Application: kontact (4.9.4)
KDE Platform Version: 4.9.4
Qt Version: 4.8.3
Operating System: Linux 3.5.0-25-generic x86_64
Distribution: Ubuntu 12.10

-- Information about the crash:
I wasn't interacting with it at the time, so this is an odd bug.  Perhaps there was some fetch running that crashed?  Or some interaction with kalarm?

-- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
__lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
[Current thread is 1 (Thread 0x7f0bbc3d37c0 (LWP 7379))]

Thread 4 (Thread 0x7f0bb4913700 (LWP 7382)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f0bcd94ab2d in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007f0bcd94ac39 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007f0bc8e94e9a in start_thread (arg=0x7f0bb4913700) at pthread_create.c:308
#4  0x00007f0bce675ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f0bb4012700 (LWP 7383)):
[KCrash Handler]
#6  _int_free (av=0x7f0bce93a740 <main_arena>, p=0x1864740, have_lock=0) at malloc.c:4016
#7  0x00007f0bced093b8 in QString::free (d=0x1864750) at tools/qstring.cpp:1235
#8  0x00007f0bcb7e4949 in ~QString (this=0x8c56a40, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qstring.h:880
#9  QDBusMessagePrivate::~QDBusMessagePrivate (this=0x8c56a20, __in_chrg=<optimized out>) at qdbusmessage.cpp:72
#10 0x00007f0bcb7e4a5f in QDBusMessage::~QDBusMessage (this=0x7f0bce93a740 <main_arena>, __in_chrg=<optimized out>) at qdbusmessage.cpp:537
#11 0x00007f0bcb7e077d in ~QDBusCallDeliveryEvent (this=0x878ea50, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#12 QDBusCallDeliveryEvent::~QDBusCallDeliveryEvent (this=0x878ea50, __in_chrg=<optimized out>) at qdbusintegrator_p.h:93
#13 0x00007f0bcedc03fa in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x18187f0) at kernel/qcoreapplication.cpp:1555
#14 0x00007f0bcedeaa63 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#15 postEventSourceDispatch (s=0x7f0bac0012d0) at kernel/qeventdispatcher_glib.cpp:279
#16 0x00007f0bc89c5ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f0bc89c5de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f0bc89c5ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f0bcedeac16 in QEventDispatcherGlib::processEvents (this=0x7f0bac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#20 0x00007f0bcedbb2bf in QEventLoop::processEvents (this=this@entry=0x7f0bb4011dc0, flags=...) at kernel/qeventloop.cpp:149
#21 0x00007f0bcedbb548 in QEventLoop::exec (this=0x7f0bb4011dc0, flags=...) at kernel/qeventloop.cpp:204
#22 0x00007f0bcecbcb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#23 0x00007f0bcecbfaec in QThreadPrivate::start (arg=0x1818680) at thread/qthread_unix.cpp:338
#24 0x00007f0bc8e94e9a in start_thread (arg=0x7f0bb4012700) at pthread_create.c:308
#25 0x00007f0bce675ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#26 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f0b65f75700 (LWP 7415)):
#0  0x00007f0bc8a02ba5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0bc8a02e49 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0bc89c5769 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0bc89c5cf9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f0bc89c5ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f0bcedeac16 in QEventDispatcherGlib::processEvents (this=0x7f0b580008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007f0bcedbb2bf in QEventLoop::processEvents (this=this@entry=0x7f0b65f74d90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f0bcedbb548 in QEventLoop::exec (this=0x7f0b65f74d90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f0bcecbcb10 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007f0bced9b9af in QInotifyFileSystemWatcherEngine::run (this=0x1e9c870) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x00007f0bcecbfaec in QThreadPrivate::start (arg=0x1e9c870) at thread/qthread_unix.cpp:338
#11 0x00007f0bc8e94e9a in start_thread (arg=0x7f0b65f75700) at pthread_create.c:308
#12 0x00007f0bce675ccd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f0bbc3d37c0 (LWP 7379)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1  0x00007f0bce607231 in _L_lock_10656 () at malloc.c:5220
#2  0x00007f0bce604fb7 in __GI___libc_malloc (bytes=139688687150912) at malloc.c:2921
#3  0x00007f0bce5f4cad in __GI_open_memstream (bufloc=0x7fff3c61e7b0, sizeloc=0x7fff3c61e7c0) at memstream.c:79
#4  0x00007f0bce67169b in __GI___vsyslog_chk (pri=11, flag=-1, fmt=0x7f0bce700028 "*** glibc detected *** %s: %s: 0x%s ***\n", ap=0x7fff3c61f018) at ../misc/syslog.c:169
#5  0x00007f0bce5f62df in __libc_message (do_abort=2, fmt=0x7f0bce700028 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:169
#6  0x00007f0bce600b96 in malloc_printerr (action=3, str=0x7f0bce7003a8 "malloc(): memory corruption (fast)", ptr=<optimized out>) at malloc.c:5018
#7  0x00007f0bce6033f8 in _int_malloc (av=0x7f0bce93a740 <main_arena>, bytes=68) at malloc.c:3481
#8  0x00007f0bce604fc5 in __GI___libc_malloc (bytes=68) at malloc.c:2924
#9  0x00007f0bced04865 in QString::QString (this=0x7fff3c61f2f0, size=18) at tools/qstring.cpp:1141
#10 0x00007f0bcedf3ae1 in QUtf8::convertToUnicode (chars=<optimized out>, len=<optimized out>, state=0x0) at codecs/qutfcodec.cpp:183
#11 0x00007f0bced06bfb in QString::fromUtf8 (str=<optimized out>, size=<optimized out>) at tools/qstring.cpp:4020
#12 0x00007f0bcb7e4e78 in QDBusMessagePrivate::fromDBusMessage (dmsg=0x6e21220, capabilities=...) at qdbusmessage.cpp:237
#13 0x00007f0bcb7dde8e in qDBusSignalFilter (connection=<optimized out>, message=<optimized out>, data=0x189eb90) at qdbusintegrator.cpp:543
#14 0x00007f0bc427fbde in dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3
#15 0x00007f0bcb7d1b49 in q_dbus_connection_dispatch (connection=<optimized out>) at qdbus_symbols_p.h:115
#16 QDBusConnectionPrivate::doDispatch (this=0x189eb90) at qdbusintegrator.cpp:1129
#17 0x00007f0bcb7d5d75 in QDBusConnectionPrivate::socketRead (this=0x189eb90, fd=10) at qdbusintegrator.cpp:1149
#18 0x00007f0bcedd1f5f in QMetaObject::activate (sender=0x189f5c0, m=<optimized out>, local_signal_index=<optimized out>, argv=0x7fff3c61f6c0) at kernel/qobject.cpp:3547
#19 0x00007f0bcee1c79e in QSocketNotifier::activated (this=<optimized out>, _t1=10) at .moc/release-shared/moc_qsocketnotifier.cpp:103
#20 0x00007f0bcedd97eb in QSocketNotifier::event (this=0x189f5c0, e=0x7fff3c61fce0) at kernel/qsocketnotifier.cpp:317
#21 0x00007f0bcf79de9c in QApplicationPrivate::notify_helper (this=this@entry=0x167d340, receiver=receiver@entry=0x189f5c0, e=e@entry=0x7fff3c61fce0) at kernel/qapplication.cpp:4562
#22 0x00007f0bcf7a230a in QApplication::notify (this=0x7fff3c6200b0, receiver=0x189f5c0, e=0x7fff3c61fce0) at kernel/qapplication.cpp:4423
#23 0x00007f0bd04a61d6 in KApplication::notify (this=0x7fff3c6200b0, receiver=0x189f5c0, event=0x7fff3c61fce0) at ../../kdeui/kernel/kapplication.cpp:311
#24 0x00007f0bcedbc56e in QCoreApplication::notifyInternal (this=0x7fff3c6200b0, receiver=0x189f5c0, event=0x7fff3c61fce0) at kernel/qcoreapplication.cpp:915
#25 0x00007f0bcedea3f8 in sendEvent (event=0x7fff3c61fce0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#26 socketNotifierSourceDispatch (source=0x167d160) at kernel/qeventdispatcher_glib.cpp:110
#27 0x00007f0bc89c5ab5 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f0bc89c5de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f0bc89c5ea4 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f0bcedeabf6 in QEventDispatcherGlib::processEvents (this=0x163fc10, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#31 0x00007f0bcf842c1e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#32 0x00007f0bcedbb2bf in QEventLoop::processEvents (this=this@entry=0x7fff3c61ff20, flags=...) at kernel/qeventloop.cpp:149
#33 0x00007f0bcedbb548 in QEventLoop::exec (this=0x7fff3c61ff20, flags=...) at kernel/qeventloop.cpp:204
#34 0x00007f0bcedc0708 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1187
#35 0x0000000000403339 in main (argc=1, argv=0x7fff3c6201f8) at ../../../kontact/src/main.cpp:219

This bug may be a duplicate of or related to bug 308146.

Possible duplicates by query: bug 308146, bug 300614, bug 296180, bug 257295, bug 243262.

Reported using DrKonqi