Application: kontact (4.9.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-23-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
I wasn't actually using Kontact when it crashed.  Perhaps it was fetching mail?

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f15905667c0 (LWP 13367))]

Thread 5 (Thread 0x7f1588aa6700 (LWP 13368)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f15a1addb2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f15a1addc39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f159d027e9a in start_thread (arg=0x7f1588aa6700) at pthread_create.c:308
#4  0x00007f15a2808ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f15881a5700 (LWP 13369)):
[KCrash Handler]
#6  0x00007f15a274b425 in __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#7  0x00007f15a274eb8b in __GI_abort () at abort.c:91
#8  0x00007f15a278939e in __libc_message (do_abort=2, fmt=0x7f15a2893028 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
#9  0x00007f15a2793b96 in malloc_printerr (action=3, str=0x7f15a288f94b "invalid fastbin entry (free)", ptr=<optimized out>) at malloc.c:5018
#10 0x00007f15a2e9c3b8 in QString::free (d=0xfb19f0) at tools/qstring.cpp:1235
#11 0x00007f159f977949 in ~QString (this=0x6e599e0, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:880
#12 QDBusMessagePrivate::~QDBusMessagePrivate (this=0x6e599c0, __in_chrg=<optimized out>) at qdbusmessage.cpp:72
#13 0x00007f159f977a5f in QDBusMessage::~QDBusMessage (this=0x3437, __in_chrg=<optimized out>) at qdbusmessage.cpp:537
#14 0x00007f159f97377d in ~QDBusCallDeliveryEvent (this=0xb6ae3f0, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#15 QDBusCallDeliveryEvent::~QDBusCallDeliveryEvent (this=0xb6ae3f0, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#16 0x00007f15a2f533fa in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xfb1430) at kernel/qcoreapplication.cpp:1555
#17 0x00007f15a2f7da63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#18 postEventSourceDispatch (s=0x7f15800012d0) at kernel/qeventdispatcher_glib.cpp:279
#19 0x00007f159cb58ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f159cb58de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f159cb58ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f15a2f7dc16 in QEventDispatcherGlib::processEvents (this=0x7f15800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#23 0x00007f15a2f4e2bf in QEventLoop::processEvents (this=this@entry=0x7f15881a4dc0, flags=...) at kernel/qeventloop.cpp:149
#24 0x00007f15a2f4e548 in QEventLoop::exec (this=0x7f15881a4dc0, flags=...) at kernel/qeventloop.cpp:204
#25 0x00007f15a2e4fb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#26 0x00007f15a2e52aec in QThreadPrivate::start (arg=0xfb12a0) at thread/qthread_unix.cpp:338
#27 0x00007f159d027e9a in start_thread (arg=0x7f15881a5700) at pthread_create.c:308
#28 0x00007f15a2808ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#29 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f153aa30700 (LWP 13374)):
#0  0x00007f159d029f69 in __pthread_mutex_lock (mutex=0x7f1534000a60) at pthread_mutex_lock.c:92
#1  0x00007f159cb95e21 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f159cb58d3d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f159cb58ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f15a2f7dc16 in QEventDispatcherGlib::processEvents (this=0x7f15340008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007f15a2f4e2bf in QEventLoop::processEvents (this=this@entry=0x7f153aa2fd90, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007f15a2f4e548 in QEventLoop::exec (this=0x7f153aa2fd90, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f15a2e4fb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007f15a2f2e9af in QInotifyFileSystemWatcherEngine::run (this=0x16467b0) at io/qfilesystemwatcher_inotify.cpp:248
#9  0x00007f15a2e52aec in QThreadPrivate::start (arg=0x16467b0) at thread/qthread_unix.cpp:338
#10 0x00007f159d027e9a in start_thread (arg=0x7f153aa30700) at pthread_create.c:308
#11 0x00007f15a2808ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f1527734700 (LWP 13405)):
#0  __pthread_mutex_lock (mutex=0x7f151c000a60) at pthread_mutex_lock.c:87
#1  0x00007f159cb95e21 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f159cb58623 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f159cb58cab in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f159cb58ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f15a2f7dc16 in QEventDispatcherGlib::processEvents (this=0x7f151c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f15a2f4e2bf in QEventLoop::processEvents (this=this@entry=0x7f1527733dc0, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f15a2f4e548 in QEventLoop::exec (this=0x7f1527733dc0, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f15a2e4fb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f15a2e52aec in QThreadPrivate::start (arg=0x20b9ad0) at thread/qthread_unix.cpp:338
#10 0x00007f159d027e9a in start_thread (arg=0x7f1527734700) at pthread_create.c:308
#11 0x00007f15a2808ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f15905667c0 (LWP 13367)):
#0  0x00007f15a27fb8cd in read () at ../sysdeps/unix/syscall-template.S:82
#1  0x00007f159cb9515f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f159cb58914 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f159cb58d22 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f159cb58ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f15a2f7dc16 in QEventDispatcherGlib::processEvents (this=0xdd6c10, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f15a39d5c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#7  0x00007f15a2f4e2bf in QEventLoop::processEvents (this=this@entry=0x7fff217c3180, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007f15a2f4e548 in QEventLoop::exec (this=0x7fff217c3180, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f15a2f53708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#10 0x0000000000403339 in main (argc=1, argv=0x7fff217c3458) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 314447, bug 314055, bug 313825, bug 313782, bug 313509.

Reported using DrKonqi