Application: plasmashell (5.24.6)

Qt Version: 5.15.3
Frameworks Version: 5.95.0
Operating System: Linux 5.15.0-46-generic x86_64
Windowing System: X11
Distribution: Ubuntu 22.04.1 LTS
DrKonqi: 5.24.5 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:

Right after I turn on the computer and log into Plasma, if the mouse pointer is where the panel will appear the panel crashes and  soon after a new panel reopens with the crash notification.

I was able to reproduce this bug in two different machines, but both using the exact same system (Kubuntu 22.04 and Plasma 5.24.6 / Frameworks 5.95, via backports PPA)

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault

[KCrash Handler]
#4  std::__atomic_base<QThreadData*>::load(std::memory_order) const (__m=std::memory_order_relaxed, this=<error reading variable: Cannot access memory at address 0x48>) at /usr/include/c++/11/bits/atomic_base.h:836
#5  std::atomic<QThreadData*>::load(std::memory_order) const (__m=std::memory_order_relaxed, this=<error reading variable: Cannot access memory at address 0x48>) at /usr/include/c++/11/atomic:570
#6  QAtomicOps<QThreadData*>::loadRelaxed<QThreadData*>(std::atomic<QThreadData*> const&) (_q_value=<error reading variable: Cannot access memory at address 0x48>) at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:239
#7  QBasicAtomicPointer<QThreadData>::loadRelaxed() const (this=<error reading variable: Cannot access memory at address 0x48>) at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:248
#8  QObject::thread() const (this=this@entry=0x40) at kernel/qobject.cpp:1487
#9  0x00007fa436aec1a5 in QMetaObject::invokeMethodImpl(QObject*, QtPrivate::QSlotObjectBase*, Qt::ConnectionType, void*) (object=0x40, slot=0x7fa3ac0016f0, type=Qt::QueuedConnection, ret=0x0) at kernel/qmetaobject.cpp:1531
#10 0x00007fa419b4e74e in  () at /lib/x86_64-linux-gnu/libKF5ActivitiesStats.so.1
#11 0x00007fa4366d82c3 in  () at /lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#13 0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 10 (Thread 0x7fa3b75f9640 (LWP 2831) "plasmashell"):
#1  __pselect (nfds=5, readfds=0x7fa3b75f0a40, writefds=0x0, exceptfds=0x0, timeout=<optimized out>, sigmask=<optimized out>) at ../sysdeps/unix/sysv/linux/pselect.c:56
#2  0x00007fa43447d03d in  () at /lib/x86_64-linux-gnu/libusbmuxd-2.0.so.6
#3  0x00007fa43447dd88 in  () at /lib/x86_64-linux-gnu/libusbmuxd-2.0.so.6
#4  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#5  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 9 (Thread 0x7fa3b7fff640 (LWP 2821) "SessionThread"):
#1  0x00007fa434eaf85e in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa434f045c3 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa436b3b11e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fa3b0000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fa3b7ffeb40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6  0x00007fa4368f3af2 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c2358e3d0) at thread/qthread_unix.cpp:329
#8  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 8 (Thread 0x7fa3f7fff640 (LWP 2811) "CPMMListener"):
#1  0x00007fa42a1230fc in  () at /lib/x86_64-linux-gnu/libnvidia-glcore.so.515.65.01
#2  0x00007fa42a0bdb14 in  () at /lib/x86_64-linux-gnu/libnvidia-glcore.so.515.65.01
#3  0x00007fa42a0bde2a in  () at /lib/x86_64-linux-gnu/libnvidia-glcore.so.515.65.01
#4  0x00007fa42a0bb72a in  () at /lib/x86_64-linux-gnu/libnvidia-glcore.so.515.65.01
#5  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 7 (Thread 0x7fa41a52d640 (LWP 2786) "QSGRenderThread"):
#1  __futex_abstimed_wait_common (cancel=true, private=0, abstime=0x0, clockid=0, expected=0, futex_word=0x7fa4100364d4) at ./nptl/futex-internal.c:87
#2  __GI___futex_abstimed_wait_cancelable64 (futex_word=futex_word@entry=0x7fa4100364d4, expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at ./nptl/futex-internal.c:139
#3  0x00007fa436467ac1 in __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7fa410036480, cond=0x7fa4100364a8) at ./nptl/pthread_cond_wait.c:503
#4  ___pthread_cond_wait (cond=0x7fa4100364a8, mutex=0x7fa410036480) at ./nptl/pthread_cond_wait.c:627
#5  0x00007fa4368faceb in QWaitConditionPrivate::wait(QDeadlineTimer) (deadline=..., deadline=..., this=0x7fa410036480) at thread/qwaitcondition_unix.cpp:146
#6  QWaitCondition::wait(QMutex*, QDeadlineTimer) (this=this@entry=0x564c23c86708, mutex=mutex@entry=0x564c23c86700, deadline=...) at thread/qwaitcondition_unix.cpp:225
#7  0x00007fa4384f09c3 in QSGRenderThreadEventQueue::takeEvent(bool) (wait=true, this=0x564c23c866f8) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#8  QSGRenderThread::processEventsAndWaitForMore() (this=this@entry=0x564c23c86660) at scenegraph/qsgthreadedrenderloop.cpp:936
#9  0x00007fa4384f2e49 in QSGRenderThread::run() (this=0x564c23c86660) at scenegraph/qsgthreadedrenderloop.cpp:1053
#10 0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c23c86660) at thread/qthread_unix.cpp:329
#11 0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#12 0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 6 (Thread 0x7fa41b06d640 (LWP 2759) "QQuickPixmapRea"):
#1  0x00007fa434eae168 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa434eaf7eb in g_main_context_prepare () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa434f045c3 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fa436b3b11e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fa410012940, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fa41b06cb00, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x00007fa4368f3af2 in QThread::exec() (this=this@entry=0x564c23445330) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#8  0x00007fa438438a5a in QQuickPixmapReader::run() (this=0x564c23445330) at util/qquickpixmapcache.cpp:1024
#9  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c23445330) at thread/qthread_unix.cpp:329
#10 0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#11 0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 5 (Thread 0x7fa423365640 (LWP 2684) "Qt bearer threa"):
#1  0x00007fa434f04696 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa436b3b11e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fa414000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fa423364b40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007fa4368f3af2 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c22739a80) at thread/qthread_unix.cpp:329
#7  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#8  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 4 (Thread 0x7fa423fff640 (LWP 2681) "QQmlThread"):
#1  0x00007fa434f04696 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa436b3b11e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fa41c000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fa423ffeb20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007fa4368f3af2 in QThread::exec() (this=this@entry=0x564c21f6f7c0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fa4380d88c9 in QQmlThreadPrivate::run() (this=0x564c21f6f7c0) at qml/ftw/qqmlthread.cpp:155
#7  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c21f6f7c0) at thread/qthread_unix.cpp:329
#8  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 3 (Thread 0x7fa430c92640 (LWP 2476) "QDBusConnection"):
#1  0x00007fa434f04696 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fa436b3b11e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fa424000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fa430c91b10, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007fa4368f3af2 in QThread::exec() (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fa437486f0b in  () at /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x7fa437500d80) at thread/qthread_unix.cpp:329
#8  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#9  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 2 (Thread 0x7fa4318b9640 (LWP 2472) "QXcbEventQueue"):
#1  0x00007fa438b7a7e2 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa438b7c22c in xcb_wait_for_event () at /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa4319dfd08 in QXcbEventQueue::run() (this=0x564c21f751d0) at ./src/plugins/platforms/xcb/qxcbeventqueue.cpp:228
#4  0x00007fa4368f4ca1 in QThreadPrivate::start(void*) (arg=0x564c21f751d0) at thread/qthread_unix.cpp:329
#5  0x00007fa436468b43 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442
#6  0x00007fa4364faa00 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81

Thread 1 (Thread 0x7fa432085e80 (LWP 2457) "plasmashell"):
#1  0x00007fa438b7a7e2 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fa438b7ab20 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fa438b7ad77 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#4  0x00007fa438b7af55 in  () at /lib/x86_64-linux-gnu/libxcb.so.1
#5  0x00007fa438b7be45 in xcb_wait_for_reply () at /lib/x86_64-linux-gnu/libxcb.so.1
#6  0x0000564c21e57942 in  ()
#7  0x00007fa436b19783 in QtPrivate::QSlotObjectBase::call(QObject*, void**) (a=0x7ffd8c31e3d0, r=0x564c2361a6e0, this=0x564c228153a0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#8  doActivate<false>(QObject*, int, void**) (sender=0x7fa42c0080b0, signal_index=3, argv=0x7ffd8c31e3d0) at kernel/qobject.cpp:3886
#9  0x00007fa436b12a97 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) (sender=<optimized out>, m=m@entry=0x7fa436d80300 <QTimer::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7ffd8c31e3d0) at kernel/qobject.cpp:3946
#10 0x00007fa436b1d7ee in QTimer::timeout(QTimer::QPrivateSignal) (this=<optimized out>, _t1=...) at .moc/moc_qtimer.cpp:205
#11 0x00007fa436b0f32f in QObject::event(QEvent*) (this=0x7fa42c0080b0, e=0x7ffd8c31e550) at kernel/qobject.cpp:1336
#12 0x00007fa4377db713 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (this=<optimized out>, receiver=0x7fa42c0080b0, e=0x7ffd8c31e550) at kernel/qapplication.cpp:3637
#13 0x00007fa436ae1e2a in QCoreApplication::notifyInternal2(QObject*, QEvent*) (receiver=0x7fa42c0080b0, event=0x7ffd8c31e550) at kernel/qcoreapplication.cpp:1064
#14 0x00007fa436b3a3db in QTimerInfoList::activateTimers() (this=0x564c2202b800) at kernel/qtimerinfo_unix.cpp:643
#15 0x00007fa436b3ad24 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:183
#16 idleTimerSourceDispatch(GSource*, GSourceFunc, gpointer) (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:230
#17 0x00007fa434eafd1b in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fa434f046f8 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fa434ead3c3 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fa436b3b0a8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x564c2202de80, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#21 0x00007fa436ae074b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7ffd8c31e790, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#22 0x00007fa436ae8ce4 in QCoreApplication::exec() () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#23 0x0000564c21e42dce in  ()
#24 0x00007fa4363fdd90 in __libc_start_call_main (main=main@entry=0x564c21e41f70, argc=argc@entry=1, argv=argv@entry=0x7ffd8c31ea48) at ../sysdeps/nptl/libc_start_call_main.h:58
#25 0x00007fa4363fde40 in __libc_start_main_impl (main=0x564c21e41f70, argc=1, argv=0x7ffd8c31ea48, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd8c31ea38) at ../csu/libc-start.c:392
#26 0x0000564c21e42ef5 in  ()
[Inferior 1 (process 2457) detached]

Possible duplicates by query: bug 456037, bug 448857, bug 446248, bug 445231, bug 445114.

Reported using DrKonqi