Application: plasmashell (5.14.3)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.3-041903-generic x86_64
Distribution: Ubuntu 18.10

-- Information about the crash:
- What I was doing when the application crashed:
Just performed a copying of a several files from one directory to another.

-- Backtrace:
Application: Плазма (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd8c2bad840 (LWP 23415))]

Thread 9 (Thread 0x7fd890d70700 (LWP 31205)):
#0  0x00007fd8c90d2f27 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd8a231e1f1 in pa_read () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#2  0x00007fd8a23a4dbe in pa_mainloop_prepare () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#3  0x00007fd8a23a5820 in pa_mainloop_iterate () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#4  0x00007fd8a23a58e0 in pa_mainloop_run () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#5  0x00007fd8a23b38f9 in ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
#6  0x00007fd8a234d6f8 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#7  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7fd892ec9700 (LWP 23551)):
#0  0x00007fd8c93f2dfc in QMutex::lock (this=this@entry=0x55577d528420) at /usr/include/c++/8/bits/atomic_base.h:742
#1  0x00007fd8c95fa619 in QMutexLocker::QMutexLocker (m=0x55577d528420, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:206
#2  QThreadData::canWaitLocked (this=0x55577d5283f0) at ../../include/QtCore/5.11.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:254
#3  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7fd88c004ba0) at kernel/qeventdispatcher_glib.cpp:259
#4  postEventSourceCheck (source=0x7fd88c004ba0) at kernel/qeventdispatcher_glib.cpp:269
#5  0x00007fd8c6753821 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fd8c6753df0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fd8c6753f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fd8c95fa15b in QEventDispatcherGlib::processEvents (this=0x7fd88c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9  0x00007fd8c95a716b in QEventLoop::exec (this=this@entry=0x7fd892ec8d20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#10 0x00007fd8c93f60b6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#11 0x00007fd8a00b88b7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#12 0x00007fd8c93ffc87 in QThreadPrivate::start (arg=0x55577d528320) at thread/qthread_unix.cpp:367
#13 0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fd8a3e5c700 (LWP 23520)):
#0  0x00007fd8c90d76d9 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd8c6753e46 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd8c6753f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd8c95fa15b in QEventDispatcherGlib::processEvents (this=0x7fd898000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fd8c95a716b in QEventLoop::exec (this=this@entry=0x7fd8a3e5bd20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fd8c93f60b6 in QThread::exec (this=this@entry=0x55577c7ec000) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fd8cafd2396 in QQuickPixmapReader::run (this=0x55577c7ec000) at util/qquickpixmapcache.cpp:934
#7  0x00007fd8c93ffc87 in QThreadPrivate::start (arg=0x55577c7ec000) at thread/qthread_unix.cpp:367
#8  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fd8ab5d3700 (LWP 23503)):
#0  0x00007fd8c80fe2eb in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd8b883d75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fd8b883d4c7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fd8abdd4700 (LWP 23502)):
#0  0x00007fd8c80fe2eb in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fd8b883d75b in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#2  0x00007fd8b883d4c7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
#3  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fd8badee700 (LWP 23468)):
#0  postEventSourcePrepare (s=0x7fd8ac0047a0, timeout=0x7fd8badedb64) at kernel/qeventdispatcher_glib.cpp:260
#1  0x00007fd8c6753379 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd8c6753d7b in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd8c6753f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd8c95fa15b in QEventDispatcherGlib::processEvents (this=0x7fd8ac000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd8c95a716b in QEventLoop::exec (this=this@entry=0x7fd8badedd40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fd8c93f60b6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fd8cad4b1f5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fd8c93ffc87 in QThreadPrivate::start (arg=0x55577c834c80) at thread/qthread_unix.cpp:367
#9  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fd8bbfff700 (LWP 23445)):
#0  0x00007fd8c6750d00 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fd8c675374a in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fd8c6753df0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fd8c6753f6c in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fd8c95fa15b in QEventDispatcherGlib::processEvents (this=0x7fd8b4000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fd8c95a716b in QEventLoop::exec (this=this@entry=0x7fd8bbffed30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fd8c93f60b6 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fd8ca746545 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007fd8c93ffc87 in QThreadPrivate::start (arg=0x7fd8ca7c0d60) at thread/qthread_unix.cpp:367
#9  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fd8c12a2700 (LWP 23426)):
#0  0x00007fd8c90d76d9 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fd8cb41c917 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fd8cb41e53a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fd8c2210159 in QXcbEventReader::run (this=0x55577c717c00) at qxcbconnection.h:409
#4  0x00007fd8c93ffc87 in QThreadPrivate::start (arg=0x55577c717c00) at thread/qthread_unix.cpp:367
#5  0x00007fd8c80f8164 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fd8c90e3def in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fd8c2bad840 (LWP 23415)):
[KCrash Handler]
#6  0x00007fd8c99b40a4 in QWindow::parent (this=0x555780f73910) at kernel/qwindow.cpp:680
#7  0x00007fd8c999fee1 in QPlatformWindow::parent (this=0x555780f89a60) at kernel/qplatformwindow.cpp:97
#8  0x00007fd8c222a64d in QXcbWindow::hide (this=0x55577d400f00) at qxcbwindow.cpp:839
#9  0x00007fd8c99bb678 in QWindowPrivate::setVisible (this=0x55577d3290b0, visible=<optimized out>) at kernel/qwindow.cpp:401
#10 0x00007fd8cb7c354b in PlasmaQuick::Dialog::setVisible(bool) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#11 0x00007fd8cb7c62e6 in PlasmaQuick::Dialog::focusOutEvent(QFocusEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#12 0x00007fd8c99bbceb in QWindow::event (this=this@entry=0x55577d2ebe10, ev=ev@entry=0x7ffd20f317b0) at kernel/qwindow.cpp:2277
#13 0x00007fd8cb0b287b in QQuickWindow::event (this=0x55577d2ebe10, e=0x7ffd20f317b0) at items/qquickwindow.cpp:1634
#14 0x00007fd8cb7c6473 in PlasmaQuick::Dialog::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#15 0x00007fd8ca0494a1 in QApplicationPrivate::notify_helper (this=this@entry=0x55577c7284f0, receiver=receiver@entry=0x55577d2ebe10, e=e@entry=0x7ffd20f317b0) at kernel/qapplication.cpp:3727
#16 0x00007fd8ca050ae0 in QApplication::notify (this=0x7ffd20f31a70, receiver=0x55577d2ebe10, e=0x7ffd20f317b0) at kernel/qapplication.cpp:3486
#17 0x00007fd8c95a8499 in QCoreApplication::notifyInternal2 (receiver=receiver@entry=0x55577d2ebe10, event=event@entry=0x7ffd20f317b0) at ../../include/QtCore/5.11.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:307
#18 0x00007fd8c99b1181 in QCoreApplication::sendSpontaneousEvent (event=0x7ffd20f317b0, receiver=0x55577d2ebe10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:237
#19 QGuiApplicationPrivate::processActivatedEvent (e=0x555780885ce0) at kernel/qguiapplication.cpp:2287
#20 0x00007fd8c99b152d in QGuiApplicationPrivate::processWindowSystemEvent (e=e@entry=0x555780885ce0) at kernel/qguiapplication.cpp:1837
#21 0x00007fd8c998bb6b in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1032
#22 0x00007fd8c22a1e5b in QPAEventDispatcherGlib::processEvents (this=0x55577c794d70, flags=...) at qeventdispatcher_glib.cpp:70
#23 0x00007fd8c95a716b in QEventLoop::exec (this=this@entry=0x7ffd20f31960, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#24 0x00007fd8c95af2e2 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#25 0x000055577b93019b in ?? ()
#26 0x00007fd8c8fed09b in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#27 0x000055577b93061a in _start ()
[Inferior 1 (process 23415) detached]

Possible duplicates by query: bug 395570, bug 388173.

Reported using DrKonqi