Application: kontact (4.10.2)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.0-19-generic x86_64
Distribution: Ubuntu 13.04

-- Information about the crash:
- What I was doing when the application crashed:
While trying to access an inbox from a GMail IMAP account, all IMAP folders became unresponsive; at the end KMail 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 0x7fa4608d3800 (LWP 3959))]

Thread 5 (Thread 0x7fa440768700 (LWP 3960)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa45d051585 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fa45d0515d9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fa457aa7f8e in start_thread (arg=0x7fa440768700) at pthread_create.c:311
#4  0x00007fa45de49e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 4 (Thread 0x7fa3fff55700 (LWP 3961)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fa45cd97a09 in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#2  0x00007fa45d07fcee in ?? () from /usr/lib/x86_64-linux-gnu/libQtWebKit.so.4
#3  0x00007fa457aa7f8e in start_thread (arg=0x7fa3fff55700) at pthread_create.c:311
#4  0x00007fa45de49e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 3 (Thread 0x7fa3f2735700 (LWP 3965)):
#0  0x00007fa457aab056 in __pthread_mutex_unlock_usercnt (mutex=0x7fa3ec000a60, decr=1) at pthread_mutex_unlock.c:37
#1  0x00007fa4574245f1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4573e5188 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4573e5304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa45f26f036 in QEventDispatcherGlib::processEvents (this=0x7fa3ec0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fa45f23f38f in QEventLoop::processEvents (this=this@entry=0x7fa3f2734d50, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fa45f23f618 in QEventLoop::exec (this=this@entry=0x7fa3f2734d50, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fa45f141410 in QThread::exec (this=this@entry=0x26914f0) at thread/qthread.cpp:542
#8  0x00007fa45f220edf in QInotifyFileSystemWatcherEngine::run (this=0x26914f0) at io/qfilesystemwatcher_inotify.cpp:256
#9  0x00007fa45f143bec in QThreadPrivate::start (arg=0x26914f0) at thread/qthread_unix.cpp:338
#10 0x00007fa457aa7f8e in start_thread (arg=0x7fa3f2735700) at pthread_create.c:311
#11 0x00007fa45de49e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 2 (Thread 0x7fa3f0c45700 (LWP 3970)):
#0  0x00007fa457424359 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa4574245b9 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa4573e47d5 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa4573e50fe in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa4573e5304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa45f26f036 in QEventDispatcherGlib::processEvents (this=0x7fa3e80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fa45f23f38f in QEventLoop::processEvents (this=this@entry=0x7fa3f0c44d80, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fa45f23f618 in QEventLoop::exec (this=this@entry=0x7fa3f0c44d80, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fa45f141410 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:542
#9  0x00007fa45f143bec in QThreadPrivate::start (arg=0x2222e60) at thread/qthread_unix.cpp:338
#10 0x00007fa457aa7f8e in start_thread (arg=0x7fa3f0c45700) at pthread_create.c:311
#11 0x00007fa45de49e1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113

Thread 1 (Thread 0x7fa4608d3800 (LWP 3959)):
[KCrash Handler]
#6  QSortFilterProxyModelPrivate::updateChildrenMapping (this=this@entry=0x24f7f20, source_parent=..., parent_mapping=parent_mapping@entry=0x2c10300, orient=orient@entry=Qt::Vertical, start=start@entry=0, end=end@entry=0, delta_item_count=delta_item_count@entry=1, remove=remove@entry=true) at itemviews/qsortfilterproxymodel.cpp:948
#7  0x00007fa45eb74eb0 in source_items_removed (orient=Qt::Vertical, end=0, start=0, source_parent=..., this=<optimized out>) at itemviews/qsortfilterproxymodel.cpp:890
#8  QSortFilterProxyModelPrivate::source_items_removed (this=0x24f7f20, source_parent=..., start=0, end=<optimized out>, orient=Qt::Vertical) at itemviews/qsortfilterproxymodel.cpp:848
#9  0x00007fa45f2550ef in QMetaObject::activate (sender=sender@entry=0x226e230, m=m@entry=0x7fa45f59b5e0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=7, argv=argv@entry=0x7fff0c7b49c0) at kernel/qobject.cpp:3539
#10 0x00007fa45f2a0174 in QAbstractItemModel::rowsRemoved (this=this@entry=0x226e230, _t1=..., _t2=0, _t3=0) at .moc/release-shared/moc_qabstractitemmodel.cpp:211
#11 0x00007fa45f23b06d in QAbstractItemModel::endRemoveRows (this=0x226e230) at kernel/qabstractitemmodel.cpp:2487
#12 0x00007fa45eb73717 in QSortFilterProxyModelPrivate::remove_proxy_interval (this=this@entry=0x25ccbc0, source_to_proxy=..., proxy_to_source=..., proxy_start=<optimized out>, proxy_end=<optimized out>, proxy_parent=..., orient=orient@entry=Qt::Vertical, emit_signal=emit_signal@entry=true) at itemviews/qsortfilterproxymodel.cpp:569
#13 0x00007fa45eb774fa in QSortFilterProxyModelPrivate::remove_source_items (this=this@entry=0x25ccbc0, source_to_proxy=..., proxy_to_source=..., source_items=..., source_parent=..., orient=orient@entry=Qt::Vertical, emit_signal=emit_signal@entry=true) at itemviews/qsortfilterproxymodel.cpp:539
#14 0x00007fa45eb77d91 in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x25ccbc0, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1161
#15 0x00007fa45f248ad7 in QMetaMethod::invoke (this=this@entry=0x7fff0c7b4ea0, object=object@entry=0x226e230, connectionType=connectionType@entry=Qt::DirectConnection, returnValue=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1664
#16 0x00007fa45f24aeac in QMetaObject::invokeMethod (obj=obj@entry=0x226e230, member=member@entry=0x7fa45fde2d12 "_q_sourceDataChanged", type=type@entry=Qt::DirectConnection, ret=..., val0=..., val1=..., val2=..., val3=..., val4=..., val5=..., val6=..., val7=..., val8=..., val9=...) at kernel/qmetaobject.cpp:1179
#17 0x00007fa45fc4b0a3 in invokeMethod (val9=..., val8=..., val7=..., val6=..., val5=..., val4=..., val3=..., val2=..., val1=..., val0=..., type=Qt::DirectConnection, member=0x7fa45fde2d12 "_q_sourceDataChanged", obj=0x226e230) at /usr/include/qt4/QtCore/qobjectdefs.h:418
#18 invokeDataChanged (bottomRight=..., topLeft=..., this=<optimized out>) at ../../kdeui/itemviews/krecursivefilterproxymodel.cpp:55
#19 KRecursiveFilterProxyModelPrivate::sourceDataChanged (this=0x242c080, source_top_left=..., source_bottom_right=...) at ../../kdeui/itemviews/krecursivefilterproxymodel.cpp:131
#20 0x00007fa45f2550ef in QMetaObject::activate (sender=sender@entry=0x222ac90, m=m@entry=0x7fa45f59b5e0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff0c7b5440) at kernel/qobject.cpp:3539
#21 0x00007fa45f29ff97 in QAbstractItemModel::dataChanged (this=this@entry=0x222ac90, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#22 0x00007fa45fc48ff7 in KIdentityProxyModelPrivate::_k_sourceDataChanged (this=<optimized out>, topLeft=..., bottomRight=...) at ../../kdeui/itemviews/kidentityproxymodel.cpp:573
#23 0x00007fa45f2550ef in QMetaObject::activate (sender=sender@entry=0x222db40, m=m@entry=0x7fa45f59b5e0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff0c7b55f0) at kernel/qobject.cpp:3539
#24 0x00007fa45f29ff97 in QAbstractItemModel::dataChanged (this=this@entry=0x222db40, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#25 0x00007fa45fc48ff7 in KIdentityProxyModelPrivate::_k_sourceDataChanged (this=<optimized out>, topLeft=..., bottomRight=...) at ../../kdeui/itemviews/kidentityproxymodel.cpp:573
#26 0x00007fa45f2550ef in QMetaObject::activate (sender=sender@entry=0x244fb70, m=m@entry=0x7fa45f59b5e0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff0c7b57a0) at kernel/qobject.cpp:3539
#27 0x00007fa45f29ff97 in QAbstractItemModel::dataChanged (this=this@entry=0x244fb70, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#28 0x00007fa45eb7793c in QSortFilterProxyModelPrivate::_q_sourceDataChanged (this=0x2536b70, source_top_left=..., source_bottom_right=...) at itemviews/qsortfilterproxymodel.cpp:1210
#29 0x00007fa45f2550ef in QMetaObject::activate (sender=sender@entry=0x23e8810, m=m@entry=0x7fa45f59b5e0 <QAbstractItemModel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff0c7b5a40) at kernel/qobject.cpp:3539
#30 0x00007fa45f29ff97 in QAbstractItemModel::dataChanged (this=this@entry=0x23e8810, _t1=..., _t2=...) at .moc/release-shared/moc_qabstractitemmodel.cpp:164
#31 0x00007fa45a438f9b in Akonadi::EntityTreeModelPrivate::changeFetchState (this=<optimized out>, parent=...) at ../../akonadi/entitytreemodel_p.cpp:237
#32 0x00007fa45f25a5be in QObject::event (this=0x23e8810, e=<optimized out>) at kernel/qobject.cpp:1194
#33 0x00007fa45e5e68ec in QApplicationPrivate::notify_helper (this=this@entry=0x1fb89a0, receiver=receiver@entry=0x23e8810, e=e@entry=0x4e46210) at kernel/qapplication.cpp:4567
#34 0x00007fa45e5e925b in QApplication::notify (this=this@entry=0x7fff0c7b6510, receiver=receiver@entry=0x23e8810, e=e@entry=0x4e46210) at kernel/qapplication.cpp:4428
#35 0x00007fa45fc89af6 in KApplication::notify (this=0x7fff0c7b6510, receiver=0x23e8810, event=0x4e46210) at ../../kdeui/kernel/kapplication.cpp:311
#36 0x00007fa45f24063e in QCoreApplication::notifyInternal (this=0x7fff0c7b6510, receiver=receiver@entry=0x23e8810, event=event@entry=0x4e46210) at kernel/qcoreapplication.cpp:946
#37 0x00007fa45f244171 in sendEvent (event=0x4e46210, receiver=0x23e8810) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#38 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1f3a6a0) at kernel/qcoreapplication.cpp:1570
#39 0x00007fa45f2444a3 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1463
#40 0x00007fa45f26ee83 in sendPostedEvents () at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:236
#41 postEventSourceDispatch (s=0x1fc4cd0) at kernel/qeventdispatcher_glib.cpp:279
#42 0x00007fa4573e4f05 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#43 0x00007fa4573e5248 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007fa4573e5304 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007fa45f26f016 in QEventDispatcherGlib::processEvents (this=0x1fb8f50, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#46 0x00007fa45e68c1ae in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#47 0x00007fa45f23f38f in QEventLoop::processEvents (this=this@entry=0x7fff0c7b6380, flags=...) at kernel/qeventloop.cpp:149
#48 0x00007fa45f23f618 in QEventLoop::exec (this=this@entry=0x7fff0c7b6380, flags=...) at kernel/qeventloop.cpp:204
#49 0x00007fa45f244cf6 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1218
#50 0x00007fa45e5e4ffc in QApplication::exec () at kernel/qapplication.cpp:3828
#51 0x00000000004033a9 in main (argc=1, argv=0x7fff0c7b6658) at ../../../kontact/src/main.cpp:219

Possible duplicates by query: bug 318760, bug 317145, bug 311779, bug 309147, bug 306051.

Reported using DrKonqi