Application: plasmashell (5.4.3)

Qt Version: 5.4.2
Operating System: Linux 4.2.0-22-generic x86_64
Distribution: Ubuntu 15.10

-- Information about the crash:
This has been reported several times but I can never mark as duplicate. Hoping for a fix soon.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbd13456800 (LWP 2859))]

Thread 18 (Thread 0x7fbcf73e6700 (LWP 2989)):
#0  0x00007fbd0a935884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbd0a8f0770 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbd0a8f111b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbd0e4c829b in QEventDispatcherGlib::processEvents (this=0x7fbcf00008e0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7fbcf73e5da0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fbd0e28c3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fbd10ae3f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x2021a30) at thread/qthread_unix.cpp:337
#9  0x00007fbd0d36e6aa in start_thread (arg=0x7fbcf73e6700) at pthread_create.c:333
#10 0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7fbcec1ce700 (LWP 2998)):
#0  0x00007fbd0a935869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbd0a8f0789 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbd0a8f111b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbd0e4c829b in QEventDispatcherGlib::processEvents (this=0x7fbce40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7fbcec1cdda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fbd0e28c3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fbd10ae3f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x2398cf0) at thread/qthread_unix.cpp:337
#9  0x00007fbd0d36e6aa in start_thread (arg=0x7fbcec1ce700) at pthread_create.c:333
#10 0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7fbce971e700 (LWP 3006)):
#0  __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:98
#1  0x00007fbd0db928e9 in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0x00007fbd0a8f11ec in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbd0e4c829b in QEventDispatcherGlib::processEvents (this=0x7fbce00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#5  0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7fbce971dda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007fbd0e28c3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007fbd10ae3f85 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x22361a0) at thread/qthread_unix.cpp:337
#9  0x00007fbd0d36e6aa in start_thread (arg=0x7fbce971e700) at pthread_create.c:333
#10 0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7fbcdbdf6700 (LWP 3007)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd12ead114 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fbd12ead159 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fbd0d36e6aa in start_thread (arg=0x7fbcdbdf6700) at pthread_create.c:333
#4  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7fbc58a7e700 (LWP 3013)):
#0  0x00007fbd0a935884 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbd0a8f1306 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbd0e4c829b in QEventDispatcherGlib::processEvents (this=0x7fbc540008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#3  0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7fbc58a7dd50, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007fbd0e28c3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007fbd11470ef6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x2ae35c0) at thread/qthread_unix.cpp:337
#7  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc58a7e700) at pthread_create.c:333
#8  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7fbc53815700 (LWP 3015)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x2af5b50) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x2af43f0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x2af4370) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc53815700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7fbc417a6700 (LWP 3027)):
#0  0x00007fbd0db8e49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbd068e9073 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.358.16
#2  0x00007fbd0a9344e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f0cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbd0a8f1190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbd0e4c829b in QEventDispatcherGlib::processEvents (this=0x7fbc3c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:420
#7  0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7fbc417a5d80, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#8  0x00007fbd0e28c3d4 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#9  0x00007fbc43a768f7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007fbd0e2912be in QThreadPrivate::start (arg=0x30efd10) at thread/qthread_unix.cpp:337
#11 0x00007fbd0d36e6aa in start_thread (arg=0x7fbc417a6700) at pthread_create.c:333
#12 0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7fbc40946700 (LWP 3040)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3568d30) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3568ed0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x3568e50) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc40946700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7fbc321ce700 (LWP 3065)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3efd620) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3eff910, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x3eff890) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc321ce700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7fbc318c8700 (LWP 3066)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x3d2b4a0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x3d2b2e0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x3d2b260) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc318c8700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7fbc23fff700 (LWP 3077)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x460f150) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4602040, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x4601fc0) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc23fff700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7fbc3883e700 (LWP 16686)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x336a5d0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x420ab60, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x420aae0) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc3883e700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7fbc21f7e700 (LWP 29247)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x4e405d0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x4d35c60, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x4d35be0) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc21f7e700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7fbc213db700 (LWP 29513)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x4ab1e30) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x5076de0, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x5076d60) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc213db700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fbc13dff700 (LWP 30619)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fbd0e29255b in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x5453ac0) at thread/qwaitcondition_unix.cpp:136
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55c5860, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:208
#3  0x00007fbd114e3b3e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fbd114e43c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fbd0e2912be in QThreadPrivate::start (arg=0x55c57e0) at thread/qthread_unix.cpp:337
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc13dff700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fbc12df6700 (LWP 12611)):
#0  0x00007fbd0db8e49d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fbd068e9073 in ?? () from /usr/lib/x86_64-linux-gnu/tls/libnvidia-tls.so.358.16
#2  0x00007fbd0a9344e0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f0cd4 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbd0a8f1190 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbd0a8f1339 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fbd0a917965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc12df6700) at pthread_create.c:333
#9  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fbc0bdd6700 (LWP 12612)):
#0  0x00007fbd0a935869 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fbd0a8f09a1 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fbd0a8f1167 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fbd0a8f1572 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fbc107574c6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007fbd0a917965 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fbd0d36e6aa in start_thread (arg=0x7fbc0bdd6700) at pthread_create.c:333
#7  0x00007fbd0db9deed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fbd13456800 (LWP 2859)):
[KCrash Handler]
#6  0x00007fbc0afdc9f8 in KAccountsUiProvider::showNewAccountDialog (this=<optimized out>) at ../../../plugins/kaccounts/kaccounts-ui-provider.cpp:247
#7  0x00007fbd0e4a1617 in QtPrivate::QSlotObjectBase::call (a=0x7ffeb6978960, r=0x5a83fe0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#8  QMetaObject::activate (sender=0x5a83fe0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3702
#9  0x00007fbc0afdc9b8 in KAccountsUiProvider::init (this=0x5a83fe0, type=<optimized out>) at ../../../plugins/kaccounts/kaccounts-ui-provider.cpp:109
#10 0x00007fbd0e4a1617 in QtPrivate::QSlotObjectBase::call (a=0x7ffeb6978b40, r=0x503bc80, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#11 QMetaObject::activate (sender=sender@entry=0x503bc80, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffeb6978b40) at kernel/qobject.cpp:3702
#12 0x00007fbd0e4a1f87 in QMetaObject::activate (sender=sender@entry=0x503bc80, m=m@entry=0x7fbd0f46f620 <QAbstractButton::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffeb6978b40) at kernel/qobject.cpp:3582
#13 0x00007fbd0f2e9fe2 in QAbstractButton::clicked (this=this@entry=0x503bc80, _t1=false) at .moc/moc_qabstractbutton.cpp:298
#14 0x00007fbd0f050914 in QAbstractButtonPrivate::emitClicked (this=0x5af2430) at widgets/qabstractbutton.cpp:534
#15 0x00007fbd0f051df9 in QAbstractButtonPrivate::click (this=0x5af2430) at widgets/qabstractbutton.cpp:527
#16 0x00007fbd0f051f74 in QAbstractButton::mouseReleaseEvent (this=0x503bc80, e=0x7ffeb6979010) at widgets/qabstractbutton.cpp:1132
#17 0x00007fbd0ef9b188 in QWidget::event (this=0x503bc80, event=0x7ffeb6979010) at kernel/qwidget.cpp:9023
#18 0x00007fbd0ef58b8c in QApplicationPrivate::notify_helper (this=this@entry=0x1edb120, receiver=receiver@entry=0x503bc80, e=e@entry=0x7ffeb6979010) at kernel/qapplication.cpp:3720
#19 0x00007fbd0ef5ec7a in QApplication::notify (this=<optimized out>, receiver=0x503bc80, e=0x7ffeb6979010) at kernel/qapplication.cpp:3280
#20 0x00007fbd0e470f1b in QCoreApplication::notifyInternal (this=0x7ffeb6979930, receiver=receiver@entry=0x503bc80, event=event@entry=0x7ffeb6979010) at kernel/qcoreapplication.cpp:935
#21 0x00007fbd0ef5d6f2 in QCoreApplication::sendSpontaneousEvent (event=0x7ffeb6979010, receiver=0x503bc80) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#22 QApplicationPrivate::sendMouseEvent (receiver=receiver@entry=0x503bc80, event=event@entry=0x7ffeb6979010, alienWidget=alienWidget@entry=0x503bc80, nativeWidget=0x568d250, buttonDown=buttonDown@entry=0x7fbd0f47ea10 <qt_button_down>, lastMouseReceiver=..., spontaneous=true) at kernel/qapplication.cpp:2751
#23 0x00007fbd0efb2440 in QWidgetWindow::handleMouseEvent (this=this@entry=0x5b28750, event=event@entry=0x7ffeb6979430) at kernel/qwidgetwindow.cpp:543
#24 0x00007fbd0efb478b in QWidgetWindow::event (this=0x5b28750, event=0x7ffeb6979430) at kernel/qwidgetwindow.cpp:210
#25 0x00007fbd0ef58b8c in QApplicationPrivate::notify_helper (this=this@entry=0x1edb120, receiver=receiver@entry=0x5b28750, e=e@entry=0x7ffeb6979430) at kernel/qapplication.cpp:3720
#26 0x00007fbd0ef5e230 in QApplication::notify (this=0x7ffeb6979930, receiver=0x5b28750, e=0x7ffeb6979430) at kernel/qapplication.cpp:3503
#27 0x00007fbd0e470f1b in QCoreApplication::notifyInternal (this=0x7ffeb6979930, receiver=receiver@entry=0x5b28750, event=event@entry=0x7ffeb6979430) at kernel/qcoreapplication.cpp:935
#28 0x00007fbd0e7973c8 in QCoreApplication::sendSpontaneousEvent (event=0x7ffeb6979430, receiver=0x5b28750) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#29 QGuiApplicationPrivate::processMouseEvent (e=0x5b0fab0) at kernel/qguiapplication.cpp:1772
#30 0x00007fbd0e799005 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x5b0fab0) at kernel/qguiapplication.cpp:1576
#31 0x00007fbd0e77e5b8 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#32 0x00007fbd0084c250 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#33 0x00007fbd0a8f0ff7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fbd0a8f1250 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#35 0x00007fbd0a8f12fc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#36 0x00007fbd0e4c827f in QEventDispatcherGlib::processEvents (this=0x1f2fc80, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#37 0x00007fbd0e46e75a in QEventLoop::exec (this=this@entry=0x7ffeb69797b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#38 0x00007fbd0e4762cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#39 0x00007fbd0e78f00c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#40 0x00007fbd0ef55025 in QApplication::exec () at kernel/qapplication.cpp:2956
#41 0x00000000004322c3 in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:176

Possible duplicates by query: bug 356143, bug 354784, bug 354123.

Reported using DrKonqi