[kontact] [Bug 353946] New: KMail composer lock up/crash

happy via KDE Bugzilla bugzilla_noreply at kde.org
Fri Oct 16 04:31:48 BST 2015 

https://bugs.kde.org/show_bug.cgi?id=353946

            Bug ID: 353946
           Summary: KMail composer lock up/crash
           Product: kontact
           Version: unspecified
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: hh.kde.crash at gmail.com

Application: kontact ()

Qt Version: 5.4.2
Operating System: Linux 4.2.0-16-generic x86_64
Distribution: Ubuntu Wily Werewolf (development branch)

-- Information about the crash:
Lockup happens every time, crash not so often.

Composing a new mail message in KMail (hosted in Kontact), go to send it.
Spell check as per usual.
Finish spell check, get dialog "Send Now, Send Later, Cancel" - clicking _any_
of these locks up basically everything in UI that is KDE derived/related.
Other apps are less affected (eg: Firefox, Chrome, gkrellm etc).
You can still move windows but menus are dead.

gkrellm shows ramp up of proc/sys time usage, but machine is not busy (ie: it's
blocked somewhere).  A virtual terminal, for example, is perfectly usuable
while the desktop is basically dead.

After a while (and maybe a virtual terminal swap) it appears to stop doing the
proc/system usage ramp up - but pressing "Send Now", "Send Later" or "Cancel"
will start that again.
Sometimes if you try to close Kontact it will crash (this crash)

The crash can be reproduced sometimes.

-- Backtrace:
Application: kontact (kontact), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4377ecd880 (LWP 17639))]

Thread 19 (Thread 0x7f436ffff700 (LWP 17649)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43924ec48b in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f43924ec4c9 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f436ffff700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f432caff700 (LWP 17686)):
#0  0x00007fffe8ff6941 in  ()
#1  0x00007fffe8ff6c75 in clock_gettime ()
#2  0x00007f43933ed38d in __GI___clock_gettime (clock_id=<optimized out>,
tp=tp at entry=0x7f432cafeab0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f4393d8e3a6 in qt_gettime() (ts=0x7f432cafeab0, clock=<optimized
out>) at tools/qelapsedtimer_unix.cpp:105
#4  0x00007f4393d8e3a6 in qt_gettime() (frac=<synthetic pointer>,
sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#5  0x00007f4393d8e3a6 in qt_gettime() () at tools/qelapsedtimer_unix.cpp:170
#6  0x00007f4393f11d29 in QTimerInfoList::updateCurrentTime()
(this=this at entry=0x7f4328002ed0) at kernel/qtimerinfo_unix.cpp:84
#7  0x00007f4393f12295 in QTimerInfoList::timerWait(timespec&)
(this=0x7f4328002ed0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#8  0x00007f4393f1367e in timerSourcePrepare(GSource*, gint*)
(timeout=0x7f432cafeb84, src=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:127
#9  0x00007f4393f1367e in timerSourcePrepare(GSource*, gint*)
(source=<optimized out>, timeout=timeout at entry=0x7f432cafeb84) at
kernel/qeventdispatcher_glib.cpp:160
#10 0x00007f438cfee77d in g_main_context_prepare
(context=context at entry=0x7f4328000990, priority=priority at entry=0x7f432cafec10)
at /build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3442
#11 0x00007f438cfef11b in g_main_context_iterate
(context=context at entry=0x7f4328000990, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3820
#12 0x00007f438cfef2fc in g_main_context_iteration (context=0x7f4328000990,
may_block=may_block at entry=1) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3901
#13 0x00007f4393f1429b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f43280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#14 0x00007f4393eba75a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this at entry=0x7f432cafed40, flags=..., flags at entry=...) at
kernel/qeventloop.cpp:204
#15 0x00007f4393cd83d4 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#16 0x00007f4393cdd2be in QThreadPrivate::start(void*) (arg=0x1274010) at
thread/qthread_unix.cpp:337
#17 0x00007f438dc6c6aa in start_thread (arg=0x7f432caff700) at
pthread_create.c:333
#18 0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f4323fd3700 (LWP 17689)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f4323fd3700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f43237d2700 (LWP 17690)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f43237d2700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f4322fd1700 (LWP 17691)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f4322fd1700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f43227d0700 (LWP 17692)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f43227d0700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f4321fcf700 (LWP 17693)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f4321fcf700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f43217ce700 (LWP 17694)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f43217ce700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f4320fcd700 (LWP 17695)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f4320fcd700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f43207cc700 (LWP 17696)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f432799ab6b in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#2  0x00007f432799a708 in  () at /usr/lib/x86_64-linux-gnu/dri/swrast_dri.so
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f43207cc700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f431fb85700 (LWP 17697)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fa5b4 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431fb85700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f431f384700 (LWP 17698)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431f384700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f4316b83700 (LWP 17699)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f4316b83700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f431eb83700 (LWP 17700)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431eb83700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f431e382700 (LWP 17701)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431e382700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f431db81700 (LWP 17702)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431db81700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f431d380700 (LWP 17703)):
#0  0x00007f438dc71da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f43921fb5e3 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#2  0x00007f439251c341 in  () at /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007f438dc6c6aa in start_thread (arg=0x7f431d380700) at
pthread_create.c:333
#4  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f42e0b85700 (LWP 18683)):
#0  0x00007f438dc72149 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f4393cde496 in QWaitCondition::wait(QMutex*, unsigned long)
(time=30000, this=0x29906b0) at thread/qwaitcondition_unix.cpp:126
#2  0x00007f4393cde496 in QWaitCondition::wait(QMutex*, unsigned long)
(time=30000, this=0x29906b0) at thread/qwaitcondition_unix.cpp:134
#3  0x00007f4393cde496 in QWaitCondition::wait(QMutex*, unsigned long)
(this=this at entry=0x3bf8fb0, mutex=mutex at entry=0x2930fd0, time=30000) at
thread/qwaitcondition_unix.cpp:208
#4  0x00007f4393cda003 in QThreadPoolThread::run() (this=0x3bf8fa0) at
thread/qthreadpool.cpp:127
#5  0x00007f4393cdd2be in QThreadPrivate::start(void*) (arg=0x3bf8fa0) at
thread/qthread_unix.cpp:337
#6  0x00007f438dc6c6aa in start_thread (arg=0x7f42e0b85700) at
pthread_create.c:333
#7  0x00007f43933deeed in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f4377ecd880 (LWP 17639)):
[KCrash Handler]
#6  0x00007f4393cd54e5 in QMutex::lock() (currentValue=<synthetic pointer>,
newValue=0x1, expectedValue=0x0, _q_value=@0x78: <error reading variable>) at
../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#7  0x00007f4393cd54e5 in QMutex::lock() (currentValue=<synthetic pointer>,
newValue=<optimized out>, expectedValue=0x0, _q_value=@0x78: <error reading
variable>) at
../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:166
#8  0x00007f4393cd54e5 in QMutex::lock() (currentValue=<synthetic pointer>,
newValue=<optimized out>, expectedValue=0x0, this=0x78, this at entry=0x1) at
../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:270
#9  0x00007f4393cd54e5 in QMutex::lock() (current=<synthetic pointer>,
this=0x78, this at entry=0x1) at thread/qmutex.h:82
#10 0x00007f4393cd54e5 in QMutex::lock() (this=this at entry=0x78) at
thread/qmutex.cpp:212
#11 0x00007f4393ebe7d9 in QCoreApplication::postEvent(QObject*, QEvent*, int)
(receiver=receiver at entry=0x539c1a0, event=0x618a800, priority=priority at entry=0)
at kernel/qcoreapplication.cpp:1305
#12 0x00007f4393eebe61 in QObject::deleteLater() (this=this at entry=0x539c1a0) at
kernel/qobject.cpp:2125
#13 0x00007f42ffd246c5 in PotentialPhishingEmailJob::start()
(this=this at entry=0x539c1a0) at
../../kmail/editor/potentialphishingemail/potentialphishingemailjob.cpp:90
#14 0x00007f42ffd0e33d in KMComposeWin::slotCheckSendNow() (this=0x4fc9470) at
../../kmail/editor/kmcomposewin.cpp:2862
#15 0x00007f4393eed617 in QMetaObject::activate(QObject*, int, int, void**)
(a=0x7fffe8f75410, r=0x4fc9470, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#16 0x00007f4393eed617 in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x2a00f40, signalOffset=<optimized out>, local_signal_index=<optimized
out>, argv=<optimized out>) at kernel/qobject.cpp:3702
#17 0x00007f4393eed78a in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x3e63ef0, signalOffset=<optimized out>, local_signal_index=<optimized
out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#18 0x00007f438579a912 in Sonnet::Dialog::done(QString const&) () at
/usr/lib/x86_64-linux-gnu/libKF5SonnetUi.so.5
#19 0x00007f4385793219 in Sonnet::Dialog::slotFinished() () at
/usr/lib/x86_64-linux-gnu/libKF5SonnetUi.so.5
#20 0x00007f4393eed78a in QMetaObject::activate(QObject*, int, int, void**)
(sender=0x1854fd0, signalOffset=<optimized out>, local_signal_index=<optimized
out>, argv=<optimized out>) at kernel/qobject.cpp:3717
#21 0x00007f4393eed78a in QMetaObject::activate(QObject*, int, int, void**)
(sender=sender at entry=0x4e3a8b0, signalOffset=<optimized out>,
local_signal_index=local_signal_index at entry=2, argv=argv at entry=0x7fffe8f757d0)
at kernel/qobject.cpp:3717
#22 0x00007f4393eedf87 in QMetaObject::activate(QObject*, QMetaObject const*,
int, void**) (sender=sender at entry=0x4e3a8b0, m=m at entry=0x7f4394ca1620
<QAbstractButton::staticMetaObject>,
local_signal_index=local_signal_index at entry=2, argv=argv at entry=0x7fffe8f757d0)
at kernel/qobject.cpp:3582
#23 0x00007f4394b1bfe2 in QAbstractButton::clicked(bool)
(this=this at entry=0x4e3a8b0, _t1=false) at .moc/moc_qabstractbutton.cpp:298
#24 0x00007f4394882914 in QAbstractButtonPrivate::emitClicked()
(this=0x5512c40) at widgets/qabstractbutton.cpp:534
#25 0x00007f4394883df9 in QAbstractButtonPrivate::click() (this=0x5512c40) at
widgets/qabstractbutton.cpp:527
#26 0x00007f4394883f74 in QAbstractButton::mouseReleaseEvent(QMouseEvent*)
(this=0x4e3a8b0, e=0x7fffe8f75ca0) at widgets/qabstractbutton.cpp:1132
#27 0x00007f43947cd188 in QWidget::event(QEvent*) (this=0x4e3a8b0,
event=0x7fffe8f75ca0) at kernel/qwidget.cpp:9023
#28 0x00007f439478ab8c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this at entry=0x114a600, receiver=receiver at entry=0x4e3a8b0,
e=e at entry=0x7fffe8f75ca0) at kernel/qapplication.cpp:3720
#29 0x00007f4394790c7a in QApplication::notify(QObject*, QEvent*)
(this=<optimized out>, receiver=0x4e3a8b0, e=0x7fffe8f75ca0) at
kernel/qapplication.cpp:3280
#30 0x00007f4393ebcf1b in QCoreApplication::notifyInternal(QObject*, QEvent*)
(this=0x7fffe8f766d0, receiver=receiver at entry=0x4e3a8b0,
event=event at entry=0x7fffe8f75ca0) at kernel/qcoreapplication.cpp:935
#31 0x00007f439478f6f2 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool)
(event=0x7fffe8f75ca0, receiver=0x4e3a8b0) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#32 0x00007f439478f6f2 in QApplicationPrivate::sendMouseEvent(QWidget*,
QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool)
(receiver=receiver at entry=0x4e3a8b0, event=event at entry=0x7fffe8f75ca0,
alienWidget=alienWidget at entry=0x4e3a8b0, nativeWidget=0x3e63ef0,
buttonDown=buttonDown at entry=0x7f4394cb0a10 <qt_button_down>,
lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#33 0x00007f43947e4440 in QWidgetWindow::handleMouseEvent(QMouseEvent*)
(this=this at entry=0x5942900, event=event at entry=0x7fffe8f760c0) at
kernel/qwidgetwindow.cpp:543
#34 0x00007f43947e678b in QWidgetWindow::event(QEvent*) (this=0x5942900,
event=0x7fffe8f760c0) at kernel/qwidgetwindow.cpp:210
#35 0x00007f439478ab8c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this at entry=0x114a600, receiver=receiver at entry=0x5942900,
e=e at entry=0x7fffe8f760c0) at kernel/qapplication.cpp:3720
#36 0x00007f4394790230 in QApplication::notify(QObject*, QEvent*)
(this=0x7fffe8f766d0, receiver=0x5942900, e=0x7fffe8f760c0) at
kernel/qapplication.cpp:3503
#37 0x00007f4393ebcf1b in QCoreApplication::notifyInternal(QObject*, QEvent*)
(this=0x7fffe8f766d0, receiver=receiver at entry=0x5942900,
event=event at entry=0x7fffe8f760c0) at kernel/qcoreapplication.cpp:935
#38 0x00007f43941df3c8 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
(event=0x7fffe8f760c0, receiver=0x5942900) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#39 0x00007f43941df3c8 in
QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*)
(e=0x18d2f90) at kernel/qguiapplication.cpp:1772
#40 0x00007f43941e1005 in
QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*)
(e=e at entry=0x18d2f90) at kernel/qguiapplication.cpp:1576
#41 0x00007f43941c65b8 in
QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(flags=...) at kernel/qwindowsysteminterface.cpp:572
#42 0x00007f4377b9c1e0 in userEventSourceDispatch(GSource*, GSourceFunc,
gpointer) (source=<optimized out>) at
eventdispatchers/qeventdispatcher_glib.cpp:70
#43 0x00007f438cfeeff7 in g_main_context_dispatch (context=0x7f43700016f0) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3154
#44 0x00007f438cfeeff7 in g_main_context_dispatch
(context=context at entry=0x7f43700016f0) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3769
#45 0x00007f438cfef250 in g_main_context_iterate
(context=context at entry=0x7f43700016f0, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3840
#46 0x00007f438cfef2fc in g_main_context_iteration (context=0x7f43700016f0,
may_block=may_block at entry=1) at
/build/glib2.0-3UmwzF/glib2.0-2.46.0/./glib/gmain.c:3901
#47 0x00007f4393f1427f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x1182290, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#48 0x00007f4393eba75a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this at entry=0x7fffe8f76440, flags=..., flags at entry=...) at
kernel/qeventloop.cpp:204
#49 0x00007f4393ec22cc in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1188
#50 0x00007f43941d700c in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1510
#51 0x00007f4394787025 in QApplication::exec() () at
kernel/qapplication.cpp:2956
#52 0x0000000000404af1 in main(int, char**) (argc=1, argv=0x7fffe8f76828) at
../../../kontact/src/main.cpp:220

Possible duplicates by query: bug 352646, bug 351357, bug 350096, bug 348572,
bug 348470.

Reported using DrKonqi

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