Bug 424174

Application: plasmashell (5.12.9)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.3.0-62-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed: I was switching between wired and wireless connection in basic built-in KDE network manager, while also browsing in Firefox.

- Custom settings of the application:

-- 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 0x7fde68de0800 (LWP 2504))]

Thread 14 (Thread 0x7fdd6e5ed700 (LWP 3171)):
[KCrash Handler]
#6  0x00007fde6681b640 in QSGSimpleTextureNode::texture() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fddb05ed963 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007fde62cd466f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fde6689da30 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007fde66848bbc in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007fde6684dac8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fde61c486db in start_thread (arg=0x7fdd6e5ed700) at pthread_create.c:463
#14 0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fdd6edee700 (LWP 3162)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558455e11cc4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x558455e11c70, cond=0x558455e11c98) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x558455e11c98, mutex=0x558455e11c70) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde6684d6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684db0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde61c486db in start_thread (arg=0x7fdd6edee700) at pthread_create.c:463
#8  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fdd89c51700 (LWP 2998)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x558455e65854) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x558455e65800, cond=0x558455e65828) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x558455e65828, mutex=0x558455e65800) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde6684d6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684db0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde61c486db in start_thread (arg=0x7fdd89c51700) at pthread_create.c:463
#8  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fdd8a6c2700 (LWP 2988)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5584553833b4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x558455383360, cond=0x558455383388) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x558455383388, mutex=0x558455383360) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde6684d6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684db0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde61c486db in start_thread (arg=0x7fdd8a6c2700) at pthread_create.c:463
#8  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fdd8b6c4700 (LWP 2972)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5584556a18d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5584556a1880, cond=0x5584556a18a8) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x5584556a18a8, mutex=0x5584556a1880) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde6684d6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684db0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde61c486db in start_thread (arg=0x7fdd8b6c4700) at pthread_create.c:463
#8  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fdd92f5e700 (LWP 2856)):
#0  0x00007fde62cfd0c3 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fde62cfe61e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fde5cf1cb28 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde5cf1d4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fde62cfe8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde62ac223a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdd958bb747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#9  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fde61c486db in start_thread (arg=0x7fdd92f5e700) at pthread_create.c:463
#11 0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fddad365700 (LWP 2771)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5584534dad94) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x5584534dad40, cond=0x5584534dad68) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x5584534dad68, mutex=0x5584534dad40) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde6684d6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684db0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde61c486db in start_thread (arg=0x7fddad365700) at pthread_create.c:463
#8  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fddae977700 (LWP 2742)):
#0  0x00007fde623b5cf9 in __GI___poll (fds=0x7fdda80055f0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde5cf1d5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde62cfe8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde62ac223a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde667ce2a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde61c486db in start_thread (arg=0x7fddae977700) at pthread_create.c:463
#9  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fde3a389700 (LWP 2586)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fde687a3fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fde687a3f68, cond=0x7fde687a3f90) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x7fde687a3f90, mutex=0x7fde687a3f68) at pthread_cond_wait.c:655
#3  0x00007fde684ad5f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007fde684ad639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007fde61c486db in start_thread (arg=0x7fde3a389700) at pthread_create.c:463
#6  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fde48976700 (LWP 2575)):
#0  0x00007fde623d18f0 in __libc_disable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:88
#1  0x00007fde623b5d0d in __GI___poll (fds=0x7fde40003ce0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#2  0x00007fde5cf1d5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde62cfe8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde62ac223a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde65c346f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fde61c486db in start_thread (arg=0x7fde48976700) at pthread_create.c:463
#10 0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7fde4a9e1700 (LWP 2555)):
#0  0x00007fde623b5cf9 in __GI___poll (fds=0x7fde3c004a00, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde5cf1d5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde62cfe8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde62ac223a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde65c346f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde61c486db in start_thread (arg=0x7fde4a9e1700) at pthread_create.c:463
#9  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fde4bfff700 (LWP 2530)):
#0  0x00007fde623b11c4 in __GI___libc_read (fd=7, buf=0x7fde4bffeb60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007fde5cf622b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fde5cf1d0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fde5cf1d570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fde62cfe8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fde62ac223a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fde6317bd45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fde61c486db in start_thread (arg=0x7fde4bfff700) at pthread_create.c:463
#11 0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fde529bf700 (LWP 2523)):
#0  0x00007fde623b5cf9 in __GI___poll (fds=0x7fde529beca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fde673da747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fde673dc36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fde553585e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007fde62ac717d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fde61c486db in start_thread (arg=0x7fde529bf700) at pthread_create.c:463
#6  0x00007fde623c2a3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fde68de0800 (LWP 2504)):
#0  0x00007fde61c4e9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7fde4c00b4d4) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007fde61c4e9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7fde4c00b480, cond=0x7fde4c00b4a8) at pthread_cond_wait.c:502
#2  0x00007fde61c4e9f3 in __pthread_cond_wait (cond=0x7fde4c00b4a8, mutex=0x7fde4c00b480) at pthread_cond_wait.c:655
#3  0x00007fde62ac85ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fde66849e7d in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fde6684ac52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007fde668a7726 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fde687e1323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#8  0x00007fde63cad83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007fde63cb5104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007fde62ca58d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fde634fd1a1 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007fde634fd6b9 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fde668a76c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fde687e1323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#15 0x00007fde63cad83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007fde63cb5104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007fde62ca58d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007fde62cfdd2e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fde62cfe4f1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fde5cf1d417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007fde5cf1d650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007fde5cf1d6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007fde62cfe88f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fde62ca390a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007fde62cac9b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00005584514c4d6a in  ()
#27 0x00007fde622c2b97 in __libc_start_main (main=0x5584514c4390, argc=1, argv=0x7ffe29862b18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe29862b08) at ../csu/libc-start.c:310
#28 0x00005584514c510a in _start ()

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