Application: kontact (4.4.5)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-23-generic i686
Distribution: Ubuntu 10.04 LTS

-- Information about the crash:
I am almost certain this is a duplicate of the prior bug.  Hopefully this additional backtrace will assist.

This on Kubuntu 10.04 with 4.4.5 installed from backports.

Cheers!


The crash can be reproduced some of the time.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[Current thread is 1 (Thread 0xb7896990 (LWP 4362))]

Thread 2 (Thread 0xb1f68b70 (LWP 4367)):
#0  0x05ce2300 in __pthread_mutex_unlock_usercnt () from /lib/tls/i686/cmov/libpthread.so.0
#1  0x00708be6 in pthread_mutex_unlock () from /lib/tls/i686/cmov/libc.so.6
#2  0x01609e5c in g_main_context_query () from /lib/libglib-2.0.so.0
#3  0x0160ef34 in ?? () from /lib/libglib-2.0.so.0
#4  0x0160f4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#5  0x01a8de6f in QEventDispatcherGlib::processEvents (this=0x8652780, flags=...) at kernel/qeventdispatcher_glib.cpp:414
#6  0x01a60759 in QEventLoop::processEvents (this=0xb1f68270, flags=) at kernel/qeventloop.cpp:149
#7  0x01a60baa in QEventLoop::exec (this=0xb1f68270, flags=...) at kernel/qeventloop.cpp:201
#8  0x01961fc9 in QThread::exec (this=0x882d2c0) at thread/qthread.cpp:487
#9  0x01a401db in QInotifyFileSystemWatcherEngine::run (this=0x882d2c0) at io/qfilesystemwatcher_inotify.cpp:248
#10 0x0196497e in QThreadPrivate::start (arg=0x882d2c0) at thread/qthread_unix.cpp:248
#11 0x05cde96e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0x006fba4e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7896990 (LWP 4362)):
[KCrash Handler]
#6  QBasicAtomicInt::deref (this=0x87cba0c, other=...) at ../../include/QtCore/../../src/corelib/arch/qatomic_i386.h:132
#7  QString::operator= (this=0x87cba0c, other=...) at tools/qstring.cpp:1281
#8  0xb4a7cefa in RecipientItem::setRecipientType (this=0x897a9b8) at ../../kmail/recipientspicker.cpp:184
#9  RecipientsPicker::updateList (this=0x897a9b8) at ../../kmail/recipientspicker.cpp:703
#10 0xb4a804a8 in RecipientsPicker::setRecipients (this=0x897a9b8, recipients=...) at ../../kmail/recipientspicker.cpp:644
#11 0xb4a76165 in SideWidget::pickRecipient (this=0x89834f8) at ../../kmail/recipientseditor.cpp:852
#12 0xb4a77993 in SideWidget::qt_metacall (this=0x89834f8, _c=QMetaObject::InvokeMetaMethod, _id=32, _a=0xbfe7d738) at ./recipientseditor.moc:528
#13 0x01a6747a in QMetaObject::metacall (object=0x89834f8, cl=134537840, idx=32, argv=0xbfe7d738) at kernel/qmetaobject.cpp:237
#14 0x01a75fbb in QMetaObject::activate (sender=0x89f0ce0, m=0x44d18c4, local_signal_index=2, argv=0xbfe7d738) at kernel/qobject.cpp:3295
#15 0x042c2139 in QAbstractButton::clicked (this=0x89f0ce0, _t1=false) at .moc/release-shared/moc_qabstractbutton.cpp:206
#16 0x03fa0029 in QAbstractButtonPrivate::emitClicked (this=0x89ca0d0) at widgets/qabstractbutton.cpp:546
#17 0x03fa0e74 in QAbstractButtonPrivate::click (this=0x89ca0d0) at widgets/qabstractbutton.cpp:539
#18 0x03fa112e in QAbstractButton::mouseReleaseEvent (this=0x89f0ce0, e=0xbfe7de70) at widgets/qabstractbutton.cpp:1121
#19 0x03bf2158 in QWidget::event (this=0x89f0ce0, event=0xbfe7de70) at kernel/qwidget.cpp:8044
#20 0x03f9fece in QAbstractButton::event (this=0x89f0ce0, e=0x8fda901) at widgets/qabstractbutton.cpp:1080
#21 0x0404a802 in QPushButton::event (this=0x89f0ce0, e=0xbfe7de70) at widgets/qpushbutton.cpp:679
#22 0x03b93e8c in QApplicationPrivate::notify_helper (this=0x80ffaf8, receiver=0x89f0ce0, e=0xbfe7de70) at kernel/qapplication.cpp:4302
#23 0x03b9b3a7 in QApplication::notify (this=0xbfe7e724, receiver=0x89f0ce0, e=0xbfe7de70) at kernel/qapplication.cpp:3867
#24 0x00a5140a in KApplication::notify (this=0xbfe7e724, receiver=0x89f0ce0, event=0xbfe7de70) at ../../kdeui/kernel/kapplication.cpp:302
#25 0x01a6213b in QCoreApplication::notifyInternal (this=0xbfe7e724, receiver=0x89f0ce0, event=0xbfe7de70) at kernel/qcoreapplication.cpp:726
#26 0x03b9a302 in QCoreApplication::sendEvent (receiver=0x89f0ce0, event=0xbfe7de70, alienWidget=0x0, nativeWidget=0x89f0ce0, buttonDown=0x44da058, lastMouseReceiver=..., spontaneous=true)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 QApplicationPrivate::sendMouseEvent (receiver=0x89f0ce0, event=0xbfe7de70, alienWidget=0x0, nativeWidget=0x89f0ce0, buttonDown=0x44da058, lastMouseReceiver=..., spontaneous=true)
    at kernel/qapplication.cpp:2967
#28 0x03c25d58 in QETWidget::translateMouseEvent (this=0x89f0ce0, event=0xbfe7e38c) at kernel/qapplication_x11.cpp:4380
#29 0x03c251e1 in QApplication::x11ProcessEvent (this=0xbfe7e724, event=0xbfe7e38c) at kernel/qapplication_x11.cpp:3391
#30 0x03c542ea in x11EventSourceDispatch (s=0x8103a68, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146
#31 0x0160b5e5 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#32 0x0160f2d8 in ?? () from /lib/libglib-2.0.so.0
#33 0x0160f4b8 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#34 0x01a8de35 in QEventDispatcherGlib::processEvents (this=0x80e0070, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#35 0x03c53e15 in QGuiEventDispatcherGlib::processEvents (this=0x80e0070, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#36 0x01a60759 in QEventLoop::processEvents (this=0xbfe7e684, flags=) at kernel/qeventloop.cpp:149
#37 0x01a60baa in QEventLoop::exec (this=0xbfe7e684, flags=...) at kernel/qeventloop.cpp:201
#38 0x01a65e3f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#39 0x03b93f27 in QApplication::exec () at kernel/qapplication.cpp:3581
#40 0x0804b472 in main (argc=1, argv=0xbfe7e944) at ../../../kontact/src/main.cpp:224

This bug may be a duplicate of or related to bug 240030.

Possible duplicates by query: bug 240030, bug 237698, bug 218753.

Reported using DrKonqi