Bug 414419

Application: plasmashell (5.17.3)

Qt Version: 5.12.4
Frameworks Version: 5.64.0
Operating System: Linux 5.3.0-23-generic x86_64
Distribution: Ubuntu 19.10

-- Information about the crash:
- What I was doing when the application crashed: Logging in a plasma-wayland session, waiting while my applications were being, restored. Plasma crashed, then restarted.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ae9c5b3634) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
[Current thread is 1 (Thread 0x7fa8c2ae5800 (LWP 11456))]

Thread 11 (Thread 0x7fa86e3de700 (LWP 12665)):
[KCrash Handler]
#6  0x00007fa8c5f5044a in wl_proxy_marshal_constructor () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#7  0x00007fa8c21e385b in QtWaylandClient::QWaylandWindow::handleUpdate() () at /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#8  0x00007fa8c00c0740 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/wayland-graphics-integration-client/libqt-plugin-wayland-egl.so
#9  0x00007fa8c6a9d7f1 in QOpenGLContext::swapBuffers(QSurface*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#10 0x00007fa8c816dcaa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fa8c81719d8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#14 0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fa894e73700 (LWP 11558)):
#0  0x00007fa8c66d0a52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fa8c4d22fbf in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8c4d2396b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fa896f3a700 (LWP 11553)):
#0  0x00007fa8c59622c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ae9b62b9a0) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa8c59622c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ae9b62b950, cond=0x55ae9b62b978) at pthread_cond_wait.c:508
#2  0x00007fa8c59622c6 in __pthread_cond_wait (cond=0x55ae9b62b978, mutex=0x55ae9b62b950) at pthread_cond_wait.c:638
#3  0x00007fa8c64b7def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa8c64b7ee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c81717b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa8c8171a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fa8a5666700 (LWP 11540)):
#0  0x00007fa8c61232ac in __GI___libc_read (nbytes=16, buf=0x7fa8a5665b50, fd=27) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fa8c61232ac in __GI___libc_read (fd=27, buf=0x7fa8a5665b50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fa8c4d6b63f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c4d2358e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8c4d239e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa8a5e5201c in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fa8a6a05700 (LWP 11539)):
#0  0x00007fa8c4d2058d in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa8c4d21bac in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8c4d2338f in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c4d239e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fa8b0aa1700 (LWP 11525)):
#0  0x00007fa8c59622c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ae9abad8f4) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa8c59622c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ae9abad8a0, cond=0x55ae9abad8c8) at pthread_cond_wait.c:508
#2  0x00007fa8c59622c6 in __pthread_cond_wait (cond=0x55ae9abad8c8, mutex=0x55ae9abad8a0) at pthread_cond_wait.c:638
#3  0x00007fa8c64b7def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa8c64b7ee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c81717b9 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa8c8171a1a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fa8b2a75700 (LWP 11522)):
#0  0x00007fa8c4d6fc68 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fa8c4d22fb1 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8c4d2396b in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa8c80e98aa in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#10 0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fa8ba12c700 (LWP 11521)):
#0  0x00007fa8c59622c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ae9a74c0c8) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa8c59622c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ae9a74c078, cond=0x55ae9a74c0a0) at pthread_cond_wait.c:508
#2  0x00007fa8c59622c6 in __pthread_cond_wait (cond=0x55ae9a74c0a0, mutex=0x55ae9a74c078) at pthread_cond_wait.c:638
#3  0x00007fa8ba7b197b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007fa8ba7b159b in  () at /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#6  0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fa8bbfff700 (LWP 11518)):
#0  0x00007fa8c6127c2f in __GI___poll (fds=0x7fa8b40029e0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fa8c4d23a3e in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fa8c7e14319 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#9  0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fa8c189d700 (LWP 11473)):
#0  0x00007fa8c61232ac in __GI___libc_read (nbytes=16, buf=0x7fa8c189cb60, fd=5) at ../sysdeps/unix/sysv/linux/read.c:26
#1  0x00007fa8c61232ac in __GI___libc_read (fd=5, buf=0x7fa8c189cb60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007fa8c4d6b63f in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa8c4d2358e in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa8c4d239e2 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fa8c66d06c3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fa8c64b0a75 in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fa8c6f93efa in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007fa8c64b1cc2 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fa8c595b669 in start_thread (arg=<optimized out>) at pthread_create.c:479
#12 0x00007fa8c6134323 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fa8c2ae5800 (LWP 11456)):
#0  0x00007fa8c59622c6 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55ae9c5b3634) at ../sysdeps/unix/sysv/linux/futex-internal.h:80
#1  0x00007fa8c59622c6 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ae9c5b35e0, cond=0x55ae9c5b3608) at pthread_cond_wait.c:508
#2  0x00007fa8c59622c6 in __pthread_cond_wait (cond=0x55ae9c5b3608, mutex=0x55ae9c5b35e0) at pthread_cond_wait.c:638
#3  0x00007fa8c64b7def in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fa8c64b7ee1 in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fa8c816fd87 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fa8c8170de7 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fa8c8171423 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fa8c6a6bb3d in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#9  0x00007fa8c81d267f in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fa8c895db2b in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#11 0x00007fa8b988f8aa in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/plasma/core/libcorebindingsplugin.so
#12 0x00007fa8c7216a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#13 0x00007fa8c721fe00 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#14 0x00007fa8c6678a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fa8c6a622d6 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#16 0x00007fa8c6a62504 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#17 0x00007fa8c6a3c26b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#18 0x00007fa8c2218904 in  () at /usr/lib/x86_64-linux-gnu/libQt5WaylandClient.so.5
#19 0x00007fa8c4d2384d in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa8c4d23ad0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fa8c4d23b73 in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fa8c66d06a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fa8c667763b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fa8c667f3a6 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x000055ae997af6aa in  ()
#26 0x00007fa8c60391e3 in __libc_start_main (main=0x55ae997aeb80, argc=1, argv=0x7fffa0b399b8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffa0b399a8) at ../csu/libc-start.c:308
#27 0x000055ae997afade in _start ()
[Inferior 1 (process 11456) detached]

Possible duplicates by query: bug 414411, bug 414394, bug 414388, bug 414353, bug 414323.

Reported using DrKonqi