Bug 346612

Summary: Crash on removing panel
Product: [Plasma] plasmashell Reporter: John Moore <john.moore.ga>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED DUPLICATE    
Severity: crash CC: bhush94, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.2.2   
Target Milestone: 1.0   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description John Moore 2015-04-25 02:10:22 UTC 
Application: plasmashell (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-15-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
I removed a panel from the taskbar and it crashed.  Getting everything reset was a pain, since undo was not an option.

-- 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 0x7f31fb2a37c0 (LWP 1667))]

Thread 25 (Thread 0x7f31dffff700 (LWP 1685)):
#0  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31d40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#1  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f31dfffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#2  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#3  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#4  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0xcf3b40) at thread/qthread_unix.cpp:337
#5  0x00007f31f58db6aa in start_thread (arg=0x7f31dffff700) at pthread_create.c:333
#6  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 24 (Thread 0x7f31d114f700 (LWP 1712)):
#0  0x00007f31f605049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f27a42f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f276096c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f31d114ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0xf5a4e0) at thread/qthread_unix.cpp:337
#10 0x00007f31f58db6aa in start_thread (arg=0x7f31d114f700) at pthread_create.c:333
#11 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 23 (Thread 0x7f31cb3c2700 (LWP 1744)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f31fa3df644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007f31fa3df689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007f31f58db6aa in start_thread (arg=0x7f31cb3c2700) at pthread_create.c:333
#4  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 22 (Thread 0x7f314a206700 (LWP 1747)):
#0  0x00007f31f27a57a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f2760852 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31440008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f314a205de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0xf35c30) at thread/qthread_unix.cpp:337
#9  0x00007f31f58db6aa in start_thread (arg=0x7f314a206700) at pthread_create.c:333
#10 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 21 (Thread 0x7f3148b29700 (LWP 1748)):
#0  testAndSetRelaxed<QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x11c0cc8: 0x0) at ../../include/QtCore/../../src/corelib/arch/qatomic_x86.h:259
#1  testAndSetRelease<QMutexData*, QMutexData*> (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, _q_value=@0x11c0cc8: 0x0) at ../../include/QtCore/../../src/corelib/thread/qgenericatomic.h:175
#2  testAndSetRelease (currentValue=<synthetic pointer>, newValue=0x0, expectedValue=0x1, this=this@entry=0x11c0cc8) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:272
#3  fastTryUnlock (current=<synthetic pointer>, this=this@entry=0x11c0cc8) at thread/qmutex.h:85
#4  QMutex::unlock (this=this@entry=0x11c0cc8) at thread/qmutex.cpp:264
#5  0x00007f31f696c5b5 in unlock (this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:138
#6  ~QMutexLocker (this=<synthetic pointer>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:132
#7  canWaitLocked (this=<optimized out>) at ../../include/QtCore/5.4.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:244
#8  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f313c0012d0) at kernel/qeventdispatcher_glib.cpp:254
#9  postEventSourceCheck (source=0x7f313c0012d0) at kernel/qeventdispatcher_glib.cpp:264
#10 0x00007f31f27608c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f313c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#14 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f3148b28de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#15 0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#16 0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#17 0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x11985e0) at thread/qthread_unix.cpp:337
#18 0x00007f31f58db6aa in start_thread (arg=0x7f3148b29700) at pthread_create.c:333
#19 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 20 (Thread 0x7f31427fe700 (LWP 1758)):
#0  0x00007f31f2760dbd in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31300008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#3  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f31427fdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#4  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#5  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x13aa600) at thread/qthread_unix.cpp:337
#7  0x00007f31f58db6aa in start_thread (arg=0x7f31427fe700) at pthread_create.c:333
#8  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 19 (Thread 0x7f312ffff700 (LWP 1760)):
#0  0x00007ffe5d9aec49 in clock_gettime ()
#1  0x00007f31f606e38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f31f678bcb6 in qt_clock_gettime (ts=0x7f312fffeb40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007f31f696a639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f31280030d0) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f31f696aba5 in QTimerInfoList::timerWait (this=0x7f31280030d0, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f31f696c03e in timerSourcePrepareHelper (timeout=0x7f312fffec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f312fffec14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f31f27603fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31280008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f312fffede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x1591db0) at thread/qthread_unix.cpp:337
#17 0x00007f31f58db6aa in start_thread (arg=0x7f312ffff700) at pthread_create.c:333
#18 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 18 (Thread 0x7f312effe700 (LWP 1761)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31200008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f312effdde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x1658e60) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f312effe700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 17 (Thread 0x7f312dffd700 (LWP 1783)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31240008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f312dffcde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x1740b00) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f312dffd700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 16 (Thread 0x7f312cffc700 (LWP 1795)):
#0  0x00007f31f27a5789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f27608cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31180008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f312cffbde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x186cf80) at thread/qthread_unix.cpp:337
#9  0x00007f31f58db6aa in start_thread (arg=0x7f312cffc700) at pthread_create.c:333
#10 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 15 (Thread 0x7f311c94e700 (LWP 1804)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31100008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f311c94dde0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0xf60400) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f311c94e700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 14 (Thread 0x7f30d9a3b700 (LWP 1955)):
#0  0x00007f31f27a57a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f275fe5e in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f3104003120, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#5  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30d9a3adc0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#7  0x00007f30dbcc7cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#8  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x4ddfa90) at thread/qthread_unix.cpp:337
#9  0x00007f31f58db6aa in start_thread (arg=0x7f30d9a3b700) at pthread_create.c:333
#10 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 13 (Thread 0x7f311e14f700 (LWP 1972)):
#0  0x00007ffe5d9aecb0 in clock_gettime ()
#1  0x00007f31f606e38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f31f678bcb6 in qt_clock_gettime (ts=0x7f311e14eb40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007f31f696a639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f310c6bd700) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f31f696aba5 in QTimerInfoList::timerWait (this=0x7f310c6bd700, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f31f696c03e in timerSourcePrepareHelper (timeout=0x7f311e14ec14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f311e14ec14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f31f27603fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f310c710520, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f311e14ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x1a79000) at thread/qthread_unix.cpp:337
#17 0x00007f31f58db6aa in start_thread (arg=0x7f311e14f700) at pthread_create.c:333
#18 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 12 (Thread 0x7f30d3de6700 (LWP 2035)):
#0  0x00007ffe5d9aec58 in clock_gettime ()
#1  0x00007f31f606e38d in __GI___clock_gettime (clock_id=<optimized out>, tp=<optimized out>) at ../sysdeps/unix/clock_gettime.c:115
#2  0x00007f31f678bcb6 in qt_clock_gettime (ts=0x7f30d3de5b40, clock=<optimized out>) at tools/qelapsedtimer_unix.cpp:105
#3  do_gettime (frac=<synthetic pointer>, sec=<synthetic pointer>) at tools/qelapsedtimer_unix.cpp:161
#4  qt_gettime () at tools/qelapsedtimer_unix.cpp:170
#5  0x00007f31f696a639 in QTimerInfoList::updateCurrentTime (this=this@entry=0x7f311401f080) at kernel/qtimerinfo_unix.cpp:84
#6  0x00007f31f696aba5 in QTimerInfoList::timerWait (this=0x7f311401f080, tm=...) at kernel/qtimerinfo_unix.cpp:379
#7  0x00007f31f696c03e in timerSourcePrepareHelper (timeout=0x7f30d3de5c14, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#8  timerSourcePrepare (source=<optimized out>, timeout=0x7f30d3de5c14) at kernel/qeventdispatcher_glib.cpp:160
#9  0x00007f31f27603fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f311408ce70, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#13 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30d3de5de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#14 0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#15 0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#16 0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x4f66340) at thread/qthread_unix.cpp:337
#17 0x00007f31f58db6aa in start_thread (arg=0x7f30d3de6700) at pthread_create.c:333
#18 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 11 (Thread 0x7f30d2085700 (LWP 2101)):
#0  0x00007f31f27603b0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f3114076360, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30d2084de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x6c41860) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f30d2085700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 10 (Thread 0x7f311f7ff700 (LWP 10878)):
#0  0x00007f31f605049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f27a42f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f276096c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31141456f0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f311f7fede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x53d56b0) at thread/qthread_unix.cpp:337
#10 0x00007f31f58db6aa in start_thread (arg=0x7f311f7ff700) at pthread_create.c:333
#11 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f30ca08a700 (LWP 10887)):
#0  0x00007f31f27604f5 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31146105b0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30ca089de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x5cf2470) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f30ca08a700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f30c8fd9700 (LWP 10894)):
#0  0x00007f31f27604f1 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f3114623ae0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30c8fd8de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x79e83d0) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f30c8fd9700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f31437ff700 (LWP 20072)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f3138282780, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f31437fee00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x865d560) at thread/qthread_unix.cpp:337
#7  0x00007f31f58db6aa in start_thread (arg=0x7f31437ff700) at pthread_create.c:333
#8  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f30cb9b2700 (LWP 20073)):
#0  QElapsedTimer::isMonotonic () at tools/qelapsedtimer_unix.cpp:149
#1  0x00007f31f696ab3e in QTimerInfoList::repairTimersIfNeeded (this=0x7f31144b19b0) at kernel/qtimerinfo_unix.cpp:155
#2  0x00007f31f696abb3 in QTimerInfoList::timerWait (this=0x7f31144b19b0, tm=...) at kernel/qtimerinfo_unix.cpp:380
#3  0x00007f31f696c40c in timerSourcePrepareHelper (timeout=0x7f30cb9b1c34, src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:127
#4  idleTimerSourcePrepare (source=<optimized out>, timeout=0x7f30cb9b1c34) at kernel/qeventdispatcher_glib.cpp:207
#5  0x00007f31f27603fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f31f2760de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f311455c610, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#9  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30cb9b1e00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#10 0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#11 0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x1349330) at thread/qthread_unix.cpp:337
#12 0x00007f31f58db6aa in start_thread (arg=0x7f30cb9b2700) at pthread_create.c:333
#13 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f30b80bd700 (LWP 20148)):
#0  0x00007f31f605049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f27a42f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f276096c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31381794a0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30b80bce00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x88954d0) at thread/qthread_unix.cpp:337
#9  0x00007f31f58db6aa in start_thread (arg=0x7f30b80bd700) at pthread_create.c:333
#10 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f30cc9b3700 (LWP 22068)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31382a2910, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30cc9b2de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x66c7e60) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f30cc9b3700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f30bb99a700 (LWP 22069)):
#0  0x00007f31f605049d in read () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f27a42f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f276096c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f2760e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f3138429770, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#6  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30bb999de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#7  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#8  0x00007f30c186be55 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/qml/QtQuick/XmlListModel/libqmlxmllistmodelplugin.so
#9  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x907c210) at thread/qthread_unix.cpp:337
#10 0x00007f31f58db6aa in start_thread (arg=0x7f30bb99a700) at pthread_create.c:333
#11 0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f30cf16f700 (LWP 22117)):
#0  0x00007f31f60548dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f31f2760ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f31f696cc6c in QEventDispatcherGlib::processEvents (this=0x7f31380de9e0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7f30cf16ede0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f31f66d0b44 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f31f845ef65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f66d5b0e in QThreadPrivate::start (arg=0x86d43b0) at thread/qthread_unix.cpp:337
#8  0x00007f31f58db6aa in start_thread (arg=0x7f30cf16f700) at pthread_create.c:333
#9  0x00007f31f605feed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f31fb2a37c0 (LWP 1667)):
[KCrash Handler]
#6  0x00007f31f837ff97 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f31f832a151 in QV4::ExecutionEngine::~ExecutionEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f31f84620d5 in QV8Engine::~QV8Engine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f31f84622b9 in QV8Engine::~QV8Engine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f31f82c7061 in QJSEngine::~QJSEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#11 0x00007f31f83c43c5 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#12 0x00007f31f83c4499 in QQmlEngine::~QQmlEngine() () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007f31f694318c in QObjectPrivate::deleteChildren (this=this@entry=0x503cfb0) at kernel/qobject.cpp:1950
#14 0x00007f31f694d7f3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1030
#15 0x00007f31f9d87089 in KDeclarative::QmlObject::~QmlObject (this=0x503ce10, __in_chrg=<optimized out>) at ../../../src/kdeclarative/qmlobject.cpp:174
#16 0x00007f31f694318c in QObjectPrivate::deleteChildren (this=this@entry=0x503c880) at kernel/qobject.cpp:1950
#17 0x00007f31f694d7f3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1030
#18 0x00007f31fafdd866 in QQuickItem::~QQuickItem() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007f31fa50e732 in PlasmaQuick::AppletQuickItem::~AppletQuickItem (this=0x503c7e0, __in_chrg=<optimized out>) at ../../../src/plasmaquick/appletquickitem.cpp:398
#20 0x00007f314a218ad9 in AppletInterface::~AppletInterface (this=0x503c7e0, __in_chrg=<optimized out>) at ../../../../src/scriptengines/qml/plasmoid/appletinterface.cpp:160
#21 0x00007f31f694318c in QObjectPrivate::deleteChildren (this=this@entry=0x4795880) at kernel/qobject.cpp:1950
#22 0x00007f31f694d7f3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1030
#23 0x00007f314a214bf4 in ~DeclarativeAppletScript (this=0x47a41a0, __in_chrg=<optimized out>) at ../../../../src/scriptengines/qml/plasmoid/declarativeappletscript.cpp:75
#24 DeclarativeAppletScript::~DeclarativeAppletScript (this=0x47a41a0, __in_chrg=<optimized out>) at ../../../../src/scriptengines/qml/plasmoid/declarativeappletscript.cpp:77
#25 0x00007f31fa77d1ef in Plasma::AppletPrivate::~AppletPrivate (this=0x47a6610, __in_chrg=<optimized out>) at ../../../src/plasma/private/applet_p.cpp:100
#26 0x00007f31fa77d3b9 in Plasma::AppletPrivate::~AppletPrivate (this=0x47a6610, __in_chrg=<optimized out>) at ../../../src/plasma/private/applet_p.cpp:109
#27 0x00007f31fa76edb9 in Plasma::Applet::~Applet (this=0x48184a0, __in_chrg=<optimized out>) at ../../../src/plasma/applet.cpp:114
#28 0x00007f31fa76edd9 in Plasma::Applet::~Applet (this=0x48184a0, __in_chrg=<optimized out>) at ../../../src/plasma/applet.cpp:115
#29 0x00007f31fa784456 in Plasma::ContainmentPrivate::~ContainmentPrivate (this=0x398b360, __in_chrg=<optimized out>) at ../../../src/plasma/private/containment_p.cpp:69
#30 0x00007f31fa7729f6 in Plasma::Containment::~Containment (this=0x398c220, __in_chrg=<optimized out>) at ../../../src/plasma/containment.cpp:94
#31 0x00007f31fa772a19 in Plasma::Containment::~Containment (this=0x398c220, __in_chrg=<optimized out>) at ../../../src/plasma/containment.cpp:95
#32 0x00007f31f694318c in QObjectPrivate::deleteChildren (this=this@entry=0x1482e60) at kernel/qobject.cpp:1950
#33 0x00007f31f694d7f3 in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:1030
#34 0x00007f31fa76edd9 in Plasma::Applet::~Applet (this=0x149e7b0, __in_chrg=<optimized out>) at ../../../src/plasma/applet.cpp:115
#35 0x00007f31f6945778 in QObject::event (this=0x149e7b0, e=<optimized out>) at kernel/qobject.cpp:1236
#36 0x00007f31f721db2c in QApplicationPrivate::notify_helper (this=0xc1c420, receiver=0x149e7b0, e=0x146abf0) at kernel/qapplication.cpp:3720
#37 0x00007f31f7223000 in QApplication::notify (this=0x7ffe5d8d6f80, receiver=0x149e7b0, e=0x146abf0) at kernel/qapplication.cpp:3503
#38 0x00007f31f6913c2b in QCoreApplication::notifyInternal (this=0x7ffe5d8d6f80, receiver=0x149e7b0, event=event@entry=0x146abf0) at kernel/qcoreapplication.cpp:935
#39 0x00007f31f6915c9b in sendEvent (event=0x146abf0, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#40 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0xc11f00) at kernel/qcoreapplication.cpp:1552
#41 0x00007f31f6916298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#42 0x00007f31f696c843 in postEventSourceDispatch (s=0xc56b80) at kernel/qeventdispatcher_glib.cpp:271
#43 0x00007f31f2760c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#44 0x00007f31f2760f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#45 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#46 0x00007f31f696cc57 in QEventDispatcherGlib::processEvents (this=0xc56b60, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#47 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x8de3340, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#48 0x00007f31f6c55262 in QBasicDrag::drag (this=0xc429d0, o=<optimized out>) at kernel/qsimpledrag.cpp:177
#49 0x00007f31f6c6db69 in QDragManager::drag (this=0x67bd420, o=o@entry=0x91ac370) at kernel/qdnd.cpp:135
#50 0x00007f31f6c6ced7 in QDrag::exec (this=this@entry=0x91ac370, supportedActions=..., defaultDropAction=<optimized out>) at kernel/qdrag.cpp:274
#51 0x00007f3140129028 in DeclarativeDragArea::mouseMoveEvent (this=this@entry=0x8990b20, event=<optimized out>) at ../../../../src/qmlcontrols/draganddrop/DeclarativeDragArea.cpp:307
#52 0x00007f31401297a3 in DeclarativeDragArea::mouseMoveEvent (this=0x8990b20, event=<optimized out>) at ../../../../src/qmlcontrols/draganddrop/DeclarativeDragArea.cpp:225
#53 0x00007f314012982c in DeclarativeDragArea::childMouseEventFilter (this=0x8990b20, item=0x98d9020, event=0x9d3d330) at ../../../../src/qmlcontrols/draganddrop/DeclarativeDragArea.cpp:330
#54 0x00007f31fafe9900 in QQuickWindowPrivate::sendFilteredMouseEvent(QQuickItem*, QQuickItem*, QEvent*, QSet<QQuickItem*>*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#55 0x00007f31fafea084 in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#56 0x00007f31fafea652 in QQuickWindowPrivate::deliverMouseEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#57 0x00007f31faff0780 in QQuickWindow::mouseMoveEvent(QMouseEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#58 0x00007f31f6c697b5 in QWindow::event (this=0x184bc20, ev=<optimized out>) at kernel/qwindow.cpp:2051
#59 0x00007f31faff1dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#60 0x00007f31fa515f9b in PlasmaQuick::Dialog::event (this=0x184bc20, event=0x7ffe5d8d6a60) at ../../../src/plasmaquick/dialog.cpp:1154
#61 0x00007f31f721db2c in QApplicationPrivate::notify_helper (this=0xc1c420, receiver=0x184bc20, e=0x7ffe5d8d6a60) at kernel/qapplication.cpp:3720
#62 0x00007f31f7223000 in QApplication::notify (this=0x7ffe5d8d6f80, receiver=0x184bc20, e=0x7ffe5d8d6a60) at kernel/qapplication.cpp:3503
#63 0x00007f31f6913c2b in QCoreApplication::notifyInternal (this=0x7ffe5d8d6f80, receiver=0x184bc20, event=0x7ffe5d8d6a60) at kernel/qcoreapplication.cpp:935
#64 0x00007f31f6c60f82 in sendSpontaneousEvent (event=<optimized out>, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#65 QGuiApplicationPrivate::processMouseEvent (e=0x8fc3200) at kernel/qguiapplication.cpp:1774
#66 0x00007f31f6c62b45 in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x8fc3200) at kernel/qguiapplication.cpp:1576
#67 0x00007f31f6c4734f in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:572
#68 0x00007f31e9394590 in userEventSourceDispatch (source=<optimized out>) at eventdispatchers/qeventdispatcher_glib.cpp:70
#69 0x00007f31f2760c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#70 0x00007f31f2760f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#71 0x00007f31f2760fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#72 0x00007f31f696cc57 in QEventDispatcherGlib::processEvents (this=0xc56b60, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#73 0x00007f31f69113e2 in QEventLoop::exec (this=this@entry=0x7ffe5d8d6e00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#74 0x00007f31f691902c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#75 0x00007f31f6c5831c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#76 0x00007f31f72197a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#77 0x000000000042fd9b in main (argc=2, argv=<optimized out>) at ../../shell/main.cpp:158

Possible duplicates by query: bug 345053, bug 338890.

Reported using DrKonqi
Comment 1 David Edmundson 2015-04-25 11:41:13 UTC 
Thanks.

There's an occasional crash in Qt whenever we remove an engine. We're working on it :)

*** This bug has been marked as a duplicate of bug 345053 ***