Bug 361902 - Assert when deleting mails (master branch)
Summary: Assert when deleting mails (master branch)
Status: RESOLVED FIXED
Alias: None
Product: kontact
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Compiled Sources Linux
: NOR crash
Target Milestone: ---
Assignee: kdepim bugs
URL:
Keywords: drkonqi
Depends on:
Blocks:
 
Reported: 2016-04-17 16:17 UTC by Andreas Cord-Landwehr
Modified: 2016-04-24 12:38 UTC (History)
0 users

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Latest Commit:
Version Fixed In:

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Description Andreas Cord-Landwehr 2016-04-17 16:17:21 UTC 
Application: kontact (5.2.42 pre (QtWebKit))
 (Compiled from sources)
Qt Version: 5.6.1
Frameworks Version: 5.21.0
Operating System: Linux 4.4.0-1-amd64 x86_64
Distribution: Debian GNU/Linux testing (stretch)

-- Information about the crash:
I have the following with an updated Qt 5.6 from branch 5.6, KDEPIM and Akonadi both from master branches, everything compiled during this day.

Sometimes when deleting or moving mails, I get the following assert. It does not happen with every delete though. Thas assert corresponds to a move of three mails of one thread in a threaded view (hotkey M).

-- Backtrace:
Application: Kontact (kontact), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f2cf7066900 (LWP 21047))]

Thread 26 (Thread 0x7f2ccf46c700 (LWP 21049)):
#0  0x00007f2cf1d1997a in QList<QTimerInfo*>::iterator::operator*() const (this=0x7f2ccf46b950) at ../../include/QtCore/../../src/corelib/tools/qlist.h:231
#1  0x00007f2cf1d195b2 in QList<QTimerInfo*>::first() (this=0x7f2cc8002ed0) at ../../include/QtCore/../../src/corelib/tools/qlist.h:335
#2  0x00007f2cf1d1a23d in timerSourceCheckHelper(GTimerSource*) (src=0x7f2cc8002e70) at kernel/qeventdispatcher_glib.cpp:140
#3  0x00007f2cf1d1a31b in timerSourceCheck(GSource*) (source=0x7f2cc8002e70) at kernel/qeventdispatcher_glib.cpp:167
#4  0x00007f2ce5d21d61 in g_main_context_check (context=context@entry=0x7f2cc8000990, max_priority=2147483647, fds=fds@entry=0x7f2cc8014d70, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3681
#5  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2cc8000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#6  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2cc8000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#7  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2cc80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#8  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2ccf46bc30, flags=...) at kernel/qeventloop.cpp:128
#9  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2ccf46bc30, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007f2cf1a66c86 in QThread::exec() (this=0x7f2cf71faf40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:504
#11 0x00007f2cf71616c0 in QDBusConnectionManager::run() (this=0x7f2cf71faf40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:181
#12 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x7f2cf71faf40 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:340
#13 0x00007f2ce9640454 in start_thread (arg=0x7f2ccf46c700) at pthread_create.c:334
#14 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 25 (Thread 0x7f2c87013700 (LWP 21050)):
#0  0x00007ffd6f7f09a9 in  ()
#1  0x00007ffd6f7f0cd5 in clock_gettime ()
#2  0x00007f2cf0e71a96 in __GI___clock_gettime (clock_id=1, tp=0x7f2c870128a0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f2cf1b6c668 in qt_clock_gettime(clockid_t, timespec*) (clock=1, ts=0x7f2c870128a0) at tools/qelapsedtimer_unix.cpp:105
#4  0x00007f2cf1b6c716 in do_gettime(qint64*, qint64*) (sec=0x7f2c870128d8, frac=0x7f2c870128d0) at tools/qelapsedtimer_unix.cpp:156
#5  0x00007f2cf1b6c74a in qt_gettime() () at tools/qelapsedtimer_unix.cpp:165
#6  0x00007f2cf1d17edc in QTimerInfoList::updateCurrentTime() (this=0x7f2c80002cd0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007f2cf1d18751 in QTimerInfoList::timerWait(timespec&) (this=0x7f2c80002cd0, tm=...) at kernel/qtimerinfo_unix.cpp:381
#8  0x00007f2cf1d1a13b in timerSourcePrepareHelper(GTimerSource*, gint*) (src=0x7f2c80002c70, timeout=0x7f2c87012a24) at kernel/qeventdispatcher_glib.cpp:126
#9  0x00007f2cf1d1a2e3 in timerSourcePrepare(GSource*, gint*) (source=0x7f2c80002c70, timeout=0x7f2c87012a24) at kernel/qeventdispatcher_glib.cpp:159
#10 0x00007f2ce5d218bd in g_main_context_prepare (context=context@entry=0x7f2c80000990, priority=priority@entry=0x7f2c87012ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#11 0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c80000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#12 0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c80000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#13 0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c87012c60, flags=...) at kernel/qeventloop.cpp:128
#15 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c87012c60, flags=...) at kernel/qeventloop.cpp:204
#16 0x00007f2cf1a66c86 in QThread::exec() (this=0x11d53c0) at thread/qthread.cpp:504
#17 0x00007f2cf1a66e28 in QThread::run() (this=0x11d53c0) at thread/qthread.cpp:571
#18 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x11d53c0) at thread/qthread_unix.cpp:340
#19 0x00007f2ce9640454 in start_thread (arg=0x7f2c87013700) at pthread_create.c:334
#20 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f2c84bb3700 (LWP 21051)):
#0  0x00007f2ce964604f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2cee11f432 in WTF::ThreadCondition::wait(WTF::Mutex&) (this=0x139e6f8, mutex=...) at wtf/ThreadingPthreads.cpp:378
#2  0x00007f2cede11fce in JSC::BlockAllocator::blockFreeingThreadMain() (this=0x139e4e8) at heap/BlockAllocator.cpp:139
#3  0x00007f2cede11ee0 in JSC::BlockAllocator::blockFreeingThreadStartFunc(void*) (blockAllocator=0x139e4e8) at heap/BlockAllocator.cpp:115
#4  0x00007f2cee1053fa in WTF::threadEntryPoint(void*) (contextData=0x141e590) at wtf/Threading.cpp:69
#5  0x00007f2cee11ec53 in WTF::wtfThreadEntryPoint(void*) (param=0x1400b70) at wtf/ThreadingPthreads.cpp:195
#6  0x00007f2ce9640454 in start_thread (arg=0x7f2c84bb3700) at pthread_create.c:334
#7  0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f2c7ffff700 (LWP 21052)):
#0  0x00007f2ce964604f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2cee11f432 in WTF::ThreadCondition::wait(WTF::Mutex&) (this=0x13a7220, mutex=...) at wtf/ThreadingPthreads.cpp:378
#2  0x00007f2cede1449d in JSC::GCThread::waitForNextPhase() (this=0x11ca0a0) at heap/GCThread.cpp:81
#3  0x00007f2cede14543 in JSC::GCThread::gcThreadMain() (this=0x11ca0a0) at heap/GCThread.cpp:99
#4  0x00007f2cede14646 in JSC::GCThread::gcThreadStartFunc(void*) (data=0x11ca0a0) at heap/GCThread.cpp:135
#5  0x00007f2cee1053fa in WTF::threadEntryPoint(void*) (contextData=0x141e590) at wtf/Threading.cpp:69
#6  0x00007f2cee11ec53 in WTF::wtfThreadEntryPoint(void*) (param=0x11cd970) at wtf/ThreadingPthreads.cpp:195
#7  0x00007f2ce9640454 in start_thread (arg=0x7f2c7ffff700) at pthread_create.c:334
#8  0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f2c7f7fe700 (LWP 21053)):
#0  0x00007f2ce964604f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2cee11f432 in WTF::ThreadCondition::wait(WTF::Mutex&) (this=0x13a7220, mutex=...) at wtf/ThreadingPthreads.cpp:378
#2  0x00007f2cede1449d in JSC::GCThread::waitForNextPhase() (this=0x11c3120) at heap/GCThread.cpp:81
#3  0x00007f2cede14543 in JSC::GCThread::gcThreadMain() (this=0x11c3120) at heap/GCThread.cpp:99
#4  0x00007f2cede14646 in JSC::GCThread::gcThreadStartFunc(void*) (data=0x11c3120) at heap/GCThread.cpp:135
#5  0x00007f2cee1053fa in WTF::threadEntryPoint(void*) (contextData=0x11ca1b0) at wtf/Threading.cpp:69
#6  0x00007f2cee11ec53 in WTF::wtfThreadEntryPoint(void*) (param=0x11d5aa0) at wtf/ThreadingPthreads.cpp:195
#7  0x00007f2ce9640454 in start_thread (arg=0x7f2c7f7fe700) at pthread_create.c:334
#8  0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f2c7effd700 (LWP 21054)):
#0  0x00007f2ce964604f in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2cee11f432 in WTF::ThreadCondition::wait(WTF::Mutex&) (this=0x13a7220, mutex=...) at wtf/ThreadingPthreads.cpp:378
#2  0x00007f2cede1449d in JSC::GCThread::waitForNextPhase() (this=0x144c790) at heap/GCThread.cpp:81
#3  0x00007f2cede14543 in JSC::GCThread::gcThreadMain() (this=0x144c790) at heap/GCThread.cpp:99
#4  0x00007f2cede14646 in JSC::GCThread::gcThreadStartFunc(void*) (data=0x144c790) at heap/GCThread.cpp:135
#5  0x00007f2cee1053fa in WTF::threadEntryPoint(void*) (contextData=0x141e590) at wtf/Threading.cpp:69
#6  0x00007f2cee11ec53 in WTF::wtfThreadEntryPoint(void*) (param=0x11ca7f0) at wtf/ThreadingPthreads.cpp:195
#7  0x00007f2ce9640454 in start_thread (arg=0x7f2c7effd700) at pthread_create.c:334
#8  0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f2c639a0700 (LWP 21055)):
#0  0x00007f2ce5d66a79 in g_mutex_lock (mutex=mutex@entry=0x7f2c5c000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f2ce5d21404 in g_main_context_release (context=0x7f2c5c000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3248
#2  0x00007f2ce5d222e6 in g_main_context_iterate (context=context@entry=0x7f2c5c000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3842
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c5c000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c5c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6399fc60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6399fc60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x10c0dd0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x10c0dd0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x10c0dd0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c639a0700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f2c6319f700 (LWP 21057)):
#0  0x00007f2ce5d66a94 in g_mutex_unlock (mutex=0x7f2c54000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007f2ce5d21d59 in g_main_context_check (context=context@entry=0x7f2c54000990, max_priority=2147483647, fds=fds@entry=0x7f2c54003020, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3679
#2  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c54000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c54000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6319ec60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6319ec60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x14fc4a0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x14fc4a0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x14fc4a0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c6319f700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f2c23829700 (LWP 21108)):
#0  0x00007f2ce5d66a79 in g_mutex_lock (mutex=mutex@entry=0x7f2c14000990) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f2ce5d218c9 in g_main_context_prepare (context=context@entry=0x7f2c14000990, priority=priority@entry=0x7f2c23828ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3444
#2  0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c14000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c14000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c140008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c23828c60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c23828c60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x145ffd0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x145ffd0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x145ffd0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c23829700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f2c23028700 (LWP 21109)):
#0  0x00007f2cf1d17da6 in QList<QTimerInfo*>::const_iterator::operator!=(QList<QTimerInfo*>::const_iterator const&) const (this=0x7f2c23027930, o=...) at ../../include/QtCore/../../src/corelib/tools/qlist.h:292
#1  0x00007f2cf1d187a6 in QTimerInfoList::timerWait(timespec&) (this=0x7f2c180030d0, tm=...) at kernel/qtimerinfo_unix.cpp:386
#2  0x00007f2cf1d1a13b in timerSourcePrepareHelper(GTimerSource*, gint*) (src=0x7f2c18003070, timeout=0x7f2c23027a24) at kernel/qeventdispatcher_glib.cpp:126
#3  0x00007f2cf1d1a2e3 in timerSourcePrepare(GSource*, gint*) (source=0x7f2c18003070, timeout=0x7f2c23027a24) at kernel/qeventdispatcher_glib.cpp:159
#4  0x00007f2ce5d218bd in g_main_context_prepare (context=context@entry=0x7f2c18000990, priority=priority@entry=0x7f2c23027ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#5  0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c18000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#6  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c18000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#7  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#8  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c23027c60, flags=...) at kernel/qeventloop.cpp:128
#9  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c23027c60, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007f2cf1a66c86 in QThread::exec() (this=0x18ca8f0) at thread/qthread.cpp:504
#11 0x00007f2cf1a66e28 in QThread::run() (this=0x18ca8f0) at thread/qthread.cpp:571
#12 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x18ca8f0) at thread/qthread_unix.cpp:340
#13 0x00007f2ce9640454 in start_thread (arg=0x7f2c23028700) at pthread_create.c:334
#14 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f2c0b893700 (LWP 21531)):
#0  0x00007f2cf0e57e2d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ce5d656f0 in g_wakeup_acknowledge (__nbytes=16, __buf=0x7f2c0b8929e0, __fd=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/unistd.h:44
#2  0x00007f2ce5d656f0 in g_wakeup_acknowledge (wakeup=0x7f2c04002720) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gwakeup.c:210
#3  0x00007f2ce5d21e14 in g_main_context_check (context=context@entry=0x7f2c00000990, max_priority=2147483647, fds=fds@entry=0x7f2c00002c20, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3632
#4  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c00000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#5  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c00000990, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#6  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c000008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#7  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c0b892c60, flags=...) at kernel/qeventloop.cpp:128
#8  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c0b892c60, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f2cf1a66c86 in QThread::exec() (this=0x1798cd0) at thread/qthread.cpp:504
#10 0x00007f2cf1a66e28 in QThread::run() (this=0x1798cd0) at thread/qthread.cpp:571
#11 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x1798cd0) at thread/qthread_unix.cpp:340
#12 0x00007f2ce9640454 in start_thread (arg=0x7f2c0b893700) at pthread_create.c:334
#13 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f2c6299e700 (LWP 27097)):
#0  0x00007f2cf1a638be in std::atomic<QMutexData*>::compare_exchange_strong(QMutexData*&, QMutexData*, std::memory_order) (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7f2c6299d8b0: 0x0, this=0x9f98c58) at /usr/include/c++/5/bits/atomic_base.h:752
#1  0x00007f2cf1a638be in std::atomic<QMutexData*>::compare_exchange_strong(QMutexData*&, QMutexData*, std::memory_order) (this=0x9f98c58, __p1=@0x7f2c6299d8b0: 0x0, __p2=0x1, __m=std::memory_order_acquire) at /usr/include/c++/5/atomic:475
#2  0x00007f2cf1a636cf in QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*>(std::atomic<QMutexData*>&, QMutexData*, QMutexData*, QMutexData**) (_q_value=..., expectedValue=0x0, newValue=0x1, currentValue=0x7f2c6299d948) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:158
#3  0x00007f2cf1a635aa in QBasicAtomicPointer<QMutexData>::testAndSetAcquire(QMutexData*, QMutexData*, QMutexData*&) (this=0x9f98c58, expectedValue=0x0, newValue=0x1, currentValue=@0x7f2c6299d948: 0x2b275c5e) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#4  0x00007f2cf1a6327d in QBasicMutex::fastTryLock(QMutexData*&) (this=0x9f98c58, current=@0x7f2c6299d948: 0x2b275c5e) at thread/qmutex.h:82
#5  0x00007f2cf1a62b2f in QMutex::lock() (this=0x9f98c58) at thread/qmutex.cpp:219
#6  0x00007f2cf1a4018a in QMutexLocker::QMutexLocker(QBasicMutex*) (this=0x7f2c6299d990, m=0x9f98c58) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#7  0x00007f2cf1d17500 in QThreadData::canWaitLocked() (this=0x9f98c30) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:247
#8  0x00007f2cf1d1a4bf in postEventSourcePrepare(GSource*, gint*) (s=0x7f2c50001140, timeout=0x7f2c6299d9d4) at kernel/qeventdispatcher_glib.cpp:253
#9  0x00007f2cf1d1a538 in postEventSourceCheck(GSource*) (source=0x7f2c50001140) at kernel/qeventdispatcher_glib.cpp:263
#10 0x00007f2ce5d21d61 in g_main_context_check (context=context@entry=0x7f2c50002cb0, max_priority=2147483647, fds=fds@entry=0x7f2c50002e50, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3681
#11 0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c50002cb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#12 0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c50002cb0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#13 0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c50003b50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6299dc60, flags=...) at kernel/qeventloop.cpp:128
#15 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c6299dc60, flags=...) at kernel/qeventloop.cpp:204
#16 0x00007f2cf1a66c86 in QThread::exec() (this=0x453f2d0) at thread/qthread.cpp:504
#17 0x00007f2cf1a66e28 in QThread::run() (this=0x453f2d0) at thread/qthread.cpp:571
#18 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x453f2d0) at thread/qthread_unix.cpp:340
#19 0x00007f2ce9640454 in start_thread (arg=0x7f2c6299e700) at pthread_create.c:334
#20 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f2c61f76700 (LWP 27099)):
#0  0x00007f2ce5d1f395 in g_source_iter_next (iter=iter@entry=0x7f2c61f75a30, source=source@entry=0x7f2c61f75a28) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:934
#1  0x00007f2ce5d2185b in g_main_context_prepare (context=context@entry=0x7f2c40003480, priority=priority@entry=0x7f2c61f75ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3420
#2  0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c40003480, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c40003480, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c40003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c61f75c60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c61f75c60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0xa5e7fd0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0xa5e7fd0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa5e7fd0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c61f76700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f2c61321700 (LWP 27102)):
#0  0x00007f2ce5d66a79 in g_mutex_lock (mutex=mutex@entry=0x7f2c4c0030b0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1338
#1  0x00007f2ce5d22312 in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f2c4c003250, timeout=<optimized out>, context=0x7f2c4c0030b0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4130
#2  0x00007f2ce5d22312 in g_main_context_iterate (context=context@entry=0x7f2c4c0030b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c4c0030b0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4c003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c61320c60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c61320c60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x186ba20) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x186ba20) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x186ba20) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c61321700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f2c60b20700 (LWP 27105)):
#0  0x00007f2cf0e5be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ce5d2232c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f2c44002e50, timeout=<optimized out>, context=0x7f2c44002cb0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007f2ce5d2232c in g_main_context_iterate (context=context@entry=0x7f2c44002cb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c44002cb0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c44003b50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c60b1fc60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c60b1fc60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x21b94b0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x21b94b0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x21b94b0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c60b20700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f2c4b59e700 (LWP 27106)):
#0  0x00007f2cf1a3b4a2 in QListData::isEmpty() const (this=0x7f2c38001190) at ../../include/QtCore/../../src/corelib/tools/qlist.h:108
#1  0x00007f2cf1d1952e in QList<QTimerInfo*>::isEmpty() const (this=0x7f2c38001190) at ../../include/QtCore/../../src/corelib/tools/qlist.h:185
#2  0x00007f2cf1d1a1e1 in timerSourceCheckHelper(GTimerSource*) (src=0x7f2c38001130) at kernel/qeventdispatcher_glib.cpp:136
#3  0x00007f2cf1d1a31b in timerSourceCheck(GSource*) (source=0x7f2c38001130) at kernel/qeventdispatcher_glib.cpp:167
#4  0x00007f2ce5d21d61 in g_main_context_check (context=context@entry=0x7f2c38003280, max_priority=2147483647, fds=fds@entry=0x7f2c38001330, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3681
#5  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c38003280, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#6  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c38003280, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#7  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c38003d50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#8  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4b59dc60, flags=...) at kernel/qeventloop.cpp:128
#9  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4b59dc60, flags=...) at kernel/qeventloop.cpp:204
#10 0x00007f2cf1a66c86 in QThread::exec() (this=0xa17e340) at thread/qthread.cpp:504
#11 0x00007f2cf1a66e28 in QThread::run() (this=0xa17e340) at thread/qthread.cpp:571
#12 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa17e340) at thread/qthread_unix.cpp:340
#13 0x00007f2ce9640454 in start_thread (arg=0x7f2c4b59e700) at pthread_create.c:334
#14 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f2c4ad9d700 (LWP 27110)):
#0  0x00007f2cf0e5be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ce5d2232c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f2c58002e50, timeout=<optimized out>, context=0x7f2c58002cb0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007f2ce5d2232c in g_main_context_iterate (context=context@entry=0x7f2c58002cb0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c58002cb0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c58003b50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4ad9cc60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4ad9cc60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x1993e80) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x1993e80) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x1993e80) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c4ad9d700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f2c4a59c700 (LWP 27115)):
#0  0x00007f2cf1d174fb in QThreadData::canWaitLocked() (this=0x1a0c3f0) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:247
#1  0x00007f2cf1d1a4bf in postEventSourcePrepare(GSource*, gint*) (s=0x7f2c3c0047a0, timeout=0x7f2c4a59b9d4) at kernel/qeventdispatcher_glib.cpp:253
#2  0x00007f2cf1d1a538 in postEventSourceCheck(GSource*) (source=0x7f2c3c0047a0) at kernel/qeventdispatcher_glib.cpp:263
#3  0x00007f2ce5d21d61 in g_main_context_check (context=context@entry=0x7f2c3c002700, max_priority=2147483647, fds=fds@entry=0x7f2c3c003570, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3681
#4  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c3c002700, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#5  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c3c002700, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#6  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c3c003e60, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#7  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4a59bc60, flags=...) at kernel/qeventloop.cpp:128
#8  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c4a59bc60, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007f2cf1a66c86 in QThread::exec() (this=0x19847a0) at thread/qthread.cpp:504
#10 0x00007f2cf1a66e28 in QThread::run() (this=0x19847a0) at thread/qthread.cpp:571
#11 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x19847a0) at thread/qthread_unix.cpp:340
#12 0x00007f2ce9640454 in start_thread (arg=0x7f2c4a59c700) at pthread_create.c:334
#13 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f2c48b38700 (LWP 27117)):
#0  0x00007f2cf1a62c1b in QMutex::unlock() (this=0x1b484d8) at thread/qmutex.cpp:272
#1  0x00007f2cf1a40202 in QMutexLocker::unlock() (this=0x7f2c48b37990) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#2  0x00007f2cf1a401ba in QMutexLocker::~QMutexLocker() (this=0x7f2c48b37990, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#3  0x00007f2cf1d17514 in QThreadData::canWaitLocked() (this=0x1b484b0) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:247
#4  0x00007f2cf1d1a4bf in postEventSourcePrepare(GSource*, gint*) (s=0x7f2c30001140, timeout=0x7f2c48b37a24) at kernel/qeventdispatcher_glib.cpp:253
#5  0x00007f2ce5d218bd in g_main_context_prepare (context=context@entry=0x7f2c300028b0, priority=priority@entry=0x7f2c48b37ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#6  0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c300028b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#7  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c300028b0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#8  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c30003750, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#9  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c48b37c60, flags=...) at kernel/qeventloop.cpp:128
#10 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c48b37c60, flags=...) at kernel/qeventloop.cpp:204
#11 0x00007f2cf1a66c86 in QThread::exec() (this=0xa29fa60) at thread/qthread.cpp:504
#12 0x00007f2cf1a66e28 in QThread::run() (this=0xa29fa60) at thread/qthread.cpp:571
#13 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa29fa60) at thread/qthread_unix.cpp:340
#14 0x00007f2ce9640454 in start_thread (arg=0x7f2c48b38700) at pthread_create.c:334
#15 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f2c37fff700 (LWP 27119)):
#0  0x00007f2ce5d66a94 in g_mutex_unlock (mutex=0x7f2c2c0030b0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gthread-posix.c:1350
#1  0x00007f2ce5d21eca in g_main_context_dispatch (context=context@entry=0x7f2c2c0030b0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3772
#2  0x00007f2ce5d22390 in g_main_context_iterate (context=context@entry=0x7f2c2c0030b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3840
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c2c0030b0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c2c003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c37ffec60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c37ffec60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0xa2a8380) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0xa2a8380) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa2a8380) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c37fff700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f2c364e7700 (LWP 27125)):
#0  0x00007f2cf1d1a193 in timerSourcePrepareHelper(GTimerSource*, gint*) (src=0x7f2c24001130, timeout=0x7f2c364e6a24) at kernel/qeventdispatcher_glib.cpp:129
#1  0x00007f2cf1d1a2e3 in timerSourcePrepare(GSource*, gint*) (source=0x7f2c24001130, timeout=0x7f2c364e6a24) at kernel/qeventdispatcher_glib.cpp:159
#2  0x00007f2ce5d218bd in g_main_context_prepare (context=context@entry=0x7f2c24003480, priority=priority@entry=0x7f2c364e6ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#3  0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c24003480, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#4  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c24003480, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#5  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c24003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#6  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c364e6c60, flags=...) at kernel/qeventloop.cpp:128
#7  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c364e6c60, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f2cf1a66c86 in QThread::exec() (this=0xa547410) at thread/qthread.cpp:504
#9  0x00007f2cf1a66e28 in QThread::run() (this=0xa547410) at thread/qthread.cpp:571
#10 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa547410) at thread/qthread_unix.cpp:340
#11 0x00007f2ce9640454 in start_thread (arg=0x7f2c364e7700) at pthread_create.c:334
#12 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f2c35ce6700 (LWP 27128)):
#0  0x00007f2cf1a3b234 in std::operator&(std::memory_order, std::__memory_order_modifier) (__m=std::memory_order_acquire, __mod=std::__memory_order_mask) at /usr/include/c++/5/bits/atomic_base.h:83
#1  0x00007f2cf1a638a7 in std::atomic<QMutexData*>::compare_exchange_strong(QMutexData*&, QMutexData*, std::memory_order) (__m2=std::memory_order_acquire, __m1=std::memory_order_acquire, __p2=0x1, __p1=@0x7f2c35ce58b0: 0x0, this=0x1e643f8) at /usr/include/c++/5/bits/atomic_base.h:747
#2  0x00007f2cf1a638a7 in std::atomic<QMutexData*>::compare_exchange_strong(QMutexData*&, QMutexData*, std::memory_order) (this=0x1e643f8, __p1=@0x7f2c35ce58b0: 0x0, __p2=0x1, __m=std::memory_order_acquire) at /usr/include/c++/5/atomic:475
#3  0x00007f2cf1a636cf in QAtomicOps<QMutexData*>::testAndSetAcquire<QMutexData*>(std::atomic<QMutexData*>&, QMutexData*, QMutexData*, QMutexData**) (_q_value=..., expectedValue=0x0, newValue=0x1, currentValue=0x7f2c35ce5948) at ../../include/QtCore/../../src/corelib/arch/qatomic_cxx11.h:158
#4  0x00007f2cf1a635aa in QBasicAtomicPointer<QMutexData>::testAndSetAcquire(QMutexData*, QMutexData*, QMutexData*&) (this=0x1e643f8, expectedValue=0x0, newValue=0x1, currentValue=@0x7f2c35ce5948: 0x7f2c35ce5990) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#5  0x00007f2cf1a6327d in QBasicMutex::fastTryLock(QMutexData*&) (this=0x1e643f8, current=@0x7f2c35ce5948: 0x7f2c35ce5990) at thread/qmutex.h:82
#6  0x00007f2cf1a62b2f in QMutex::lock() (this=0x1e643f8) at thread/qmutex.cpp:219
#7  0x00007f2cf1a4018a in QMutexLocker::QMutexLocker(QBasicMutex*) (this=0x7f2c35ce5990, m=0x1e643f8) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#8  0x00007f2cf1d17500 in QThreadData::canWaitLocked() (this=0x1e643d0) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:247
#9  0x00007f2cf1d1a4bf in postEventSourcePrepare(GSource*, gint*) (s=0x7f2c1c004600, timeout=0x7f2c35ce5a24) at kernel/qeventdispatcher_glib.cpp:253
#10 0x00007f2ce5d218bd in g_main_context_prepare (context=context@entry=0x7f2c1c003280, priority=priority@entry=0x7f2c35ce5ab0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3442
#11 0x00007f2ce5d2225b in g_main_context_iterate (context=context@entry=0x7f2c1c003280, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3820
#12 0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c1c003280, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#13 0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c1c003d50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#14 0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c35ce5c60, flags=...) at kernel/qeventloop.cpp:128
#15 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c35ce5c60, flags=...) at kernel/qeventloop.cpp:204
#16 0x00007f2cf1a66c86 in QThread::exec() (this=0xa3bb270) at thread/qthread.cpp:504
#17 0x00007f2cf1a66e28 in QThread::run() (this=0xa3bb270) at thread/qthread.cpp:571
#18 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa3bb270) at thread/qthread_unix.cpp:340
#19 0x00007f2ce9640454 in start_thread (arg=0x7f2c35ce6700) at pthread_create.c:334
#20 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f2c354e5700 (LWP 27129)):
#0  0x00007f2cf0e5be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ce5d2232c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f2c04003250, timeout=<optimized out>, context=0x7f2c040030b0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007f2ce5d2232c in g_main_context_iterate (context=context@entry=0x7f2c040030b0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c040030b0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c04003f50, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c354e4c60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c354e4c60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0xa38ade0) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0xa38ade0) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa38ade0) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c354e5700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f2c20aa7700 (LWP 27132)):
#0  0x00007f2cf1a63596 in QBasicAtomicPointer<QMutexData>::testAndSetAcquire(QMutexData*, QMutexData*, QMutexData*&) (this=0x3b9e458, expectedValue=0x0, newValue=0x1, currentValue=@0x7f2c20aa6948: 0x2b6462fd) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:276
#1  0x00007f2cf1a6327d in QBasicMutex::fastTryLock(QMutexData*&) (this=0x3b9e458, current=@0x7f2c20aa6948: 0x2b6462fd) at thread/qmutex.h:82
#2  0x00007f2cf1a62b2f in QMutex::lock() (this=0x3b9e458) at thread/qmutex.cpp:219
#3  0x00007f2cf1a4018a in QMutexLocker::QMutexLocker(QBasicMutex*) (this=0x7f2c20aa6990, m=0x3b9e458) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:128
#4  0x00007f2cf1d17500 in QThreadData::canWaitLocked() (this=0x3b9e430) at ../../include/QtCore/5.6.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:247
#5  0x00007f2cf1d1a4bf in postEventSourcePrepare(GSource*, gint*) (s=0x7f2c28004290, timeout=0x7f2c20aa69d4) at kernel/qeventdispatcher_glib.cpp:253
#6  0x00007f2cf1d1a538 in postEventSourceCheck(GSource*) (source=0x7f2c28004290) at kernel/qeventdispatcher_glib.cpp:263
#7  0x00007f2ce5d21d61 in g_main_context_check (context=context@entry=0x7f2c28002e80, max_priority=2147483647, fds=fds@entry=0x7f2c28001330, n_fds=n_fds@entry=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3681
#8  0x00007f2ce5d222d0 in g_main_context_iterate (context=context@entry=0x7f2c28002e80, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3837
#9  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c28002e80, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#10 0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c28003950, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#11 0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c20aa6c60, flags=...) at kernel/qeventloop.cpp:128
#12 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c20aa6c60, flags=...) at kernel/qeventloop.cpp:204
#13 0x00007f2cf1a66c86 in QThread::exec() (this=0xa448df0) at thread/qthread.cpp:504
#14 0x00007f2cf1a66e28 in QThread::run() (this=0xa448df0) at thread/qthread.cpp:571
#15 0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0xa448df0) at thread/qthread_unix.cpp:340
#16 0x00007f2ce9640454 in start_thread (arg=0x7f2c20aa7700) at pthread_create.c:334
#17 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f2c21c1d700 (LWP 30996)):
#0  0x00007f2cf0e5be4d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2ce5d2232c in g_main_context_iterate (priority=2147483647, n_fds=1, fds=0x7f2c1001cd20, timeout=<optimized out>, context=0x7f2c1001c650) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:4135
#2  0x00007f2ce5d2232c in g_main_context_iterate (context=context@entry=0x7f2c1001c650, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3835
#3  0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2c1001c650, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#4  0x00007f2cf1d1ad86 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c1001d7a0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#5  0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c21c1cc60, flags=...) at kernel/qeventloop.cpp:128
#6  0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f2c21c1cc60, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007f2cf1a66c86 in QThread::exec() (this=0x5de9670) at thread/qthread.cpp:504
#8  0x00007f2cf1a66e28 in QThread::run() (this=0x5de9670) at thread/qthread.cpp:571
#9  0x00007f2cf1a6ecf1 in QThreadPrivate::start(void*) (arg=0x5de9670) at thread/qthread_unix.cpp:340
#10 0x00007f2ce9640454 in start_thread (arg=0x7f2c21c1d700) at pthread_create.c:334
#11 0x00007f2cf0e64ecd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f2cf7066900 (LWP 21047)):
[KCrash Handler]
#6  0x00007f2cf0daf478 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f2cf0db08fa in __GI_abort () at abort.c:89
#8  0x00007f2cf1a597ce in qt_message_fatal(QtMsgType, QMessageLogContext const&, QString const&) (context=..., message=...) at global/qlogging.cpp:1645
#9  0x00007f2cf1a55c86 in QMessageLogger::fatal(char const*, ...) const (this=0x7ffd6f7a1ec0, msg=0x7f2cf1d87f10 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:790
#10 0x00007f2cf1a4edfe in qt_assert(char const*, char const*, int) (assertion=0x7f2cf4be58ee "its.count() == 1", file=0x7f2cf4be56b0 "/opt/kde/src/kde/pim/akonadi/src/core/monitor_p.cpp", line=972) at global/qglobal.cpp:2994
#11 0x00007f2cf4af5b37 in Akonadi::MonitorPrivate::emitItemsNotification(Akonadi::Protocol::ChangeNotification const&, QVector<Akonadi::Item> const&, Akonadi::Collection const&, Akonadi::Collection const&) (this=0x1647080, msg_=..., items=..., collection=..., collectionDest=...) at /opt/kde/src/kde/pim/akonadi/src/core/monitor_p.cpp:972
#12 0x00007f2cf4af35d0 in Akonadi::MonitorPrivate::emitNotification(Akonadi::Protocol::ChangeNotification const&) (this=0x1647080, msg=...) at /opt/kde/src/kde/pim/akonadi/src/core/monitor_p.cpp:587
#13 0x00007f2cf4aa383a in Akonadi::ChangeRecorderPrivate::emitNotification(Akonadi::Protocol::ChangeNotification const&) (this=0x1647080, msg=...) at /opt/kde/src/kde/pim/akonadi/src/core/changerecorder_p.cpp:499
#14 0x00007f2cf4af49d2 in Akonadi::MonitorPrivate::dispatchNotifications() (this=0x1647080) at /opt/kde/src/kde/pim/akonadi/src/core/monitor_p.cpp:821
#15 0x00007f2cf4af4752 in Akonadi::MonitorPrivate::slotNotify(Akonadi::Protocol::ChangeNotification const&) (this=0x1647080, msg=...) at /opt/kde/src/kde/pim/akonadi/src/core/monitor_p.cpp:791
#16 0x00007f2cf4a9f2a0 in Akonadi::ChangeRecorderPrivate::slotNotify(Akonadi::Protocol::ChangeNotification const&) (this=0x1647080, msg=...) at /opt/kde/src/kde/pim/akonadi/src/core/changerecorder_p.cpp:55
#17 0x00007f2cf4ae75b5 in Akonadi::Monitor::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x1513440, _c=QMetaObject::InvokeMetaMethod, _id=36, _a=0x7ffd6f7a2730) at /opt/kde/build/kde/pim/akonadi/src/core/moc_monitor.cpp:303
#18 0x00007f2cf1ce12af in QMetaObject::activate(QObject*, int, int, void**) (sender=0x10c01a0, signalOffset=3, local_signal_index=0, argv=0x7ffd6f7a2730) at kernel/qobject.cpp:3730
#19 0x00007f2cf1ce0ab6 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=0x10c01a0, m=0x7f2cf4ea2020 <Akonadi::NotificationBusPrivate::staticMetaObject>, local_signal_index=0, argv=0x7ffd6f7a2730) at kernel/qobject.cpp:3595
#20 0x00007f2cf4bd623f in Akonadi::NotificationBusPrivate::notify(Akonadi::Protocol::ChangeNotification const&) (this=0x10c01a0, _t1=...) at /opt/kde/build/kde/pim/akonadi/src/core/moc_notificationbus_p.cpp:130
#21 0x00007f2cf4b01031 in Akonadi::NotificationBusPrivate::handleCommand(long long, Akonadi::Protocol::Command const&) (this=0x10c01a0, tag=4, cmd=...) at /opt/kde/src/kde/pim/akonadi/src/core/notificationbus_p.cpp:80
#22 0x00007f2cf4b27a85 in Akonadi::Session::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (_o=0x908e490, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7f2c50003290) at /opt/kde/build/kde/pim/akonadi/src/core/moc_session.cpp:117
#23 0x00007f2cf1cd9759 in QMetaCallEvent::placeMetaCall(QObject*) (this=0x7f2c500050b0, object=0x908e490) at kernel/qobject.cpp:495
#24 0x00007f2cf1cda7f2 in QObject::event(QEvent*) (this=0x908e490, e=0x7f2c500050b0) at kernel/qobject.cpp:1256
#25 0x00007f2cf2cd25b0 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=0x103a060, receiver=0x908e490, e=0x7f2c500050b0) at kernel/qapplication.cpp:3804
#26 0x00007f2cf2ccf97b in QApplication::notify(QObject*, QEvent*) (this=0x7ffd6f7a3740, receiver=0x908e490, e=0x7f2c500050b0) at kernel/qapplication.cpp:3163
#27 0x00007f2cf1ca064c in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x908e490, event=0x7f2c500050b0) at kernel/qcoreapplication.cpp:1015
#28 0x00007f2cf1ca4682 in QCoreApplication::sendEvent(QObject*, QEvent*) (receiver=0x908e490, event=0x7f2c500050b0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#29 0x00007f2cf1ca1a34 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) (receiver=0x0, event_type=0, data=0x1037710) at kernel/qcoreapplication.cpp:1650
#30 0x00007f2cf1ca13b4 in QCoreApplication::sendPostedEvents(QObject*, int) (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1508
#31 0x00007f2cf1d1a57e in postEventSourceDispatch(GSource*, GSourceFunc, gpointer) (s=0x10915a0) at kernel/qeventdispatcher_glib.cpp:270
#32 0x00007f2ce5d22137 in g_main_context_dispatch (context=0x7f2cd00016f0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3154
#33 0x00007f2ce5d22137 in g_main_context_dispatch (context=context@entry=0x7f2cd00016f0) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3769
#34 0x00007f2ce5d22390 in g_main_context_iterate (context=context@entry=0x7f2cd00016f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3840
#35 0x00007f2ce5d2243c in g_main_context_iteration (context=0x7f2cd00016f0, may_block=1) at /build/glib2.0-2CrUwg/glib2.0-2.48.0/./glib/gmain.c:3901
#36 0x00007f2cf1d1ad57 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x108c6c0, flags=...) at kernel/qeventdispatcher_glib.cpp:417
#37 0x00007f2cda749a8c in QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x108c6c0, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115
#38 0x00007f2cf1c9cfc2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd6f7a3650, flags=...) at kernel/qeventloop.cpp:128
#39 0x00007f2cf1c9d2be in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7ffd6f7a3650, flags=...) at kernel/qeventloop.cpp:204
#40 0x00007f2cf1ca0d96 in QCoreApplication::exec() () at kernel/qcoreapplication.cpp:1285
#41 0x00007f2cf20cb538 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1607
#42 0x00007f2cf2ccf35f in QApplication::exec() () at kernel/qapplication.cpp:2979
#43 0x00000000004058f8 in main(int, char**) (argc=1, argv=0x7ffd6f7a3dc8) at /opt/kde/src/kde/kdepim/kontact/src/main.cpp:223

Possible duplicates by query: bug 355096, bug 354699, bug 353914, bug 353057, bug 352840.

Reported using DrKonqi
Comment 1 Andreas Cord-Landwehr 2016-04-24 12:38:08 UTC 
After today's rebuild of PIM and its libraries, I cannot reproduce anymore.