[Akonadi] [Bug 329805] New: After disabling all "local subscriptions" and restarting kmail akonadi_imap_resource always crashes

[squan at web.de]

https://bugs.kde.org/show_bug.cgi?id=329805

            Bug ID: 329805
           Summary: After disabling all "local subscriptions" and
                    restarting kmail akonadi_imap_resource always crashes
    Classification: Unclassified
           Product: Akonadi
           Version: 4.12
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: IMAP resource
          Assignee: chrigi_1 at fastmail.fm
          Reporter: squan at web.de
                CC: kdepim-bugs at kde.org, vkrause at kde.org

Application: akonadi_imap_resource (4.12)
KDE Platform Version: 4.12.0
Qt Version: 4.8.5
Operating System: Linux 3.11.6-4-desktop x86_64
Distribution: "openSUSE 13.1 (Bottle) (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:
1) Disabled several "local subscriptions" of an IMAP account in kmail
Result:
 -  All mail folders of this mail account disappeared from the kmail tree view.
 - The "server subscription" list became inaccessible
2) Restarted kmail 
Result:
 - akonadi_imap_resource continuously crashes
3) akonadi_ctl restart does not resolve the problem, but reports
plasma-desktop(9415)/libakonadi Akonadi::SessionPrivate::socketError: Socket
error occurred: "QLocalSocket: Remote closed" 
on startup (before "KCrash: Application 'akonadi_imap_resource' crashing")

As a result _all_ my IMAP accounts are inaccessible now.

The crash can be reproduced every time.

-- Backtrace:
Application: inchron vom Typ IMAP-E-Mail-Server (akonadi_imap_resource),
signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f82edecf880 (LWP 15845))]

Thread 2 (Thread 0x7f82d9de5700 (LWP 15890)):
#0  0x00007f82e85e4ffa in ?? () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f82e85e52b9 in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f82e85a54bd in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f82e85a570c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f82ed2e3d76 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib64/libQtCore.so.4
#5  0x00007f82ed2b5d0f in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#6  0x00007f82ed2b6005 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib64/libQtCore.so.4
#7  0x00007f82ed1b4fef in QThread::exec() () from /usr/lib64/libQtCore.so.4
#8  0x00007f82ed1b768f in ?? () from /usr/lib64/libQtCore.so.4
#9  0x00007f82e910b0db in start_thread () from /lib64/libpthread.so.0
#10 0x00007f82e987890d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f82edecf880 (LWP 15845)):
[KCrash Handler]
#6  QSharedDataPointer (o=..., this=0x7fffa3d70020) at
/usr/include/QtCore/qshareddata.h:93
#7  assignEntityPrivate (one=..., other=...) at
/usr/src/debug/kdepimlibs-4.12.0/akonadi/entity.cpp:49
#8  0x00007f82ed91a3f5 in Akonadi::Entity::Entity (this=0x7fffa3d70080,
other=...) at /usr/src/debug/kdepimlibs-4.12.0/akonadi/entity.cpp:55
#9  0x000000000041dd64 in _start ()

Possible duplicates by query: bug 325911, bug 323883, bug 323115, bug 322413,
bug 320611.

Reported using DrKonqi

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