Version:           4.7 (using KDE 4.7.0) 
OS:                Linux

I have the problem that dIMAP ressources are not updated (INBOX works sometimes but subfolders especially shared folders are never synchronized).
I therefore tried to remove and readd one such account

Reproducible: Couldn't Reproduce

Steps to Reproduce:
could not reproduce

Actual Results:  
I could continue work with the readded dIMAP ressource. 
I noticed two changes:

1. shared folder namespace got recognized correctly (After the migration to Akonadi the shared folders where in the personal namespace with a "user/" 
prefix.

2. Syncronisation now seems to finally work. (I guess that the migration code has some issues)

Expected Results:  
do not crash 

Application: Akonadi Resource (akonadi_imap_resource), signal: Aborted
[Current thread is 1 (Thread 0xb4a02710 (LWP 5410))]

Thread 4 (Thread 0xb285eb70 (LWP 5487)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb589de53 in __lll_lock_wait_private () from /lib/libc.so.6
#2  0xb58302fb in _L_lock_10372 () from /lib/libc.so.6
#3  0xb582ea66 in free () from /lib/libc.so.6
#4  0xb72e775b in qFree (ptr=0x81c8218) at global/qmalloc.cpp:60
#5  0xb73fc114 in QMetaCallEvent::~QMetaCallEvent (this=0x84a3370, __in_chrg=<value optimized out>) at kernel/qobject.cpp:523
#6  0xb73fc182 in QMetaCallEvent::~QMetaCallEvent (this=0x84a3370, __in_chrg=<value optimized out>) at kernel/qobject.cpp:529
#7  0xb73ee6a4 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x8205420) at kernel/qcoreapplication.cpp:1388
#8  0xb73ee7ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#9  0xb7418f94 in sendPostedEvents (s=0x8453080) at kernel/qcoreapplication.h:220
#10 postEventSourceDispatch (s=0x8453080) at kernel/qeventdispatcher_glib.cpp:277
#11 0xb55d9509 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#12 0xb55d9d10 in ?? () from /lib/libglib-2.0.so.0
#13 0xb55d9fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#14 0xb741911b in QEventDispatcherGlib::processEvents (this=0x83ad6f8, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#15 0xb73e9bed in QEventLoop::processEvents (this=0xb285e2d0, flags=...) at kernel/qeventloop.cpp:149
#16 0xb73e9e19 in QEventLoop::exec (this=0xb285e2d0, flags=...) at kernel/qeventloop.cpp:201
#17 0xb72eaec9 in QThread::exec (this=0x82117c0) at thread/qthread.cpp:492
#18 0xb66578b0 in KIMAP::SessionThread::run (this=0x82117c0) at /usr/src/debug/kdepimlibs-4.7.0/kimap/sessionthread.cpp:169
#19 0xb72edb13 in QThreadPrivate::start (arg=0x82117c0) at thread/qthread_unix.cpp:320
#20 0xb574ab05 in start_thread () from /lib/libpthread.so.0
#21 0xb588fd5e in clone () from /lib/libc.so.6

Thread 3 (Thread 0xb30a5b70 (LWP 5500)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb589de53 in __lll_lock_wait_private () from /lib/libc.so.6
#2  0xb58302fb in _L_lock_10372 () from /lib/libc.so.6
#3  0xb582ea66 in free () from /lib/libc.so.6
#4  0xb59f8b0f in operator delete(void*) () from /usr/lib/libstdc++.so.6
#5  0xb7419562 in QEventDispatcherGlib::unregisterSocketNotifier (this=0x835e1d8, notifier=0x841b328) at kernel/qeventdispatcher_glib.cpp:503
#6  0xb7407358 in QSocketNotifier::setEnabled (this=0x841b328, enable=false) at kernel/qsocketnotifier.cpp:298
#7  0xb7418b7e in socketNotifierSourceCheck (source=0x84a2400) at kernel/qeventdispatcher_glib.cpp:92
#8  0xb55d9180 in g_main_context_check () from /lib/libglib-2.0.so.0
#9  0xb55d9ac8 in ?? () from /lib/libglib-2.0.so.0
#10 0xb55d9fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#11 0xb7419167 in QEventDispatcherGlib::processEvents (this=0x835e1d8, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#12 0xb73e9bed in QEventLoop::processEvents (this=0xb30a52d0, flags=...) at kernel/qeventloop.cpp:149
#13 0xb73e9e19 in QEventLoop::exec (this=0xb30a52d0, flags=...) at kernel/qeventloop.cpp:201
#14 0xb72eaec9 in QThread::exec (this=0x8389630) at thread/qthread.cpp:492
#15 0xb66578b0 in KIMAP::SessionThread::run (this=0x8389630) at /usr/src/debug/kdepimlibs-4.7.0/kimap/sessionthread.cpp:169
#16 0xb72edb13 in QThreadPrivate::start (arg=0x8389630) at thread/qthread_unix.cpp:320
#17 0xb574ab05 in start_thread () from /lib/libpthread.so.0
#18 0xb588fd5e in clone () from /lib/libc.so.6

Thread 2 (Thread 0xb159cb70 (LWP 5501)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb589de53 in __lll_lock_wait_private () from /lib/libc.so.6
#2  0xb58302fb in _L_lock_10372 () from /lib/libc.so.6
#3  0xb582ea66 in free () from /lib/libc.so.6
#4  0xb59f8b0f in operator delete(void*) () from /usr/lib/libstdc++.so.6
#5  0xb7419562 in QEventDispatcherGlib::unregisterSocketNotifier (this=0x85285e0, notifier=0x8325de0) at kernel/qeventdispatcher_glib.cpp:503
#6  0xb7407358 in QSocketNotifier::setEnabled (this=0x8325de0, enable=false) at kernel/qsocketnotifier.cpp:298
#7  0xb7418b7e in socketNotifierSourceCheck (source=0x835be90) at kernel/qeventdispatcher_glib.cpp:92
#8  0xb55d9180 in g_main_context_check () from /lib/libglib-2.0.so.0
#9  0xb55d9ac8 in ?? () from /lib/libglib-2.0.so.0
#10 0xb55d9fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#11 0xb7419167 in QEventDispatcherGlib::processEvents (this=0x85285e0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#12 0xb73e9bed in QEventLoop::processEvents (this=0xb159c2d0, flags=...) at kernel/qeventloop.cpp:149
#13 0xb73e9e19 in QEventLoop::exec (this=0xb159c2d0, flags=...) at kernel/qeventloop.cpp:201
#14 0xb72eaec9 in QThread::exec (this=0x83f0cf0) at thread/qthread.cpp:492
#15 0xb66578b0 in KIMAP::SessionThread::run (this=0x83f0cf0) at /usr/src/debug/kdepimlibs-4.7.0/kimap/sessionthread.cpp:169
#16 0xb72edb13 in QThreadPrivate::start (arg=0x83f0cf0) at thread/qthread_unix.cpp:320
#17 0xb574ab05 in start_thread () from /lib/libpthread.so.0
#18 0xb588fd5e in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb4a02710 (LWP 5410)):
[KCrash Handler]
#7  0xffffe424 in __kernel_vsyscall ()
#8  0xb57e78df in raise () from /lib/libc.so.6
#9  0xb57e9220 in abort () from /lib/libc.so.6
#10 0xb5823e07 in __libc_message () from /lib/libc.so.6
#11 0xb5829e2b in malloc_printerr () from /lib/libc.so.6
#12 0xb582abab in _int_free () from /lib/libc.so.6
#13 0xb582ea6d in free () from /lib/libc.so.6
#14 0xb59f8b0f in operator delete(void*) () from /usr/lib/libstdc++.so.6
#15 0x0809ade2 in ?? ()
#16 0x0809b027 in ?? ()
#17 0x0809c538 in ?? ()
#18 0xb73f11fd in QMetaObject::metacall (object=0x81c7de8, cl=QMetaObject::InvokeMetaMethod, idx=18, argv=0xbffbdc1c) at kernel/qmetaobject.cpp:237
#19 0xb740066c in QMetaObject::activate (sender=0x85a3ff0, m=0x80c1ca0, local_signal_index=1, argv=0x0) at kernel/qobject.cpp:3287
#20 0xb665cc35 in KIMAP::Session::connectionLost (this=0x85a3ff0) at /usr/src/debug/kdepimlibs-4.7.0/build/kimap/session.moc:135
#21 0xb666f703 in KIMAP::SessionPrivate::socketDisconnected (this=0x8213580) at /usr/src/debug/kdepimlibs-4.7.0/kimap/session.cpp:362
#22 0xb6676837 in KIMAP::Session::qt_metacall (this=0x85a3ff0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x8473b90) at /usr/src/debug/kdepimlibs-4.7.0/build/kimap/session.moc:115
#23 0xb73f11fd in QMetaObject::metacall (object=0x85a3ff0, cl=QMetaObject::InvokeMetaMethod, idx=13, argv=0x8473b90) at kernel/qmetaobject.cpp:237
#24 0xb73fbce5 in QMetaCallEvent::placeMetaCall (this=0x8448ad0, object=0x85a3ff0) at kernel/qobject.cpp:535
#25 0xb73fff5f in QObject::event (this=0x85a3ff0, e=0x8448ad0) at kernel/qobject.cpp:1226
#26 0xb690cc74 in QApplicationPrivate::notify_helper (this=0x80e3f58, receiver=0x85a3ff0, e=0x8448ad0) at kernel/qapplication.cpp:4462
#27 0xb6915a17 in QApplication::notify (this=0xbffbf3c0, receiver=0x85a3ff0, e=0x8448ad0) at kernel/qapplication.cpp:3862
#28 0xb5f05b01 in KApplication::notify (this=0xbffbf3c0, receiver=0x85a3ff0, event=0x8448ad0) at /usr/src/debug/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#29 0xb73ea90e in QCoreApplication::notifyInternal (this=0xbffbf3c0, receiver=0x85a3ff0, event=0x8448ad0) at kernel/qcoreapplication.cpp:731
#30 0xb73ee69c in sendEvent (receiver=0x0, event_type=0, data=0x80ca548) at kernel/qcoreapplication.h:215
#31 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x80ca548) at kernel/qcoreapplication.cpp:1372
#32 0xb73ee7ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#33 0xb7418f94 in sendPostedEvents (s=0x80e6100) at kernel/qcoreapplication.h:220
#34 postEventSourceDispatch (s=0x80e6100) at kernel/qeventdispatcher_glib.cpp:277
#35 0xb55d9509 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#36 0xb55d9d10 in ?? () from /lib/libglib-2.0.so.0
#37 0xb55d9fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#38 0xb741911b in QEventDispatcherGlib::processEvents (this=0x80ca2b0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#39 0xb69c3a3a in QGuiEventDispatcherGlib::processEvents (this=0x80ca2b0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#40 0xb73e9bed in QEventLoop::processEvents (this=0xbffbe440, flags=...) at kernel/qeventloop.cpp:149
#41 0xb73e9e19 in QEventLoop::exec (this=0xbffbe440, flags=...) at kernel/qeventloop.cpp:201
#42 0xb6e4fdad in QDialog::exec (this=0x8521cb8) at dialogs/qdialog.cpp:552
#43 0xb5e5f0fc in KMessageBox::createKMessageBox (dialog=0x8521cb8, icon=..., text=..., strlist=..., ask=..., checkboxReturn=0xbffbe7ef, options=..., details=..., notifyType=QMessageBox::Warning) at /usr/src/debug/kdelibs-4.7.0/kdeui/dialogs/kmessagebox.cpp:344
#44 0xb5e5fab5 in KMessageBox::createKMessageBox (dialog=0x8521cb8, icon=QMessageBox::Warning, text=..., strlist=..., ask=..., checkboxReturn=0xbffbe7ef, options=..., details=...) at /usr/src/debug/kdelibs-4.7.0/kdeui/dialogs/kmessagebox.cpp:159
#45 0xb5e60f47 in KMessageBox::warningYesNoCancelListWId (parent_id=0, text=..., strlist=..., caption=..., buttonYes_=..., buttonNo_=..., buttonCancel_=..., dontAskAgainName=..., options=...) at /usr/src/debug/kdelibs-4.7.0/kdeui/dialogs/kmessagebox.cpp:802
#46 0xb5e61193 in KMessageBox::warningYesNoCancelList (parent=0x0, text=..., strlist=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontAskAgainName=..., options=...) at /usr/src/debug/kdelibs-4.7.0/kdeui/dialogs/kmessagebox.cpp:760
#47 0xb5e61220 in KMessageBox::warningYesNoCancel (parent=0x0, text=..., caption=..., buttonYes=..., buttonNo=..., buttonCancel=..., dontAskAgainName=..., options=...) at /usr/src/debug/kdelibs-4.7.0/kdeui/dialogs/kmessagebox.cpp:735
#48 0xb6551854 in KIO::SslUi::askIgnoreSslErrors (uiData=..., storedRules=KIO::SslUi::RecallAndStoreRules) at /usr/src/debug/kdelibs-4.7.0/kio/kssl/sslui.cpp:82
#49 0xb665c684 in KIMAP::SessionPrivate::handleSslError (this=0x8213580, errorData=...) at /usr/src/debug/kdepimlibs-4.7.0/kimap/session.cpp:118
#50 0xb66766d6 in KIMAP::Session::qt_metacall (this=0x85a3ff0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x8521c58) at /usr/src/debug/kdepimlibs-4.7.0/build/kimap/session.moc:117
#51 0xb73f11fd in QMetaObject::metacall (object=0x85a3ff0, cl=QMetaObject::InvokeMetaMethod, idx=15, argv=0x8521c58) at kernel/qmetaobject.cpp:237
#52 0xb73fbce5 in QMetaCallEvent::placeMetaCall (this=0x8526948, object=0x85a3ff0) at kernel/qobject.cpp:535
#53 0xb73fff5f in QObject::event (this=0x85a3ff0, e=0x8526948) at kernel/qobject.cpp:1226
#54 0xb690cc74 in QApplicationPrivate::notify_helper (this=0x80e3f58, receiver=0x85a3ff0, e=0x8526948) at kernel/qapplication.cpp:4462
#55 0xb6915a17 in QApplication::notify (this=0xbffbf3c0, receiver=0x85a3ff0, e=0x8526948) at kernel/qapplication.cpp:3862
#56 0xb5f05b01 in KApplication::notify (this=0xbffbf3c0, receiver=0x85a3ff0, event=0x8526948) at /usr/src/debug/kdelibs-4.7.0/kdeui/kernel/kapplication.cpp:311
#57 0xb73ea90e in QCoreApplication::notifyInternal (this=0xbffbf3c0, receiver=0x85a3ff0, event=0x8526948) at kernel/qcoreapplication.cpp:731
#58 0xb73ee69c in sendEvent (receiver=0x0, event_type=0, data=0x80ca548) at kernel/qcoreapplication.h:215
#59 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x80ca548) at kernel/qcoreapplication.cpp:1372
#60 0xb73ee7ec in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1265
#61 0xb7418f94 in sendPostedEvents (s=0x80e6100) at kernel/qcoreapplication.h:220
#62 postEventSourceDispatch (s=0x80e6100) at kernel/qeventdispatcher_glib.cpp:277
#63 0xb55d9509 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#64 0xb55d9d10 in ?? () from /lib/libglib-2.0.so.0
#65 0xb55d9fce in g_main_context_iteration () from /lib/libglib-2.0.so.0
#66 0xb741911b in QEventDispatcherGlib::processEvents (this=0x80ca2b0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
#67 0xb69c3a3a in QGuiEventDispatcherGlib::processEvents (this=0x80ca2b0, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#68 0xb73e9bed in QEventLoop::processEvents (this=0xbffbf324, flags=...) at kernel/qeventloop.cpp:149
#69 0xb73e9e19 in QEventLoop::exec (this=0xbffbf324, flags=...) at kernel/qeventloop.cpp:201
#70 0xb73ee8c0 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#71 0xb690a9c4 in QApplication::exec () at kernel/qapplication.cpp:3736
#72 0xb760fedf in Akonadi::ResourceBase::init (r=0x81af488) at /usr/src/debug/kdepimlibs-4.7.0/akonadi/resourcebase.cpp:393
#73 0x0805c903 in _start ()