[Akonadi] [Bug 376385] New: Restarting Akonadi while it fails to deliver content to frontend makes it crash

Dennis Schridde bugzilla_noreply at kde.org
Sun Feb 12 08:40:35 GMT 2017


https://bugs.kde.org/show_bug.cgi?id=376385

            Bug ID: 376385
           Summary: Restarting Akonadi while it fails to deliver content
                    to frontend makes it crash
           Product: Akonadi
           Version: unspecified
          Platform: Gentoo Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: server
          Assignee: kdepim-bugs at kde.org
          Reporter: devurandom at gmx.net
  Target Milestone: ---

Application: akonadiserver (5.4.2)

Qt Version: 5.7.1
Frameworks Version: 5.30.0
Operating System: Linux 4.9.9-gentoo x86_64
Distribution: "Gentoo Base System release 2.3"

-- Information about the crash:
- What I was doing when the application crashed:

I ran `akonadictl restart` to resolve a server hang that might be related to
bug #338658.

- Unusual behavior I noticed:

Using KMail, I noticed that KMail seems to be unable to exchange information
with Akonadi. At first, messages did not get marked as read. When I switched to
other folders, the rotating "loading" icon appeared for them in the folder
tree, but their content never appeared and the icon never stopped spinning.
Also, "Check Mail" did not sync with the IMAP server of this account. The sync
progress bar for other accounts appears, but for this particular account it
does not. Syncing only this particular account (from the "Check Mail" sub menu)
has no effect at all.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Akonadi Server (akonadiserver), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4babed3f00 (LWP 5018))]

Thread 18 (Thread 0x7f4b77904700 (LWP 16418)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=30000,
this=0x7f4b940284c0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7f4b940284c0) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x7f4b94027dc0,
mutex=mutex at entry=0x7f4b940035a0, time=30000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab2877f2 in QThreadPoolThread::run (this=0x7f4b94027db0) at
thread/qthreadpool.cpp:133
#5  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4b94027db0) at
thread/qthread_unix.cpp:368
#6  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#7  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7f4b3b7fe700 (LWP 16417)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=30000,
this=0x7f4b9401cdd0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7f4b9401cdd0) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x7f4b9401cc10,
mutex=mutex at entry=0x7f4b940035a0, time=30000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab2877f2 in QThreadPoolThread::run (this=0x7f4b9401cc00) at
thread/qthreadpool.cpp:133
#5  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4b9401cc00) at
thread/qthread_unix.cpp:368
#6  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#7  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7f4b750ff700 (LWP 16416)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=30000,
this=0x7f4b9401d690) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7f4b9401d690) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x7f4b9401d4d0,
mutex=mutex at entry=0x7f4b940035a0, time=30000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab2877f2 in QThreadPoolThread::run (this=0x7f4b9401d4c0) at
thread/qthreadpool.cpp:133
#5  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4b9401d4c0) at
thread/qthread_unix.cpp:368
#6  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#7  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7f4b3bfff700 (LWP 16415)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=30000,
this=0x7f4b9401d210) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7f4b9401d210) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x7f4b9401d050,
mutex=mutex at entry=0x7f4b940035a0, time=30000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab2877f2 in QThreadPoolThread::run (this=0x7f4b9401d040) at
thread/qthreadpool.cpp:133
#5  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4b9401d040) at
thread/qthread_unix.cpp:368
#6  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#7  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7f4b38ff9700 (LWP 16414)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=30000,
this=0x7f4b94028980) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7f4b94028980) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x7f4b940287c0,
mutex=mutex at entry=0x7f4b940035a0, time=30000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab2877f2 in QThreadPoolThread::run (this=0x7f4b940287b0) at
thread/qthreadpool.cpp:133
#5  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4b940287b0) at
thread/qthread_unix.cpp:368
#6  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#7  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7f4b0cff9700 (LWP 7593)):
#0  0x00007f4baa91a18d in poll () from /lib64/libc.so.6
#1  0x00007f4ba7c6e88c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b4004d1c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b0cff8dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#6  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x1775df0) at
thread/qthread_unix.cpp:368
#7  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#8  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7f4b0d7fa700 (LWP 6415)):
#0  0x00007f4ba7cb2a6c in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6d8b5 in g_main_context_acquire () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e745 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b3405cc30, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b0d7f9dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#7  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x1772da0) at
thread/qthread_unix.cpp:368
#8  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#9  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7f4b0dffb700 (LWP 6413)):
#0  0x00007f4ba7cb2a60 in g_mutex_lock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6e41e in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b2c06c7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b0dff9d70,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#6  0x0000000000578751 in Akonadi::Server::ItemRetriever::exec
(this=this at entry=0x7f4b0dffa3d0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/storage/itemretriever.cpp:355
#7  0x000000000053ec79 in Akonadi::Server::FetchHelper::fetchItems
(this=this at entry=0x7f4b0dffa5a0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/handler/fetchhelper.cpp:337
#8  0x000000000053bdab in Akonadi::Server::Fetch::parseStream
(this=0x7f4b2d60b6d0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/handler/fetch.cpp:47
#9  0x000000000042c20b in Akonadi::Server::Connection::slotNewData
(this=0x17a3110) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/connection.cpp:247
#10 0x00007f4bab448e71 in QtPrivate::QSlotObjectBase::call (a=0x7f4b0dffa940,
r=0x17a3110, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#11 QMetaObject::activate (sender=0x7f4b2c06e8e0, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3723
#12 0x00007f4bab448b4f in QMetaObject::activate
(sender=sender at entry=0x7f4b2c06f7d8, signalOffset=<optimized out>,
local_signal_index=local_signal_index at entry=0, argv=argv at entry=0x0) at
kernel/qobject.cpp:3740
#13 0x00007f4bab4494a7 in QMetaObject::activate
(sender=sender at entry=0x7f4b2c06f7d8, m=m at entry=0x7f4bab658ea0
<QIODevice::staticMetaObject>, local_signal_index=local_signal_index at entry=0,
argv=argv at entry=0x0) at kernel/qobject.cpp:3602
#14 0x00007f4bab4b23c0 in QIODevice::readyRead (this=this at entry=0x7f4b2c06f7d8)
at .moc/moc_qiodevice.cpp:184
#15 0x00007f4babfb4465 in QAbstractSocketPrivate::emitReadyRead
(this=this at entry=0x7f4b2c071c40) at socket/qabstractsocket.cpp:1303
#16 0x00007f4babfb4520 in QAbstractSocketPrivate::canReadNotification
(this=0x7f4b2c071c40) at socket/qabstractsocket.cpp:724
#17 0x00007f4babfbeda9 in QReadNotifier::event (this=<optimized out>,
e=<optimized out>) at socket/qnativesocketengine.cpp:1209
#18 0x00007f4bab4233e2 in doNotify (receiver=<optimized out>, event=<optimized
out>) at kernel/qcoreapplication.cpp:1063
#19 0x00007f4bab423519 in QCoreApplication::notifyInternal2
(receiver=0x7f4b2c043f60, event=event at entry=0x7f4b0dffaba0) at
kernel/qcoreapplication.cpp:988
#20 0x00007f4bab46f1ae in QCoreApplication::sendEvent (event=0x7f4b0dffaba0,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#21 socketNotifierSourceDispatch (source=0x7f4b2c026650) at
kernel/qeventdispatcher_glib.cpp:106
#22 0x00007f4ba7c6e68e in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#23 0x00007f4ba7c6e8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#24 0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#25 0x00007f4bab46e8a7 in QEventDispatcherGlib::processEvents
(this=0x7f4b2c06c7e0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#26 0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b0dffadc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#27 0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#28 0x00007f4bab28a60b in QThreadPrivate::start (arg=0x178e6b0) at
thread/qthread_unix.cpp:368
#29 0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#30 0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7f4b197fa700 (LWP 6276)):
[KCrash Handler]
#6  QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data
(this=0x8) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:141
#7  qGetPtrHelper<QScopedPointer<QObjectData> > (p=...) at
../../include/QtCore/../../src/corelib/global/qglobal.h:980
#8  QIODevice::d_func (this=0x0) at
../../include/QtCore/../../src/corelib/io/qiodevice.h:178
#9  QIODevice::write (this=0x0, data=data at entry=0x7f4b197f8cec "\227",
maxSize=maxSize at entry=1) at io/qiodevice.cpp:1596
#10 0x00007f4bab7b9400 in Akonadi::Protocol::DataStream::operator<< <unsigned
char> (this=0x7f4b197f8d70, val=151 '\227') at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/datastream_p_p.h:91
#11 0x00007f4bab7bc4bf in Akonadi::Protocol::CommandPrivate::serialize
(stream=..., this=0x7f4b10055390) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/protocol.cpp:266
#12 Akonadi::Protocol::ResponsePrivate::serialize (stream=...,
this=0x7f4b10055390) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/protocol.cpp:425
#13 Akonadi::Protocol::FetchItemsResponsePrivate::serialize
(this=0x7f4b10055390, stream=...) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/protocol.cpp:3344
#14 0x00007f4bab7a3f3c in Akonadi::Protocol::operator<< (command=...,
stream=...) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/protocol.cpp:383
#15 Akonadi::Protocol::serialize (device=<optimized out>, command=...) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/private/protocol.cpp:636
#16 0x000000000042a99b in Akonadi::Server::Connection::sendResponse
(this=0x178edb0, tag=82, response=...) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/connection.cpp:404
#17 0x000000000054009e in Akonadi::Server::FetchHelper::fetchItems
(this=this at entry=0x7f4b197f95a0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/handler/fetchhelper.cpp:607
#18 0x000000000053bdab in Akonadi::Server::Fetch::parseStream
(this=0x7f4b100109d0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/handler/fetch.cpp:47
#19 0x000000000042c20b in Akonadi::Server::Connection::slotNewData
(this=0x178edb0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/connection.cpp:247
#20 0x00007f4bab448e71 in QtPrivate::QSlotObjectBase::call (a=0x7f4b197f9940,
r=0x178edb0, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#21 QMetaObject::activate (sender=0x7f4b100446a0, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3723
#22 0x00007f4bab448b4f in QMetaObject::activate
(sender=sender at entry=0x7f4b1006f768, signalOffset=<optimized out>,
local_signal_index=local_signal_index at entry=0, argv=argv at entry=0x0) at
kernel/qobject.cpp:3740
#23 0x00007f4bab4494a7 in QMetaObject::activate
(sender=sender at entry=0x7f4b1006f768, m=m at entry=0x7f4bab658ea0
<QIODevice::staticMetaObject>, local_signal_index=local_signal_index at entry=0,
argv=argv at entry=0x0) at kernel/qobject.cpp:3602
#24 0x00007f4bab4b23c0 in QIODevice::readyRead (this=this at entry=0x7f4b1006f768)
at .moc/moc_qiodevice.cpp:184
#25 0x00007f4babfb4465 in QAbstractSocketPrivate::emitReadyRead
(this=this at entry=0x7f4b10071400) at socket/qabstractsocket.cpp:1303
#26 0x00007f4babfb4520 in QAbstractSocketPrivate::canReadNotification
(this=0x7f4b10071400) at socket/qabstractsocket.cpp:724
#27 0x00007f4babfbeda9 in QReadNotifier::event (this=<optimized out>,
e=<optimized out>) at socket/qnativesocketengine.cpp:1209
#28 0x00007f4bab4233e2 in doNotify (receiver=<optimized out>, event=<optimized
out>) at kernel/qcoreapplication.cpp:1063
#29 0x00007f4bab423519 in QCoreApplication::notifyInternal2
(receiver=0x7f4b10070bb0, event=event at entry=0x7f4b197f9ba0) at
kernel/qcoreapplication.cpp:988
#30 0x00007f4bab46f1ae in QCoreApplication::sendEvent (event=0x7f4b197f9ba0,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#31 socketNotifierSourceDispatch (source=0x7f4b1006f440) at
kernel/qeventdispatcher_glib.cpp:106
#32 0x00007f4ba7c6e68e in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#33 0x00007f4ba7c6e8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#34 0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#35 0x00007f4bab46e8a7 in QEventDispatcherGlib::processEvents
(this=0x7f4b10055460, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#36 0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b197f9dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#37 0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#38 0x00007f4bab28a60b in QThreadPrivate::start (arg=0x16f4040) at
thread/qthread_unix.cpp:368
#39 0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#40 0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7f4b98a66700 (LWP 6059)):
#0  0x00007f4baa91a18d in poll () from /lib64/libc.so.6
#1  0x00007f4ba7c6e88c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b98a65dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#6  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x1732cf0) at
thread/qthread_unix.cpp:368
#7  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#8  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7f4b99267700 (LWP 6058)):
#0  0x00007f4ba9c09f1f in pthread_cond_wait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac4a in QWaitConditionPrivate::wait
(time=18446744073709551615, this=0x173abc0) at
thread/qwaitcondition_unix.cpp:143
#2  QWaitCondition::wait (this=this at entry=0x173a6e8,
mutex=mutex at entry=0x173a6f0, time=time at entry=18446744073709551615) at
thread/qwaitcondition_unix.cpp:215
#3  0x000000000043e0c3 in Akonadi::Server::SearchTaskManager::searchLoop
(this=0x173a6c0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/search/searchtaskmanager.cpp:222
#4  0x00007f4bab454d26 in QtPrivate::QSlotObjectBase::call (a=0x7f4b99266a20,
r=<optimized out>, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:101
#5  QSingleShotTimer::timerEvent (this=0x16f4c90) at kernel/qtimer.cpp:317
#6  0x00007f4bab449c4b in QObject::event (this=0x16f4c90, e=<optimized out>) at
kernel/qobject.cpp:1285
#7  0x00007f4bab4233e2 in doNotify (receiver=<optimized out>, event=<optimized
out>) at kernel/qcoreapplication.cpp:1063
#8  0x00007f4bab423519 in QCoreApplication::notifyInternal2
(receiver=0x16f4c90, event=event at entry=0x7f4b99266b70) at
kernel/qcoreapplication.cpp:988
#9  0x00007f4bab46def3 in QCoreApplication::sendEvent (event=0x7f4b99266b70,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#10 QTimerInfoList::activateTimers (this=0x7f4b7c0030d0) at
kernel/qtimerinfo_unix.cpp:644
#11 0x00007f4bab46e464 in timerSourceDispatch (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:182
#12 0x00007f4ba7c6e68e in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#13 0x00007f4ba7c6e8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#14 0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#15 0x00007f4bab46e8a7 in QEventDispatcherGlib::processEvents
(this=0x7f4b7c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#16 0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b99266dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#17 0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#18 0x00007f4bab28a60b in QThreadPrivate::start (arg=0x173a7a0) at
thread/qthread_unix.cpp:368
#19 0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#20 0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7f4b99a68700 (LWP 6057)):
#0  0x00007f4baa91a18d in poll () from /lib64/libc.so.6
#1  0x00007f4ba7c6e88c in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b880008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b99a67dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#6  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x173a1f0) at
thread/qthread_unix.cpp:368
#7  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#8  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7f4b9a269700 (LWP 6056)):
#0  0x00007f4ba7cb2a6c in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6ddff in g_main_context_prepare () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e7bb in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b840008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b9a268dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#7  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x1739ce0) at
thread/qthread_unix.cpp:368
#8  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#9  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7f4b9aa6a700 (LWP 6055)):
#0  0x00007f4ba7cb2a6c in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6ddff in g_main_context_prepare () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e7bb in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b900008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b9aa69dc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#7  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x1739190) at
thread/qthread_unix.cpp:368
#8  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#9  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7f4b9b26b700 (LWP 6054)):
#0  0x00007f4ba7cb2a6c in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6e244 in g_main_context_check () from
/usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e830 in ?? () from /usr/lib64/libglib-2.0.so.0
#3  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#4  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b8c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b9b26adc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#6  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#7  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x16fe2b0) at
thread/qthread_unix.cpp:368
#8  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#9  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7f4b9ba6c700 (LWP 6053)):
#0  0x00007f4ba7cb2a6c in g_mutex_unlock () from /usr/lib64/libglib-2.0.so.0
#1  0x00007f4ba7c6e73d in ?? () from /usr/lib64/libglib-2.0.so.0
#2  0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#3  0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4b9ba6bdc0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#5  0x00007f4bab286494 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:507
#6  0x00007f4bab28a60b in QThreadPrivate::start (arg=0x16f4ec0) at
thread/qthread_unix.cpp:368
#7  0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#8  0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7f4ba0d74700 (LWP 5056)):
#0  0x00007f4bab283059 in
std::__atomic_base<QMutexData*>::compare_exchange_strong (__m2=<optimized out>,
__m1=std::memory_order_release, __p2=0x0, __p1=@0x7f4ba0d73b38: 0x1,
this=0x16f0e50) at
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/include/g++-v5/bits/atomic_base.h:752
#1  std::atomic<QMutexData*>::compare_exchange_strong
(__m=std::memory_order_release, __p2=0x0, __p1=@0x7f4ba0d73b38: 0x1,
this=0x16f0e50) at
/usr/lib/gcc/x86_64-pc-linux-gnu/5.4.0/include/g++-v5/atomic:475
#2  QAtomicOps<QMutexData*>::testAndSetRelease<QMutexData*>
(currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1,
_q_value=...) at
../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:299
#3  QBasicAtomicPointer<QMutexData>::testAndSetRelease (currentValue=<synthetic
pointer>: <optimized out>, newValue=0x0, expectedValue=<optimized out>,
this=0x16f0e50) at
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:261
#4  QBasicMutex::fastTryUnlock (current=<synthetic pointer>: <optimized out>,
this=0x16f0e50) at thread/qmutex.h:92
#5  QMutex::unlock (this=this at entry=0x16f0e50) at thread/qmutex.cpp:277
#6  0x00007f4bab46e7ad in QMutexLocker::unlock (this=<synthetic pointer>) at
../../include/QtCore/../../src/corelib/thread/qmutex.h:147
#7  QMutexLocker::~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized
out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:141
#8  QThreadData::canWaitLocked (this=0x16f0e20) at
../../include/QtCore/5.7.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:253
#9  postEventSourcePrepare (s=0x7f4b9c0012d0, timeout=0x7f4ba0d73bc4) at
kernel/qeventdispatcher_glib.cpp:259
#10 0x00007f4ba7c6de0c in g_main_context_prepare () from
/usr/lib64/libglib-2.0.so.0
#11 0x00007f4ba7c6e7bb in ?? () from /usr/lib64/libglib-2.0.so.0
#12 0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#13 0x00007f4bab46e8cb in QEventDispatcherGlib::processEvents
(this=0x7f4b9c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#14 0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7f4ba0d73d90,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#15 0x00007f4bab286494 in QThread::exec (this=this at entry=0x7f4bab72bec0
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:507
#16 0x00007f4bab6ba635 in QDBusConnectionManager::run (this=0x7f4bab72bec0
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
#17 0x00007f4bab28a60b in QThreadPrivate::start (arg=0x7f4bab72bec0 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:368
#18 0x00007f4ba9c0434c in start_thread () from /lib64/libpthread.so.0
#19 0x00007f4baa92339f in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f4babed3f00 (LWP 5018)):
#0  0x00007f4ba9c0a2c8 in pthread_cond_timedwait () from /lib64/libpthread.so.0
#1  0x00007f4bab28ac28 in QWaitConditionPrivate::wait_relative (time=10000,
this=0x178ece0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=10000, this=0x178ece0) at
thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this at entry=0x178ecc0,
mutex=mutex at entry=0x178eca0, time=time at entry=10000) at
thread/qwaitcondition_unix.cpp:215
#4  0x00007f4bab28a236 in QThread::wait (this=<optimized out>,
time=time at entry=10000) at thread/qthread_unix.cpp:698
#5  0x000000000052417a in Akonadi::Server::AkThread::quitThread
(this=this at entry=0x178edb0) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/akthread.cpp:62
#6  0x000000000042b5ec in Akonadi::Server::Connection::~Connection
(this=0x178edb0, __in_chrg=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/connection.cpp:149
#7  0x000000000042b731 in Akonadi::Server::Connection::~Connection
(this=0x178edb0, __in_chrg=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/connection.cpp:154
#8  0x000000000042884e in
qDeleteAll<QTypedArrayData<Akonadi::Server::Connection*>::const_iterator>
(end=..., begin=...) at /usr/include/qt5/QtCore/qalgorithms.h:323
#9  qDeleteAll<QVector<Akonadi::Server::Connection*> > (c=...) at
/usr/include/qt5/QtCore/qalgorithms.h:331
#10 Akonadi::Server::AkonadiServer::quit (this=0x16f2870) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/akonadi.cpp:304
#11 0x0000000000515a66 in ServerAdaptor::quit (this=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2_build/src/server/serveradaptor.cpp:39
#12 ServerAdaptor::qt_static_metacall (_o=<optimized out>, _c=<optimized out>,
_id=<optimized out>, _a=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2_build/src/server/serveradaptor.moc:86
#13 0x0000000000515be3 in ServerAdaptor::qt_metacall (this=0x17238b0,
_c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff54eadc80) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2_build/src/server/serveradaptor.moc:120
#14 0x00007f4bab6c5f5e in QDBusConnectionPrivate::deliverCall
(this=this at entry=0x7f4b9c0032f0, object=object at entry=0x17238b0, msg=...,
metaTypes=..., slotIdx=<optimized out>) at qdbusintegrator.cpp:995
#15 0x00007f4bab6ca171 in QDBusConnectionPrivate::activateCall
(this=this at entry=0x7f4b9c0032f0, object=0x17238b0, flags=flags at entry=273,
msg=...) at qdbusintegrator.cpp:898
#16 0x00007f4bab6caa62 in QDBusConnectionPrivate::activateObject
(this=0x7f4b9c0032f0, node=..., msg=..., pathStartPos=<optimized out>) at
qdbusintegrator.cpp:1488
#17 0x00007f4bab6cd17e in QDBusActivateObjectEvent::placeMetaCall
(this=0x7f4b9c020520) at qdbusintegrator.cpp:1608
#18 0x00007f4bab449c91 in QObject::event (this=0x16f2870, e=<optimized out>) at
kernel/qobject.cpp:1263
#19 0x00007f4bab4233e2 in doNotify (receiver=<optimized out>, event=<optimized
out>) at kernel/qcoreapplication.cpp:1063
#20 0x00007f4bab423519 in QCoreApplication::notifyInternal2
(receiver=0x16f2870, event=event at entry=0x7f4b9c020520) at
kernel/qcoreapplication.cpp:988
#21 0x00007f4bab425af1 in QCoreApplication::sendEvent (event=0x7f4b9c020520,
receiver=<optimized out>) at kernel/qcoreapplication.h:231
#22 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver at entry=0x0,
event_type=event_type at entry=0, data=0x16ed550) at
kernel/qcoreapplication.cpp:1649
#23 0x00007f4bab425f58 in QCoreApplication::sendPostedEvents
(receiver=receiver at entry=0x0, event_type=event_type at entry=0) at
kernel/qcoreapplication.cpp:1503
#24 0x00007f4bab46e833 in postEventSourceDispatch (s=0x16ef650) at
kernel/qeventdispatcher_glib.cpp:276
#25 0x00007f4ba7c6e68e in g_main_context_dispatch () from
/usr/lib64/libglib-2.0.so.0
#26 0x00007f4ba7c6e8f0 in ?? () from /usr/lib64/libglib-2.0.so.0
#27 0x00007f4ba7c6e99c in g_main_context_iteration () from
/usr/lib64/libglib-2.0.so.0
#28 0x00007f4bab46e8a7 in QEventDispatcherGlib::processEvents (this=0x16ef700,
flags=...) at kernel/qeventdispatcher_glib.cpp:423
#29 0x00007f4bab42251a in QEventLoop::exec (this=this at entry=0x7fff54eae2a0,
flags=..., flags at entry=...) at kernel/qeventloop.cpp:212
#30 0x00007f4bab429d44 in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1261
#31 0x0000000000580f3d in AkApplicationBase::exec
(this=this at entry=0x7fff54eae400) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/shared/akapplication.cpp:125
#32 0x0000000000423f92 in main (argc=1, argv=<optimized out>) at
/var/tmp/portage/kde-apps/akonadi-16.12.2/work/akonadi-16.12.2/src/server/main.cpp:81

Reported using DrKonqi

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