Application: kontact (4.8.4)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-27-generic x86_64
Distribution: Ubuntu 12.04 LTS

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

I closed the Kontact window by clicking the close button of the window and Kontact 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 0x7f03b3d537c0 (LWP 10555))]

Thread 3 (Thread 0x7f0397113700 (LWP 10556)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f03b0548dec in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f03b0548f19 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f03aba0ce9a in start_thread (arg=0x7f0397113700) at pthread_create.c:308
#4  0x00007f03b127a4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f034342c700 (LWP 10568)):
#0  0x00007f03aba0ef69 in __pthread_mutex_lock (mutex=0x7f033c000a60) at pthread_mutex_lock.c:92
#1  0x00007f03ab57b5a1 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f03ab53f675 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f03ab53ff5b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f03ab540164 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f03b19ef426 in QEventDispatcherGlib::processEvents (this=0x7f033c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f03b19bec82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f03b19beed7 in QEventLoop::exec (this=0x7f034342bd90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f03b18bdfa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f03b199e9ff in QInotifyFileSystemWatcherEngine::run (this=0x144a360) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f03b18c0fcb in QThreadPrivate::start (arg=0x144a360) at thread/qthread_unix.cpp:298
#11 0x00007f03aba0ce9a in start_thread (arg=0x7f034342c700) at pthread_create.c:308
#12 0x00007f03b127a4bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f03b3d537c0 (LWP 10555)):
[KCrash Handler]
#6  malloc_consolidate (av=0x7f0344000020) at malloc.c:4240
#7  0x00007f03b12075a9 in malloc_consolidate (av=0x7f0344000020) at malloc.c:4215
#8  _int_free (av=0x7f0344000020, p=<optimized out>, have_lock=0) at malloc.c:4146
#9  0x00007f03b190b612 in QString::free (d=0x7f03443abca0) at tools/qstring.cpp:1235
#10 0x00007f03b19e3b59 in ~QString (this=0x7f03442d6120, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:880
#11 v_clear<QString> (d=0x7f03442d6120) at ../../include/QtCore/private/../../../src/corelib/kernel/qvariant_p.h:144
#12 clear (d=0x7f03442d6120) at kernel/qvariant.cpp:199
#13 0x00007f03a9ac62f1 in ~Private (this=<optimized out>, __in_chrg=<optimized out>) at ../../nepomuk/core/variant.cpp:44
#14 Nepomuk::Variant::~Variant (this=0x7f0344169758, __in_chrg=<optimized out>) at ../../nepomuk/core/variant.cpp:59
#15 0x00007f03a9adc5bd in ~QHashNode (this=0x7f0344169740, __in_chrg=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:216
#16 QHash<QUrl, Nepomuk::Variant>::deleteNode2 (node=0x7f0344169740) at /usr/include/qt4/QtCore/qhash.h:521
#17 0x00007f03b18dcaca in QHashData::free_helper (this=0x7f0344163430, node_delete=0x7f03a9adc5b0 <QHash<QUrl, Nepomuk::Variant>::deleteNode2(QHashData::Node*)>) at tools/qhash.cpp:275
#18 0x00007f03a9ad7e00 in freeData (x=<optimized out>, this=<optimized out>) at /usr/include/qt4/QtCore/qhash.h:570
#19 operator= (other=..., this=0x7f03442c5250) at /usr/include/qt4/QtCore/qhash.h:597
#20 clear (this=0x7f03442c5250) at /usr/include/qt4/QtCore/qhash.h:576
#21 Nepomuk::ResourceData::resetAll (this=0x7f03442c5240, isDelete=true) at ../../nepomuk/core/resourcedata.cpp:198
#22 0x00007f03a9ad88be in Nepomuk::ResourceData::~ResourceData (this=0x7f03442c5240, __in_chrg=<optimized out>) at ../../nepomuk/core/resourcedata.cpp:106
#23 0x00007f03a9ae08a6 in Nepomuk::ResourceManagerPrivate::cleanupCache (this=<optimized out>, num=-1) at ../../nepomuk/core/resourcemanager.cpp:194
#24 0x00007f03a9ae0aec in Nepomuk::ResourceManager::~ResourceManager (this=0xbe4e60, __in_chrg=<optimized out>) at ../../nepomuk/core/resourcemanager.cpp:292
#25 0x00007f03a9ae0bb9 in Nepomuk::ResourceManager::~ResourceManager (this=0xbe4e60, __in_chrg=<optimized out>) at ../../nepomuk/core/resourcemanager.cpp:299
#26 0x00007f03b19d2935 in QObjectPrivate::deleteChildren (this=0x6f69c0) at kernel/qobject.cpp:1908
#27 0x00007f03b19d8b9c in QObject::~QObject (this=0x7fff8d5b6b40, __in_chrg=<optimized out>) at kernel/qobject.cpp:927
#28 0x00007f03b23c444e in QApplication::~QApplication (this=0x7fff8d5b6b40, __in_chrg=<optimized out>) at kernel/qapplication.cpp:1103
#29 0x000000000040369f in main (argc=1, argv=0x7fff8d5b7168) at ../../../kontact/src/main.cpp:221

Reported using DrKonqi