Bug 444534

Application: akonadiserver (5.14.2 (20.04.2))

Qt Version: 5.12.7
Frameworks Version: 5.71.0
Operating System: Linux 5.3.18-lp152.95-preempt x86_64
Windowing system: X11
Distribution: "openSUSE Leap 15.2"

-- Information about the crash:
- What I was doing when the application crashed:
For some reason, KMail shows a large number of unread mails on root of IMAP account (Gmail). It happened without any obvious reason, and nothing was changed in account settings. Each time when I click to see the list of unread messages, Akonadi crashes. Restarting Akonadi, Kontact or laptop doesn't change the behavior.

- Custom settings of the application:
Just Gmail account.

The crash can be reproduced every time.

-- Backtrace:
Application: Akonadi Server (akonadiserver), signal: Segmentation fault
[KCrash Handler]
#4  0x00007fe0c311c1ec in QString::operator=(QString const&) () from /usr/lib64/libQt5Core.so.5
#5  0x00005626e3327855 in ?? ()
#6  0x00007fe0c329ef4f in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#7  0x00005626e3378764 in ?? ()
#8  0x00005626e332afee in ?? ()
#9  0x00007fe0c329ef4f in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQt5Core.so.5
#10 0x00007fe0c39dbd5f in QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) () from /usr/lib64/libQt5DBus.so.5
#11 0x00007fe0c329f9e2 in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5
#12 0x00007fe0c326f311 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5
#13 0x00007fe0c3271ee7 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5
#14 0x00007fe0c32ccd93 in ?? () from /usr/lib64/libQt5Core.so.5
#15 0x00007fe0bee3d624 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#16 0x00007fe0bee3d9c0 in ?? () from /usr/lib64/libglib-2.0.so.0
#17 0x00007fe0bee3da4c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#18 0x00007fe0c32cc3af in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#19 0x00007fe0c326d57a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#20 0x00007fe0c309290a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#21 0x00007fe0c30940b2 in ?? () from /usr/lib64/libQt5Core.so.5
#22 0x00007fe0c143b539 in start_thread () from /lib64/libpthread.so.0
#23 0x00007fe0c2713ecf in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fe0b3fff700 (LWP 28139) "CacheCleaner-Th"):
#1  0x00007fe0bee3d939 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe0bee3da4c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe0c32cc3cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fe0c326d57a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007fe0c309290a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007fe0c30940b2 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007fe0c143b539 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fe0c2713ecf in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fe0b8d5c700 (LWP 28138) "NotificationMan"):
#1  0x00007fe0bee3d939 in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe0bee3da4c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe0c32cc3cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#4  0x00007fe0c326d57a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007fe0c309290a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#6  0x00007fe0c30940b2 in ?? () from /usr/lib64/libQt5Core.so.5
#7  0x00007fe0c143b539 in start_thread () from /lib64/libpthread.so.0
#8  0x00007fe0c2713ecf in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fe0b9a3d700 (LWP 28135) "QDBusConnection"):
#1  0x00007fe0bee3d371 in g_main_context_check () from /usr/lib64/libglib-2.0.so.0
#2  0x00007fe0bee3d8e0 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007fe0bee3da4c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#4  0x00007fe0c32cc3cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#5  0x00007fe0c326d57a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5
#6  0x00007fe0c309290a in QThread::exec() () from /usr/lib64/libQt5Core.so.5
#7  0x00007fe0c3981e65 in ?? () from /usr/lib64/libQt5DBus.so.5
#8  0x00007fe0c30940b2 in ?? () from /usr/lib64/libQt5Core.so.5
#9  0x00007fe0c143b539 in start_thread () from /lib64/libpthread.so.0
#10 0x00007fe0c2713ecf in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fe0c4af8900 (LWP 28134) "akonadiserver"):
#1  0x00007fe0c309b176 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () from /usr/lib64/libQt5Core.so.5
#2  0x00007fe0c309b4d6 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib64/libQt5Core.so.5
#3  0x00007fe0c3093c8e in QThread::wait(unsigned long) () from /usr/lib64/libQt5Core.so.5
#4  0x00005626e3380062 in ?? ()
#5  0x00005626e31f78ac in ?? ()
#6  0x00005626e31f7a49 in ?? ()
#7  0x00005626e31f1a6f in ?? ()
#8  0x00005626e31ec74f in ?? ()
#9  0x00007fe0c263c34a in __libc_start_main () from /lib64/libc.so.6
#10 0x00005626e31ef0ba in ?? ()
[Inferior 1 (process 28134) detached]

Possible duplicates by query: bug 444446, bug 444421, bug 444411, bug 444315, bug 444002.

Reported using DrKonqi