0x0000003d4cc7c58a in KPIM::AgentProgressMonitor::qt_metacall (this=0x39d5e00, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1e5f2a10) at ./agentprogressmonitor.moc:78
#9  0x0000003d41d705f8 in QMetaObject::activate (sender=0x2193140, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff1e5f2a10) at kernel/qobject.cpp:3287
#10 0x0000003d48490625 in Akonadi::AgentManager::instanceStatusChanged (this=<value optimized out>, _t1=<value optimized out>) at ./agentmanager.moc:177
#11 0x0000003d48494d7f in Akonadi::AgentManagerPrivate::agentInstanceStatusChanged (this=0x21932b0, identifier=<value optimized out>, status=0, msg=...) at ../../akonadi/agentmanager.cpp:129
#12 0x0000003d4849725e in Akonadi::AgentManager::qt_metacall (this=0x2193140, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff1e5f2b80) at ./agentmanager.moc:131
#13 0x0000003d41d705f8 in QMetaObject::activate (sender=0x20ce160, m=<value optimized out>, local_signal_index=<value optimized out>, argv=0x7fff1e5f2b80) at kernel/qobject.cpp:3287
#14 0x0000003d485b3e6b in OrgFreedesktopAkonadiAgentManagerInterface::agentInstanceStatusChanged (this=<value optimized out>, _t1=<value optimized out>, _t2=0, _t3=<value optimized out>) at agentmanagerinterface.moc:285
#15 0x0000003d485b4301 in OrgFreedesktopAkonadiAgentManagerInterface::qt_metacall (this=0x20ce160, _c=QMetaObject::InvokeMetaMethod, _id=7, _a=0x7fff1e5f3450) at agentmanagerinterface.moc:167
#16 0x0000003d42a209fa in QDBusConnectionPrivate::deliverCall (this=0x1cf3260, object=0x20ce160, msg=..., metaTypes=..., slotIdx=12) at qdbusintegrator.cpp:942
#17 0x0000003d42a2ae4f in QDBusCallDeliveryEvent::placeMetaCall (this=<value optimized out>, object=<value optimized out>) at qdbusintegrator_p.h:103
#18 0x0000003d41d6f49a in QObject::event (this=0x20ce160, e=<value optimized out>) at kernel/qobject.cpp:1226
#19 0x0000003d435b99f4 in QApplicationPrivate::notify_helper (this=0x1cffaa0, receiver=0x20ce160, e=0x3a8f080) at kernel/qapplication.cpp:4462
#20 0x0000003d435be3ba in QApplication::notify (this=<value optimized out>, receiver=0x20ce160, e=0x3a8f080) at kernel/qapplication.cpp:4341
#21 0x0000003d4503c716 in KApplication::notify (this=0x7fff1e5f3ea0, receiver=0x20ce160, event=0x3a8f080) at ../../kdeui/kernel/kapplication.cpp:311
#22 0x0000003d41d5b49c in QCoreApplication::notifyInternal (this=0x7fff1e5f3ea0, receiver=0x20ce160, event=0x3a8f080) at kernel/qcoreapplication.cpp:731
#23 0x0000003d41d5ec25 in sendEvent (receiver=0x0, event_type=0, data=0x1cabd40) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#24 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x1cabd40) at kernel/qcoreapplication.cpp:1372
#25 0x0000003d41d86253 in sendPostedEvents (s=0x1d0f100) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#26 postEventSourceDispatch (s=0x1d0f100) at kernel/qeventdispatcher_glib.cpp:277
#27 0x0000003bff642bcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x0000003bff6433a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x0000003bff643639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x0000003d41d863ef in QEventDispatcherGlib::processEvents (this=0x1cab520, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#31 0x0000003d436634de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x0000003d41d5a882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#33 0x0000003d41d5aabc in QEventLoop::exec (this=0x7fff1e5f3e30, flags=...) at kernel/qeventloop.cpp:201
#34 0x0000003d41d5eecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#35 0x0000000000403ff8 in main (argc=1, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

Possible duplicates by query: bug 276632, bug 259572, bug 258177, bug 258080.

Reported using DrKonqi