Bug 443782

Application: plasmashell (5.23.0)

Qt Version: 5.15.3
Frameworks Version: 5.87.0
Operating System: Linux 5.11.0-37-generic x86_64
Windowing System: Wayland
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.0 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
Switched to wayland, logged in, and got the crash report popup right away, no app started. Using  2 externals monitors with the laptop screen disabled on this configuration.

The crash can be reproduced sometimes.

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

[New LWP 3437]
[New LWP 3500]
[New LWP 3501]
[New LWP 3502]
[New LWP 3503]
[New LWP 3545]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f79883a4aff in __GI___poll (fds=0x7fff67bbddb8, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7f79844f99c0 (LWP 3396))]

Thread 7 (Thread 0x7f7974e37700 (LWP 3545)):
#0  __GI___libc_read (nbytes=16, buf=0x7f7974e369b0, fd=17) at ../sysdeps/unix/sysv/linux/read.c:26
#1  __GI___libc_read (fd=17, buf=0x7f7974e369b0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f7986c98b2f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f7986c4febe in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f7986c50312 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f7986c504a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f79889745eb in QEventDispatcherGlib::processEvents (this=0x7f7964000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f798891887b in QEventLoop::exec (this=this@entry=0x7f7974e36bc0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#8  0x00007f7988732292 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f7989f43549 in ?? () from /lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007f798873342c in QThreadPrivate::start (arg=0x55592b7007d0) at thread/qthread_unix.cpp:329
#11 0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#12 0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f7976048700 (LWP 3503)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55592b434778) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55592b434728, cond=0x55592b434750) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55592b434750, mutex=0x55592b434728) at pthread_cond_wait.c:638
#3  0x00007f79818bde7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f79818bda7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7976849700 (LWP 3502)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55592b434778) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55592b434728, cond=0x55592b434750) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55592b434750, mutex=0x55592b434728) at pthread_cond_wait.c:638
#3  0x00007f79818bde7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f79818bda7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f7980d0e700 (LWP 3501)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55592b434778) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55592b434728, cond=0x55592b434750) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55592b434750, mutex=0x55592b434728) at pthread_cond_wait.c:638
#3  0x00007f79818bde7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f79818bda7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f798150f700 (LWP 3500)):
#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55592b434778) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55592b434728, cond=0x55592b434750) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x55592b434750, mutex=0x55592b434728) at pthread_cond_wait.c:638
#3  0x00007f79818bde7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#4  0x00007f79818bda7b in ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
#5  0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f7983b9d700 (LWP 3437)):
#0  0x00007f79883a4aff in __GI___poll (fds=0x7f797c005240, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f7986c5036e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f7986c504a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f79889745eb in QEventDispatcherGlib::processEvents (this=0x7f797c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f798891887b in QEventLoop::exec (this=this@entry=0x7f7983b9cbb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007f7988732292 in QThread::exec (this=this@entry=0x7f7989329d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f79892a5f4b in QDBusConnectionManager::run (this=0x7f7989329d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:179
#7  0x00007f798873342c in QThreadPrivate::start (arg=0x7f7989329d80 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:329
#8  0x00007f7987682609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f79883b1293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f79844f99c0 (LWP 3396)):
[KCrash Handler]
#4  0x00007f7988d24c66 in QScreen::name (this=this@entry=0x55592b25a770) at kernel/qscreen.cpp:195
#5  0x000055592aafe81a in ShellCorona::load (this=0x55592b4ed130) at ./shell/shellcorona.cpp:683
#6  0x00007f7988950d9e in QtPrivate::QSlotObjectBase::call (a=0x7fff67bbed00, r=0x55592b4ed130, this=0x55592b56c6e0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#7  doActivate<false> (sender=0x55592b4ecd80, signal_index=4, argv=0x7fff67bbed00) at kernel/qobject.cpp:3886
#8  0x00007f798894a167 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f798accc0c0 <KActivities::Consumer::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7fff67bbed00) at kernel/qobject.cpp:3946
#9  0x00007f798ac9dda5 in KActivities::Consumer::serviceStatusChanged (this=<optimized out>, _t1=<optimized out>) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_consumer.cpp:253
#10 0x00007f7988950d9e in QtPrivate::QSlotObjectBase::call (a=0x7fff67bbee20, r=0x55592b4ecd80, this=0x55592b4ad470) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#11 doActivate<false> (sender=0x55592b4d9c40, signal_index=11, argv=0x7fff67bbee20) at kernel/qobject.cpp:3886
#12 0x00007f798894a167 in QMetaObject::activate (sender=sender@entry=0x55592b4d9c40, m=m@entry=0x7f798accc180 <KActivities::ActivitiesCache::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x7fff67bbee20) at kernel/qobject.cpp:3946
#13 0x00007f798ac9dd45 in KActivities::ActivitiesCache::serviceStatusChanged (this=this@entry=0x55592b4d9c40, _t1=<optimized out>, _t1@entry=KActivities::Consumer::Running) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_activitiescache_p.cpp:412
#14 0x00007f798acb7046 in KActivities::ActivitiesCache::setAllActivities (this=this@entry=0x55592b4d9c40, _activities=...) at ./src/lib/activitiescache_p.cpp:270
#15 0x00007f798acb727d in KActivities::ActivitiesCache::passInfoFromReply<QList<ActivityInfo>, void (KActivities::ActivitiesCache::*)(QList<ActivityInfo> const&)> (f=(void (KActivities::ActivitiesCache::*)(class KActivities::ActivitiesCache * const, const class QList<ActivityInfo> &)) 0x7f798acb6ed0 <KActivities::ActivitiesCache::setAllActivities(QList<ActivityInfo> const&)>, watcher=0x55592b509610, this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qlist.h:164
#16 KActivities::ActivitiesCache::setAllActivitiesFromReply (this=<optimized out>, watcher=0x55592b509610) at ./src/lib/activitiescache_p.cpp:195
#17 0x00007f798ac9e63f in KActivities::ActivitiesCache::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/src/lib/KF5Activities_autogen/EWIEGA46WW/moc_activitiescache_p.cpp:201
#18 0x00007f7988950dd0 in doActivate<false> (sender=0x55592b509610, signal_index=3, argv=0x7fff67bbf0c0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#19 0x00007f798894a167 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7f79893285e0 <QDBusPendingCallWatcher::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff67bbf0c0) at kernel/qobject.cpp:3946
#20 0x00007f79893090d3 in QDBusPendingCallWatcher::finished (this=<optimized out>, _t1=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:158
#21 0x00007f79893091d8 in QDBusPendingCallWatcherPrivate::_q_finished (this=<optimized out>) at qdbuspendingcall.cpp:494
#22 QDBusPendingCallWatcher::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qdbuspendingcall.cpp:86
#23 0x00007f7988947919 in QObject::event (this=0x55592b509610, e=0x55592b282240) at kernel/qobject.cpp:1314
#24 0x00007f7989629dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x55592b249440, receiver=receiver@entry=0x55592b509610, e=e@entry=0x55592b282240) at kernel/qapplication.cpp:3632
#25 0x00007f7989632bb8 in QApplication::notify (this=0x7fff67bbf7b0, receiver=0x55592b509610, e=0x55592b282240) at kernel/qapplication.cpp:3156
#26 0x00007f7988919d7a in QCoreApplication::notifyInternal2 (receiver=0x55592b509610, event=0x55592b282240) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:325
#27 0x00007f798891c681 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55592b222ef0) at kernel/qcoreapplication.cpp:1821
#28 0x00007f7988974f77 in postEventSourceDispatch (s=0x55592b2755f0) at kernel/qeventdispatcher_glib.cpp:277
#29 0x00007f7986c5017d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007f7986c50400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007f7986c504a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007f79889745d2 in QEventDispatcherGlib::processEvents (this=0x55592b279910, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#33 0x00007f798891887b in QEventLoop::exec (this=this@entry=0x7fff67bbf690, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#34 0x00007f7988920a34 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#35 0x000055592aacccf5 in main (argc=<optimized out>, argv=<optimized out>) at ./shell/main.cpp:238
[Inferior 1 (process 3396) detached]

The reporter indicates this bug may be a duplicate of or related to bug 443718.

Possible duplicates by query: bug 443780, bug 443738, bug 443718, bug 443708, bug 443174.

Reported using DrKonqi