Bug 424719

Summary: Plasma crash on start, and when running krunner
Product: [Plasma] plasmashell Reporter: Greg Martyn <greg.martyn>
Component: generalAssignee: David Edmundson <kde>
Status: RESOLVED UPSTREAM    
Severity: crash CC: anthygarratt, plasma-bugs
Priority: NOR Keywords: drkonqi
Version: 5.17.5   
Target Milestone: 1.0   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Greg Martyn 2020-07-27 18:09:52 UTC 
Application: plasmashell (5.17.5)

Qt Version: 5.13.2
Frameworks Version: 5.70.0
Operating System: Linux 5.7.9-100.fc31.x86_64 x86_64
Distribution: Fedora 31 (Thirty One)

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

I get the crash report at startup. The panel with the task switcher doesn't load. If I try to run krunner, that also crashes.

Other programs are working fine though as long as I start them from a konsole window.

The crash can be reproduced every time.

-- Backtrace:
Application: Plasma (plasmashell), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc32ed25680 (LWP 2219))]

Thread 41 (Thread 0x7fc25bfff700 (LWP 2549)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc332a79943 in QWaitConditionPrivate::wait (deadline=..., this=0x55dbbd0218d0) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55dbbd0e2610, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007fc332a799d1 in QWaitCondition::wait (this=this@entry=0x55dbbd0e2618, mutex=mutex@entry=0x55dbbd0e2610, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007fc3346c44e9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55dbbd0e2608) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55dbbd0e2590) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007fc3346c478d in QSGRenderThread::run (this=0x55dbbd0e2590) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbd0e2590) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 40 (Thread 0x7fc268c80700 (LWP 2548)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 39 (Thread 0x7fc269481700 (LWP 2546)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 38 (Thread 0x7fc26a05b700 (LWP 2530)):
#0  0x00007fc3326e5a3f in poll () from /lib64/libc.so.6
#1  0x00007fc3312a086e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc332c788a3 in QEventDispatcherGlib::processEvents (this=0x7fc264000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7fc26a05ad60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc332a72cd5 in QThread::exec (this=this@entry=0x55dbbcdf3430) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc284ca2d2c in KCupsConnection::run (this=0x55dbbcdf3430) at /usr/src/debug/kde-print-manager-19.12.3-2.fc31.x86_64/libkcups/KCupsConnection.cpp:304
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbcdf3430) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 37 (Thread 0x7fc286ffd700 (LWP 2529)):
#0  0x00007fc332675e33 in __libc_enable_asynccancel () from /lib64/libc.so.6
#1  0x00007fc3326e5a27 in poll () from /lib64/libc.so.6
#2  0x00007fc3312a086e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#3  0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007fc332c788a3 in QEventDispatcherGlib::processEvents (this=0x7fc278000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7fc286ffcda0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fc332a72cd5 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbcb5ad90) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 36 (Thread 0x7fc2867fc700 (LWP 2527)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 35 (Thread 0x7fc2877fe700 (LWP 2512)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc332a79943 in QWaitConditionPrivate::wait (deadline=..., this=0x55dbbc2a6780) at thread/qwaitcondition_unix.cpp:146
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x55dbbc2237b0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#3  0x00007fc332a799d1 in QWaitCondition::wait (this=this@entry=0x55dbbc2237b8, mutex=mutex@entry=0x55dbbc2237b0, time=time@entry=18446744073709551615) at ../../include/QtCore/../../src/corelib/kernel/qdeadlinetimer.h:68
#4  0x00007fc3346c44e9 in QSGRenderThreadEventQueue::takeEvent (wait=true, this=0x55dbbc2237a8) at scenegraph/qsgthreadedrenderloop.cpp:245
#5  QSGRenderThread::processEventsAndWaitForMore (this=this@entry=0x55dbbc223730) at scenegraph/qsgthreadedrenderloop.cpp:710
#6  0x00007fc3346c478d in QSGRenderThread::run (this=0x55dbbc223730) at scenegraph/qsgthreadedrenderloop.cpp:739
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbc223730) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 34 (Thread 0x7fc287fff700 (LWP 2509)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 33 (Thread 0x7fc28c840700 (LWP 2507)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 32 (Thread 0x7fc28efe6700 (LWP 2504)):
#0  0x00007fc3326e5a3f in poll () from /lib64/libc.so.6
#1  0x00007fc3312a086e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc332c788a3 in QEventDispatcherGlib::processEvents (this=0x7fc288000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7fc28efe5d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc332a72cd5 in QThread::exec (this=this@entry=0x55dbbc241260) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc3346390da in QQuickPixmapReader::run (this=0x55dbbc241260) at util/qquickpixmapcache.cpp:962
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbc241260) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 31 (Thread 0x7fc2b0ff9700 (LWP 2469)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 30 (Thread 0x7fc2b17fa700 (LWP 2468)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 29 (Thread 0x7fc2b1ffb700 (LWP 2467)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 28 (Thread 0x7fc2b27fc700 (LWP 2466)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 27 (Thread 0x7fc2b2ffd700 (LWP 2465)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 26 (Thread 0x7fc2b37fe700 (LWP 2464)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 25 (Thread 0x7fc2b3fff700 (LWP 2463)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 24 (Thread 0x7fc2d0ff9700 (LWP 2462)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 23 (Thread 0x7fc2d17fa700 (LWP 2461)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 22 (Thread 0x7fc2d1ffb700 (LWP 2460)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 21 (Thread 0x7fc2d27fc700 (LWP 2459)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fc2d2ffd700 (LWP 2458)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fc2d37fe700 (LWP 2457)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fc2d3fff700 (LWP 2456)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fc2f4ff9700 (LWP 2455)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fc2f57fa700 (LWP 2454)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7fc2f5ffb700 (LWP 2453)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7fc2f67fc700 (LWP 2452)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7fc2f6ffd700 (LWP 2451)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7fc2f77fe700 (LWP 2450)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7fc2f7fff700 (LWP 2449)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7fc30ca87700 (LWP 2448)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7fc30d288700 (LWP 2447)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fc30da89700 (LWP 2446)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fc30e28a700 (LWP 2445)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fc30ea8b700 (LWP 2444)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fc30f28c700 (LWP 2443)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fc3198ca700 (LWP 2442)):
#0  0x00007fc331f2fd45 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc31a1cf11b in util_queue_thread_func () from /usr/lib64/dri/radeonsi_dri.so
#2  0x00007fc31a1ced2b in impl_thrd_routine () from /usr/lib64/dri/radeonsi_dri.so
#3  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fc31bfff700 (LWP 2438)):
#0  0x00007fc3326e5a3f in poll () from /lib64/libc.so.6
#1  0x00007fc3312a086e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc332c788a3 in QEventDispatcherGlib::processEvents (this=0x7fc314000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7fc31bffed80, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc332a72cd5 in QThread::exec (this=this@entry=0x55dbbb039de0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc334346399 in QQmlThreadPrivate::run (this=0x55dbbb039de0) at qml/ftw/qqmlthread.cpp:152
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x55dbbb039de0) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc321706700 (LWP 2255)):
#0  0x00007fc3326e5a3f in poll () from /lib64/libc.so.6
#1  0x00007fc3312a086e in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#2  0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc332c788a3 in QEventDispatcherGlib::processEvents (this=0x7fc31c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7fc321705d70, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc332a72cd5 in QThread::exec (this=this@entry=0x7fc33351e060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc33349af6a in QDBusConnectionManager::run (this=0x7fc33351e060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#7  0x00007fc332a73e26 in QThreadPrivate::start (arg=0x7fc33351e060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:360
#8  0x00007fc331f294e2 in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc3326f06a3 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc32ed25680 (LWP 2219)):
[KCrash Handler]
#6  0x00007fc33262b625 in raise () from /lib64/libc.so.6
#7  0x00007fc3326148d9 in abort () from /lib64/libc.so.6
#8  0x00007fc332a3db25 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1907
#9  QMessageLogger::fatal (this=this@entry=0x7ffc4358dd70, msg=msg@entry=0x7fc321cd0e70 "The Wayland connection experienced a fatal error: %s") at global/qlogging.cpp:888
#10 0x00007fc321c303a4 in QtWaylandClient::QWaylandDisplay::checkError (this=<optimized out>) at /usr/include/qt5/QtCore/qlogging.h:91
#11 0x00007fc321c303fe in QtWaylandClient::QWaylandDisplay::flushRequests (this=0x55dbbaf1c090) at qwaylanddisplay.cpp:210
#12 0x00007fc332c4d97b in QMetaObject::activate (sender=0x55dbbaf79f60, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3809
#13 0x00007fc332c788c7 in QEventDispatcherGlib::processEvents (this=0x55dbbaf79f60, flags=...) at kernel/qeventdispatcher_glib.cpp:430
#14 0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x55dbbcb5a380, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#15 0x00007fc285309c56 in KScreen::WaylandConfig::WaylandConfig (this=0x55dbbcb5a330, parent=<optimized out>) at /usr/include/qt5/QtCore/qflags.h:120
#16 0x00007fc285308bb1 in KScreen::WaylandBackend::WaylandBackend (this=0x55dbbcb5a300) at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/src/abstractbackend.h:35
#17 0x00007fc2853046a5 in qt_plugin_instance () at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/x86_64-redhat-linux-gnu/backends/kwayland/KSC_KWayland_autogen/EWIEGA46WW/moc_waylandbackend.cpp:114
#18 0x00007fc332c0ee93 in QPluginLoader::instance (this=this@entry=0x55dbbcb5a4f0) at plugin/qpluginloader.cpp:200
#19 0x00007fc2858c9104 in KScreen::BackendManager::loadBackendPlugin (loader=0x55dbbcb5a4f0, name=..., arguments=...) at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/src/backendmanager.cpp:198
#20 0x00007fc2858c97ac in KScreen::BackendManager::loadBackendInProcess (this=0x55dbbcb4d960, name=...) at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/src/backendmanager.cpp:243
#21 0x00007fc2858d521b in KScreen::ConfigOperationPrivate::loadBackend (this=this@entry=0x55dbbc9e5da0) at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/src/configoperation.cpp:138
#22 0x00007fc2858d5f73 in KScreen::GetConfigOperation::start (this=0x55dbbc9e4bc0) at /usr/src/debug/libkscreen-qt5-5.17.5-1.fc31.x86_64/src/getconfigoperation.cpp:173
#23 0x00007fc332c4e7fa in QObject::event (this=0x55dbbc9e4bc0, e=<optimized out>) at kernel/qobject.cpp:1260
#24 0x00007fc333725ab6 in QApplicationPrivate::notify_helper (this=this@entry=0x55dbbaf02e80, receiver=receiver@entry=0x55dbbc9e4bc0, e=e@entry=0x55dbbc9e5f00) at kernel/qapplication.cpp:3703
#25 0x00007fc33372f150 in QApplication::notify (this=0x7ffc4358e920, receiver=0x55dbbc9e4bc0, e=0x55dbbc9e5f00) at kernel/qapplication.cpp:3449
#26 0x00007fc332c23448 in QCoreApplication::notifyInternal2 (receiver=0x55dbbc9e4bc0, event=0x55dbbc9e5f00) at kernel/qcoreapplication.cpp:1095
#27 0x00007fc332c2648b in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55dbbaf08770) at kernel/qcoreapplication.cpp:1840
#28 0x00007fc332c78af7 in postEventSourceDispatch (s=0x55dbbaf79f80) at kernel/qeventdispatcher_glib.cpp:277
#29 0x00007fc3312a0570 in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#30 0x00007fc3312a0900 in g_main_context_iterate.isra () from /lib64/libglib-2.0.so.0
#31 0x00007fc3312a09a3 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#32 0x00007fc332c78885 in QEventDispatcherGlib::processEvents (this=0x55dbbaf79f60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#33 0x00007fc332c2223b in QEventLoop::exec (this=this@entry=0x7ffc4358e7d0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#34 0x00007fc332c2a116 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#35 0x000055dbb970e71a in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-workspace-5.17.5-1.fc31.x86_64/shell/main.cpp:219
[Inferior 1 (process 2219) detached]

The reporter indicates this bug may be a duplicate of or related to bug 424009.

Possible duplicates by query: bug 424709, bug 424593, bug 424009, bug 423951, bug 423179.

Reported using DrKonqi
Comment 1 Christoph Feck 2020-08-17 19:19:48 UTC 
Error is: "The Wayland connection experienced a fatal error". Qt cannot recover from this error.
Comment 2 Nate Graham 2021-02-25 21:29:46 UTC 
*** Bug 418794 has been marked as a duplicate of this bug. ***